diff --git a/.github/workflows/npm_release.yml b/.github/workflows/npm_release.yml index ea5ebaa3..b3abef46 100644 --- a/.github/workflows/npm_release.yml +++ b/.github/workflows/npm_release.yml @@ -3,19 +3,23 @@ on: branches: - main tags: - - 'v*' + - "v*" env: NPM_TAG: "next" + XCODE_VERSION: "^15.0" jobs: build: name: Build - runs-on: macos-12 + runs-on: macos-14 outputs: npm_version: ${{ steps.npm_version_output.outputs.NPM_VERSION }} npm_tag: ${{ steps.npm_version_output.outputs.NPM_TAG }} steps: + - uses: maxim-lobanov/setup-xcode@v1 + with: + xcode-version: ${{env.XCODE_VERSION}} - uses: actions/checkout@v3 with: fetch-depth: 0 @@ -26,8 +30,8 @@ jobs: key: ${{ hashFiles('download_llvm.sh') }} - uses: actions/setup-node@v3 with: - node-version: 18 - registry-url: 'https://registry.npmjs.org' + node-version: 20 + registry-url: "https://registry.npmjs.org" - name: Install Python uses: actions/setup-python@v4 with: @@ -55,12 +59,12 @@ jobs: echo NPM_VERSION=$NPM_VERSION >> $GITHUB_OUTPUT echo NPM_TAG=$NPM_TAG >> $GITHUB_OUTPUT - name: Build - run: npm run build + run: npm run build-ios - name: Upload npm package artifact uses: actions/upload-artifact@v3 with: name: npm-package - path: dist/nativescript-ios-${{env.NPM_VERSION}}.tgz + path: dist/nativescript-ios-${{steps.npm_version_output.outputs.NPM_VERSION}}.tgz - name: Upload dSYMs artifact uses: actions/upload-artifact@v3 with: @@ -68,9 +72,12 @@ jobs: path: dist/dSYMs test: name: Test - runs-on: macos-12 + runs-on: macos-14 needs: build steps: + - uses: maxim-lobanov/setup-xcode@v1 + with: + xcode-version: ${{env.XCODE_VERSION}} - uses: actions/checkout@v3 - name: LLVM cache uses: actions/cache@v3 @@ -79,7 +86,7 @@ jobs: key: ${{ hashFiles('download_llvm.sh') }} - uses: actions/setup-node@v3 with: - node-version: 18 + node-version: 20 - name: Install Python uses: actions/setup-python@v4 with: @@ -94,37 +101,47 @@ jobs: npm install -g @edusperoni/junit-cli-report-viewer verify-junit-xml - name: Prepare run: npm run setup-ci + - name: Prepare test folder + run: | + mkdir -p dist-test + echo TEST_FOLDER=$(pwd)/dist-test >> $GITHUB_ENV - name: Xcode Tests uses: nick-fields/retry@v2 # try to run the tests with xcpretty. If it fails then try again without xcpretty twice for better log output # the xcode tests are a bit flaky and they should never fail on this step, as this step only collects the JS test results as junit xml with: timeout_minutes: 20 - max_attempts: 3 - command: set -o pipefail && xcodebuild -project v8ios.xcodeproj -scheme TestRunner -resultBundlePath $HOME/test_results -destination platform\=iOS\ Simulator,OS\=16.2,name\=iPhone\ 14\ Pro\ Max build test | xcpretty - on_retry_command: rm -rf $HOME/test_results* - new_command_on_retry: xcodebuild -project v8ios.xcodeproj -scheme TestRunner -resultBundlePath $HOME/test_results -destination platform\=iOS\ Simulator,OS\=16.2,name\=iPhone\ 14\ Pro\ Max build test + max_attempts: 2 + command: set -o pipefail && xcodebuild -project v8ios.xcodeproj -scheme TestRunner -resultBundlePath $TEST_FOLDER/test_results -destination platform\=iOS\ Simulator,OS\=17.2,name\=iPhone\ 15\ Pro\ Max build test | xcpretty + on_retry_command: rm -rf $TEST_FOLDER/test_results* && xcrun simctl shutdown all + new_command_on_retry: xcodebuild -project v8ios.xcodeproj -scheme TestRunner -resultBundlePath $TEST_FOLDER/test_results -destination platform\=iOS\ Simulator,OS\=17.2,name\=iPhone\ 15\ Pro\ Max build test - name: Validate Test Results run: | - xcparse attachments $HOME/test_results.xcresult $HOME/test-out - find $HOME/test-out -name "*junit*.xml" -maxdepth 1 -print0 | xargs -n 1 -0 npx junit-cli-report-viewer - find $HOME/test-out -name "*junit*.xml" -maxdepth 1 -print0 | xargs -n 1 -0 npx verify-junit-xml + xcparse attachments $TEST_FOLDER/test_results.xcresult $TEST_FOLDER/test-out + find $TEST_FOLDER/test-out -name "*junit*.xml" -maxdepth 1 -print0 | xargs -n 1 -0 npx junit-cli-report-viewer + find $TEST_FOLDER/test-out -name "*junit*.xml" -maxdepth 1 -print0 | xargs -n 1 -0 npx verify-junit-xml + - name: Archive Test Result Data + if: always() + uses: actions/upload-artifact@v3 + with: + name: test-results + path: ${{env.TEST_FOLDER}}/test_results.xcresult publish: runs-on: ubuntu-latest needs: - build - test permissions: - contents: read - id-token: write + contents: read + id-token: write env: NPM_VERSION: ${{needs.build.outputs.npm_version}} NPM_TAG: ${{needs.build.outputs.npm_tag}} steps: - uses: actions/setup-node@v3 with: - node-version: 18 - registry-url: 'https://registry.npmjs.org' + node-version: 20 + registry-url: "https://registry.npmjs.org" - uses: actions/download-artifact@v3 with: name: npm-package @@ -152,7 +169,7 @@ jobs: fetch-depth: 0 - uses: actions/setup-node@v3 with: - node-version: 18 + node-version: 20 - name: Setup run: npm install - uses: actions/download-artifact@v3 @@ -162,7 +179,7 @@ jobs: - uses: actions/download-artifact@v3 with: name: NativeScript-dSYMs - path: dist + path: dist/dSYMs - name: Zip dSYMs working-directory: dist/dSYMs run: find . -maxdepth 1 -name '*.dSYM' -print | xargs -I@ zip -r @.zip @ @@ -172,3 +189,4 @@ jobs: with: artifacts: "dist/nativescript-ios-*.tgz,dist/dSYMs/*.zip" bodyFile: "body.md" + prerelease: ${{needs.build.outputs.npm_tag != 'latest'}} diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml index c339a5c7..a2ff527b 100644 --- a/.github/workflows/pull_request.yml +++ b/.github/workflows/pull_request.yml @@ -3,12 +3,16 @@ on: env: NPM_TAG: "pr" + XCODE_VERSION: "^15.0" jobs: build: name: Build - runs-on: macos-12 + runs-on: macos-14 steps: + - uses: maxim-lobanov/setup-xcode@v1 + with: + xcode-version: ${{env.XCODE_VERSION}} - uses: actions/checkout@v3 with: fetch-depth: 0 @@ -19,7 +23,7 @@ jobs: key: ${{ hashFiles('download_llvm.sh') }} - uses: actions/setup-node@v3 with: - node-version: 18 + node-version: 20 - name: Install Python uses: actions/setup-python@v4 with: @@ -39,7 +43,7 @@ jobs: echo NPM_VERSION=$NPM_VERSION >> $GITHUB_ENV npm version $NPM_VERSION --no-git-tag-version - name: Build - run: npm run build + run: npm run build-ios - name: Upload npm package artifact uses: actions/upload-artifact@v3 with: @@ -52,9 +56,12 @@ jobs: path: dist/dSYMs test: name: Test - runs-on: macos-12 + runs-on: macos-14 needs: build steps: + - uses: maxim-lobanov/setup-xcode@v1 + with: + xcode-version: ${{env.XCODE_VERSION}} - uses: actions/checkout@v3 - name: LLVM cache uses: actions/cache@v3 @@ -63,7 +70,7 @@ jobs: key: ${{ hashFiles('download_llvm.sh') }} - uses: actions/setup-node@v3 with: - node-version: 18 + node-version: 20 - name: Install Python uses: actions/setup-python@v4 with: @@ -76,18 +83,29 @@ jobs: [ ! -f /usr/local/bin/cmake ] && ln -s /usr/local/bin/cmake $(which cmake) || true brew install chargepoint/xcparse/xcparse npm install -g @edusperoni/junit-cli-report-viewer verify-junit-xml + - name: Prepare test folder + id: prepare-test-folder + run: | + mkdir -p dist-test + echo TEST_FOLDER=$(pwd)/dist-test >> $GITHUB_ENV - name: Xcode Tests uses: nick-fields/retry@v2 # try to run the tests with xcpretty. If it fails then try again without xcpretty twice for better log output # the xcode tests are a bit flaky and they should never fail on this step, as this step only collects the JS test results as junit xml with: timeout_minutes: 20 - max_attempts: 3 - command: set -o pipefail && xcodebuild -project v8ios.xcodeproj -scheme TestRunner -resultBundlePath $HOME/test_results -destination platform\=iOS\ Simulator,OS\=16.2,name\=iPhone\ 14\ Pro\ Max build test | xcpretty - on_retry_command: rm -rf $HOME/test_results* - new_command_on_retry: xcodebuild -project v8ios.xcodeproj -scheme TestRunner -resultBundlePath $HOME/test_results -destination platform\=iOS\ Simulator,OS\=16.2,name\=iPhone\ 14\ Pro\ Max build test + max_attempts: 2 + command: set -o pipefail && xcodebuild -project v8ios.xcodeproj -scheme TestRunner -resultBundlePath $TEST_FOLDER/test_results -destination platform\=iOS\ Simulator,OS\=17.2,name\=iPhone\ 15\ Pro\ Max build test | xcpretty + on_retry_command: rm -rf $TEST_FOLDER/test_results* && xcrun simctl shutdown all + new_command_on_retry: xcodebuild -project v8ios.xcodeproj -scheme TestRunner -resultBundlePath $TEST_FOLDER/test_results -destination platform\=iOS\ Simulator,OS\=17.2,name\=iPhone\ 15\ Pro\ Max build test - name: Validate Test Results run: | - xcparse attachments $HOME/test_results.xcresult $HOME/test-out - find $HOME/test-out -name "*junit*.xml" -maxdepth 1 -print0 | xargs -n 1 -0 npx junit-cli-report-viewer - find $HOME/test-out -name "*junit*.xml" -maxdepth 1 -print0 | xargs -n 1 -0 npx verify-junit-xml + xcparse attachments $TEST_FOLDER/test_results.xcresult $TEST_FOLDER/test-out + find $TEST_FOLDER/test-out -name "*junit*.xml" -maxdepth 1 -print0 | xargs -n 1 -0 npx junit-cli-report-viewer + find $TEST_FOLDER/test-out -name "*junit*.xml" -maxdepth 1 -print0 | xargs -n 1 -0 npx verify-junit-xml + - name: Archive Test Result Data + if: always() + uses: actions/upload-artifact@v3 + with: + name: test-results + path: ${{env.TEST_FOLDER}}/test_results.xcresult diff --git a/.gitignore b/.gitignore index 9aff7041..08fb1b04 100644 --- a/.gitignore +++ b/.gitignore @@ -45,8 +45,14 @@ v8 v8_build .npmrc -llvm/ +/llvm/ # v8 build files... .gclient* .cipd/ + +# project template +/project-template-ios/.build_env_vars.sh +/project-template-ios/__PROJECT_NAME__.xcodeproj/project.xcworkspace/xcshareddata/ +/project-template-vision/.build_env_vars.sh +/project-template-vision/__PROJECT_NAME__.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist \ No newline at end of file diff --git a/.gitmodules b/.gitmodules index 3c220897..fa45c83c 100644 --- a/.gitmodules +++ b/.gitmodules @@ -2,7 +2,3 @@ path = libffi url = https://github.com/NativeScript/libffi.git branch = darind/v8-ios -[submodule "llvm"] - path = llvm - url = https://github.com/NativeScript/ios-llvm.git - branch = master diff --git a/CHANGELOG.md b/CHANGELOG.md index 7819d8e0..0f7ea6b5 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,3 +1,79 @@ +## [8.7.2](https://github.com/NativeScript/ios/compare/v8.7.1...v8.7.2) (2024-05-16) + + +### Bug Fixes + +* **ios:** watchOS embedded apps ([#250](https://github.com/NativeScript/ios/issues/250)) ([1df9ea2](https://github.com/NativeScript/ios/commit/1df9ea20b6bfde5163b0486e444e5471fb8343b2)) + + + +## [8.7.1](https://github.com/NativeScript/ios/compare/v8.7.0...v8.7.1) (2024-04-26) + + +### Bug Fixes + +* url href ([#252](https://github.com/NativeScript/ios/issues/252)) ([4a6e9ad](https://github.com/NativeScript/ios/commit/4a6e9adde6950e09ac0c2fd2713e25aa919ad448)) +* Xcode 15.3+ not setting TARGET_OS_IOS correctly ([#248](https://github.com/NativeScript/ios/issues/248)) ([74e1444](https://github.com/NativeScript/ios/commit/74e144432bf17cc043d0e64affc9cb1703e80832)) + + + +# [8.7.0](https://github.com/NativeScript/ios/compare/v8.6.3...v8.7.0) (2024-04-08) + + +### Bug Fixes + +* only generate metadata for the targeted arch ([#236](https://github.com/NativeScript/ios/issues/236)) ([17a5c5f](https://github.com/NativeScript/ios/commit/17a5c5ff118c2803c0385891224fb30168268ac8)) +* Xcode 15.3+ not setting TARGET_OS_IPHONE correctly ([#242](https://github.com/NativeScript/ios/issues/242)) ([0d52056](https://github.com/NativeScript/ios/commit/0d52056fdb102f40887abd47c9bc2af5f3cca94e)) + + +### Features + +* upgrade llvm to 15.0.7 ([#238](https://github.com/NativeScript/ios/issues/238)) ([6e9b51e](https://github.com/NativeScript/ios/commit/6e9b51e48c6b8ddf65c6669a035b97e5d935f202)) +* **visionos:** support for xros platform ([#235](https://github.com/NativeScript/ios/issues/235)) ([bb364f9](https://github.com/NativeScript/ios/commit/bb364f9558c336c43a9c43d3ded46ef1ad8e8bf3)) +* **WinterCG:** URL & URLSearchParams ([#234](https://github.com/NativeScript/ios/issues/234)) ([dc3c76f](https://github.com/NativeScript/ios/commit/dc3c76f1ff74bcd5b800df55210855871bb70563)) + + + +## [8.6.3](https://github.com/NativeScript/ios/compare/v8.6.2...v8.6.3) (2023-11-08) + + +### Bug Fixes + +* prevent crashes during isolate disposal ([3d70c11](https://github.com/NativeScript/ios/commit/3d70c110e1429a1d62c9b9e23020cf7044635511)) + + + +## [8.6.2](https://github.com/NativeScript/ios/compare/v8.6.1...v8.6.2) (2023-11-01) + + +### Bug Fixes + +* only reset timer persistent if Isolate is valid ([4379583](https://github.com/NativeScript/ios/commit/4379583fc0b2fa3eacde50eb471086f55c1eec18)) + + + +## [8.6.0](https://github.com/NativeScript/ios/compare/v8.5.2...v8.6.1) (2023-10-09) + + +### Bug Fixes + +* bridge release adapters ([#224](https://github.com/NativeScript/ios/issues/224)) ([70b1802](https://github.com/NativeScript/ios/commit/70b180202dc0752d01ae5b9249cbaabae65f53cc)) +* delay isolate disposal when isolate is in use ([5a6c2ee](https://github.com/NativeScript/ios/commit/5a6c2ee5efa0c557c94ae56da0d3b3a31911d1b8)) +* don't suppress timer exceptions ([0c4b819](https://github.com/NativeScript/ios/commit/0c4b819941b0327e572772018298cf9cf181436e)) +* fix setInterval not repeating correctly ([022893f](https://github.com/NativeScript/ios/commit/022893f1dcd9a7649db73e9735ff12e9246b3585)) +* prevent JS function to native block leak ([#223](https://github.com/NativeScript/ios/issues/223)) ([a6d7332](https://github.com/NativeScript/ios/commit/a6d73323718a1de12c5a9f4865a6abfe06fd6e03)) + + +### Features + +* add interop.stringFromCString ([#228](https://github.com/NativeScript/ios/issues/228)) ([185c12d](https://github.com/NativeScript/ios/commit/185c12dc85e86747f266867fb208c71caf5fc6b3)) +* add native timers ([#221](https://github.com/NativeScript/ios/issues/221)) ([119470f](https://github.com/NativeScript/ios/commit/119470f249c5aa85c4c2d0b1c9b5b691003c1ec7)) +* add timer strong retainer annotation ([efef961](https://github.com/NativeScript/ios/commit/efef961a67519aed881637ac0291894f3325b111)) +* log the fullMessage with more details about the error ([#229](https://github.com/NativeScript/ios/issues/229)) ([d67588c](https://github.com/NativeScript/ios/commit/d67588cb3866212ccd86b105edf1207fddde2db9)) +* use node logic for globals and modules ([#215](https://github.com/NativeScript/ios/issues/215)) ([a66cc42](https://github.com/NativeScript/ios/commit/a66cc42c768ee7712d1c1f441b8c4e8e88a19eca)) + + + ## [8.5.2](https://github.com/NativeScript/ios/compare/v8.5.1...v8.5.2) (2023-05-24) diff --git a/NativeScript/NativeScript-Prefix.pch b/NativeScript/NativeScript-Prefix.pch index 6623fa25..b070729c 100644 --- a/NativeScript/NativeScript-Prefix.pch +++ b/NativeScript/NativeScript-Prefix.pch @@ -1,7 +1,7 @@ #ifndef NativeScript_Prefix_pch #define NativeScript_Prefix_pch -#define NATIVESCRIPT_VERSION "8.5.2-alpha.3" +#define NATIVESCRIPT_VERSION "8.7.2" #ifdef DEBUG #define SIZEOF_OFF_T 8 diff --git a/NativeScript/ada/LICENSE-APACHE b/NativeScript/ada/LICENSE-APACHE new file mode 100644 index 00000000..6f231e7c --- /dev/null +++ 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However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "{}" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright 2023 Yagiz Nizipli and Daniel Lemire + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. \ No newline at end of file diff --git a/NativeScript/ada/LICENSE-MIT b/NativeScript/ada/LICENSE-MIT new file mode 100644 index 00000000..ed3bee60 --- /dev/null +++ b/NativeScript/ada/LICENSE-MIT @@ -0,0 +1,18 @@ +Copyright 2023 Yagiz Nizipli and Daniel Lemire + +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of +the Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS +FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR +COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. \ No newline at end of file diff --git a/NativeScript/ada/ada.cpp b/NativeScript/ada/ada.cpp new file mode 100644 index 00000000..449046ff --- /dev/null +++ b/NativeScript/ada/ada.cpp @@ -0,0 +1,15598 @@ +/* auto-generated on 2023-11-19 13:35:02 -0500. Do not edit! */ +/* begin file src/ada.cpp */ +#include "ada.h" +/* begin file src/checkers.cpp */ +#include + +namespace ada::checkers { + +ada_really_inline ada_constexpr bool is_ipv4(std::string_view view) noexcept { + // The string is not empty and does not contain upper case ASCII characters. + // + // Optimization. To be considered as a possible ipv4, the string must end + // with 'x' or a lowercase hex character. + // Most of the time, this will be false so this simple check will save a lot + // of effort. + char last_char = view.back(); + // If the address ends with a dot, we need to prune it (special case). + if (last_char == '.') { + view.remove_suffix(1); + if (view.empty()) { + return false; + } + last_char = view.back(); + } + bool possible_ipv4 = (last_char >= '0' && last_char <= '9') || + (last_char >= 'a' && last_char <= 'f') || + last_char == 'x'; + if (!possible_ipv4) { + return false; + } + // From the last character, find the last dot. + size_t last_dot = view.rfind('.'); + if (last_dot != std::string_view::npos) { + // We have at least one dot. + view = view.substr(last_dot + 1); + } + /** Optimization opportunity: we have basically identified the last number of + the ipv4 if we return true here. We might as well parse it and have at + least one number parsed when we get to parse_ipv4. */ + if (std::all_of(view.begin(), view.end(), ada::checkers::is_digit)) { + return true; + } + // It could be hex (0x), but not if there is a single character. + if (view.size() == 1) { + return false; + } + // It must start with 0x. + if (!std::equal(view.begin(), view.begin() + 2, "0x")) { + return false; + } + // We must allow "0x". + if (view.size() == 2) { + return true; + } + // We have 0x followed by some characters, we need to check that they are + // hexadecimals. + return std::all_of(view.begin() + 2, view.end(), + ada::unicode::is_lowercase_hex); +} + +// for use with path_signature, we include all characters that need percent +// encoding. +static constexpr std::array path_signature_table = + []() constexpr { + std::array result{}; + for (size_t i = 0; i < 256; i++) { + if (i <= 0x20 || i == 0x22 || i == 0x23 || i == 0x3c || i == 0x3e || + i == 0x3f || i == 0x60 || i == 0x7b || i == 0x7b || i == 0x7d || + i > 0x7e) { + result[i] = 1; + } else if (i == 0x25) { + result[i] = 8; + } else if (i == 0x2e) { + result[i] = 4; + } else if (i == 0x5c) { + result[i] = 2; + } else { + result[i] = 0; + } + } + return result; + }(); + +ada_really_inline constexpr uint8_t path_signature( + std::string_view input) noexcept { + // The path percent-encode set is the query percent-encode set and U+003F (?), + // U+0060 (`), U+007B ({), and U+007D (}). The query percent-encode set is the + // C0 control percent-encode set and U+0020 SPACE, U+0022 ("), U+0023 (#), + // U+003C (<), and U+003E (>). The C0 control percent-encode set are the C0 + // controls and all code points greater than U+007E (~). + size_t i = 0; + uint8_t accumulator{}; + for (; i + 7 < input.size(); i += 8) { + accumulator |= uint8_t(path_signature_table[uint8_t(input[i])] | + path_signature_table[uint8_t(input[i + 1])] | + path_signature_table[uint8_t(input[i + 2])] | + path_signature_table[uint8_t(input[i + 3])] | + path_signature_table[uint8_t(input[i + 4])] | + path_signature_table[uint8_t(input[i + 5])] | + path_signature_table[uint8_t(input[i + 6])] | + path_signature_table[uint8_t(input[i + 7])]); + } + for (; i < input.size(); i++) { + accumulator |= uint8_t(path_signature_table[uint8_t(input[i])]); + } + return accumulator; +} + +ada_really_inline constexpr bool verify_dns_length( + std::string_view input) noexcept { + if (input.back() == '.') { + if (input.size() > 254) return false; + } else if (input.size() > 253) + return false; + + size_t start = 0; + while (start < input.size()) { + auto dot_location = input.find('.', start); + // If not found, it's likely the end of the domain + if (dot_location == std::string_view::npos) dot_location = input.size(); + + auto label_size = dot_location - start; + if (label_size > 63 || label_size == 0) return false; + + start = dot_location + 1; + } + + return true; +} +} // namespace ada::checkers +/* end file src/checkers.cpp */ +/* begin file src/unicode.cpp */ + +ADA_PUSH_DISABLE_ALL_WARNINGS +/* begin file src/ada_idna.cpp */ +/* auto-generated on 2023-09-19 15:58:51 -0400. Do not edit! */ +/* begin file src/idna.cpp */ +/* begin file src/unicode_transcoding.cpp */ + +#include +#include +#include + +namespace ada::idna { + +size_t utf8_to_utf32(const char* buf, size_t len, char32_t* utf32_output) { + const uint8_t* data = reinterpret_cast(buf); + size_t pos = 0; + char32_t* start{utf32_output}; + while (pos < len) { + // try to convert the next block of 16 ASCII bytes + if (pos + 16 <= len) { // if it is safe to read 16 more + // bytes, check that they are ascii + uint64_t v1; + std::memcpy(&v1, data + pos, sizeof(uint64_t)); + uint64_t v2; + std::memcpy(&v2, data + pos + sizeof(uint64_t), sizeof(uint64_t)); + uint64_t v{v1 | v2}; + if ((v & 0x8080808080808080) == 0) { + size_t final_pos = pos + 16; + while (pos < final_pos) { + *utf32_output++ = char32_t(buf[pos]); + pos++; + } + continue; + } + } + uint8_t leading_byte = data[pos]; // leading byte + if (leading_byte < 0b10000000) { + // converting one ASCII byte !!! + *utf32_output++ = char32_t(leading_byte); + pos++; + } else if ((leading_byte & 0b11100000) == 0b11000000) { + // We have a two-byte UTF-8 + if (pos + 1 >= len) { + return 0; + } // minimal bound checking + if ((data[pos + 1] & 0b11000000) != 0b10000000) { + return 0; + } + // range check + uint32_t code_point = + (leading_byte & 0b00011111) << 6 | (data[pos + 1] & 0b00111111); + if (code_point < 0x80 || 0x7ff < code_point) { + return 0; + } + *utf32_output++ = char32_t(code_point); + pos += 2; + } else if ((leading_byte & 0b11110000) == 0b11100000) { + // We have a three-byte UTF-8 + if (pos + 2 >= len) { + return 0; + } // minimal bound checking + + if ((data[pos + 1] & 0b11000000) != 0b10000000) { + return 0; + } + if ((data[pos + 2] & 0b11000000) != 0b10000000) { + return 0; + } + // range check + uint32_t code_point = (leading_byte & 0b00001111) << 12 | + (data[pos + 1] & 0b00111111) << 6 | + (data[pos + 2] & 0b00111111); + if (code_point < 0x800 || 0xffff < code_point || + (0xd7ff < code_point && code_point < 0xe000)) { + return 0; + } + *utf32_output++ = char32_t(code_point); + pos += 3; + } else if ((leading_byte & 0b11111000) == 0b11110000) { // 0b11110000 + // we have a 4-byte UTF-8 word. + if (pos + 3 >= len) { + return 0; + } // minimal bound checking + if ((data[pos + 1] & 0b11000000) != 0b10000000) { + return 0; + } + if ((data[pos + 2] & 0b11000000) != 0b10000000) { + return 0; + } + if ((data[pos + 3] & 0b11000000) != 0b10000000) { + return 0; + } + + // range check + uint32_t code_point = (leading_byte & 0b00000111) << 18 | + (data[pos + 1] & 0b00111111) << 12 | + (data[pos + 2] & 0b00111111) << 6 | + (data[pos + 3] & 0b00111111); + if (code_point <= 0xffff || 0x10ffff < code_point) { + return 0; + } + *utf32_output++ = char32_t(code_point); + pos += 4; + } else { + return 0; + } + } + return utf32_output - start; +} + +size_t utf8_length_from_utf32(const char32_t* buf, size_t len) { + // We are not BOM aware. + const uint32_t* p = reinterpret_cast(buf); + size_t counter{0}; + for (size_t i = 0; i != len; ++i) { + ++counter; // ASCII + counter += static_cast(p[i] > 0x7F); // two-byte + counter += static_cast(p[i] > 0x7FF); // three-byte + counter += static_cast(p[i] > 0xFFFF); // four-bytes + } + return counter; +} + +size_t utf32_length_from_utf8(const char* buf, size_t len) { + const int8_t* p = reinterpret_cast(buf); + return std::count_if(p, std::next(p, len), [](int8_t c) { + // -65 is 0b10111111, anything larger in two-complement's + // should start a new code point. + return c > -65; + }); +} + +size_t utf32_to_utf8(const char32_t* buf, size_t len, char* utf8_output) { + const uint32_t* data = reinterpret_cast(buf); + size_t pos = 0; + char* start{utf8_output}; + while (pos < len) { + // try to convert the next block of 2 ASCII characters + if (pos + 2 <= len) { // if it is safe to read 8 more + // bytes, check that they are ascii + uint64_t v; + std::memcpy(&v, data + pos, sizeof(uint64_t)); + if ((v & 0xFFFFFF80FFFFFF80) == 0) { + *utf8_output++ = char(buf[pos]); + *utf8_output++ = char(buf[pos + 1]); + pos += 2; + continue; + } + } + uint32_t word = data[pos]; + if ((word & 0xFFFFFF80) == 0) { + // will generate one UTF-8 bytes + *utf8_output++ = char(word); + pos++; + } else if ((word & 0xFFFFF800) == 0) { + // will generate two UTF-8 bytes + // we have 0b110XXXXX 0b10XXXXXX + *utf8_output++ = char((word >> 6) | 0b11000000); + *utf8_output++ = char((word & 0b111111) | 0b10000000); + pos++; + } else if ((word & 0xFFFF0000) == 0) { + // will generate three UTF-8 bytes + // we have 0b1110XXXX 0b10XXXXXX 0b10XXXXXX + if (word >= 0xD800 && word <= 0xDFFF) { + return 0; + } + *utf8_output++ = char((word >> 12) | 0b11100000); + *utf8_output++ = char(((word >> 6) & 0b111111) | 0b10000000); + *utf8_output++ = char((word & 0b111111) | 0b10000000); + pos++; + } else { + // will generate four UTF-8 bytes + // we have 0b11110XXX 0b10XXXXXX 0b10XXXXXX + // 0b10XXXXXX + if (word > 0x10FFFF) { + return 0; + } + *utf8_output++ = char((word >> 18) | 0b11110000); + *utf8_output++ = char(((word >> 12) & 0b111111) | 0b10000000); + *utf8_output++ = char(((word >> 6) & 0b111111) | 0b10000000); + *utf8_output++ = char((word & 0b111111) | 0b10000000); + pos++; + } + } + return utf8_output - start; +} +} // namespace ada::idna +/* end file src/unicode_transcoding.cpp */ +/* begin file src/mapping.cpp */ + +#include +#include +#include + +/* begin file src/mapping_tables.cpp */ +// IDNA 15.0.0 + +// clang-format off +#ifndef ADA_IDNA_TABLES_H +#define ADA_IDNA_TABLES_H +#include + +namespace ada::idna { + +const uint32_t mappings[5164] = +{ + 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, + 114, 115, 116, 117, 118, 119, 120, 121, 122, 32, 32, 776, 32, 772, 50, 51, 32, 769, + 956, 32, 807, 49, 49, 8260, 52, 49, 8260, 50, 51, 8260, 52, 224, 225, 226, 227, + 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, + 244, 245, 246, 248, 249, 250, 251, 252, 253, 254, 257, 259, 261, 263, 265, 267, + 269, 271, 273, 275, 277, 279, 281, 283, 285, 287, 289, 291, 293, 295, 297, 299, + 301, 303, 105, 775, 309, 311, 314, 316, 318, 108, 183, 322, 324, 326, 328, 700, + 110, 331, 333, 335, 337, 339, 341, 343, 345, 347, 349, 351, 353, 355, 357, 359, + 361, 363, 365, 367, 369, 371, 373, 375, 255, 378, 380, 382, 595, 387, 389, 596, + 392, 598, 599, 396, 477, 601, 603, 402, 608, 611, 617, 616, 409, 623, 626, 629, + 417, 419, 421, 640, 424, 643, 429, 648, 432, 650, 651, 436, 438, 658, 441, 445, + 100, 382, 108, 106, 110, 106, 462, 464, 466, 468, 470, 472, 474, 476, 479, 481, + 483, 485, 487, 489, 491, 493, 495, 100, 122, 501, 405, 447, 505, 507, 509, 511, + 513, 515, 517, 519, 521, 523, 525, 527, 529, 531, 533, 535, 537, 539, 541, 543, + 414, 547, 549, 551, 553, 555, 557, 559, 561, 563, 11365, 572, 410, 11366, 578, 384, + 649, 652, 583, 585, 587, 589, 591, 614, 633, 635, 641, 32, 774, 32, 775, 32, 778, + 32, 808, 32, 771, 32, 779, 661, 768, 787, 776, 769, 953, 881, 883, 697, 887, 32, + 953, 59, 1011, 32, 776, 769, 940, 941, 942, 943, 972, 973, 974, 945, 946, 947, 948, + 949, 950, 951, 952, 954, 955, 957, 958, 959, 960, 961, 963, 964, 965, 966, 967, + 968, 969, 970, 971, 983, 985, 987, 989, 991, 993, 995, 997, 999, 1001, 1003, 1005, + 1007, 1016, 1019, 891, 892, 893, 1104, 1105, 1106, 1107, 1108, 1109, 1110, 1111, + 1112, 1113, 1114, 1115, 1116, 1117, 1118, 1119, 1072, 1073, 1074, 1075, 1076, 1077, + 1078, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087, 1088, 1089, 1090, 1091, + 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100, 1101, 1102, 1103, 1121, 1123, + 1125, 1127, 1129, 1131, 1133, 1135, 1137, 1139, 1141, 1143, 1145, 1147, 1149, 1151, + 1153, 1163, 1165, 1167, 1169, 1171, 1173, 1175, 1177, 1179, 1181, 1183, 1185, 1187, + 1189, 1191, 1193, 1195, 1197, 1199, 1201, 1203, 1205, 1207, 1209, 1211, 1213, 1215, + 1218, 1220, 1222, 1224, 1226, 1228, 1230, 1233, 1235, 1237, 1239, 1241, 1243, 1245, + 1247, 1249, 1251, 1253, 1255, 1257, 1259, 1261, 1263, 1265, 1267, 1269, 1271, 1273, + 1275, 1277, 1279, 1281, 1283, 1285, 1287, 1289, 1291, 1293, 1295, 1297, 1299, 1301, + 1303, 1305, 1307, 1309, 1311, 1313, 1315, 1317, 1319, 1321, 1323, 1325, 1327, 1377, + 1378, 1379, 1380, 1381, 1382, 1383, 1384, 1385, 1386, 1387, 1388, 1389, 1390, 1391, + 1392, 1393, 1394, 1395, 1396, 1397, 1398, 1399, 1400, 1401, 1402, 1403, 1404, 1405, + 1406, 1407, 1408, 1409, 1410, 1411, 1412, 1413, 1414, 1381, 1410, 1575, 1652, 1608, + 1652, 1735, 1652, 1610, 1652, 2325, 2364, 2326, 2364, 2327, 2364, 2332, 2364, 2337, + 2364, 2338, 2364, 2347, 2364, 2351, 2364, 2465, 2492, 2466, 2492, 2479, 2492, 2610, + 2620, 2616, 2620, 2582, 2620, 2583, 2620, 2588, 2620, 2603, 2620, 2849, 2876, 2850, + 2876, 3661, 3634, 3789, 3762, 3755, 3737, 3755, 3745, 3851, 3906, 4023, 3916, 4023, + 3921, 4023, 3926, 4023, 3931, 4023, 3904, 4021, 3953, 3954, 3953, 3956, 4018, 3968, + 4018, 3953, 3968, 4019, 3968, 4019, 3953, 3968, 3986, 4023, 3996, 4023, 4001, 4023, + 4006, 4023, 4011, 4023, 3984, 4021, 11559, 11565, 4316, 5104, 5105, 5106, 5107, + 5108, 5109, 42571, 4304, 4305, 4306, 4307, 4308, 4309, 4310, 4311, 4312, 4313, 4314, + 4315, 4317, 4318, 4319, 4320, 4321, 4322, 4323, 4324, 4325, 4326, 4327, 4328, 4329, + 4330, 4331, 4332, 4333, 4334, 4335, 4336, 4337, 4338, 4339, 4340, 4341, 4342, 4343, + 4344, 4345, 4346, 4349, 4350, 4351, 592, 593, 7426, 604, 7446, 7447, 7453, 7461, + 594, 597, 607, 609, 613, 618, 7547, 669, 621, 7557, 671, 625, 624, 627, 628, 632, + 642, 427, 7452, 656, 657, 7681, 7683, 7685, 7687, 7689, 7691, 7693, 7695, 7697, + 7699, 7701, 7703, 7705, 7707, 7709, 7711, 7713, 7715, 7717, 7719, 7721, 7723, 7725, + 7727, 7729, 7731, 7733, 7735, 7737, 7739, 7741, 7743, 7745, 7747, 7749, 7751, 7753, + 7755, 7757, 7759, 7761, 7763, 7765, 7767, 7769, 7771, 7773, 7775, 7777, 7779, 7781, + 7783, 7785, 7787, 7789, 7791, 7793, 7795, 7797, 7799, 7801, 7803, 7805, 7807, 7809, + 7811, 7813, 7815, 7817, 7819, 7821, 7823, 7825, 7827, 7829, 97, 702, 115, 115, 7841, + 7843, 7845, 7847, 7849, 7851, 7853, 7855, 7857, 7859, 7861, 7863, 7865, 7867, 7869, + 7871, 7873, 7875, 7877, 7879, 7881, 7883, 7885, 7887, 7889, 7891, 7893, 7895, 7897, + 7899, 7901, 7903, 7905, 7907, 7909, 7911, 7913, 7915, 7917, 7919, 7921, 7923, 7925, + 7927, 7929, 7931, 7933, 7935, 7936, 7937, 7938, 7939, 7940, 7941, 7942, 7943, 7952, + 7953, 7954, 7955, 7956, 7957, 7968, 7969, 7970, 7971, 7972, 7973, 7974, 7975, 7984, + 7985, 7986, 7987, 7988, 7989, 7990, 7991, 8000, 8001, 8002, 8003, 8004, 8005, 8017, + 8019, 8021, 8023, 8032, 8033, 8034, 8035, 8036, 8037, 8038, 8039, 7936, 953, 7937, + 953, 7938, 953, 7939, 953, 7940, 953, 7941, 953, 7942, 953, 7943, 953, 7968, 953, + 7969, 953, 7970, 953, 7971, 953, 7972, 953, 7973, 953, 7974, 953, 7975, 953, 8032, + 953, 8033, 953, 8034, 953, 8035, 953, 8036, 953, 8037, 953, 8038, 953, 8039, 953, + 8048, 953, 945, 953, 940, 953, 8118, 953, 8112, 8113, 32, 787, 32, 834, 32, 776, + 834, 8052, 953, 951, 953, 942, 953, 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1613, 1617, 32, 1614, 1617, 32, 1615, 1617, 32, 1616, 1617, 32, 1617, + 1648, 1574, 1585, 1574, 1586, 1574, 1606, 1576, 1585, 1576, 1586, 1576, 1606, 1578, + 1585, 1578, 1586, 1578, 1606, 1579, 1585, 1579, 1586, 1579, 1606, 1605, 1575, 1606, + 1585, 1606, 1586, 1606, 1606, 1610, 1585, 1610, 1586, 1574, 1582, 1574, 1607, 1576, + 1607, 1578, 1607, 1589, 1582, 1604, 1607, 1606, 1607, 1607, 1648, 1579, 1607, 1587, + 1607, 1588, 1605, 1588, 1607, 1600, 1614, 1617, 1600, 1615, 1617, 1600, 1616, 1617, + 1591, 1609, 1591, 1610, 1593, 1609, 1593, 1610, 1594, 1609, 1594, 1610, 1587, 1609, + 1587, 1610, 1588, 1609, 1588, 1610, 1581, 1609, 1580, 1609, 1580, 1610, 1582, 1609, + 1589, 1609, 1589, 1610, 1590, 1609, 1590, 1610, 1588, 1580, 1588, 1581, 1588, 1582, + 1588, 1585, 1587, 1585, 1589, 1585, 1590, 1585, 1575, 1611, 1578, 1580, 1605, 1578, + 1581, 1580, 1578, 1581, 1605, 1578, 1582, 1605, 1578, 1605, 1580, 1578, 1605, 1581, + 1578, 1605, 1582, 1581, 1605, 1610, 1581, 1605, 1609, 1587, 1581, 1580, 1587, 1580, + 1581, 1587, 1580, 1609, 1587, 1605, 1581, 1587, 1605, 1580, 1587, 1605, 1605, 1589, + 1581, 1581, 1589, 1605, 1605, 1588, 1581, 1605, 1588, 1580, 1610, 1588, 1605, 1582, + 1588, 1605, 1605, 1590, 1581, 1609, 1590, 1582, 1605, 1591, 1605, 1581, 1591, 1605, + 1605, 1591, 1605, 1610, 1593, 1580, 1605, 1593, 1605, 1605, 1593, 1605, 1609, 1594, + 1605, 1605, 1594, 1605, 1610, 1594, 1605, 1609, 1601, 1582, 1605, 1602, 1605, 1581, + 1602, 1605, 1605, 1604, 1581, 1605, 1604, 1581, 1610, 1604, 1581, 1609, 1604, 1580, + 1580, 1604, 1582, 1605, 1604, 1605, 1581, 1605, 1581, 1580, 1605, 1581, 1610, 1605, + 1580, 1581, 1605, 1582, 1605, 1605, 1580, 1582, 1607, 1605, 1580, 1607, 1605, 1605, + 1606, 1581, 1605, 1606, 1581, 1609, 1606, 1580, 1605, 1606, 1580, 1609, 1606, 1605, + 1610, 1606, 1605, 1609, 1610, 1605, 1605, 1576, 1582, 1610, 1578, 1580, 1610, 1578, + 1580, 1609, 1578, 1582, 1610, 1578, 1582, 1609, 1578, 1605, 1610, 1578, 1605, 1609, + 1580, 1605, 1610, 1580, 1581, 1609, 1580, 1605, 1609, 1587, 1582, 1609, 1589, 1581, + 1610, 1588, 1581, 1610, 1590, 1581, 1610, 1604, 1580, 1610, 1604, 1605, 1610, 1610, + 1580, 1610, 1610, 1605, 1610, 1605, 1605, 1610, 1602, 1605, 1610, 1606, 1581, 1610, + 1593, 1605, 1610, 1603, 1605, 1610, 1606, 1580, 1581, 1605, 1582, 1610, 1604, 1580, + 1605, 1603, 1605, 1605, 1580, 1581, 1610, 1581, 1580, 1610, 1605, 1580, 1610, 1601, + 1605, 1610, 1576, 1581, 1610, 1587, 1582, 1610, 1606, 1580, 1610, 1589, 1604, 1746, + 1602, 1604, 1746, 1575, 1604, 1604, 1607, 1575, 1603, 1576, 1585, 1605, 1581, 1605, + 1583, 1589, 1604, 1593, 1605, 1585, 1587, 1608, 1604, 1593, 1604, 1610, 1607, 1608, + 1587, 1604, 1605, 1589, 1604, 1609, 1589, 1604, 1609, 32, 1575, 1604, 1604, 1607, + 32, 1593, 1604, 1610, 1607, 32, 1608, 1587, 1604, 1605, 1580, 1604, 32, 1580, 1604, + 1575, 1604, 1607, 1585, 1740, 1575, 1604, 44, 12289, 12310, 12311, 8212, 8211, 95, + 123, 125, 12308, 12309, 12304, 12305, 12298, 12299, 12300, 12301, 12302, 12303, + 91, 93, 35, 38, 42, 45, 60, 62, 92, 36, 37, 64, 32, 1611, 1600, 1611, 1600, 1617, + 32, 1618, 1600, 1618, 1569, 1570, 1571, 1572, 1573, 1577, 1604, 1570, 1604, 1571, + 1604, 1573, 34, 39, 94, 124, 126, 10629, 10630, 12539, 12453, 12515, 162, 163, 172, + 166, 165, 8361, 9474, 8592, 8593, 8594, 8595, 9632, 9675, 66600, 66601, 66602, 66603, + 66604, 66605, 66606, 66607, 66608, 66609, 66610, 66611, 66612, 66613, 66614, 66615, + 66616, 66617, 66618, 66619, 66620, 66621, 66622, 66623, 66624, 66625, 66626, 66627, + 66628, 66629, 66630, 66631, 66632, 66633, 66634, 66635, 66636, 66637, 66638, 66639, + 66776, 66777, 66778, 66779, 66780, 66781, 66782, 66783, 66784, 66785, 66786, 66787, + 66788, 66789, 66790, 66791, 66792, 66793, 66794, 66795, 66796, 66797, 66798, 66799, + 66800, 66801, 66802, 66803, 66804, 66805, 66806, 66807, 66808, 66809, 66810, 66811, + 66967, 66968, 66969, 66970, 66971, 66972, 66973, 66974, 66975, 66976, 66977, 66979, + 66980, 66981, 66982, 66983, 66984, 66985, 66986, 66987, 66988, 66989, 66990, 66991, + 66992, 66993, 66995, 66996, 66997, 66998, 66999, 67000, 67001, 67003, 67004, 720, + 721, 665, 675, 43878, 677, 676, 7569, 600, 606, 681, 612, 610, 667, 668, 615, 644, + 682, 683, 122628, 42894, 622, 122629, 654, 122630, 630, 631, 634, 122632, 638, 680, + 678, 43879, 679, 11377, 655, 673, 674, 664, 448, 449, 450, 122634, 122654, 68800, + 68801, 68802, 68803, 68804, 68805, 68806, 68807, 68808, 68809, 68810, 68811, 68812, + 68813, 68814, 68815, 68816, 68817, 68818, 68819, 68820, 68821, 68822, 68823, 68824, + 68825, 68826, 68827, 68828, 68829, 68830, 68831, 68832, 68833, 68834, 68835, 68836, + 68837, 68838, 68839, 68840, 68841, 68842, 68843, 68844, 68845, 68846, 68847, 68848, + 68849, 68850, 71872, 71873, 71874, 71875, 71876, 71877, 71878, 71879, 71880, 71881, + 71882, 71883, 71884, 71885, 71886, 71887, 71888, 71889, 71890, 71891, 71892, 71893, + 71894, 71895, 71896, 71897, 71898, 71899, 71900, 71901, 71902, 71903, 93792, 93793, + 93794, 93795, 93796, 93797, 93798, 93799, 93800, 93801, 93802, 93803, 93804, 93805, + 93806, 93807, 93808, 93809, 93810, 93811, 93812, 93813, 93814, 93815, 93816, 93817, + 93818, 93819, 93820, 93821, 93822, 93823, 119127, 119141, 119128, 119141, 119128, + 119141, 119150, 119128, 119141, 119151, 119128, 119141, 119152, 119128, 119141, + 119153, 119128, 119141, 119154, 119225, 119141, 119226, 119141, 119225, 119141, + 119150, 119226, 119141, 119150, 119225, 119141, 119151, 119226, 119141, 119151, + 305, 567, 8711, 8706, 1231, 125218, 125219, 125220, 125221, 125222, 125223, 125224, + 125225, 125226, 125227, 125228, 125229, 125230, 125231, 125232, 125233, 125234, + 125235, 125236, 125237, 125238, 125239, 125240, 125241, 125242, 125243, 125244, + 125245, 125246, 125247, 125248, 125249, 125250, 125251, 1646, 1697, 1647, 48, 44, + 49, 44, 50, 44, 51, 44, 52, 44, 53, 44, 54, 44, 55, 44, 56, 44, 57, 44, 12308, 115, + 12309, 119, 122, 104, 118, 115, 100, 112, 112, 118, 119, 99, 109, 114, 100, 106, + 12411, 12363, 12467, 12467, 23383, 21452, 22810, 35299, 20132, 26144, 28961, 21069, + 24460, 20877, 26032, 21021, 32066, 36009, 22768, 21561, 28436, 25237, 25429, 36938, + 25351, 25171, 31105, 31354, 21512, 28288, 30003, 21106, 21942, 37197, 12308, 26412, + 12309, 12308, 19977, 12309, 12308, 20108, 12309, 12308, 23433, 12309, 12308, 28857, + 12309, 12308, 25171, 12309, 12308, 30423, 12309, 12308, 21213, 12309, 12308, 25943, + 12309, 24471, 21487, 20029, 20024, 20033, 131362, 20320, 20411, 20482, 20602, 20633, + 20687, 13470, 132666, 20820, 20836, 20855, 132380, 13497, 20839, 132427, 20887, + 20900, 20172, 20908, 168415, 20995, 13535, 21051, 21062, 21111, 13589, 21253, 21254, + 21321, 21338, 21363, 21373, 21375, 133676, 28784, 21450, 21471, 133987, 21483, 21489, + 21510, 21662, 21560, 21576, 21608, 21666, 21750, 21776, 21843, 21859, 21892, 21931, + 21939, 21954, 22294, 22295, 22097, 22132, 22766, 22478, 22516, 22541, 22411, 22578, + 22577, 22700, 136420, 22770, 22775, 22790, 22818, 22882, 136872, 136938, 23020, + 23067, 23079, 23000, 23142, 14062, 23304, 23358, 137672, 23491, 23512, 23539, 138008, + 23551, 23558, 14209, 23648, 23744, 23693, 138724, 23875, 138726, 23918, 23915, 23932, + 24033, 24034, 14383, 24061, 24104, 24125, 24169, 14434, 139651, 14460, 24240, 24243, + 24246, 172946, 140081, 33281, 24354, 14535, 144056, 156122, 24418, 24427, 14563, + 24474, 24525, 24535, 24569, 24705, 14650, 14620, 141012, 24775, 24904, 24908, 24954, + 25010, 24996, 25007, 25054, 25115, 25181, 25265, 25300, 25424, 142092, 25405, 25340, + 25448, 25475, 25572, 142321, 25634, 25541, 25513, 14894, 25705, 25726, 25757, 25719, + 14956, 25964, 143370, 26083, 26360, 26185, 15129, 15112, 15076, 20882, 20885, 26368, + 26268, 32941, 17369, 26401, 26462, 26451, 144323, 15177, 26618, 26501, 26706, 144493, + 26766, 26655, 26900, 26946, 27043, 27114, 27304, 145059, 27355, 15384, 27425, 145575, + 27476, 15438, 27506, 27551, 27579, 146061, 138507, 146170, 27726, 146620, 27839, + 27853, 27751, 27926, 27966, 28009, 28024, 28037, 146718, 27956, 28207, 28270, 15667, + 28359, 147153, 28153, 28526, 147294, 147342, 28614, 28729, 28699, 15766, 28746, + 28797, 28791, 28845, 132389, 28997, 148067, 29084, 29224, 29264, 149000, 29312, + 29333, 149301, 149524, 29562, 29579, 16044, 29605, 16056, 29767, 29788, 29829, 29898, + 16155, 29988, 150582, 30014, 150674, 139679, 30224, 151457, 151480, 151620, 16380, + 16392, 151795, 151794, 151833, 151859, 30494, 30495, 30603, 16454, 16534, 152605, + 30798, 16611, 153126, 153242, 153285, 31211, 16687, 31306, 31311, 153980, 154279, + 16898, 154539, 31686, 31689, 16935, 154752, 31954, 17056, 31976, 31971, 32000, 155526, + 32099, 17153, 32199, 32258, 32325, 17204, 156200, 156231, 17241, 156377, 32634, + 156478, 32661, 32762, 156890, 156963, 32864, 157096, 32880, 144223, 17365, 32946, + 33027, 17419, 33086, 23221, 157607, 157621, 144275, 144284, 33284, 36766, 17515, + 33425, 33419, 33437, 21171, 33457, 33459, 33469, 33510, 158524, 33565, 33635, 33709, + 33571, 33725, 33767, 33619, 33738, 33740, 33756, 158774, 159083, 158933, 17707, + 34033, 34035, 34070, 160714, 34148, 159532, 17757, 17761, 159665, 159954, 17771, + 34384, 34407, 34409, 34473, 34440, 34574, 34530, 34600, 34667, 34694, 34785, 34817, + 17913, 34912, 161383, 35031, 35038, 17973, 35066, 13499, 161966, 162150, 18110, + 18119, 35488, 162984, 36011, 36033, 36123, 36215, 163631, 133124, 36299, 36284, + 36336, 133342, 36564, 165330, 165357, 37012, 37105, 37137, 165678, 37147, 37432, + 37591, 37592, 37500, 37881, 37909, 166906, 38283, 18837, 38327, 167287, 18918, 38595, + 23986, 38691, 168261, 168474, 19054, 19062, 38880, 168970, 19122, 169110, 38953, + 169398, 39138, 19251, 39209, 39335, 39362, 39422, 19406, 170800, 40000, 40189, 19662, + 19693, 40295, 172238, 19704, 172293, 172558, 172689, 19798, 40702, 40709, 40719, + 40726, 173568, + +}; +const uint32_t table[8000][2] = +{ + {0, 1}, {65, 16777219}, {66, 16777475}, {67, 16777731}, + {68, 16777987}, {69, 16778243}, {70, 16778499}, {71, 16778755}, + {72, 16779011}, {73, 16779267}, {74, 16779523}, {75, 16779779}, + {76, 16780035}, {77, 16780291}, {78, 16780547}, {79, 16780803}, + {80, 16781059}, {81, 16781315}, {82, 16781571}, {83, 16781827}, + {84, 16782083}, {85, 16782339}, {86, 16782595}, {87, 16782851}, + {88, 16783107}, {89, 16783363}, {90, 16783619}, {91, 1}, + {128, 2}, {160, 16783875}, {161, 1}, {168, 33561347}, + {169, 1}, {170, 16777219}, {171, 1}, {173, 0}, + {174, 1}, {175, 33561859}, {176, 1}, {178, 16785155}, + {179, 16785411}, {180, 33562883}, {181, 16786179}, {182, 1}, + {184, 33563651}, {185, 16786947}, {186, 16780803}, {187, 1}, + {188, 50341635}, {189, 50342403}, {190, 50343171}, {191, 1}, + {192, 16789507}, {193, 16789763}, {194, 16790019}, {195, 16790275}, + {196, 16790531}, {197, 16790787}, {198, 16791043}, {199, 16791299}, + {200, 16791555}, {201, 16791811}, {202, 16792067}, {203, 16792323}, + {204, 16792579}, {205, 16792835}, {206, 16793091}, {207, 16793347}, + {208, 16793603}, {209, 16793859}, {210, 16794115}, {211, 16794371}, + {212, 16794627}, {213, 16794883}, {214, 16795139}, {215, 1}, + {216, 16795395}, {217, 16795651}, {218, 16795907}, {219, 16796163}, + {220, 16796419}, {221, 16796675}, {222, 16796931}, {223, 1}, + {256, 16797187}, {257, 1}, {258, 16797443}, {259, 1}, + {260, 16797699}, {261, 1}, {262, 16797955}, {263, 1}, + {264, 16798211}, {265, 1}, {266, 16798467}, {267, 1}, + {268, 16798723}, {269, 1}, {270, 16798979}, {271, 1}, + {272, 16799235}, {273, 1}, {274, 16799491}, {275, 1}, + {276, 16799747}, {277, 1}, {278, 16800003}, {279, 1}, + {280, 16800259}, {281, 1}, {282, 16800515}, {283, 1}, + {284, 16800771}, {285, 1}, {286, 16801027}, {287, 1}, + {288, 16801283}, {289, 1}, {290, 16801539}, {291, 1}, + {292, 16801795}, {293, 1}, {294, 16802051}, {295, 1}, + {296, 16802307}, {297, 1}, {298, 16802563}, {299, 1}, + {300, 16802819}, {301, 1}, {302, 16803075}, {303, 1}, + {304, 33580547}, {305, 1}, {306, 33556483}, {308, 16803843}, + {309, 1}, {310, 16804099}, {311, 1}, {313, 16804355}, + {314, 1}, {315, 16804611}, {316, 1}, {317, 16804867}, + {318, 1}, {319, 33582339}, {321, 16805635}, {322, 1}, + {323, 16805891}, {324, 1}, {325, 16806147}, {326, 1}, + {327, 16806403}, {328, 1}, {329, 33583875}, {330, 16807171}, + {331, 1}, {332, 16807427}, {333, 1}, {334, 16807683}, + {335, 1}, {336, 16807939}, {337, 1}, {338, 16808195}, + {339, 1}, {340, 16808451}, {341, 1}, {342, 16808707}, + {343, 1}, {344, 16808963}, {345, 1}, {346, 16809219}, + {347, 1}, {348, 16809475}, {349, 1}, {350, 16809731}, + {351, 1}, {352, 16809987}, {353, 1}, {354, 16810243}, + {355, 1}, {356, 16810499}, {357, 1}, {358, 16810755}, + {359, 1}, {360, 16811011}, {361, 1}, {362, 16811267}, + {363, 1}, {364, 16811523}, {365, 1}, {366, 16811779}, + {367, 1}, {368, 16812035}, {369, 1}, {370, 16812291}, + {371, 1}, {372, 16812547}, {373, 1}, {374, 16812803}, + {375, 1}, {376, 16813059}, {377, 16813315}, {378, 1}, + {379, 16813571}, {380, 1}, {381, 16813827}, {382, 1}, + {383, 16781827}, 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{195077, 18093827}, {195078, 18094083}, {195079, 18094339}, {195080, 18094595}, + {195081, 18094851}, {195082, 17639939}, {195083, 18095107}, {195084, 18095363}, + {195085, 18095619}, {195086, 18095875}, {195087, 18096131}, {195088, 18096387}, + {195089, 18096643}, {195090, 18096899}, {195091, 18097155}, {195092, 18097411}, + {195093, 17192707}, {195094, 18097667}, {195095, 17193731}, {195096, 18097923}, + {195097, 18098179}, {195098, 18098435}, {195099, 18098691}, {195100, 17195011}, + {195101, 18098947}, {195102, 2}, {196608, 1}, {201547, 2}, + {201552, 1}, {205744, 2}, {917760, 0}, {918000, 2} +}; + + +} // namespace ada::idna +#endif // ADA_IDNA_TABLES_H + +/* end file src/mapping_tables.cpp */ + +namespace ada::idna { + +// This can be greatly accelerated. For now we just use a simply +// binary search. In practice, you should *not* do that. +uint32_t find_range_index(uint32_t key) { + //////////////// + // This could be implemented with std::lower_bound, but we roll our own + // because we want to allow further optimizations in the future. + //////////////// + uint32_t len = std::size(table); + uint32_t low = 0; + uint32_t high = len - 1; + while (low <= high) { + uint32_t middle_index = (low + high) >> 1; // cannot overflow + uint32_t middle_value = table[middle_index][0]; + if (middle_value < key) { + low = middle_index + 1; + } else if (middle_value > key) { + high = middle_index - 1; + } else { + return middle_index; // perfect match + } + } + return low == 0 ? 0 : low - 1; +} + +bool ascii_has_upper_case(char* input, size_t length) { + auto broadcast = [](uint8_t v) -> uint64_t { + return 0x101010101010101ull * v; + }; + uint64_t broadcast_80 = broadcast(0x80); + uint64_t broadcast_Ap = broadcast(128 - 'A'); + uint64_t broadcast_Zp = broadcast(128 - 'Z' - 1); + size_t i = 0; + + uint64_t runner{0}; + + for (; i + 7 < length; i += 8) { + uint64_t word{}; + memcpy(&word, input + i, sizeof(word)); + runner |= (((word + broadcast_Ap) ^ (word + broadcast_Zp)) & broadcast_80); + } + if (i < length) { + uint64_t word{}; + memcpy(&word, input + i, length - i); + runner |= (((word + broadcast_Ap) ^ (word + broadcast_Zp)) & broadcast_80); + } + return runner != 0; +} + +void ascii_map(char* input, size_t length) { + auto broadcast = [](uint8_t v) -> uint64_t { + return 0x101010101010101ull * v; + }; + uint64_t broadcast_80 = broadcast(0x80); + uint64_t broadcast_Ap = broadcast(128 - 'A'); + uint64_t broadcast_Zp = broadcast(128 - 'Z' - 1); + size_t i = 0; + + for (; i + 7 < length; i += 8) { + uint64_t word{}; + memcpy(&word, input + i, sizeof(word)); + word ^= + (((word + broadcast_Ap) ^ (word + broadcast_Zp)) & broadcast_80) >> 2; + memcpy(input + i, &word, sizeof(word)); + } + if (i < length) { + uint64_t word{}; + memcpy(&word, input + i, length - i); + word ^= + (((word + broadcast_Ap) ^ (word + broadcast_Zp)) & broadcast_80) >> 2; + memcpy(input + i, &word, length - i); + } +} + +// Map the characters according to IDNA, returning the empty string on error. +std::u32string map(std::u32string_view input) { + // [Map](https://www.unicode.org/reports/tr46/#ProcessingStepMap). + // For each code point in the domain_name string, look up the status + // value in Section 5, [IDNA Mapping + // Table](https://www.unicode.org/reports/tr46/#IDNA_Mapping_Table), + // and take the following actions: + // * disallowed: Leave the code point unchanged in the string, and + // record that there was an error. + // * ignored: Remove the code point from the string. This is + // equivalent to mapping the code point to an empty string. + // * mapped: Replace the code point in the string by the value for + // the mapping in Section 5, [IDNA Mapping + // Table](https://www.unicode.org/reports/tr46/#IDNA_Mapping_Table). + // * valid: Leave the code point unchanged in the string. + static std::u32string error = U""; + std::u32string answer; + answer.reserve(input.size()); + for (char32_t x : input) { + size_t index = find_range_index(x); + uint32_t descriptor = table[index][1]; + uint8_t code = uint8_t(descriptor); + switch (code) { + case 0: + break; // nothing to do, ignored + case 1: + answer.push_back(x); // valid, we just copy it to output + break; + case 2: + return error; // disallowed + // case 3 : + default: + // We have a mapping + { + size_t char_count = (descriptor >> 24); + uint16_t char_index = uint16_t(descriptor >> 8); + for (size_t idx = char_index; idx < char_index + char_count; idx++) { + answer.push_back(mappings[idx]); + } + } + } + } + return answer; +} +} // namespace ada::idna +/* end file src/mapping.cpp */ +/* begin file src/normalization.cpp */ +/* begin file src/normalization_tables.cpp */ +// IDNA 15.0.0 + +// clang-format off +#ifndef ADA_IDNA_NORMALIZATION_TABLES_H +#define ADA_IDNA_NORMALIZATION_TABLES_H +#include + +/** + * Unicode Standard Annex #15 + * + * UNICODE NORMALIZATION FORMS + * https://www.unicode.org/reports/tr15/ + * + * See https://github.com/uni-algo/uni-algo/blob/c612968c5ed3ace39bde4c894c24286c5f2c7fe2/include/uni_algo/impl/data/data_norm.h for reference. + */ + +namespace ada::idna { + +const uint8_t decomposition_index[4352] = { + 0, 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 15, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 16, 7, 17, 18, 19, 20, 21, 22, 23, 24, 7, + 7, 7, 7, 7, 25, 7, 26, 27, 28, 29, 30, 31, 32, 33, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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36408, 36408, 36408, + 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, + 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, + 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, + 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, + 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, + 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, 36408, + 36408, 36408, 36408, 36408, 36408, 36408, 36408}}; +const char32_t decomposition_data[9102] = { + 0, 32, 32, 776, 97, 32, 772, 50, 51, + 32, 769, 956, 32, 807, 49, 111, 49, 8260, + 52, 49, 8260, 50, 51, 8260, 52, 65, 768, + 65, 769, 65, 770, 65, 771, 65, 776, 65, + 778, 67, 807, 69, 768, 69, 769, 69, 770, + 69, 776, 73, 768, 73, 769, 73, 770, 73, + 776, 78, 771, 79, 768, 79, 769, 79, 770, + 79, 771, 79, 776, 85, 768, 85, 769, 85, + 770, 85, 776, 89, 769, 97, 768, 97, 769, + 97, 770, 97, 771, 97, 776, 97, 778, 99, + 807, 101, 768, 101, 769, 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157607, 157621, 144275, 144284, + 33281, 33284, 36766, 17515, 33425, 33419, 33437, 21171, 33457, + 33459, 33469, 33510, 158524, 33509, 33565, 33635, 33709, 33571, + 33725, 33767, 33879, 33619, 33738, 33740, 33756, 158774, 159083, + 158933, 17707, 34033, 34035, 34070, 160714, 34148, 159532, 17757, + 17761, 159665, 159954, 17771, 34384, 34396, 34407, 34409, 34473, + 34440, 34574, 34530, 34681, 34600, 34667, 34694, 17879, 34785, + 34817, 17913, 34912, 34915, 161383, 35031, 35038, 17973, 35066, + 13499, 161966, 162150, 18110, 18119, 35488, 35565, 35722, 35925, + 162984, 36011, 36033, 36123, 36215, 163631, 133124, 36299, 36284, + 36336, 133342, 36564, 36664, 165330, 165357, 37012, 37105, 37137, + 165678, 37147, 37432, 37591, 37592, 37500, 37881, 37909, 166906, + 38283, 18837, 38327, 167287, 18918, 38595, 23986, 38691, 168261, + 168474, 19054, 19062, 38880, 168970, 19122, 169110, 38923, 38923, + 38953, 169398, 39138, 19251, 39209, 39335, 39362, 39422, 19406, + 170800, 39698, 40000, 40189, 19662, 19693, 40295, 172238, 19704, + 172293, 172558, 172689, 40635, 19798, 40697, 40702, 40709, 40719, + 40726, 40763, 173568}; + +const uint8_t canonical_combining_class_index[4352] = { + 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0, 0, + 15, 0, 0, 0, 16, 17, 18, 19, 20, 21, 22, 0, 0, 23, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 24, 25, 0, 0, 26, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 27, 0, 28, 29, 30, + 31, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 32, 0, 0, 33, 0, 0, 34, 35, 36, 0, 0, 0, 0, 0, 0, + 37, 0, 0, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 0, 52, + 53, 0, 54, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 55, 56, 0, 0, 0, 57, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 58, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 59, 60, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 61, 56, 62, 0, 63, 0, 0, 0, 64, 65, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 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230, 220, 220, 0, 230, 230, 230, 220, 220, 220, 220, 230, 232, 220, + 220, 230, 233, 234, 234, 233, 234, 234, 233, 230, 230, 230, 230, 230, 230, + 230, 230, 230, 230, 230, 230, 230, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 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220, 220, 220, 230, 230, 220, 230, 230, 222, 228, 230, 10, 11, 12, 13, + 14, 15, 16, 17, 18, 19, 19, 20, 21, 22, 0, 23, 0, 24, 25, + 0, 230, 220, 0, 18, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 230, 230, 230, 230, 230, 230, 230, 230, 30, 31, 32, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 27, 28, 29, 30, 31, 32, 33, 34, 230, 230, 220, 220, 230, 230, 230, + 230, 230, 220, 230, 230, 220, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 35, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 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0, 0, 0, 0, 0, 0, 0, 230, 230, 230, 230, 230, + 230, 230, 220, 230, 0, 0, 0, 0, 0, 0, 0, 0, 0, 220, 0, + 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 230, 230, 230, 230, 0, 230, 230, 230, + 230, 230, 230, 230, 230, 230, 0, 230, 230, 230, 0, 230, 230, 230, 230, + 230, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 220, + 220, 220, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 230, 220, 220, 220, 230, 230, 230, 230, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 230, 230, 230, 230, 230, 220, 220, 220, + 220, 220, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, + 230, 0, 220, 230, 230, 220, 230, 230, 220, 230, 230, 230, 220, 220, 220, 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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 216, 216, 1, 1, 1, 0, 0, 0, 226, 216, 216, + 216, 216, 216, 0, 0, 0, 0, 0, 0, 0, 0, 220, 220, 220, 220, 220, + 220, 220, 220, 0, 0, 230, 230, 230, 230, 230, 220, 220, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 230, 230, 230, 230, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 230, 230, 230, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {230, 230, 230, 230, 230, 230, 230, 0, 230, 230, 230, 230, 230, 230, 230, + 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 0, 0, 230, 230, 230, + 230, 230, 230, 230, 0, 230, 230, 0, 230, 230, 230, 230, 230, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 230, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 230, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 230, 230, 230, 230, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 232, 232, 220, 230, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 220, 220, 220, 220, 220, 220, 220, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 230, 230, 230, 230, 230, 230, 7, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}; + +const uint8_t composition_index[4352] = { + 0, 1, 2, 3, 4, 5, 6, 5, 5, 7, 5, 8, 9, 10, 5, 5, 11, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 12, 5, 5, 13, 14, 5, 15, 16, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 17, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 18, 19, 5, 20, 21, 22, 5, 5, 5, 23, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5}; +const uint16_t composition_block[67][257] = { + {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 3, 5, 7, 7, 7, 39, 45, 55, 67, 101, 103, 117, 131, 161, + 163, 173, 185, 191, 209, 241, 245, 245, 261, 275, 289, 327, 331, 343, 347, + 365, 377, 377, 377, 377, 377, 377, 377, 409, 415, 425, 437, 471, 473, 487, + 503, 531, 535, 545, 557, 563, 581, 613, 617, 617, 633, 647, 663, 701, 705, + 719, 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7918, 777, + 7916, 803, 7920, 768, 7915, 769, 7913, 771, 7919, 777, 7917, + 803, 7921, 780, 494, 772, 492, 772, 493, 772, 480, 772, + 481, 774, 7708, 774, 7709, 772, 560, 772, 561, 780, 495, + 768, 8122, 769, 902, 772, 8121, 774, 8120, 787, 7944, 788, + 7945, 837, 8124, 768, 8136, 769, 904, 787, 7960, 788, 7961, + 768, 8138, 769, 905, 787, 7976, 788, 7977, 837, 8140, 768, + 8154, 769, 906, 772, 8153, 774, 8152, 776, 938, 787, 7992, + 788, 7993, 768, 8184, 769, 908, 787, 8008, 788, 8009, 788, + 8172, 768, 8170, 769, 910, 772, 8169, 774, 8168, 776, 939, + 788, 8025, 768, 8186, 769, 911, 787, 8040, 788, 8041, 837, + 8188, 837, 8116, 837, 8132, 768, 8048, 769, 940, 772, 8113, + 774, 8112, 787, 7936, 788, 7937, 834, 8118, 837, 8115, 768, + 8050, 769, 941, 787, 7952, 788, 7953, 768, 8052, 769, 942, + 787, 7968, 788, 7969, 834, 8134, 837, 8131, 768, 8054, 769, + 943, 772, 8145, 774, 8144, 776, 970, 787, 7984, 788, 7985, + 834, 8150, 768, 8056, 769, 972, 787, 8000, 788, 8001, 787, + 8164, 788, 8165, 768, 8058, 769, 973, 772, 8161, 774, 8160, + 776, 971, 787, 8016, 788, 8017, 834, 8166, 768, 8060, 769, + 974, 787, 8032, 788, 8033, 834, 8182, 837, 8179, 768, 8146, + 769, 912, 834, 8151, 768, 8162, 769, 944, 834, 8167, 837, + 8180, 769, 979, 776, 980, 776, 1031, 774, 1232, 776, 1234, + 769, 1027, 768, 1024, 774, 1238, 776, 1025, 774, 1217, 776, + 1244, 776, 1246, 768, 1037, 772, 1250, 774, 1049, 776, 1252, + 769, 1036, 776, 1254, 772, 1262, 774, 1038, 776, 1264, 779, + 1266, 776, 1268, 776, 1272, 776, 1260, 774, 1233, 776, 1235, + 769, 1107, 768, 1104, 774, 1239, 776, 1105, 774, 1218, 776, + 1245, 776, 1247, 768, 1117, 772, 1251, 774, 1081, 776, 1253, + 769, 1116, 776, 1255, 772, 1263, 774, 1118, 776, 1265, 779, + 1267, 776, 1269, 776, 1273, 776, 1261, 776, 1111, 783, 1142, + 783, 1143, 776, 1242, 776, 1243, 776, 1258, 776, 1259, 1619, + 1570, 1620, 1571, 1621, 1573, 1620, 1572, 1620, 1574, 1620, 1730, + 1620, 1747, 1620, 1728, 2364, 2345, 2364, 2353, 2364, 2356, 2494, + 2507, 2519, 2508, 2878, 2891, 2902, 2888, 2903, 2892, 3031, 2964, + 3006, 3018, 3031, 3020, 3006, 3019, 3158, 3144, 3285, 3264, 3266, + 3274, 3285, 3271, 3286, 3272, 3285, 3275, 3390, 3402, 3415, 3404, + 3390, 3403, 3530, 3546, 3535, 3548, 3551, 3550, 3530, 3549, 4142, + 4134, 6965, 6918, 6965, 6920, 6965, 6922, 6965, 6924, 6965, 6926, + 6965, 6930, 6965, 6971, 6965, 6973, 6965, 6976, 6965, 6977, 6965, + 6979, 772, 7736, 772, 7737, 772, 7772, 772, 7773, 775, 7784, + 775, 7785, 770, 7852, 774, 7862, 770, 7853, 774, 7863, 770, + 7878, 770, 7879, 770, 7896, 770, 7897, 768, 7938, 769, 7940, + 834, 7942, 837, 8064, 768, 7939, 769, 7941, 834, 7943, 837, + 8065, 837, 8066, 837, 8067, 837, 8068, 837, 8069, 837, 8070, + 837, 8071, 768, 7946, 769, 7948, 834, 7950, 837, 8072, 768, + 7947, 769, 7949, 834, 7951, 837, 8073, 837, 8074, 837, 8075, + 837, 8076, 837, 8077, 837, 8078, 837, 8079, 768, 7954, 769, + 7956, 768, 7955, 769, 7957, 768, 7962, 769, 7964, 768, 7963, + 769, 7965, 768, 7970, 769, 7972, 834, 7974, 837, 8080, 768, + 7971, 769, 7973, 834, 7975, 837, 8081, 837, 8082, 837, 8083, + 837, 8084, 837, 8085, 837, 8086, 837, 8087, 768, 7978, 769, + 7980, 834, 7982, 837, 8088, 768, 7979, 769, 7981, 834, 7983, + 837, 8089, 837, 8090, 837, 8091, 837, 8092, 837, 8093, 837, + 8094, 837, 8095, 768, 7986, 769, 7988, 834, 7990, 768, 7987, + 769, 7989, 834, 7991, 768, 7994, 769, 7996, 834, 7998, 768, + 7995, 769, 7997, 834, 7999, 768, 8002, 769, 8004, 768, 8003, + 769, 8005, 768, 8010, 769, 8012, 768, 8011, 769, 8013, 768, + 8018, 769, 8020, 834, 8022, 768, 8019, 769, 8021, 834, 8023, + 768, 8027, 769, 8029, 834, 8031, 768, 8034, 769, 8036, 834, + 8038, 837, 8096, 768, 8035, 769, 8037, 834, 8039, 837, 8097, + 837, 8098, 837, 8099, 837, 8100, 837, 8101, 837, 8102, 837, + 8103, 768, 8042, 769, 8044, 834, 8046, 837, 8104, 768, 8043, + 769, 8045, 834, 8047, 837, 8105, 837, 8106, 837, 8107, 837, + 8108, 837, 8109, 837, 8110, 837, 8111, 837, 8114, 837, 8130, + 837, 8178, 837, 8119, 768, 8141, 769, 8142, 834, 8143, 837, + 8135, 837, 8183, 768, 8157, 769, 8158, 834, 8159, 824, 8602, + 824, 8603, 824, 8622, 824, 8653, 824, 8655, 824, 8654, 824, + 8708, 824, 8713, 824, 8716, 824, 8740, 824, 8742, 824, 8769, + 824, 8772, 824, 8775, 824, 8777, 824, 8813, 824, 8802, 824, + 8816, 824, 8817, 824, 8820, 824, 8821, 824, 8824, 824, 8825, + 824, 8832, 824, 8833, 824, 8928, 824, 8929, 824, 8836, 824, + 8837, 824, 8840, 824, 8841, 824, 8930, 824, 8931, 824, 8876, + 824, 8877, 824, 8878, 824, 8879, 824, 8938, 824, 8939, 824, + 8940, 824, 8941, 12441, 12436, 12441, 12364, 12441, 12366, 12441, 12368, + 12441, 12370, 12441, 12372, 12441, 12374, 12441, 12376, 12441, 12378, 12441, + 12380, 12441, 12382, 12441, 12384, 12441, 12386, 12441, 12389, 12441, 12391, + 12441, 12393, 12441, 12400, 12442, 12401, 12441, 12403, 12442, 12404, 12441, + 12406, 12442, 12407, 12441, 12409, 12442, 12410, 12441, 12412, 12442, 12413, + 12441, 12446, 12441, 12532, 12441, 12460, 12441, 12462, 12441, 12464, 12441, + 12466, 12441, 12468, 12441, 12470, 12441, 12472, 12441, 12474, 12441, 12476, + 12441, 12478, 12441, 12480, 12441, 12482, 12441, 12485, 12441, 12487, 12441, + 12489, 12441, 12496, 12442, 12497, 12441, 12499, 12442, 12500, 12441, 12502, + 12442, 12503, 12441, 12505, 12442, 12506, 12441, 12508, 12442, 12509, 12441, + 12535, 12441, 12536, 12441, 12537, 12441, 12538, 12441, 12542, 69818, 69786, + 69818, 69788, 69818, 69803, 69927, 69934, 69927, 69935, 70462, 70475, 70487, + 70476, 70832, 70844, 70842, 70843, 70845, 70846, 71087, 71098, 71087, 71099, + 71984, 71992}; + +} // namespace ada::idna +#endif // ADA_IDNA_NORMALIZATION_TABLES_H +/* end file src/normalization_tables.cpp */ + +namespace ada::idna { + +// See +// https://github.com/uni-algo/uni-algo/blob/c612968c5ed3ace39bde4c894c24286c5f2c7fe2/include/uni_algo/impl/impl_norm.h#L467 +constexpr char32_t hangul_sbase = 0xAC00; +constexpr char32_t hangul_tbase = 0x11A7; +constexpr char32_t hangul_vbase = 0x1161; +constexpr char32_t hangul_lbase = 0x1100; +constexpr char32_t hangul_lcount = 19; +constexpr char32_t hangul_vcount = 21; +constexpr char32_t hangul_tcount = 28; +constexpr char32_t hangul_ncount = hangul_vcount * hangul_tcount; +constexpr char32_t hangul_scount = + hangul_lcount * hangul_vcount * hangul_tcount; + +std::pair compute_decomposition_length( + const std::u32string_view input) noexcept { + bool decomposition_needed{false}; + size_t additional_elements{0}; + for (char32_t current_character : input) { + size_t decomposition_length{0}; + + if (current_character >= hangul_sbase && + current_character < hangul_sbase + hangul_scount) { + decomposition_length = 2; + if ((current_character - hangul_sbase) % hangul_tcount) { + decomposition_length = 3; + } + } else if (current_character < 0x110000) { + const uint8_t di = decomposition_index[current_character >> 8]; + const uint16_t* const decomposition = + decomposition_block[di] + (current_character % 256); + decomposition_length = (decomposition[1] >> 2) - (decomposition[0] >> 2); + if ((decomposition_length > 0) && (decomposition[0] & 1)) { + decomposition_length = 0; + } + } + if (decomposition_length != 0) { + decomposition_needed = true; + additional_elements += decomposition_length - 1; + } + } + return {decomposition_needed, additional_elements}; +} + +void decompose(std::u32string& input, size_t additional_elements) { + input.resize(input.size() + additional_elements); + for (size_t descending_idx = input.size(), + input_count = descending_idx - additional_elements; + input_count--;) { + if (input[input_count] >= hangul_sbase && + input[input_count] < hangul_sbase + hangul_scount) { + // Hangul decomposition. + char32_t s_index = input[input_count] - hangul_sbase; + if (s_index % hangul_tcount != 0) { + input[--descending_idx] = hangul_tbase + s_index % hangul_tcount; + } + input[--descending_idx] = + hangul_vbase + (s_index % hangul_ncount) / hangul_tcount; + input[--descending_idx] = hangul_lbase + s_index / hangul_ncount; + } else if (input[input_count] < 0x110000) { + // Check decomposition_data. + const uint16_t* decomposition = + decomposition_block[decomposition_index[input[input_count] >> 8]] + + (input[input_count] % 256); + uint16_t decomposition_length = + (decomposition[1] >> 2) - (decomposition[0] >> 2); + if (decomposition_length > 0 && (decomposition[0] & 1)) { + decomposition_length = 0; + } + if (decomposition_length > 0) { + // Non-recursive decomposition. + while (decomposition_length-- > 0) { + input[--descending_idx] = decomposition_data[(decomposition[0] >> 2) + + decomposition_length]; + } + } else { + // No decomposition. + input[--descending_idx] = input[input_count]; + } + } else { + // Non-Unicode character. + input[--descending_idx] = input[input_count]; + } + } +} + +uint8_t get_ccc(char32_t c) noexcept { + return c < 0x110000 ? canonical_combining_class_block + [canonical_combining_class_index[c >> 8]][c % 256] + : 0; +} + +void sort_marks(std::u32string& input) { + for (size_t idx = 1; idx < input.size(); idx++) { + uint8_t ccc = get_ccc(input[idx]); + if (ccc == 0) { + continue; + } // Skip non-combining characters. + auto current_character = input[idx]; + size_t back_idx = idx; + while (back_idx != 0 && get_ccc(input[back_idx - 1]) > ccc) { + input[back_idx] = input[back_idx - 1]; + back_idx--; + } + input[back_idx] = current_character; + } +} + +void decompose_nfc(std::u32string& input) { + /** + * Decompose the domain_name string to Unicode Normalization Form C. + * @see https://www.unicode.org/reports/tr46/#ProcessingStepDecompose + */ + auto [decomposition_needed, additional_elements] = + compute_decomposition_length(input); + if (decomposition_needed) { + decompose(input, additional_elements); + } + sort_marks(input); +} + +void compose(std::u32string& input) { + /** + * Compose the domain_name string to Unicode Normalization Form C. + * @see https://www.unicode.org/reports/tr46/#ProcessingStepCompose + */ + size_t input_count{0}; + size_t composition_count{0}; + for (; input_count < input.size(); input_count++, composition_count++) { + input[composition_count] = input[input_count]; + if (input[input_count] >= hangul_lbase && + input[input_count] < hangul_lbase + hangul_lcount) { + if (input_count + 1 < input.size() && + input[input_count + 1] >= hangul_vbase && + input[input_count + 1] < hangul_vbase + hangul_vcount) { + input[composition_count] = + hangul_sbase + + ((input[input_count] - hangul_lbase) * hangul_vcount + + input[input_count + 1] - hangul_vbase) * + hangul_tcount; + input_count++; + if (input_count + 1 < input.size() && + input[input_count + 1] > hangul_tbase && + input[input_count + 1] < hangul_tbase + hangul_tcount) { + input[composition_count] += input[++input_count] - hangul_tbase; + } + } + } else if (input[input_count] >= hangul_sbase && + input[input_count] < hangul_sbase + hangul_scount) { + if ((input[input_count] - hangul_sbase) % hangul_tcount && + input_count + 1 < input.size() && + input[input_count + 1] > hangul_tbase && + input[input_count + 1] < hangul_tbase + hangul_tcount) { + input[composition_count] += input[++input_count] - hangul_tbase; + } + } else if (input[input_count] < 0x110000) { + const uint16_t* composition = + &composition_block[composition_index[input[input_count] >> 8]] + [input[input_count] % 256]; + size_t initial_composition_count = composition_count; + for (int32_t previous_ccc = -1; input_count + 1 < input.size(); + input_count++) { + uint8_t ccc = get_ccc(input[input_count + 1]); + + if (composition[1] != composition[0] && previous_ccc < ccc) { + // Try finding a composition. + uint16_t left = composition[0]; + uint16_t right = composition[1]; + while (left + 2 < right) { + // mean without overflow + uint16_t middle = left + (((right - left) >> 1) & ~1); + if (composition_data[middle] <= input[input_count + 1]) { + left = middle; + } + if (composition_data[middle] >= input[input_count + 1]) { + right = middle; + } + } + if (composition_data[left] == input[input_count + 1]) { + input[initial_composition_count] = composition_data[left + 1]; + composition = + &composition_block + [composition_index[composition_data[left + 1] >> 8]] + [composition_data[left + 1] % 256]; + continue; + } + } + + if (ccc == 0) { + break; + } // Not a combining character. + previous_ccc = ccc; + input[++composition_count] = input[input_count + 1]; + } + } + } + + if (composition_count < input_count) { + input.resize(composition_count); + } +} + +void normalize(std::u32string& input) { + /** + * Normalize the domain_name string to Unicode Normalization Form C. + * @see https://www.unicode.org/reports/tr46/#ProcessingStepNormalize + */ + decompose_nfc(input); + compose(input); +} + +} // namespace ada::idna +/* end file src/normalization.cpp */ +/* begin file src/punycode.cpp */ + +#include + +namespace ada::idna { + +constexpr int32_t base = 36; +constexpr int32_t tmin = 1; +constexpr int32_t tmax = 26; +constexpr int32_t skew = 38; +constexpr int32_t damp = 700; +constexpr int32_t initial_bias = 72; +constexpr uint32_t initial_n = 128; + +static constexpr int32_t char_to_digit_value(char value) { + if (value >= 'a' && value <= 'z') return value - 'a'; + if (value >= '0' && value <= '9') return value - '0' + 26; + return -1; +} + +static constexpr char digit_to_char(int32_t digit) { + return digit < 26 ? char(digit + 97) : char(digit + 22); +} + +static constexpr int32_t adapt(int32_t d, int32_t n, bool firsttime) { + if (firsttime) { + d = d / damp; + } else { + d = d / 2; + } + d += d / n; + int32_t k = 0; + while (d > ((base - tmin) * tmax) / 2) { + d /= base - tmin; + k += base; + } + return k + (((base - tmin + 1) * d) / (d + skew)); +} + +bool punycode_to_utf32(std::string_view input, std::u32string &out) { + int32_t written_out{0}; + out.reserve(out.size() + input.size()); + uint32_t n = initial_n; + int32_t i = 0; + int32_t bias = initial_bias; + // grab ascii content + size_t end_of_ascii = input.find_last_of('-'); + if (end_of_ascii != std::string_view::npos) { + for (uint8_t c : input.substr(0, end_of_ascii)) { + if (c >= 0x80) { + return false; + } + out.push_back(c); + written_out++; + } + input.remove_prefix(end_of_ascii + 1); + } + while (!input.empty()) { + int32_t oldi = i; + int32_t w = 1; + for (int32_t k = base;; k += base) { + if (input.empty()) { + return false; + } + uint8_t code_point = input.front(); + input.remove_prefix(1); + int32_t digit = char_to_digit_value(code_point); + if (digit < 0) { + return false; + } + if (digit > (0x7fffffff - i) / w) { + return false; + } + i = i + digit * w; + int32_t t = k <= bias ? tmin : k >= bias + tmax ? tmax : k - bias; + if (digit < t) { + break; + } + if (w > 0x7fffffff / (base - t)) { + return false; + } + w = w * (base - t); + } + bias = adapt(i - oldi, written_out + 1, oldi == 0); + if (i / (written_out + 1) > int32_t(0x7fffffff - n)) { + return false; + } + n = n + i / (written_out + 1); + i = i % (written_out + 1); + if (n < 0x80) { + return false; + } + out.insert(out.begin() + i, n); + written_out++; + ++i; + } + + return true; +} + +bool verify_punycode(std::string_view input) { + size_t written_out{0}; + uint32_t n = initial_n; + int32_t i = 0; + int32_t bias = initial_bias; + // grab ascii content + size_t end_of_ascii = input.find_last_of('-'); + if (end_of_ascii != std::string_view::npos) { + for (uint8_t c : input.substr(0, end_of_ascii)) { + if (c >= 0x80) { + return false; + } + written_out++; + } + input.remove_prefix(end_of_ascii + 1); + } + while (!input.empty()) { + int32_t oldi = i; + int32_t w = 1; + for (int32_t k = base;; k += base) { + if (input.empty()) { + return false; + } + uint8_t code_point = input.front(); + input.remove_prefix(1); + int32_t digit = char_to_digit_value(code_point); + if (digit < 0) { + return false; + } + if (digit > (0x7fffffff - i) / w) { + return false; + } + i = i + digit * w; + int32_t t = k <= bias ? tmin : k >= bias + tmax ? tmax : k - bias; + if (digit < t) { + break; + } + if (w > 0x7fffffff / (base - t)) { + return false; + } + w = w * (base - t); + } + bias = adapt(i - oldi, int32_t(written_out + 1), oldi == 0); + if (i / (written_out + 1) > 0x7fffffff - n) { + return false; + } + n = n + i / int32_t(written_out + 1); + i = i % int32_t(written_out + 1); + if (n < 0x80) { + return false; + } + written_out++; + ++i; + } + + return true; +} + +bool utf32_to_punycode(std::u32string_view input, std::string &out) { + out.reserve(input.size() + out.size()); + uint32_t n = initial_n; + int32_t d = 0; + int32_t bias = initial_bias; + size_t h = 0; + // first push the ascii content + for (uint32_t c : input) { + if (c < 0x80) { + ++h; + out.push_back(char(c)); + } + if (c > 0x10ffff || (c >= 0xd880 && c < 0xe000)) { + return false; + } + } + size_t b = h; + if (b > 0) { + out.push_back('-'); + } + while (h < input.size()) { + uint32_t m = 0x10FFFF; + for (auto code_point : input) { + if (code_point >= n && code_point < m) m = code_point; + } + + if ((m - n) > (0x7fffffff - d) / (h + 1)) { + return false; + } + d = d + int32_t((m - n) * (h + 1)); + n = m; + for (auto c : input) { + if (c < n) { + if (d == 0x7fffffff) { + return false; + } + ++d; + } + if (c == n) { + int32_t q = d; + for (int32_t k = base;; k += base) { + int32_t t = k <= bias ? tmin : k >= bias + tmax ? tmax : k - bias; + + if (q < t) { + break; + } + out.push_back(digit_to_char(t + ((q - t) % (base - t)))); + q = (q - t) / (base - t); + } + out.push_back(digit_to_char(q)); + bias = adapt(d, int32_t(h + 1), h == b); + d = 0; + ++h; + } + } + ++d; + ++n; + } + return true; +} + +} // namespace ada::idna +/* end file src/punycode.cpp */ +/* begin file src/validity.cpp */ +#include +#include + +namespace ada::idna { + +enum direction : uint8_t { + NONE, + BN, + CS, + ES, + ON, + EN, + L, + R, + NSM, + AL, + AN, + ET, + WS, + RLO, + LRO, + PDF, + RLE, + RLI, + FSI, + PDI, + LRI, + B, + S, + LRE +}; + +struct directions { + uint32_t start_code; + uint32_t final_code; + direction direct; +}; + +static directions dir_table[] = { + {0x0, 0x8, direction::BN}, {0x9, 0x9, direction::S}, + {0xa, 0xa, direction::B}, {0xb, 0xb, direction::S}, + {0xc, 0xc, direction::WS}, {0xd, 0xd, direction::B}, + {0xe, 0x1b, direction::BN}, {0x1c, 0x1e, direction::B}, + {0x1f, 0x1f, direction::S}, {0x20, 0x20, direction::WS}, + {0x21, 0x22, direction::ON}, {0x23, 0x25, direction::ET}, + {0x26, 0x2a, direction::ON}, {0x2b, 0x2b, direction::ES}, + {0x2c, 0x2c, direction::CS}, {0x2d, 0x2d, direction::ES}, + {0x2e, 0x2f, direction::CS}, {0x30, 0x39, direction::EN}, + {0x3a, 0x3a, direction::CS}, {0x3b, 0x40, direction::ON}, + {0x41, 0x5a, direction::L}, {0x5b, 0x60, direction::ON}, + {0x61, 0x7a, direction::L}, {0x7b, 0x7e, direction::ON}, + {0x7f, 0x84, direction::BN}, {0x85, 0x85, direction::B}, + {0x86, 0x9f, direction::BN}, {0xa0, 0xa0, direction::CS}, + {0xa1, 0xa1, direction::ON}, {0xa2, 0xa5, direction::ET}, + {0xa6, 0xa9, direction::ON}, {0xaa, 0xaa, direction::L}, + {0xab, 0xac, direction::ON}, {0xad, 0xad, direction::BN}, + {0xae, 0xaf, direction::ON}, {0xb0, 0xb1, direction::ET}, + {0xb2, 0xb3, direction::EN}, {0xb4, 0xb4, direction::ON}, + {0xb5, 0xb5, direction::L}, {0xb6, 0xb8, direction::ON}, + {0xb9, 0xb9, direction::EN}, {0xba, 0xba, direction::L}, + {0xbb, 0xbf, direction::ON}, {0xc0, 0xd6, direction::L}, + {0xd7, 0xd7, direction::ON}, {0xd8, 0xf6, direction::L}, + {0xf7, 0xf7, direction::ON}, {0xf8, 0x2b8, direction::L}, + {0x2b9, 0x2ba, direction::ON}, {0x2bb, 0x2c1, direction::L}, + {0x2c2, 0x2cf, direction::ON}, {0x2d0, 0x2d1, direction::L}, + {0x2d2, 0x2df, direction::ON}, {0x2e0, 0x2e4, direction::L}, + {0x2e5, 0x2ed, direction::ON}, {0x2ee, 0x2ee, direction::L}, + {0x2ef, 0x2ff, direction::ON}, {0x300, 0x36f, direction::NSM}, + {0x370, 0x373, direction::L}, {0x374, 0x375, direction::ON}, + {0x376, 0x377, direction::L}, {0x37a, 0x37d, direction::L}, + {0x37e, 0x37e, direction::ON}, {0x37f, 0x37f, direction::L}, + {0x384, 0x385, direction::ON}, {0x386, 0x386, direction::L}, + {0x387, 0x387, direction::ON}, {0x388, 0x38a, direction::L}, + {0x38c, 0x38c, direction::L}, {0x38e, 0x3a1, direction::L}, + {0x3a3, 0x3f5, direction::L}, {0x3f6, 0x3f6, direction::ON}, + {0x3f7, 0x482, direction::L}, {0x483, 0x489, direction::NSM}, + {0x48a, 0x52f, direction::L}, {0x531, 0x556, direction::L}, + {0x559, 0x589, direction::L}, {0x58a, 0x58a, direction::ON}, + {0x58d, 0x58e, direction::ON}, {0x58f, 0x58f, direction::ET}, + {0x591, 0x5bd, direction::NSM}, {0x5be, 0x5be, direction::R}, + {0x5bf, 0x5bf, direction::NSM}, {0x5c0, 0x5c0, direction::R}, + {0x5c1, 0x5c2, direction::NSM}, {0x5c3, 0x5c3, direction::R}, + {0x5c4, 0x5c5, direction::NSM}, {0x5c6, 0x5c6, direction::R}, + {0x5c7, 0x5c7, direction::NSM}, {0x5d0, 0x5ea, direction::R}, + {0x5ef, 0x5f4, direction::R}, {0x600, 0x605, direction::AN}, + {0x606, 0x607, direction::ON}, {0x608, 0x608, direction::AL}, + {0x609, 0x60a, direction::ET}, {0x60b, 0x60b, direction::AL}, + {0x60c, 0x60c, direction::CS}, {0x60d, 0x60d, direction::AL}, + {0x60e, 0x60f, direction::ON}, {0x610, 0x61a, direction::NSM}, + {0x61b, 0x61c, direction::AL}, {0x61e, 0x64a, direction::AL}, + {0x64b, 0x65f, direction::NSM}, {0x660, 0x669, direction::AN}, + {0x66a, 0x66a, direction::ET}, {0x66b, 0x66c, direction::AN}, + {0x66d, 0x66f, direction::AL}, {0x670, 0x670, direction::NSM}, + {0x671, 0x6d5, direction::AL}, {0x6d6, 0x6dc, direction::NSM}, + {0x6dd, 0x6dd, direction::AN}, {0x6de, 0x6de, direction::ON}, + {0x6df, 0x6e4, direction::NSM}, {0x6e5, 0x6e6, direction::AL}, + {0x6e7, 0x6e8, direction::NSM}, {0x6e9, 0x6e9, direction::ON}, + {0x6ea, 0x6ed, direction::NSM}, {0x6ee, 0x6ef, direction::AL}, + {0x6f0, 0x6f9, direction::EN}, {0x6fa, 0x70d, direction::AL}, + {0x70f, 0x710, direction::AL}, {0x711, 0x711, direction::NSM}, + {0x712, 0x72f, direction::AL}, {0x730, 0x74a, direction::NSM}, + {0x74d, 0x7a5, direction::AL}, {0x7a6, 0x7b0, direction::NSM}, + {0x7b1, 0x7b1, direction::AL}, {0x7c0, 0x7ea, direction::R}, + {0x7eb, 0x7f3, direction::NSM}, {0x7f4, 0x7f5, direction::R}, + {0x7f6, 0x7f9, direction::ON}, {0x7fa, 0x7fa, direction::R}, + {0x7fd, 0x7fd, direction::NSM}, {0x7fe, 0x815, direction::R}, + {0x816, 0x819, direction::NSM}, {0x81a, 0x81a, direction::R}, + {0x81b, 0x823, direction::NSM}, {0x824, 0x824, direction::R}, + {0x825, 0x827, direction::NSM}, {0x828, 0x828, direction::R}, + {0x829, 0x82d, direction::NSM}, {0x830, 0x83e, direction::R}, + {0x840, 0x858, direction::R}, {0x859, 0x85b, direction::NSM}, + {0x85e, 0x85e, direction::R}, {0x860, 0x86a, direction::AL}, + {0x8a0, 0x8b4, direction::AL}, {0x8b6, 0x8c7, direction::AL}, + {0x8d3, 0x8e1, direction::NSM}, {0x8e2, 0x8e2, direction::AN}, + {0x8e3, 0x902, direction::NSM}, {0x903, 0x939, direction::L}, + {0x93a, 0x93a, direction::NSM}, {0x93b, 0x93b, direction::L}, + {0x93c, 0x93c, direction::NSM}, {0x93d, 0x940, direction::L}, + {0x941, 0x948, direction::NSM}, {0x949, 0x94c, direction::L}, + {0x94d, 0x94d, direction::NSM}, {0x94e, 0x950, direction::L}, + {0x951, 0x957, direction::NSM}, {0x958, 0x961, direction::L}, + {0x962, 0x963, direction::NSM}, {0x964, 0x980, direction::L}, + {0x981, 0x981, direction::NSM}, {0x982, 0x983, direction::L}, + {0x985, 0x98c, direction::L}, {0x98f, 0x990, direction::L}, + {0x993, 0x9a8, direction::L}, {0x9aa, 0x9b0, direction::L}, + {0x9b2, 0x9b2, direction::L}, {0x9b6, 0x9b9, direction::L}, + {0x9bc, 0x9bc, direction::NSM}, {0x9bd, 0x9c0, direction::L}, + {0x9c1, 0x9c4, direction::NSM}, {0x9c7, 0x9c8, direction::L}, + {0x9cb, 0x9cc, direction::L}, {0x9cd, 0x9cd, direction::NSM}, + {0x9ce, 0x9ce, direction::L}, {0x9d7, 0x9d7, direction::L}, + {0x9dc, 0x9dd, direction::L}, {0x9df, 0x9e1, direction::L}, + {0x9e2, 0x9e3, direction::NSM}, {0x9e6, 0x9f1, direction::L}, + {0x9f2, 0x9f3, direction::ET}, {0x9f4, 0x9fa, direction::L}, + {0x9fb, 0x9fb, direction::ET}, {0x9fc, 0x9fd, direction::L}, + {0x9fe, 0x9fe, direction::NSM}, {0xa01, 0xa02, direction::NSM}, + {0xa03, 0xa03, direction::L}, {0xa05, 0xa0a, direction::L}, + {0xa0f, 0xa10, direction::L}, {0xa13, 0xa28, direction::L}, + {0xa2a, 0xa30, direction::L}, {0xa32, 0xa33, direction::L}, + {0xa35, 0xa36, direction::L}, {0xa38, 0xa39, direction::L}, + {0xa3c, 0xa3c, direction::NSM}, {0xa3e, 0xa40, direction::L}, + {0xa41, 0xa42, direction::NSM}, {0xa47, 0xa48, direction::NSM}, + {0xa4b, 0xa4d, direction::NSM}, {0xa51, 0xa51, direction::NSM}, + {0xa59, 0xa5c, direction::L}, {0xa5e, 0xa5e, direction::L}, + {0xa66, 0xa6f, direction::L}, {0xa70, 0xa71, direction::NSM}, + {0xa72, 0xa74, direction::L}, {0xa75, 0xa75, direction::NSM}, + {0xa76, 0xa76, direction::L}, {0xa81, 0xa82, direction::NSM}, + {0xa83, 0xa83, direction::L}, {0xa85, 0xa8d, direction::L}, + {0xa8f, 0xa91, direction::L}, {0xa93, 0xaa8, direction::L}, + {0xaaa, 0xab0, direction::L}, {0xab2, 0xab3, direction::L}, + {0xab5, 0xab9, direction::L}, {0xabc, 0xabc, direction::NSM}, + {0xabd, 0xac0, direction::L}, {0xac1, 0xac5, direction::NSM}, + {0xac7, 0xac8, direction::NSM}, {0xac9, 0xac9, direction::L}, + {0xacb, 0xacc, direction::L}, {0xacd, 0xacd, direction::NSM}, + {0xad0, 0xad0, direction::L}, {0xae0, 0xae1, direction::L}, + {0xae2, 0xae3, direction::NSM}, {0xae6, 0xaf0, direction::L}, + {0xaf1, 0xaf1, direction::ET}, {0xaf9, 0xaf9, direction::L}, + {0xafa, 0xaff, direction::NSM}, {0xb01, 0xb01, direction::NSM}, + {0xb02, 0xb03, direction::L}, {0xb05, 0xb0c, direction::L}, + {0xb0f, 0xb10, direction::L}, {0xb13, 0xb28, direction::L}, + {0xb2a, 0xb30, direction::L}, {0xb32, 0xb33, direction::L}, + {0xb35, 0xb39, direction::L}, {0xb3c, 0xb3c, direction::NSM}, + {0xb3d, 0xb3e, direction::L}, {0xb3f, 0xb3f, direction::NSM}, + {0xb40, 0xb40, direction::L}, {0xb41, 0xb44, direction::NSM}, + {0xb47, 0xb48, direction::L}, {0xb4b, 0xb4c, direction::L}, + {0xb4d, 0xb4d, direction::NSM}, {0xb55, 0xb56, direction::NSM}, + {0xb57, 0xb57, direction::L}, {0xb5c, 0xb5d, direction::L}, + {0xb5f, 0xb61, direction::L}, {0xb62, 0xb63, direction::NSM}, + {0xb66, 0xb77, direction::L}, {0xb82, 0xb82, direction::NSM}, + {0xb83, 0xb83, direction::L}, {0xb85, 0xb8a, direction::L}, + {0xb8e, 0xb90, direction::L}, {0xb92, 0xb95, direction::L}, + {0xb99, 0xb9a, direction::L}, {0xb9c, 0xb9c, direction::L}, + {0xb9e, 0xb9f, direction::L}, {0xba3, 0xba4, direction::L}, + {0xba8, 0xbaa, direction::L}, {0xbae, 0xbb9, direction::L}, + {0xbbe, 0xbbf, direction::L}, {0xbc0, 0xbc0, direction::NSM}, + {0xbc1, 0xbc2, direction::L}, {0xbc6, 0xbc8, direction::L}, + {0xbca, 0xbcc, direction::L}, {0xbcd, 0xbcd, direction::NSM}, + {0xbd0, 0xbd0, direction::L}, {0xbd7, 0xbd7, direction::L}, + {0xbe6, 0xbf2, direction::L}, {0xbf3, 0xbf8, direction::ON}, + {0xbf9, 0xbf9, direction::ET}, {0xbfa, 0xbfa, direction::ON}, + {0xc00, 0xc00, direction::NSM}, {0xc01, 0xc03, direction::L}, + {0xc04, 0xc04, direction::NSM}, {0xc05, 0xc0c, direction::L}, + {0xc0e, 0xc10, direction::L}, {0xc12, 0xc28, direction::L}, + {0xc2a, 0xc39, direction::L}, {0xc3d, 0xc3d, direction::L}, + {0xc3e, 0xc40, direction::NSM}, {0xc41, 0xc44, direction::L}, + {0xc46, 0xc48, direction::NSM}, {0xc4a, 0xc4d, direction::NSM}, + {0xc55, 0xc56, direction::NSM}, {0xc58, 0xc5a, direction::L}, + {0xc60, 0xc61, direction::L}, {0xc62, 0xc63, direction::NSM}, + {0xc66, 0xc6f, direction::L}, {0xc77, 0xc77, direction::L}, + {0xc78, 0xc7e, direction::ON}, {0xc7f, 0xc80, direction::L}, + {0xc81, 0xc81, direction::NSM}, {0xc82, 0xc8c, direction::L}, + {0xc8e, 0xc90, direction::L}, {0xc92, 0xca8, direction::L}, + {0xcaa, 0xcb3, direction::L}, {0xcb5, 0xcb9, direction::L}, + {0xcbc, 0xcbc, direction::NSM}, {0xcbd, 0xcc4, direction::L}, + {0xcc6, 0xcc8, direction::L}, {0xcca, 0xccb, direction::L}, + {0xccc, 0xccd, direction::NSM}, {0xcd5, 0xcd6, direction::L}, + {0xcde, 0xcde, direction::L}, {0xce0, 0xce1, direction::L}, + {0xce2, 0xce3, direction::NSM}, {0xce6, 0xcef, direction::L}, + {0xcf1, 0xcf2, direction::L}, {0xd00, 0xd01, direction::NSM}, + {0xd02, 0xd0c, direction::L}, {0xd0e, 0xd10, direction::L}, + {0xd12, 0xd3a, direction::L}, {0xd3b, 0xd3c, direction::NSM}, + {0xd3d, 0xd40, direction::L}, {0xd41, 0xd44, direction::NSM}, + {0xd46, 0xd48, direction::L}, {0xd4a, 0xd4c, direction::L}, + {0xd4d, 0xd4d, direction::NSM}, {0xd4e, 0xd4f, direction::L}, + {0xd54, 0xd61, direction::L}, {0xd62, 0xd63, direction::NSM}, + {0xd66, 0xd7f, direction::L}, {0xd81, 0xd81, direction::NSM}, + {0xd82, 0xd83, direction::L}, {0xd85, 0xd96, direction::L}, + {0xd9a, 0xdb1, direction::L}, {0xdb3, 0xdbb, direction::L}, + {0xdbd, 0xdbd, direction::L}, {0xdc0, 0xdc6, direction::L}, + {0xdca, 0xdca, direction::NSM}, {0xdcf, 0xdd1, direction::L}, + {0xdd2, 0xdd4, direction::NSM}, {0xdd6, 0xdd6, direction::NSM}, + {0xdd8, 0xddf, direction::L}, {0xde6, 0xdef, direction::L}, + {0xdf2, 0xdf4, direction::L}, {0xe01, 0xe30, direction::L}, + {0xe31, 0xe31, direction::NSM}, {0xe32, 0xe33, direction::L}, + {0xe34, 0xe3a, direction::NSM}, {0xe3f, 0xe3f, direction::ET}, + {0xe40, 0xe46, direction::L}, {0xe47, 0xe4e, direction::NSM}, + {0xe4f, 0xe5b, direction::L}, {0xe81, 0xe82, direction::L}, + {0xe84, 0xe84, direction::L}, {0xe86, 0xe8a, direction::L}, + {0xe8c, 0xea3, direction::L}, {0xea5, 0xea5, direction::L}, + {0xea7, 0xeb0, direction::L}, {0xeb1, 0xeb1, direction::NSM}, + {0xeb2, 0xeb3, direction::L}, {0xeb4, 0xebc, direction::NSM}, + {0xebd, 0xebd, direction::L}, {0xec0, 0xec4, direction::L}, + {0xec6, 0xec6, direction::L}, {0xec8, 0xecd, direction::NSM}, + {0xed0, 0xed9, direction::L}, {0xedc, 0xedf, direction::L}, + {0xf00, 0xf17, direction::L}, {0xf18, 0xf19, direction::NSM}, + {0xf1a, 0xf34, direction::L}, {0xf35, 0xf35, direction::NSM}, + {0xf36, 0xf36, direction::L}, {0xf37, 0xf37, direction::NSM}, + {0xf38, 0xf38, direction::L}, {0xf39, 0xf39, direction::NSM}, + {0xf3a, 0xf3d, direction::ON}, {0xf3e, 0xf47, direction::L}, + {0xf49, 0xf6c, direction::L}, {0xf71, 0xf7e, direction::NSM}, + {0xf7f, 0xf7f, direction::L}, {0xf80, 0xf84, direction::NSM}, + {0xf85, 0xf85, direction::L}, {0xf86, 0xf87, direction::NSM}, + {0xf88, 0xf8c, direction::L}, {0xf8d, 0xf97, direction::NSM}, + {0xf99, 0xfbc, direction::NSM}, {0xfbe, 0xfc5, direction::L}, + {0xfc6, 0xfc6, direction::NSM}, {0xfc7, 0xfcc, direction::L}, + {0xfce, 0xfda, direction::L}, {0x1000, 0x102c, direction::L}, + {0x102d, 0x1030, direction::NSM}, {0x1031, 0x1031, direction::L}, + {0x1032, 0x1037, direction::NSM}, {0x1038, 0x1038, direction::L}, + {0x1039, 0x103a, direction::NSM}, {0x103b, 0x103c, direction::L}, + {0x103d, 0x103e, direction::NSM}, {0x103f, 0x1057, direction::L}, + {0x1058, 0x1059, direction::NSM}, {0x105a, 0x105d, direction::L}, + {0x105e, 0x1060, direction::NSM}, {0x1061, 0x1070, direction::L}, + {0x1071, 0x1074, direction::NSM}, {0x1075, 0x1081, direction::L}, + {0x1082, 0x1082, direction::NSM}, {0x1083, 0x1084, direction::L}, + {0x1085, 0x1086, direction::NSM}, {0x1087, 0x108c, direction::L}, + {0x108d, 0x108d, direction::NSM}, {0x108e, 0x109c, direction::L}, + {0x109d, 0x109d, direction::NSM}, {0x109e, 0x10c5, direction::L}, + {0x10c7, 0x10c7, direction::L}, {0x10cd, 0x10cd, direction::L}, + {0x10d0, 0x1248, direction::L}, {0x124a, 0x124d, direction::L}, + {0x1250, 0x1256, direction::L}, {0x1258, 0x1258, direction::L}, + {0x125a, 0x125d, direction::L}, {0x1260, 0x1288, direction::L}, + {0x128a, 0x128d, direction::L}, {0x1290, 0x12b0, direction::L}, + {0x12b2, 0x12b5, direction::L}, {0x12b8, 0x12be, direction::L}, + {0x12c0, 0x12c0, direction::L}, {0x12c2, 0x12c5, direction::L}, + {0x12c8, 0x12d6, direction::L}, {0x12d8, 0x1310, direction::L}, + {0x1312, 0x1315, direction::L}, {0x1318, 0x135a, direction::L}, + {0x135d, 0x135f, direction::NSM}, {0x1360, 0x137c, direction::L}, + {0x1380, 0x138f, direction::L}, {0x1390, 0x1399, direction::ON}, + {0x13a0, 0x13f5, direction::L}, {0x13f8, 0x13fd, direction::L}, + {0x1400, 0x1400, direction::ON}, {0x1401, 0x167f, direction::L}, + {0x1680, 0x1680, direction::WS}, {0x1681, 0x169a, direction::L}, + {0x169b, 0x169c, direction::ON}, {0x16a0, 0x16f8, direction::L}, + {0x1700, 0x170c, direction::L}, {0x170e, 0x1711, direction::L}, + {0x1712, 0x1714, direction::NSM}, {0x1720, 0x1731, direction::L}, + {0x1732, 0x1734, direction::NSM}, {0x1735, 0x1736, direction::L}, + {0x1740, 0x1751, direction::L}, {0x1752, 0x1753, direction::NSM}, + {0x1760, 0x176c, direction::L}, {0x176e, 0x1770, direction::L}, + {0x1772, 0x1773, direction::NSM}, {0x1780, 0x17b3, direction::L}, + {0x17b4, 0x17b5, direction::NSM}, {0x17b6, 0x17b6, direction::L}, + {0x17b7, 0x17bd, direction::NSM}, {0x17be, 0x17c5, direction::L}, + {0x17c6, 0x17c6, direction::NSM}, {0x17c7, 0x17c8, direction::L}, + {0x17c9, 0x17d3, direction::NSM}, {0x17d4, 0x17da, direction::L}, + {0x17db, 0x17db, direction::ET}, {0x17dc, 0x17dc, direction::L}, + {0x17dd, 0x17dd, direction::NSM}, {0x17e0, 0x17e9, direction::L}, + {0x17f0, 0x17f9, direction::ON}, {0x1800, 0x180a, direction::ON}, + {0x180b, 0x180d, direction::NSM}, {0x180e, 0x180e, direction::BN}, + {0x1810, 0x1819, direction::L}, {0x1820, 0x1878, direction::L}, + {0x1880, 0x1884, direction::L}, {0x1885, 0x1886, direction::NSM}, + {0x1887, 0x18a8, direction::L}, {0x18a9, 0x18a9, direction::NSM}, + {0x18aa, 0x18aa, direction::L}, {0x18b0, 0x18f5, direction::L}, + {0x1900, 0x191e, direction::L}, {0x1920, 0x1922, direction::NSM}, + {0x1923, 0x1926, direction::L}, {0x1927, 0x1928, direction::NSM}, + {0x1929, 0x192b, direction::L}, {0x1930, 0x1931, direction::L}, + {0x1932, 0x1932, direction::NSM}, {0x1933, 0x1938, direction::L}, + {0x1939, 0x193b, direction::NSM}, {0x1940, 0x1940, direction::ON}, + {0x1944, 0x1945, direction::ON}, {0x1946, 0x196d, direction::L}, + {0x1970, 0x1974, direction::L}, {0x1980, 0x19ab, direction::L}, + {0x19b0, 0x19c9, direction::L}, {0x19d0, 0x19da, direction::L}, + {0x19de, 0x19ff, direction::ON}, {0x1a00, 0x1a16, direction::L}, + {0x1a17, 0x1a18, direction::NSM}, {0x1a19, 0x1a1a, direction::L}, + {0x1a1b, 0x1a1b, direction::NSM}, {0x1a1e, 0x1a55, direction::L}, + {0x1a56, 0x1a56, direction::NSM}, {0x1a57, 0x1a57, direction::L}, + {0x1a58, 0x1a5e, direction::NSM}, {0x1a60, 0x1a60, direction::NSM}, + {0x1a61, 0x1a61, direction::L}, {0x1a62, 0x1a62, direction::NSM}, + {0x1a63, 0x1a64, direction::L}, {0x1a65, 0x1a6c, direction::NSM}, + {0x1a6d, 0x1a72, direction::L}, {0x1a73, 0x1a7c, direction::NSM}, + {0x1a7f, 0x1a7f, direction::NSM}, {0x1a80, 0x1a89, direction::L}, + {0x1a90, 0x1a99, direction::L}, {0x1aa0, 0x1aad, direction::L}, + {0x1ab0, 0x1ac0, direction::NSM}, {0x1b00, 0x1b03, direction::NSM}, + {0x1b04, 0x1b33, direction::L}, {0x1b34, 0x1b34, direction::NSM}, + {0x1b35, 0x1b35, direction::L}, {0x1b36, 0x1b3a, direction::NSM}, + {0x1b3b, 0x1b3b, direction::L}, {0x1b3c, 0x1b3c, direction::NSM}, + {0x1b3d, 0x1b41, direction::L}, {0x1b42, 0x1b42, direction::NSM}, + {0x1b43, 0x1b4b, direction::L}, {0x1b50, 0x1b6a, direction::L}, + {0x1b6b, 0x1b73, direction::NSM}, {0x1b74, 0x1b7c, direction::L}, + {0x1b80, 0x1b81, direction::NSM}, {0x1b82, 0x1ba1, direction::L}, + {0x1ba2, 0x1ba5, direction::NSM}, {0x1ba6, 0x1ba7, direction::L}, + {0x1ba8, 0x1ba9, direction::NSM}, {0x1baa, 0x1baa, direction::L}, + {0x1bab, 0x1bad, direction::NSM}, {0x1bae, 0x1be5, direction::L}, + {0x1be6, 0x1be6, direction::NSM}, {0x1be7, 0x1be7, direction::L}, + {0x1be8, 0x1be9, direction::NSM}, {0x1bea, 0x1bec, direction::L}, + {0x1bed, 0x1bed, direction::NSM}, {0x1bee, 0x1bee, direction::L}, + {0x1bef, 0x1bf1, direction::NSM}, {0x1bf2, 0x1bf3, direction::L}, + {0x1bfc, 0x1c2b, direction::L}, {0x1c2c, 0x1c33, direction::NSM}, + {0x1c34, 0x1c35, direction::L}, {0x1c36, 0x1c37, direction::NSM}, + {0x1c3b, 0x1c49, direction::L}, {0x1c4d, 0x1c88, direction::L}, + {0x1c90, 0x1cba, direction::L}, {0x1cbd, 0x1cc7, direction::L}, + {0x1cd0, 0x1cd2, direction::NSM}, {0x1cd3, 0x1cd3, direction::L}, + {0x1cd4, 0x1ce0, direction::NSM}, {0x1ce1, 0x1ce1, direction::L}, + {0x1ce2, 0x1ce8, direction::NSM}, {0x1ce9, 0x1cec, direction::L}, + {0x1ced, 0x1ced, direction::NSM}, {0x1cee, 0x1cf3, direction::L}, + {0x1cf4, 0x1cf4, direction::NSM}, {0x1cf5, 0x1cf7, direction::L}, + {0x1cf8, 0x1cf9, direction::NSM}, {0x1cfa, 0x1cfa, direction::L}, + {0x1d00, 0x1dbf, direction::L}, {0x1dc0, 0x1df9, direction::NSM}, + {0x1dfb, 0x1dff, direction::NSM}, {0x1e00, 0x1f15, direction::L}, + {0x1f18, 0x1f1d, direction::L}, {0x1f20, 0x1f45, direction::L}, + {0x1f48, 0x1f4d, direction::L}, {0x1f50, 0x1f57, direction::L}, + {0x1f59, 0x1f59, direction::L}, {0x1f5b, 0x1f5b, direction::L}, + {0x1f5d, 0x1f5d, direction::L}, {0x1f5f, 0x1f7d, direction::L}, + {0x1f80, 0x1fb4, direction::L}, {0x1fb6, 0x1fbc, direction::L}, + {0x1fbd, 0x1fbd, direction::ON}, {0x1fbe, 0x1fbe, direction::L}, + {0x1fbf, 0x1fc1, direction::ON}, {0x1fc2, 0x1fc4, direction::L}, + {0x1fc6, 0x1fcc, direction::L}, {0x1fcd, 0x1fcf, direction::ON}, + {0x1fd0, 0x1fd3, direction::L}, {0x1fd6, 0x1fdb, direction::L}, + {0x1fdd, 0x1fdf, direction::ON}, {0x1fe0, 0x1fec, direction::L}, + {0x1fed, 0x1fef, direction::ON}, {0x1ff2, 0x1ff4, direction::L}, + {0x1ff6, 0x1ffc, direction::L}, {0x1ffd, 0x1ffe, direction::ON}, + {0x2000, 0x200a, direction::WS}, {0x200b, 0x200d, direction::BN}, + {0x200e, 0x200e, direction::L}, {0x200f, 0x200f, direction::R}, + {0x2010, 0x2027, direction::ON}, {0x2028, 0x2028, direction::WS}, + {0x2029, 0x2029, direction::B}, {0x202a, 0x202a, direction::LRE}, + {0x202b, 0x202b, direction::RLE}, {0x202c, 0x202c, direction::PDF}, + {0x202d, 0x202d, direction::LRO}, {0x202e, 0x202e, direction::RLO}, + {0x202f, 0x202f, direction::CS}, {0x2030, 0x2034, direction::ET}, + {0x2035, 0x2043, direction::ON}, {0x2044, 0x2044, direction::CS}, + {0x2045, 0x205e, direction::ON}, {0x205f, 0x205f, direction::WS}, + {0x2060, 0x2064, direction::BN}, {0x2066, 0x2066, direction::LRI}, + {0x2067, 0x2067, direction::RLI}, {0x2068, 0x2068, direction::FSI}, + {0x2069, 0x2069, direction::PDI}, {0x206a, 0x206f, direction::BN}, + {0x2070, 0x2070, direction::EN}, {0x2071, 0x2071, direction::L}, + {0x2074, 0x2079, direction::EN}, {0x207a, 0x207b, direction::ES}, + {0x207c, 0x207e, direction::ON}, {0x207f, 0x207f, direction::L}, + {0x2080, 0x2089, direction::EN}, {0x208a, 0x208b, direction::ES}, + {0x208c, 0x208e, direction::ON}, {0x2090, 0x209c, direction::L}, + {0x20a0, 0x20bf, direction::ET}, {0x20d0, 0x20f0, direction::NSM}, + {0x2100, 0x2101, direction::ON}, {0x2102, 0x2102, direction::L}, + {0x2103, 0x2106, direction::ON}, {0x2107, 0x2107, direction::L}, + {0x2108, 0x2109, direction::ON}, {0x210a, 0x2113, direction::L}, + {0x2114, 0x2114, direction::ON}, {0x2115, 0x2115, direction::L}, + {0x2116, 0x2118, direction::ON}, {0x2119, 0x211d, direction::L}, + {0x211e, 0x2123, direction::ON}, {0x2124, 0x2124, direction::L}, + {0x2125, 0x2125, direction::ON}, {0x2126, 0x2126, direction::L}, + {0x2127, 0x2127, direction::ON}, {0x2128, 0x2128, direction::L}, + {0x2129, 0x2129, direction::ON}, {0x212a, 0x212d, direction::L}, + {0x212e, 0x212e, direction::ET}, {0x212f, 0x2139, direction::L}, + {0x213a, 0x213b, direction::ON}, {0x213c, 0x213f, direction::L}, + {0x2140, 0x2144, direction::ON}, {0x2145, 0x2149, direction::L}, + {0x214a, 0x214d, direction::ON}, {0x214e, 0x214f, direction::L}, + {0x2150, 0x215f, direction::ON}, {0x2160, 0x2188, direction::L}, + {0x2189, 0x218b, direction::ON}, {0x2190, 0x2211, direction::ON}, + {0x2212, 0x2212, direction::ES}, {0x2213, 0x2213, direction::ET}, + {0x2214, 0x2335, direction::ON}, {0x2336, 0x237a, direction::L}, + {0x237b, 0x2394, direction::ON}, {0x2395, 0x2395, direction::L}, + {0x2396, 0x2426, direction::ON}, {0x2440, 0x244a, direction::ON}, + {0x2460, 0x2487, direction::ON}, {0x2488, 0x249b, direction::EN}, + {0x249c, 0x24e9, direction::L}, {0x24ea, 0x26ab, direction::ON}, + {0x26ac, 0x26ac, direction::L}, {0x26ad, 0x27ff, direction::ON}, + {0x2800, 0x28ff, direction::L}, {0x2900, 0x2b73, 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0x2fd5, direction::ON}, + {0x2ff0, 0x2ffb, direction::ON}, {0x3000, 0x3000, direction::WS}, + {0x3001, 0x3004, direction::ON}, {0x3005, 0x3007, direction::L}, + {0x3008, 0x3020, direction::ON}, {0x3021, 0x3029, direction::L}, + {0x302a, 0x302d, direction::NSM}, {0x302e, 0x302f, direction::L}, + {0x3030, 0x3030, direction::ON}, {0x3031, 0x3035, direction::L}, + {0x3036, 0x3037, direction::ON}, {0x3038, 0x303c, direction::L}, + {0x303d, 0x303f, direction::ON}, {0x3041, 0x3096, direction::L}, + {0x3099, 0x309a, direction::NSM}, {0x309b, 0x309c, direction::ON}, + {0x309d, 0x309f, direction::L}, {0x30a0, 0x30a0, direction::ON}, + {0x30a1, 0x30fa, direction::L}, {0x30fb, 0x30fb, direction::ON}, + {0x30fc, 0x30ff, direction::L}, {0x3105, 0x312f, direction::L}, + {0x3131, 0x318e, direction::L}, {0x3190, 0x31bf, direction::L}, + {0x31c0, 0x31e3, direction::ON}, {0x31f0, 0x321c, direction::L}, + {0x321d, 0x321e, direction::ON}, {0x3220, 0x324f, direction::L}, + {0x3250, 0x325f, direction::ON}, {0x3260, 0x327b, direction::L}, + {0x327c, 0x327e, direction::ON}, {0x327f, 0x32b0, direction::L}, + {0x32b1, 0x32bf, direction::ON}, {0x32c0, 0x32cb, direction::L}, + {0x32cc, 0x32cf, direction::ON}, {0x32d0, 0x3376, direction::L}, + {0x3377, 0x337a, direction::ON}, {0x337b, 0x33dd, direction::L}, + {0x33de, 0x33df, direction::ON}, {0x33e0, 0x33fe, direction::L}, + {0x33ff, 0x33ff, direction::ON}, {0x3400, 0x4dbf, direction::L}, + {0x4dc0, 0x4dff, direction::ON}, {0x4e00, 0x9ffc, direction::L}, + {0xa000, 0xa48c, direction::L}, {0xa490, 0xa4c6, direction::ON}, + {0xa4d0, 0xa60c, direction::L}, {0xa60d, 0xa60f, direction::ON}, + {0xa610, 0xa62b, direction::L}, {0xa640, 0xa66e, direction::L}, + {0xa66f, 0xa672, direction::NSM}, {0xa673, 0xa673, direction::ON}, + {0xa674, 0xa67d, direction::NSM}, {0xa67e, 0xa67f, direction::ON}, + {0xa680, 0xa69d, direction::L}, {0xa69e, 0xa69f, direction::NSM}, + {0xa6a0, 0xa6ef, direction::L}, {0xa6f0, 0xa6f1, direction::NSM}, + {0xa6f2, 0xa6f7, direction::L}, {0xa700, 0xa721, direction::ON}, + {0xa722, 0xa787, direction::L}, {0xa788, 0xa788, direction::ON}, + {0xa789, 0xa7bf, direction::L}, {0xa7c2, 0xa7ca, direction::L}, + {0xa7f5, 0xa801, direction::L}, {0xa802, 0xa802, direction::NSM}, + {0xa803, 0xa805, direction::L}, {0xa806, 0xa806, direction::NSM}, + {0xa807, 0xa80a, direction::L}, {0xa80b, 0xa80b, direction::NSM}, + {0xa80c, 0xa824, direction::L}, {0xa825, 0xa826, direction::NSM}, + {0xa827, 0xa827, direction::L}, {0xa828, 0xa82b, direction::ON}, + {0xa82c, 0xa82c, direction::NSM}, {0xa830, 0xa837, direction::L}, + {0xa838, 0xa839, direction::ET}, {0xa840, 0xa873, direction::L}, + {0xa874, 0xa877, direction::ON}, {0xa880, 0xa8c3, direction::L}, + {0xa8c4, 0xa8c5, direction::NSM}, {0xa8ce, 0xa8d9, direction::L}, + {0xa8e0, 0xa8f1, direction::NSM}, {0xa8f2, 0xa8fe, direction::L}, + {0xa8ff, 0xa8ff, direction::NSM}, {0xa900, 0xa925, direction::L}, + {0xa926, 0xa92d, direction::NSM}, {0xa92e, 0xa946, direction::L}, + {0xa947, 0xa951, direction::NSM}, {0xa952, 0xa953, direction::L}, + {0xa95f, 0xa97c, direction::L}, {0xa980, 0xa982, direction::NSM}, + {0xa983, 0xa9b2, direction::L}, {0xa9b3, 0xa9b3, direction::NSM}, + {0xa9b4, 0xa9b5, direction::L}, {0xa9b6, 0xa9b9, direction::NSM}, + {0xa9ba, 0xa9bb, direction::L}, {0xa9bc, 0xa9bd, direction::NSM}, + {0xa9be, 0xa9cd, direction::L}, {0xa9cf, 0xa9d9, direction::L}, + {0xa9de, 0xa9e4, direction::L}, {0xa9e5, 0xa9e5, direction::NSM}, + {0xa9e6, 0xa9fe, direction::L}, {0xaa00, 0xaa28, direction::L}, + {0xaa29, 0xaa2e, direction::NSM}, {0xaa2f, 0xaa30, direction::L}, + {0xaa31, 0xaa32, direction::NSM}, {0xaa33, 0xaa34, direction::L}, + {0xaa35, 0xaa36, direction::NSM}, {0xaa40, 0xaa42, direction::L}, + {0xaa43, 0xaa43, direction::NSM}, {0xaa44, 0xaa4b, direction::L}, + {0xaa4c, 0xaa4c, direction::NSM}, {0xaa4d, 0xaa4d, direction::L}, + {0xaa50, 0xaa59, direction::L}, {0xaa5c, 0xaa7b, direction::L}, + {0xaa7c, 0xaa7c, direction::NSM}, {0xaa7d, 0xaaaf, direction::L}, + {0xaab0, 0xaab0, direction::NSM}, {0xaab1, 0xaab1, direction::L}, + {0xaab2, 0xaab4, direction::NSM}, {0xaab5, 0xaab6, direction::L}, + {0xaab7, 0xaab8, direction::NSM}, {0xaab9, 0xaabd, direction::L}, + {0xaabe, 0xaabf, direction::NSM}, {0xaac0, 0xaac0, direction::L}, + {0xaac1, 0xaac1, direction::NSM}, {0xaac2, 0xaac2, direction::L}, + {0xaadb, 0xaaeb, direction::L}, {0xaaec, 0xaaed, direction::NSM}, + {0xaaee, 0xaaf5, direction::L}, {0xaaf6, 0xaaf6, direction::NSM}, + {0xab01, 0xab06, direction::L}, {0xab09, 0xab0e, direction::L}, + {0xab11, 0xab16, direction::L}, {0xab20, 0xab26, direction::L}, + {0xab28, 0xab2e, direction::L}, {0xab30, 0xab69, direction::L}, + {0xab6a, 0xab6b, direction::ON}, {0xab70, 0xabe4, direction::L}, + {0xabe5, 0xabe5, direction::NSM}, {0xabe6, 0xabe7, direction::L}, + {0xabe8, 0xabe8, direction::NSM}, {0xabe9, 0xabec, direction::L}, + {0xabed, 0xabed, direction::NSM}, {0xabf0, 0xabf9, direction::L}, + {0xac00, 0xd7a3, direction::L}, {0xd7b0, 0xd7c6, direction::L}, + {0xd7cb, 0xd7fb, direction::L}, {0xd800, 0xfa6d, direction::L}, + {0xfa70, 0xfad9, direction::L}, {0xfb00, 0xfb06, direction::L}, + {0xfb13, 0xfb17, direction::L}, {0xfb1d, 0xfb1d, direction::R}, + {0xfb1e, 0xfb1e, direction::NSM}, {0xfb1f, 0xfb28, direction::R}, + {0xfb29, 0xfb29, direction::ES}, {0xfb2a, 0xfb36, direction::R}, + {0xfb38, 0xfb3c, direction::R}, {0xfb3e, 0xfb3e, direction::R}, + {0xfb40, 0xfb41, direction::R}, {0xfb43, 0xfb44, direction::R}, + {0xfb46, 0xfb4f, direction::R}, {0xfb50, 0xfbc1, direction::AL}, + {0xfbd3, 0xfd3d, direction::AL}, {0xfd3e, 0xfd3f, direction::ON}, + {0xfd50, 0xfd8f, direction::AL}, {0xfd92, 0xfdc7, direction::AL}, + {0xfdf0, 0xfdfc, direction::AL}, {0xfdfd, 0xfdfd, direction::ON}, + {0xfe00, 0xfe0f, direction::NSM}, {0xfe10, 0xfe19, direction::ON}, + {0xfe20, 0xfe2f, direction::NSM}, {0xfe30, 0xfe4f, direction::ON}, + {0xfe50, 0xfe50, direction::CS}, {0xfe51, 0xfe51, direction::ON}, + {0xfe52, 0xfe52, direction::CS}, {0xfe54, 0xfe54, direction::ON}, + {0xfe55, 0xfe55, direction::CS}, {0xfe56, 0xfe5e, direction::ON}, + {0xfe5f, 0xfe5f, direction::ET}, {0xfe60, 0xfe61, direction::ON}, + {0xfe62, 0xfe63, direction::ES}, {0xfe64, 0xfe66, direction::ON}, + {0xfe68, 0xfe68, direction::ON}, {0xfe69, 0xfe6a, direction::ET}, + {0xfe6b, 0xfe6b, direction::ON}, {0xfe70, 0xfe74, direction::AL}, + {0xfe76, 0xfefc, direction::AL}, {0xfeff, 0xfeff, direction::BN}, + {0xff01, 0xff02, direction::ON}, {0xff03, 0xff05, direction::ET}, + {0xff06, 0xff0a, direction::ON}, {0xff0b, 0xff0b, direction::ES}, + {0xff0c, 0xff0c, direction::CS}, {0xff0d, 0xff0d, direction::ES}, + {0xff0e, 0xff0f, direction::CS}, {0xff10, 0xff19, direction::EN}, + {0xff1a, 0xff1a, direction::CS}, {0xff1b, 0xff20, direction::ON}, + {0xff21, 0xff3a, direction::L}, {0xff3b, 0xff40, direction::ON}, + {0xff41, 0xff5a, direction::L}, {0xff5b, 0xff65, direction::ON}, + {0xff66, 0xffbe, direction::L}, {0xffc2, 0xffc7, direction::L}, + {0xffca, 0xffcf, direction::L}, {0xffd2, 0xffd7, direction::L}, + {0xffda, 0xffdc, direction::L}, {0xffe0, 0xffe1, direction::ET}, + {0xffe2, 0xffe4, direction::ON}, {0xffe5, 0xffe6, direction::ET}, + {0xffe8, 0xffee, direction::ON}, {0xfff9, 0xfffd, direction::ON}, + {0x10000, 0x1000b, direction::L}, {0x1000d, 0x10026, direction::L}, + {0x10028, 0x1003a, direction::L}, {0x1003c, 0x1003d, direction::L}, + {0x1003f, 0x1004d, direction::L}, {0x10050, 0x1005d, direction::L}, + {0x10080, 0x100fa, direction::L}, {0x10100, 0x10100, direction::L}, + {0x10101, 0x10101, direction::ON}, {0x10102, 0x10102, direction::L}, + {0x10107, 0x10133, direction::L}, {0x10137, 0x1013f, direction::L}, + {0x10140, 0x1018c, direction::ON}, {0x1018d, 0x1018e, direction::L}, + {0x10190, 0x1019c, direction::ON}, {0x101a0, 0x101a0, direction::ON}, + {0x101d0, 0x101fc, direction::L}, {0x101fd, 0x101fd, direction::NSM}, + {0x10280, 0x1029c, direction::L}, {0x102a0, 0x102d0, direction::L}, + {0x102e0, 0x102e0, direction::NSM}, {0x102e1, 0x102fb, direction::EN}, + {0x10300, 0x10323, direction::L}, {0x1032d, 0x1034a, direction::L}, + {0x10350, 0x10375, direction::L}, {0x10376, 0x1037a, direction::NSM}, + {0x10380, 0x1039d, direction::L}, {0x1039f, 0x103c3, direction::L}, + {0x103c8, 0x103d5, direction::L}, {0x10400, 0x1049d, direction::L}, + {0x104a0, 0x104a9, direction::L}, {0x104b0, 0x104d3, direction::L}, + {0x104d8, 0x104fb, direction::L}, {0x10500, 0x10527, direction::L}, + {0x10530, 0x10563, direction::L}, {0x1056f, 0x1056f, direction::L}, + {0x10600, 0x10736, direction::L}, {0x10740, 0x10755, direction::L}, + {0x10760, 0x10767, direction::L}, {0x10800, 0x10805, direction::R}, + {0x10808, 0x10808, direction::R}, {0x1080a, 0x10835, direction::R}, + {0x10837, 0x10838, direction::R}, {0x1083c, 0x1083c, direction::R}, + {0x1083f, 0x10855, direction::R}, {0x10857, 0x1089e, direction::R}, + {0x108a7, 0x108af, direction::R}, {0x108e0, 0x108f2, direction::R}, + {0x108f4, 0x108f5, direction::R}, {0x108fb, 0x1091b, direction::R}, + {0x1091f, 0x1091f, direction::ON}, {0x10920, 0x10939, direction::R}, + {0x1093f, 0x1093f, direction::R}, {0x10980, 0x109b7, direction::R}, + {0x109bc, 0x109cf, direction::R}, {0x109d2, 0x10a00, direction::R}, + {0x10a01, 0x10a03, direction::NSM}, {0x10a05, 0x10a06, direction::NSM}, + {0x10a0c, 0x10a0f, direction::NSM}, {0x10a10, 0x10a13, direction::R}, + {0x10a15, 0x10a17, direction::R}, {0x10a19, 0x10a35, direction::R}, + {0x10a38, 0x10a3a, direction::NSM}, {0x10a3f, 0x10a3f, direction::NSM}, + {0x10a40, 0x10a48, direction::R}, {0x10a50, 0x10a58, direction::R}, + {0x10a60, 0x10a9f, direction::R}, {0x10ac0, 0x10ae4, direction::R}, + {0x10ae5, 0x10ae6, direction::NSM}, {0x10aeb, 0x10af6, direction::R}, + {0x10b00, 0x10b35, direction::R}, {0x10b39, 0x10b3f, direction::ON}, + {0x10b40, 0x10b55, direction::R}, {0x10b58, 0x10b72, direction::R}, + {0x10b78, 0x10b91, direction::R}, {0x10b99, 0x10b9c, direction::R}, + {0x10ba9, 0x10baf, direction::R}, {0x10c00, 0x10c48, direction::R}, + {0x10c80, 0x10cb2, direction::R}, {0x10cc0, 0x10cf2, direction::R}, + {0x10cfa, 0x10cff, direction::R}, {0x10d00, 0x10d23, direction::AL}, + {0x10d24, 0x10d27, direction::NSM}, {0x10d30, 0x10d39, direction::AN}, + {0x10e60, 0x10e7e, direction::AN}, {0x10e80, 0x10ea9, direction::R}, + {0x10eab, 0x10eac, direction::NSM}, {0x10ead, 0x10ead, direction::R}, + {0x10eb0, 0x10eb1, direction::R}, {0x10f00, 0x10f27, direction::R}, + {0x10f30, 0x10f45, direction::AL}, {0x10f46, 0x10f50, direction::NSM}, + {0x10f51, 0x10f59, direction::AL}, {0x10fb0, 0x10fcb, direction::R}, + {0x10fe0, 0x10ff6, direction::R}, {0x11000, 0x11000, direction::L}, + {0x11001, 0x11001, direction::NSM}, {0x11002, 0x11037, direction::L}, + {0x11038, 0x11046, direction::NSM}, {0x11047, 0x1104d, direction::L}, + {0x11052, 0x11065, direction::ON}, {0x11066, 0x1106f, direction::L}, + {0x1107f, 0x11081, direction::NSM}, {0x11082, 0x110b2, direction::L}, + {0x110b3, 0x110b6, direction::NSM}, {0x110b7, 0x110b8, direction::L}, + {0x110b9, 0x110ba, direction::NSM}, {0x110bb, 0x110c1, direction::L}, + {0x110cd, 0x110cd, direction::L}, {0x110d0, 0x110e8, direction::L}, + {0x110f0, 0x110f9, direction::L}, {0x11100, 0x11102, direction::NSM}, + {0x11103, 0x11126, direction::L}, {0x11127, 0x1112b, direction::NSM}, + {0x1112c, 0x1112c, direction::L}, {0x1112d, 0x11134, direction::NSM}, + {0x11136, 0x11147, direction::L}, {0x11150, 0x11172, direction::L}, + {0x11173, 0x11173, direction::NSM}, {0x11174, 0x11176, direction::L}, + {0x11180, 0x11181, direction::NSM}, {0x11182, 0x111b5, direction::L}, + {0x111b6, 0x111be, direction::NSM}, {0x111bf, 0x111c8, direction::L}, + {0x111c9, 0x111cc, direction::NSM}, {0x111cd, 0x111ce, direction::L}, + {0x111cf, 0x111cf, direction::NSM}, {0x111d0, 0x111df, direction::L}, + {0x111e1, 0x111f4, direction::L}, {0x11200, 0x11211, direction::L}, + {0x11213, 0x1122e, direction::L}, {0x1122f, 0x11231, direction::NSM}, + {0x11232, 0x11233, direction::L}, {0x11234, 0x11234, direction::NSM}, + {0x11235, 0x11235, direction::L}, {0x11236, 0x11237, direction::NSM}, + {0x11238, 0x1123d, direction::L}, {0x1123e, 0x1123e, direction::NSM}, + {0x11280, 0x11286, direction::L}, {0x11288, 0x11288, direction::L}, + {0x1128a, 0x1128d, direction::L}, {0x1128f, 0x1129d, direction::L}, + {0x1129f, 0x112a9, direction::L}, {0x112b0, 0x112de, direction::L}, + {0x112df, 0x112df, direction::NSM}, {0x112e0, 0x112e2, direction::L}, + {0x112e3, 0x112ea, direction::NSM}, {0x112f0, 0x112f9, direction::L}, + {0x11300, 0x11301, direction::NSM}, {0x11302, 0x11303, direction::L}, + {0x11305, 0x1130c, direction::L}, {0x1130f, 0x11310, direction::L}, + {0x11313, 0x11328, direction::L}, {0x1132a, 0x11330, direction::L}, + {0x11332, 0x11333, direction::L}, {0x11335, 0x11339, direction::L}, + {0x1133b, 0x1133c, direction::NSM}, {0x1133d, 0x1133f, direction::L}, + {0x11340, 0x11340, direction::NSM}, {0x11341, 0x11344, direction::L}, + {0x11347, 0x11348, direction::L}, {0x1134b, 0x1134d, direction::L}, + {0x11350, 0x11350, direction::L}, {0x11357, 0x11357, direction::L}, + {0x1135d, 0x11363, direction::L}, {0x11366, 0x1136c, direction::NSM}, + {0x11370, 0x11374, direction::NSM}, {0x11400, 0x11437, direction::L}, + {0x11438, 0x1143f, direction::NSM}, {0x11440, 0x11441, direction::L}, + {0x11442, 0x11444, direction::NSM}, {0x11445, 0x11445, direction::L}, + {0x11446, 0x11446, direction::NSM}, {0x11447, 0x1145b, direction::L}, + {0x1145d, 0x1145d, direction::L}, {0x1145e, 0x1145e, direction::NSM}, + {0x1145f, 0x11461, direction::L}, {0x11480, 0x114b2, direction::L}, + {0x114b3, 0x114b8, direction::NSM}, {0x114b9, 0x114b9, direction::L}, + {0x114ba, 0x114ba, direction::NSM}, {0x114bb, 0x114be, direction::L}, + {0x114bf, 0x114c0, direction::NSM}, {0x114c1, 0x114c1, direction::L}, + {0x114c2, 0x114c3, direction::NSM}, {0x114c4, 0x114c7, direction::L}, + {0x114d0, 0x114d9, direction::L}, {0x11580, 0x115b1, direction::L}, + {0x115b2, 0x115b5, direction::NSM}, {0x115b8, 0x115bb, direction::L}, + {0x115bc, 0x115bd, direction::NSM}, {0x115be, 0x115be, direction::L}, + {0x115bf, 0x115c0, direction::NSM}, {0x115c1, 0x115db, direction::L}, + {0x115dc, 0x115dd, direction::NSM}, {0x11600, 0x11632, direction::L}, + {0x11633, 0x1163a, direction::NSM}, {0x1163b, 0x1163c, direction::L}, + {0x1163d, 0x1163d, direction::NSM}, {0x1163e, 0x1163e, direction::L}, + {0x1163f, 0x11640, direction::NSM}, {0x11641, 0x11644, direction::L}, + {0x11650, 0x11659, direction::L}, {0x11660, 0x1166c, direction::ON}, + {0x11680, 0x116aa, direction::L}, {0x116ab, 0x116ab, direction::NSM}, + {0x116ac, 0x116ac, direction::L}, {0x116ad, 0x116ad, direction::NSM}, + {0x116ae, 0x116af, direction::L}, {0x116b0, 0x116b5, direction::NSM}, + {0x116b6, 0x116b6, direction::L}, {0x116b7, 0x116b7, direction::NSM}, + {0x116b8, 0x116b8, direction::L}, {0x116c0, 0x116c9, direction::L}, + {0x11700, 0x1171a, direction::L}, {0x1171d, 0x1171f, direction::NSM}, + {0x11720, 0x11721, direction::L}, {0x11722, 0x11725, direction::NSM}, + {0x11726, 0x11726, direction::L}, {0x11727, 0x1172b, direction::NSM}, + {0x11730, 0x1173f, direction::L}, {0x11800, 0x1182e, direction::L}, + {0x1182f, 0x11837, direction::NSM}, {0x11838, 0x11838, direction::L}, + {0x11839, 0x1183a, direction::NSM}, {0x1183b, 0x1183b, direction::L}, + {0x118a0, 0x118f2, direction::L}, {0x118ff, 0x11906, direction::L}, + {0x11909, 0x11909, direction::L}, {0x1190c, 0x11913, direction::L}, + {0x11915, 0x11916, direction::L}, {0x11918, 0x11935, direction::L}, + {0x11937, 0x11938, direction::L}, {0x1193b, 0x1193c, direction::NSM}, + {0x1193d, 0x1193d, direction::L}, {0x1193e, 0x1193e, direction::NSM}, + {0x1193f, 0x11942, direction::L}, {0x11943, 0x11943, direction::NSM}, + {0x11944, 0x11946, direction::L}, {0x11950, 0x11959, direction::L}, + {0x119a0, 0x119a7, direction::L}, {0x119aa, 0x119d3, direction::L}, + {0x119d4, 0x119d7, direction::NSM}, {0x119da, 0x119db, direction::NSM}, + {0x119dc, 0x119df, direction::L}, {0x119e0, 0x119e0, direction::NSM}, + {0x119e1, 0x119e4, direction::L}, {0x11a00, 0x11a00, direction::L}, + {0x11a01, 0x11a06, direction::NSM}, {0x11a07, 0x11a08, direction::L}, + {0x11a09, 0x11a0a, direction::NSM}, {0x11a0b, 0x11a32, direction::L}, + {0x11a33, 0x11a38, direction::NSM}, {0x11a39, 0x11a3a, direction::L}, + {0x11a3b, 0x11a3e, direction::NSM}, {0x11a3f, 0x11a46, direction::L}, + {0x11a47, 0x11a47, direction::NSM}, {0x11a50, 0x11a50, direction::L}, + {0x11a51, 0x11a56, direction::NSM}, {0x11a57, 0x11a58, direction::L}, + {0x11a59, 0x11a5b, direction::NSM}, {0x11a5c, 0x11a89, direction::L}, + {0x11a8a, 0x11a96, direction::NSM}, {0x11a97, 0x11a97, direction::L}, + {0x11a98, 0x11a99, direction::NSM}, {0x11a9a, 0x11aa2, direction::L}, + {0x11ac0, 0x11af8, direction::L}, {0x11c00, 0x11c08, direction::L}, + {0x11c0a, 0x11c2f, direction::L}, {0x11c30, 0x11c36, direction::NSM}, + {0x11c38, 0x11c3d, direction::NSM}, {0x11c3e, 0x11c45, direction::L}, + {0x11c50, 0x11c6c, direction::L}, {0x11c70, 0x11c8f, direction::L}, + {0x11c92, 0x11ca7, direction::NSM}, {0x11ca9, 0x11ca9, direction::L}, + {0x11caa, 0x11cb0, direction::NSM}, {0x11cb1, 0x11cb1, direction::L}, + {0x11cb2, 0x11cb3, direction::NSM}, {0x11cb4, 0x11cb4, direction::L}, + {0x11cb5, 0x11cb6, direction::NSM}, {0x11d00, 0x11d06, direction::L}, + {0x11d08, 0x11d09, direction::L}, {0x11d0b, 0x11d30, direction::L}, + {0x11d31, 0x11d36, direction::NSM}, {0x11d3a, 0x11d3a, direction::NSM}, + {0x11d3c, 0x11d3d, direction::NSM}, {0x11d3f, 0x11d45, direction::NSM}, + {0x11d46, 0x11d46, direction::L}, {0x11d47, 0x11d47, direction::NSM}, + {0x11d50, 0x11d59, direction::L}, {0x11d60, 0x11d65, direction::L}, + {0x11d67, 0x11d68, direction::L}, {0x11d6a, 0x11d8e, direction::L}, + {0x11d90, 0x11d91, direction::NSM}, {0x11d93, 0x11d94, direction::L}, + {0x11d95, 0x11d95, direction::NSM}, {0x11d96, 0x11d96, direction::L}, + {0x11d97, 0x11d97, direction::NSM}, {0x11d98, 0x11d98, direction::L}, + {0x11da0, 0x11da9, direction::L}, {0x11ee0, 0x11ef2, direction::L}, + {0x11ef3, 0x11ef4, direction::NSM}, {0x11ef5, 0x11ef8, direction::L}, + {0x11fb0, 0x11fb0, direction::L}, {0x11fc0, 0x11fd4, direction::L}, + {0x11fd5, 0x11fdc, direction::ON}, {0x11fdd, 0x11fe0, direction::ET}, + {0x11fe1, 0x11ff1, direction::ON}, {0x11fff, 0x12399, direction::L}, + {0x12400, 0x1246e, direction::L}, {0x12470, 0x12474, direction::L}, + {0x12480, 0x12543, direction::L}, {0x13000, 0x1342e, direction::L}, + {0x13430, 0x13438, direction::L}, {0x14400, 0x14646, direction::L}, + {0x16800, 0x16a38, direction::L}, {0x16a40, 0x16a5e, direction::L}, + {0x16a60, 0x16a69, direction::L}, {0x16a6e, 0x16a6f, direction::L}, + {0x16ad0, 0x16aed, direction::L}, {0x16af0, 0x16af4, direction::NSM}, + {0x16af5, 0x16af5, direction::L}, {0x16b00, 0x16b2f, direction::L}, + {0x16b30, 0x16b36, direction::NSM}, {0x16b37, 0x16b45, direction::L}, + {0x16b50, 0x16b59, direction::L}, {0x16b5b, 0x16b61, direction::L}, + {0x16b63, 0x16b77, direction::L}, {0x16b7d, 0x16b8f, direction::L}, + {0x16e40, 0x16e9a, direction::L}, {0x16f00, 0x16f4a, direction::L}, + {0x16f4f, 0x16f4f, direction::NSM}, {0x16f50, 0x16f87, direction::L}, + {0x16f8f, 0x16f92, direction::NSM}, {0x16f93, 0x16f9f, direction::L}, + {0x16fe0, 0x16fe1, direction::L}, {0x16fe2, 0x16fe2, direction::ON}, + {0x16fe3, 0x16fe3, direction::L}, {0x16fe4, 0x16fe4, direction::NSM}, + {0x16ff0, 0x16ff1, direction::L}, {0x17000, 0x187f7, direction::L}, + {0x18800, 0x18cd5, direction::L}, {0x18d00, 0x18d08, direction::L}, + {0x1b000, 0x1b11e, direction::L}, {0x1b150, 0x1b152, direction::L}, + {0x1b164, 0x1b167, direction::L}, {0x1b170, 0x1b2fb, direction::L}, + {0x1bc00, 0x1bc6a, direction::L}, {0x1bc70, 0x1bc7c, direction::L}, + {0x1bc80, 0x1bc88, direction::L}, {0x1bc90, 0x1bc99, direction::L}, + {0x1bc9c, 0x1bc9c, direction::L}, {0x1bc9d, 0x1bc9e, direction::NSM}, + {0x1bc9f, 0x1bc9f, direction::L}, {0x1bca0, 0x1bca3, direction::BN}, + {0x1d000, 0x1d0f5, direction::L}, {0x1d100, 0x1d126, direction::L}, + {0x1d129, 0x1d166, direction::L}, {0x1d167, 0x1d169, direction::NSM}, + {0x1d16a, 0x1d172, direction::L}, {0x1d173, 0x1d17a, direction::BN}, + {0x1d17b, 0x1d182, direction::NSM}, {0x1d183, 0x1d184, direction::L}, + {0x1d185, 0x1d18b, direction::NSM}, {0x1d18c, 0x1d1a9, direction::L}, + {0x1d1aa, 0x1d1ad, direction::NSM}, {0x1d1ae, 0x1d1e8, direction::L}, + {0x1d200, 0x1d241, direction::ON}, {0x1d242, 0x1d244, direction::NSM}, + {0x1d245, 0x1d245, direction::ON}, {0x1d2e0, 0x1d2f3, direction::L}, + {0x1d300, 0x1d356, direction::ON}, {0x1d360, 0x1d378, direction::L}, + {0x1d400, 0x1d454, direction::L}, {0x1d456, 0x1d49c, direction::L}, + {0x1d49e, 0x1d49f, direction::L}, {0x1d4a2, 0x1d4a2, direction::L}, + {0x1d4a5, 0x1d4a6, direction::L}, {0x1d4a9, 0x1d4ac, direction::L}, + {0x1d4ae, 0x1d4b9, direction::L}, {0x1d4bb, 0x1d4bb, direction::L}, + {0x1d4bd, 0x1d4c3, direction::L}, {0x1d4c5, 0x1d505, direction::L}, + {0x1d507, 0x1d50a, direction::L}, {0x1d50d, 0x1d514, direction::L}, + {0x1d516, 0x1d51c, direction::L}, {0x1d51e, 0x1d539, direction::L}, + {0x1d53b, 0x1d53e, direction::L}, {0x1d540, 0x1d544, direction::L}, + {0x1d546, 0x1d546, direction::L}, {0x1d54a, 0x1d550, direction::L}, + {0x1d552, 0x1d6a5, direction::L}, {0x1d6a8, 0x1d6da, direction::L}, + {0x1d6db, 0x1d6db, direction::ON}, {0x1d6dc, 0x1d714, direction::L}, + {0x1d715, 0x1d715, direction::ON}, {0x1d716, 0x1d74e, direction::L}, + {0x1d74f, 0x1d74f, direction::ON}, {0x1d750, 0x1d788, direction::L}, + {0x1d789, 0x1d789, direction::ON}, {0x1d78a, 0x1d7c2, direction::L}, + {0x1d7c3, 0x1d7c3, direction::ON}, {0x1d7c4, 0x1d7cb, direction::L}, + {0x1d7ce, 0x1d7ff, direction::EN}, {0x1d800, 0x1d9ff, direction::L}, + {0x1da00, 0x1da36, direction::NSM}, {0x1da37, 0x1da3a, direction::L}, + {0x1da3b, 0x1da6c, direction::NSM}, {0x1da6d, 0x1da74, direction::L}, + {0x1da75, 0x1da75, direction::NSM}, {0x1da76, 0x1da83, direction::L}, + {0x1da84, 0x1da84, direction::NSM}, {0x1da85, 0x1da8b, direction::L}, + {0x1da9b, 0x1da9f, direction::NSM}, {0x1daa1, 0x1daaf, direction::NSM}, + {0x1e000, 0x1e006, direction::NSM}, {0x1e008, 0x1e018, direction::NSM}, + {0x1e01b, 0x1e021, direction::NSM}, {0x1e023, 0x1e024, direction::NSM}, + {0x1e026, 0x1e02a, direction::NSM}, {0x1e100, 0x1e12c, direction::L}, + {0x1e130, 0x1e136, direction::NSM}, {0x1e137, 0x1e13d, direction::L}, + {0x1e140, 0x1e149, direction::L}, {0x1e14e, 0x1e14f, direction::L}, + {0x1e2c0, 0x1e2eb, direction::L}, {0x1e2ec, 0x1e2ef, direction::NSM}, + {0x1e2f0, 0x1e2f9, direction::L}, {0x1e2ff, 0x1e2ff, direction::ET}, + {0x1e800, 0x1e8c4, direction::R}, {0x1e8c7, 0x1e8cf, direction::R}, + {0x1e8d0, 0x1e8d6, direction::NSM}, {0x1e900, 0x1e943, direction::R}, + {0x1e944, 0x1e94a, direction::NSM}, {0x1e94b, 0x1e94b, direction::R}, + {0x1e950, 0x1e959, direction::R}, {0x1e95e, 0x1e95f, direction::R}, + {0x1ec71, 0x1ecb4, direction::AL}, {0x1ed01, 0x1ed3d, direction::AL}, + {0x1ee00, 0x1ee03, direction::AL}, {0x1ee05, 0x1ee1f, direction::AL}, + {0x1ee21, 0x1ee22, direction::AL}, {0x1ee24, 0x1ee24, direction::AL}, + {0x1ee27, 0x1ee27, direction::AL}, {0x1ee29, 0x1ee32, direction::AL}, + {0x1ee34, 0x1ee37, direction::AL}, {0x1ee39, 0x1ee39, direction::AL}, + {0x1ee3b, 0x1ee3b, direction::AL}, {0x1ee42, 0x1ee42, direction::AL}, + {0x1ee47, 0x1ee47, direction::AL}, {0x1ee49, 0x1ee49, direction::AL}, + {0x1ee4b, 0x1ee4b, direction::AL}, {0x1ee4d, 0x1ee4f, direction::AL}, + {0x1ee51, 0x1ee52, direction::AL}, {0x1ee54, 0x1ee54, direction::AL}, + {0x1ee57, 0x1ee57, direction::AL}, {0x1ee59, 0x1ee59, direction::AL}, + {0x1ee5b, 0x1ee5b, direction::AL}, {0x1ee5d, 0x1ee5d, direction::AL}, + {0x1ee5f, 0x1ee5f, direction::AL}, {0x1ee61, 0x1ee62, direction::AL}, + {0x1ee64, 0x1ee64, direction::AL}, {0x1ee67, 0x1ee6a, direction::AL}, + {0x1ee6c, 0x1ee72, direction::AL}, {0x1ee74, 0x1ee77, direction::AL}, + {0x1ee79, 0x1ee7c, direction::AL}, {0x1ee7e, 0x1ee7e, direction::AL}, + {0x1ee80, 0x1ee89, direction::AL}, {0x1ee8b, 0x1ee9b, direction::AL}, + {0x1eea1, 0x1eea3, direction::AL}, {0x1eea5, 0x1eea9, direction::AL}, + {0x1eeab, 0x1eebb, direction::AL}, {0x1eef0, 0x1eef1, direction::ON}, + {0x1f000, 0x1f02b, direction::ON}, {0x1f030, 0x1f093, direction::ON}, + {0x1f0a0, 0x1f0ae, direction::ON}, {0x1f0b1, 0x1f0bf, direction::ON}, + {0x1f0c1, 0x1f0cf, direction::ON}, {0x1f0d1, 0x1f0f5, direction::ON}, + {0x1f100, 0x1f10a, direction::EN}, {0x1f10b, 0x1f10f, direction::ON}, + {0x1f110, 0x1f12e, direction::L}, {0x1f12f, 0x1f12f, direction::ON}, + {0x1f130, 0x1f169, direction::L}, {0x1f16a, 0x1f16f, direction::ON}, + {0x1f170, 0x1f1ac, direction::L}, {0x1f1ad, 0x1f1ad, direction::ON}, + {0x1f1e6, 0x1f202, direction::L}, {0x1f210, 0x1f23b, direction::L}, + {0x1f240, 0x1f248, direction::L}, {0x1f250, 0x1f251, direction::L}, + {0x1f260, 0x1f265, direction::ON}, {0x1f300, 0x1f6d7, direction::ON}, + {0x1f6e0, 0x1f6ec, direction::ON}, {0x1f6f0, 0x1f6fc, direction::ON}, + {0x1f700, 0x1f773, direction::ON}, {0x1f780, 0x1f7d8, direction::ON}, + {0x1f7e0, 0x1f7eb, direction::ON}, {0x1f800, 0x1f80b, direction::ON}, + {0x1f810, 0x1f847, direction::ON}, {0x1f850, 0x1f859, direction::ON}, + {0x1f860, 0x1f887, direction::ON}, {0x1f890, 0x1f8ad, direction::ON}, + {0x1f8b0, 0x1f8b1, direction::ON}, {0x1f900, 0x1f978, direction::ON}, + {0x1f97a, 0x1f9cb, direction::ON}, {0x1f9cd, 0x1fa53, direction::ON}, + {0x1fa60, 0x1fa6d, direction::ON}, {0x1fa70, 0x1fa74, direction::ON}, + {0x1fa78, 0x1fa7a, direction::ON}, {0x1fa80, 0x1fa86, direction::ON}, + {0x1fa90, 0x1faa8, direction::ON}, {0x1fab0, 0x1fab6, direction::ON}, + {0x1fac0, 0x1fac2, direction::ON}, {0x1fad0, 0x1fad6, direction::ON}, + {0x1fb00, 0x1fb92, direction::ON}, {0x1fb94, 0x1fbca, direction::ON}, + {0x1fbf0, 0x1fbf9, direction::EN}, {0x20000, 0x2a6dd, direction::L}, + {0x2a700, 0x2b734, direction::L}, {0x2b740, 0x2b81d, direction::L}, + {0x2b820, 0x2cea1, direction::L}, {0x2ceb0, 0x2ebe0, direction::L}, + {0x2f800, 0x2fa1d, direction::L}, {0x30000, 0x3134a, direction::L}, + {0xe0001, 0xe0001, direction::BN}, {0xe0020, 0xe007f, direction::BN}, + {0xe0100, 0xe01ef, direction::NSM}, {0xf0000, 0xffffd, direction::L}, + {0x100000, 0x10fffd, direction::L}}; + +// CheckJoiners and CheckBidi are true for URL specification. + +inline static direction find_direction(uint32_t code_point) noexcept { + auto it = std::lower_bound( + std::begin(dir_table), std::end(dir_table), code_point, + [](const directions& d, uint32_t c) { return d.final_code < c; }); + + // next check is almost surely in vain, but we use it for safety. + if (it == std::end(dir_table)) { + return direction::NONE; + } + // We have that d.final_code >= c. + if (code_point >= it->start_code) { + return it->direct; + } + return direction::NONE; +} + +inline static size_t find_last_not_of_nsm( + const std::u32string_view label) noexcept { + for (int i = label.size() - 1; i >= 0; i--) + if (find_direction(label[i]) != direction::NSM) return i; + + return std::u32string_view::npos; +} + +// An RTL label is a label that contains at least one character of type R, AL, +// or AN. https://www.rfc-editor.org/rfc/rfc5893#section-2 +inline static bool is_rtl_label(const std::u32string_view label) noexcept { + const size_t mask = + (1u << direction::R) | (1u << direction::AL) | (1u << direction::AN); + + size_t directions = 0; + for (size_t i = 0; i < label.size(); i++) { + directions |= 1u << find_direction(label[i]); + } + return (directions & mask) != 0; +} + +bool is_label_valid(const std::u32string_view label) { + if (label.empty()) { + return true; + } + + /////////////// + // We have a normalization step which ensures that we are in NFC. + // If we receive punycode, we normalize and check that the normalized + // version matches the original. + // -------------------------------------- + // The label must be in Unicode Normalization Form NFC. + + // Current URL standard indicatest that CheckHyphens is set to false. + // --------------------------------------- + // If CheckHyphens, the label must not contain a U+002D HYPHEN-MINUS character + // in both the third and fourth positions. If CheckHyphens, the label must + // neither begin nor end with a U+002D HYPHEN-MINUS character. + + // This is not necessary because we segment the + // labels by '.'. + // --------------------------------------- + // The label must not contain a U+002E ( . ) FULL STOP. + // if (label.find('.') != std::string_view::npos) return false; + + // The label must not begin with a combining mark, that is: + // General_Category=Mark. + constexpr static uint32_t combining[] = { + 0x300, 0x301, 0x302, 0x303, 0x304, 0x305, 0x306, 0x307, + 0x308, 0x309, 0x30a, 0x30b, 0x30c, 0x30d, 0x30e, 0x30f, + 0x310, 0x311, 0x312, 0x313, 0x314, 0x315, 0x316, 0x317, + 0x318, 0x319, 0x31a, 0x31b, 0x31c, 0x31d, 0x31e, 0x31f, + 0x320, 0x321, 0x322, 0x323, 0x324, 0x325, 0x326, 0x327, + 0x328, 0x329, 0x32a, 0x32b, 0x32c, 0x32d, 0x32e, 0x32f, + 0x330, 0x331, 0x332, 0x333, 0x334, 0x335, 0x336, 0x337, + 0x338, 0x339, 0x33a, 0x33b, 0x33c, 0x33d, 0x33e, 0x33f, + 0x340, 0x341, 0x342, 0x343, 0x344, 0x345, 0x346, 0x347, + 0x348, 0x349, 0x34a, 0x34b, 0x34c, 0x34d, 0x34e, 0x34f, + 0x350, 0x351, 0x352, 0x353, 0x354, 0x355, 0x356, 0x357, + 0x358, 0x359, 0x35a, 0x35b, 0x35c, 0x35d, 0x35e, 0x35f, + 0x360, 0x361, 0x362, 0x363, 0x364, 0x365, 0x366, 0x367, + 0x368, 0x369, 0x36a, 0x36b, 0x36c, 0x36d, 0x36e, 0x36f, + 0x483, 0x484, 0x485, 0x486, 0x487, 0x488, 0x489, 0x591, + 0x592, 0x593, 0x594, 0x595, 0x596, 0x597, 0x598, 0x599, + 0x59a, 0x59b, 0x59c, 0x59d, 0x59e, 0x59f, 0x5a0, 0x5a1, + 0x5a2, 0x5a3, 0x5a4, 0x5a5, 0x5a6, 0x5a7, 0x5a8, 0x5a9, + 0x5aa, 0x5ab, 0x5ac, 0x5ad, 0x5ae, 0x5af, 0x5b0, 0x5b1, + 0x5b2, 0x5b3, 0x5b4, 0x5b5, 0x5b6, 0x5b7, 0x5b8, 0x5b9, + 0x5ba, 0x5bb, 0x5bc, 0x5bd, 0x5bf, 0x5c1, 0x5c2, 0x5c4, + 0x5c5, 0x5c7, 0x610, 0x611, 0x612, 0x613, 0x614, 0x615, + 0x616, 0x617, 0x618, 0x619, 0x61a, 0x64b, 0x64c, 0x64d, + 0x64e, 0x64f, 0x650, 0x651, 0x652, 0x653, 0x654, 0x655, + 0x656, 0x657, 0x658, 0x659, 0x65a, 0x65b, 0x65c, 0x65d, + 0x65e, 0x65f, 0x670, 0x6d6, 0x6d7, 0x6d8, 0x6d9, 0x6da, + 0x6db, 0x6dc, 0x6df, 0x6e0, 0x6e1, 0x6e2, 0x6e3, 0x6e4, + 0x6e7, 0x6e8, 0x6ea, 0x6eb, 0x6ec, 0x6ed, 0x711, 0x730, + 0x731, 0x732, 0x733, 0x734, 0x735, 0x736, 0x737, 0x738, + 0x739, 0x73a, 0x73b, 0x73c, 0x73d, 0x73e, 0x73f, 0x740, + 0x741, 0x742, 0x743, 0x744, 0x745, 0x746, 0x747, 0x748, + 0x749, 0x74a, 0x7a6, 0x7a7, 0x7a8, 0x7a9, 0x7aa, 0x7ab, + 0x7ac, 0x7ad, 0x7ae, 0x7af, 0x7b0, 0x7eb, 0x7ec, 0x7ed, + 0x7ee, 0x7ef, 0x7f0, 0x7f1, 0x7f2, 0x7f3, 0x7fd, 0x816, + 0x817, 0x818, 0x819, 0x81b, 0x81c, 0x81d, 0x81e, 0x81f, + 0x820, 0x821, 0x822, 0x823, 0x825, 0x826, 0x827, 0x829, + 0x82a, 0x82b, 0x82c, 0x82d, 0x859, 0x85a, 0x85b, 0x8d3, + 0x8d4, 0x8d5, 0x8d6, 0x8d7, 0x8d8, 0x8d9, 0x8da, 0x8db, + 0x8dc, 0x8dd, 0x8de, 0x8df, 0x8e0, 0x8e1, 0x8e3, 0x8e4, + 0x8e5, 0x8e6, 0x8e7, 0x8e8, 0x8e9, 0x8ea, 0x8eb, 0x8ec, + 0x8ed, 0x8ee, 0x8ef, 0x8f0, 0x8f1, 0x8f2, 0x8f3, 0x8f4, + 0x8f5, 0x8f6, 0x8f7, 0x8f8, 0x8f9, 0x8fa, 0x8fb, 0x8fc, + 0x8fd, 0x8fe, 0x8ff, 0x900, 0x901, 0x902, 0x903, 0x93a, + 0x93b, 0x93c, 0x93e, 0x93f, 0x940, 0x941, 0x942, 0x943, + 0x944, 0x945, 0x946, 0x947, 0x948, 0x949, 0x94a, 0x94b, + 0x94c, 0x94d, 0x94e, 0x94f, 0x951, 0x952, 0x953, 0x954, + 0x955, 0x956, 0x957, 0x962, 0x963, 0x981, 0x982, 0x983, + 0x9bc, 0x9be, 0x9bf, 0x9c0, 0x9c1, 0x9c2, 0x9c3, 0x9c4, + 0x9c7, 0x9c8, 0x9cb, 0x9cc, 0x9cd, 0x9d7, 0x9e2, 0x9e3, + 0x9fe, 0xa01, 0xa02, 0xa03, 0xa3c, 0xa3e, 0xa3f, 0xa40, + 0xa41, 0xa42, 0xa47, 0xa48, 0xa4b, 0xa4c, 0xa4d, 0xa51, + 0xa70, 0xa71, 0xa75, 0xa81, 0xa82, 0xa83, 0xabc, 0xabe, + 0xabf, 0xac0, 0xac1, 0xac2, 0xac3, 0xac4, 0xac5, 0xac7, + 0xac8, 0xac9, 0xacb, 0xacc, 0xacd, 0xae2, 0xae3, 0xafa, + 0xafb, 0xafc, 0xafd, 0xafe, 0xaff, 0xb01, 0xb02, 0xb03, + 0xb3c, 0xb3e, 0xb3f, 0xb40, 0xb41, 0xb42, 0xb43, 0xb44, + 0xb47, 0xb48, 0xb4b, 0xb4c, 0xb4d, 0xb55, 0xb56, 0xb57, + 0xb62, 0xb63, 0xb82, 0xbbe, 0xbbf, 0xbc0, 0xbc1, 0xbc2, + 0xbc6, 0xbc7, 0xbc8, 0xbca, 0xbcb, 0xbcc, 0xbcd, 0xbd7, + 0xc00, 0xc01, 0xc02, 0xc03, 0xc04, 0xc3e, 0xc3f, 0xc40, + 0xc41, 0xc42, 0xc43, 0xc44, 0xc46, 0xc47, 0xc48, 0xc4a, + 0xc4b, 0xc4c, 0xc4d, 0xc55, 0xc56, 0xc62, 0xc63, 0xc81, + 0xc82, 0xc83, 0xcbc, 0xcbe, 0xcbf, 0xcc0, 0xcc1, 0xcc2, + 0xcc3, 0xcc4, 0xcc6, 0xcc7, 0xcc8, 0xcca, 0xccb, 0xccc, + 0xccd, 0xcd5, 0xcd6, 0xce2, 0xce3, 0xd00, 0xd01, 0xd02, + 0xd03, 0xd3b, 0xd3c, 0xd3e, 0xd3f, 0xd40, 0xd41, 0xd42, + 0xd43, 0xd44, 0xd46, 0xd47, 0xd48, 0xd4a, 0xd4b, 0xd4c, + 0xd4d, 0xd57, 0xd62, 0xd63, 0xd81, 0xd82, 0xd83, 0xdca, + 0xdcf, 0xdd0, 0xdd1, 0xdd2, 0xdd3, 0xdd4, 0xdd6, 0xdd8, + 0xdd9, 0xdda, 0xddb, 0xddc, 0xddd, 0xdde, 0xddf, 0xdf2, + 0xdf3, 0xe31, 0xe34, 0xe35, 0xe36, 0xe37, 0xe38, 0xe39, + 0xe3a, 0xe47, 0xe48, 0xe49, 0xe4a, 0xe4b, 0xe4c, 0xe4d, + 0xe4e, 0xeb1, 0xeb4, 0xeb5, 0xeb6, 0xeb7, 0xeb8, 0xeb9, + 0xeba, 0xebb, 0xebc, 0xec8, 0xec9, 0xeca, 0xecb, 0xecc, + 0xecd, 0xf18, 0xf19, 0xf35, 0xf37, 0xf39, 0xf3e, 0xf3f, + 0xf71, 0xf72, 0xf73, 0xf74, 0xf75, 0xf76, 0xf77, 0xf78, + 0xf79, 0xf7a, 0xf7b, 0xf7c, 0xf7d, 0xf7e, 0xf7f, 0xf80, + 0xf81, 0xf82, 0xf83, 0xf84, 0xf86, 0xf87, 0xf8d, 0xf8e, 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0x11721, 0x11722, 0x11723, + 0x11724, 0x11725, 0x11726, 0x11727, 0x11728, 0x11729, 0x1172a, 0x1172b, + 0x1182c, 0x1182d, 0x1182e, 0x1182f, 0x11830, 0x11831, 0x11832, 0x11833, + 0x11834, 0x11835, 0x11836, 0x11837, 0x11838, 0x11839, 0x1183a, 0x11930, + 0x11931, 0x11932, 0x11933, 0x11934, 0x11935, 0x11937, 0x11938, 0x1193b, + 0x1193c, 0x1193d, 0x1193e, 0x11940, 0x11942, 0x11943, 0x119d1, 0x119d2, + 0x119d3, 0x119d4, 0x119d5, 0x119d6, 0x119d7, 0x119da, 0x119db, 0x119dc, + 0x119dd, 0x119de, 0x119df, 0x119e0, 0x119e4, 0x11a01, 0x11a02, 0x11a03, + 0x11a04, 0x11a05, 0x11a06, 0x11a07, 0x11a08, 0x11a09, 0x11a0a, 0x11a33, + 0x11a34, 0x11a35, 0x11a36, 0x11a37, 0x11a38, 0x11a39, 0x11a3b, 0x11a3c, + 0x11a3d, 0x11a3e, 0x11a47, 0x11a51, 0x11a52, 0x11a53, 0x11a54, 0x11a55, + 0x11a56, 0x11a57, 0x11a58, 0x11a59, 0x11a5a, 0x11a5b, 0x11a8a, 0x11a8b, + 0x11a8c, 0x11a8d, 0x11a8e, 0x11a8f, 0x11a90, 0x11a91, 0x11a92, 0x11a93, + 0x11a94, 0x11a95, 0x11a96, 0x11a97, 0x11a98, 0x11a99, 0x11c2f, 0x11c30, + 0x11c31, 0x11c32, 0x11c33, 0x11c34, 0x11c35, 0x11c36, 0x11c38, 0x11c39, + 0x11c3a, 0x11c3b, 0x11c3c, 0x11c3d, 0x11c3e, 0x11c3f, 0x11c92, 0x11c93, + 0x11c94, 0x11c95, 0x11c96, 0x11c97, 0x11c98, 0x11c99, 0x11c9a, 0x11c9b, + 0x11c9c, 0x11c9d, 0x11c9e, 0x11c9f, 0x11ca0, 0x11ca1, 0x11ca2, 0x11ca3, + 0x11ca4, 0x11ca5, 0x11ca6, 0x11ca7, 0x11ca9, 0x11caa, 0x11cab, 0x11cac, + 0x11cad, 0x11cae, 0x11caf, 0x11cb0, 0x11cb1, 0x11cb2, 0x11cb3, 0x11cb4, + 0x11cb5, 0x11cb6, 0x11d31, 0x11d32, 0x11d33, 0x11d34, 0x11d35, 0x11d36, + 0x11d3a, 0x11d3c, 0x11d3d, 0x11d3f, 0x11d40, 0x11d41, 0x11d42, 0x11d43, + 0x11d44, 0x11d45, 0x11d47, 0x11d8a, 0x11d8b, 0x11d8c, 0x11d8d, 0x11d8e, + 0x11d90, 0x11d91, 0x11d93, 0x11d94, 0x11d95, 0x11d96, 0x11d97, 0x11ef3, + 0x11ef4, 0x11ef5, 0x11ef6, 0x16af0, 0x16af1, 0x16af2, 0x16af3, 0x16af4, + 0x16b30, 0x16b31, 0x16b32, 0x16b33, 0x16b34, 0x16b35, 0x16b36, 0x16f4f, + 0x16f51, 0x16f52, 0x16f53, 0x16f54, 0x16f55, 0x16f56, 0x16f57, 0x16f58, + 0x16f59, 0x16f5a, 0x16f5b, 0x16f5c, 0x16f5d, 0x16f5e, 0x16f5f, 0x16f60, + 0x16f61, 0x16f62, 0x16f63, 0x16f64, 0x16f65, 0x16f66, 0x16f67, 0x16f68, + 0x16f69, 0x16f6a, 0x16f6b, 0x16f6c, 0x16f6d, 0x16f6e, 0x16f6f, 0x16f70, + 0x16f71, 0x16f72, 0x16f73, 0x16f74, 0x16f75, 0x16f76, 0x16f77, 0x16f78, + 0x16f79, 0x16f7a, 0x16f7b, 0x16f7c, 0x16f7d, 0x16f7e, 0x16f7f, 0x16f80, + 0x16f81, 0x16f82, 0x16f83, 0x16f84, 0x16f85, 0x16f86, 0x16f87, 0x16f8f, + 0x16f90, 0x16f91, 0x16f92, 0x16fe4, 0x16ff0, 0x16ff1, 0x1bc9d, 0x1bc9e, + 0x1d165, 0x1d166, 0x1d167, 0x1d168, 0x1d169, 0x1d16d, 0x1d16e, 0x1d16f, + 0x1d170, 0x1d171, 0x1d172, 0x1d17b, 0x1d17c, 0x1d17d, 0x1d17e, 0x1d17f, + 0x1d180, 0x1d181, 0x1d182, 0x1d185, 0x1d186, 0x1d187, 0x1d188, 0x1d189, + 0x1d18a, 0x1d18b, 0x1d1aa, 0x1d1ab, 0x1d1ac, 0x1d1ad, 0x1d242, 0x1d243, + 0x1d244, 0x1da00, 0x1da01, 0x1da02, 0x1da03, 0x1da04, 0x1da05, 0x1da06, + 0x1da07, 0x1da08, 0x1da09, 0x1da0a, 0x1da0b, 0x1da0c, 0x1da0d, 0x1da0e, + 0x1da0f, 0x1da10, 0x1da11, 0x1da12, 0x1da13, 0x1da14, 0x1da15, 0x1da16, + 0x1da17, 0x1da18, 0x1da19, 0x1da1a, 0x1da1b, 0x1da1c, 0x1da1d, 0x1da1e, + 0x1da1f, 0x1da20, 0x1da21, 0x1da22, 0x1da23, 0x1da24, 0x1da25, 0x1da26, + 0x1da27, 0x1da28, 0x1da29, 0x1da2a, 0x1da2b, 0x1da2c, 0x1da2d, 0x1da2e, + 0x1da2f, 0x1da30, 0x1da31, 0x1da32, 0x1da33, 0x1da34, 0x1da35, 0x1da36, + 0x1da3b, 0x1da3c, 0x1da3d, 0x1da3e, 0x1da3f, 0x1da40, 0x1da41, 0x1da42, + 0x1da43, 0x1da44, 0x1da45, 0x1da46, 0x1da47, 0x1da48, 0x1da49, 0x1da4a, + 0x1da4b, 0x1da4c, 0x1da4d, 0x1da4e, 0x1da4f, 0x1da50, 0x1da51, 0x1da52, + 0x1da53, 0x1da54, 0x1da55, 0x1da56, 0x1da57, 0x1da58, 0x1da59, 0x1da5a, + 0x1da5b, 0x1da5c, 0x1da5d, 0x1da5e, 0x1da5f, 0x1da60, 0x1da61, 0x1da62, + 0x1da63, 0x1da64, 0x1da65, 0x1da66, 0x1da67, 0x1da68, 0x1da69, 0x1da6a, + 0x1da6b, 0x1da6c, 0x1da75, 0x1da84, 0x1da9b, 0x1da9c, 0x1da9d, 0x1da9e, + 0x1da9f, 0x1daa1, 0x1daa2, 0x1daa3, 0x1daa4, 0x1daa5, 0x1daa6, 0x1daa7, + 0x1daa8, 0x1daa9, 0x1daaa, 0x1daab, 0x1daac, 0x1daad, 0x1daae, 0x1daaf, + 0x1e000, 0x1e001, 0x1e002, 0x1e003, 0x1e004, 0x1e005, 0x1e006, 0x1e008, + 0x1e009, 0x1e00a, 0x1e00b, 0x1e00c, 0x1e00d, 0x1e00e, 0x1e00f, 0x1e010, + 0x1e011, 0x1e012, 0x1e013, 0x1e014, 0x1e015, 0x1e016, 0x1e017, 0x1e018, + 0x1e01b, 0x1e01c, 0x1e01d, 0x1e01e, 0x1e01f, 0x1e020, 0x1e021, 0x1e023, + 0x1e024, 0x1e026, 0x1e027, 0x1e028, 0x1e029, 0x1e02a, 0x1e130, 0x1e131, + 0x1e132, 0x1e133, 0x1e134, 0x1e135, 0x1e136, 0x1e2ec, 0x1e2ed, 0x1e2ee, + 0x1e2ef, 0x1e8d0, 0x1e8d1, 0x1e8d2, 0x1e8d3, 0x1e8d4, 0x1e8d5, 0x1e8d6, + 0x1e944, 0x1e945, 0x1e946, 0x1e947, 0x1e948, 0x1e949, 0x1e94a, 0xe0100, + 0xe0101, 0xe0102, 0xe0103, 0xe0104, 0xe0105, 0xe0106, 0xe0107, 0xe0108, + 0xe0109, 0xe010a, 0xe010b, 0xe010c, 0xe010d, 0xe010e, 0xe010f, 0xe0110, + 0xe0111, 0xe0112, 0xe0113, 0xe0114, 0xe0115, 0xe0116, 0xe0117, 0xe0118, + 0xe0119, 0xe011a, 0xe011b, 0xe011c, 0xe011d, 0xe011e, 0xe011f, 0xe0120, + 0xe0121, 0xe0122, 0xe0123, 0xe0124, 0xe0125, 0xe0126, 0xe0127, 0xe0128, + 0xe0129, 0xe012a, 0xe012b, 0xe012c, 0xe012d, 0xe012e, 0xe012f, 0xe0130, + 0xe0131, 0xe0132, 0xe0133, 0xe0134, 0xe0135, 0xe0136, 0xe0137, 0xe0138, + 0xe0139, 0xe013a, 0xe013b, 0xe013c, 0xe013d, 0xe013e, 0xe013f, 0xe0140, + 0xe0141, 0xe0142, 0xe0143, 0xe0144, 0xe0145, 0xe0146, 0xe0147, 0xe0148, + 0xe0149, 0xe014a, 0xe014b, 0xe014c, 0xe014d, 0xe014e, 0xe014f, 0xe0150, + 0xe0151, 0xe0152, 0xe0153, 0xe0154, 0xe0155, 0xe0156, 0xe0157, 0xe0158, + 0xe0159, 0xe015a, 0xe015b, 0xe015c, 0xe015d, 0xe015e, 0xe015f, 0xe0160, + 0xe0161, 0xe0162, 0xe0163, 0xe0164, 0xe0165, 0xe0166, 0xe0167, 0xe0168, + 0xe0169, 0xe016a, 0xe016b, 0xe016c, 0xe016d, 0xe016e, 0xe016f, 0xe0170, + 0xe0171, 0xe0172, 0xe0173, 0xe0174, 0xe0175, 0xe0176, 0xe0177, 0xe0178, + 0xe0179, 0xe017a, 0xe017b, 0xe017c, 0xe017d, 0xe017e, 0xe017f, 0xe0180, + 0xe0181, 0xe0182, 0xe0183, 0xe0184, 0xe0185, 0xe0186, 0xe0187, 0xe0188, + 0xe0189, 0xe018a, 0xe018b, 0xe018c, 0xe018d, 0xe018e, 0xe018f, 0xe0190, + 0xe0191, 0xe0192, 0xe0193, 0xe0194, 0xe0195, 0xe0196, 0xe0197, 0xe0198, + 0xe0199, 0xe019a, 0xe019b, 0xe019c, 0xe019d, 0xe019e, 0xe019f, 0xe01a0, + 0xe01a1, 0xe01a2, 0xe01a3, 0xe01a4, 0xe01a5, 0xe01a6, 0xe01a7, 0xe01a8, + 0xe01a9, 0xe01aa, 0xe01ab, 0xe01ac, 0xe01ad, 0xe01ae, 0xe01af, 0xe01b0, + 0xe01b1, 0xe01b2, 0xe01b3, 0xe01b4, 0xe01b5, 0xe01b6, 0xe01b7, 0xe01b8, + 0xe01b9, 0xe01ba, 0xe01bb, 0xe01bc, 0xe01bd, 0xe01be, 0xe01bf, 0xe01c0, + 0xe01c1, 0xe01c2, 0xe01c3, 0xe01c4, 0xe01c5, 0xe01c6, 0xe01c7, 0xe01c8, + 0xe01c9, 0xe01ca, 0xe01cb, 0xe01cc, 0xe01cd, 0xe01ce, 0xe01cf, 0xe01d0, + 0xe01d1, 0xe01d2, 0xe01d3, 0xe01d4, 0xe01d5, 0xe01d6, 0xe01d7, 0xe01d8, + 0xe01d9, 0xe01da, 0xe01db, 0xe01dc, 0xe01dd, 0xe01de, 0xe01df, 0xe01e0, + 0xe01e1, 0xe01e2, 0xe01e3, 0xe01e4, 0xe01e5, 0xe01e6, 0xe01e7, 0xe01e8, + 0xe01e9, 0xe01ea, 0xe01eb, 0xe01ec, 0xe01ed, 0xe01ee, 0xe01ef}; + if (std::binary_search(std::begin(combining), std::end(combining), + label.front())) { + return false; + } + // We verify this next step as part of the mapping: + // --------------------------------------------- + // Each code point in the label must only have certain status values + // according to Section 5, IDNA Mapping Table: + // - For Transitional Processing, each value must be valid. + // - For Nontransitional Processing, each value must be either valid or + // deviation. + + // If CheckJoiners, the label must satisfy the ContextJ rules from Appendix + // A, in The Unicode Code Points and Internationalized Domain Names for + // Applications (IDNA) [IDNA2008]. + constexpr static uint32_t virama[] = { + 0x094D, 0x09CD, 0x0A4D, 0x0ACD, 0x0B4D, 0x0BCD, 0x0C4D, 0x0CCD, + 0x0D3B, 0x0D3C, 0x0D4D, 0x0DCA, 0x0E3A, 0x0EBA, 0x0F84, 0x1039, + 0x103A, 0x1714, 0x1734, 0x17D2, 0x1A60, 0x1B44, 0x1BAA, 0x1BAB, + 0x1BF2, 0x1BF3, 0x2D7F, 0xA806, 0xA82C, 0xA8C4, 0xA953, 0xA9C0, + 0xAAF6, 0xABED, 0x10A3F, 0x11046, 0x1107F, 0x110B9, 0x11133, 0x11134, + 0x111C0, 0x11235, 0x112EA, 0x1134D, 0x11442, 0x114C2, 0x115BF, 0x1163F, + 0x116B6, 0x1172B, 0x11839, 0x1193D, 0x1193E, 0x119E0, 0x11A34, 0x11A47, + 0x11A99, 0x11C3F, 0x11D44, 0x11D45, 0x11D97}; + constexpr static uint32_t R[] = { + 0x622, 0x623, 0x624, 0x625, 0x627, 0x629, 0x62f, 0x630, 0x631, + 0x632, 0x648, 0x671, 0x672, 0x673, 0x675, 0x676, 0x677, 0x688, + 0x689, 0x68a, 0x68b, 0x68c, 0x68d, 0x68e, 0x68f, 0x690, 0x691, + 0x692, 0x693, 0x694, 0x695, 0x696, 0x697, 0x698, 0x699, 0x6c0, + 0x6c3, 0x6c4, 0x6c5, 0x6c6, 0x6c7, 0x6c8, 0x6c9, 0x6ca, 0x6cb, + 0x6cd, 0x6cf, 0x6d2, 0x6d3, 0x6d5, 0x6ee, 0x6ef, 0x710, 0x715, + 0x716, 0x717, 0x718, 0x719, 0x71e, 0x728, 0x72a, 0x72c, 0x72f, + 0x74d, 0x759, 0x75a, 0x75b, 0x854, 0x8aa, 0x8ab, 0x8ac}; + constexpr static uint32_t L[] = {0xa872}; + constexpr static uint32_t D[] = { + 0x620, 0x626, 0x628, 0x62a, 0x62b, 0x62c, 0x62d, 0x62e, 0x633, + 0x634, 0x635, 0x636, 0x637, 0x638, 0x639, 0x63a, 0x63b, 0x63c, + 0x63d, 0x63e, 0x63f, 0x641, 0x642, 0x643, 0x644, 0x645, 0x646, + 0x647, 0x649, 0x64a, 0x66e, 0x66f, 0x678, 0x679, 0x67a, 0x67b, + 0x67c, 0x67d, 0x67e, 0x67f, 0x680, 0x681, 0x682, 0x683, 0x684, + 0x685, 0x686, 0x687, 0x69a, 0x69b, 0x69c, 0x69d, 0x69e, 0x69f, + 0x6a0, 0x6a1, 0x6a2, 0x6a3, 0x6a4, 0x6a5, 0x6a6, 0x6a7, 0x6a8, + 0x6a9, 0x6aa, 0x6ab, 0x6ac, 0x6ad, 0x6ae, 0x6af, 0x6b0, 0x6b1, + 0x6b2, 0x6b3, 0x6b4, 0x6b5, 0x6b6, 0x6b7, 0x6b8, 0x6b9, 0x6ba, + 0x6bb, 0x6bc, 0x6bd, 0x6be, 0x6bf, 0x6c1, 0x6c2, 0x6cc, 0x6ce, + 0x6d0, 0x6d1, 0x6fa, 0x6fb, 0x6fc, 0x6ff, 0x712, 0x713, 0x714, + 0x71a, 0x71b, 0x71c, 0x71d, 0x71f, 0x720, 0x721, 0x722, 0x723, + 0x724, 0x725, 0x726, 0x727, 0x729, 0x72b, 0x72d, 0x72e, 0x74e, + 0x74f, 0x750, 0x751, 0x752, 0x753, 0x754, 0x755, 0x756, 0x757, + 0x758, 0x75c, 0x75d, 0x75e, 0x75f, 0x760, 0x761, 0x762, 0x763, + 0x764, 0x765, 0x766, 0x850, 0x851, 0x852, 0x853, 0x855, 0x8a0, + 0x8a2, 0x8a3, 0x8a4, 0x8a5, 0x8a6, 0x8a7, 0x8a8, 0x8a9, 0x1807, + 0x1820, 0x1821, 0x1822, 0x1823, 0x1824, 0x1825, 0x1826, 0x1827, 0x1828, + 0x1829, 0x182a, 0x182b, 0x182c, 0x182d, 0x182e, 0x182f, 0x1830, 0x1831, + 0x1832, 0x1833, 0x1834, 0x1835, 0x1836, 0x1837, 0x1838, 0x1839, 0x183a, + 0x183b, 0x183c, 0x183d, 0x183e, 0x183f, 0x1840, 0x1841, 0x1842, 0x1843, + 0x1844, 0x1845, 0x1846, 0x1847, 0x1848, 0x1849, 0x184a, 0x184b, 0x184c, + 0x184d, 0x184e, 0x184f, 0x1850, 0x1851, 0x1852, 0x1853, 0x1854, 0x1855, + 0x1856, 0x1857, 0x1858, 0x1859, 0x185a, 0x185b, 0x185c, 0x185d, 0x185e, + 0x185f, 0x1860, 0x1861, 0x1862, 0x1863, 0x1864, 0x1865, 0x1866, 0x1867, + 0x1868, 0x1869, 0x186a, 0x186b, 0x186c, 0x186d, 0x186e, 0x186f, 0x1870, + 0x1871, 0x1872, 0x1873, 0x1874, 0x1875, 0x1876, 0x1877, 0x1887, 0x1888, + 0x1889, 0x188a, 0x188b, 0x188c, 0x188d, 0x188e, 0x188f, 0x1890, 0x1891, + 0x1892, 0x1893, 0x1894, 0x1895, 0x1896, 0x1897, 0x1898, 0x1899, 0x189a, + 0x189b, 0x189c, 0x189d, 0x189e, 0x189f, 0x18a0, 0x18a1, 0x18a2, 0x18a3, + 0x18a4, 0x18a5, 0x18a6, 0x18a7, 0x18a8, 0x18aa, 0xa840, 0xa841, 0xa842, + 0xa843, 0xa844, 0xa845, 0xa846, 0xa847, 0xa848, 0xa849, 0xa84a, 0xa84b, + 0xa84c, 0xa84d, 0xa84e, 0xa84f, 0xa850, 0xa851, 0xa852, 0xa853, 0xa854, + 0xa855, 0xa856, 0xa857, 0xa858, 0xa859, 0xa85a, 0xa85b, 0xa85c, 0xa85d, + 0xa85e, 0xa85f, 0xa860, 0xa861, 0xa862, 0xa863, 0xa864, 0xa865, 0xa866, + 0xa867, 0xa868, 0xa869, 0xa86a, 0xa86b, 0xa86c, 0xa86d, 0xa86e, 0xa86f, + 0xa870, 0xa871}; + + for (size_t i = 0; i < label.size(); i++) { + uint32_t c = label[i]; + if (c == 0x200c) { + if (i > 0) { + if (std::binary_search(std::begin(virama), std::end(virama), + label[i - 1])) { + return true; + } + } + if ((i == 0) || (i + 1 >= label.size())) { + return false; + } + // we go backward looking for L or D + auto is_l_or_d = [](uint32_t code) { + return std::binary_search(std::begin(L), std::end(L), code) || + std::binary_search(std::begin(D), std::end(D), code); + }; + auto is_r_or_d = [](uint32_t code) { + return std::binary_search(std::begin(R), std::end(R), code) || + std::binary_search(std::begin(D), std::end(D), code); + }; + std::u32string_view before = label.substr(0, i); + std::u32string_view after = label.substr(i + 1); + return (std::find_if(before.begin(), before.end(), is_l_or_d) != + before.end()) && + (std::find_if(after.begin(), after.end(), is_r_or_d) != + after.end()); + } else if (c == 0x200d) { + if (i > 0) { + if (std::binary_search(std::begin(virama), std::end(virama), + label[i - 1])) { + return true; + } + } + return false; + } + } + + // If CheckBidi, and if the domain name is a Bidi domain name, then the label + // must satisfy all six of the numbered conditions in [IDNA2008] RFC 5893, + // Section 2. + + // The following rule, consisting of six conditions, applies to labels + // in Bidi domain names. The requirements that this rule satisfies are + // described in Section 3. All of the conditions must be satisfied for + // the rule to be satisfied. + // + // 1. The first character must be a character with Bidi property L, R, + // or AL. If it has the R or AL property, it is an RTL label; if it + // has the L property, it is an LTR label. + // + // 2. In an RTL label, only characters with the Bidi properties R, AL, + // AN, EN, ES, CS, ET, ON, BN, or NSM are allowed. + // + // 3. In an RTL label, the end of the label must be a character with + // Bidi property R, AL, EN, or AN, followed by zero or more + // characters with Bidi property NSM. + // + // 4. In an RTL label, if an EN is present, no AN may be present, and + // vice versa. + // + // 5. In an LTR label, only characters with the Bidi properties L, EN, + // ES, CS, ET, ON, BN, or NSM are allowed. + // + // 6. In an LTR label, the end of the label must be a character with + // Bidi property L or EN, followed by zero or more characters with + // Bidi property NSM. + + size_t last_non_nsm_char = find_last_not_of_nsm(label); + if (last_non_nsm_char == std::u32string_view::npos) { + return false; + } + + // A "Bidi domain name" is a domain name that contains at least one RTL label. + // The following rule, consisting of six conditions, applies to labels in Bidi + // domain names. + if (is_rtl_label(label)) { + // The first character must be a character with Bidi property L, R, + // or AL. If it has the R or AL property, it is an RTL label; if it + // has the L property, it is an LTR label. + + if (find_direction(label[0]) == direction::L) { + // Eval as LTR + + // In an LTR label, only characters with the Bidi properties L, EN, + // ES, CS, ET, ON, BN, or NSM are allowed. + for (size_t i = 0; i < last_non_nsm_char; i++) { + const direction d = find_direction(label[i]); + if (!(d == direction::L || d == direction::EN || d == direction::ES || + d == direction::CS || d == direction::ET || d == direction::ON || + d == direction::BN || d == direction::NSM)) { + return false; + } + + if ((i == last_non_nsm_char) && + !(d == direction::L || d == direction::EN)) { + return false; + } + } + + return true; + + } else { + // Eval as RTL + + bool has_an = false; + bool has_en = false; + for (size_t i = 0; i <= last_non_nsm_char; i++) { + const direction d = find_direction(label[i]); + + // In an RTL label, if an EN is present, no AN may be present, and vice + // versa. + if ((d == direction::EN && ((has_en = true) && has_an)) || + (d == direction::AN && ((has_an = true) && has_en))) { + return false; + } + + if (!(d == direction::R || d == direction::AL || d == direction::AN || + d == direction::EN || d == direction::ES || d == direction::CS || + d == direction::ET || d == direction::ON || d == direction::BN || + d == direction::NSM)) { + return false; + } + + if (i == last_non_nsm_char && + !(d == direction::R || d == direction::AL || d == direction::AN || + d == direction::EN)) { + return false; + } + } + + return true; + } + } + + return true; +} + +} // namespace ada::idna +/* end file src/validity.cpp */ +/* begin file src/to_ascii.cpp */ + +#include +#include + + +namespace ada::idna { + +bool begins_with(std::u32string_view view, std::u32string_view prefix) { + if (view.size() < prefix.size()) { + return false; + } + // constexpr as of C++20 + return std::equal(prefix.begin(), prefix.end(), view.begin()); +} + +bool begins_with(std::string_view view, std::string_view prefix) { + if (view.size() < prefix.size()) { + return false; + } + // constexpr as of C++20 + return std::equal(prefix.begin(), prefix.end(), view.begin()); +} + +bool constexpr is_ascii(std::u32string_view view) { + for (uint32_t c : view) { + if (c >= 0x80) { + return false; + } + } + return true; +} + +bool constexpr is_ascii(std::string_view view) { + for (uint8_t c : view) { + if (c >= 0x80) { + return false; + } + } + return true; +} + +constexpr static uint8_t is_forbidden_domain_code_point_table[] = { + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}; + +static_assert(sizeof(is_forbidden_domain_code_point_table) == 256); + +inline bool is_forbidden_domain_code_point(const char c) noexcept { + return is_forbidden_domain_code_point_table[uint8_t(c)]; +} + +bool contains_forbidden_domain_code_point(std::string_view view) { + return ( + std::any_of(view.begin(), view.end(), is_forbidden_domain_code_point)); +} + +// We return "" on error. +static std::string from_ascii_to_ascii(std::string_view ut8_string) { + static const std::string error = ""; + // copy and map + // we could be more efficient by avoiding the copy when unnecessary. + std::string mapped_string = std::string(ut8_string); + ascii_map(mapped_string.data(), mapped_string.size()); + std::string out; + size_t label_start = 0; + + while (label_start != mapped_string.size()) { + size_t loc_dot = mapped_string.find('.', label_start); + bool is_last_label = (loc_dot == std::string_view::npos); + size_t label_size = is_last_label ? mapped_string.size() - label_start + : loc_dot - label_start; + size_t label_size_with_dot = is_last_label ? label_size : label_size + 1; + std::string_view label_view(mapped_string.data() + label_start, label_size); + label_start += label_size_with_dot; + if (label_size == 0) { + // empty label? Nothing to do. + } else if (begins_with(label_view, "xn--")) { + // The xn-- part is the expensive game. + out.append(label_view); + std::string_view puny_segment_ascii( + out.data() + out.size() - label_view.size() + 4, + label_view.size() - 4); + std::u32string tmp_buffer; + bool is_ok = ada::idna::punycode_to_utf32(puny_segment_ascii, tmp_buffer); + if (!is_ok) { + return error; + } + std::u32string post_map = ada::idna::map(tmp_buffer); + if (tmp_buffer != post_map) { + return error; + } + std::u32string pre_normal = post_map; + normalize(post_map); + if (post_map != pre_normal) { + return error; + } + if (post_map.empty()) { + return error; + } + if (!is_label_valid(post_map)) { + return error; + } + } else { + out.append(label_view); + } + if (!is_last_label) { + out.push_back('.'); + } + } + return out; +} + +// We return "" on error. +std::string to_ascii(std::string_view ut8_string) { + if (is_ascii(ut8_string)) { + return from_ascii_to_ascii(ut8_string); + } + static const std::string error = ""; + // We convert to UTF-32 + size_t utf32_length = + ada::idna::utf32_length_from_utf8(ut8_string.data(), ut8_string.size()); + std::u32string utf32(utf32_length, '\0'); + size_t actual_utf32_length = ada::idna::utf8_to_utf32( + ut8_string.data(), ut8_string.size(), utf32.data()); + if (actual_utf32_length == 0) { + return error; + } + // mapping + utf32 = ada::idna::map(utf32); + normalize(utf32); + std::string out; + size_t label_start = 0; + + while (label_start != utf32.size()) { + size_t loc_dot = utf32.find('.', label_start); + bool is_last_label = (loc_dot == std::string_view::npos); + size_t label_size = + is_last_label ? utf32.size() - label_start : loc_dot - label_start; + size_t label_size_with_dot = is_last_label ? label_size : label_size + 1; + std::u32string_view label_view(utf32.data() + label_start, label_size); + label_start += label_size_with_dot; + if (label_size == 0) { + // empty label? Nothing to do. + } else if (begins_with(label_view, U"xn--")) { + // we do not need to check, e.g., Xn-- because mapping goes to lower case + for (char32_t c : label_view) { + if (c >= 0x80) { + return error; + } + out += (unsigned char)(c); + } + std::string_view puny_segment_ascii( + out.data() + out.size() - label_view.size() + 4, + label_view.size() - 4); + std::u32string tmp_buffer; + bool is_ok = ada::idna::punycode_to_utf32(puny_segment_ascii, tmp_buffer); + if (!is_ok) { + return error; + } + std::u32string post_map = ada::idna::map(tmp_buffer); + if (tmp_buffer != post_map) { + return error; + } + std::u32string pre_normal = post_map; + normalize(post_map); + if (post_map != pre_normal) { + return error; + } + if (post_map.empty()) { + return error; + } + if (!is_label_valid(post_map)) { + return error; + } + } else { + // The fast path here is an ascii label. + if (is_ascii(label_view)) { + // no validation needed. + for (char32_t c : label_view) { + out += (unsigned char)(c); + } + } else { + // slow path. + // first check validity. + if (!is_label_valid(label_view)) { + return error; + } + // It is valid! So now we must encode it as punycode... + out.append("xn--"); + bool is_ok = ada::idna::utf32_to_punycode(label_view, out); + if (!is_ok) { + return error; + } + } + } + if (!is_last_label) { + out.push_back('.'); + } + } + return out; +} +} // namespace ada::idna +/* end file src/to_ascii.cpp */ +/* begin file src/to_unicode.cpp */ + +#include +#include + + +namespace ada::idna { +std::string to_unicode(std::string_view input) { + std::string output; + output.reserve(input.size()); + + size_t label_start = 0; + while (label_start < input.size()) { + size_t loc_dot = input.find('.', label_start); + bool is_last_label = (loc_dot == std::string_view::npos); + size_t label_size = + is_last_label ? input.size() - label_start : loc_dot - label_start; + auto label_view = std::string_view(input.data() + label_start, label_size); + + if (ada::idna::begins_with(label_view, "xn--") && + ada::idna::is_ascii(label_view)) { + label_view.remove_prefix(4); + if (ada::idna::verify_punycode(label_view)) { + std::u32string tmp_buffer; + if (ada::idna::punycode_to_utf32(label_view, tmp_buffer)) { + auto utf8_size = ada::idna::utf8_length_from_utf32(tmp_buffer.data(), + tmp_buffer.size()); + std::string final_utf8(utf8_size, '\0'); + ada::idna::utf32_to_utf8(tmp_buffer.data(), tmp_buffer.size(), + final_utf8.data()); + output.append(final_utf8); + } else { + // ToUnicode never fails. If any step fails, then the original input + // sequence is returned immediately in that step. + output.append( + std::string_view(input.data() + label_start, label_size)); + } + } else { + output.append(std::string_view(input.data() + label_start, label_size)); + } + } else { + output.append(label_view); + } + + if (!is_last_label) { + output.push_back('.'); + } + + label_start += label_size + 1; + } + + return output; +} +} // namespace ada::idna +/* end file src/to_unicode.cpp */ +/* end file src/idna.cpp */ +/* end file src/ada_idna.cpp */ +ADA_POP_DISABLE_WARNINGS + +#include +#if ADA_NEON +#include +#elif ADA_SSE2 +#include +#endif + +namespace ada::unicode { + +constexpr uint64_t broadcast(uint8_t v) noexcept { + return 0x101010101010101ull * v; +} + +constexpr bool to_lower_ascii(char* input, size_t length) noexcept { + uint64_t broadcast_80 = broadcast(0x80); + uint64_t broadcast_Ap = broadcast(128 - 'A'); + uint64_t broadcast_Zp = broadcast(128 - 'Z' - 1); + uint64_t non_ascii = 0; + size_t i = 0; + + for (; i + 7 < length; i += 8) { + uint64_t word{}; + memcpy(&word, input + i, sizeof(word)); + non_ascii |= (word & broadcast_80); + word ^= + (((word + broadcast_Ap) ^ (word + broadcast_Zp)) & broadcast_80) >> 2; + memcpy(input + i, &word, sizeof(word)); + } + if (i < length) { + uint64_t word{}; + memcpy(&word, input + i, length - i); + non_ascii |= (word & broadcast_80); + word ^= + (((word + broadcast_Ap) ^ (word + broadcast_Zp)) & broadcast_80) >> 2; + memcpy(input + i, &word, length - i); + } + return non_ascii == 0; +} +#if ADA_NEON +ada_really_inline bool has_tabs_or_newline( + std::string_view user_input) noexcept { + // first check for short strings in which case we do it naively. + if (user_input.size() < 16) { // slow path + for (size_t i = 0; i < user_input.size(); i++) { + if (user_input[i] == '\r' || user_input[i] == '\n' || + user_input[i] == '\t') { + return true; + } + } + return false; + } + // fast path for long strings (expected to be common) + size_t i = 0; + const uint8x16_t mask1 = vmovq_n_u8('\r'); + const uint8x16_t mask2 = vmovq_n_u8('\n'); + const uint8x16_t mask3 = vmovq_n_u8('\t'); + uint8x16_t running{0}; + for (; i + 15 < user_input.size(); i += 16) { + uint8x16_t word = vld1q_u8((const uint8_t*)user_input.data() + i); + running = vorrq_u8(vorrq_u8(running, vorrq_u8(vceqq_u8(word, mask1), + vceqq_u8(word, mask2))), + vceqq_u8(word, mask3)); + } + if (i < user_input.size()) { + uint8x16_t word = + vld1q_u8((const uint8_t*)user_input.data() + user_input.length() - 16); + running = vorrq_u8(vorrq_u8(running, vorrq_u8(vceqq_u8(word, mask1), + vceqq_u8(word, mask2))), + vceqq_u8(word, mask3)); + } + return vmaxvq_u8(running) != 0; +} +#elif ADA_SSE2 +ada_really_inline bool has_tabs_or_newline( + std::string_view user_input) noexcept { + // first check for short strings in which case we do it naively. + if (user_input.size() < 16) { // slow path + for (size_t i = 0; i < user_input.size(); i++) { + if (user_input[i] == '\r' || user_input[i] == '\n' || + user_input[i] == '\t') { + return true; + } + } + return false; + } + // fast path for long strings (expected to be common) + size_t i = 0; + const __m128i mask1 = _mm_set1_epi8('\r'); + const __m128i mask2 = _mm_set1_epi8('\n'); + const __m128i mask3 = _mm_set1_epi8('\t'); + __m128i running{0}; + for (; i + 15 < user_input.size(); i += 16) { + __m128i word = _mm_loadu_si128((const __m128i*)(user_input.data() + i)); + running = _mm_or_si128( + _mm_or_si128(running, _mm_or_si128(_mm_cmpeq_epi8(word, mask1), + _mm_cmpeq_epi8(word, mask2))), + _mm_cmpeq_epi8(word, mask3)); + } + if (i < user_input.size()) { + __m128i word = _mm_loadu_si128( + (const __m128i*)(user_input.data() + user_input.length() - 16)); + running = _mm_or_si128( + _mm_or_si128(running, _mm_or_si128(_mm_cmpeq_epi8(word, mask1), + _mm_cmpeq_epi8(word, mask2))), + _mm_cmpeq_epi8(word, mask3)); + } + return _mm_movemask_epi8(running) != 0; +} +#else +ada_really_inline bool has_tabs_or_newline( + std::string_view user_input) noexcept { + auto has_zero_byte = [](uint64_t v) { + return ((v - 0x0101010101010101) & ~(v)&0x8080808080808080); + }; + size_t i = 0; + uint64_t mask1 = broadcast('\r'); + uint64_t mask2 = broadcast('\n'); + uint64_t mask3 = broadcast('\t'); + uint64_t running{0}; + for (; i + 7 < user_input.size(); i += 8) { + uint64_t word{}; + memcpy(&word, user_input.data() + i, sizeof(word)); + uint64_t xor1 = word ^ mask1; + uint64_t xor2 = word ^ mask2; + uint64_t xor3 = word ^ mask3; + running |= has_zero_byte(xor1) | has_zero_byte(xor2) | has_zero_byte(xor3); + } + if (i < user_input.size()) { + uint64_t word{}; + memcpy(&word, user_input.data() + i, user_input.size() - i); + uint64_t xor1 = word ^ mask1; + uint64_t xor2 = word ^ mask2; + uint64_t xor3 = word ^ mask3; + running |= has_zero_byte(xor1) | has_zero_byte(xor2) | has_zero_byte(xor3); + } + return running; +} +#endif + +// A forbidden host code point is U+0000 NULL, U+0009 TAB, U+000A LF, U+000D CR, +// U+0020 SPACE, U+0023 (#), U+002F (/), U+003A (:), U+003C (<), U+003E (>), +// U+003F (?), U+0040 (@), U+005B ([), U+005C (\), U+005D (]), U+005E (^), or +// U+007C (|). +constexpr static std::array is_forbidden_host_code_point_table = + []() constexpr { + std::array result{}; + for (uint8_t c : {'\0', '\x09', '\x0a', '\x0d', ' ', '#', '/', ':', '<', + '>', '?', '@', '[', '\\', ']', '^', '|'}) { + result[c] = true; + } + return result; + }(); + +ada_really_inline constexpr bool is_forbidden_host_code_point( + const char c) noexcept { + return is_forbidden_host_code_point_table[uint8_t(c)]; +} + +constexpr static std::array is_forbidden_domain_code_point_table = + []() constexpr { + std::array result{}; + for (uint8_t c : {'\0', '\x09', '\x0a', '\x0d', ' ', '#', '/', ':', '<', + '>', '?', '@', '[', '\\', ']', '^', '|', '%'}) { + result[c] = true; + } + for (uint8_t c = 0; c <= 32; c++) { + result[c] = true; + } + for (size_t c = 127; c < 255; c++) { + result[c] = true; + } + return result; + }(); + +static_assert(sizeof(is_forbidden_domain_code_point_table) == 256); + +ada_really_inline constexpr bool is_forbidden_domain_code_point( + const char c) noexcept { + return is_forbidden_domain_code_point_table[uint8_t(c)]; +} + +ada_really_inline constexpr bool contains_forbidden_domain_code_point( + const char* input, size_t length) noexcept { + size_t i = 0; + uint8_t accumulator{}; + for (; i + 4 <= length; i += 4) { + accumulator |= is_forbidden_domain_code_point_table[uint8_t(input[i])]; + accumulator |= is_forbidden_domain_code_point_table[uint8_t(input[i + 1])]; + accumulator |= is_forbidden_domain_code_point_table[uint8_t(input[i + 2])]; + accumulator |= is_forbidden_domain_code_point_table[uint8_t(input[i + 3])]; + } + for (; i < length; i++) { + accumulator |= is_forbidden_domain_code_point_table[uint8_t(input[i])]; + } + return accumulator; +} + +constexpr static std::array + is_forbidden_domain_code_point_table_or_upper = []() constexpr { + std::array result{}; + for (uint8_t c : {'\0', '\x09', '\x0a', '\x0d', ' ', '#', '/', ':', '<', + '>', '?', '@', '[', '\\', ']', '^', '|', '%'}) { + result[c] = 1; + } + for (uint8_t c = 'A'; c <= 'Z'; c++) { + result[c] = 2; + } + for (uint8_t c = 0; c <= 32; c++) { + result[c] = 1; + } + for (size_t c = 127; c < 255; c++) { + result[c] = 1; + } + return result; + }(); + +ada_really_inline constexpr uint8_t +contains_forbidden_domain_code_point_or_upper(const char* input, + size_t length) noexcept { + size_t i = 0; + uint8_t accumulator{}; + for (; i + 4 <= length; i += 4) { + accumulator |= + is_forbidden_domain_code_point_table_or_upper[uint8_t(input[i])]; + accumulator |= + is_forbidden_domain_code_point_table_or_upper[uint8_t(input[i + 1])]; + accumulator |= + is_forbidden_domain_code_point_table_or_upper[uint8_t(input[i + 2])]; + accumulator |= + is_forbidden_domain_code_point_table_or_upper[uint8_t(input[i + 3])]; + } + for (; i < length; i++) { + accumulator |= + is_forbidden_domain_code_point_table_or_upper[uint8_t(input[i])]; + } + return accumulator; +} + +// std::isalnum(c) || c == '+' || c == '-' || c == '.') is true for +constexpr static std::array is_alnum_plus_table = []() constexpr { + std::array result{}; + for (size_t c = 0; c < 256; c++) { + if (c >= '0' && c <= '9') { + result[c] = true; + } else if (c >= 'a' && c <= 'z') { + result[c] = true; + } else if (c >= 'A' && c <= 'Z') { + result[c] = true; + } else if (c == '+' || c == '-' || c == '.') { + result[c] = true; + } + } + return result; +}(); + +ada_really_inline constexpr bool is_alnum_plus(const char c) noexcept { + return is_alnum_plus_table[uint8_t(c)]; + // A table is almost surely much faster than the + // following under most compilers: return + // return (std::isalnum(c) || c == '+' || c == '-' || c == '.'); +} + +ada_really_inline constexpr bool is_ascii_hex_digit(const char c) noexcept { + return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || + (c >= 'a' && c <= 'f'); +} + +ada_really_inline constexpr bool is_c0_control_or_space(const char c) noexcept { + return (unsigned char)c <= ' '; +} + +ada_really_inline constexpr bool is_ascii_tab_or_newline( + const char c) noexcept { + return c == '\t' || c == '\n' || c == '\r'; +} + +constexpr std::string_view table_is_double_dot_path_segment[] = { + "..", "%2e.", ".%2e", "%2e%2e"}; + +ada_really_inline ada_constexpr bool is_double_dot_path_segment( + std::string_view input) noexcept { + // This will catch most cases: + // The length must be 2,4 or 6. + // We divide by two and require + // that the result be between 1 and 3 inclusively. + uint64_t half_length = uint64_t(input.size()) / 2; + if (half_length - 1 > 2) { + return false; + } + // We have a string of length 2, 4 or 6. + // We now check the first character: + if ((input[0] != '.') && (input[0] != '%')) { + return false; + } + // We are unlikely the get beyond this point. + int hash_value = (input.size() + (unsigned)(input[0])) & 3; + const std::string_view target = table_is_double_dot_path_segment[hash_value]; + if (target.size() != input.size()) { + return false; + } + // We almost never get here. + // Optimizing the rest is relatively unimportant. + auto prefix_equal_unsafe = [](std::string_view a, std::string_view b) { + uint16_t A, B; + memcpy(&A, a.data(), sizeof(A)); + memcpy(&B, b.data(), sizeof(B)); + return A == B; + }; + if (!prefix_equal_unsafe(input, target)) { + return false; + } + for (size_t i = 2; i < input.size(); i++) { + char c = input[i]; + if ((uint8_t((c | 0x20) - 0x61) <= 25 ? (c | 0x20) : c) != target[i]) { + return false; + } + } + return true; + // The above code might be a bit better than the code below. Compilers + // are not stupid and may use the fact that these strings have length 2,4 and + // 6 and other tricks. + // return input == ".." || + // input == ".%2e" || input == ".%2E" || + // input == "%2e." || input == "%2E." || + // input == "%2e%2e" || input == "%2E%2E" || input == "%2E%2e" || input == + // "%2e%2E"; +} + +ada_really_inline constexpr bool is_single_dot_path_segment( + std::string_view input) noexcept { + return input == "." || input == "%2e" || input == "%2E"; +} + +ada_really_inline constexpr bool is_lowercase_hex(const char c) noexcept { + return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f'); +} + +constexpr static char hex_to_binary_table[] = { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, 0, 10, 11, + 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 11, 12, 13, 14, 15}; +unsigned constexpr convert_hex_to_binary(const char c) noexcept { + return hex_to_binary_table[c - '0']; +} + +std::string percent_decode(const std::string_view input, size_t first_percent) { + // next line is for safety only, we expect users to avoid calling + // percent_decode when first_percent is outside the range. + if (first_percent == std::string_view::npos) { + return std::string(input); + } + std::string dest; + dest.reserve(input.length()); + dest.append(input.substr(0, first_percent)); + const char* pointer = input.data() + first_percent; + const char* end = input.data() + input.size(); + // Optimization opportunity: if the following code gets + // called often, it can be optimized quite a bit. + while (pointer < end) { + const char ch = pointer[0]; + size_t remaining = end - pointer - 1; + if (ch != '%' || remaining < 2 || + ( // ch == '%' && // It is unnecessary to check that ch == '%'. + (!is_ascii_hex_digit(pointer[1]) || + !is_ascii_hex_digit(pointer[2])))) { + dest += ch; + pointer++; + continue; + } else { + unsigned a = convert_hex_to_binary(pointer[1]); + unsigned b = convert_hex_to_binary(pointer[2]); + char c = static_cast(a * 16 + b); + dest += c; + pointer += 3; + } + } + return dest; +} + +std::string percent_encode(const std::string_view input, + const uint8_t character_set[]) { + auto pointer = + std::find_if(input.begin(), input.end(), [character_set](const char c) { + return character_sets::bit_at(character_set, c); + }); + // Optimization: Don't iterate if percent encode is not required + if (pointer == input.end()) { + return std::string(input); + } + + std::string result; + result.reserve(input.length()); // in the worst case, percent encoding might + // produce 3 characters. + result.append(input.substr(0, std::distance(input.begin(), pointer))); + + for (; pointer != input.end(); pointer++) { + if (character_sets::bit_at(character_set, *pointer)) { + result.append(character_sets::hex + uint8_t(*pointer) * 4, 3); + } else { + result += *pointer; + } + } + + return result; +} + +template +bool percent_encode(const std::string_view input, const uint8_t character_set[], + std::string& out) { + ada_log("percent_encode ", input, " to output string while ", + append ? "appending" : "overwriting"); + auto pointer = + std::find_if(input.begin(), input.end(), [character_set](const char c) { + return character_sets::bit_at(character_set, c); + }); + ada_log("percent_encode done checking, moved to ", + std::distance(input.begin(), pointer)); + + // Optimization: Don't iterate if percent encode is not required + if (pointer == input.end()) { + ada_log("percent_encode encoding not needed."); + return false; + } + if (!append) { + out.clear(); + } + ada_log("percent_encode appending ", std::distance(input.begin(), pointer), + " bytes"); + out.append(input.data(), std::distance(input.begin(), pointer)); + ada_log("percent_encode processing ", std::distance(pointer, input.end()), + " bytes"); + for (; pointer != input.end(); pointer++) { + if (character_sets::bit_at(character_set, *pointer)) { + out.append(character_sets::hex + uint8_t(*pointer) * 4, 3); + } else { + out += *pointer; + } + } + return true; +} + +bool to_ascii(std::optional& out, const std::string_view plain, + size_t first_percent) { + std::string percent_decoded_buffer; + std::string_view input = plain; + if (first_percent != std::string_view::npos) { + percent_decoded_buffer = unicode::percent_decode(plain, first_percent); + input = percent_decoded_buffer; + } + // input is a non-empty UTF-8 string, must be percent decoded + std::string idna_ascii = ada::idna::to_ascii(input); + if (idna_ascii.empty() || contains_forbidden_domain_code_point( + idna_ascii.data(), idna_ascii.size())) { + return false; + } + out = std::move(idna_ascii); + return true; +} + +std::string percent_encode(const std::string_view input, + const uint8_t character_set[], size_t index) { + std::string out; + out.append(input.data(), index); + auto pointer = input.begin() + index; + for (; pointer != input.end(); pointer++) { + if (character_sets::bit_at(character_set, *pointer)) { + out.append(character_sets::hex + uint8_t(*pointer) * 4, 3); + } else { + out += *pointer; + } + } + return out; +} + +std::string to_unicode(std::string_view input) { + return ada::idna::to_unicode(input); +} + +} // namespace ada::unicode +/* end file src/unicode.cpp */ +/* begin file src/serializers.cpp */ + +#include +#include + +namespace ada::serializers { + +void find_longest_sequence_of_ipv6_pieces( + const std::array& address, size_t& compress, + size_t& compress_length) noexcept { + for (size_t i = 0; i < 8; i++) { + if (address[i] == 0) { + size_t next = i + 1; + while (next != 8 && address[next] == 0) ++next; + const size_t count = next - i; + if (compress_length < count) { + compress_length = count; + compress = i; + if (next == 8) break; + i = next; + } + } + } +} + +std::string ipv6(const std::array& address) noexcept { + size_t compress_length = 0; // The length of a long sequence of zeros. + size_t compress = 0; // The start of a long sequence of zeros. + find_longest_sequence_of_ipv6_pieces(address, compress, compress_length); + + if (compress_length <= 1) { + // Optimization opportunity: Find a faster way then snprintf for imploding + // and return here. + compress = compress_length = 8; + } + + std::string output(4 * 8 + 7 + 2, '\0'); + size_t piece_index = 0; + char* point = output.data(); + char* point_end = output.data() + output.size(); + *point++ = '['; + while (true) { + if (piece_index == compress) { + *point++ = ':'; + // If we skip a value initially, we need to write '::', otherwise + // a single ':' will do since it follows a previous ':'. + if (piece_index == 0) { + *point++ = ':'; + } + piece_index += compress_length; + if (piece_index == 8) { + break; + } + } + point = std::to_chars(point, point_end, address[piece_index], 16).ptr; + piece_index++; + if (piece_index == 8) { + break; + } + *point++ = ':'; + } + *point++ = ']'; + output.resize(point - output.data()); + return output; +} + +std::string ipv4(const uint64_t address) noexcept { + std::string output(15, '\0'); + char* point = output.data(); + char* point_end = output.data() + output.size(); + point = std::to_chars(point, point_end, uint8_t(address >> 24)).ptr; + for (int i = 2; i >= 0; i--) { + *point++ = '.'; + point = std::to_chars(point, point_end, uint8_t(address >> (i * 8))).ptr; + } + output.resize(point - output.data()); + return output; +} + +} // namespace ada::serializers +/* end file src/serializers.cpp */ +/* begin file src/implementation.cpp */ +#include + + +namespace ada { + +template +ada_warn_unused tl::expected parse( + std::string_view input, const result_type* base_url) { + result_type u = ada::parser::parse_url(input, base_url); + if (!u.is_valid) { + return tl::unexpected(errors::generic_error); + } + return u; +} + +template ada::result parse(std::string_view input, + const url* base_url = nullptr); +template ada::result parse( + std::string_view input, const url_aggregator* base_url = nullptr); + +std::string href_from_file(std::string_view input) { + // This is going to be much faster than constructing a URL. + std::string tmp_buffer; + std::string_view internal_input; + if (unicode::has_tabs_or_newline(input)) { + tmp_buffer = input; + helpers::remove_ascii_tab_or_newline(tmp_buffer); + internal_input = tmp_buffer; + } else { + internal_input = input; + } + std::string path; + if (internal_input.empty()) { + path = "/"; + } else if ((internal_input[0] == '/') || (internal_input[0] == '\\')) { + helpers::parse_prepared_path(internal_input.substr(1), + ada::scheme::type::FILE, path); + } else { + helpers::parse_prepared_path(internal_input, ada::scheme::type::FILE, path); + } + return "file://" + path; +} + +bool can_parse(std::string_view input, const std::string_view* base_input) { + ada::result base; + ada::url_aggregator* base_pointer = nullptr; + if (base_input != nullptr) { + base = ada::parse(*base_input); + if (!base) { + return false; + } + base_pointer = &base.value(); + } + return ada::parse(input, base_pointer).has_value(); +} + +ada_warn_unused std::string to_string(ada::encoding_type type) { + switch (type) { + case ada::encoding_type::UTF8: + return "UTF-8"; + case ada::encoding_type::UTF_16LE: + return "UTF-16LE"; + case ada::encoding_type::UTF_16BE: + return "UTF-16BE"; + default: + unreachable(); + } +} + +} // namespace ada +/* end file src/implementation.cpp */ +/* begin file src/helpers.cpp */ + +#include +#include +#include +#include + +namespace ada::helpers { + +template +void encode_json(std::string_view view, out_iter out) { + // trivial implementation. could be faster. + const char* hexvalues = + "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"; + for (uint8_t c : view) { + if (c == '\\') { + *out++ = '\\'; + *out++ = '\\'; + } else if (c == '"') { + *out++ = '\\'; + *out++ = '"'; + } else if (c <= 0x1f) { + *out++ = '\\'; + *out++ = 'u'; + *out++ = '0'; + *out++ = '0'; + *out++ = hexvalues[2 * c]; + *out++ = hexvalues[2 * c + 1]; + } else { + *out++ = c; + } + } +} + +ada_unused std::string get_state(ada::state s) { + switch (s) { + case ada::state::AUTHORITY: + return "Authority"; + case ada::state::SCHEME_START: + return "Scheme Start"; + case ada::state::SCHEME: + return "Scheme"; + case ada::state::HOST: + return "Host"; + case ada::state::NO_SCHEME: + return "No Scheme"; + case ada::state::FRAGMENT: + return "Fragment"; + case ada::state::RELATIVE_SCHEME: + return "Relative Scheme"; + case ada::state::RELATIVE_SLASH: + return "Relative Slash"; + case ada::state::FILE: + return "File"; + case ada::state::FILE_HOST: + return "File Host"; + case ada::state::FILE_SLASH: + return "File Slash"; + case ada::state::PATH_OR_AUTHORITY: + return "Path or Authority"; + case ada::state::SPECIAL_AUTHORITY_IGNORE_SLASHES: + return "Special Authority Ignore Slashes"; + case ada::state::SPECIAL_AUTHORITY_SLASHES: + return "Special Authority Slashes"; + case ada::state::SPECIAL_RELATIVE_OR_AUTHORITY: + return "Special Relative or Authority"; + case ada::state::QUERY: + return "Query"; + case ada::state::PATH: + return "Path"; + case ada::state::PATH_START: + return "Path Start"; + case ada::state::OPAQUE_PATH: + return "Opaque Path"; + case ada::state::PORT: + return "Port"; + default: + return "unknown state"; + } +} + +ada_really_inline std::optional prune_hash( + std::string_view& input) noexcept { + // compiles down to 20--30 instructions including a class to memchr (C + // function). this function should be quite fast. + size_t location_of_first = input.find('#'); + if (location_of_first == std::string_view::npos) { + return std::nullopt; + } + std::string_view hash = input; + hash.remove_prefix(location_of_first + 1); + input.remove_suffix(input.size() - location_of_first); + return hash; +} + +ada_really_inline bool shorten_path(std::string& path, + ada::scheme::type type) noexcept { + size_t first_delimiter = path.find_first_of('/', 1); + + // Let path be url's path. + // If url's scheme is "file", path's size is 1, and path[0] is a normalized + // Windows drive letter, then return. + if (type == ada::scheme::type::FILE && + first_delimiter == std::string_view::npos && !path.empty()) { + if (checkers::is_normalized_windows_drive_letter( + helpers::substring(path, 1))) { + return false; + } + } + + // Remove path's last item, if any. + size_t last_delimiter = path.rfind('/'); + if (last_delimiter != std::string::npos) { + path.erase(last_delimiter); + return true; + } + + return false; +} + +ada_really_inline bool shorten_path(std::string_view& path, + ada::scheme::type type) noexcept { + size_t first_delimiter = path.find_first_of('/', 1); + + // Let path be url's path. + // If url's scheme is "file", path's size is 1, and path[0] is a normalized + // Windows drive letter, then return. + if (type == ada::scheme::type::FILE && + first_delimiter == std::string_view::npos && !path.empty()) { + if (checkers::is_normalized_windows_drive_letter( + helpers::substring(path, 1))) { + return false; + } + } + + // Remove path's last item, if any. + if (!path.empty()) { + size_t slash_loc = path.rfind('/'); + if (slash_loc != std::string_view::npos) { + path.remove_suffix(path.size() - slash_loc); + return true; + } + } + + return false; +} + +ada_really_inline void remove_ascii_tab_or_newline( + std::string& input) noexcept { + // if this ever becomes a performance issue, we could use an approach similar + // to has_tabs_or_newline + input.erase(std::remove_if(input.begin(), input.end(), + [](char c) { + return ada::unicode::is_ascii_tab_or_newline(c); + }), + input.end()); +} + +ada_really_inline std::string_view substring(std::string_view input, + size_t pos) noexcept { + ADA_ASSERT_TRUE(pos <= input.size()); + // The following is safer but unneeded if we have the above line: + // return pos > input.size() ? std::string_view() : input.substr(pos); + return input.substr(pos); +} + +ada_really_inline void resize(std::string_view& input, size_t pos) noexcept { + ADA_ASSERT_TRUE(pos <= input.size()); + input.remove_suffix(input.size() - pos); +} + +// computes the number of trailing zeroes +// this is a private inline function only defined in this source file. +ada_really_inline int trailing_zeroes(uint32_t input_num) noexcept { +#ifdef ADA_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward(&ret, input_num); + return (int)ret; +#else // ADA_REGULAR_VISUAL_STUDIO + return __builtin_ctzl(input_num); +#endif // ADA_REGULAR_VISUAL_STUDIO +} + +// starting at index location, this finds the next location of a character +// :, /, \\, ? or [. If none is found, view.size() is returned. +// For use within get_host_delimiter_location. +#if ADA_NEON +// The ada_make_uint8x16_t macro is necessary because Visual Studio does not +// support direct initialization of uint8x16_t. See +// https://developercommunity.visualstudio.com/t/error-C2078:-too-many-initializers-whe/402911?q=backend+neon +#ifndef ada_make_uint8x16_t +#define ada_make_uint8x16_t(x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, \ + x13, x14, x15, x16) \ + ([=]() { \ + static uint8_t array[16] = {x1, x2, x3, x4, x5, x6, x7, x8, \ + x9, x10, x11, x12, x13, x14, x15, x16}; \ + return vld1q_u8(array); \ + }()) +#endif + +ada_really_inline size_t find_next_host_delimiter_special( + std::string_view view, size_t location) noexcept { + // first check for short strings in which case we do it naively. + if (view.size() - location < 16) { // slow path + for (size_t i = location; i < view.size(); i++) { + if (view[i] == ':' || view[i] == '/' || view[i] == '\\' || + view[i] == '?' || view[i] == '[') { + return i; + } + } + return size_t(view.size()); + } + auto to_bitmask = [](uint8x16_t input) -> uint16_t { + uint8x16_t bit_mask = + ada_make_uint8x16_t(0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, 0x01, + 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80); + uint8x16_t minput = vandq_u8(input, bit_mask); + uint8x16_t tmp = vpaddq_u8(minput, minput); + tmp = vpaddq_u8(tmp, tmp); + tmp = vpaddq_u8(tmp, tmp); + return vgetq_lane_u16(vreinterpretq_u16_u8(tmp), 0); + }; + + // fast path for long strings (expected to be common) + size_t i = location; + uint8x16_t low_mask = + ada_make_uint8x16_t(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x01, 0x04, 0x04, 0x00, 0x00, 0x03); + uint8x16_t high_mask = + ada_make_uint8x16_t(0x00, 0x00, 0x02, 0x01, 0x00, 0x04, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00); + uint8x16_t fmask = vmovq_n_u8(0xf); + uint8x16_t zero{0}; + for (; i + 15 < view.size(); i += 16) { + uint8x16_t word = vld1q_u8((const uint8_t*)view.data() + i); + uint8x16_t lowpart = vqtbl1q_u8(low_mask, vandq_u8(word, fmask)); + uint8x16_t highpart = vqtbl1q_u8(high_mask, vshrq_n_u8(word, 4)); + uint8x16_t classify = vandq_u8(lowpart, highpart); + if (vmaxvq_u8(classify) != 0) { + uint8x16_t is_zero = vceqq_u8(classify, zero); + uint16_t is_non_zero = ~to_bitmask(is_zero); + return i + trailing_zeroes(is_non_zero); + } + } + + if (i < view.size()) { + uint8x16_t word = + vld1q_u8((const uint8_t*)view.data() + view.length() - 16); + uint8x16_t lowpart = vqtbl1q_u8(low_mask, vandq_u8(word, fmask)); + uint8x16_t highpart = vqtbl1q_u8(high_mask, vshrq_n_u8(word, 4)); + uint8x16_t classify = vandq_u8(lowpart, highpart); + if (vmaxvq_u8(classify) != 0) { + uint8x16_t is_zero = vceqq_u8(classify, zero); + uint16_t is_non_zero = ~to_bitmask(is_zero); + return view.length() - 16 + trailing_zeroes(is_non_zero); + } + } + return size_t(view.size()); +} +#elif ADA_SSE2 +ada_really_inline size_t find_next_host_delimiter_special( + std::string_view view, size_t location) noexcept { + // first check for short strings in which case we do it naively. + if (view.size() - location < 16) { // slow path + for (size_t i = location; i < view.size(); i++) { + if (view[i] == ':' || view[i] == '/' || view[i] == '\\' || + view[i] == '?' || view[i] == '[') { + return i; + } + } + return size_t(view.size()); + } + // fast path for long strings (expected to be common) + size_t i = location; + const __m128i mask1 = _mm_set1_epi8(':'); + const __m128i mask2 = _mm_set1_epi8('/'); + const __m128i mask3 = _mm_set1_epi8('\\'); + const __m128i mask4 = _mm_set1_epi8('?'); + const __m128i mask5 = _mm_set1_epi8('['); + + for (; i + 15 < view.size(); i += 16) { + __m128i word = _mm_loadu_si128((const __m128i*)(view.data() + i)); + __m128i m1 = _mm_cmpeq_epi8(word, mask1); + __m128i m2 = _mm_cmpeq_epi8(word, mask2); + __m128i m3 = _mm_cmpeq_epi8(word, mask3); + __m128i m4 = _mm_cmpeq_epi8(word, mask4); + __m128i m5 = _mm_cmpeq_epi8(word, mask5); + __m128i m = _mm_or_si128( + _mm_or_si128(_mm_or_si128(m1, m2), _mm_or_si128(m3, m4)), m5); + int mask = _mm_movemask_epi8(m); + if (mask != 0) { + return i + trailing_zeroes(mask); + } + } + if (i < view.size()) { + __m128i word = + _mm_loadu_si128((const __m128i*)(view.data() + view.length() - 16)); + __m128i m1 = _mm_cmpeq_epi8(word, mask1); + __m128i m2 = _mm_cmpeq_epi8(word, mask2); + __m128i m3 = _mm_cmpeq_epi8(word, mask3); + __m128i m4 = _mm_cmpeq_epi8(word, mask4); + __m128i m5 = _mm_cmpeq_epi8(word, mask5); + __m128i m = _mm_or_si128( + _mm_or_si128(_mm_or_si128(m1, m2), _mm_or_si128(m3, m4)), m5); + int mask = _mm_movemask_epi8(m); + if (mask != 0) { + return view.length() - 16 + trailing_zeroes(mask); + } + } + return size_t(view.length()); +} +#else +// : / [ \\ ? +static constexpr std::array special_host_delimiters = + []() constexpr { + std::array result{}; + for (int i : {':', '/', '[', '\\', '?'}) { + result[i] = 1; + } + return result; + }(); +// credit: @the-moisrex recommended a table-based approach +ada_really_inline size_t find_next_host_delimiter_special( + std::string_view view, size_t location) noexcept { + auto const str = view.substr(location); + for (auto pos = str.begin(); pos != str.end(); ++pos) { + if (special_host_delimiters[(uint8_t)*pos]) { + return pos - str.begin() + location; + } + } + return size_t(view.size()); +} +#endif + +// starting at index location, this finds the next location of a character +// :, /, ? or [. If none is found, view.size() is returned. +// For use within get_host_delimiter_location. +#if ADA_NEON +ada_really_inline size_t find_next_host_delimiter(std::string_view view, + size_t location) noexcept { + // first check for short strings in which case we do it naively. + if (view.size() - location < 16) { // slow path + for (size_t i = location; i < view.size(); i++) { + if (view[i] == ':' || view[i] == '/' || view[i] == '?' || + view[i] == '[') { + return i; + } + } + return size_t(view.size()); + } + auto to_bitmask = [](uint8x16_t input) -> uint16_t { + uint8x16_t bit_mask = + ada_make_uint8x16_t(0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, 0x01, + 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80); + uint8x16_t minput = vandq_u8(input, bit_mask); + uint8x16_t tmp = vpaddq_u8(minput, minput); + tmp = vpaddq_u8(tmp, tmp); + tmp = vpaddq_u8(tmp, tmp); + return vgetq_lane_u16(vreinterpretq_u16_u8(tmp), 0); + }; + + // fast path for long strings (expected to be common) + size_t i = location; + uint8x16_t low_mask = + ada_make_uint8x16_t(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x01, 0x04, 0x00, 0x00, 0x00, 0x03); + uint8x16_t high_mask = + ada_make_uint8x16_t(0x00, 0x00, 0x02, 0x01, 0x00, 0x04, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00); + uint8x16_t fmask = vmovq_n_u8(0xf); + uint8x16_t zero{0}; + for (; i + 15 < view.size(); i += 16) { + uint8x16_t word = vld1q_u8((const uint8_t*)view.data() + i); + uint8x16_t lowpart = vqtbl1q_u8(low_mask, vandq_u8(word, fmask)); + uint8x16_t highpart = vqtbl1q_u8(high_mask, vshrq_n_u8(word, 4)); + uint8x16_t classify = vandq_u8(lowpart, highpart); + if (vmaxvq_u8(classify) != 0) { + uint8x16_t is_zero = vceqq_u8(classify, zero); + uint16_t is_non_zero = ~to_bitmask(is_zero); + return i + trailing_zeroes(is_non_zero); + } + } + + if (i < view.size()) { + uint8x16_t word = + vld1q_u8((const uint8_t*)view.data() + view.length() - 16); + uint8x16_t lowpart = vqtbl1q_u8(low_mask, vandq_u8(word, fmask)); + uint8x16_t highpart = vqtbl1q_u8(high_mask, vshrq_n_u8(word, 4)); + uint8x16_t classify = vandq_u8(lowpart, highpart); + if (vmaxvq_u8(classify) != 0) { + uint8x16_t is_zero = vceqq_u8(classify, zero); + uint16_t is_non_zero = ~to_bitmask(is_zero); + return view.length() - 16 + trailing_zeroes(is_non_zero); + } + } + return size_t(view.size()); +} +#elif ADA_SSE2 +ada_really_inline size_t find_next_host_delimiter(std::string_view view, + size_t location) noexcept { + // first check for short strings in which case we do it naively. + if (view.size() - location < 16) { // slow path + for (size_t i = location; i < view.size(); i++) { + if (view[i] == ':' || view[i] == '/' || view[i] == '?' || + view[i] == '[') { + return i; + } + } + return size_t(view.size()); + } + // fast path for long strings (expected to be common) + size_t i = location; + const __m128i mask1 = _mm_set1_epi8(':'); + const __m128i mask2 = _mm_set1_epi8('/'); + const __m128i mask4 = _mm_set1_epi8('?'); + const __m128i mask5 = _mm_set1_epi8('['); + + for (; i + 15 < view.size(); i += 16) { + __m128i word = _mm_loadu_si128((const __m128i*)(view.data() + i)); + __m128i m1 = _mm_cmpeq_epi8(word, mask1); + __m128i m2 = _mm_cmpeq_epi8(word, mask2); + __m128i m4 = _mm_cmpeq_epi8(word, mask4); + __m128i m5 = _mm_cmpeq_epi8(word, mask5); + __m128i m = _mm_or_si128(_mm_or_si128(m1, m2), _mm_or_si128(m4, m5)); + int mask = _mm_movemask_epi8(m); + if (mask != 0) { + return i + trailing_zeroes(mask); + } + } + if (i < view.size()) { + __m128i word = + _mm_loadu_si128((const __m128i*)(view.data() + view.length() - 16)); + __m128i m1 = _mm_cmpeq_epi8(word, mask1); + __m128i m2 = _mm_cmpeq_epi8(word, mask2); + __m128i m4 = _mm_cmpeq_epi8(word, mask4); + __m128i m5 = _mm_cmpeq_epi8(word, mask5); + __m128i m = _mm_or_si128(_mm_or_si128(m1, m2), _mm_or_si128(m4, m5)); + int mask = _mm_movemask_epi8(m); + if (mask != 0) { + return view.length() - 16 + trailing_zeroes(mask); + } + } + return size_t(view.length()); +} +#else +// : / [ ? +static constexpr std::array host_delimiters = []() constexpr { + std::array result{}; + for (int i : {':', '/', '?', '['}) { + result[i] = 1; + } + return result; +}(); +// credit: @the-moisrex recommended a table-based approach +ada_really_inline size_t find_next_host_delimiter(std::string_view view, + size_t location) noexcept { + auto const str = view.substr(location); + for (auto pos = str.begin(); pos != str.end(); ++pos) { + if (host_delimiters[(uint8_t)*pos]) { + return pos - str.begin() + location; + } + } + return size_t(view.size()); +} +#endif + +ada_really_inline std::pair get_host_delimiter_location( + const bool is_special, std::string_view& view) noexcept { + /** + * The spec at https://url.spec.whatwg.org/#hostname-state expects us to + * compute a variable called insideBrackets but this variable is only used + * once, to check whether a ':' character was found outside brackets. Exact + * text: "Otherwise, if c is U+003A (:) and insideBrackets is false, then:". + * It is conceptually simpler and arguably more efficient to just return a + * Boolean indicating whether ':' was found outside brackets. + */ + const size_t view_size = view.size(); + size_t location = 0; + bool found_colon = false; + /** + * Performance analysis: + * + * We are basically seeking the end of the hostname which can be indicated + * by the end of the view, or by one of the characters ':', '/', '?', '\\' + * (where '\\' is only applicable for special URLs). However, these must + * appear outside a bracket range. E.g., if you have [something?]fd: then the + * '?' does not count. + * + * So we can skip ahead to the next delimiter, as long as we include '[' in + * the set of delimiters, and that we handle it first. + * + * So the trick is to have a fast function that locates the next delimiter. + * Unless we find '[', then it only needs to be called once! Ideally, such a + * function would be provided by the C++ standard library, but it seems that + * find_first_of is not very fast, so we are forced to roll our own. + * + * We do not break into two loops for speed, but for clarity. + */ + if (is_special) { + // We move to the next delimiter. + location = find_next_host_delimiter_special(view, location); + // Unless we find '[' then we are going only going to have to call + // find_next_host_delimiter_special once. + for (; location < view_size; + location = find_next_host_delimiter_special(view, location)) { + if (view[location] == '[') { + location = view.find(']', location); + if (location == std::string_view::npos) { + // performance: view.find might get translated to a memchr, which + // has no notion of std::string_view::npos, so the code does not + // reflect the assembly. + location = view_size; + break; + } + } else { + found_colon = view[location] == ':'; + break; + } + } + } else { + // We move to the next delimiter. + location = find_next_host_delimiter(view, location); + // Unless we find '[' then we are going only going to have to call + // find_next_host_delimiter_special once. + for (; location < view_size; + location = find_next_host_delimiter(view, location)) { + if (view[location] == '[') { + location = view.find(']', location); + if (location == std::string_view::npos) { + // performance: view.find might get translated to a memchr, which + // has no notion of std::string_view::npos, so the code does not + // reflect the assembly. + location = view_size; + break; + } + } else { + found_colon = view[location] == ':'; + break; + } + } + } + // performance: remove_suffix may translate into a single instruction. + view.remove_suffix(view_size - location); + return {location, found_colon}; +} + +ada_really_inline void trim_c0_whitespace(std::string_view& input) noexcept { + while (!input.empty() && + ada::unicode::is_c0_control_or_space(input.front())) { + input.remove_prefix(1); + } + while (!input.empty() && ada::unicode::is_c0_control_or_space(input.back())) { + input.remove_suffix(1); + } +} + +ada_really_inline void parse_prepared_path(std::string_view input, + ada::scheme::type type, + std::string& path) { + ada_log("parse_prepared_path ", input); + uint8_t accumulator = checkers::path_signature(input); + // Let us first detect a trivial case. + // If it is special, we check that we have no dot, no %, no \ and no + // character needing percent encoding. Otherwise, we check that we have no %, + // no dot, and no character needing percent encoding. + constexpr uint8_t need_encoding = 1; + constexpr uint8_t backslash_char = 2; + constexpr uint8_t dot_char = 4; + constexpr uint8_t percent_char = 8; + bool special = type != ada::scheme::NOT_SPECIAL; + bool may_need_slow_file_handling = (type == ada::scheme::type::FILE && + checkers::is_windows_drive_letter(input)); + bool trivial_path = + (special ? (accumulator == 0) + : ((accumulator & (need_encoding | dot_char | percent_char)) == + 0)) && + (!may_need_slow_file_handling); + if (accumulator == dot_char && !may_need_slow_file_handling) { + // '4' means that we have at least one dot, but nothing that requires + // percent encoding or decoding. The only part that is not trivial is + // that we may have single dots and double dots path segments. + // If we have such segments, then we either have a path that begins + // with '.' (easy to check), or we have the sequence './'. + // Note: input cannot be empty, it must at least contain one character ('.') + // Note: we know that '\' is not present. + if (input[0] != '.') { + size_t slashdot = input.find("/."); + if (slashdot == std::string_view::npos) { // common case + trivial_path = true; + } else { // uncommon + // only three cases matter: /./, /.. or a final / + trivial_path = + !(slashdot + 2 == input.size() || input[slashdot + 2] == '.' || + input[slashdot + 2] == '/'); + } + } + } + if (trivial_path) { + ada_log("parse_path trivial"); + path += '/'; + path += input; + return; + } + // We are going to need to look a bit at the path, but let us see if we can + // ignore percent encoding *and* backslashes *and* percent characters. + // Except for the trivial case, this is likely to capture 99% of paths out + // there. + bool fast_path = + (special && + (accumulator & (need_encoding | backslash_char | percent_char)) == 0) && + (type != ada::scheme::type::FILE); + if (fast_path) { + ada_log("parse_prepared_path fast"); + // Here we don't need to worry about \ or percent encoding. + // We also do not have a file protocol. We might have dots, however, + // but dots must as appear as '.', and they cannot be encoded because + // the symbol '%' is not present. + size_t previous_location = 0; // We start at 0. + do { + size_t new_location = input.find('/', previous_location); + // std::string_view path_view = input; + // We process the last segment separately: + if (new_location == std::string_view::npos) { + std::string_view path_view = input.substr(previous_location); + if (path_view == "..") { // The path ends with .. + // e.g., if you receive ".." with an empty path, you go to "/". + if (path.empty()) { + path = '/'; + return; + } + // Fast case where we have nothing to do: + if (path.back() == '/') { + return; + } + // If you have the path "/joe/myfriend", + // then you delete 'myfriend'. + path.resize(path.rfind('/') + 1); + return; + } + path += '/'; + if (path_view != ".") { + path.append(path_view); + } + return; + } else { + // This is a non-final segment. + std::string_view path_view = + input.substr(previous_location, new_location - previous_location); + previous_location = new_location + 1; + if (path_view == "..") { + size_t last_delimiter = path.rfind('/'); + if (last_delimiter != std::string::npos) { + path.erase(last_delimiter); + } + } else if (path_view != ".") { + path += '/'; + path.append(path_view); + } + } + } while (true); + } else { + ada_log("parse_path slow"); + // we have reached the general case + bool needs_percent_encoding = (accumulator & 1); + std::string path_buffer_tmp; + do { + size_t location = (special && (accumulator & 2)) + ? input.find_first_of("/\\") + : input.find('/'); + std::string_view path_view = input; + if (location != std::string_view::npos) { + path_view.remove_suffix(path_view.size() - location); + input.remove_prefix(location + 1); + } + // path_buffer is either path_view or it might point at a percent encoded + // temporary file. + std::string_view path_buffer = + (needs_percent_encoding && + ada::unicode::percent_encode( + path_view, character_sets::PATH_PERCENT_ENCODE, path_buffer_tmp)) + ? path_buffer_tmp + : path_view; + if (unicode::is_double_dot_path_segment(path_buffer)) { + if ((helpers::shorten_path(path, type) || special) && + location == std::string_view::npos) { + path += '/'; + } + } else if (unicode::is_single_dot_path_segment(path_buffer) && + (location == std::string_view::npos)) { + path += '/'; + } + // Otherwise, if path_buffer is not a single-dot path segment, then: + else if (!unicode::is_single_dot_path_segment(path_buffer)) { + // If url's scheme is "file", url's path is empty, and path_buffer is a + // Windows drive letter, then replace the second code point in + // path_buffer with U+003A (:). + if (type == ada::scheme::type::FILE && path.empty() && + checkers::is_windows_drive_letter(path_buffer)) { + path += '/'; + path += path_buffer[0]; + path += ':'; + path_buffer.remove_prefix(2); + path.append(path_buffer); + } else { + // Append path_buffer to url's path. + path += '/'; + path.append(path_buffer); + } + } + if (location == std::string_view::npos) { + return; + } + } while (true); + } +} + +bool overlaps(std::string_view input1, const std::string& input2) noexcept { + ada_log("helpers::overlaps check if string_view '", input1, "' [", + input1.size(), " bytes] is part of string '", input2, "' [", + input2.size(), " bytes]"); + return !input1.empty() && !input2.empty() && input1.data() >= input2.data() && + input1.data() < input2.data() + input2.size(); +} + +template +ada_really_inline void strip_trailing_spaces_from_opaque_path( + url_type& url) noexcept { + ada_log("helpers::strip_trailing_spaces_from_opaque_path"); + if (!url.has_opaque_path) return; + if (url.has_hash()) return; + if (url.has_search()) return; + + auto path = std::string(url.get_pathname()); + while (!path.empty() && path.back() == ' ') { + path.resize(path.size() - 1); + } + url.update_base_pathname(path); +} + +// @ / \\ ? +static constexpr std::array authority_delimiter_special = + []() constexpr { + std::array result{}; + for (int i : {'@', '/', '\\', '?'}) { + result[i] = 1; + } + return result; + }(); +// credit: @the-moisrex recommended a table-based approach +ada_really_inline size_t +find_authority_delimiter_special(std::string_view view) noexcept { + // performance note: we might be able to gain further performance + // with SIMD instrinsics. + for (auto pos = view.begin(); pos != view.end(); ++pos) { + if (authority_delimiter_special[(uint8_t)*pos]) { + return pos - view.begin(); + } + } + return size_t(view.size()); +} + +// @ / ? +static constexpr std::array authority_delimiter = []() constexpr { + std::array result{}; + for (int i : {'@', '/', '?'}) { + result[i] = 1; + } + return result; +}(); +// credit: @the-moisrex recommended a table-based approach +ada_really_inline size_t +find_authority_delimiter(std::string_view view) noexcept { + // performance note: we might be able to gain further performance + // with SIMD instrinsics. + for (auto pos = view.begin(); pos != view.end(); ++pos) { + if (authority_delimiter[(uint8_t)*pos]) { + return pos - view.begin(); + } + } + return size_t(view.size()); +} + +} // namespace ada::helpers + +namespace ada { +ada_warn_unused std::string to_string(ada::state state) { + return ada::helpers::get_state(state); +} +#undef ada_make_uint8x16_t +} // namespace ada +/* end file src/helpers.cpp */ +/* begin file src/url.cpp */ + +#include +#include +#include + +namespace ada { + +bool url::parse_opaque_host(std::string_view input) { + ada_log("parse_opaque_host ", input, "[", input.size(), " bytes]"); + if (std::any_of(input.begin(), input.end(), + ada::unicode::is_forbidden_host_code_point)) { + return is_valid = false; + } + + // Return the result of running UTF-8 percent-encode on input using the C0 + // control percent-encode set. + host = ada::unicode::percent_encode( + input, ada::character_sets::C0_CONTROL_PERCENT_ENCODE); + return true; +} + +bool url::parse_ipv4(std::string_view input) { + ada_log("parse_ipv4 ", input, "[", input.size(), " bytes]"); + if (input.back() == '.') { + input.remove_suffix(1); + } + size_t digit_count{0}; + int pure_decimal_count = 0; // entries that are decimal + std::string_view original_input = + input; // we might use this if pure_decimal_count == 4. + uint64_t ipv4{0}; + // we could unroll for better performance? + for (; (digit_count < 4) && !(input.empty()); digit_count++) { + uint32_t + segment_result{}; // If any number exceeds 32 bits, we have an error. + bool is_hex = checkers::has_hex_prefix(input); + if (is_hex && ((input.length() == 2) || + ((input.length() > 2) && (input[2] == '.')))) { + // special case + segment_result = 0; + input.remove_prefix(2); + } else { + std::from_chars_result r; + if (is_hex) { + r = std::from_chars(input.data() + 2, input.data() + input.size(), + segment_result, 16); + } else if ((input.length() >= 2) && input[0] == '0' && + checkers::is_digit(input[1])) { + r = std::from_chars(input.data() + 1, input.data() + input.size(), + segment_result, 8); + } else { + pure_decimal_count++; + r = std::from_chars(input.data(), input.data() + input.size(), + segment_result, 10); + } + if (r.ec != std::errc()) { + return is_valid = false; + } + input.remove_prefix(r.ptr - input.data()); + } + if (input.empty()) { + // We have the last value. + // At this stage, ipv4 contains digit_count*8 bits. + // So we have 32-digit_count*8 bits left. + if (segment_result > (uint64_t(1) << (32 - digit_count * 8))) { + return is_valid = false; + } + ipv4 <<= (32 - digit_count * 8); + ipv4 |= segment_result; + goto final; + } else { + // There is more, so that the value must no be larger than 255 + // and we must have a '.'. + if ((segment_result > 255) || (input[0] != '.')) { + return is_valid = false; + } + ipv4 <<= 8; + ipv4 |= segment_result; + input.remove_prefix(1); // remove '.' + } + } + if ((digit_count != 4) || (!input.empty())) { + return is_valid = false; + } +final: + // We could also check r.ptr to see where the parsing ended. + if (pure_decimal_count == 4) { + host = original_input; // The original input was already all decimal and we + // validated it. + } else { + host = ada::serializers::ipv4(ipv4); // We have to reserialize the address. + } + host_type = IPV4; + return true; +} + +bool url::parse_ipv6(std::string_view input) { + ada_log("parse_ipv6 ", input, "[", input.size(), " bytes]"); + + if (input.empty()) { + return is_valid = false; + } + // Let address be a new IPv6 address whose IPv6 pieces are all 0. + std::array address{}; + + // Let pieceIndex be 0. + int piece_index = 0; + + // Let compress be null. + std::optional compress{}; + + // Let pointer be a pointer for input. + std::string_view::iterator pointer = input.begin(); + + // If c is U+003A (:), then: + if (input[0] == ':') { + // If remaining does not start with U+003A (:), validation error, return + // failure. + if (input.size() == 1 || input[1] != ':') { + ada_log("parse_ipv6 starts with : but the rest does not start with :"); + return is_valid = false; + } + + // Increase pointer by 2. + pointer += 2; + + // Increase pieceIndex by 1 and then set compress to pieceIndex. + compress = ++piece_index; + } + + // While c is not the EOF code point: + while (pointer != input.end()) { + // If pieceIndex is 8, validation error, return failure. + if (piece_index == 8) { + ada_log("parse_ipv6 piece_index == 8"); + return is_valid = false; + } + + // If c is U+003A (:), then: + if (*pointer == ':') { + // If compress is non-null, validation error, return failure. + if (compress.has_value()) { + ada_log("parse_ipv6 compress is non-null"); + return is_valid = false; + } + + // Increase pointer and pieceIndex by 1, set compress to pieceIndex, and + // then continue. + pointer++; + compress = ++piece_index; + continue; + } + + // Let value and length be 0. + uint16_t value = 0, length = 0; + + // While length is less than 4 and c is an ASCII hex digit, + // set value to value times 0x10 + c interpreted as hexadecimal number, and + // increase pointer and length by 1. + while (length < 4 && pointer != input.end() && + unicode::is_ascii_hex_digit(*pointer)) { + // https://stackoverflow.com/questions/39060852/why-does-the-addition-of-two-shorts-return-an-int + value = uint16_t(value * 0x10 + unicode::convert_hex_to_binary(*pointer)); + pointer++; + length++; + } + + // If c is U+002E (.), then: + if (pointer != input.end() && *pointer == '.') { + // If length is 0, validation error, return failure. + if (length == 0) { + ada_log("parse_ipv6 length is 0"); + return is_valid = false; + } + + // Decrease pointer by length. + pointer -= length; + + // If pieceIndex is greater than 6, validation error, return failure. + if (piece_index > 6) { + ada_log("parse_ipv6 piece_index > 6"); + return is_valid = false; + } + + // Let numbersSeen be 0. + int numbers_seen = 0; + + // While c is not the EOF code point: + while (pointer != input.end()) { + // Let ipv4Piece be null. + std::optional ipv4_piece{}; + + // If numbersSeen is greater than 0, then: + if (numbers_seen > 0) { + // If c is a U+002E (.) and numbersSeen is less than 4, then increase + // pointer by 1. + if (*pointer == '.' && numbers_seen < 4) { + pointer++; + } + // Otherwise, validation error, return failure. + else { + ada_log("parse_ipv6 Otherwise, validation error, return failure"); + return is_valid = false; + } + } + + // If c is not an ASCII digit, validation error, return failure. + if (pointer == input.end() || !checkers::is_digit(*pointer)) { + ada_log( + "parse_ipv6 If c is not an ASCII digit, validation error, return " + "failure"); + return is_valid = false; + } + + // While c is an ASCII digit: + while (pointer != input.end() && checkers::is_digit(*pointer)) { + // Let number be c interpreted as decimal number. + int number = *pointer - '0'; + + // If ipv4Piece is null, then set ipv4Piece to number. + if (!ipv4_piece.has_value()) { + ipv4_piece = number; + } + // Otherwise, if ipv4Piece is 0, validation error, return failure. + else if (ipv4_piece == 0) { + ada_log("parse_ipv6 if ipv4Piece is 0, validation error"); + return is_valid = false; + } + // Otherwise, set ipv4Piece to ipv4Piece times 10 + number. + else { + ipv4_piece = *ipv4_piece * 10 + number; + } + + // If ipv4Piece is greater than 255, validation error, return failure. + if (ipv4_piece > 255) { + ada_log("parse_ipv6 ipv4_piece > 255"); + return is_valid = false; + } + + // Increase pointer by 1. + pointer++; + } + + // Set address[pieceIndex] to address[pieceIndex] times 0x100 + + // ipv4Piece. + // https://stackoverflow.com/questions/39060852/why-does-the-addition-of-two-shorts-return-an-int + address[piece_index] = + uint16_t(address[piece_index] * 0x100 + *ipv4_piece); + + // Increase numbersSeen by 1. + numbers_seen++; + + // If numbersSeen is 2 or 4, then increase pieceIndex by 1. + if (numbers_seen == 2 || numbers_seen == 4) { + piece_index++; + } + } + + // If numbersSeen is not 4, validation error, return failure. + if (numbers_seen != 4) { + return is_valid = false; + } + + // Break. + break; + } + // Otherwise, if c is U+003A (:): + else if ((pointer != input.end()) && (*pointer == ':')) { + // Increase pointer by 1. + pointer++; + + // If c is the EOF code point, validation error, return failure. + if (pointer == input.end()) { + ada_log( + "parse_ipv6 If c is the EOF code point, validation error, return " + "failure"); + return is_valid = false; + } + } + // Otherwise, if c is not the EOF code point, validation error, return + // failure. + else if (pointer != input.end()) { + ada_log( + "parse_ipv6 Otherwise, if c is not the EOF code point, validation " + "error, return failure"); + return is_valid = false; + } + + // Set address[pieceIndex] to value. + address[piece_index] = value; + + // Increase pieceIndex by 1. + piece_index++; + } + + // If compress is non-null, then: + if (compress.has_value()) { + // Let swaps be pieceIndex - compress. + int swaps = piece_index - *compress; + + // Set pieceIndex to 7. + piece_index = 7; + + // While pieceIndex is not 0 and swaps is greater than 0, + // swap address[pieceIndex] with address[compress + swaps - 1], and then + // decrease both pieceIndex and swaps by 1. + while (piece_index != 0 && swaps > 0) { + std::swap(address[piece_index], address[*compress + swaps - 1]); + piece_index--; + swaps--; + } + } + // Otherwise, if compress is null and pieceIndex is not 8, validation error, + // return failure. + else if (piece_index != 8) { + ada_log( + "parse_ipv6 if compress is null and pieceIndex is not 8, validation " + "error, return failure"); + return is_valid = false; + } + host = ada::serializers::ipv6(address); + ada_log("parse_ipv6 ", *host); + host_type = IPV6; + return true; +} + +template +ada_really_inline bool url::parse_scheme(const std::string_view input) { + auto parsed_type = ada::scheme::get_scheme_type(input); + bool is_input_special = (parsed_type != ada::scheme::NOT_SPECIAL); + /** + * In the common case, we will immediately recognize a special scheme (e.g., + *http, https), in which case, we can go really fast. + **/ + if (is_input_special) { // fast path!!! + if (has_state_override) { + // If url's scheme is not a special scheme and buffer is a special scheme, + // then return. + if (is_special() != is_input_special) { + return true; + } + + // If url includes credentials or has a non-null port, and buffer is + // "file", then return. + if ((has_credentials() || port.has_value()) && + parsed_type == ada::scheme::type::FILE) { + return true; + } + + // If url's scheme is "file" and its host is an empty host, then return. + // An empty host is the empty string. + if (type == ada::scheme::type::FILE && host.has_value() && + host.value().empty()) { + return true; + } + } + + type = parsed_type; + + if (has_state_override) { + // This is uncommon. + uint16_t urls_scheme_port = get_special_port(); + + if (urls_scheme_port) { + // If url's port is url's scheme's default port, then set url's port to + // null. + if (port.has_value() && *port == urls_scheme_port) { + port = std::nullopt; + } + } + } + } else { // slow path + std::string _buffer = std::string(input); + // Next function is only valid if the input is ASCII and returns false + // otherwise, but it seems that we always have ascii content so we do not + // need to check the return value. + // bool is_ascii = + unicode::to_lower_ascii(_buffer.data(), _buffer.size()); + + if (has_state_override) { + // If url's scheme is a special scheme and buffer is not a special scheme, + // then return. If url's scheme is not a special scheme and buffer is a + // special scheme, then return. + if (is_special() != ada::scheme::is_special(_buffer)) { + return true; + } + + // If url includes credentials or has a non-null port, and buffer is + // "file", then return. + if ((has_credentials() || port.has_value()) && _buffer == "file") { + return true; + } + + // If url's scheme is "file" and its host is an empty host, then return. + // An empty host is the empty string. + if (type == ada::scheme::type::FILE && host.has_value() && + host.value().empty()) { + return true; + } + } + + set_scheme(std::move(_buffer)); + + if (has_state_override) { + // This is uncommon. + uint16_t urls_scheme_port = get_special_port(); + + if (urls_scheme_port) { + // If url's port is url's scheme's default port, then set url's port to + // null. + if (port.has_value() && *port == urls_scheme_port) { + port = std::nullopt; + } + } + } + } + + return true; +} + +ada_really_inline bool url::parse_host(std::string_view input) { + ada_log("parse_host ", input, "[", input.size(), " bytes]"); + if (input.empty()) { + return is_valid = false; + } // technically unnecessary. + // If input starts with U+005B ([), then: + if (input[0] == '[') { + // If input does not end with U+005D (]), validation error, return failure. + if (input.back() != ']') { + return is_valid = false; + } + ada_log("parse_host ipv6"); + + // Return the result of IPv6 parsing input with its leading U+005B ([) and + // trailing U+005D (]) removed. + input.remove_prefix(1); + input.remove_suffix(1); + return parse_ipv6(input); + } + + // If isNotSpecial is true, then return the result of opaque-host parsing + // input. + if (!is_special()) { + return parse_opaque_host(input); + } + // Let domain be the result of running UTF-8 decode without BOM on the + // percent-decoding of input. Let asciiDomain be the result of running domain + // to ASCII with domain and false. The most common case is an ASCII input, in + // which case we do not need to call the expensive 'to_ascii' if a few + // conditions are met: no '%' and no 'xn-' subsequence. + std::string buffer = std::string(input); + // This next function checks that the result is ascii, but we are going to + // to check anyhow with is_forbidden. + // bool is_ascii = + unicode::to_lower_ascii(buffer.data(), buffer.size()); + bool is_forbidden = unicode::contains_forbidden_domain_code_point( + buffer.data(), buffer.size()); + if (is_forbidden == 0 && buffer.find("xn-") == std::string_view::npos) { + // fast path + host = std::move(buffer); + if (checkers::is_ipv4(host.value())) { + ada_log("parse_host fast path ipv4"); + return parse_ipv4(host.value()); + } + ada_log("parse_host fast path ", *host); + return true; + } + ada_log("parse_host calling to_ascii"); + is_valid = ada::unicode::to_ascii(host, input, input.find('%')); + if (!is_valid) { + ada_log("parse_host to_ascii returns false"); + return is_valid = false; + } + + if (std::any_of(host.value().begin(), host.value().end(), + ada::unicode::is_forbidden_domain_code_point)) { + host = std::nullopt; + return is_valid = false; + } + + // If asciiDomain ends in a number, then return the result of IPv4 parsing + // asciiDomain. + if (checkers::is_ipv4(host.value())) { + ada_log("parse_host got ipv4", *host); + return parse_ipv4(host.value()); + } + + return true; +} + +ada_really_inline void url::parse_path(std::string_view input) { + ada_log("parse_path ", input); + std::string tmp_buffer; + std::string_view internal_input; + if (unicode::has_tabs_or_newline(input)) { + tmp_buffer = input; + // Optimization opportunity: Instead of copying and then pruning, we could + // just directly build the string from user_input. + helpers::remove_ascii_tab_or_newline(tmp_buffer); + internal_input = tmp_buffer; + } else { + internal_input = input; + } + + // If url is special, then: + if (is_special()) { + if (internal_input.empty()) { + path = "/"; + } else if ((internal_input[0] == '/') || (internal_input[0] == '\\')) { + helpers::parse_prepared_path(internal_input.substr(1), type, path); + return; + } else { + helpers::parse_prepared_path(internal_input, type, path); + return; + } + } else if (!internal_input.empty()) { + if (internal_input[0] == '/') { + helpers::parse_prepared_path(internal_input.substr(1), type, path); + return; + } else { + helpers::parse_prepared_path(internal_input, type, path); + return; + } + } else { + if (!host.has_value()) { + path = "/"; + } + } +} + +[[nodiscard]] std::string url::to_string() const { + if (!is_valid) { + return "null"; + } + std::string answer; + auto back = std::back_insert_iterator(answer); + answer.append("{\n"); + answer.append("\t\"protocol\":\""); + helpers::encode_json(get_protocol(), back); + answer.append("\",\n"); + if (has_credentials()) { + answer.append("\t\"username\":\""); + helpers::encode_json(username, back); + answer.append("\",\n"); + answer.append("\t\"password\":\""); + helpers::encode_json(password, back); + answer.append("\",\n"); + } + if (host.has_value()) { + answer.append("\t\"host\":\""); + helpers::encode_json(host.value(), back); + answer.append("\",\n"); + } + if (port.has_value()) { + answer.append("\t\"port\":\""); + answer.append(std::to_string(port.value())); + answer.append("\",\n"); + } + answer.append("\t\"path\":\""); + helpers::encode_json(path, back); + answer.append("\",\n"); + answer.append("\t\"opaque path\":"); + answer.append((has_opaque_path ? "true" : "false")); + if (has_search()) { + answer.append(",\n"); + answer.append("\t\"query\":\""); + helpers::encode_json(query.value(), back); + answer.append("\""); + } + if (hash.has_value()) { + answer.append(",\n"); + answer.append("\t\"hash\":\""); + helpers::encode_json(hash.value(), back); + answer.append("\""); + } + answer.append("\n}"); + return answer; +} + +[[nodiscard]] bool url::has_valid_domain() const noexcept { + if (!host.has_value()) { + return false; + } + return checkers::verify_dns_length(host.value()); +} + +} // namespace ada +/* end file src/url.cpp */ +/* begin file src/url-getters.cpp */ +/** + * @file url-getters.cpp + * Includes all the getters of `ada::url` + */ + +#include +#include + +namespace ada { +[[nodiscard]] std::string url::get_origin() const noexcept { + if (is_special()) { + // Return a new opaque origin. + if (type == scheme::FILE) { + return "null"; + } + return ada::helpers::concat(get_protocol(), "//", get_host()); + } + + if (non_special_scheme == "blob") { + if (!path.empty()) { + auto result = ada::parse(path); + if (result && + (result->type == scheme::HTTP || result->type == scheme::HTTPS)) { + // If pathURL's scheme is not "http" and not "https", then return a + // new opaque origin. + return ada::helpers::concat(result->get_protocol(), "//", + result->get_host()); + } + } + } + + // Return a new opaque origin. + return "null"; +} + +[[nodiscard]] std::string url::get_protocol() const noexcept { + if (is_special()) { + return helpers::concat(ada::scheme::details::is_special_list[type], ":"); + } + // We only move the 'scheme' if it is non-special. + return helpers::concat(non_special_scheme, ":"); +} + +[[nodiscard]] std::string url::get_host() const noexcept { + // If url's host is null, then return the empty string. + // If url's port is null, return url's host, serialized. + // Return url's host, serialized, followed by U+003A (:) and url's port, + // serialized. + if (!host.has_value()) { + return ""; + } + if (port.has_value()) { + return host.value() + ":" + get_port(); + } + return host.value(); +} + +[[nodiscard]] std::string url::get_hostname() const noexcept { + return host.value_or(""); +} + +[[nodiscard]] std::string_view url::get_pathname() const noexcept { + return path; +} + +[[nodiscard]] std::string url::get_search() const noexcept { + // If this's URL's query is either null or the empty string, then return the + // empty string. Return U+003F (?), followed by this's URL's query. + return (!query.has_value() || (query.value().empty())) ? "" + : "?" + query.value(); +} + +[[nodiscard]] const std::string& url::get_username() const noexcept { + return username; +} + +[[nodiscard]] const std::string& url::get_password() const noexcept { + return password; +} + +[[nodiscard]] std::string url::get_port() const noexcept { + return port.has_value() ? std::to_string(port.value()) : ""; +} + +[[nodiscard]] std::string url::get_hash() const noexcept { + // If this's URL's fragment is either null or the empty string, then return + // the empty string. Return U+0023 (#), followed by this's URL's fragment. + return (!hash.has_value() || (hash.value().empty())) ? "" + : "#" + hash.value(); +} + +} // namespace ada +/* end file src/url-getters.cpp */ +/* begin file src/url-setters.cpp */ +/** + * @file url-setters.cpp + * Includes all the setters of `ada::url` + */ + +#include +#include + +namespace ada { + +template +bool url::set_host_or_hostname(const std::string_view input) { + if (has_opaque_path) { + return false; + } + + std::optional previous_host = host; + std::optional previous_port = port; + + size_t host_end_pos = input.find('#'); + std::string _host(input.data(), host_end_pos != std::string_view::npos + ? host_end_pos + : input.size()); + helpers::remove_ascii_tab_or_newline(_host); + std::string_view new_host(_host); + + // If url's scheme is "file", then set state to file host state, instead of + // host state. + if (type != ada::scheme::type::FILE) { + std::string_view host_view(_host.data(), _host.length()); + auto [location, found_colon] = + helpers::get_host_delimiter_location(is_special(), host_view); + + // Otherwise, if c is U+003A (:) and insideBrackets is false, then: + // Note: the 'found_colon' value is true if and only if a colon was + // encountered while not inside brackets. + if (found_colon) { + if (override_hostname) { + return false; + } + std::string_view buffer = new_host.substr(location + 1); + if (!buffer.empty()) { + set_port(buffer); + } + } + // If url is special and host_view is the empty string, validation error, + // return failure. Otherwise, if state override is given, host_view is the + // empty string, and either url includes credentials or url's port is + // non-null, return. + else if (host_view.empty() && + (is_special() || has_credentials() || port.has_value())) { + return false; + } + + // Let host be the result of host parsing host_view with url is not special. + if (host_view.empty() && !is_special()) { + host = ""; + return true; + } + + bool succeeded = parse_host(host_view); + if (!succeeded) { + host = previous_host; + update_base_port(previous_port); + } + return succeeded; + } + + size_t location = new_host.find_first_of("/\\?"); + if (location != std::string_view::npos) { + new_host.remove_suffix(new_host.length() - location); + } + + if (new_host.empty()) { + // Set url's host to the empty string. + host = ""; + } else { + // Let host be the result of host parsing buffer with url is not special. + if (!parse_host(new_host)) { + host = previous_host; + update_base_port(previous_port); + return false; + } + + // If host is "localhost", then set host to the empty string. + if (host.has_value() && host.value() == "localhost") { + host = ""; + } + } + return true; +} + +bool url::set_host(const std::string_view input) { + return set_host_or_hostname(input); +} + +bool url::set_hostname(const std::string_view input) { + return set_host_or_hostname(input); +} + +bool url::set_username(const std::string_view input) { + if (cannot_have_credentials_or_port()) { + return false; + } + username = ada::unicode::percent_encode( + input, character_sets::USERINFO_PERCENT_ENCODE); + return true; +} + +bool url::set_password(const std::string_view input) { + if (cannot_have_credentials_or_port()) { + return false; + } + password = ada::unicode::percent_encode( + input, character_sets::USERINFO_PERCENT_ENCODE); + return true; +} + +bool url::set_port(const std::string_view input) { + if (cannot_have_credentials_or_port()) { + return false; + } + std::string trimmed(input); + helpers::remove_ascii_tab_or_newline(trimmed); + if (trimmed.empty()) { + port = std::nullopt; + return true; + } + // Input should not start with control characters. + if (ada::unicode::is_c0_control_or_space(trimmed.front())) { + return false; + } + // Input should contain at least one ascii digit. + if (input.find_first_of("0123456789") == std::string_view::npos) { + return false; + } + + // Revert changes if parse_port fails. + std::optional previous_port = port; + parse_port(trimmed); + if (is_valid) { + return true; + } + port = previous_port; + is_valid = true; + return false; +} + +void url::set_hash(const std::string_view input) { + if (input.empty()) { + hash = std::nullopt; + helpers::strip_trailing_spaces_from_opaque_path(*this); + return; + } + + std::string new_value; + new_value = input[0] == '#' ? input.substr(1) : input; + helpers::remove_ascii_tab_or_newline(new_value); + hash = unicode::percent_encode(new_value, + ada::character_sets::FRAGMENT_PERCENT_ENCODE); + return; +} + +void url::set_search(const std::string_view input) { + if (input.empty()) { + query = std::nullopt; + helpers::strip_trailing_spaces_from_opaque_path(*this); + return; + } + + std::string new_value; + new_value = input[0] == '?' ? input.substr(1) : input; + helpers::remove_ascii_tab_or_newline(new_value); + + auto query_percent_encode_set = + is_special() ? ada::character_sets::SPECIAL_QUERY_PERCENT_ENCODE + : ada::character_sets::QUERY_PERCENT_ENCODE; + + query = ada::unicode::percent_encode(std::string_view(new_value), + query_percent_encode_set); +} + +bool url::set_pathname(const std::string_view input) { + if (has_opaque_path) { + return false; + } + path = ""; + parse_path(input); + return true; +} + +bool url::set_protocol(const std::string_view input) { + std::string view(input); + helpers::remove_ascii_tab_or_newline(view); + if (view.empty()) { + return true; + } + + // Schemes should start with alpha values. + if (!checkers::is_alpha(view[0])) { + return false; + } + + view.append(":"); + + std::string::iterator pointer = + std::find_if_not(view.begin(), view.end(), unicode::is_alnum_plus); + + if (pointer != view.end() && *pointer == ':') { + return parse_scheme( + std::string_view(view.data(), pointer - view.begin())); + } + return false; +} + +bool url::set_href(const std::string_view input) { + ada::result out = ada::parse(input); + + if (out) { + username = out->username; + password = out->password; + host = out->host; + port = out->port; + path = out->path; + query = out->query; + hash = out->hash; + type = out->type; + non_special_scheme = out->non_special_scheme; + has_opaque_path = out->has_opaque_path; + } + + return out.has_value(); +} + +} // namespace ada +/* end file src/url-setters.cpp */ +/* begin file src/parser.cpp */ + +#include +#include + +namespace ada::parser { + +template +result_type parse_url(std::string_view user_input, + const result_type* base_url) { + // We can specialize the implementation per type. + // Important: result_type_is_ada_url is evaluated at *compile time*. This + // means that doing if constexpr(result_type_is_ada_url) { something } else { + // something else } is free (at runtime). This means that ada::url_aggregator + // and ada::url **do not have to support the exact same API**. + constexpr bool result_type_is_ada_url = + std::is_same::value; + constexpr bool result_type_is_ada_url_aggregator = + std::is_same::value; + static_assert(result_type_is_ada_url || + result_type_is_ada_url_aggregator); // We don't support + // anything else for now. + + ada_log("ada::parser::parse_url('", user_input, "' [", user_input.size(), + " bytes],", (base_url != nullptr ? base_url->to_string() : "null"), + ")"); + + ada::state state = ada::state::SCHEME_START; + result_type url{}; + + // We refuse to parse URL strings that exceed 4GB. Such strings are almost + // surely the result of a bug or are otherwise a security concern. + if (user_input.size() > std::numeric_limits::max()) { + url.is_valid = false; + } + // Going forward, user_input.size() is in [0, + // std::numeric_limits::max). If we are provided with an invalid + // base, or the optional_url was invalid, we must return. + if (base_url != nullptr) { + url.is_valid &= base_url->is_valid; + } + if (!url.is_valid) { + return url; + } + if constexpr (result_type_is_ada_url_aggregator) { + // Most of the time, we just need user_input.size(). + // In some instances, we may need a bit more. + /////////////////////////// + // This is *very* important. This line should *not* be removed + // hastily. There are principled reasons why reserve is important + // for performance. If you have a benchmark with small inputs, + // it may not matter, but in other instances, it could. + //// + // This rounds up to the next power of two. + // We know that user_input.size() is in [0, + // std::numeric_limits::max). + uint32_t reserve_capacity = + (0xFFFFFFFF >> + helpers::leading_zeroes(uint32_t(1 | user_input.size()))) + + 1; + url.reserve(reserve_capacity); + // + // + // + } + std::string tmp_buffer; + std::string_view internal_input; + if (unicode::has_tabs_or_newline(user_input)) { + tmp_buffer = user_input; + // Optimization opportunity: Instead of copying and then pruning, we could + // just directly build the string from user_input. + helpers::remove_ascii_tab_or_newline(tmp_buffer); + internal_input = tmp_buffer; + } else { + internal_input = user_input; + } + + // Leading and trailing control characters are uncommon and easy to deal with + // (no performance concern). + std::string_view url_data = internal_input; + helpers::trim_c0_whitespace(url_data); + + // Optimization opportunity. Most websites do not have fragment. + std::optional fragment = helpers::prune_hash(url_data); + // We add it last so that an implementation like ada::url_aggregator + // can append it last to its internal buffer, thus improving performance. + + // Here url_data no longer has its fragment. + // We are going to access the data from url_data (it is immutable). + // At any given time, we are pointing at byte 'input_position' in url_data. + // The input_position variable should range from 0 to input_size. + // It is illegal to access url_data at input_size. + size_t input_position = 0; + const size_t input_size = url_data.size(); + // Keep running the following state machine by switching on state. + // If after a run pointer points to the EOF code point, go to the next step. + // Otherwise, increase pointer by 1 and continue with the state machine. + // We never decrement input_position. + while (input_position <= input_size) { + ada_log("In parsing at ", input_position, " out of ", input_size, + " in state ", ada::to_string(state)); + switch (state) { + case ada::state::SCHEME_START: { + ada_log("SCHEME_START ", helpers::substring(url_data, input_position)); + // If c is an ASCII alpha, append c, lowercased, to buffer, and set + // state to scheme state. + if ((input_position != input_size) && + checkers::is_alpha(url_data[input_position])) { + state = ada::state::SCHEME; + input_position++; + } else { + // Otherwise, if state override is not given, set state to no scheme + // state and decrease pointer by 1. + state = ada::state::NO_SCHEME; + } + break; + } + case ada::state::SCHEME: { + ada_log("SCHEME ", helpers::substring(url_data, input_position)); + // If c is an ASCII alphanumeric, U+002B (+), U+002D (-), or U+002E (.), + // append c, lowercased, to buffer. + while ((input_position != input_size) && + (ada::unicode::is_alnum_plus(url_data[input_position]))) { + input_position++; + } + // Otherwise, if c is U+003A (:), then: + if ((input_position != input_size) && + (url_data[input_position] == ':')) { + ada_log("SCHEME the scheme should be ", + url_data.substr(0, input_position)); + if constexpr (result_type_is_ada_url) { + if (!url.parse_scheme(url_data.substr(0, input_position))) { + return url; + } + } else { + // we pass the colon along instead of painfully adding it back. + if (!url.parse_scheme_with_colon( + url_data.substr(0, input_position + 1))) { + return url; + } + } + ada_log("SCHEME the scheme is ", url.get_protocol()); + + // If url's scheme is "file", then: + if (url.type == ada::scheme::type::FILE) { + // Set state to file state. + state = ada::state::FILE; + } + // Otherwise, if url is special, base is non-null, and base's scheme + // is url's scheme: Note: Doing base_url->scheme is unsafe if base_url + // != nullptr is false. + else if (url.is_special() && base_url != nullptr && + base_url->type == url.type) { + // Set state to special relative or authority state. + state = ada::state::SPECIAL_RELATIVE_OR_AUTHORITY; + } + // Otherwise, if url is special, set state to special authority + // slashes state. + else if (url.is_special()) { + state = ada::state::SPECIAL_AUTHORITY_SLASHES; + } + // Otherwise, if remaining starts with an U+002F (/), set state to + // path or authority state and increase pointer by 1. + else if (input_position + 1 < input_size && + url_data[input_position + 1] == '/') { + state = ada::state::PATH_OR_AUTHORITY; + input_position++; + } + // Otherwise, set url's path to the empty string and set state to + // opaque path state. + else { + state = ada::state::OPAQUE_PATH; + } + } + // Otherwise, if state override is not given, set buffer to the empty + // string, state to no scheme state, and start over (from the first code + // point in input). + else { + state = ada::state::NO_SCHEME; + input_position = 0; + break; + } + input_position++; + break; + } + case ada::state::NO_SCHEME: { + ada_log("NO_SCHEME ", helpers::substring(url_data, input_position)); + // If base is null, or base has an opaque path and c is not U+0023 (#), + // validation error, return failure. + if (base_url == nullptr || + (base_url->has_opaque_path && !fragment.has_value())) { + ada_log("NO_SCHEME validation error"); + url.is_valid = false; + return url; + } + // Otherwise, if base has an opaque path and c is U+0023 (#), + // set url's scheme to base's scheme, url's path to base's path, url's + // query to base's query, and set state to fragment state. + else if (base_url->has_opaque_path && fragment.has_value() && + input_position == input_size) { + ada_log("NO_SCHEME opaque base with fragment"); + url.copy_scheme(*base_url); + url.has_opaque_path = base_url->has_opaque_path; + + if constexpr (result_type_is_ada_url) { + url.path = base_url->path; + url.query = base_url->query; + } else { + url.update_base_pathname(base_url->get_pathname()); + url.update_base_search(base_url->get_search()); + } + url.update_unencoded_base_hash(*fragment); + return url; + } + // Otherwise, if base's scheme is not "file", set state to relative + // state and decrease pointer by 1. + else if (base_url->type != ada::scheme::type::FILE) { + ada_log("NO_SCHEME non-file relative path"); + state = ada::state::RELATIVE_SCHEME; + } + // Otherwise, set state to file state and decrease pointer by 1. + else { + ada_log("NO_SCHEME file base type"); + state = ada::state::FILE; + } + break; + } + case ada::state::AUTHORITY: { + ada_log("AUTHORITY ", helpers::substring(url_data, input_position)); + // most URLs have no @. Having no @ tells us that we don't have to worry + // about AUTHORITY. Of course, we could have @ and still not have to + // worry about AUTHORITY. + // TODO: Instead of just collecting a bool, collect the location of the + // '@' and do something useful with it. + // TODO: We could do various processing early on, using a single pass + // over the string to collect information about it, e.g., telling us + // whether there is a @ and if so, where (or how many). + const bool contains_ampersand = + (url_data.find('@', input_position) != std::string_view::npos); + + if (!contains_ampersand) { + state = ada::state::HOST; + break; + } + bool at_sign_seen{false}; + bool password_token_seen{false}; + /** + * We expect something of the sort... + * https://user:pass@example.com:1234/foo/bar?baz#quux + * --------^ + */ + do { + std::string_view view = helpers::substring(url_data, input_position); + // The delimiters are @, /, ? \\. + size_t location = + url.is_special() ? helpers::find_authority_delimiter_special(view) + : helpers::find_authority_delimiter(view); + std::string_view authority_view(view.data(), location); + size_t end_of_authority = input_position + authority_view.size(); + // If c is U+0040 (@), then: + if ((end_of_authority != input_size) && + (url_data[end_of_authority] == '@')) { + // If atSignSeen is true, then prepend "%40" to buffer. + if (at_sign_seen) { + if (password_token_seen) { + if constexpr (result_type_is_ada_url) { + url.password += "%40"; + } else { + url.append_base_password("%40"); + } + } else { + if constexpr (result_type_is_ada_url) { + url.username += "%40"; + } else { + url.append_base_username("%40"); + } + } + } + + at_sign_seen = true; + + if (!password_token_seen) { + size_t password_token_location = authority_view.find(':'); + password_token_seen = + password_token_location != std::string_view::npos; + + if (!password_token_seen) { + if constexpr (result_type_is_ada_url) { + url.username += unicode::percent_encode( + authority_view, character_sets::USERINFO_PERCENT_ENCODE); + } else { + url.append_base_username(unicode::percent_encode( + authority_view, character_sets::USERINFO_PERCENT_ENCODE)); + } + } else { + if constexpr (result_type_is_ada_url) { + url.username += unicode::percent_encode( + authority_view.substr(0, password_token_location), + character_sets::USERINFO_PERCENT_ENCODE); + url.password += unicode::percent_encode( + authority_view.substr(password_token_location + 1), + character_sets::USERINFO_PERCENT_ENCODE); + } else { + url.append_base_username(unicode::percent_encode( + authority_view.substr(0, password_token_location), + character_sets::USERINFO_PERCENT_ENCODE)); + url.append_base_password(unicode::percent_encode( + authority_view.substr(password_token_location + 1), + character_sets::USERINFO_PERCENT_ENCODE)); + } + } + } else { + if constexpr (result_type_is_ada_url) { + url.password += unicode::percent_encode( + authority_view, character_sets::USERINFO_PERCENT_ENCODE); + } else { + url.append_base_password(unicode::percent_encode( + authority_view, character_sets::USERINFO_PERCENT_ENCODE)); + } + } + } + // Otherwise, if one of the following is true: + // - c is the EOF code point, U+002F (/), U+003F (?), or U+0023 (#) + // - url is special and c is U+005C (\) + else if (end_of_authority == input_size || + url_data[end_of_authority] == '/' || + url_data[end_of_authority] == '?' || + (url.is_special() && url_data[end_of_authority] == '\\')) { + // If atSignSeen is true and authority_view is the empty string, + // validation error, return failure. + if (at_sign_seen && authority_view.empty()) { + url.is_valid = false; + return url; + } + state = ada::state::HOST; + break; + } + if (end_of_authority == input_size) { + if (fragment.has_value()) { + url.update_unencoded_base_hash(*fragment); + } + return url; + } + input_position = end_of_authority + 1; + } while (true); + + break; + } + case ada::state::SPECIAL_RELATIVE_OR_AUTHORITY: { + ada_log("SPECIAL_RELATIVE_OR_AUTHORITY ", + helpers::substring(url_data, input_position)); + + // If c is U+002F (/) and remaining starts with U+002F (/), + // then set state to special authority ignore slashes state and increase + // pointer by 1. + std::string_view view = helpers::substring(url_data, input_position); + if (ada::checkers::begins_with(view, "//")) { + state = ada::state::SPECIAL_AUTHORITY_IGNORE_SLASHES; + input_position += 2; + } else { + // Otherwise, validation error, set state to relative state and + // decrease pointer by 1. + state = ada::state::RELATIVE_SCHEME; + } + + break; + } + case ada::state::PATH_OR_AUTHORITY: { + ada_log("PATH_OR_AUTHORITY ", + helpers::substring(url_data, input_position)); + + // If c is U+002F (/), then set state to authority state. + if ((input_position != input_size) && + (url_data[input_position] == '/')) { + state = ada::state::AUTHORITY; + input_position++; + } else { + // Otherwise, set state to path state, and decrease pointer by 1. + state = ada::state::PATH; + } + + break; + } + case ada::state::RELATIVE_SCHEME: { + ada_log("RELATIVE_SCHEME ", + helpers::substring(url_data, input_position)); + + // Set url's scheme to base's scheme. + url.copy_scheme(*base_url); + + // If c is U+002F (/), then set state to relative slash state. + if ((input_position != input_size) && + (url_data[input_position] == '/')) { + ada_log( + "RELATIVE_SCHEME if c is U+002F (/), then set state to relative " + "slash state"); + state = ada::state::RELATIVE_SLASH; + } else if (url.is_special() && (input_position != input_size) && + (url_data[input_position] == '\\')) { + // Otherwise, if url is special and c is U+005C (\), validation error, + // set state to relative slash state. + ada_log( + "RELATIVE_SCHEME if url is special and c is U+005C, validation " + "error, set state to relative slash state"); + state = ada::state::RELATIVE_SLASH; + } else { + ada_log("RELATIVE_SCHEME otherwise"); + // Set url's username to base's username, url's password to base's + // password, url's host to base's host, url's port to base's port, + // url's path to a clone of base's path, and url's query to base's + // query. + if constexpr (result_type_is_ada_url) { + url.username = base_url->username; + url.password = base_url->password; + url.host = base_url->host; + url.port = base_url->port; + // cloning the base path includes cloning the has_opaque_path flag + url.has_opaque_path = base_url->has_opaque_path; + url.path = base_url->path; + url.query = base_url->query; + } else { + url.update_base_authority(base_url->get_href(), + base_url->get_components()); + // TODO: Get rid of set_hostname and replace it with + // update_base_hostname + url.set_hostname(base_url->get_hostname()); + url.update_base_port(base_url->retrieve_base_port()); + // cloning the base path includes cloning the has_opaque_path flag + url.has_opaque_path = base_url->has_opaque_path; + url.update_base_pathname(base_url->get_pathname()); + url.update_base_search(base_url->get_search()); + } + + url.has_opaque_path = base_url->has_opaque_path; + + // If c is U+003F (?), then set url's query to the empty string, and + // state to query state. + if ((input_position != input_size) && + (url_data[input_position] == '?')) { + state = ada::state::QUERY; + } + // Otherwise, if c is not the EOF code point: + else if (input_position != input_size) { + // Set url's query to null. + url.clear_search(); + if constexpr (result_type_is_ada_url) { + // Shorten url's path. + helpers::shorten_path(url.path, url.type); + } else { + std::string_view path = url.get_pathname(); + if (helpers::shorten_path(path, url.type)) { + url.update_base_pathname(std::string(path)); + } + } + // Set state to path state and decrease pointer by 1. + state = ada::state::PATH; + break; + } + } + input_position++; + break; + } + case ada::state::RELATIVE_SLASH: { + ada_log("RELATIVE_SLASH ", + helpers::substring(url_data, input_position)); + + // If url is special and c is U+002F (/) or U+005C (\), then: + if (url.is_special() && (input_position != input_size) && + (url_data[input_position] == '/' || + url_data[input_position] == '\\')) { + // Set state to special authority ignore slashes state. + state = ada::state::SPECIAL_AUTHORITY_IGNORE_SLASHES; + } + // Otherwise, if c is U+002F (/), then set state to authority state. + else if ((input_position != input_size) && + (url_data[input_position] == '/')) { + state = ada::state::AUTHORITY; + } + // Otherwise, set + // - url's username to base's username, + // - url's password to base's password, + // - url's host to base's host, + // - url's port to base's port, + // - state to path state, and then, decrease pointer by 1. + else { + if constexpr (result_type_is_ada_url) { + url.username = base_url->username; + url.password = base_url->password; + url.host = base_url->host; + url.port = base_url->port; + } else { + url.update_base_authority(base_url->get_href(), + base_url->get_components()); + // TODO: Get rid of set_hostname and replace it with + // update_base_hostname + url.set_hostname(base_url->get_hostname()); + url.update_base_port(base_url->retrieve_base_port()); + } + state = ada::state::PATH; + break; + } + + input_position++; + break; + } + case ada::state::SPECIAL_AUTHORITY_SLASHES: { + ada_log("SPECIAL_AUTHORITY_SLASHES ", + helpers::substring(url_data, input_position)); + + // If c is U+002F (/) and remaining starts with U+002F (/), + // then set state to special authority ignore slashes state and increase + // pointer by 1. + std::string_view view = helpers::substring(url_data, input_position); + if (ada::checkers::begins_with(view, "//")) { + input_position += 2; + } + + [[fallthrough]]; + } + case ada::state::SPECIAL_AUTHORITY_IGNORE_SLASHES: { + ada_log("SPECIAL_AUTHORITY_IGNORE_SLASHES ", + helpers::substring(url_data, input_position)); + + // If c is neither U+002F (/) nor U+005C (\), then set state to + // authority state and decrease pointer by 1. + while ((input_position != input_size) && + ((url_data[input_position] == '/') || + (url_data[input_position] == '\\'))) { + input_position++; + } + state = ada::state::AUTHORITY; + + break; + } + case ada::state::QUERY: { + ada_log("QUERY ", helpers::substring(url_data, input_position)); + // Let queryPercentEncodeSet be the special-query percent-encode set if + // url is special; otherwise the query percent-encode set. + const uint8_t* query_percent_encode_set = + url.is_special() ? ada::character_sets::SPECIAL_QUERY_PERCENT_ENCODE + : ada::character_sets::QUERY_PERCENT_ENCODE; + + // Percent-encode after encoding, with encoding, buffer, and + // queryPercentEncodeSet, and append the result to url's query. + url.update_base_search(helpers::substring(url_data, input_position), + query_percent_encode_set); + ada_log("QUERY update_base_search completed "); + if (fragment.has_value()) { + url.update_unencoded_base_hash(*fragment); + } + return url; + } + case ada::state::HOST: { + ada_log("HOST ", helpers::substring(url_data, input_position)); + + std::string_view host_view = + helpers::substring(url_data, input_position); + auto [location, found_colon] = + helpers::get_host_delimiter_location(url.is_special(), host_view); + input_position = (location != std::string_view::npos) + ? input_position + location + : input_size; + // Otherwise, if c is U+003A (:) and insideBrackets is false, then: + // Note: the 'found_colon' value is true if and only if a colon was + // encountered while not inside brackets. + if (found_colon) { + // If buffer is the empty string, validation error, return failure. + // Let host be the result of host parsing buffer with url is not + // special. + ada_log("HOST parsing ", host_view); + if (!url.parse_host(host_view)) { + return url; + } + ada_log("HOST parsing results in ", url.get_hostname()); + // Set url's host to host, buffer to the empty string, and state to + // port state. + state = ada::state::PORT; + input_position++; + } + // Otherwise, if one of the following is true: + // - c is the EOF code point, U+002F (/), U+003F (?), or U+0023 (#) + // - url is special and c is U+005C (\) + // The get_host_delimiter_location function either brings us to + // the colon outside of the bracket, or to one of those characters. + else { + // If url is special and host_view is the empty string, validation + // error, return failure. + if (url.is_special() && host_view.empty()) { + url.is_valid = false; + return url; + } + ada_log("HOST parsing ", host_view, " href=", url.get_href()); + // Let host be the result of host parsing host_view with url is not + // special. + if (host_view.empty()) { + url.update_base_hostname(""); + } else if (!url.parse_host(host_view)) { + return url; + } + ada_log("HOST parsing results in ", url.get_hostname(), + " href=", url.get_href()); + + // Set url's host to host, and state to path start state. + state = ada::state::PATH_START; + } + + break; + } + case ada::state::OPAQUE_PATH: { + ada_log("OPAQUE_PATH ", helpers::substring(url_data, input_position)); + std::string_view view = helpers::substring(url_data, input_position); + // If c is U+003F (?), then set url's query to the empty string and + // state to query state. + size_t location = view.find('?'); + if (location != std::string_view::npos) { + view.remove_suffix(view.size() - location); + state = ada::state::QUERY; + input_position += location + 1; + } else { + input_position = input_size + 1; + } + url.has_opaque_path = true; + // This is a really unlikely scenario in real world. We should not seek + // to optimize it. + url.update_base_pathname(unicode::percent_encode( + view, character_sets::C0_CONTROL_PERCENT_ENCODE)); + break; + } + case ada::state::PORT: { + ada_log("PORT ", helpers::substring(url_data, input_position)); + std::string_view port_view = + helpers::substring(url_data, input_position); + size_t consumed_bytes = url.parse_port(port_view, true); + input_position += consumed_bytes; + if (!url.is_valid) { + return url; + } + state = state::PATH_START; + [[fallthrough]]; + } + case ada::state::PATH_START: { + ada_log("PATH_START ", helpers::substring(url_data, input_position)); + + // If url is special, then: + if (url.is_special()) { + // Set state to path state. + state = ada::state::PATH; + + // Optimization: Avoiding going into PATH state improves the + // performance of urls ending with /. + if (input_position == input_size) { + url.update_base_pathname("/"); + if (fragment.has_value()) { + url.update_unencoded_base_hash(*fragment); + } + return url; + } + // If c is neither U+002F (/) nor U+005C (\), then decrease pointer + // by 1. We know that (input_position == input_size) is impossible + // here, because of the previous if-check. + if ((url_data[input_position] != '/') && + (url_data[input_position] != '\\')) { + break; + } + } + // Otherwise, if state override is not given and c is U+003F (?), + // set url's query to the empty string and state to query state. + else if ((input_position != input_size) && + (url_data[input_position] == '?')) { + state = ada::state::QUERY; + } + // Otherwise, if c is not the EOF code point: + else if (input_position != input_size) { + // Set state to path state. + state = ada::state::PATH; + + // If c is not U+002F (/), then decrease pointer by 1. + if (url_data[input_position] != '/') { + break; + } + } + + input_position++; + break; + } + case ada::state::PATH: { + std::string_view view = helpers::substring(url_data, input_position); + ada_log("PATH ", helpers::substring(url_data, input_position)); + + // Most time, we do not need percent encoding. + // Furthermore, we can immediately locate the '?'. + size_t locofquestionmark = view.find('?'); + if (locofquestionmark != std::string_view::npos) { + state = ada::state::QUERY; + view.remove_suffix(view.size() - locofquestionmark); + input_position += locofquestionmark + 1; + } else { + input_position = input_size + 1; + } + if constexpr (result_type_is_ada_url) { + helpers::parse_prepared_path(view, url.type, url.path); + } else { + url.consume_prepared_path(view); + ADA_ASSERT_TRUE(url.validate()); + } + break; + } + case ada::state::FILE_SLASH: { + ada_log("FILE_SLASH ", helpers::substring(url_data, input_position)); + + // If c is U+002F (/) or U+005C (\), then: + if ((input_position != input_size) && + (url_data[input_position] == '/' || + url_data[input_position] == '\\')) { + ada_log("FILE_SLASH c is U+002F or U+005C"); + // Set state to file host state. + state = ada::state::FILE_HOST; + input_position++; + } else { + ada_log("FILE_SLASH otherwise"); + // If base is non-null and base's scheme is "file", then: + // Note: it is unsafe to do base_url->scheme unless you know that + // base_url_has_value() is true. + if (base_url != nullptr && + base_url->type == ada::scheme::type::FILE) { + // Set url's host to base's host. + if constexpr (result_type_is_ada_url) { + url.host = base_url->host; + } else { + // TODO: Optimization opportunity. + url.set_host(base_url->get_host()); + } + // If the code point substring from pointer to the end of input does + // not start with a Windows drive letter and base's path[0] is a + // normalized Windows drive letter, then append base's path[0] to + // url's path. + if (!base_url->get_pathname().empty()) { + if (!checkers::is_windows_drive_letter( + helpers::substring(url_data, input_position))) { + std::string_view first_base_url_path = + base_url->get_pathname().substr(1); + size_t loc = first_base_url_path.find('/'); + if (loc != std::string_view::npos) { + helpers::resize(first_base_url_path, loc); + } + if (checkers::is_normalized_windows_drive_letter( + first_base_url_path)) { + if constexpr (result_type_is_ada_url) { + url.path += '/'; + url.path += first_base_url_path; + } else { + url.append_base_pathname( + helpers::concat("/", first_base_url_path)); + } + } + } + } + } + + // Set state to path state, and decrease pointer by 1. + state = ada::state::PATH; + } + + break; + } + case ada::state::FILE_HOST: { + std::string_view view = helpers::substring(url_data, input_position); + ada_log("FILE_HOST ", helpers::substring(url_data, input_position)); + + size_t location = view.find_first_of("/\\?"); + std::string_view file_host_buffer( + view.data(), + (location != std::string_view::npos) ? location : view.size()); + + if (checkers::is_windows_drive_letter(file_host_buffer)) { + state = ada::state::PATH; + } else if (file_host_buffer.empty()) { + // Set url's host to the empty string. + if constexpr (result_type_is_ada_url) { + url.host = ""; + } else { + url.update_base_hostname(""); + } + // Set state to path start state. + state = ada::state::PATH_START; + } else { + size_t consumed_bytes = file_host_buffer.size(); + input_position += consumed_bytes; + // Let host be the result of host parsing buffer with url is not + // special. + if (!url.parse_host(file_host_buffer)) { + return url; + } + + if constexpr (result_type_is_ada_url) { + // If host is "localhost", then set host to the empty string. + if (url.host.has_value() && url.host.value() == "localhost") { + url.host = ""; + } + } else { + if (url.get_hostname() == "localhost") { + url.update_base_hostname(""); + } + } + + // Set buffer to the empty string and state to path start state. + state = ada::state::PATH_START; + } + + break; + } + case ada::state::FILE: { + ada_log("FILE ", helpers::substring(url_data, input_position)); + std::string_view file_view = + helpers::substring(url_data, input_position); + + url.set_protocol_as_file(); + if constexpr (result_type_is_ada_url) { + // Set url's host to the empty string. + url.host = ""; + } else { + url.update_base_hostname(""); + } + // If c is U+002F (/) or U+005C (\), then: + if (input_position != input_size && + (url_data[input_position] == '/' || + url_data[input_position] == '\\')) { + ada_log("FILE c is U+002F or U+005C"); + // Set state to file slash state. + state = ada::state::FILE_SLASH; + } + // Otherwise, if base is non-null and base's scheme is "file": + else if (base_url != nullptr && + base_url->type == ada::scheme::type::FILE) { + // Set url's host to base's host, url's path to a clone of base's + // path, and url's query to base's query. + ada_log("FILE base non-null"); + if constexpr (result_type_is_ada_url) { + url.host = base_url->host; + url.path = base_url->path; + url.query = base_url->query; + } else { + // TODO: Get rid of set_hostname and replace it with + // update_base_hostname + url.set_hostname(base_url->get_hostname()); + url.update_base_pathname(base_url->get_pathname()); + url.update_base_search(base_url->get_search()); + } + url.has_opaque_path = base_url->has_opaque_path; + + // If c is U+003F (?), then set url's query to the empty string and + // state to query state. + if (input_position != input_size && url_data[input_position] == '?') { + state = ada::state::QUERY; + } + // Otherwise, if c is not the EOF code point: + else if (input_position != input_size) { + // Set url's query to null. + url.clear_search(); + // If the code point substring from pointer to the end of input does + // not start with a Windows drive letter, then shorten url's path. + if (!checkers::is_windows_drive_letter(file_view)) { + if constexpr (result_type_is_ada_url) { + helpers::shorten_path(url.path, url.type); + } else { + std::string_view path = url.get_pathname(); + if (helpers::shorten_path(path, url.type)) { + url.update_base_pathname(std::string(path)); + } + } + } + // Otherwise: + else { + // Set url's path to an empty list. + url.clear_pathname(); + url.has_opaque_path = true; + } + + // Set state to path state and decrease pointer by 1. + state = ada::state::PATH; + break; + } + } + // Otherwise, set state to path state, and decrease pointer by 1. + else { + ada_log("FILE go to path"); + state = ada::state::PATH; + break; + } + + input_position++; + break; + } + default: + ada::unreachable(); + } + } + if (fragment.has_value()) { + url.update_unencoded_base_hash(*fragment); + } + return url; +} + +template url parse_url(std::string_view user_input, + const url* base_url = nullptr); +template url_aggregator parse_url( + std::string_view user_input, const url_aggregator* base_url = nullptr); + +} // namespace ada::parser +/* end file src/parser.cpp */ +/* begin file src/url_components.cpp */ + +#include +#include + +namespace ada { + +[[nodiscard]] bool url_components::check_offset_consistency() const noexcept { + /** + * https://user:pass@example.com:1234/foo/bar?baz#quux + * | | | | ^^^^| | | + * | | | | | | | `----- hash_start + * | | | | | | `--------- search_start + * | | | | | `----------------- pathname_start + * | | | | `--------------------- port + * | | | `----------------------- host_end + * | | `---------------------------------- host_start + * | `--------------------------------------- username_end + * `--------------------------------------------- protocol_end + */ + // These conditions can be made more strict. + uint32_t index = 0; + + if (protocol_end == url_components::omitted) { + return false; + } + if (protocol_end < index) { + return false; + } + index = protocol_end; + + if (username_end == url_components::omitted) { + return false; + } + if (username_end < index) { + return false; + } + index = username_end; + + if (host_start == url_components::omitted) { + return false; + } + if (host_start < index) { + return false; + } + index = host_start; + + if (port != url_components::omitted) { + if (port > 0xffff) { + return false; + } + uint32_t port_length = helpers::fast_digit_count(port) + 1; + if (index + port_length < index) { + return false; + } + index += port_length; + } + + if (pathname_start == url_components::omitted) { + return false; + } + if (pathname_start < index) { + return false; + } + index = pathname_start; + + if (search_start != url_components::omitted) { + if (search_start < index) { + return false; + } + index = search_start; + } + + if (hash_start != url_components::omitted) { + if (hash_start < index) { + return false; + } + index = hash_start; + } + + return true; +} + +[[nodiscard]] std::string url_components::to_string() const { + std::string answer; + auto back = std::back_insert_iterator(answer); + answer.append("{\n"); + + answer.append("\t\"protocol_end\":\""); + helpers::encode_json(std::to_string(protocol_end), back); + answer.append("\",\n"); + + answer.append("\t\"username_end\":\""); + helpers::encode_json(std::to_string(username_end), back); + answer.append("\",\n"); + + answer.append("\t\"host_start\":\""); + helpers::encode_json(std::to_string(host_start), back); + answer.append("\",\n"); + + answer.append("\t\"host_end\":\""); + helpers::encode_json(std::to_string(host_end), back); + answer.append("\",\n"); + + answer.append("\t\"port\":\""); + helpers::encode_json(std::to_string(port), back); + answer.append("\",\n"); + + answer.append("\t\"pathname_start\":\""); + helpers::encode_json(std::to_string(pathname_start), back); + answer.append("\",\n"); + + answer.append("\t\"search_start\":\""); + helpers::encode_json(std::to_string(search_start), back); + answer.append("\",\n"); + + answer.append("\t\"hash_start\":\""); + helpers::encode_json(std::to_string(hash_start), back); + answer.append("\",\n"); + + answer.append("\n}"); + return answer; +} + +} // namespace ada +/* end file src/url_components.cpp */ +/* begin file src/url_aggregator.cpp */ + +#include +#include + +namespace ada { +template +[[nodiscard]] ada_really_inline bool url_aggregator::parse_scheme_with_colon( + const std::string_view input_with_colon) { + ada_log("url_aggregator::parse_scheme_with_colon ", input_with_colon); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input_with_colon, buffer)); + std::string_view input{input_with_colon}; + input.remove_suffix(1); + auto parsed_type = ada::scheme::get_scheme_type(input); + bool is_input_special = (parsed_type != ada::scheme::NOT_SPECIAL); + /** + * In the common case, we will immediately recognize a special scheme (e.g., + *http, https), in which case, we can go really fast. + **/ + if (is_input_special) { // fast path!!! + if (has_state_override) { + // If url's scheme is not a special scheme and buffer is a special scheme, + // then return. + if (is_special() != is_input_special) { + return true; + } + + // If url includes credentials or has a non-null port, and buffer is + // "file", then return. + if ((has_credentials() || components.port != url_components::omitted) && + parsed_type == ada::scheme::type::FILE) { + return true; + } + + // If url's scheme is "file" and its host is an empty host, then return. + // An empty host is the empty string. + if (type == ada::scheme::type::FILE && + components.host_start == components.host_end) { + return true; + } + } + + type = parsed_type; + set_scheme_from_view_with_colon(input_with_colon); + + if (has_state_override) { + // This is uncommon. + uint16_t urls_scheme_port = get_special_port(); + + // If url's port is url's scheme's default port, then set url's port to + // null. + if (components.port == urls_scheme_port) { + clear_port(); + } + } + } else { // slow path + std::string _buffer = std::string(input); + // Next function is only valid if the input is ASCII and returns false + // otherwise, but it seems that we always have ascii content so we do not + // need to check the return value. + unicode::to_lower_ascii(_buffer.data(), _buffer.size()); + + if (has_state_override) { + // If url's scheme is a special scheme and buffer is not a special scheme, + // then return. If url's scheme is not a special scheme and buffer is a + // special scheme, then return. + if (is_special() != ada::scheme::is_special(_buffer)) { + return true; + } + + // If url includes credentials or has a non-null port, and buffer is + // "file", then return. + if ((has_credentials() || components.port != url_components::omitted) && + _buffer == "file") { + return true; + } + + // If url's scheme is "file" and its host is an empty host, then return. + // An empty host is the empty string. + if (type == ada::scheme::type::FILE && + components.host_start == components.host_end) { + return true; + } + } + + set_scheme(_buffer); + + if (has_state_override) { + // This is uncommon. + uint16_t urls_scheme_port = get_special_port(); + + // If url's port is url's scheme's default port, then set url's port to + // null. + if (components.port == urls_scheme_port) { + clear_port(); + } + } + } + ADA_ASSERT_TRUE(validate()); + return true; +} + +inline void url_aggregator::copy_scheme(const url_aggregator& u) noexcept { + ada_log("url_aggregator::copy_scheme ", u.buffer); + ADA_ASSERT_TRUE(validate()); + // next line could overflow but unsigned arithmetic has well-defined + // overflows. + uint32_t new_difference = u.components.protocol_end - components.protocol_end; + type = u.type; + buffer.erase(0, components.protocol_end); + buffer.insert(0, u.get_protocol()); + components.protocol_end = u.components.protocol_end; + + // No need to update the components + if (new_difference == 0) { + return; + } + + // Update the rest of the components. + components.username_end += new_difference; + components.host_start += new_difference; + components.host_end += new_difference; + components.pathname_start += new_difference; + if (components.search_start != url_components::omitted) { + components.search_start += new_difference; + } + if (components.hash_start != url_components::omitted) { + components.hash_start += new_difference; + } + ADA_ASSERT_TRUE(validate()); +} + +inline void url_aggregator::set_scheme_from_view_with_colon( + std::string_view new_scheme_with_colon) noexcept { + ada_log("url_aggregator::set_scheme_from_view_with_colon ", + new_scheme_with_colon); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!new_scheme_with_colon.empty() && + new_scheme_with_colon.back() == ':'); + // next line could overflow but unsigned arithmetic has well-defined + // overflows. + uint32_t new_difference = + uint32_t(new_scheme_with_colon.size()) - components.protocol_end; + + if (buffer.empty()) { + buffer.append(new_scheme_with_colon); + } else { + buffer.erase(0, components.protocol_end); + buffer.insert(0, new_scheme_with_colon); + } + components.protocol_end += new_difference; + + // Update the rest of the components. + components.username_end += new_difference; + components.host_start += new_difference; + components.host_end += new_difference; + components.pathname_start += new_difference; + if (components.search_start != url_components::omitted) { + components.search_start += new_difference; + } + if (components.hash_start != url_components::omitted) { + components.hash_start += new_difference; + } + ADA_ASSERT_TRUE(validate()); +} + +inline void url_aggregator::set_scheme(std::string_view new_scheme) noexcept { + ada_log("url_aggregator::set_scheme ", new_scheme); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(new_scheme.empty() || new_scheme.back() != ':'); + // next line could overflow but unsigned arithmetic has well-defined + // overflows. + uint32_t new_difference = + uint32_t(new_scheme.size()) - components.protocol_end + 1; + + type = ada::scheme::get_scheme_type(new_scheme); + if (buffer.empty()) { + buffer.append(helpers::concat(new_scheme, ":")); + } else { + buffer.erase(0, components.protocol_end); + buffer.insert(0, helpers::concat(new_scheme, ":")); + } + components.protocol_end = uint32_t(new_scheme.size() + 1); + + // Update the rest of the components. + components.username_end += new_difference; + components.host_start += new_difference; + components.host_end += new_difference; + components.pathname_start += new_difference; + if (components.search_start != url_components::omitted) { + components.search_start += new_difference; + } + if (components.hash_start != url_components::omitted) { + components.hash_start += new_difference; + } + ADA_ASSERT_TRUE(validate()); +} + +bool url_aggregator::set_protocol(const std::string_view input) { + ada_log("url_aggregator::set_protocol ", input); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + std::string view(input); + helpers::remove_ascii_tab_or_newline(view); + if (view.empty()) { + return true; + } + + // Schemes should start with alpha values. + if (!checkers::is_alpha(view[0])) { + return false; + } + + view.append(":"); + + std::string::iterator pointer = + std::find_if_not(view.begin(), view.end(), unicode::is_alnum_plus); + + if (pointer != view.end() && *pointer == ':') { + return parse_scheme_with_colon( + std::string_view(view.data(), pointer - view.begin() + 1)); + } + return false; +} + +bool url_aggregator::set_username(const std::string_view input) { + ada_log("url_aggregator::set_username '", input, "' "); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + if (cannot_have_credentials_or_port()) { + return false; + } + size_t idx = ada::unicode::percent_encode_index( + input, character_sets::USERINFO_PERCENT_ENCODE); + if (idx == input.size()) { + update_base_username(input); + } else { + // We only create a temporary string if we have to! + update_base_username(ada::unicode::percent_encode( + input, character_sets::USERINFO_PERCENT_ENCODE, idx)); + } + ADA_ASSERT_TRUE(validate()); + return true; +} + +bool url_aggregator::set_password(const std::string_view input) { + ada_log("url_aggregator::set_password '", input, "'"); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + if (cannot_have_credentials_or_port()) { + return false; + } + size_t idx = ada::unicode::percent_encode_index( + input, character_sets::USERINFO_PERCENT_ENCODE); + if (idx == input.size()) { + update_base_password(input); + } else { + // We only create a temporary string if we have to! + update_base_password(ada::unicode::percent_encode( + input, character_sets::USERINFO_PERCENT_ENCODE, idx)); + } + ADA_ASSERT_TRUE(validate()); + return true; +} + +bool url_aggregator::set_port(const std::string_view input) { + ada_log("url_aggregator::set_port ", input); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + if (cannot_have_credentials_or_port()) { + return false; + } + std::string trimmed(input); + helpers::remove_ascii_tab_or_newline(trimmed); + if (trimmed.empty()) { + clear_port(); + return true; + } + // Input should not start with control characters. + if (ada::unicode::is_c0_control_or_space(trimmed.front())) { + return false; + } + // Input should contain at least one ascii digit. + if (input.find_first_of("0123456789") == std::string_view::npos) { + return false; + } + + // Revert changes if parse_port fails. + uint32_t previous_port = components.port; + parse_port(trimmed); + if (is_valid) { + return true; + } + update_base_port(previous_port); + is_valid = true; + ADA_ASSERT_TRUE(validate()); + return false; +} + +bool url_aggregator::set_pathname(const std::string_view input) { + ada_log("url_aggregator::set_pathname ", input); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + if (has_opaque_path) { + return false; + } + clear_pathname(); + parse_path(input); + if (checkers::begins_with(input, "//") && !has_authority() && + !has_dash_dot()) { + buffer.insert(components.pathname_start, "/."); + components.pathname_start += 2; + } + ADA_ASSERT_TRUE(validate()); + return true; +} + +ada_really_inline void url_aggregator::parse_path(std::string_view input) { + ada_log("url_aggregator::parse_path ", input); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + std::string tmp_buffer; + std::string_view internal_input; + if (unicode::has_tabs_or_newline(input)) { + tmp_buffer = input; + // Optimization opportunity: Instead of copying and then pruning, we could + // just directly build the string from user_input. + helpers::remove_ascii_tab_or_newline(tmp_buffer); + internal_input = tmp_buffer; + } else { + internal_input = input; + } + + // If url is special, then: + if (is_special()) { + if (internal_input.empty()) { + update_base_pathname("/"); + } else if ((internal_input[0] == '/') || (internal_input[0] == '\\')) { + consume_prepared_path(internal_input.substr(1)); + } else { + consume_prepared_path(internal_input); + } + } else if (!internal_input.empty()) { + if (internal_input[0] == '/') { + consume_prepared_path(internal_input.substr(1)); + } else { + consume_prepared_path(internal_input); + } + } else { + // Non-special URLs with an empty host can have their paths erased + // Path-only URLs cannot have their paths erased + if (components.host_start == components.host_end && !has_authority()) { + update_base_pathname("/"); + } + } + ADA_ASSERT_TRUE(validate()); +} + +void url_aggregator::set_search(const std::string_view input) { + ada_log("url_aggregator::set_search ", input); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + if (input.empty()) { + clear_search(); + helpers::strip_trailing_spaces_from_opaque_path(*this); + return; + } + + std::string new_value; + new_value = input[0] == '?' ? input.substr(1) : input; + helpers::remove_ascii_tab_or_newline(new_value); + + auto query_percent_encode_set = + is_special() ? ada::character_sets::SPECIAL_QUERY_PERCENT_ENCODE + : ada::character_sets::QUERY_PERCENT_ENCODE; + + update_base_search(new_value, query_percent_encode_set); + ADA_ASSERT_TRUE(validate()); +} + +void url_aggregator::set_hash(const std::string_view input) { + ada_log("url_aggregator::set_hash ", input); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + if (input.empty()) { + if (components.hash_start != url_components::omitted) { + buffer.resize(components.hash_start); + components.hash_start = url_components::omitted; + } + helpers::strip_trailing_spaces_from_opaque_path(*this); + return; + } + + std::string new_value; + new_value = input[0] == '#' ? input.substr(1) : input; + helpers::remove_ascii_tab_or_newline(new_value); + update_unencoded_base_hash(new_value); + ADA_ASSERT_TRUE(validate()); +} + +bool url_aggregator::set_href(const std::string_view input) { + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + ada_log("url_aggregator::set_href ", input, "[", input.size(), " bytes]"); + ada::result out = ada::parse(input); + ada_log("url_aggregator::set_href, success :", out.has_value()); + + if (out) { + ada_log("url_aggregator::set_href, parsed ", out->to_string()); + // TODO: Figure out why the following line puts test to never finish. + *this = *out; + } + + return out.has_value(); +} + +ada_really_inline bool url_aggregator::parse_host(std::string_view input) { + ada_log("url_aggregator:parse_host ", input, "[", input.size(), " bytes]"); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + if (input.empty()) { + return is_valid = false; + } // technically unnecessary. + // If input starts with U+005B ([), then: + if (input[0] == '[') { + // If input does not end with U+005D (]), validation error, return failure. + if (input.back() != ']') { + return is_valid = false; + } + ada_log("parse_host ipv6"); + + // Return the result of IPv6 parsing input with its leading U+005B ([) and + // trailing U+005D (]) removed. + input.remove_prefix(1); + input.remove_suffix(1); + return parse_ipv6(input); + } + + // If isNotSpecial is true, then return the result of opaque-host parsing + // input. + if (!is_special()) { + return parse_opaque_host(input); + } + // Let domain be the result of running UTF-8 decode without BOM on the + // percent-decoding of input. Let asciiDomain be the result of running domain + // to ASCII with domain and false. The most common case is an ASCII input, in + // which case we do not need to call the expensive 'to_ascii' if a few + // conditions are met: no '%' and no 'xn-' subsequence. + + // Often, the input does not contain any forbidden code points, and no upper + // case ASCII letter, then we can just copy it to the buffer. We want to + // optimize for such a common case. + uint8_t is_forbidden_or_upper = + unicode::contains_forbidden_domain_code_point_or_upper(input.data(), + input.size()); + // Minor optimization opportunity: + // contains_forbidden_domain_code_point_or_upper could be extend to check for + // the presence of characters that cannot appear in the ipv4 address and we + // could also check whether x and n and - are present, and so we could skip + // some of the checks below. However, the gains are likely to be small, and + // the code would be more complex. + if (is_forbidden_or_upper == 0 && + input.find("xn-") == std::string_view::npos) { + // fast path + update_base_hostname(input); + if (checkers::is_ipv4(get_hostname())) { + ada_log("parse_host fast path ipv4"); + return parse_ipv4(get_hostname()); + } + ada_log("parse_host fast path ", get_hostname()); + return true; + } + // We have encountered at least one forbidden code point or the input contains + // 'xn-' (case insensitive), so we need to call 'to_ascii' to perform the full + // conversion. + + ada_log("parse_host calling to_ascii"); + std::optional host = std::string(get_hostname()); + is_valid = ada::unicode::to_ascii(host, input, input.find('%')); + if (!is_valid) { + ada_log("parse_host to_ascii returns false"); + return is_valid = false; + } + + if (std::any_of(host.value().begin(), host.value().end(), + ada::unicode::is_forbidden_domain_code_point)) { + return is_valid = false; + } + + // If asciiDomain ends in a number, then return the result of IPv4 parsing + // asciiDomain. + if (checkers::is_ipv4(host.value())) { + ada_log("parse_host got ipv4", *host); + return parse_ipv4(host.value()); + } + + update_base_hostname(host.value()); + ADA_ASSERT_TRUE(validate()); + return true; +} + +template +bool url_aggregator::set_host_or_hostname(const std::string_view input) { + ada_log("url_aggregator::set_host_or_hostname ", input); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + if (has_opaque_path) { + return false; + } + + std::string previous_host = std::string(get_hostname()); + uint32_t previous_port = components.port; + + size_t host_end_pos = input.find('#'); + std::string _host(input.data(), host_end_pos != std::string_view::npos + ? host_end_pos + : input.size()); + helpers::remove_ascii_tab_or_newline(_host); + std::string_view new_host(_host); + + // If url's scheme is "file", then set state to file host state, instead of + // host state. + if (type != ada::scheme::type::FILE) { + std::string_view host_view(_host.data(), _host.length()); + auto [location, found_colon] = + helpers::get_host_delimiter_location(is_special(), host_view); + + // Otherwise, if c is U+003A (:) and insideBrackets is false, then: + // Note: the 'found_colon' value is true if and only if a colon was + // encountered while not inside brackets. + if (found_colon) { + if (override_hostname) { + return false; + } + std::string_view sub_buffer = new_host.substr(location + 1); + if (!sub_buffer.empty()) { + set_port(sub_buffer); + } + } + // If url is special and host_view is the empty string, validation error, + // return failure. Otherwise, if state override is given, host_view is the + // empty string, and either url includes credentials or url's port is + // non-null, return. + else if (host_view.empty() && + (is_special() || has_credentials() || has_port())) { + return false; + } + + // Let host be the result of host parsing host_view with url is not special. + if (host_view.empty() && !is_special()) { + if (has_hostname()) { + clear_hostname(); // easy! + } else if (has_dash_dot()) { + add_authority_slashes_if_needed(); + delete_dash_dot(); + } + return true; + } + + bool succeeded = parse_host(host_view); + if (!succeeded) { + update_base_hostname(previous_host); + update_base_port(previous_port); + } else if (has_dash_dot()) { + // Should remove dash_dot from pathname + delete_dash_dot(); + } + return succeeded; + } + + size_t location = new_host.find_first_of("/\\?"); + if (location != std::string_view::npos) { + new_host.remove_suffix(new_host.length() - location); + } + + if (new_host.empty()) { + // Set url's host to the empty string. + clear_hostname(); + } else { + // Let host be the result of host parsing buffer with url is not special. + if (!parse_host(new_host)) { + update_base_hostname(previous_host); + update_base_port(previous_port); + return false; + } + + // If host is "localhost", then set host to the empty string. + if (helpers::substring(buffer, components.host_start, + components.host_end) == "localhost") { + clear_hostname(); + } + } + ADA_ASSERT_TRUE(validate()); + return true; +} + +bool url_aggregator::set_host(const std::string_view input) { + ada_log("url_aggregator::set_host '", input, "'"); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + return set_host_or_hostname(input); +} + +bool url_aggregator::set_hostname(const std::string_view input) { + ada_log("url_aggregator::set_hostname '", input, "'"); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + return set_host_or_hostname(input); +} + +[[nodiscard]] std::string url_aggregator::get_origin() const noexcept { + ada_log("url_aggregator::get_origin"); + if (is_special()) { + // Return a new opaque origin. + if (type == scheme::FILE) { + return "null"; + } + + return helpers::concat(get_protocol(), "//", get_host()); + } + + if (get_protocol() == "blob:") { + std::string_view path = get_pathname(); + if (!path.empty()) { + auto out = ada::parse(path); + if (out && (out->type == scheme::HTTP || out->type == scheme::HTTPS)) { + // If pathURL's scheme is not "http" and not "https", then return a + // new opaque origin. + return helpers::concat(out->get_protocol(), "//", out->get_host()); + } + } + } + + // Return a new opaque origin. + return "null"; +} + +[[nodiscard]] std::string_view url_aggregator::get_username() const noexcept { + ada_log("url_aggregator::get_username"); + if (has_non_empty_username()) { + return helpers::substring(buffer, components.protocol_end + 2, + components.username_end); + } + return ""; +} + +[[nodiscard]] std::string_view url_aggregator::get_password() const noexcept { + ada_log("url_aggregator::get_password"); + if (has_non_empty_password()) { + return helpers::substring(buffer, components.username_end + 1, + components.host_start); + } + return ""; +} + +[[nodiscard]] std::string_view url_aggregator::get_port() const noexcept { + ada_log("url_aggregator::get_port"); + if (components.port == url_components::omitted) { + return ""; + } + return helpers::substring(buffer, components.host_end + 1, + components.pathname_start); +} + +[[nodiscard]] std::string_view url_aggregator::get_hash() const noexcept { + ada_log("url_aggregator::get_hash"); + // If this's URL's fragment is either null or the empty string, then return + // the empty string. Return U+0023 (#), followed by this's URL's fragment. + if (components.hash_start == url_components::omitted) { + return ""; + } + if (buffer.size() - components.hash_start <= 1) { + return ""; + } + return helpers::substring(buffer, components.hash_start); +} + +[[nodiscard]] std::string_view url_aggregator::get_host() const noexcept { + ada_log("url_aggregator::get_host"); + // Technically, we should check if there is a hostname, but + // the code below works even if there isn't. + // if(!has_hostname()) { return ""; } + size_t start = components.host_start; + if (components.host_end > components.host_start && + buffer[components.host_start] == '@') { + start++; + } + // if we have an empty host, then the space between components.host_end and + // components.pathname_start may be occupied by /. + if (start == components.host_end) { + return std::string_view(); + } + return helpers::substring(buffer, start, components.pathname_start); +} + +[[nodiscard]] std::string_view url_aggregator::get_hostname() const noexcept { + ada_log("url_aggregator::get_hostname"); + // Technically, we should check if there is a hostname, but + // the code below works even if there isn't. + // if(!has_hostname()) { return ""; } + size_t start = components.host_start; + // So host_start is not where the host begins. + if (components.host_end > components.host_start && + buffer[components.host_start] == '@') { + start++; + } + return helpers::substring(buffer, start, components.host_end); +} + +[[nodiscard]] std::string_view url_aggregator::get_pathname() const noexcept { + ada_log("url_aggregator::get_pathname pathname_start = ", + components.pathname_start, " buffer.size() = ", buffer.size(), + " components.search_start = ", components.search_start, + " components.hash_start = ", components.hash_start); + uint32_t ending_index = uint32_t(buffer.size()); + if (components.search_start != url_components::omitted) { + ending_index = components.search_start; + } else if (components.hash_start != url_components::omitted) { + ending_index = components.hash_start; + } + return helpers::substring(buffer, components.pathname_start, ending_index); +} + +[[nodiscard]] std::string_view url_aggregator::get_search() const noexcept { + ada_log("url_aggregator::get_search"); + // If this's URL's query is either null or the empty string, then return the + // empty string. Return U+003F (?), followed by this's URL's query. + if (components.search_start == url_components::omitted) { + return ""; + } + uint32_t ending_index = uint32_t(buffer.size()); + if (components.hash_start != url_components::omitted) { + ending_index = components.hash_start; + } + if (ending_index - components.search_start <= 1) { + return ""; + } + return helpers::substring(buffer, components.search_start, ending_index); +} + +[[nodiscard]] std::string_view url_aggregator::get_protocol() const noexcept { + ada_log("url_aggregator::get_protocol"); + return helpers::substring(buffer, 0, components.protocol_end); +} + +[[nodiscard]] std::string ada::url_aggregator::to_string() const { + ada_log("url_aggregator::to_string buffer:", buffer, "[", buffer.size(), + " bytes]"); + if (!is_valid) { + return "null"; + } + + std::string answer; + auto back = std::back_insert_iterator(answer); + answer.append("{\n"); + + answer.append("\t\"buffer\":\""); + helpers::encode_json(buffer, back); + answer.append("\",\n"); + + answer.append("\t\"protocol\":\""); + helpers::encode_json(get_protocol(), back); + answer.append("\",\n"); + + if (has_credentials()) { + answer.append("\t\"username\":\""); + helpers::encode_json(get_username(), back); + answer.append("\",\n"); + answer.append("\t\"password\":\""); + helpers::encode_json(get_password(), back); + answer.append("\",\n"); + } + + answer.append("\t\"host\":\""); + helpers::encode_json(get_host(), back); + answer.append("\",\n"); + + answer.append("\t\"path\":\""); + helpers::encode_json(get_pathname(), back); + answer.append("\",\n"); + answer.append("\t\"opaque path\":"); + answer.append((has_opaque_path ? "true" : "false")); + answer.append(",\n"); + + if (components.search_start != url_components::omitted) { + answer.append("\t\"query\":\""); + helpers::encode_json(get_search(), back); + answer.append("\",\n"); + } + if (components.hash_start != url_components::omitted) { + answer.append("\t\"fragment\":\""); + helpers::encode_json(get_hash(), back); + answer.append("\",\n"); + } + + auto convert_offset_to_string = [](uint32_t offset) -> std::string { + if (offset == url_components::omitted) { + return "null"; + } else { + return std::to_string(offset); + } + }; + + answer.append("\t\"protocol_end\":"); + answer.append(convert_offset_to_string(components.protocol_end)); + answer.append(",\n"); + + answer.append("\t\"username_end\":"); + answer.append(convert_offset_to_string(components.username_end)); + answer.append(",\n"); + + answer.append("\t\"host_start\":"); + answer.append(convert_offset_to_string(components.host_start)); + answer.append(",\n"); + + answer.append("\t\"host_end\":"); + answer.append(convert_offset_to_string(components.host_end)); + answer.append(",\n"); + + answer.append("\t\"port\":"); + answer.append(convert_offset_to_string(components.port)); + answer.append(",\n"); + + answer.append("\t\"pathname_start\":"); + answer.append(convert_offset_to_string(components.pathname_start)); + answer.append(",\n"); + + answer.append("\t\"search_start\":"); + answer.append(convert_offset_to_string(components.search_start)); + answer.append(",\n"); + + answer.append("\t\"hash_start\":"); + answer.append(convert_offset_to_string(components.hash_start)); + answer.append("\n}"); + + return answer; +} + +[[nodiscard]] bool url_aggregator::has_valid_domain() const noexcept { + if (components.host_start == components.host_end) { + return false; + } + return checkers::verify_dns_length(get_hostname()); +} + +bool url_aggregator::parse_ipv4(std::string_view input) { + ada_log("parse_ipv4 ", input, "[", input.size(), + " bytes], overlaps with buffer: ", + helpers::overlaps(input, buffer) ? "yes" : "no"); + ADA_ASSERT_TRUE(validate()); + const bool trailing_dot = (input.back() == '.'); + if (trailing_dot) { + input.remove_suffix(1); + } + size_t digit_count{0}; + int pure_decimal_count = 0; // entries that are decimal + uint64_t ipv4{0}; + // we could unroll for better performance? + for (; (digit_count < 4) && !(input.empty()); digit_count++) { + uint32_t + segment_result{}; // If any number exceeds 32 bits, we have an error. + bool is_hex = checkers::has_hex_prefix(input); + if (is_hex && ((input.length() == 2) || + ((input.length() > 2) && (input[2] == '.')))) { + // special case + segment_result = 0; + input.remove_prefix(2); + } else { + std::from_chars_result r; + if (is_hex) { + r = std::from_chars(input.data() + 2, input.data() + input.size(), + segment_result, 16); + } else if ((input.length() >= 2) && input[0] == '0' && + checkers::is_digit(input[1])) { + r = std::from_chars(input.data() + 1, input.data() + input.size(), + segment_result, 8); + } else { + pure_decimal_count++; + r = std::from_chars(input.data(), input.data() + input.size(), + segment_result, 10); + } + if (r.ec != std::errc()) { + return is_valid = false; + } + input.remove_prefix(r.ptr - input.data()); + } + if (input.empty()) { + // We have the last value. + // At this stage, ipv4 contains digit_count*8 bits. + // So we have 32-digit_count*8 bits left. + if (segment_result > (uint64_t(1) << (32 - digit_count * 8))) { + return is_valid = false; + } + ipv4 <<= (32 - digit_count * 8); + ipv4 |= segment_result; + goto final; + } else { + // There is more, so that the value must no be larger than 255 + // and we must have a '.'. + if ((segment_result > 255) || (input[0] != '.')) { + return is_valid = false; + } + ipv4 <<= 8; + ipv4 |= segment_result; + input.remove_prefix(1); // remove '.' + } + } + if ((digit_count != 4) || (!input.empty())) { + return is_valid = false; + } +final: + ada_log("url_aggregator::parse_ipv4 completed ", get_href(), + " host: ", get_host()); + + // We could also check r.ptr to see where the parsing ended. + if (pure_decimal_count == 4 && !trailing_dot) { + // The original input was already all decimal and we validated it. So we + // don't need to do anything. + } else { + // Optimization opportunity: Get rid of unnecessary string return in ipv4 + // serializer. + // TODO: This is likely a bug because it goes back update_base_hostname, not + // what we want to do. + update_base_hostname( + ada::serializers::ipv4(ipv4)); // We have to reserialize the address. + } + host_type = IPV4; + ADA_ASSERT_TRUE(validate()); + return true; +} + +bool url_aggregator::parse_ipv6(std::string_view input) { + // TODO: Find a way to merge parse_ipv6 with url.cpp implementation. + ada_log("parse_ipv6 ", input, "[", input.size(), " bytes]"); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + if (input.empty()) { + return is_valid = false; + } + // Let address be a new IPv6 address whose IPv6 pieces are all 0. + std::array address{}; + + // Let pieceIndex be 0. + int piece_index = 0; + + // Let compress be null. + std::optional compress{}; + + // Let pointer be a pointer for input. + std::string_view::iterator pointer = input.begin(); + + // If c is U+003A (:), then: + if (input[0] == ':') { + // If remaining does not start with U+003A (:), validation error, return + // failure. + if (input.size() == 1 || input[1] != ':') { + ada_log("parse_ipv6 starts with : but the rest does not start with :"); + return is_valid = false; + } + + // Increase pointer by 2. + pointer += 2; + + // Increase pieceIndex by 1 and then set compress to pieceIndex. + compress = ++piece_index; + } + + // While c is not the EOF code point: + while (pointer != input.end()) { + // If pieceIndex is 8, validation error, return failure. + if (piece_index == 8) { + ada_log("parse_ipv6 piece_index == 8"); + return is_valid = false; + } + + // If c is U+003A (:), then: + if (*pointer == ':') { + // If compress is non-null, validation error, return failure. + if (compress.has_value()) { + ada_log("parse_ipv6 compress is non-null"); + return is_valid = false; + } + + // Increase pointer and pieceIndex by 1, set compress to pieceIndex, and + // then continue. + pointer++; + compress = ++piece_index; + continue; + } + + // Let value and length be 0. + uint16_t value = 0, length = 0; + + // While length is less than 4 and c is an ASCII hex digit, + // set value to value times 0x10 + c interpreted as hexadecimal number, and + // increase pointer and length by 1. + while (length < 4 && pointer != input.end() && + unicode::is_ascii_hex_digit(*pointer)) { + // https://stackoverflow.com/questions/39060852/why-does-the-addition-of-two-shorts-return-an-int + value = uint16_t(value * 0x10 + unicode::convert_hex_to_binary(*pointer)); + pointer++; + length++; + } + + // If c is U+002E (.), then: + if (pointer != input.end() && *pointer == '.') { + // If length is 0, validation error, return failure. + if (length == 0) { + ada_log("parse_ipv6 length is 0"); + return is_valid = false; + } + + // Decrease pointer by length. + pointer -= length; + + // If pieceIndex is greater than 6, validation error, return failure. + if (piece_index > 6) { + ada_log("parse_ipv6 piece_index > 6"); + return is_valid = false; + } + + // Let numbersSeen be 0. + int numbers_seen = 0; + + // While c is not the EOF code point: + while (pointer != input.end()) { + // Let ipv4Piece be null. + std::optional ipv4_piece{}; + + // If numbersSeen is greater than 0, then: + if (numbers_seen > 0) { + // If c is a U+002E (.) and numbersSeen is less than 4, then increase + // pointer by 1. + if (*pointer == '.' && numbers_seen < 4) { + pointer++; + } else { + // Otherwise, validation error, return failure. + ada_log("parse_ipv6 Otherwise, validation error, return failure"); + return is_valid = false; + } + } + + // If c is not an ASCII digit, validation error, return failure. + if (pointer == input.end() || !checkers::is_digit(*pointer)) { + ada_log( + "parse_ipv6 If c is not an ASCII digit, validation error, return " + "failure"); + return is_valid = false; + } + + // While c is an ASCII digit: + while (pointer != input.end() && checkers::is_digit(*pointer)) { + // Let number be c interpreted as decimal number. + int number = *pointer - '0'; + + // If ipv4Piece is null, then set ipv4Piece to number. + if (!ipv4_piece.has_value()) { + ipv4_piece = number; + } + // Otherwise, if ipv4Piece is 0, validation error, return failure. + else if (ipv4_piece == 0) { + ada_log("parse_ipv6 if ipv4Piece is 0, validation error"); + return is_valid = false; + } + // Otherwise, set ipv4Piece to ipv4Piece times 10 + number. + else { + ipv4_piece = *ipv4_piece * 10 + number; + } + + // If ipv4Piece is greater than 255, validation error, return failure. + if (ipv4_piece > 255) { + ada_log("parse_ipv6 ipv4_piece > 255"); + return is_valid = false; + } + + // Increase pointer by 1. + pointer++; + } + + // Set address[pieceIndex] to address[pieceIndex] times 0x100 + + // ipv4Piece. + // https://stackoverflow.com/questions/39060852/why-does-the-addition-of-two-shorts-return-an-int + address[piece_index] = + uint16_t(address[piece_index] * 0x100 + *ipv4_piece); + + // Increase numbersSeen by 1. + numbers_seen++; + + // If numbersSeen is 2 or 4, then increase pieceIndex by 1. + if (numbers_seen == 2 || numbers_seen == 4) { + piece_index++; + } + } + + // If numbersSeen is not 4, validation error, return failure. + if (numbers_seen != 4) { + return is_valid = false; + } + + // Break. + break; + } + // Otherwise, if c is U+003A (:): + else if ((pointer != input.end()) && (*pointer == ':')) { + // Increase pointer by 1. + pointer++; + + // If c is the EOF code point, validation error, return failure. + if (pointer == input.end()) { + ada_log( + "parse_ipv6 If c is the EOF code point, validation error, return " + "failure"); + return is_valid = false; + } + } + // Otherwise, if c is not the EOF code point, validation error, return + // failure. + else if (pointer != input.end()) { + ada_log( + "parse_ipv6 Otherwise, if c is not the EOF code point, validation " + "error, return failure"); + return is_valid = false; + } + + // Set address[pieceIndex] to value. + address[piece_index] = value; + + // Increase pieceIndex by 1. + piece_index++; + } + + // If compress is non-null, then: + if (compress.has_value()) { + // Let swaps be pieceIndex - compress. + int swaps = piece_index - *compress; + + // Set pieceIndex to 7. + piece_index = 7; + + // While pieceIndex is not 0 and swaps is greater than 0, + // swap address[pieceIndex] with address[compress + swaps - 1], and then + // decrease both pieceIndex and swaps by 1. + while (piece_index != 0 && swaps > 0) { + std::swap(address[piece_index], address[*compress + swaps - 1]); + piece_index--; + swaps--; + } + } + // Otherwise, if compress is null and pieceIndex is not 8, validation error, + // return failure. + else if (piece_index != 8) { + ada_log( + "parse_ipv6 if compress is null and pieceIndex is not 8, validation " + "error, return failure"); + return is_valid = false; + } + // TODO: Optimization opportunity: Get rid of unnecessary string creation. + // TODO: This is likely a bug because it goes back update_base_hostname, not + // what we want to do. + update_base_hostname(ada::serializers::ipv6(address)); + ada_log("parse_ipv6 ", get_hostname()); + ADA_ASSERT_TRUE(validate()); + host_type = IPV6; + return true; +} + +bool url_aggregator::parse_opaque_host(std::string_view input) { + ada_log("parse_opaque_host ", input, "[", input.size(), " bytes]"); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + if (std::any_of(input.begin(), input.end(), + ada::unicode::is_forbidden_host_code_point)) { + return is_valid = false; + } + + // Return the result of running UTF-8 percent-encode on input using the C0 + // control percent-encode set. + size_t idx = ada::unicode::percent_encode_index( + input, character_sets::C0_CONTROL_PERCENT_ENCODE); + if (idx == input.size()) { + update_base_hostname(input); + } else { + // We only create a temporary string if we need to. + update_base_hostname(ada::unicode::percent_encode( + input, character_sets::C0_CONTROL_PERCENT_ENCODE, idx)); + } + ADA_ASSERT_TRUE(validate()); + return true; +} + +[[nodiscard]] std::string url_aggregator::to_diagram() const { + if (!is_valid) { + return "invalid"; + } + std::string answer; + answer.append(buffer); + answer.append(" ["); + answer.append(std::to_string(buffer.size())); + answer.append(" bytes]"); + answer.append("\n"); + // first line + std::string line1; + line1.resize(buffer.size(), ' '); + if (components.hash_start != url_components::omitted) { + line1[components.hash_start] = '|'; + } + if (components.search_start != url_components::omitted) { + line1[components.search_start] = '|'; + } + if (components.pathname_start != buffer.size()) { + line1[components.pathname_start] = '|'; + } + if (components.host_end != buffer.size()) { + line1[components.host_end] = '|'; + } + if (components.host_start != buffer.size()) { + line1[components.host_start] = '|'; + } + if (components.username_end != buffer.size()) { + line1[components.username_end] = '|'; + } + if (components.protocol_end != buffer.size()) { + line1[components.protocol_end] = '|'; + } + answer.append(line1); + answer.append("\n"); + + std::string line2 = line1; + if (components.hash_start != url_components::omitted) { + line2[components.hash_start] = '`'; + line1[components.hash_start] = ' '; + + for (size_t i = components.hash_start + 1; i < line2.size(); i++) { + line2[i] = '-'; + } + line2.append(" hash_start"); + answer.append(line2); + answer.append("\n"); + } + + std::string line3 = line1; + if (components.search_start != url_components::omitted) { + line3[components.search_start] = '`'; + line1[components.search_start] = ' '; + + for (size_t i = components.search_start + 1; i < line3.size(); i++) { + line3[i] = '-'; + } + line3.append(" search_start "); + line3.append(std::to_string(components.search_start)); + answer.append(line3); + answer.append("\n"); + } + + std::string line4 = line1; + if (components.pathname_start != buffer.size()) { + line4[components.pathname_start] = '`'; + line1[components.pathname_start] = ' '; + for (size_t i = components.pathname_start + 1; i < line4.size(); i++) { + line4[i] = '-'; + } + line4.append(" pathname_start "); + line4.append(std::to_string(components.pathname_start)); + answer.append(line4); + answer.append("\n"); + } + + std::string line5 = line1; + if (components.host_end != buffer.size()) { + line5[components.host_end] = '`'; + line1[components.host_end] = ' '; + + for (size_t i = components.host_end + 1; i < line5.size(); i++) { + line5[i] = '-'; + } + line5.append(" host_end "); + line5.append(std::to_string(components.host_end)); + answer.append(line5); + answer.append("\n"); + } + + std::string line6 = line1; + if (components.host_start != buffer.size()) { + line6[components.host_start] = '`'; + line1[components.host_start] = ' '; + + for (size_t i = components.host_start + 1; i < line6.size(); i++) { + line6[i] = '-'; + } + line6.append(" host_start "); + line6.append(std::to_string(components.host_start)); + answer.append(line6); + answer.append("\n"); + } + + std::string line7 = line1; + if (components.username_end != buffer.size()) { + line7[components.username_end] = '`'; + line1[components.username_end] = ' '; + + for (size_t i = components.username_end + 1; i < line7.size(); i++) { + line7[i] = '-'; + } + line7.append(" username_end "); + line7.append(std::to_string(components.username_end)); + answer.append(line7); + answer.append("\n"); + } + + std::string line8 = line1; + if (components.protocol_end != buffer.size()) { + line8[components.protocol_end] = '`'; + line1[components.protocol_end] = ' '; + + for (size_t i = components.protocol_end + 1; i < line8.size(); i++) { + line8[i] = '-'; + } + line8.append(" protocol_end "); + line8.append(std::to_string(components.protocol_end)); + answer.append(line8); + answer.append("\n"); + } + + if (components.hash_start == url_components::omitted) { + answer.append("note: hash omitted\n"); + } + if (components.search_start == url_components::omitted) { + answer.append("note: search omitted\n"); + } + if (components.protocol_end > buffer.size()) { + answer.append("warning: protocol_end overflows\n"); + } + if (components.username_end > buffer.size()) { + answer.append("warning: username_end overflows\n"); + } + if (components.host_start > buffer.size()) { + answer.append("warning: host_start overflows\n"); + } + if (components.host_end > buffer.size()) { + answer.append("warning: host_end overflows\n"); + } + if (components.pathname_start > buffer.size()) { + answer.append("warning: pathname_start overflows\n"); + } + return answer; +} + +[[nodiscard]] bool url_aggregator::validate() const noexcept { + if (!is_valid) { + return true; + } + if (!components.check_offset_consistency()) { + ada_log("url_aggregator::validate inconsistent components \n", + to_diagram()); + return false; + } + // We have a credible components struct, but let us investivate more + // carefully: + /** + * https://user:pass@example.com:1234/foo/bar?baz#quux + * | | | | ^^^^| | | + * | | | | | | | `----- hash_start + * | | | | | | `--------- search_start + * | | | | | `----------------- pathname_start + * | | | | `--------------------- port + * | | | `----------------------- host_end + * | | `---------------------------------- host_start + * | `--------------------------------------- username_end + * `--------------------------------------------- protocol_end + */ + if (components.protocol_end == url_components::omitted) { + ada_log("url_aggregator::validate omitted protocol_end \n", to_diagram()); + return false; + } + if (components.username_end == url_components::omitted) { + ada_log("url_aggregator::validate omitted username_end \n", to_diagram()); + return false; + } + if (components.host_start == url_components::omitted) { + ada_log("url_aggregator::validate omitted host_start \n", to_diagram()); + return false; + } + if (components.host_end == url_components::omitted) { + ada_log("url_aggregator::validate omitted host_end \n", to_diagram()); + return false; + } + if (components.pathname_start == url_components::omitted) { + ada_log("url_aggregator::validate omitted pathname_start \n", to_diagram()); + return false; + } + + if (components.protocol_end > buffer.size()) { + ada_log("url_aggregator::validate protocol_end overflow \n", to_diagram()); + return false; + } + if (components.username_end > buffer.size()) { + ada_log("url_aggregator::validate username_end overflow \n", to_diagram()); + return false; + } + if (components.host_start > buffer.size()) { + ada_log("url_aggregator::validate host_start overflow \n", to_diagram()); + return false; + } + if (components.host_end > buffer.size()) { + ada_log("url_aggregator::validate host_end overflow \n", to_diagram()); + return false; + } + if (components.pathname_start > buffer.size()) { + ada_log("url_aggregator::validate pathname_start overflow \n", + to_diagram()); + return false; + } + + if (components.protocol_end > 0) { + if (buffer[components.protocol_end - 1] != ':') { + ada_log( + "url_aggregator::validate missing : at the end of the protocol \n", + to_diagram()); + return false; + } + } + + if (components.username_end != buffer.size() && + components.username_end > components.protocol_end + 2) { + if (buffer[components.username_end] != ':' && + buffer[components.username_end] != '@') { + ada_log( + "url_aggregator::validate missing : or @ at the end of the username " + "\n", + to_diagram()); + return false; + } + } + + if (components.host_start != buffer.size()) { + if (components.host_start > components.username_end) { + if (buffer[components.host_start] != '@') { + ada_log( + "url_aggregator::validate missing @ at the end of the password \n", + to_diagram()); + return false; + } + } else if (components.host_start == components.username_end && + components.host_end > components.host_start) { + if (components.host_start == components.protocol_end + 2) { + if (buffer[components.protocol_end] != '/' || + buffer[components.protocol_end + 1] != '/') { + ada_log( + "url_aggregator::validate missing // between protocol and host " + "\n", + to_diagram()); + return false; + } + } else { + if (components.host_start > components.protocol_end && + buffer[components.host_start] != '@') { + ada_log( + "url_aggregator::validate missing @ at the end of the username " + "\n", + to_diagram()); + return false; + } + } + } else { + if (components.host_end != components.host_start) { + ada_log("url_aggregator::validate expected omitted host \n", + to_diagram()); + return false; + } + } + } + if (components.host_end != buffer.size() && + components.pathname_start > components.host_end) { + if (components.pathname_start == components.host_end + 2 && + buffer[components.host_end] == '/' && + buffer[components.host_end + 1] == '.') { + if (components.pathname_start + 1 >= buffer.size() || + buffer[components.pathname_start] != '/' || + buffer[components.pathname_start + 1] != '/') { + ada_log( + "url_aggregator::validate expected the path to begin with // \n", + to_diagram()); + return false; + } + } else if (buffer[components.host_end] != ':') { + ada_log("url_aggregator::validate missing : at the port \n", + to_diagram()); + return false; + } + } + if (components.pathname_start != buffer.size() && + components.pathname_start < components.search_start && + components.pathname_start < components.hash_start && !has_opaque_path) { + if (buffer[components.pathname_start] != '/') { + ada_log("url_aggregator::validate missing / at the path \n", + to_diagram()); + return false; + } + } + if (components.search_start != url_components::omitted) { + if (buffer[components.search_start] != '?') { + ada_log("url_aggregator::validate missing ? at the search \n", + to_diagram()); + return false; + } + } + if (components.hash_start != url_components::omitted) { + if (buffer[components.hash_start] != '#') { + ada_log("url_aggregator::validate missing # at the hash \n", + to_diagram()); + return false; + } + } + + return true; +} + +void url_aggregator::delete_dash_dot() { + ada_log("url_aggregator::delete_dash_dot"); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(has_dash_dot()); + buffer.erase(components.host_end, 2); + components.pathname_start -= 2; + if (components.search_start != url_components::omitted) { + components.search_start -= 2; + } + if (components.hash_start != url_components::omitted) { + components.hash_start -= 2; + } + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!has_dash_dot()); +} + +inline void url_aggregator::consume_prepared_path(std::string_view input) { + ada_log("url_aggregator::consume_prepared_path ", input); + /*** + * This is largely duplicated code from helpers::parse_prepared_path, which is + * unfortunate. This particular function is nearly identical, except that it + * is a method on url_aggregator. The idea is that the trivial path (which is + * very common) merely appends to the buffer. This is the same trivial path as + * with helpers::parse_prepared_path, except that we have the additional check + * for is_at_path(). Otherwise, we grab a copy of the current path and we + * modify it, and then insert it back into the buffer. + */ + uint8_t accumulator = checkers::path_signature(input); + // Let us first detect a trivial case. + // If it is special, we check that we have no dot, no %, no \ and no + // character needing percent encoding. Otherwise, we check that we have no %, + // no dot, and no character needing percent encoding. + constexpr uint8_t need_encoding = 1; + constexpr uint8_t backslash_char = 2; + constexpr uint8_t dot_char = 4; + constexpr uint8_t percent_char = 8; + bool special = type != ada::scheme::NOT_SPECIAL; + bool may_need_slow_file_handling = (type == ada::scheme::type::FILE && + checkers::is_windows_drive_letter(input)); + bool trivial_path = + (special ? (accumulator == 0) + : ((accumulator & (need_encoding | dot_char | percent_char)) == + 0)) && + (!may_need_slow_file_handling); + if (accumulator == dot_char && !may_need_slow_file_handling) { + // '4' means that we have at least one dot, but nothing that requires + // percent encoding or decoding. The only part that is not trivial is + // that we may have single dots and double dots path segments. + // If we have such segments, then we either have a path that begins + // with '.' (easy to check), or we have the sequence './'. + // Note: input cannot be empty, it must at least contain one character ('.') + // Note: we know that '\' is not present. + if (input[0] != '.') { + size_t slashdot = input.find("/."); + if (slashdot == std::string_view::npos) { // common case + trivial_path = true; + } else { // uncommon + // only three cases matter: /./, /.. or a final / + trivial_path = + !(slashdot + 2 == input.size() || input[slashdot + 2] == '.' || + input[slashdot + 2] == '/'); + } + } + } + if (trivial_path && is_at_path()) { + ada_log("parse_path trivial"); + buffer += '/'; + buffer += input; + return; + } + std::string path = std::string(get_pathname()); + // We are going to need to look a bit at the path, but let us see if we can + // ignore percent encoding *and* backslashes *and* percent characters. + // Except for the trivial case, this is likely to capture 99% of paths out + // there. + bool fast_path = + (special && + (accumulator & (need_encoding | backslash_char | percent_char)) == 0) && + (type != ada::scheme::type::FILE); + if (fast_path) { + ada_log("parse_prepared_path fast"); + // Here we don't need to worry about \ or percent encoding. + // We also do not have a file protocol. We might have dots, however, + // but dots must as appear as '.', and they cannot be encoded because + // the symbol '%' is not present. + size_t previous_location = 0; // We start at 0. + do { + size_t new_location = input.find('/', previous_location); + // std::string_view path_view = input; + // We process the last segment separately: + if (new_location == std::string_view::npos) { + std::string_view path_view = input.substr(previous_location); + if (path_view == "..") { // The path ends with .. + // e.g., if you receive ".." with an empty path, you go to "/". + if (path.empty()) { + path = '/'; + update_base_pathname(path); + return; + } + // Fast case where we have nothing to do: + if (path.back() == '/') { + update_base_pathname(path); + return; + } + // If you have the path "/joe/myfriend", + // then you delete 'myfriend'. + path.resize(path.rfind('/') + 1); + update_base_pathname(path); + return; + } + path += '/'; + if (path_view != ".") { + path.append(path_view); + } + update_base_pathname(path); + return; + } else { + // This is a non-final segment. + std::string_view path_view = + input.substr(previous_location, new_location - previous_location); + previous_location = new_location + 1; + if (path_view == "..") { + size_t last_delimiter = path.rfind('/'); + if (last_delimiter != std::string::npos) { + path.erase(last_delimiter); + } + } else if (path_view != ".") { + path += '/'; + path.append(path_view); + } + } + } while (true); + } else { + ada_log("parse_path slow"); + // we have reached the general case + bool needs_percent_encoding = (accumulator & 1); + std::string path_buffer_tmp; + do { + size_t location = (special && (accumulator & 2)) + ? input.find_first_of("/\\") + : input.find('/'); + std::string_view path_view = input; + if (location != std::string_view::npos) { + path_view.remove_suffix(path_view.size() - location); + input.remove_prefix(location + 1); + } + // path_buffer is either path_view or it might point at a percent encoded + // temporary string. + std::string_view path_buffer = + (needs_percent_encoding && + ada::unicode::percent_encode( + path_view, character_sets::PATH_PERCENT_ENCODE, path_buffer_tmp)) + ? path_buffer_tmp + : path_view; + if (unicode::is_double_dot_path_segment(path_buffer)) { + if ((helpers::shorten_path(path, type) || special) && + location == std::string_view::npos) { + path += '/'; + } + } else if (unicode::is_single_dot_path_segment(path_buffer) && + (location == std::string_view::npos)) { + path += '/'; + } + // Otherwise, if path_buffer is not a single-dot path segment, then: + else if (!unicode::is_single_dot_path_segment(path_buffer)) { + // If url's scheme is "file", url's path is empty, and path_buffer is a + // Windows drive letter, then replace the second code point in + // path_buffer with U+003A (:). + if (type == ada::scheme::type::FILE && path.empty() && + checkers::is_windows_drive_letter(path_buffer)) { + path += '/'; + path += path_buffer[0]; + path += ':'; + path_buffer.remove_prefix(2); + path.append(path_buffer); + } else { + // Append path_buffer to url's path. + path += '/'; + path.append(path_buffer); + } + } + if (location == std::string_view::npos) { + update_base_pathname(path); + return; + } + } while (true); + } +} +} // namespace ada +/* end file src/url_aggregator.cpp */ +/* begin file src/ada_c.cpp */ + +ada::result& get_instance(void* result) noexcept { + return *(ada::result*)result; +} + +extern "C" { +typedef void* ada_url; +typedef void* ada_url_search_params; +typedef void* ada_strings; +typedef void* ada_url_search_params_keys_iter; +typedef void* ada_url_search_params_values_iter; +typedef void* ada_url_search_params_entries_iter; + +struct ada_string { + const char* data; + size_t length; +}; + +struct ada_owned_string { + const char* data; + size_t length; +}; + +struct ada_string_pair { + ada_string key; + ada_string value; +}; + +ada_string ada_string_create(const char* data, size_t length) { + ada_string out{}; + out.data = data; + out.length = length; + return out; +} + +struct ada_url_components { + /* + * By using 32-bit integers, we implicitly assume that the URL string + * cannot exceed 4 GB. + * + * https://user:pass@example.com:1234/foo/bar?baz#quux + * | | | | ^^^^| | | + * | | | | | | | `----- hash_start + * | | | | | | `--------- search_start + * | | | | | `----------------- pathname_start + * | | | | `--------------------- port + * | | | `----------------------- host_end + * | | `---------------------------------- host_start + * | `--------------------------------------- username_end + * `--------------------------------------------- protocol_end + */ + uint32_t protocol_end; + /** + * Username end is not `omitted` by default (-1) to make username and password + * getters less costly to implement. + */ + uint32_t username_end; + uint32_t host_start; + uint32_t host_end; + uint32_t port; + uint32_t pathname_start; + uint32_t search_start; + uint32_t hash_start; +}; + +ada_url ada_parse(const char* input, size_t length) noexcept { + return new ada::result( + ada::parse(std::string_view(input, length))); +} + +ada_url ada_parse_with_base(const char* input, size_t input_length, + const char* base, size_t base_length) noexcept { + auto base_out = + ada::parse(std::string_view(base, base_length)); + + if (!base_out) { + return new ada::result(base_out); + } + + return new ada::result(ada::parse( + std::string_view(input, input_length), &base_out.value())); +} + +bool ada_can_parse(const char* input, size_t length) noexcept { + return ada::can_parse(std::string_view(input, length)); +} + +bool ada_can_parse_with_base(const char* input, size_t input_length, + const char* base, size_t base_length) noexcept { + auto base_view = std::string_view(base, base_length); + return ada::can_parse(std::string_view(input, input_length), &base_view); +} + +void ada_free(ada_url result) noexcept { + ada::result* r = + (ada::result*)result; + delete r; +} + +ada_url ada_copy(ada_url input) noexcept { + ada::result& r = get_instance(input); + return new ada::result(r); +} + +bool ada_is_valid(ada_url result) noexcept { + ada::result& r = get_instance(result); + return r.has_value(); +} + +// caller must free the result with ada_free_owned_string +ada_owned_string ada_get_origin(ada_url result) noexcept { + ada::result& r = get_instance(result); + ada_owned_string owned; + if (!r) { + owned.data = nullptr; + owned.length = 0; + return owned; + } + std::string out = r->get_origin(); + owned.length = out.size(); + owned.data = new char[owned.length]; + memcpy((void*)owned.data, out.data(), owned.length); + return owned; +} + +void ada_free_owned_string(ada_owned_string owned) noexcept { + delete[] owned.data; + owned.data = nullptr; + owned.length = 0; +} + +ada_string ada_get_href(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return ada_string_create(NULL, 0); + } + std::string_view out = r->get_href(); + return ada_string_create(out.data(), out.length()); +} + +ada_string ada_get_username(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return ada_string_create(NULL, 0); + } + std::string_view out = r->get_username(); + return ada_string_create(out.data(), out.length()); +} + +ada_string ada_get_password(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return ada_string_create(NULL, 0); + } + std::string_view out = r->get_password(); + return ada_string_create(out.data(), out.length()); +} + +ada_string ada_get_port(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return ada_string_create(NULL, 0); + } + std::string_view out = r->get_port(); + return ada_string_create(out.data(), out.length()); +} + +ada_string ada_get_hash(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return ada_string_create(NULL, 0); + } + std::string_view out = r->get_hash(); + return ada_string_create(out.data(), out.length()); +} + +ada_string ada_get_host(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return ada_string_create(NULL, 0); + } + std::string_view out = r->get_host(); + return ada_string_create(out.data(), out.length()); +} + +ada_string ada_get_hostname(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return ada_string_create(NULL, 0); + } + std::string_view out = r->get_hostname(); + return ada_string_create(out.data(), out.length()); +} + +ada_string ada_get_pathname(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return ada_string_create(NULL, 0); + } + std::string_view out = r->get_pathname(); + return ada_string_create(out.data(), out.length()); +} + +ada_string ada_get_search(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return ada_string_create(NULL, 0); + } + std::string_view out = r->get_search(); + return ada_string_create(out.data(), out.length()); +} + +ada_string ada_get_protocol(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return ada_string_create(NULL, 0); + } + std::string_view out = r->get_protocol(); + return ada_string_create(out.data(), out.length()); +} + +uint8_t ada_get_host_type(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return 0; + } + return r->host_type; +} + +uint8_t ada_get_scheme_type(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return 0; + } + return r->type; +} + +bool ada_set_href(ada_url result, const char* input, size_t length) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->set_href(std::string_view(input, length)); +} + +bool ada_set_host(ada_url result, const char* input, size_t length) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->set_host(std::string_view(input, length)); +} + +bool ada_set_hostname(ada_url result, const char* input, + size_t length) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->set_hostname(std::string_view(input, length)); +} + +bool ada_set_protocol(ada_url result, const char* input, + size_t length) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->set_protocol(std::string_view(input, length)); +} + +bool ada_set_username(ada_url result, const char* input, + size_t length) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->set_username(std::string_view(input, length)); +} + +bool ada_set_password(ada_url result, const char* input, + size_t length) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->set_password(std::string_view(input, length)); +} + +bool ada_set_port(ada_url result, const char* input, size_t length) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->set_port(std::string_view(input, length)); +} + +bool ada_set_pathname(ada_url result, const char* input, + size_t length) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->set_pathname(std::string_view(input, length)); +} + +/** + * Update the search/query of the URL. + * + * If a URL has `?` as the search value, passing empty string to this function + * does not remove the attribute. If you need to remove it, please use + * `ada_clear_search` method. + */ +void ada_set_search(ada_url result, const char* input, size_t length) noexcept { + ada::result& r = get_instance(result); + if (r) { + r->set_search(std::string_view(input, length)); + } +} + +/** + * Update the hash/fragment of the URL. + * + * If a URL has `#` as the hash value, passing empty string to this function + * does not remove the attribute. If you need to remove it, please use + * `ada_clear_hash` method. + */ +void ada_set_hash(ada_url result, const char* input, size_t length) noexcept { + ada::result& r = get_instance(result); + if (r) { + r->set_hash(std::string_view(input, length)); + } +} + +void ada_clear_port(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (r) { + r->clear_port(); + } +} + +/** + * Removes the hash of the URL. + * + * Despite `ada_set_hash` method, this function allows the complete + * removal of the hash attribute, even if it has a value of `#`. + */ +void ada_clear_hash(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (r) { + r->clear_hash(); + } +} + +/** + * Removes the search of the URL. + * + * Despite `ada_set_search` method, this function allows the complete + * removal of the search attribute, even if it has a value of `?`. + */ +void ada_clear_search(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (r) { + r->clear_search(); + } +} + +bool ada_has_credentials(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->has_credentials(); +} + +bool ada_has_empty_hostname(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->has_empty_hostname(); +} + +bool ada_has_hostname(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->has_hostname(); +} + +bool ada_has_non_empty_username(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->has_non_empty_username(); +} + +bool ada_has_non_empty_password(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->has_non_empty_password(); +} + +bool ada_has_port(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->has_port(); +} + +bool ada_has_password(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->has_password(); +} + +bool ada_has_hash(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->has_hash(); +} + +bool ada_has_search(ada_url result) noexcept { + ada::result& r = get_instance(result); + if (!r) { + return false; + } + return r->has_search(); +} + +// returns a pointer to the internal url_aggregator::url_components +const ada_url_components* ada_get_components(ada_url result) noexcept { + static_assert(sizeof(ada_url_components) == sizeof(ada::url_components)); + ada::result& r = get_instance(result); + if (!r) { + return nullptr; + } + return reinterpret_cast(&r->get_components()); +} + +ada_owned_string ada_idna_to_unicode(const char* input, size_t length) { + std::string out = ada::idna::to_unicode(std::string_view(input, length)); + ada_owned_string owned{}; + owned.length = out.length(); + owned.data = new char[owned.length]; + memcpy((void*)owned.data, out.data(), owned.length); + return owned; +} + +ada_owned_string ada_idna_to_ascii(const char* input, size_t length) { + std::string out = ada::idna::to_ascii(std::string_view(input, length)); + ada_owned_string owned{}; + owned.length = out.size(); + owned.data = new char[owned.length]; + memcpy((void*)owned.data, out.data(), owned.length); + return owned; +} + +ada_url_search_params ada_parse_search_params(const char* input, + size_t length) { + return new ada::result( + ada::url_search_params(std::string_view(input, length))); +} + +void ada_free_search_params(ada_url_search_params result) { + ada::result* r = + (ada::result*)result; + delete r; +} + +ada_owned_string ada_search_params_to_string(ada_url_search_params result) { + ada::result& r = + *(ada::result*)result; + if (!r) return ada_owned_string{NULL, 0}; + std::string out = r->to_string(); + ada_owned_string owned{}; + owned.length = out.size(); + owned.data = new char[owned.length]; + memcpy((void*)owned.data, out.data(), owned.length); + return owned; +} + +size_t ada_search_params_size(ada_url_search_params result) { + ada::result& r = + *(ada::result*)result; + if (!r) return 0; + return r->size(); +} + +void ada_search_params_sort(ada_url_search_params result) { + ada::result& r = + *(ada::result*)result; + if (r) r->sort(); +} + +void ada_search_params_append(ada_url_search_params result, const char* key, + size_t key_length, const char* value, + size_t value_length) { + ada::result& r = + *(ada::result*)result; + if (r) { + r->append(std::string_view(key, key_length), + std::string_view(value, value_length)); + } +} + +void ada_search_params_set(ada_url_search_params result, const char* key, + size_t key_length, const char* value, + size_t value_length) { + ada::result& r = + *(ada::result*)result; + if (r) { + r->set(std::string_view(key, key_length), + std::string_view(value, value_length)); + } +} + +void ada_search_params_remove(ada_url_search_params result, const char* key, + size_t key_length) { + ada::result& r = + *(ada::result*)result; + if (r) { + r->remove(std::string_view(key, key_length)); + } +} + +void ada_search_params_remove_value(ada_url_search_params result, + const char* key, size_t key_length, + const char* value, size_t value_length) { + ada::result& r = + *(ada::result*)result; + if (r) { + r->remove(std::string_view(key, key_length), + std::string_view(value, value_length)); + } +} + +bool ada_search_params_has(ada_url_search_params result, const char* key, + size_t key_length) { + ada::result& r = + *(ada::result*)result; + if (!r) return false; + return r->has(std::string_view(key, key_length)); +} + +bool ada_search_params_has_value(ada_url_search_params result, const char* key, + size_t key_length, const char* value, + size_t value_length) { + ada::result& r = + *(ada::result*)result; + if (!r) return false; + return r->has(std::string_view(key, key_length), + std::string_view(value, value_length)); +} + +ada_string ada_search_params_get(ada_url_search_params result, const char* key, + size_t key_length) { + ada::result& r = + *(ada::result*)result; + if (!r) return ada_string_create(NULL, 0); + auto found = r->get(std::string_view(key, key_length)); + if (!found.has_value()) return ada_string_create(NULL, 0); + return ada_string_create(found->data(), found->length()); +} + +ada_strings ada_search_params_get_all(ada_url_search_params result, + const char* key, size_t key_length) { + ada::result& r = + *(ada::result*)result; + if (!r) { + return new ada::result>( + std::vector()); + } + return new ada::result>( + r->get_all(std::string_view(key, key_length))); +} + +ada_url_search_params_keys_iter ada_search_params_get_keys( + ada_url_search_params result) { + ada::result& r = + *(ada::result*)result; + if (!r) { + return new ada::result( + ada::url_search_params_keys_iter()); + } + return new ada::result(r->get_keys()); +} + +ada_url_search_params_values_iter ada_search_params_get_values( + ada_url_search_params result) { + ada::result& r = + *(ada::result*)result; + if (!r) { + return new ada::result( + ada::url_search_params_values_iter()); + } + return new ada::result(r->get_values()); +} + +ada_url_search_params_entries_iter ada_search_params_get_entries( + ada_url_search_params result) { + ada::result& r = + *(ada::result*)result; + if (!r) { + return new ada::result( + ada::url_search_params_entries_iter()); + } + return new ada::result(r->get_entries()); +} + +void ada_free_strings(ada_strings result) { + ada::result>* r = + (ada::result>*)result; + delete r; +} + +size_t ada_strings_size(ada_strings result) { + ada::result>* r = + (ada::result>*)result; + if (!r) return 0; + return (*r)->size(); +} + +ada_string ada_strings_get(ada_strings result, size_t index) { + ada::result>* r = + (ada::result>*)result; + if (!r) return ada_string_create(NULL, 0); + std::string_view view = (*r)->at(index); + return ada_string_create(view.data(), view.length()); +} + +void ada_free_search_params_keys_iter(ada_url_search_params_keys_iter result) { + ada::result* r = + (ada::result*)result; + delete r; +} + +ada_string ada_search_params_keys_iter_next( + ada_url_search_params_keys_iter result) { + ada::result* r = + (ada::result*)result; + if (!r) return ada_string_create(NULL, 0); + auto next = (*r)->next(); + if (!next.has_value()) return ada_string_create(NULL, 0); + return ada_string_create(next->data(), next->length()); +} + +bool ada_search_params_keys_iter_has_next( + ada_url_search_params_keys_iter result) { + ada::result* r = + (ada::result*)result; + if (!r) return false; + return (*r)->has_next(); +} + +void ada_free_search_params_values_iter( + ada_url_search_params_values_iter result) { + ada::result* r = + (ada::result*)result; + delete r; +} + +ada_string ada_search_params_values_iter_next( + ada_url_search_params_values_iter result) { + ada::result* r = + (ada::result*)result; + if (!r) return ada_string_create(NULL, 0); + auto next = (*r)->next(); + if (!next.has_value()) return ada_string_create(NULL, 0); + return ada_string_create(next->data(), next->length()); +} + +bool ada_search_params_values_iter_has_next( + ada_url_search_params_values_iter result) { + ada::result* r = + (ada::result*)result; + if (!r) return false; + return (*r)->has_next(); +} + +void ada_free_search_params_entries_iter( + ada_url_search_params_entries_iter result) { + ada::result* r = + (ada::result*)result; + delete r; +} + +ada_string_pair ada_search_params_entries_iter_next( + ada_url_search_params_entries_iter result) { + ada::result* r = + (ada::result*)result; + if (!r) return {ada_string_create(NULL, 0), ada_string_create(NULL, 0)}; + auto next = (*r)->next(); + if (!next.has_value()) + return {ada_string_create(NULL, 0), ada_string_create(NULL, 0)}; + return ada_string_pair{ + ada_string_create(next->first.data(), next->first.length()), + ada_string_create(next->second.data(), next->second.length())}; +} + +bool ada_search_params_entries_iter_has_next( + ada_url_search_params_entries_iter result) { + ada::result* r = + (ada::result*)result; + if (!r) return false; + return (*r)->has_next(); +} + +} // extern "C" +/* end file src/ada_c.cpp */ +/* end file src/ada.cpp */ diff --git a/NativeScript/ada/ada.h b/NativeScript/ada/ada.h new file mode 100644 index 00000000..a4aa39d1 --- /dev/null +++ b/NativeScript/ada/ada.h @@ -0,0 +1,7153 @@ +/* auto-generated on 2023-11-19 13:35:02 -0500. Do not edit! */ +/* begin file include/ada.h */ +/** + * @file ada.h + * @brief Includes all definitions for Ada. + */ +#ifndef ADA_H +#define ADA_H + +/* begin file include/ada/ada_idna.h */ +/* auto-generated on 2023-09-19 15:58:51 -0400. Do not edit! */ +/* begin file include/idna.h */ +#ifndef ADA_IDNA_H +#define ADA_IDNA_H + +/* begin file include/ada/idna/unicode_transcoding.h */ +#ifndef ADA_IDNA_UNICODE_TRANSCODING_H +#define ADA_IDNA_UNICODE_TRANSCODING_H + +#include +#include + +namespace ada::idna { + +size_t utf8_to_utf32(const char* buf, size_t len, char32_t* utf32_output); + +size_t utf8_length_from_utf32(const char32_t* buf, size_t len); + +size_t utf32_length_from_utf8(const char* buf, size_t len); + +size_t utf32_to_utf8(const char32_t* buf, size_t len, char* utf8_output); + +} // namespace ada::idna + +#endif // ADA_IDNA_UNICODE_TRANSCODING_H +/* end file include/ada/idna/unicode_transcoding.h */ +/* begin file include/ada/idna/mapping.h */ +#ifndef ADA_IDNA_MAPPING_H +#define ADA_IDNA_MAPPING_H + +#include +#include + +namespace ada::idna { + +// If the input is ascii, then the mapping is just -> lower case. +void ascii_map(char* input, size_t length); +// check whether an ascii string needs mapping +bool ascii_has_upper_case(char* input, size_t length); +// Map the characters according to IDNA, returning the empty string on error. +std::u32string map(std::u32string_view input); + +} // namespace ada::idna + +#endif +/* end file include/ada/idna/mapping.h */ +/* begin file include/ada/idna/normalization.h */ +#ifndef ADA_IDNA_NORMALIZATION_H +#define ADA_IDNA_NORMALIZATION_H + +#include +#include + +namespace ada::idna { + +// Normalize the characters according to IDNA (Unicode Normalization Form C). +void normalize(std::u32string& input); + +} // namespace ada::idna +#endif +/* end file include/ada/idna/normalization.h */ +/* begin file include/ada/idna/punycode.h */ +#ifndef ADA_IDNA_PUNYCODE_H +#define ADA_IDNA_PUNYCODE_H + +#include +#include + +namespace ada::idna { + +bool punycode_to_utf32(std::string_view input, std::u32string& out); +bool verify_punycode(std::string_view input); +bool utf32_to_punycode(std::u32string_view input, std::string& out); + +} // namespace ada::idna + +#endif // ADA_IDNA_PUNYCODE_H +/* end file include/ada/idna/punycode.h */ +/* begin file include/ada/idna/validity.h */ +#ifndef ADA_IDNA_VALIDITY_H +#define ADA_IDNA_VALIDITY_H + +#include +#include + +namespace ada::idna { + +/** + * @see https://www.unicode.org/reports/tr46/#Validity_Criteria + */ +bool is_label_valid(std::u32string_view label); + +} // namespace ada::idna + +#endif // ADA_IDNA_VALIDITY_H +/* end file include/ada/idna/validity.h */ +/* begin file include/ada/idna/to_ascii.h */ +#ifndef ADA_IDNA_TO_ASCII_H +#define ADA_IDNA_TO_ASCII_H + +#include +#include + +namespace ada::idna { + +// Converts a domain (e.g., www.google.com) possibly containing international +// characters to an ascii domain (with punycode). It will not do percent +// decoding: percent decoding should be done prior to calling this function. We +// do not remove tabs and spaces, they should have been removed prior to calling +// this function. We also do not trim control characters. We also assume that +// the input is not empty. We return "" on error. +// +// +// This function may accept or even produce invalid domains. +std::string to_ascii(std::string_view ut8_string); + +// Returns true if the string contains a forbidden code point according to the +// WHATGL URL specification: +// https://url.spec.whatwg.org/#forbidden-domain-code-point +bool contains_forbidden_domain_code_point(std::string_view ascii_string); + +bool begins_with(std::u32string_view view, std::u32string_view prefix); +bool begins_with(std::string_view view, std::string_view prefix); + +bool constexpr is_ascii(std::u32string_view view); +bool constexpr is_ascii(std::string_view view); + +} // namespace ada::idna + +#endif // ADA_IDNA_TO_ASCII_H +/* end file include/ada/idna/to_ascii.h */ +/* begin file include/ada/idna/to_unicode.h */ + +#ifndef ADA_IDNA_TO_UNICODE_H +#define ADA_IDNA_TO_UNICODE_H + +#include + +namespace ada::idna { + +std::string to_unicode(std::string_view input); + +} // namespace ada::idna + +#endif // ADA_IDNA_TO_UNICODE_H +/* end file include/ada/idna/to_unicode.h */ + +#endif +/* end file include/idna.h */ +/* end file include/ada/ada_idna.h */ +/* begin file include/ada/character_sets-inl.h */ +/** + * @file character_sets-inl.h + * @brief Definitions of the character sets used by unicode functions. + * @author Node.js + * @see https://github.com/nodejs/node/blob/main/src/node_url_tables.cc + */ +#ifndef ADA_CHARACTER_SETS_INL_H +#define ADA_CHARACTER_SETS_INL_H + +/* begin file include/ada/character_sets.h */ +/** + * @file character_sets.h + * @brief Declaration of the character sets used by unicode functions. + * @author Node.js + * @see https://github.com/nodejs/node/blob/main/src/node_url_tables.cc + */ +#ifndef ADA_CHARACTER_SETS_H +#define ADA_CHARACTER_SETS_H + +/* begin file include/ada/common_defs.h */ +/** + * @file common_defs.h + * @brief Common definitions for cross-platform compiler support. + */ +#ifndef ADA_COMMON_DEFS_H +#define ADA_COMMON_DEFS_H + +#ifdef _MSC_VER +#define ADA_VISUAL_STUDIO 1 +/** + * We want to differentiate carefully between + * clang under visual studio and regular visual + * studio. + */ +#ifdef __clang__ +// clang under visual studio +#define ADA_CLANG_VISUAL_STUDIO 1 +#else +// just regular visual studio (best guess) +#define ADA_REGULAR_VISUAL_STUDIO 1 +#endif // __clang__ +#endif // _MSC_VER + +#if defined(__GNUC__) +// Marks a block with a name so that MCA analysis can see it. +#define ADA_BEGIN_DEBUG_BLOCK(name) __asm volatile("# LLVM-MCA-BEGIN " #name); +#define ADA_END_DEBUG_BLOCK(name) __asm volatile("# LLVM-MCA-END " #name); +#define ADA_DEBUG_BLOCK(name, block) \ + BEGIN_DEBUG_BLOCK(name); \ + block; \ + END_DEBUG_BLOCK(name); +#else +#define ADA_BEGIN_DEBUG_BLOCK(name) +#define ADA_END_DEBUG_BLOCK(name) +#define ADA_DEBUG_BLOCK(name, block) +#endif + +// Align to N-byte boundary +#define ADA_ROUNDUP_N(a, n) (((a) + ((n)-1)) & ~((n)-1)) +#define ADA_ROUNDDOWN_N(a, n) ((a) & ~((n)-1)) + +#define ADA_ISALIGNED_N(ptr, n) (((uintptr_t)(ptr) & ((n)-1)) == 0) + +#if defined(ADA_REGULAR_VISUAL_STUDIO) + +#define ada_really_inline __forceinline +#define ada_never_inline __declspec(noinline) + +#define ada_unused +#define ada_warn_unused + +#ifndef ada_likely +#define ada_likely(x) x +#endif +#ifndef ada_unlikely +#define ada_unlikely(x) x +#endif + +#define ADA_PUSH_DISABLE_WARNINGS __pragma(warning(push)) +#define ADA_PUSH_DISABLE_ALL_WARNINGS __pragma(warning(push, 0)) +#define ADA_DISABLE_VS_WARNING(WARNING_NUMBER) \ + __pragma(warning(disable : WARNING_NUMBER)) +// Get rid of Intellisense-only warnings (Code Analysis) +// Though __has_include is C++17, it is supported in Visual Studio 2017 or +// better (_MSC_VER>=1910). +#ifdef __has_include +#if __has_include() +#include +#define ADA_DISABLE_UNDESIRED_WARNINGS \ + ADA_DISABLE_VS_WARNING(ALL_CPPCORECHECK_WARNINGS) +#endif +#endif + +#ifndef ADA_DISABLE_UNDESIRED_WARNINGS +#define ADA_DISABLE_UNDESIRED_WARNINGS +#endif + +#define ADA_DISABLE_DEPRECATED_WARNING ADA_DISABLE_VS_WARNING(4996) +#define ADA_DISABLE_STRICT_OVERFLOW_WARNING +#define ADA_POP_DISABLE_WARNINGS __pragma(warning(pop)) + +#else // ADA_REGULAR_VISUAL_STUDIO + +#define ada_really_inline inline __attribute__((always_inline)) +#define ada_never_inline inline __attribute__((noinline)) + +#define ada_unused __attribute__((unused)) +#define ada_warn_unused __attribute__((warn_unused_result)) + +#ifndef ada_likely +#define ada_likely(x) __builtin_expect(!!(x), 1) +#endif +#ifndef ada_unlikely +#define ada_unlikely(x) __builtin_expect(!!(x), 0) +#endif + +#define ADA_PUSH_DISABLE_WARNINGS _Pragma("GCC diagnostic push") +// gcc doesn't seem to disable all warnings with all and extra, add warnings +// here as necessary +#define ADA_PUSH_DISABLE_ALL_WARNINGS \ + ADA_PUSH_DISABLE_WARNINGS \ + ADA_DISABLE_GCC_WARNING("-Weffc++") \ + ADA_DISABLE_GCC_WARNING("-Wall") \ + ADA_DISABLE_GCC_WARNING("-Wconversion") \ + ADA_DISABLE_GCC_WARNING("-Wextra") \ + ADA_DISABLE_GCC_WARNING("-Wattributes") \ + ADA_DISABLE_GCC_WARNING("-Wimplicit-fallthrough") \ + ADA_DISABLE_GCC_WARNING("-Wnon-virtual-dtor") \ + ADA_DISABLE_GCC_WARNING("-Wreturn-type") \ + ADA_DISABLE_GCC_WARNING("-Wshadow") \ + ADA_DISABLE_GCC_WARNING("-Wunused-parameter") \ + ADA_DISABLE_GCC_WARNING("-Wunused-variable") +#define ADA_PRAGMA(P) _Pragma(#P) +#define ADA_DISABLE_GCC_WARNING(WARNING) \ + ADA_PRAGMA(GCC diagnostic ignored WARNING) +#if defined(ADA_CLANG_VISUAL_STUDIO) +#define ADA_DISABLE_UNDESIRED_WARNINGS \ + ADA_DISABLE_GCC_WARNING("-Wmicrosoft-include") +#else +#define ADA_DISABLE_UNDESIRED_WARNINGS +#endif +#define ADA_DISABLE_DEPRECATED_WARNING \ + ADA_DISABLE_GCC_WARNING("-Wdeprecated-declarations") +#define ADA_DISABLE_STRICT_OVERFLOW_WARNING \ + ADA_DISABLE_GCC_WARNING("-Wstrict-overflow") +#define ADA_POP_DISABLE_WARNINGS _Pragma("GCC diagnostic pop") + +#endif // MSC_VER + +#if defined(ADA_VISUAL_STUDIO) +/** + * It does not matter here whether you are using + * the regular visual studio or clang under visual + * studio. + */ +#if ADA_USING_LIBRARY +#define ADA_DLLIMPORTEXPORT __declspec(dllimport) +#else +#define ADA_DLLIMPORTEXPORT __declspec(dllexport) +#endif +#else +#define ADA_DLLIMPORTEXPORT +#endif + +/// If EXPR is an error, returns it. +#define ADA_TRY(EXPR) \ + { \ + auto _err = (EXPR); \ + if (_err) { \ + return _err; \ + } \ + } + +// __has_cpp_attribute is part of C++20 +#if !defined(__has_cpp_attribute) +#define __has_cpp_attribute(x) 0 +#endif + +#if __has_cpp_attribute(gnu::noinline) +#define ADA_ATTRIBUTE_NOINLINE [[gnu::noinline]] +#else +#define ADA_ATTRIBUTE_NOINLINE +#endif + +namespace ada { +[[noreturn]] inline void unreachable() { +#ifdef __GNUC__ + __builtin_unreachable(); +#elif defined(_MSC_VER) + __assume(false); +#else +#endif +} +} // namespace ada + +#if defined(__GNUC__) && !defined(__clang__) +#if __GNUC__ <= 8 +#define ADA_OLD_GCC 1 +#endif // __GNUC__ <= 8 +#endif // defined(__GNUC__) && !defined(__clang__) + +#if ADA_OLD_GCC +#define ada_constexpr +#else +#define ada_constexpr constexpr +#endif + +#if defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) +#define ADA_IS_BIG_ENDIAN (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) +#elif defined(_WIN32) +#define ADA_IS_BIG_ENDIAN 0 +#else +#if defined(__APPLE__) || \ + defined(__FreeBSD__) // defined __BYTE_ORDER__ && defined + // __ORDER_BIG_ENDIAN__ +#include +#elif defined(sun) || \ + defined(__sun) // defined(__APPLE__) || defined(__FreeBSD__) +#include +#else // defined(__APPLE__) || defined(__FreeBSD__) + +#ifdef __has_include +#if __has_include() +#include +#endif //__has_include() +#endif //__has_include + +#endif // defined(__APPLE__) || defined(__FreeBSD__) + +#ifndef !defined(__BYTE_ORDER__) || !defined(__ORDER_LITTLE_ENDIAN__) +#define ADA_IS_BIG_ENDIAN 0 +#endif + +#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ +#define ADA_IS_BIG_ENDIAN 0 +#else // __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ +#define ADA_IS_BIG_ENDIAN 1 +#endif // __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ + +#endif // defined __BYTE_ORDER__ && defined __ORDER_BIG_ENDIAN__ + +// Unless the programmer has already set ADA_DEVELOPMENT_CHECKS, +// we want to set it under debug builds. We detect a debug build +// under Visual Studio when the _DEBUG macro is set. Under the other +// compilers, we use the fact that they define __OPTIMIZE__ whenever +// they allow optimizations. +// It is possible that this could miss some cases where ADA_DEVELOPMENT_CHECKS +// is helpful, but the programmer can set the macro ADA_DEVELOPMENT_CHECKS. +// It could also wrongly set ADA_DEVELOPMENT_CHECKS (e.g., if the programmer +// sets _DEBUG in a release build under Visual Studio, or if some compiler fails +// to set the __OPTIMIZE__ macro). +#if !defined(ADA_DEVELOPMENT_CHECKS) && !defined(NDEBUG) +#ifdef _MSC_VER +// Visual Studio seems to set _DEBUG for debug builds. +#ifdef _DEBUG +#define ADA_DEVELOPMENT_CHECKS 1 +#endif // _DEBUG +#else // _MSC_VER +// All other compilers appear to set __OPTIMIZE__ to a positive integer +// when the compiler is optimizing. +#ifndef __OPTIMIZE__ +#define ADA_DEVELOPMENT_CHECKS 1 +#endif // __OPTIMIZE__ +#endif // _MSC_VER +#endif // ADA_DEVELOPMENT_CHECKS + +#define ADA_STR(x) #x + +#if ADA_DEVELOPMENT_CHECKS +#define ADA_REQUIRE(EXPR) \ + { \ + if (!(EXPR) { abort(); }) } + +#define ADA_FAIL(MESSAGE) \ + do { \ + std::cerr << "FAIL: " << (MESSAGE) << std::endl; \ + abort(); \ + } while (0); +#define ADA_ASSERT_EQUAL(LHS, RHS, MESSAGE) \ + do { \ + if (LHS != RHS) { \ + std::cerr << "Mismatch: '" << LHS << "' - '" << RHS << "'" << std::endl; \ + ADA_FAIL(MESSAGE); \ + } \ + } while (0); +#define ADA_ASSERT_TRUE(COND) \ + do { \ + if (!(COND)) { \ + std::cerr << "Assert at line " << __LINE__ << " of file " << __FILE__ \ + << std::endl; \ + ADA_FAIL(ADA_STR(COND)); \ + } \ + } while (0); +#else +#define ADA_FAIL(MESSAGE) +#define ADA_ASSERT_EQUAL(LHS, RHS, MESSAGE) +#define ADA_ASSERT_TRUE(COND) +#endif + +#ifdef ADA_VISUAL_STUDIO +#define ADA_ASSUME(COND) __assume(COND) +#else +#define ADA_ASSUME(COND) \ + do { \ + if (!(COND)) __builtin_unreachable(); \ + } while (0) +#endif + +#if defined(__SSE2__) || defined(__x86_64__) || defined(__x86_64) || \ + (defined(_M_AMD64) || defined(_M_X64) || \ + (defined(_M_IX86_FP) && _M_IX86_FP == 2)) +#define ADA_SSE2 1 +#endif + +#if defined(__aarch64__) || defined(_M_ARM64) +#define ADA_NEON 1 +#endif + +#endif // ADA_COMMON_DEFS_H +/* end file include/ada/common_defs.h */ +#include + +/** + * @namespace ada::character_sets + * @brief Includes the definitions for unicode character sets. + */ +namespace ada::character_sets { +ada_really_inline bool bit_at(const uint8_t a[], uint8_t i); +} // namespace ada::character_sets + +#endif // ADA_CHARACTER_SETS_H +/* end file include/ada/character_sets.h */ + +namespace ada::character_sets { + +constexpr char hex[1024] = + "%00\0%01\0%02\0%03\0%04\0%05\0%06\0%07\0" + "%08\0%09\0%0A\0%0B\0%0C\0%0D\0%0E\0%0F\0" + "%10\0%11\0%12\0%13\0%14\0%15\0%16\0%17\0" + "%18\0%19\0%1A\0%1B\0%1C\0%1D\0%1E\0%1F\0" + "%20\0%21\0%22\0%23\0%24\0%25\0%26\0%27\0" + "%28\0%29\0%2A\0%2B\0%2C\0%2D\0%2E\0%2F\0" + "%30\0%31\0%32\0%33\0%34\0%35\0%36\0%37\0" + "%38\0%39\0%3A\0%3B\0%3C\0%3D\0%3E\0%3F\0" + "%40\0%41\0%42\0%43\0%44\0%45\0%46\0%47\0" + "%48\0%49\0%4A\0%4B\0%4C\0%4D\0%4E\0%4F\0" + "%50\0%51\0%52\0%53\0%54\0%55\0%56\0%57\0" + "%58\0%59\0%5A\0%5B\0%5C\0%5D\0%5E\0%5F\0" + "%60\0%61\0%62\0%63\0%64\0%65\0%66\0%67\0" + "%68\0%69\0%6A\0%6B\0%6C\0%6D\0%6E\0%6F\0" + "%70\0%71\0%72\0%73\0%74\0%75\0%76\0%77\0" + "%78\0%79\0%7A\0%7B\0%7C\0%7D\0%7E\0%7F\0" + "%80\0%81\0%82\0%83\0%84\0%85\0%86\0%87\0" + "%88\0%89\0%8A\0%8B\0%8C\0%8D\0%8E\0%8F\0" + "%90\0%91\0%92\0%93\0%94\0%95\0%96\0%97\0" + "%98\0%99\0%9A\0%9B\0%9C\0%9D\0%9E\0%9F\0" + "%A0\0%A1\0%A2\0%A3\0%A4\0%A5\0%A6\0%A7\0" + "%A8\0%A9\0%AA\0%AB\0%AC\0%AD\0%AE\0%AF\0" + "%B0\0%B1\0%B2\0%B3\0%B4\0%B5\0%B6\0%B7\0" + "%B8\0%B9\0%BA\0%BB\0%BC\0%BD\0%BE\0%BF\0" + "%C0\0%C1\0%C2\0%C3\0%C4\0%C5\0%C6\0%C7\0" + "%C8\0%C9\0%CA\0%CB\0%CC\0%CD\0%CE\0%CF\0" + "%D0\0%D1\0%D2\0%D3\0%D4\0%D5\0%D6\0%D7\0" + "%D8\0%D9\0%DA\0%DB\0%DC\0%DD\0%DE\0%DF\0" + "%E0\0%E1\0%E2\0%E3\0%E4\0%E5\0%E6\0%E7\0" + "%E8\0%E9\0%EA\0%EB\0%EC\0%ED\0%EE\0%EF\0" + "%F0\0%F1\0%F2\0%F3\0%F4\0%F5\0%F6\0%F7\0" + "%F8\0%F9\0%FA\0%FB\0%FC\0%FD\0%FE\0%FF"; + +constexpr uint8_t C0_CONTROL_PERCENT_ENCODE[32] = { + // 00 01 02 03 04 05 06 07 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 08 09 0A 0B 0C 0D 0E 0F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 10 11 12 13 14 15 16 17 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 18 19 1A 1B 1C 1D 1E 1F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 20 21 22 23 24 25 26 27 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 28 29 2A 2B 2C 2D 2E 2F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 30 31 32 33 34 35 36 37 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 38 39 3A 3B 3C 3D 3E 3F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 40 41 42 43 44 45 46 47 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 48 49 4A 4B 4C 4D 4E 4F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 50 51 52 53 54 55 56 57 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 58 59 5A 5B 5C 5D 5E 5F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 60 61 62 63 64 65 66 67 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 68 69 6A 6B 6C 6D 6E 6F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 70 71 72 73 74 75 76 77 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 78 79 7A 7B 7C 7D 7E 7F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x80, + // 80 81 82 83 84 85 86 87 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 88 89 8A 8B 8C 8D 8E 8F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 90 91 92 93 94 95 96 97 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 98 99 9A 9B 9C 9D 9E 9F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // A0 A1 A2 A3 A4 A5 A6 A7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // A8 A9 AA AB AC AD AE AF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // B0 B1 B2 B3 B4 B5 B6 B7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // B8 B9 BA BB BC BD BE BF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // C0 C1 C2 C3 C4 C5 C6 C7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // C8 C9 CA CB CC CD CE CF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // D0 D1 D2 D3 D4 D5 D6 D7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // D8 D9 DA DB DC DD DE DF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // E0 E1 E2 E3 E4 E5 E6 E7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // E8 E9 EA EB EC ED EE EF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // F0 F1 F2 F3 F4 F5 F6 F7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // F8 F9 FA FB FC FD FE FF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80}; + +constexpr uint8_t SPECIAL_QUERY_PERCENT_ENCODE[32] = { + // 00 01 02 03 04 05 06 07 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 08 09 0A 0B 0C 0D 0E 0F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 10 11 12 13 14 15 16 17 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 18 19 1A 1B 1C 1D 1E 1F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 20 21 22 23 24 25 26 27 + 0x01 | 0x00 | 0x04 | 0x08 | 0x00 | 0x00 | 0x00 | 0x80, + // 28 29 2A 2B 2C 2D 2E 2F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 30 31 32 33 34 35 36 37 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 38 39 3A 3B 3C 3D 3E 3F + 0x00 | 0x00 | 0x00 | 0x00 | 0x10 | 0x00 | 0x40 | 0x00, + // 40 41 42 43 44 45 46 47 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 48 49 4A 4B 4C 4D 4E 4F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 50 51 52 53 54 55 56 57 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 58 59 5A 5B 5C 5D 5E 5F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 60 61 62 63 64 65 66 67 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 68 69 6A 6B 6C 6D 6E 6F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 70 71 72 73 74 75 76 77 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 78 79 7A 7B 7C 7D 7E 7F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x80, + // 80 81 82 83 84 85 86 87 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 88 89 8A 8B 8C 8D 8E 8F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 90 91 92 93 94 95 96 97 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 98 99 9A 9B 9C 9D 9E 9F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // A0 A1 A2 A3 A4 A5 A6 A7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // A8 A9 AA AB AC AD AE AF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // B0 B1 B2 B3 B4 B5 B6 B7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // B8 B9 BA BB BC BD BE BF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // C0 C1 C2 C3 C4 C5 C6 C7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // C8 C9 CA CB CC CD CE CF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // D0 D1 D2 D3 D4 D5 D6 D7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // D8 D9 DA DB DC DD DE DF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // E0 E1 E2 E3 E4 E5 E6 E7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // E8 E9 EA EB EC ED EE EF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // F0 F1 F2 F3 F4 F5 F6 F7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // F8 F9 FA FB FC FD FE FF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80}; + +constexpr uint8_t QUERY_PERCENT_ENCODE[32] = { + // 00 01 02 03 04 05 06 07 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 08 09 0A 0B 0C 0D 0E 0F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 10 11 12 13 14 15 16 17 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 18 19 1A 1B 1C 1D 1E 1F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 20 21 22 23 24 25 26 27 + 0x01 | 0x00 | 0x04 | 0x08 | 0x00 | 0x00 | 0x00 | 0x00, + // 28 29 2A 2B 2C 2D 2E 2F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 30 31 32 33 34 35 36 37 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 38 39 3A 3B 3C 3D 3E 3F + 0x00 | 0x00 | 0x00 | 0x00 | 0x10 | 0x00 | 0x40 | 0x00, + // 40 41 42 43 44 45 46 47 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 48 49 4A 4B 4C 4D 4E 4F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 50 51 52 53 54 55 56 57 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 58 59 5A 5B 5C 5D 5E 5F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 60 61 62 63 64 65 66 67 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 68 69 6A 6B 6C 6D 6E 6F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 70 71 72 73 74 75 76 77 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 78 79 7A 7B 7C 7D 7E 7F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x80, + // 80 81 82 83 84 85 86 87 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 88 89 8A 8B 8C 8D 8E 8F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 90 91 92 93 94 95 96 97 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 98 99 9A 9B 9C 9D 9E 9F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // A0 A1 A2 A3 A4 A5 A6 A7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // A8 A9 AA AB AC AD AE AF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // B0 B1 B2 B3 B4 B5 B6 B7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // B8 B9 BA BB BC BD BE BF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // C0 C1 C2 C3 C4 C5 C6 C7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // C8 C9 CA CB CC CD CE CF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // D0 D1 D2 D3 D4 D5 D6 D7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // D8 D9 DA DB DC DD DE DF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // E0 E1 E2 E3 E4 E5 E6 E7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // E8 E9 EA EB EC ED EE EF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // F0 F1 F2 F3 F4 F5 F6 F7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // F8 F9 FA FB FC FD FE FF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80}; + +constexpr uint8_t FRAGMENT_PERCENT_ENCODE[32] = { + // 00 01 02 03 04 05 06 07 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 08 09 0A 0B 0C 0D 0E 0F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 10 11 12 13 14 15 16 17 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 18 19 1A 1B 1C 1D 1E 1F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 20 21 22 23 24 25 26 27 + 0x01 | 0x00 | 0x04 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 28 29 2A 2B 2C 2D 2E 2F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 30 31 32 33 34 35 36 37 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 38 39 3A 3B 3C 3D 3E 3F + 0x00 | 0x00 | 0x00 | 0x00 | 0x10 | 0x00 | 0x40 | 0x00, + // 40 41 42 43 44 45 46 47 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 48 49 4A 4B 4C 4D 4E 4F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 50 51 52 53 54 55 56 57 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 58 59 5A 5B 5C 5D 5E 5F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 60 61 62 63 64 65 66 67 + 0x01 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 68 69 6A 6B 6C 6D 6E 6F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 70 71 72 73 74 75 76 77 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 78 79 7A 7B 7C 7D 7E 7F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x80, + // 80 81 82 83 84 85 86 87 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 88 89 8A 8B 8C 8D 8E 8F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 90 91 92 93 94 95 96 97 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 98 99 9A 9B 9C 9D 9E 9F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // A0 A1 A2 A3 A4 A5 A6 A7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // A8 A9 AA AB AC AD AE AF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // B0 B1 B2 B3 B4 B5 B6 B7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // B8 B9 BA BB BC BD BE BF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // C0 C1 C2 C3 C4 C5 C6 C7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // C8 C9 CA CB CC CD CE CF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // D0 D1 D2 D3 D4 D5 D6 D7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // D8 D9 DA DB DC DD DE DF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // E0 E1 E2 E3 E4 E5 E6 E7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // E8 E9 EA EB EC ED EE EF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // F0 F1 F2 F3 F4 F5 F6 F7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // F8 F9 FA FB FC FD FE FF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80}; + +constexpr uint8_t USERINFO_PERCENT_ENCODE[32] = { + // 00 01 02 03 04 05 06 07 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 08 09 0A 0B 0C 0D 0E 0F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 10 11 12 13 14 15 16 17 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 18 19 1A 1B 1C 1D 1E 1F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 20 21 22 23 24 25 26 27 + 0x01 | 0x00 | 0x04 | 0x08 | 0x00 | 0x00 | 0x00 | 0x00, + // 28 29 2A 2B 2C 2D 2E 2F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x80, + // 30 31 32 33 34 35 36 37 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 38 39 3A 3B 3C 3D 3E 3F + 0x00 | 0x00 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 40 41 42 43 44 45 46 47 + 0x01 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 48 49 4A 4B 4C 4D 4E 4F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 50 51 52 53 54 55 56 57 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 58 59 5A 5B 5C 5D 5E 5F + 0x00 | 0x00 | 0x00 | 0x08 | 0x10 | 0x20 | 0x40 | 0x00, + // 60 61 62 63 64 65 66 67 + 0x01 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 68 69 6A 6B 6C 6D 6E 6F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 70 71 72 73 74 75 76 77 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 78 79 7A 7B 7C 7D 7E 7F + 0x00 | 0x00 | 0x00 | 0x08 | 0x10 | 0x20 | 0x00 | 0x80, + // 80 81 82 83 84 85 86 87 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 88 89 8A 8B 8C 8D 8E 8F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 90 91 92 93 94 95 96 97 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 98 99 9A 9B 9C 9D 9E 9F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // A0 A1 A2 A3 A4 A5 A6 A7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // A8 A9 AA AB AC AD AE AF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // B0 B1 B2 B3 B4 B5 B6 B7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // B8 B9 BA BB BC BD BE BF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // C0 C1 C2 C3 C4 C5 C6 C7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // C8 C9 CA CB CC CD CE CF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // D0 D1 D2 D3 D4 D5 D6 D7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // D8 D9 DA DB DC DD DE DF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // E0 E1 E2 E3 E4 E5 E6 E7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // E8 E9 EA EB EC ED EE EF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // F0 F1 F2 F3 F4 F5 F6 F7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // F8 F9 FA FB FC FD FE FF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80}; + +constexpr uint8_t PATH_PERCENT_ENCODE[32] = { + // 00 01 02 03 04 05 06 07 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 08 09 0A 0B 0C 0D 0E 0F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 10 11 12 13 14 15 16 17 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 18 19 1A 1B 1C 1D 1E 1F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 20 21 22 23 24 25 26 27 + 0x01 | 0x00 | 0x04 | 0x08 | 0x00 | 0x00 | 0x00 | 0x00, + // 28 29 2A 2B 2C 2D 2E 2F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 30 31 32 33 34 35 36 37 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 38 39 3A 3B 3C 3D 3E 3F + 0x00 | 0x00 | 0x00 | 0x00 | 0x10 | 0x00 | 0x40 | 0x80, + // 40 41 42 43 44 45 46 47 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 48 49 4A 4B 4C 4D 4E 4F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 50 51 52 53 54 55 56 57 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 58 59 5A 5B 5C 5D 5E 5F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 60 61 62 63 64 65 66 67 + 0x01 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 68 69 6A 6B 6C 6D 6E 6F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 70 71 72 73 74 75 76 77 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 78 79 7A 7B 7C 7D 7E 7F + 0x00 | 0x00 | 0x00 | 0x08 | 0x00 | 0x20 | 0x00 | 0x80, + // 80 81 82 83 84 85 86 87 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 88 89 8A 8B 8C 8D 8E 8F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 90 91 92 93 94 95 96 97 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 98 99 9A 9B 9C 9D 9E 9F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // A0 A1 A2 A3 A4 A5 A6 A7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // A8 A9 AA AB AC AD AE AF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // B0 B1 B2 B3 B4 B5 B6 B7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // B8 B9 BA BB BC BD BE BF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // C0 C1 C2 C3 C4 C5 C6 C7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // C8 C9 CA CB CC CD CE CF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // D0 D1 D2 D3 D4 D5 D6 D7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // D8 D9 DA DB DC DD DE DF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // E0 E1 E2 E3 E4 E5 E6 E7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // E8 E9 EA EB EC ED EE EF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // F0 F1 F2 F3 F4 F5 F6 F7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // F8 F9 FA FB FC FD FE FF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80}; + +constexpr uint8_t WWW_FORM_URLENCODED_PERCENT_ENCODE[32] = { + // 00 01 02 03 04 05 06 07 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 08 09 0A 0B 0C 0D 0E 0F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 10 11 12 13 14 15 16 17 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 18 19 1A 1B 1C 1D 1E 1F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 20 21 22 23 24 25 26 27 + 0x00 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 28 29 2A 2B 2C 2D 2E 2F + 0x01 | 0x02 | 0x00 | 0x08 | 0x10 | 0x00 | 0x00 | 0x00, + // 30 31 32 33 34 35 36 37 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 38 39 3A 3B 3C 3D 3E 3F + 0x00 | 0x00 | 0x00 | 0x00 | 0x10 | 0x00 | 0x40 | 0x80, + // 40 41 42 43 44 45 46 47 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 48 49 4A 4B 4C 4D 4E 4F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 50 51 52 53 54 55 56 57 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 58 59 5A 5B 5C 5D 5E 5F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 60 61 62 63 64 65 66 67 + 0x01 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 68 69 6A 6B 6C 6D 6E 6F + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 70 71 72 73 74 75 76 77 + 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00 | 0x00, + // 78 79 7A 7B 7C 7D 7E 7F + 0x00 | 0x00 | 0x00 | 0x08 | 0x00 | 0x20 | 0x40 | 0x80, + // 80 81 82 83 84 85 86 87 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 88 89 8A 8B 8C 8D 8E 8F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 90 91 92 93 94 95 96 97 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // 98 99 9A 9B 9C 9D 9E 9F + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // A0 A1 A2 A3 A4 A5 A6 A7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // A8 A9 AA AB AC AD AE AF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // B0 B1 B2 B3 B4 B5 B6 B7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // B8 B9 BA BB BC BD BE BF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // C0 C1 C2 C3 C4 C5 C6 C7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // C8 C9 CA CB CC CD CE CF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // D0 D1 D2 D3 D4 D5 D6 D7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // D8 D9 DA DB DC DD DE DF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // E0 E1 E2 E3 E4 E5 E6 E7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // E8 E9 EA EB EC ED EE EF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // F0 F1 F2 F3 F4 F5 F6 F7 + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80, + // F8 F9 FA FB FC FD FE FF + 0x01 | 0x02 | 0x04 | 0x08 | 0x10 | 0x20 | 0x40 | 0x80}; + +ada_really_inline bool bit_at(const uint8_t a[], const uint8_t i) { + return !!(a[i >> 3] & (1 << (i & 7))); +} + +} // namespace ada::character_sets + +#endif // ADA_CHARACTER_SETS_INL_H +/* end file include/ada/character_sets-inl.h */ +/* begin file include/ada/checkers-inl.h */ +/** + * @file checkers-inl.h + * @brief Definitions for URL specific checkers used within Ada. + */ +#ifndef ADA_CHECKERS_INL_H +#define ADA_CHECKERS_INL_H + + +#include +#include +#include + +namespace ada::checkers { + +inline bool has_hex_prefix_unsafe(std::string_view input) { + // This is actually efficient code, see has_hex_prefix for the assembly. + uint32_t value_one = 1; + bool is_little_endian = (reinterpret_cast(&value_one)[0] == 1); + uint16_t word0x{}; + std::memcpy(&word0x, "0x", 2); // we would use bit_cast in C++20 and the + // function could be constexpr. + uint16_t two_first_bytes{}; + std::memcpy(&two_first_bytes, input.data(), 2); + if (is_little_endian) { + two_first_bytes |= 0x2000; + } else { + two_first_bytes |= 0x020; + } + return two_first_bytes == word0x; +} + +inline bool has_hex_prefix(std::string_view input) { + return input.size() >= 2 && has_hex_prefix_unsafe(input); +} + +constexpr bool is_digit(char x) noexcept { return (x >= '0') & (x <= '9'); } + +constexpr char to_lower(char x) noexcept { return (x | 0x20); } + +constexpr bool is_alpha(char x) noexcept { + return (to_lower(x) >= 'a') && (to_lower(x) <= 'z'); +} + +inline constexpr bool is_windows_drive_letter(std::string_view input) noexcept { + return input.size() >= 2 && + (is_alpha(input[0]) && ((input[1] == ':') || (input[1] == '|'))) && + ((input.size() == 2) || (input[2] == '/' || input[2] == '\\' || + input[2] == '?' || input[2] == '#')); +} + +inline constexpr bool is_normalized_windows_drive_letter( + std::string_view input) noexcept { + return input.size() >= 2 && (is_alpha(input[0]) && (input[1] == ':')); +} + +ada_really_inline bool begins_with(std::string_view view, + std::string_view prefix) { + // in C++20, you have view.begins_with(prefix) + // std::equal is constexpr in C++20 + return view.size() >= prefix.size() && + std::equal(prefix.begin(), prefix.end(), view.begin()); +} + +} // namespace ada::checkers + +#endif // ADA_CHECKERS_H +/* end file include/ada/checkers-inl.h */ +/* begin file include/ada/log.h */ +/** + * @file log.h + * @brief Includes the definitions for logging. + * @private Excluded from docs through the doxygen file. + */ +#ifndef ADA_LOG_H +#define ADA_LOG_H + +#include +// To enable logging, set ADA_LOGGING to 1: +#ifndef ADA_LOGGING +#define ADA_LOGGING 0 +#endif + +namespace ada { + +/** + * Private function used for logging messages. + * @private + */ +template +ada_really_inline void inner_log([[maybe_unused]] T t) { +#if ADA_LOGGING + std::cout << t << std::endl; +#endif +} + +/** + * Private function used for logging messages. + * @private + */ +template +ada_really_inline void inner_log([[maybe_unused]] T t, + [[maybe_unused]] Args... args) { +#if ADA_LOGGING + std::cout << t; + inner_log(args...); +#endif +} + +/** + * Log a message. + * @private + */ +template +ada_really_inline void log([[maybe_unused]] T t, + [[maybe_unused]] Args... args) { +#if ADA_LOGGING + std::cout << "ADA_LOG: " << t; + inner_log(args...); +#endif +} + +/** + * Log a message. + * @private + */ +template +ada_really_inline void log([[maybe_unused]] T t) { +#if ADA_LOGGING + std::cout << "ADA_LOG: " << t << std::endl; +#endif +} +} // namespace ada + +#if ADA_LOGGING + +#ifndef ada_log +#define ada_log(...) \ + do { \ + ada::log(__VA_ARGS__); \ + } while (0) +#endif // ada_log +#else +#define ada_log(...) +#endif // ADA_LOGGING + +#endif // ADA_LOG_H +/* end file include/ada/log.h */ +/* begin file include/ada/encoding_type.h */ +/** + * @file encoding_type.h + * @brief Definition for supported encoding types. + */ +#ifndef ADA_ENCODING_TYPE_H +#define ADA_ENCODING_TYPE_H + +#include + +namespace ada { + +/** + * This specification defines three encodings with the same names as encoding + * schemes defined in the Unicode standard: UTF-8, UTF-16LE, and UTF-16BE. + * + * @see https://encoding.spec.whatwg.org/#encodings + */ +enum class encoding_type { + UTF8, + UTF_16LE, + UTF_16BE, +}; + +/** + * Convert a encoding_type to string. + */ +ada_warn_unused std::string to_string(encoding_type type); + +} // namespace ada + +#endif // ADA_ENCODING_TYPE_H +/* end file include/ada/encoding_type.h */ +/* begin file include/ada/helpers.h */ +/** + * @file helpers.h + * @brief Definitions for helper functions used within Ada. + */ +#ifndef ADA_HELPERS_H +#define ADA_HELPERS_H + +/* begin file include/ada/state.h */ +/** + * @file state.h + * @brief Definitions for the states of the URL state machine. + */ +#ifndef ADA_STATE_H +#define ADA_STATE_H + + +#include + +namespace ada { + +/** + * @see https://url.spec.whatwg.org/#url-parsing + */ +enum class state { + AUTHORITY, + SCHEME_START, + SCHEME, + HOST, + NO_SCHEME, + FRAGMENT, + RELATIVE_SCHEME, + RELATIVE_SLASH, + FILE, + FILE_HOST, + FILE_SLASH, + PATH_OR_AUTHORITY, + SPECIAL_AUTHORITY_IGNORE_SLASHES, + SPECIAL_AUTHORITY_SLASHES, + SPECIAL_RELATIVE_OR_AUTHORITY, + QUERY, + PATH, + PATH_START, + OPAQUE_PATH, + PORT, +}; + +/** + * Stringify a URL state machine state. + */ +ada_warn_unused std::string to_string(ada::state s); + +} // namespace ada + +#endif // ADA_STATE_H +/* end file include/ada/state.h */ +/* begin file include/ada/url_base.h */ +/** + * @file url_base.h + * @brief Declaration for the basic URL definitions + */ +#ifndef ADA_URL_BASE_H +#define ADA_URL_BASE_H + +/* begin file include/ada/url_components.h */ +/** + * @file url_components.h + * @brief Declaration for the URL Components + */ +#ifndef ADA_URL_COMPONENTS_H +#define ADA_URL_COMPONENTS_H + + +#include +#include + +namespace ada { + +/** + * @brief URL Component representations using offsets. + * + * @details We design the url_components struct so that it is as small + * and simple as possible. This version uses 32 bytes. + * + * This struct is used to extract components from a single 'href'. + */ +struct url_components { + constexpr static uint32_t omitted = uint32_t(-1); + + url_components() = default; + url_components(const url_components &u) = default; + url_components(url_components &&u) noexcept = default; + url_components &operator=(url_components &&u) noexcept = default; + url_components &operator=(const url_components &u) = default; + ~url_components() = default; + + /* + * By using 32-bit integers, we implicitly assume that the URL string + * cannot exceed 4 GB. + * + * https://user:pass@example.com:1234/foo/bar?baz#quux + * | | | | ^^^^| | | + * | | | | | | | `----- hash_start + * | | | | | | `--------- search_start + * | | | | | `----------------- pathname_start + * | | | | `--------------------- port + * | | | `----------------------- host_end + * | | `---------------------------------- host_start + * | `--------------------------------------- username_end + * `--------------------------------------------- protocol_end + */ + uint32_t protocol_end{0}; + /** + * Username end is not `omitted` by default to make username and password + * getters less costly to implement. + */ + uint32_t username_end{0}; + uint32_t host_start{0}; + uint32_t host_end{0}; + uint32_t port{omitted}; + uint32_t pathname_start{0}; + uint32_t search_start{omitted}; + uint32_t hash_start{omitted}; + + /** + * Check the following conditions: + * protocol_end < username_end < ... < hash_start, + * expect when a value is omitted. It also computes + * a lower bound on the possible string length that may match these + * offsets. + * @return true if the offset values are + * consistent with a possible URL string + */ + [[nodiscard]] bool check_offset_consistency() const noexcept; + + /** + * Converts a url_components to JSON stringified version. + */ + [[nodiscard]] std::string to_string() const; + +}; // struct url_components + +} // namespace ada +#endif +/* end file include/ada/url_components.h */ +/* begin file include/ada/scheme.h */ +/** + * @file scheme.h + * @brief Declarations for the URL scheme. + */ +#ifndef ADA_SCHEME_H +#define ADA_SCHEME_H + + +#include +#include +#include + +/** + * @namespace ada::scheme + * @brief Includes the scheme declarations + */ +namespace ada::scheme { + +/** + * Type of the scheme as an enum. + * Using strings to represent a scheme type is not ideal because + * checking for types involves string comparisons. It is faster to use + * a simple integer. + * In C++11, we are allowed to specify the underlying type of the enum. + * We pick an 8-bit integer (which allows up to 256 types). Specifying the + * type of the enum may help integration with other systems if the type + * variable is exposed (since its value will not depend on the compiler). + */ +enum type : uint8_t { + HTTP = 0, + NOT_SPECIAL = 1, + HTTPS = 2, + WS = 3, + FTP = 4, + WSS = 5, + FILE = 6 +}; + +/** + * A special scheme is an ASCII string that is listed in the first column of the + * following table. The default port for a special scheme is listed in the + * second column on the same row. The default port for any other ASCII string is + * null. + * + * @see https://url.spec.whatwg.org/#url-miscellaneous + * @param scheme + * @return If scheme is a special scheme + */ +ada_really_inline constexpr bool is_special(std::string_view scheme); + +/** + * A special scheme is an ASCII string that is listed in the first column of the + * following table. The default port for a special scheme is listed in the + * second column on the same row. The default port for any other ASCII string is + * null. + * + * @see https://url.spec.whatwg.org/#url-miscellaneous + * @param scheme + * @return The special port + */ +constexpr uint16_t get_special_port(std::string_view scheme) noexcept; + +/** + * Returns the port number of a special scheme. + * @see https://url.spec.whatwg.org/#special-scheme + */ +constexpr uint16_t get_special_port(ada::scheme::type type) noexcept; +/** + * Returns the scheme of an input, or NOT_SPECIAL if it's not a special scheme + * defined by the spec. + */ +constexpr ada::scheme::type get_scheme_type(std::string_view scheme) noexcept; + +} // namespace ada::scheme + +#endif // ADA_SCHEME_H +/* end file include/ada/scheme.h */ + +#include + +namespace ada { + +/** + * Type of URL host as an enum. + */ +enum url_host_type : uint8_t { + /** + * Represents common URLs such as "https://www.google.com" + */ + DEFAULT = 0, + /** + * Represents ipv4 addresses such as "http://127.0.0.1" + */ + IPV4 = 1, + /** + * Represents ipv6 addresses such as + * "http://[2001:db8:3333:4444:5555:6666:7777:8888]" + */ + IPV6 = 2, +}; + +/** + * @brief Base class of URL implementations + * + * @details A url_base contains a few attributes: is_valid, has_opaque_path and + * type. All non-trivial implementation details are in derived classes such as + * ada::url and ada::url_aggregator. + * + * It is an abstract class that cannot be instantiated directly. + */ +struct url_base { + virtual ~url_base() = default; + + /** + * Used for returning the validity from the result of the URL parser. + */ + bool is_valid{true}; + + /** + * A URL has an opaque path if its path is a string. + */ + bool has_opaque_path{false}; + + /** + * URL hosts type + */ + url_host_type host_type = url_host_type::DEFAULT; + + /** + * @private + */ + ada::scheme::type type{ada::scheme::type::NOT_SPECIAL}; + + /** + * A URL is special if its scheme is a special scheme. A URL is not special if + * its scheme is not a special scheme. + */ + [[nodiscard]] ada_really_inline bool is_special() const noexcept; + + /** + * The origin getter steps are to return the serialization of this's URL's + * origin. [HTML] + * @return a newly allocated string. + * @see https://url.spec.whatwg.org/#concept-url-origin + */ + [[nodiscard]] virtual std::string get_origin() const noexcept = 0; + + /** + * Returns true if this URL has a valid domain as per RFC 1034 and + * corresponding specifications. Among other things, it requires + * that the domain string has fewer than 255 octets. + */ + [[nodiscard]] virtual bool has_valid_domain() const noexcept = 0; + + /** + * @private + * + * Return the 'special port' if the URL is special and not 'file'. + * Returns 0 otherwise. + */ + [[nodiscard]] inline uint16_t get_special_port() const noexcept; + + /** + * @private + * + * Get the default port if the url's scheme has one, returns 0 otherwise. + */ + [[nodiscard]] ada_really_inline uint16_t scheme_default_port() const noexcept; + + /** + * @private + * + * Parse a port (16-bit decimal digit) from the provided input. + * We assume that the input does not contain spaces or tabs + * within the ASCII digits. + * It returns how many bytes were consumed when a number is successfully + * parsed. + * @return On failure, it returns zero. + * @see https://url.spec.whatwg.org/#host-parsing + */ + virtual size_t parse_port(std::string_view view, + bool check_trailing_content) noexcept = 0; + + virtual ada_really_inline size_t parse_port(std::string_view view) noexcept { + return this->parse_port(view, false); + } + + /** + * Returns a JSON string representation of this URL. + */ + [[nodiscard]] virtual std::string to_string() const = 0; + + /** @private */ + virtual inline void clear_pathname() = 0; + + /** @private */ + virtual inline void clear_search() = 0; + + /** @private */ + [[nodiscard]] virtual inline bool has_hash() const noexcept = 0; + + /** @private */ + [[nodiscard]] virtual inline bool has_search() const noexcept = 0; + +}; // url_base + +} // namespace ada + +#endif +/* end file include/ada/url_base.h */ + +#include +#include + +/** + * @private + * @namespace ada::helpers + * @brief Includes the definitions for helper functions + */ +namespace ada::helpers { + +/** + * @private + */ +template +void encode_json(std::string_view view, out_iter out); + +/** + * @private + * This function is used to prune a fragment from a url, and returning the + * removed string if input has fragment. + * + * @details prune_hash seeks the first '#' and returns everything after it + * as a string_view, and modifies (in place) the input so that it points at + * everything before the '#'. If no '#' is found, the input is left unchanged + * and std::nullopt is returned. + * + * @attention The function is non-allocating and it does not throw. + * @returns Note that the returned string_view might be empty! + */ +ada_really_inline std::optional prune_hash( + std::string_view& input) noexcept; + +/** + * @private + * Defined by the URL specification, shorten a URLs paths. + * @see https://url.spec.whatwg.org/#shorten-a-urls-path + * @returns Returns true if path is shortened. + */ +ada_really_inline bool shorten_path(std::string& path, + ada::scheme::type type) noexcept; + +/** + * @private + * Defined by the URL specification, shorten a URLs paths. + * @see https://url.spec.whatwg.org/#shorten-a-urls-path + * @returns Returns true if path is shortened. + */ +ada_really_inline bool shorten_path(std::string_view& path, + ada::scheme::type type) noexcept; + +/** + * @private + * + * Parse the path from the provided input and append to the existing + * (possibly empty) path. The input cannot contain tabs and spaces: it + * is the user's responsibility to check. + * + * The input is expected to be UTF-8. + * + * @see https://url.spec.whatwg.org/ + */ +ada_really_inline void parse_prepared_path(std::string_view input, + ada::scheme::type type, + std::string& path); + +/** + * @private + * Remove and mutate all ASCII tab or newline characters from an input. + */ +ada_really_inline void remove_ascii_tab_or_newline(std::string& input) noexcept; + +/** + * @private + * Return the substring from input going from index pos to the end. + * This function cannot throw. + */ +ada_really_inline std::string_view substring(std::string_view input, + size_t pos) noexcept; + +/** + * @private + * Returns true if the string_view points within the string. + */ +bool overlaps(std::string_view input1, const std::string& input2) noexcept; + +/** + * @private + * Return the substring from input going from index pos1 to the pos2 (non + * included). The length of the substring is pos2 - pos1. + */ +ada_really_inline std::string_view substring(const std::string& input, + size_t pos1, + size_t pos2) noexcept { +#if ADA_DEVELOPMENT_CHECKS + if (pos2 < pos1) { + std::cerr << "Negative-length substring: [" << pos1 << " to " << pos2 << ")" + << std::endl; + abort(); + } +#endif + return std::string_view(input.data() + pos1, pos2 - pos1); +} + +/** + * @private + * Modify the string_view so that it has the new size pos, assuming that pos <= + * input.size(). This function cannot throw. + */ +ada_really_inline void resize(std::string_view& input, size_t pos) noexcept; + +/** + * @private + * Returns a host's delimiter location depending on the state of the instance, + * and whether a colon was found outside brackets. Used by the host parser. + */ +ada_really_inline std::pair get_host_delimiter_location( + const bool is_special, std::string_view& view) noexcept; + +/** + * @private + * Removes leading and trailing C0 control and whitespace characters from + * string. + */ +ada_really_inline void trim_c0_whitespace(std::string_view& input) noexcept; + +/** + * @private + * @see + * https://url.spec.whatwg.org/#potentially-strip-trailing-spaces-from-an-opaque-path + */ +template +ada_really_inline void strip_trailing_spaces_from_opaque_path( + url_type& url) noexcept; + +/** + * @private + * Finds the delimiter of a view in authority state. + */ +ada_really_inline size_t +find_authority_delimiter_special(std::string_view view) noexcept; + +/** + * @private + * Finds the delimiter of a view in authority state. + */ +ada_really_inline size_t +find_authority_delimiter(std::string_view view) noexcept; + +/** + * @private + */ +template +inline void inner_concat(std::string& buffer, T t) { + buffer.append(t); +} + +/** + * @private + */ +template +inline void inner_concat(std::string& buffer, T t, Args... args) { + buffer.append(t); + return inner_concat(buffer, args...); +} + +/** + * Concatenate the arguments and return a string. + * @returns a string + */ +template +std::string concat(Args... args) { + std::string answer; + inner_concat(answer, args...); + return answer; +} + +/** + * @return Number of leading zeroes. + */ +inline int leading_zeroes(uint32_t input_num) noexcept { +#if ADA_REGULAR_VISUAL_STUDIO + unsigned long leading_zero(0); + unsigned long in(input_num); + return _BitScanReverse(&leading_zero, in) ? int(31 - leading_zero) : 32; +#else + return __builtin_clz(input_num); +#endif // ADA_REGULAR_VISUAL_STUDIO +} + +/** + * Counts the number of decimal digits necessary to represent x. + * faster than std::to_string(x).size(). + * @return digit count + */ +inline int fast_digit_count(uint32_t x) noexcept { + auto int_log2 = [](uint32_t z) -> int { + return 31 - ada::helpers::leading_zeroes(z | 1); + }; + // Compiles to very few instructions. Note that the + // table is static and thus effectively a constant. + // We leave it inside the function because it is meaningless + // outside of it (this comes at no performance cost). + const static uint64_t table[] = { + 4294967296, 8589934582, 8589934582, 8589934582, 12884901788, + 12884901788, 12884901788, 17179868184, 17179868184, 17179868184, + 21474826480, 21474826480, 21474826480, 21474826480, 25769703776, + 25769703776, 25769703776, 30063771072, 30063771072, 30063771072, + 34349738368, 34349738368, 34349738368, 34349738368, 38554705664, + 38554705664, 38554705664, 41949672960, 41949672960, 41949672960, + 42949672960, 42949672960}; + return int((x + table[int_log2(x)]) >> 32); +} +} // namespace ada::helpers + +#endif // ADA_HELPERS_H +/* end file include/ada/helpers.h */ +/* begin file include/ada/parser.h */ +/** + * @file parser.h + * @brief Definitions for the parser. + */ +#ifndef ADA_PARSER_H +#define ADA_PARSER_H + +/* begin file include/ada/expected.h */ +/** + * @file expected.h + * @brief Definitions for std::expected + * @private Excluded from docs through the doxygen file. + */ +/// +// expected - An implementation of std::expected with extensions +// Written in 2017 by Sy Brand (tartanllama@gmail.com, @TartanLlama) +// +// Documentation available at http://tl.tartanllama.xyz/ +// +// To the extent possible under law, the author(s) have dedicated all +// copyright and related and neighboring rights to this software to the +// public domain worldwide. This software is distributed without any warranty. +// +// You should have received a copy of the CC0 Public Domain Dedication +// along with this software. If not, see +// . +/// + +#ifndef TL_EXPECTED_HPP +#define TL_EXPECTED_HPP + +#define TL_EXPECTED_VERSION_MAJOR 1 +#define TL_EXPECTED_VERSION_MINOR 1 +#define TL_EXPECTED_VERSION_PATCH 0 + +#include +#include +#include +#include + +#if defined(__EXCEPTIONS) || defined(_CPPUNWIND) +#define TL_EXPECTED_EXCEPTIONS_ENABLED +#endif + +#if (defined(_MSC_VER) && _MSC_VER == 1900) +#define TL_EXPECTED_MSVC2015 +#define TL_EXPECTED_MSVC2015_CONSTEXPR +#else +#define TL_EXPECTED_MSVC2015_CONSTEXPR constexpr +#endif + +#if (defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ <= 9 && \ + !defined(__clang__)) +#define TL_EXPECTED_GCC49 +#endif + +#if (defined(__GNUC__) && __GNUC__ == 5 && __GNUC_MINOR__ <= 4 && \ + !defined(__clang__)) +#define TL_EXPECTED_GCC54 +#endif + +#if (defined(__GNUC__) && __GNUC__ == 5 && __GNUC_MINOR__ <= 5 && \ + !defined(__clang__)) +#define TL_EXPECTED_GCC55 +#endif + +#if !defined(TL_ASSERT) +// can't have assert in constexpr in C++11 and GCC 4.9 has a compiler bug +#if (__cplusplus > 201103L) && !defined(TL_EXPECTED_GCC49) +#include +#define TL_ASSERT(x) assert(x) +#else +#define TL_ASSERT(x) +#endif +#endif + +#if (defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ <= 9 && \ + !defined(__clang__)) +// GCC < 5 doesn't support overloading on const&& for member functions + +#define TL_EXPECTED_NO_CONSTRR +// GCC < 5 doesn't support some standard C++11 type traits +#define TL_EXPECTED_IS_TRIVIALLY_COPY_CONSTRUCTIBLE(T) \ + std::has_trivial_copy_constructor +#define TL_EXPECTED_IS_TRIVIALLY_COPY_ASSIGNABLE(T) \ + std::has_trivial_copy_assign + +// This one will be different for GCC 5.7 if it's ever supported +#define TL_EXPECTED_IS_TRIVIALLY_DESTRUCTIBLE(T) \ + std::is_trivially_destructible + +// GCC 5 < v < 8 has a bug in is_trivially_copy_constructible which breaks +// std::vector for non-copyable types +#elif (defined(__GNUC__) && __GNUC__ < 8 && !defined(__clang__)) +#ifndef TL_GCC_LESS_8_TRIVIALLY_COPY_CONSTRUCTIBLE_MUTEX +#define TL_GCC_LESS_8_TRIVIALLY_COPY_CONSTRUCTIBLE_MUTEX +namespace tl { +namespace detail { +template +struct is_trivially_copy_constructible + : std::is_trivially_copy_constructible {}; +#ifdef _GLIBCXX_VECTOR +template +struct is_trivially_copy_constructible> : std::false_type {}; +#endif +} // namespace detail +} // namespace tl +#endif + +#define TL_EXPECTED_IS_TRIVIALLY_COPY_CONSTRUCTIBLE(T) \ + tl::detail::is_trivially_copy_constructible +#define TL_EXPECTED_IS_TRIVIALLY_COPY_ASSIGNABLE(T) \ + std::is_trivially_copy_assignable +#define TL_EXPECTED_IS_TRIVIALLY_DESTRUCTIBLE(T) \ + std::is_trivially_destructible +#else +#define TL_EXPECTED_IS_TRIVIALLY_COPY_CONSTRUCTIBLE(T) \ + std::is_trivially_copy_constructible +#define TL_EXPECTED_IS_TRIVIALLY_COPY_ASSIGNABLE(T) \ + std::is_trivially_copy_assignable +#define TL_EXPECTED_IS_TRIVIALLY_DESTRUCTIBLE(T) \ + std::is_trivially_destructible +#endif + +#if __cplusplus > 201103L +#define TL_EXPECTED_CXX14 +#endif + +#ifdef TL_EXPECTED_GCC49 +#define TL_EXPECTED_GCC49_CONSTEXPR +#else +#define TL_EXPECTED_GCC49_CONSTEXPR constexpr +#endif + +#if (__cplusplus == 201103L || defined(TL_EXPECTED_MSVC2015) || \ + defined(TL_EXPECTED_GCC49)) +#define TL_EXPECTED_11_CONSTEXPR +#else +#define TL_EXPECTED_11_CONSTEXPR constexpr +#endif + +namespace tl { +template +class expected; + +#ifndef TL_MONOSTATE_INPLACE_MUTEX +#define TL_MONOSTATE_INPLACE_MUTEX +class monostate {}; + +struct in_place_t { + explicit in_place_t() = default; +}; +static constexpr in_place_t in_place{}; +#endif + +template +class unexpected { + public: + static_assert(!std::is_same::value, "E must not be void"); + + unexpected() = delete; + constexpr explicit unexpected(const E &e) : m_val(e) {} + + constexpr explicit unexpected(E &&e) : m_val(std::move(e)) {} + + template ::value>::type * = nullptr> + constexpr explicit unexpected(Args &&...args) + : m_val(std::forward(args)...) {} + template < + class U, class... Args, + typename std::enable_if &, Args &&...>::value>::type * = nullptr> + constexpr explicit unexpected(std::initializer_list l, Args &&...args) + : m_val(l, std::forward(args)...) {} + + constexpr const E &value() const & { return m_val; } + TL_EXPECTED_11_CONSTEXPR E &value() & { return m_val; } + TL_EXPECTED_11_CONSTEXPR E &&value() && { return std::move(m_val); } + constexpr const E &&value() const && { return std::move(m_val); } + + private: + E m_val; +}; + +#ifdef __cpp_deduction_guides +template +unexpected(E) -> unexpected; +#endif + +template +constexpr bool operator==(const unexpected &lhs, const unexpected &rhs) { + return lhs.value() == rhs.value(); +} +template +constexpr bool operator!=(const unexpected &lhs, const unexpected &rhs) { + return lhs.value() != rhs.value(); +} +template +constexpr bool operator<(const unexpected &lhs, const unexpected &rhs) { + return lhs.value() < rhs.value(); +} +template +constexpr bool operator<=(const unexpected &lhs, const unexpected &rhs) { + return lhs.value() <= rhs.value(); +} +template +constexpr bool operator>(const unexpected &lhs, const unexpected &rhs) { + return lhs.value() > rhs.value(); +} +template +constexpr bool operator>=(const unexpected &lhs, const unexpected &rhs) { + return lhs.value() >= rhs.value(); +} + +template +unexpected::type> make_unexpected(E &&e) { + return unexpected::type>(std::forward(e)); +} + +struct unexpect_t { + unexpect_t() = default; +}; +static constexpr unexpect_t unexpect{}; + +namespace detail { +template +[[noreturn]] TL_EXPECTED_11_CONSTEXPR void throw_exception(E &&e) { +#ifdef TL_EXPECTED_EXCEPTIONS_ENABLED + throw std::forward(e); +#else + (void)e; +#ifdef _MSC_VER + __assume(0); +#else + __builtin_unreachable(); +#endif +#endif +} + +#ifndef TL_TRAITS_MUTEX +#define TL_TRAITS_MUTEX +// C++14-style aliases for brevity +template +using remove_const_t = typename std::remove_const::type; +template +using remove_reference_t = typename std::remove_reference::type; +template +using decay_t = typename std::decay::type; +template +using enable_if_t = typename std::enable_if::type; +template +using conditional_t = typename std::conditional::type; + +// std::conjunction from C++17 +template +struct conjunction : std::true_type {}; +template +struct conjunction : B {}; +template +struct conjunction + : std::conditional, B>::type {}; + +#if defined(_LIBCPP_VERSION) && __cplusplus == 201103L +#define TL_TRAITS_LIBCXX_MEM_FN_WORKAROUND +#endif + +// In C++11 mode, there's an issue in libc++'s std::mem_fn +// which results in a hard-error when using it in a noexcept expression +// in some cases. This is a check to workaround the common failing case. +#ifdef TL_TRAITS_LIBCXX_MEM_FN_WORKAROUND +template +struct is_pointer_to_non_const_member_func : std::false_type {}; +template +struct is_pointer_to_non_const_member_func + : std::true_type {}; +template +struct is_pointer_to_non_const_member_func + : std::true_type {}; +template +struct is_pointer_to_non_const_member_func + : std::true_type {}; +template +struct is_pointer_to_non_const_member_func + : std::true_type {}; +template +struct is_pointer_to_non_const_member_func + : std::true_type {}; +template +struct is_pointer_to_non_const_member_func + : std::true_type {}; + +template +struct is_const_or_const_ref : std::false_type {}; +template +struct is_const_or_const_ref : std::true_type {}; +template +struct is_const_or_const_ref : std::true_type {}; +#endif + +// std::invoke from C++17 +// https://stackoverflow.com/questions/38288042/c11-14-invoke-workaround +template < + typename Fn, typename... Args, +#ifdef TL_TRAITS_LIBCXX_MEM_FN_WORKAROUND + typename = enable_if_t::value && + is_const_or_const_ref::value)>, +#endif + typename = enable_if_t>::value>, int = 0> +constexpr auto invoke(Fn &&f, Args &&...args) noexcept( + noexcept(std::mem_fn(f)(std::forward(args)...))) + -> decltype(std::mem_fn(f)(std::forward(args)...)) { + return std::mem_fn(f)(std::forward(args)...); +} + +template >::value>> +constexpr auto invoke(Fn &&f, Args &&...args) noexcept( + noexcept(std::forward(f)(std::forward(args)...))) + -> decltype(std::forward(f)(std::forward(args)...)) { + return std::forward(f)(std::forward(args)...); +} + +// std::invoke_result from C++17 +template +struct invoke_result_impl; + +template +struct invoke_result_impl< + F, + decltype(detail::invoke(std::declval(), std::declval()...), void()), + Us...> { + using type = + decltype(detail::invoke(std::declval(), std::declval()...)); +}; + +template +using invoke_result = invoke_result_impl; + +template +using invoke_result_t = typename invoke_result::type; + +#if defined(_MSC_VER) && _MSC_VER <= 1900 +// TODO make a version which works with MSVC 2015 +template +struct is_swappable : std::true_type {}; + +template +struct is_nothrow_swappable : std::true_type {}; +#else +// https://stackoverflow.com/questions/26744589/what-is-a-proper-way-to-implement-is-swappable-to-test-for-the-swappable-concept +namespace swap_adl_tests { +// if swap ADL finds this then it would call std::swap otherwise (same +// signature) +struct tag {}; + +template +tag swap(T &, T &); +template +tag swap(T (&a)[N], T (&b)[N]); + +// helper functions to test if an unqualified swap is possible, and if it +// becomes std::swap +template +std::false_type can_swap(...) noexcept(false); +template (), std::declval()))> +std::true_type can_swap(int) noexcept(noexcept(swap(std::declval(), + std::declval()))); + +template +std::false_type uses_std(...); +template +std::is_same(), std::declval())), tag> +uses_std(int); + +template +struct is_std_swap_noexcept + : std::integral_constant::value && + std::is_nothrow_move_assignable::value> {}; + +template +struct is_std_swap_noexcept : is_std_swap_noexcept {}; + +template +struct is_adl_swap_noexcept + : std::integral_constant(0))> {}; +} // namespace swap_adl_tests + +template +struct is_swappable + : std::integral_constant< + bool, + decltype(detail::swap_adl_tests::can_swap(0))::value && + (!decltype(detail::swap_adl_tests::uses_std(0))::value || + (std::is_move_assignable::value && + std::is_move_constructible::value))> {}; + +template +struct is_swappable + : std::integral_constant< + bool, + decltype(detail::swap_adl_tests::can_swap(0))::value && + (!decltype(detail::swap_adl_tests::uses_std( + 0))::value || + is_swappable::value)> {}; + +template +struct is_nothrow_swappable + : std::integral_constant< + bool, + is_swappable::value && + ((decltype(detail::swap_adl_tests::uses_std(0))::value && + detail::swap_adl_tests::is_std_swap_noexcept::value) || + (!decltype(detail::swap_adl_tests::uses_std(0))::value && + detail::swap_adl_tests::is_adl_swap_noexcept::value))> {}; +#endif +#endif + +// Trait for checking if a type is a tl::expected +template +struct is_expected_impl : std::false_type {}; +template +struct is_expected_impl> : std::true_type {}; +template +using is_expected = is_expected_impl>; + +template +using expected_enable_forward_value = detail::enable_if_t< + std::is_constructible::value && + !std::is_same, in_place_t>::value && + !std::is_same, detail::decay_t>::value && + !std::is_same, detail::decay_t>::value>; + +template +using expected_enable_from_other = detail::enable_if_t< + std::is_constructible::value && + std::is_constructible::value && + !std::is_constructible &>::value && + !std::is_constructible &&>::value && + !std::is_constructible &>::value && + !std::is_constructible &&>::value && + !std::is_convertible &, T>::value && + !std::is_convertible &&, T>::value && + !std::is_convertible &, T>::value && + !std::is_convertible &&, T>::value>; + +template +using is_void_or = conditional_t::value, std::true_type, U>; + +template +using is_copy_constructible_or_void = + is_void_or>; + +template +using is_move_constructible_or_void = + is_void_or>; + +template +using is_copy_assignable_or_void = is_void_or>; + +template +using is_move_assignable_or_void = is_void_or>; + +} // namespace detail + +namespace detail { +struct no_init_t {}; +static constexpr no_init_t no_init{}; + +// Implements the storage of the values, and ensures that the destructor is +// trivial if it can be. +// +// This specialization is for where neither `T` or `E` is trivially +// destructible, so the destructors must be called on destruction of the +// `expected` +template ::value, + bool = std::is_trivially_destructible::value> +struct expected_storage_base { + constexpr expected_storage_base() : m_val(T{}), m_has_val(true) {} + constexpr expected_storage_base(no_init_t) : m_no_init(), m_has_val(false) {} + + template ::value> * = + nullptr> + constexpr expected_storage_base(in_place_t, Args &&...args) + : m_val(std::forward(args)...), m_has_val(true) {} + + template &, Args &&...>::value> * = nullptr> + constexpr expected_storage_base(in_place_t, std::initializer_list il, + Args &&...args) + : m_val(il, std::forward(args)...), m_has_val(true) {} + template ::value> * = + nullptr> + constexpr explicit expected_storage_base(unexpect_t, Args &&...args) + : m_unexpect(std::forward(args)...), m_has_val(false) {} + + template &, Args &&...>::value> * = nullptr> + constexpr explicit expected_storage_base(unexpect_t, + std::initializer_list il, + Args &&...args) + : m_unexpect(il, std::forward(args)...), m_has_val(false) {} + + ~expected_storage_base() { + if (m_has_val) { + m_val.~T(); + } else { + m_unexpect.~unexpected(); + } + } + union { + T m_val; + unexpected m_unexpect; + char m_no_init; + }; + bool m_has_val; +}; + +// This specialization is for when both `T` and `E` are trivially-destructible, +// so the destructor of the `expected` can be trivial. +template +struct expected_storage_base { + constexpr expected_storage_base() : m_val(T{}), m_has_val(true) {} + constexpr expected_storage_base(no_init_t) : m_no_init(), m_has_val(false) {} + + template ::value> * = + nullptr> + constexpr expected_storage_base(in_place_t, Args &&...args) + : m_val(std::forward(args)...), m_has_val(true) {} + + template &, Args &&...>::value> * = nullptr> + constexpr expected_storage_base(in_place_t, std::initializer_list il, + Args &&...args) + : m_val(il, std::forward(args)...), m_has_val(true) {} + template ::value> * = + nullptr> + constexpr explicit expected_storage_base(unexpect_t, Args &&...args) + : m_unexpect(std::forward(args)...), m_has_val(false) {} + + template &, Args &&...>::value> * = nullptr> + constexpr explicit expected_storage_base(unexpect_t, + std::initializer_list il, + Args &&...args) + : m_unexpect(il, std::forward(args)...), m_has_val(false) {} + + ~expected_storage_base() = default; + union { + T m_val; + unexpected m_unexpect; + char m_no_init; + }; + bool m_has_val; +}; + +// T is trivial, E is not. +template +struct expected_storage_base { + constexpr expected_storage_base() : m_val(T{}), m_has_val(true) {} + TL_EXPECTED_MSVC2015_CONSTEXPR expected_storage_base(no_init_t) + : m_no_init(), m_has_val(false) {} + + template ::value> * = + nullptr> + constexpr expected_storage_base(in_place_t, Args &&...args) + : m_val(std::forward(args)...), m_has_val(true) {} + + template &, Args &&...>::value> * = nullptr> + constexpr expected_storage_base(in_place_t, std::initializer_list il, + Args &&...args) + : m_val(il, std::forward(args)...), m_has_val(true) {} + template ::value> * = + nullptr> + constexpr explicit expected_storage_base(unexpect_t, Args &&...args) + : m_unexpect(std::forward(args)...), m_has_val(false) {} + + template &, Args &&...>::value> * = nullptr> + constexpr explicit expected_storage_base(unexpect_t, + std::initializer_list il, + Args &&...args) + : m_unexpect(il, std::forward(args)...), m_has_val(false) {} + + ~expected_storage_base() { + if (!m_has_val) { + m_unexpect.~unexpected(); + } + } + + union { + T m_val; + unexpected m_unexpect; + char m_no_init; + }; + bool m_has_val; +}; + +// E is trivial, T is not. +template +struct expected_storage_base { + constexpr expected_storage_base() : m_val(T{}), m_has_val(true) {} + constexpr expected_storage_base(no_init_t) : m_no_init(), m_has_val(false) {} + + template ::value> * = + nullptr> + constexpr expected_storage_base(in_place_t, Args &&...args) + : m_val(std::forward(args)...), m_has_val(true) {} + + template &, Args &&...>::value> * = nullptr> + constexpr expected_storage_base(in_place_t, std::initializer_list il, + Args &&...args) + : m_val(il, std::forward(args)...), m_has_val(true) {} + template ::value> * = + nullptr> + constexpr explicit expected_storage_base(unexpect_t, Args &&...args) + : m_unexpect(std::forward(args)...), m_has_val(false) {} + + template &, Args &&...>::value> * = nullptr> + constexpr explicit expected_storage_base(unexpect_t, + std::initializer_list il, + Args &&...args) + : m_unexpect(il, std::forward(args)...), m_has_val(false) {} + + ~expected_storage_base() { + if (m_has_val) { + m_val.~T(); + } + } + union { + T m_val; + unexpected m_unexpect; + char m_no_init; + }; + bool m_has_val; +}; + +// `T` is `void`, `E` is trivially-destructible +template +struct expected_storage_base { +#if __GNUC__ <= 5 +// no constexpr for GCC 4/5 bug +#else + TL_EXPECTED_MSVC2015_CONSTEXPR +#endif + expected_storage_base() : m_has_val(true) {} + + constexpr expected_storage_base(no_init_t) : m_val(), m_has_val(false) {} + + constexpr expected_storage_base(in_place_t) : m_has_val(true) {} + + template ::value> * = + nullptr> + constexpr explicit expected_storage_base(unexpect_t, Args &&...args) + : m_unexpect(std::forward(args)...), m_has_val(false) {} + + template &, Args &&...>::value> * = nullptr> + constexpr explicit expected_storage_base(unexpect_t, + std::initializer_list il, + Args &&...args) + : m_unexpect(il, std::forward(args)...), m_has_val(false) {} + + ~expected_storage_base() = default; + struct dummy {}; + union { + unexpected m_unexpect; + dummy m_val; + }; + bool m_has_val; +}; + +// `T` is `void`, `E` is not trivially-destructible +template +struct expected_storage_base { + constexpr expected_storage_base() : m_dummy(), m_has_val(true) {} + constexpr expected_storage_base(no_init_t) : m_dummy(), m_has_val(false) {} + + constexpr expected_storage_base(in_place_t) : m_dummy(), m_has_val(true) {} + + template ::value> * = + nullptr> + constexpr explicit expected_storage_base(unexpect_t, Args &&...args) + : m_unexpect(std::forward(args)...), m_has_val(false) {} + + template &, Args &&...>::value> * = nullptr> + constexpr explicit expected_storage_base(unexpect_t, + std::initializer_list il, + Args &&...args) + : m_unexpect(il, std::forward(args)...), m_has_val(false) {} + + ~expected_storage_base() { + if (!m_has_val) { + m_unexpect.~unexpected(); + } + } + + union { + unexpected m_unexpect; + char m_dummy; + }; + bool m_has_val; +}; + +// This base class provides some handy member functions which can be used in +// further derived classes +template +struct expected_operations_base : expected_storage_base { + using expected_storage_base::expected_storage_base; + + template + void construct(Args &&...args) noexcept { + new (std::addressof(this->m_val)) T(std::forward(args)...); + this->m_has_val = true; + } + + template + void construct_with(Rhs &&rhs) noexcept { + new (std::addressof(this->m_val)) T(std::forward(rhs).get()); + this->m_has_val = true; + } + + template + void construct_error(Args &&...args) noexcept { + new (std::addressof(this->m_unexpect)) + unexpected(std::forward(args)...); + this->m_has_val = false; + } + +#ifdef TL_EXPECTED_EXCEPTIONS_ENABLED + + // These assign overloads ensure that the most efficient assignment + // implementation is used while maintaining the strong exception guarantee. + // The problematic case is where rhs has a value, but *this does not. + // + // This overload handles the case where we can just copy-construct `T` + // directly into place without throwing. + template ::value> + * = nullptr> + void assign(const expected_operations_base &rhs) noexcept { + if (!this->m_has_val && rhs.m_has_val) { + geterr().~unexpected(); + construct(rhs.get()); + } else { + assign_common(rhs); + } + } + + // This overload handles the case where we can attempt to create a copy of + // `T`, then no-throw move it into place if the copy was successful. + template ::value && + std::is_nothrow_move_constructible::value> + * = nullptr> + void assign(const expected_operations_base &rhs) noexcept { + if (!this->m_has_val && rhs.m_has_val) { + T tmp = rhs.get(); + geterr().~unexpected(); + construct(std::move(tmp)); + } else { + assign_common(rhs); + } + } + + // This overload is the worst-case, where we have to move-construct the + // unexpected value into temporary storage, then try to copy the T into place. + // If the construction succeeds, then everything is fine, but if it throws, + // then we move the old unexpected value back into place before rethrowing the + // exception. + template ::value && + !std::is_nothrow_move_constructible::value> + * = nullptr> + void assign(const expected_operations_base &rhs) { + if (!this->m_has_val && rhs.m_has_val) { + auto tmp = std::move(geterr()); + geterr().~unexpected(); + +#ifdef TL_EXPECTED_EXCEPTIONS_ENABLED + try { + construct(rhs.get()); + } catch (...) { + geterr() = std::move(tmp); + throw; + } +#else + construct(rhs.get()); +#endif + } else { + assign_common(rhs); + } + } + + // These overloads do the same as above, but for rvalues + template ::value> + * = nullptr> + void assign(expected_operations_base &&rhs) noexcept { + if (!this->m_has_val && rhs.m_has_val) { + geterr().~unexpected(); + construct(std::move(rhs).get()); + } else { + assign_common(std::move(rhs)); + } + } + + template ::value> + * = nullptr> + void assign(expected_operations_base &&rhs) { + if (!this->m_has_val && rhs.m_has_val) { + auto tmp = std::move(geterr()); + geterr().~unexpected(); +#ifdef TL_EXPECTED_EXCEPTIONS_ENABLED + try { + construct(std::move(rhs).get()); + } catch (...) { + geterr() = std::move(tmp); + throw; + } +#else + construct(std::move(rhs).get()); +#endif + } else { + assign_common(std::move(rhs)); + } + } + +#else + + // If exceptions are disabled then we can just copy-construct + void assign(const expected_operations_base &rhs) noexcept { + if (!this->m_has_val && rhs.m_has_val) { + geterr().~unexpected(); + construct(rhs.get()); + } else { + assign_common(rhs); + } + } + + void assign(expected_operations_base &&rhs) noexcept { + if (!this->m_has_val && rhs.m_has_val) { + geterr().~unexpected(); + construct(std::move(rhs).get()); + } else { + assign_common(std::move(rhs)); + } + } + +#endif + + // The common part of move/copy assigning + template + void assign_common(Rhs &&rhs) { + if (this->m_has_val) { + if (rhs.m_has_val) { + get() = std::forward(rhs).get(); + } else { + destroy_val(); + construct_error(std::forward(rhs).geterr()); + } + } else { + if (!rhs.m_has_val) { + geterr() = std::forward(rhs).geterr(); + } + } + } + + bool has_value() const { return this->m_has_val; } + + TL_EXPECTED_11_CONSTEXPR T &get() & { return this->m_val; } + constexpr const T &get() const & { return this->m_val; } + TL_EXPECTED_11_CONSTEXPR T &&get() && { return std::move(this->m_val); } +#ifndef TL_EXPECTED_NO_CONSTRR + constexpr const T &&get() const && { return std::move(this->m_val); } +#endif + + TL_EXPECTED_11_CONSTEXPR unexpected &geterr() & { + return this->m_unexpect; + } + constexpr const unexpected &geterr() const & { return this->m_unexpect; } + TL_EXPECTED_11_CONSTEXPR unexpected &&geterr() && { + return std::move(this->m_unexpect); + } +#ifndef TL_EXPECTED_NO_CONSTRR + constexpr const unexpected &&geterr() const && { + return std::move(this->m_unexpect); + } +#endif + + TL_EXPECTED_11_CONSTEXPR void destroy_val() { get().~T(); } +}; + +// This base class provides some handy member functions which can be used in +// further derived classes +template +struct expected_operations_base : expected_storage_base { + using expected_storage_base::expected_storage_base; + + template + void construct() noexcept { + this->m_has_val = true; + } + + // This function doesn't use its argument, but needs it so that code in + // levels above this can work independently of whether T is void + template + void construct_with(Rhs &&) noexcept { + this->m_has_val = true; + } + + template + void construct_error(Args &&...args) noexcept { + new (std::addressof(this->m_unexpect)) + unexpected(std::forward(args)...); + this->m_has_val = false; + } + + template + void assign(Rhs &&rhs) noexcept { + if (!this->m_has_val) { + if (rhs.m_has_val) { + geterr().~unexpected(); + construct(); + } else { + geterr() = std::forward(rhs).geterr(); + } + } else { + if (!rhs.m_has_val) { + construct_error(std::forward(rhs).geterr()); + } + } + } + + bool has_value() const { return this->m_has_val; } + + TL_EXPECTED_11_CONSTEXPR unexpected &geterr() & { + return this->m_unexpect; + } + constexpr const unexpected &geterr() const & { return this->m_unexpect; } + TL_EXPECTED_11_CONSTEXPR unexpected &&geterr() && { + return std::move(this->m_unexpect); + } +#ifndef TL_EXPECTED_NO_CONSTRR + constexpr const unexpected &&geterr() const && { + return std::move(this->m_unexpect); + } +#endif + + TL_EXPECTED_11_CONSTEXPR void destroy_val() { + // no-op + } +}; + +// This class manages conditionally having a trivial copy constructor +// This specialization is for when T and E are trivially copy constructible +template :: + value &&TL_EXPECTED_IS_TRIVIALLY_COPY_CONSTRUCTIBLE(E)::value> +struct expected_copy_base : expected_operations_base { + using expected_operations_base::expected_operations_base; +}; + +// This specialization is for when T or E are not trivially copy constructible +template +struct expected_copy_base : expected_operations_base { + using expected_operations_base::expected_operations_base; + + expected_copy_base() = default; + expected_copy_base(const expected_copy_base &rhs) + : expected_operations_base(no_init) { + if (rhs.has_value()) { + this->construct_with(rhs); + } else { + this->construct_error(rhs.geterr()); + } + } + + expected_copy_base(expected_copy_base &&rhs) = default; + expected_copy_base &operator=(const expected_copy_base &rhs) = default; + expected_copy_base &operator=(expected_copy_base &&rhs) = default; +}; + +// This class manages conditionally having a trivial move constructor +// Unfortunately there's no way to achieve this in GCC < 5 AFAIK, since it +// doesn't implement an analogue to std::is_trivially_move_constructible. We +// have to make do with a non-trivial move constructor even if T is trivially +// move constructible +#ifndef TL_EXPECTED_GCC49 +template >::value + &&std::is_trivially_move_constructible::value> +struct expected_move_base : expected_copy_base { + using expected_copy_base::expected_copy_base; +}; +#else +template +struct expected_move_base; +#endif +template +struct expected_move_base : expected_copy_base { + using expected_copy_base::expected_copy_base; + + expected_move_base() = default; + expected_move_base(const expected_move_base &rhs) = default; + + expected_move_base(expected_move_base &&rhs) noexcept( + std::is_nothrow_move_constructible::value) + : expected_copy_base(no_init) { + if (rhs.has_value()) { + this->construct_with(std::move(rhs)); + } else { + this->construct_error(std::move(rhs.geterr())); + } + } + expected_move_base &operator=(const expected_move_base &rhs) = default; + expected_move_base &operator=(expected_move_base &&rhs) = default; +}; + +// This class manages conditionally having a trivial copy assignment operator +template >::value + &&TL_EXPECTED_IS_TRIVIALLY_COPY_ASSIGNABLE(E)::value + &&TL_EXPECTED_IS_TRIVIALLY_COPY_CONSTRUCTIBLE(E)::value + &&TL_EXPECTED_IS_TRIVIALLY_DESTRUCTIBLE(E)::value> +struct expected_copy_assign_base : expected_move_base { + using expected_move_base::expected_move_base; +}; + +template +struct expected_copy_assign_base : expected_move_base { + using expected_move_base::expected_move_base; + + expected_copy_assign_base() = default; + expected_copy_assign_base(const expected_copy_assign_base &rhs) = default; + + expected_copy_assign_base(expected_copy_assign_base &&rhs) = default; + expected_copy_assign_base &operator=(const expected_copy_assign_base &rhs) { + this->assign(rhs); + return *this; + } + expected_copy_assign_base &operator=(expected_copy_assign_base &&rhs) = + default; +}; + +// This class manages conditionally having a trivial move assignment operator +// Unfortunately there's no way to achieve this in GCC < 5 AFAIK, since it +// doesn't implement an analogue to std::is_trivially_move_assignable. We have +// to make do with a non-trivial move assignment operator even if T is trivially +// move assignable +#ifndef TL_EXPECTED_GCC49 +template , + std::is_trivially_move_constructible, + std::is_trivially_move_assignable>>:: + value &&std::is_trivially_destructible::value + &&std::is_trivially_move_constructible::value + &&std::is_trivially_move_assignable::value> +struct expected_move_assign_base : expected_copy_assign_base { + using expected_copy_assign_base::expected_copy_assign_base; +}; +#else +template +struct expected_move_assign_base; +#endif + +template +struct expected_move_assign_base + : expected_copy_assign_base { + using expected_copy_assign_base::expected_copy_assign_base; + + expected_move_assign_base() = default; + expected_move_assign_base(const expected_move_assign_base &rhs) = default; + + expected_move_assign_base(expected_move_assign_base &&rhs) = default; + + expected_move_assign_base &operator=(const expected_move_assign_base &rhs) = + default; + + expected_move_assign_base & + operator=(expected_move_assign_base &&rhs) noexcept( + std::is_nothrow_move_constructible::value + &&std::is_nothrow_move_assignable::value) { + this->assign(std::move(rhs)); + return *this; + } +}; + +// expected_delete_ctor_base will conditionally delete copy and move +// constructors depending on whether T is copy/move constructible +template ::value && + std::is_copy_constructible::value), + bool EnableMove = (is_move_constructible_or_void::value && + std::is_move_constructible::value)> +struct expected_delete_ctor_base { + expected_delete_ctor_base() = default; + expected_delete_ctor_base(const expected_delete_ctor_base &) = default; + expected_delete_ctor_base(expected_delete_ctor_base &&) noexcept = default; + expected_delete_ctor_base &operator=(const expected_delete_ctor_base &) = + default; + expected_delete_ctor_base &operator=(expected_delete_ctor_base &&) noexcept = + default; +}; + +template +struct expected_delete_ctor_base { + expected_delete_ctor_base() = default; + expected_delete_ctor_base(const expected_delete_ctor_base &) = default; + expected_delete_ctor_base(expected_delete_ctor_base &&) noexcept = delete; + expected_delete_ctor_base &operator=(const expected_delete_ctor_base &) = + default; + expected_delete_ctor_base &operator=(expected_delete_ctor_base &&) noexcept = + default; +}; + +template +struct expected_delete_ctor_base { + expected_delete_ctor_base() = default; + expected_delete_ctor_base(const expected_delete_ctor_base &) = delete; + expected_delete_ctor_base(expected_delete_ctor_base &&) noexcept = default; + expected_delete_ctor_base &operator=(const expected_delete_ctor_base &) = + default; + expected_delete_ctor_base &operator=(expected_delete_ctor_base &&) noexcept = + default; +}; + +template +struct expected_delete_ctor_base { + expected_delete_ctor_base() = default; + expected_delete_ctor_base(const expected_delete_ctor_base &) = delete; + expected_delete_ctor_base(expected_delete_ctor_base &&) noexcept = delete; + expected_delete_ctor_base &operator=(const expected_delete_ctor_base &) = + default; + expected_delete_ctor_base &operator=(expected_delete_ctor_base &&) noexcept = + default; +}; + +// expected_delete_assign_base will conditionally delete copy and move +// constructors depending on whether T and E are copy/move constructible + +// assignable +template ::value && + std::is_copy_constructible::value && + is_copy_assignable_or_void::value && + std::is_copy_assignable::value), + bool EnableMove = (is_move_constructible_or_void::value && + std::is_move_constructible::value && + is_move_assignable_or_void::value && + std::is_move_assignable::value)> +struct expected_delete_assign_base { + expected_delete_assign_base() = default; + expected_delete_assign_base(const expected_delete_assign_base &) = default; + expected_delete_assign_base(expected_delete_assign_base &&) noexcept = + default; + expected_delete_assign_base &operator=(const expected_delete_assign_base &) = + default; + expected_delete_assign_base &operator=( + expected_delete_assign_base &&) noexcept = default; +}; + +template +struct expected_delete_assign_base { + expected_delete_assign_base() = default; + expected_delete_assign_base(const expected_delete_assign_base &) = default; + expected_delete_assign_base(expected_delete_assign_base &&) noexcept = + default; + expected_delete_assign_base &operator=(const expected_delete_assign_base &) = + default; + expected_delete_assign_base &operator=( + expected_delete_assign_base &&) noexcept = delete; +}; + +template +struct expected_delete_assign_base { + expected_delete_assign_base() = default; + expected_delete_assign_base(const expected_delete_assign_base &) = default; + expected_delete_assign_base(expected_delete_assign_base &&) noexcept = + default; + expected_delete_assign_base &operator=(const expected_delete_assign_base &) = + delete; + expected_delete_assign_base &operator=( + expected_delete_assign_base &&) noexcept = default; +}; + +template +struct expected_delete_assign_base { + expected_delete_assign_base() = default; + expected_delete_assign_base(const expected_delete_assign_base &) = default; + expected_delete_assign_base(expected_delete_assign_base &&) noexcept = + default; + expected_delete_assign_base &operator=(const expected_delete_assign_base &) = + delete; + expected_delete_assign_base &operator=( + expected_delete_assign_base &&) noexcept = delete; +}; + +// This is needed to be able to construct the expected_default_ctor_base which +// follows, while still conditionally deleting the default constructor. +struct default_constructor_tag { + explicit constexpr default_constructor_tag() = default; +}; + +// expected_default_ctor_base will ensure that expected has a deleted default +// consturctor if T is not default constructible. +// This specialization is for when T is default constructible +template ::value || std::is_void::value> +struct expected_default_ctor_base { + constexpr expected_default_ctor_base() noexcept = default; + constexpr expected_default_ctor_base( + expected_default_ctor_base const &) noexcept = default; + constexpr expected_default_ctor_base(expected_default_ctor_base &&) noexcept = + default; + expected_default_ctor_base &operator=( + expected_default_ctor_base const &) noexcept = default; + expected_default_ctor_base &operator=( + expected_default_ctor_base &&) noexcept = default; + + constexpr explicit expected_default_ctor_base(default_constructor_tag) {} +}; + +// This specialization is for when T is not default constructible +template +struct expected_default_ctor_base { + constexpr expected_default_ctor_base() noexcept = delete; + constexpr expected_default_ctor_base( + expected_default_ctor_base const &) noexcept = default; + constexpr expected_default_ctor_base(expected_default_ctor_base &&) noexcept = + default; + expected_default_ctor_base &operator=( + expected_default_ctor_base const &) noexcept = default; + expected_default_ctor_base &operator=( + expected_default_ctor_base &&) noexcept = default; + + constexpr explicit expected_default_ctor_base(default_constructor_tag) {} +}; +} // namespace detail + +template +class bad_expected_access : public std::exception { + public: + explicit bad_expected_access(E e) : m_val(std::move(e)) {} + + virtual const char *what() const noexcept override { + return "Bad expected access"; + } + + const E &error() const & { return m_val; } + E &error() & { return m_val; } + const E &&error() const && { return std::move(m_val); } + E &&error() && { return std::move(m_val); } + + private: + E m_val; +}; + +/// An `expected` object is an object that contains the storage for +/// another object and manages the lifetime of this contained object `T`. +/// Alternatively it could contain the storage for another unexpected object +/// `E`. The contained object may not be initialized after the expected object +/// has been initialized, and may not be destroyed before the expected object +/// has been destroyed. The initialization state of the contained object is +/// tracked by the expected object. +template +class expected : private detail::expected_move_assign_base, + private detail::expected_delete_ctor_base, + private detail::expected_delete_assign_base, + private detail::expected_default_ctor_base { + static_assert(!std::is_reference::value, "T must not be a reference"); + static_assert(!std::is_same::type>::value, + "T must not be in_place_t"); + static_assert(!std::is_same::type>::value, + "T must not be unexpect_t"); + static_assert( + !std::is_same>::type>::value, + "T must not be unexpected"); + static_assert(!std::is_reference::value, "E must not be a reference"); + + T *valptr() { return std::addressof(this->m_val); } + const T *valptr() const { return std::addressof(this->m_val); } + unexpected *errptr() { return std::addressof(this->m_unexpect); } + const unexpected *errptr() const { + return std::addressof(this->m_unexpect); + } + + template ::value> * = nullptr> + TL_EXPECTED_11_CONSTEXPR U &val() { + return this->m_val; + } + TL_EXPECTED_11_CONSTEXPR unexpected &err() { return this->m_unexpect; } + + template ::value> * = nullptr> + constexpr const U &val() const { + return this->m_val; + } + constexpr const unexpected &err() const { return this->m_unexpect; } + + using impl_base = detail::expected_move_assign_base; + using ctor_base = detail::expected_default_ctor_base; + + public: + typedef T value_type; + typedef E error_type; + typedef unexpected unexpected_type; + +#if defined(TL_EXPECTED_CXX14) && !defined(TL_EXPECTED_GCC49) && \ + !defined(TL_EXPECTED_GCC54) && !defined(TL_EXPECTED_GCC55) + template + TL_EXPECTED_11_CONSTEXPR auto and_then(F &&f) & { + return and_then_impl(*this, std::forward(f)); + } + template + TL_EXPECTED_11_CONSTEXPR auto and_then(F &&f) && { + return and_then_impl(std::move(*this), std::forward(f)); + } + template + constexpr auto and_then(F &&f) const & { + return and_then_impl(*this, std::forward(f)); + } + +#ifndef TL_EXPECTED_NO_CONSTRR + template + constexpr auto and_then(F &&f) const && { + return and_then_impl(std::move(*this), std::forward(f)); + } +#endif + +#else + template + TL_EXPECTED_11_CONSTEXPR auto and_then(F &&f) & -> decltype(and_then_impl( + std::declval(), std::forward(f))) { + return and_then_impl(*this, std::forward(f)); + } + template + TL_EXPECTED_11_CONSTEXPR auto and_then(F &&f) && -> decltype(and_then_impl( + std::declval(), std::forward(f))) { + return and_then_impl(std::move(*this), std::forward(f)); + } + template + constexpr auto and_then(F &&f) const & -> decltype(and_then_impl( + std::declval(), std::forward(f))) { + return and_then_impl(*this, std::forward(f)); + } + +#ifndef TL_EXPECTED_NO_CONSTRR + template + constexpr auto and_then(F &&f) const && -> decltype(and_then_impl( + std::declval(), std::forward(f))) { + return and_then_impl(std::move(*this), std::forward(f)); + } +#endif +#endif + +#if defined(TL_EXPECTED_CXX14) && !defined(TL_EXPECTED_GCC49) && \ + !defined(TL_EXPECTED_GCC54) && !defined(TL_EXPECTED_GCC55) + template + TL_EXPECTED_11_CONSTEXPR auto map(F &&f) & { + return expected_map_impl(*this, std::forward(f)); + } + template + TL_EXPECTED_11_CONSTEXPR auto map(F &&f) && { + return expected_map_impl(std::move(*this), std::forward(f)); + } + template + constexpr auto map(F &&f) const & { + return expected_map_impl(*this, std::forward(f)); + } + template + constexpr auto map(F &&f) const && { + return expected_map_impl(std::move(*this), std::forward(f)); + } +#else + template + TL_EXPECTED_11_CONSTEXPR decltype(expected_map_impl( + std::declval(), std::declval())) + map(F &&f) & { + return expected_map_impl(*this, std::forward(f)); + } + template + TL_EXPECTED_11_CONSTEXPR decltype(expected_map_impl(std::declval(), + std::declval())) + map(F &&f) && { + return expected_map_impl(std::move(*this), std::forward(f)); + } + template + constexpr decltype(expected_map_impl(std::declval(), + std::declval())) + map(F &&f) const & { + return expected_map_impl(*this, std::forward(f)); + } + +#ifndef TL_EXPECTED_NO_CONSTRR + template + constexpr decltype(expected_map_impl(std::declval(), + std::declval())) + map(F &&f) const && { + return expected_map_impl(std::move(*this), std::forward(f)); + } +#endif +#endif + +#if defined(TL_EXPECTED_CXX14) && !defined(TL_EXPECTED_GCC49) && \ + !defined(TL_EXPECTED_GCC54) && !defined(TL_EXPECTED_GCC55) + template + TL_EXPECTED_11_CONSTEXPR auto transform(F &&f) & { + return expected_map_impl(*this, std::forward(f)); + } + template + TL_EXPECTED_11_CONSTEXPR auto transform(F &&f) && { + return expected_map_impl(std::move(*this), std::forward(f)); + } + template + constexpr auto transform(F &&f) const & { + return expected_map_impl(*this, std::forward(f)); + } + template + constexpr auto transform(F &&f) const && { + return expected_map_impl(std::move(*this), std::forward(f)); + } +#else + template + TL_EXPECTED_11_CONSTEXPR decltype(expected_map_impl( + std::declval(), std::declval())) + transform(F &&f) & { + return expected_map_impl(*this, std::forward(f)); + } + template + TL_EXPECTED_11_CONSTEXPR decltype(expected_map_impl(std::declval(), + std::declval())) + transform(F &&f) && { + return expected_map_impl(std::move(*this), std::forward(f)); + } + template + constexpr decltype(expected_map_impl(std::declval(), + std::declval())) + transform(F &&f) const & { + return expected_map_impl(*this, std::forward(f)); + } + +#ifndef TL_EXPECTED_NO_CONSTRR + template + constexpr decltype(expected_map_impl(std::declval(), + std::declval())) + transform(F &&f) const && { + return expected_map_impl(std::move(*this), std::forward(f)); + } +#endif +#endif + +#if defined(TL_EXPECTED_CXX14) && !defined(TL_EXPECTED_GCC49) && \ + !defined(TL_EXPECTED_GCC54) && !defined(TL_EXPECTED_GCC55) + template + TL_EXPECTED_11_CONSTEXPR auto map_error(F &&f) & { + return map_error_impl(*this, std::forward(f)); + } + template + TL_EXPECTED_11_CONSTEXPR auto map_error(F &&f) && { + return map_error_impl(std::move(*this), std::forward(f)); + } + template + constexpr auto map_error(F &&f) const & { + return map_error_impl(*this, std::forward(f)); + } + template + constexpr auto map_error(F &&f) const && { + return map_error_impl(std::move(*this), std::forward(f)); + } +#else + template + TL_EXPECTED_11_CONSTEXPR decltype(map_error_impl(std::declval(), + std::declval())) + map_error(F &&f) & { + return map_error_impl(*this, std::forward(f)); + } + template + TL_EXPECTED_11_CONSTEXPR decltype(map_error_impl(std::declval(), + std::declval())) + map_error(F &&f) && { + return map_error_impl(std::move(*this), std::forward(f)); + } + template + constexpr decltype(map_error_impl(std::declval(), + std::declval())) + map_error(F &&f) const & { + return map_error_impl(*this, std::forward(f)); + } + +#ifndef TL_EXPECTED_NO_CONSTRR + template + constexpr decltype(map_error_impl(std::declval(), + std::declval())) + map_error(F &&f) const && { + return map_error_impl(std::move(*this), std::forward(f)); + } +#endif +#endif +#if defined(TL_EXPECTED_CXX14) && !defined(TL_EXPECTED_GCC49) && \ + !defined(TL_EXPECTED_GCC54) && !defined(TL_EXPECTED_GCC55) + template + TL_EXPECTED_11_CONSTEXPR auto transform_error(F &&f) & { + return map_error_impl(*this, std::forward(f)); + } + template + TL_EXPECTED_11_CONSTEXPR auto transform_error(F &&f) && { + return map_error_impl(std::move(*this), std::forward(f)); + } + template + constexpr auto transform_error(F &&f) const & { + return map_error_impl(*this, std::forward(f)); + } + template + constexpr auto transform_error(F &&f) const && { + return map_error_impl(std::move(*this), std::forward(f)); + } +#else + template + TL_EXPECTED_11_CONSTEXPR decltype(map_error_impl(std::declval(), + std::declval())) + transform_error(F &&f) & { + return map_error_impl(*this, std::forward(f)); + } + template + TL_EXPECTED_11_CONSTEXPR decltype(map_error_impl(std::declval(), + std::declval())) + transform_error(F &&f) && { + return map_error_impl(std::move(*this), std::forward(f)); + } + template + constexpr decltype(map_error_impl(std::declval(), + std::declval())) + transform_error(F &&f) const & { + return map_error_impl(*this, std::forward(f)); + } + +#ifndef TL_EXPECTED_NO_CONSTRR + template + constexpr decltype(map_error_impl(std::declval(), + std::declval())) + transform_error(F &&f) const && { + return map_error_impl(std::move(*this), std::forward(f)); + } +#endif +#endif + template + expected TL_EXPECTED_11_CONSTEXPR or_else(F &&f) & { + return or_else_impl(*this, std::forward(f)); + } + + template + expected TL_EXPECTED_11_CONSTEXPR or_else(F &&f) && { + return or_else_impl(std::move(*this), std::forward(f)); + } + + template + expected constexpr or_else(F &&f) const & { + return or_else_impl(*this, std::forward(f)); + } + +#ifndef TL_EXPECTED_NO_CONSTRR + template + expected constexpr or_else(F &&f) const && { + return or_else_impl(std::move(*this), std::forward(f)); + } +#endif + constexpr expected() = default; + constexpr expected(const expected &rhs) = default; + constexpr expected(expected &&rhs) = default; + expected &operator=(const expected &rhs) = default; + expected &operator=(expected &&rhs) = default; + + template ::value> * = + nullptr> + constexpr expected(in_place_t, Args &&...args) + : impl_base(in_place, std::forward(args)...), + ctor_base(detail::default_constructor_tag{}) {} + + template &, Args &&...>::value> * = nullptr> + constexpr expected(in_place_t, std::initializer_list il, Args &&...args) + : impl_base(in_place, il, std::forward(args)...), + ctor_base(detail::default_constructor_tag{}) {} + + template ::value> * = + nullptr, + detail::enable_if_t::value> * = + nullptr> + explicit constexpr expected(const unexpected &e) + : impl_base(unexpect, e.value()), + ctor_base(detail::default_constructor_tag{}) {} + + template < + class G = E, + detail::enable_if_t::value> * = + nullptr, + detail::enable_if_t::value> * = nullptr> + constexpr expected(unexpected const &e) + : impl_base(unexpect, e.value()), + ctor_base(detail::default_constructor_tag{}) {} + + template < + class G = E, + detail::enable_if_t::value> * = nullptr, + detail::enable_if_t::value> * = nullptr> + explicit constexpr expected(unexpected &&e) noexcept( + std::is_nothrow_constructible::value) + : impl_base(unexpect, std::move(e.value())), + ctor_base(detail::default_constructor_tag{}) {} + + template < + class G = E, + detail::enable_if_t::value> * = nullptr, + detail::enable_if_t::value> * = nullptr> + constexpr expected(unexpected &&e) noexcept( + std::is_nothrow_constructible::value) + : impl_base(unexpect, std::move(e.value())), + ctor_base(detail::default_constructor_tag{}) {} + + template ::value> * = + nullptr> + constexpr explicit expected(unexpect_t, Args &&...args) + : impl_base(unexpect, std::forward(args)...), + ctor_base(detail::default_constructor_tag{}) {} + + template &, Args &&...>::value> * = nullptr> + constexpr explicit expected(unexpect_t, std::initializer_list il, + Args &&...args) + : impl_base(unexpect, il, std::forward(args)...), + ctor_base(detail::default_constructor_tag{}) {} + + template ::value && + std::is_convertible::value)> * = + nullptr, + detail::expected_enable_from_other + * = nullptr> + explicit TL_EXPECTED_11_CONSTEXPR expected(const expected &rhs) + : ctor_base(detail::default_constructor_tag{}) { + if (rhs.has_value()) { + this->construct(*rhs); + } else { + this->construct_error(rhs.error()); + } + } + + template ::value && + std::is_convertible::value)> * = + nullptr, + detail::expected_enable_from_other + * = nullptr> + TL_EXPECTED_11_CONSTEXPR expected(const expected &rhs) + : ctor_base(detail::default_constructor_tag{}) { + if (rhs.has_value()) { + this->construct(*rhs); + } else { + this->construct_error(rhs.error()); + } + } + + template < + class U, class G, + detail::enable_if_t::value && + std::is_convertible::value)> * = nullptr, + detail::expected_enable_from_other * = nullptr> + explicit TL_EXPECTED_11_CONSTEXPR expected(expected &&rhs) + : ctor_base(detail::default_constructor_tag{}) { + if (rhs.has_value()) { + this->construct(std::move(*rhs)); + } else { + this->construct_error(std::move(rhs.error())); + } + } + + template < + class U, class G, + detail::enable_if_t<(std::is_convertible::value && + std::is_convertible::value)> * = nullptr, + detail::expected_enable_from_other * = nullptr> + TL_EXPECTED_11_CONSTEXPR expected(expected &&rhs) + : ctor_base(detail::default_constructor_tag{}) { + if (rhs.has_value()) { + this->construct(std::move(*rhs)); + } else { + this->construct_error(std::move(rhs.error())); + } + } + + template < + class U = T, + detail::enable_if_t::value> * = nullptr, + detail::expected_enable_forward_value * = nullptr> + explicit TL_EXPECTED_MSVC2015_CONSTEXPR expected(U &&v) + : expected(in_place, std::forward(v)) {} + + template < + class U = T, + detail::enable_if_t::value> * = nullptr, + detail::expected_enable_forward_value * = nullptr> + TL_EXPECTED_MSVC2015_CONSTEXPR expected(U &&v) + : expected(in_place, std::forward(v)) {} + + template < + class U = T, class G = T, + detail::enable_if_t::value> * = + nullptr, + detail::enable_if_t::value> * = nullptr, + detail::enable_if_t< + (!std::is_same, detail::decay_t>::value && + !detail::conjunction, + std::is_same>>::value && + std::is_constructible::value && + std::is_assignable::value && + std::is_nothrow_move_constructible::value)> * = nullptr> + expected &operator=(U &&v) { + if (has_value()) { + val() = std::forward(v); + } else { + err().~unexpected(); + ::new (valptr()) T(std::forward(v)); + this->m_has_val = true; + } + + return *this; + } + + template < + class U = T, class G = T, + detail::enable_if_t::value> * = + nullptr, + detail::enable_if_t::value> * = nullptr, + detail::enable_if_t< + (!std::is_same, detail::decay_t>::value && + !detail::conjunction, + std::is_same>>::value && + std::is_constructible::value && + std::is_assignable::value && + std::is_nothrow_move_constructible::value)> * = nullptr> + expected &operator=(U &&v) { + if (has_value()) { + val() = std::forward(v); + } else { + auto tmp = std::move(err()); + err().~unexpected(); + +#ifdef TL_EXPECTED_EXCEPTIONS_ENABLED + try { + ::new (valptr()) T(std::forward(v)); + this->m_has_val = true; + } catch (...) { + err() = std::move(tmp); + throw; + } +#else + ::new (valptr()) T(std::forward(v)); + this->m_has_val = true; +#endif + } + + return *this; + } + + template ::value && + std::is_assignable::value> * = nullptr> + expected &operator=(const unexpected &rhs) { + if (!has_value()) { + err() = rhs; + } else { + this->destroy_val(); + ::new (errptr()) unexpected(rhs); + this->m_has_val = false; + } + + return *this; + } + + template ::value && + std::is_move_assignable::value> * = nullptr> + expected &operator=(unexpected &&rhs) noexcept { + if (!has_value()) { + err() = std::move(rhs); + } else { + this->destroy_val(); + ::new (errptr()) unexpected(std::move(rhs)); + this->m_has_val = false; + } + + return *this; + } + + template ::value> * = nullptr> + void emplace(Args &&...args) { + if (has_value()) { + val().~T(); + } else { + err().~unexpected(); + this->m_has_val = true; + } + ::new (valptr()) T(std::forward(args)...); + } + + template ::value> * = nullptr> + void emplace(Args &&...args) { + if (has_value()) { + val().~T(); + ::new (valptr()) T(std::forward(args)...); + } else { + auto tmp = std::move(err()); + err().~unexpected(); + +#ifdef TL_EXPECTED_EXCEPTIONS_ENABLED + try { + ::new (valptr()) T(std::forward(args)...); + this->m_has_val = true; + } catch (...) { + err() = std::move(tmp); + throw; + } +#else + ::new (valptr()) T(std::forward(args)...); + this->m_has_val = true; +#endif + } + } + + template &, Args &&...>::value> * = nullptr> + void emplace(std::initializer_list il, Args &&...args) { + if (has_value()) { + T t(il, std::forward(args)...); + val() = std::move(t); + } else { + err().~unexpected(); + ::new (valptr()) T(il, std::forward(args)...); + this->m_has_val = true; + } + } + + template &, Args &&...>::value> * = nullptr> + void emplace(std::initializer_list il, Args &&...args) { + if (has_value()) { + T t(il, std::forward(args)...); + val() = std::move(t); + } else { + auto tmp = std::move(err()); + err().~unexpected(); + +#ifdef TL_EXPECTED_EXCEPTIONS_ENABLED + try { + ::new (valptr()) T(il, std::forward(args)...); + this->m_has_val = true; + } catch (...) { + err() = std::move(tmp); + throw; + } +#else + ::new (valptr()) T(il, std::forward(args)...); + this->m_has_val = true; +#endif + } + } + + private: + using t_is_void = std::true_type; + using t_is_not_void = std::false_type; + using t_is_nothrow_move_constructible = std::true_type; + using move_constructing_t_can_throw = std::false_type; + using e_is_nothrow_move_constructible = std::true_type; + using move_constructing_e_can_throw = std::false_type; + + void swap_where_both_have_value(expected & /*rhs*/, t_is_void) noexcept { + // swapping void is a no-op + } + + void swap_where_both_have_value(expected &rhs, t_is_not_void) { + using std::swap; + swap(val(), rhs.val()); + } + + void swap_where_only_one_has_value(expected &rhs, t_is_void) noexcept( + std::is_nothrow_move_constructible::value) { + ::new (errptr()) unexpected_type(std::move(rhs.err())); + rhs.err().~unexpected_type(); + std::swap(this->m_has_val, rhs.m_has_val); + } + + void swap_where_only_one_has_value(expected &rhs, t_is_not_void) { + swap_where_only_one_has_value_and_t_is_not_void( + rhs, typename std::is_nothrow_move_constructible::type{}, + typename std::is_nothrow_move_constructible::type{}); + } + + void swap_where_only_one_has_value_and_t_is_not_void( + expected &rhs, t_is_nothrow_move_constructible, + e_is_nothrow_move_constructible) noexcept { + auto temp = std::move(val()); + val().~T(); + ::new (errptr()) unexpected_type(std::move(rhs.err())); + rhs.err().~unexpected_type(); + ::new (rhs.valptr()) T(std::move(temp)); + std::swap(this->m_has_val, rhs.m_has_val); + } + + void swap_where_only_one_has_value_and_t_is_not_void( + expected &rhs, t_is_nothrow_move_constructible, + move_constructing_e_can_throw) { + auto temp = std::move(val()); + val().~T(); +#ifdef TL_EXPECTED_EXCEPTIONS_ENABLED + try { + ::new (errptr()) unexpected_type(std::move(rhs.err())); + rhs.err().~unexpected_type(); + ::new (rhs.valptr()) T(std::move(temp)); + std::swap(this->m_has_val, rhs.m_has_val); + } catch (...) { + val() = std::move(temp); + throw; + } +#else + ::new (errptr()) unexpected_type(std::move(rhs.err())); + rhs.err().~unexpected_type(); + ::new (rhs.valptr()) T(std::move(temp)); + std::swap(this->m_has_val, rhs.m_has_val); +#endif + } + + void swap_where_only_one_has_value_and_t_is_not_void( + expected &rhs, move_constructing_t_can_throw, + e_is_nothrow_move_constructible) { + auto temp = std::move(rhs.err()); + rhs.err().~unexpected_type(); +#ifdef TL_EXPECTED_EXCEPTIONS_ENABLED + try { + ::new (rhs.valptr()) T(std::move(val())); + val().~T(); + ::new (errptr()) unexpected_type(std::move(temp)); + std::swap(this->m_has_val, rhs.m_has_val); + } catch (...) { + rhs.err() = std::move(temp); + throw; + } +#else + ::new (rhs.valptr()) T(std::move(val())); + val().~T(); + ::new (errptr()) unexpected_type(std::move(temp)); + std::swap(this->m_has_val, rhs.m_has_val); +#endif + } + + public: + template + detail::enable_if_t::value && + detail::is_swappable::value && + (std::is_nothrow_move_constructible::value || + std::is_nothrow_move_constructible::value)> + swap(expected &rhs) noexcept( + std::is_nothrow_move_constructible::value + &&detail::is_nothrow_swappable::value + &&std::is_nothrow_move_constructible::value + &&detail::is_nothrow_swappable::value) { + if (has_value() && rhs.has_value()) { + swap_where_both_have_value(rhs, typename std::is_void::type{}); + } else if (!has_value() && rhs.has_value()) { + rhs.swap(*this); + } else if (has_value()) { + swap_where_only_one_has_value(rhs, typename std::is_void::type{}); + } else { + using std::swap; + swap(err(), rhs.err()); + } + } + + constexpr const T *operator->() const { + TL_ASSERT(has_value()); + return valptr(); + } + TL_EXPECTED_11_CONSTEXPR T *operator->() { + TL_ASSERT(has_value()); + return valptr(); + } + + template ::value> * = nullptr> + constexpr const U &operator*() const & { + TL_ASSERT(has_value()); + return val(); + } + template ::value> * = nullptr> + TL_EXPECTED_11_CONSTEXPR U &operator*() & { + TL_ASSERT(has_value()); + return val(); + } + template ::value> * = nullptr> + constexpr const U &&operator*() const && { + TL_ASSERT(has_value()); + return std::move(val()); + } + template ::value> * = nullptr> + TL_EXPECTED_11_CONSTEXPR U &&operator*() && { + TL_ASSERT(has_value()); + return std::move(val()); + } + + constexpr bool has_value() const noexcept { return this->m_has_val; } + constexpr explicit operator bool() const noexcept { return this->m_has_val; } + + template ::value> * = nullptr> + TL_EXPECTED_11_CONSTEXPR const U &value() const & { + if (!has_value()) + detail::throw_exception(bad_expected_access(err().value())); + return val(); + } + template ::value> * = nullptr> + TL_EXPECTED_11_CONSTEXPR U &value() & { + if (!has_value()) + detail::throw_exception(bad_expected_access(err().value())); + return val(); + } + template ::value> * = nullptr> + TL_EXPECTED_11_CONSTEXPR const U &&value() const && { + if (!has_value()) + detail::throw_exception(bad_expected_access(std::move(err()).value())); + return std::move(val()); + } + template ::value> * = nullptr> + TL_EXPECTED_11_CONSTEXPR U &&value() && { + if (!has_value()) + detail::throw_exception(bad_expected_access(std::move(err()).value())); + return std::move(val()); + } + + constexpr const E &error() const & { + TL_ASSERT(!has_value()); + return err().value(); + } + TL_EXPECTED_11_CONSTEXPR E &error() & { + TL_ASSERT(!has_value()); + return err().value(); + } + constexpr const E &&error() const && { + TL_ASSERT(!has_value()); + return std::move(err().value()); + } + TL_EXPECTED_11_CONSTEXPR E &&error() && { + TL_ASSERT(!has_value()); + return std::move(err().value()); + } + + template + constexpr T value_or(U &&v) const & { + static_assert(std::is_copy_constructible::value && + std::is_convertible::value, + "T must be copy-constructible and convertible to from U&&"); + return bool(*this) ? **this : static_cast(std::forward(v)); + } + template + TL_EXPECTED_11_CONSTEXPR T value_or(U &&v) && { + static_assert(std::is_move_constructible::value && + std::is_convertible::value, + "T must be move-constructible and convertible to from U&&"); + return bool(*this) ? std::move(**this) : static_cast(std::forward(v)); + } +}; + +namespace detail { +template +using exp_t = typename detail::decay_t::value_type; +template +using err_t = typename detail::decay_t::error_type; +template +using ret_t = expected>; + +#ifdef TL_EXPECTED_CXX14 +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval(), + *std::declval()))> +constexpr auto and_then_impl(Exp &&exp, F &&f) { + static_assert(detail::is_expected::value, "F must return an expected"); + + return exp.has_value() + ? detail::invoke(std::forward(f), *std::forward(exp)) + : Ret(unexpect, std::forward(exp).error()); +} + +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval()))> +constexpr auto and_then_impl(Exp &&exp, F &&f) { + static_assert(detail::is_expected::value, "F must return an expected"); + + return exp.has_value() ? detail::invoke(std::forward(f)) + : Ret(unexpect, std::forward(exp).error()); +} +#else +template +struct TC; +template (), + *std::declval())), + detail::enable_if_t>::value> * = nullptr> +auto and_then_impl(Exp &&exp, F &&f) -> Ret { + static_assert(detail::is_expected::value, "F must return an expected"); + + return exp.has_value() + ? detail::invoke(std::forward(f), *std::forward(exp)) + : Ret(unexpect, std::forward(exp).error()); +} + +template ())), + detail::enable_if_t>::value> * = nullptr> +constexpr auto and_then_impl(Exp &&exp, F &&f) -> Ret { + static_assert(detail::is_expected::value, "F must return an expected"); + + return exp.has_value() ? detail::invoke(std::forward(f)) + : Ret(unexpect, std::forward(exp).error()); +} +#endif + +#ifdef TL_EXPECTED_CXX14 +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval(), + *std::declval())), + detail::enable_if_t::value> * = nullptr> +constexpr auto expected_map_impl(Exp &&exp, F &&f) { + using result = ret_t>; + return exp.has_value() ? result(detail::invoke(std::forward(f), + *std::forward(exp))) + : result(unexpect, std::forward(exp).error()); +} + +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval(), + *std::declval())), + detail::enable_if_t::value> * = nullptr> +auto expected_map_impl(Exp &&exp, F &&f) { + using result = expected>; + if (exp.has_value()) { + detail::invoke(std::forward(f), *std::forward(exp)); + return result(); + } + + return result(unexpect, std::forward(exp).error()); +} + +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval())), + detail::enable_if_t::value> * = nullptr> +constexpr auto expected_map_impl(Exp &&exp, F &&f) { + using result = ret_t>; + return exp.has_value() ? result(detail::invoke(std::forward(f))) + : result(unexpect, std::forward(exp).error()); +} + +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval())), + detail::enable_if_t::value> * = nullptr> +auto expected_map_impl(Exp &&exp, F &&f) { + using result = expected>; + if (exp.has_value()) { + detail::invoke(std::forward(f)); + return result(); + } + + return result(unexpect, std::forward(exp).error()); +} +#else +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval(), + *std::declval())), + detail::enable_if_t::value> * = nullptr> + +constexpr auto expected_map_impl(Exp &&exp, F &&f) + -> ret_t> { + using result = ret_t>; + + return exp.has_value() ? result(detail::invoke(std::forward(f), + *std::forward(exp))) + : result(unexpect, std::forward(exp).error()); +} + +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval(), + *std::declval())), + detail::enable_if_t::value> * = nullptr> + +auto expected_map_impl(Exp &&exp, F &&f) -> expected> { + if (exp.has_value()) { + detail::invoke(std::forward(f), *std::forward(exp)); + return {}; + } + + return unexpected>(std::forward(exp).error()); +} + +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval())), + detail::enable_if_t::value> * = nullptr> + +constexpr auto expected_map_impl(Exp &&exp, F &&f) + -> ret_t> { + using result = ret_t>; + + return exp.has_value() ? result(detail::invoke(std::forward(f))) + : result(unexpect, std::forward(exp).error()); +} + +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval())), + detail::enable_if_t::value> * = nullptr> + +auto expected_map_impl(Exp &&exp, F &&f) -> expected> { + if (exp.has_value()) { + detail::invoke(std::forward(f)); + return {}; + } + + return unexpected>(std::forward(exp).error()); +} +#endif + +#if defined(TL_EXPECTED_CXX14) && !defined(TL_EXPECTED_GCC49) && \ + !defined(TL_EXPECTED_GCC54) && !defined(TL_EXPECTED_GCC55) +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval(), + std::declval().error())), + detail::enable_if_t::value> * = nullptr> +constexpr auto map_error_impl(Exp &&exp, F &&f) { + using result = expected, detail::decay_t>; + return exp.has_value() + ? result(*std::forward(exp)) + : result(unexpect, detail::invoke(std::forward(f), + std::forward(exp).error())); +} +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval(), + std::declval().error())), + detail::enable_if_t::value> * = nullptr> +auto map_error_impl(Exp &&exp, F &&f) { + using result = expected, monostate>; + if (exp.has_value()) { + return result(*std::forward(exp)); + } + + detail::invoke(std::forward(f), std::forward(exp).error()); + return result(unexpect, monostate{}); +} +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval(), + std::declval().error())), + detail::enable_if_t::value> * = nullptr> +constexpr auto map_error_impl(Exp &&exp, F &&f) { + using result = expected, detail::decay_t>; + return exp.has_value() + ? result() + : result(unexpect, detail::invoke(std::forward(f), + std::forward(exp).error())); +} +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval(), + std::declval().error())), + detail::enable_if_t::value> * = nullptr> +auto map_error_impl(Exp &&exp, F &&f) { + using result = expected, monostate>; + if (exp.has_value()) { + return result(); + } + + detail::invoke(std::forward(f), std::forward(exp).error()); + return result(unexpect, monostate{}); +} +#else +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval(), + std::declval().error())), + detail::enable_if_t::value> * = nullptr> +constexpr auto map_error_impl(Exp &&exp, F &&f) + -> expected, detail::decay_t> { + using result = expected, detail::decay_t>; + + return exp.has_value() + ? result(*std::forward(exp)) + : result(unexpect, detail::invoke(std::forward(f), + std::forward(exp).error())); +} + +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval(), + std::declval().error())), + detail::enable_if_t::value> * = nullptr> +auto map_error_impl(Exp &&exp, F &&f) -> expected, monostate> { + using result = expected, monostate>; + if (exp.has_value()) { + return result(*std::forward(exp)); + } + + detail::invoke(std::forward(f), std::forward(exp).error()); + return result(unexpect, monostate{}); +} + +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval(), + std::declval().error())), + detail::enable_if_t::value> * = nullptr> +constexpr auto map_error_impl(Exp &&exp, F &&f) + -> expected, detail::decay_t> { + using result = expected, detail::decay_t>; + + return exp.has_value() + ? result() + : result(unexpect, detail::invoke(std::forward(f), + std::forward(exp).error())); +} + +template >::value> * = nullptr, + class Ret = decltype(detail::invoke(std::declval(), + std::declval().error())), + detail::enable_if_t::value> * = nullptr> +auto map_error_impl(Exp &&exp, F &&f) -> expected, monostate> { + using result = expected, monostate>; + if (exp.has_value()) { + return result(); + } + + detail::invoke(std::forward(f), std::forward(exp).error()); + return result(unexpect, monostate{}); +} +#endif + +#ifdef TL_EXPECTED_CXX14 +template (), + std::declval().error())), + detail::enable_if_t::value> * = nullptr> +constexpr auto or_else_impl(Exp &&exp, F &&f) { + static_assert(detail::is_expected::value, "F must return an expected"); + return exp.has_value() ? std::forward(exp) + : detail::invoke(std::forward(f), + std::forward(exp).error()); +} + +template (), + std::declval().error())), + detail::enable_if_t::value> * = nullptr> +detail::decay_t or_else_impl(Exp &&exp, F &&f) { + return exp.has_value() ? std::forward(exp) + : (detail::invoke(std::forward(f), + std::forward(exp).error()), + std::forward(exp)); +} +#else +template (), + std::declval().error())), + detail::enable_if_t::value> * = nullptr> +auto or_else_impl(Exp &&exp, F &&f) -> Ret { + static_assert(detail::is_expected::value, "F must return an expected"); + return exp.has_value() ? std::forward(exp) + : detail::invoke(std::forward(f), + std::forward(exp).error()); +} + +template (), + std::declval().error())), + detail::enable_if_t::value> * = nullptr> +detail::decay_t or_else_impl(Exp &&exp, F &&f) { + return exp.has_value() ? std::forward(exp) + : (detail::invoke(std::forward(f), + std::forward(exp).error()), + std::forward(exp)); +} +#endif +} // namespace detail + +template +constexpr bool operator==(const expected &lhs, + const expected &rhs) { + return (lhs.has_value() != rhs.has_value()) + ? false + : (!lhs.has_value() ? lhs.error() == rhs.error() : *lhs == *rhs); +} +template +constexpr bool operator!=(const expected &lhs, + const expected &rhs) { + return (lhs.has_value() != rhs.has_value()) + ? true + : (!lhs.has_value() ? lhs.error() != rhs.error() : *lhs != *rhs); +} +template +constexpr bool operator==(const expected &lhs, + const expected &rhs) { + return (lhs.has_value() != rhs.has_value()) + ? false + : (!lhs.has_value() ? lhs.error() == rhs.error() : true); +} +template +constexpr bool operator!=(const expected &lhs, + const expected &rhs) { + return (lhs.has_value() != rhs.has_value()) + ? true + : (!lhs.has_value() ? lhs.error() == rhs.error() : false); +} + +template +constexpr bool operator==(const expected &x, const U &v) { + return x.has_value() ? *x == v : false; +} +template +constexpr bool operator==(const U &v, const expected &x) { + return x.has_value() ? *x == v : false; +} +template +constexpr bool operator!=(const expected &x, const U &v) { + return x.has_value() ? *x != v : true; +} +template +constexpr bool operator!=(const U &v, const expected &x) { + return x.has_value() ? *x != v : true; +} + +template +constexpr bool operator==(const expected &x, const unexpected &e) { + return x.has_value() ? false : x.error() == e.value(); +} +template +constexpr bool operator==(const unexpected &e, const expected &x) { + return x.has_value() ? false : x.error() == e.value(); +} +template +constexpr bool operator!=(const expected &x, const unexpected &e) { + return x.has_value() ? true : x.error() != e.value(); +} +template +constexpr bool operator!=(const unexpected &e, const expected &x) { + return x.has_value() ? true : x.error() != e.value(); +} + +template ::value || + std::is_move_constructible::value) && + detail::is_swappable::value && + std::is_move_constructible::value && + detail::is_swappable::value> * = nullptr> +void swap(expected &lhs, + expected &rhs) noexcept(noexcept(lhs.swap(rhs))) { + lhs.swap(rhs); +} +} // namespace tl + +#endif +/* end file include/ada/expected.h */ + +#include +#include + +/** + * @private + */ +namespace ada { +struct url_aggregator; +struct url; +} // namespace ada + +/** + * @namespace ada::parser + * @brief Includes the definitions for supported parsers + */ +namespace ada::parser { + +/** + * Parses a url. + */ +template +result_type parse_url(std::string_view user_input, + const result_type* base_url = nullptr); + +extern template url_aggregator parse_url( + std::string_view user_input, const url_aggregator* base_url); +extern template url parse_url(std::string_view user_input, + const url* base_url); + +} // namespace ada::parser + +#endif // ADA_PARSER_H +/* end file include/ada/parser.h */ +/* begin file include/ada/scheme-inl.h */ +/** + * @file scheme-inl.h + * @brief Definitions for the URL scheme. + */ +#ifndef ADA_SCHEME_INL_H +#define ADA_SCHEME_INL_H + + +namespace ada::scheme { + +/** + * @namespace ada::scheme::details + * @brief Includes the definitions for scheme specific entities + */ +namespace details { +// for use with is_special and get_special_port +// Spaces, if present, are removed from URL. +constexpr std::string_view is_special_list[] = {"http", " ", "https", "ws", + "ftp", "wss", "file", " "}; +// for use with get_special_port +constexpr uint16_t special_ports[] = {80, 0, 443, 80, 21, 443, 0, 0}; +} // namespace details + +ada_really_inline constexpr bool is_special(std::string_view scheme) { + if (scheme.empty()) { + return false; + } + int hash_value = (2 * scheme.size() + (unsigned)(scheme[0])) & 7; + const std::string_view target = details::is_special_list[hash_value]; + return (target[0] == scheme[0]) && (target.substr(1) == scheme.substr(1)); +} +constexpr uint16_t get_special_port(std::string_view scheme) noexcept { + if (scheme.empty()) { + return 0; + } + int hash_value = (2 * scheme.size() + (unsigned)(scheme[0])) & 7; + const std::string_view target = details::is_special_list[hash_value]; + if ((target[0] == scheme[0]) && (target.substr(1) == scheme.substr(1))) { + return details::special_ports[hash_value]; + } else { + return 0; + } +} +constexpr uint16_t get_special_port(ada::scheme::type type) noexcept { + return details::special_ports[int(type)]; +} +constexpr ada::scheme::type get_scheme_type(std::string_view scheme) noexcept { + if (scheme.empty()) { + return ada::scheme::NOT_SPECIAL; + } + int hash_value = (2 * scheme.size() + (unsigned)(scheme[0])) & 7; + const std::string_view target = details::is_special_list[hash_value]; + if ((target[0] == scheme[0]) && (target.substr(1) == scheme.substr(1))) { + return ada::scheme::type(hash_value); + } else { + return ada::scheme::NOT_SPECIAL; + } +} + +} // namespace ada::scheme + +#endif // ADA_SCHEME_INL_H +/* end file include/ada/scheme-inl.h */ +/* begin file include/ada/serializers.h */ +/** + * @file serializers.h + * @brief Definitions for the URL serializers. + */ +#ifndef ADA_SERIALIZERS_H +#define ADA_SERIALIZERS_H + + +#include +#include +#include + +/** + * @namespace ada::serializers + * @brief Includes the definitions for URL serializers + */ +namespace ada::serializers { + +/** + * Finds and returns the longest sequence of 0 values in a ipv6 input. + */ +void find_longest_sequence_of_ipv6_pieces( + const std::array& address, size_t& compress, + size_t& compress_length) noexcept; + +/** + * Serializes an ipv6 address. + * @details An IPv6 address is a 128-bit unsigned integer that identifies a + * network address. + * @see https://url.spec.whatwg.org/#concept-ipv6-serializer + */ +std::string ipv6(const std::array& address) noexcept; + +/** + * Serializes an ipv4 address. + * @details An IPv4 address is a 32-bit unsigned integer that identifies a + * network address. + * @see https://url.spec.whatwg.org/#concept-ipv4-serializer + */ +std::string ipv4(uint64_t address) noexcept; + +} // namespace ada::serializers + +#endif // ADA_SERIALIZERS_H +/* end file include/ada/serializers.h */ +/* begin file include/ada/unicode.h */ +/** + * @file unicode.h + * @brief Definitions for all unicode specific functions. + */ +#ifndef ADA_UNICODE_H +#define ADA_UNICODE_H + + +#include +#include + +/** + * @namespace ada::unicode + * @brief Includes the definitions for unicode operations + */ +namespace ada::unicode { + +/** + * We receive a UTF-8 string representing a domain name. + * If the string is percent encoded, we apply percent decoding. + * + * Given a domain, we need to identify its labels. + * They are separated by label-separators: + * + * U+002E (.) FULL STOP + * U+FF0E FULLWIDTH FULL STOP + * U+3002 IDEOGRAPHIC FULL STOP + * U+FF61 HALFWIDTH IDEOGRAPHIC FULL STOP + * + * They are all mapped to U+002E. + * + * We process each label into a string that should not exceed 63 octets. + * If the string is already punycode (starts with "xn--"), then we must + * scan it to look for unallowed code points. + * Otherwise, if the string is not pure ASCII, we need to transcode it + * to punycode by following RFC 3454 which requires us to + * - Map characters (see section 3), + * - Normalize (see section 4), + * - Reject forbidden characters, + * - Check for right-to-left characters and if so, check all requirements (see + * section 6), + * - Optionally reject based on unassigned code points (section 7). + * + * The Unicode standard provides a table of code points with a mapping, a list + * of forbidden code points and so forth. This table is subject to change and + * will vary based on the implementation. For Unicode 15, the table is at + * https://www.unicode.org/Public/idna/15.0.0/IdnaMappingTable.txt + * If you use ICU, they parse this table and map it to code using a Python + * script. + * + * The resulting strings should not exceed 255 octets according to RFC 1035 + * section 2.3.4. ICU checks for label size and domain size, but these errors + * are ignored. + * + * @see https://url.spec.whatwg.org/#concept-domain-to-ascii + * + */ +bool to_ascii(std::optional& out, std::string_view plain, + size_t first_percent); + +/** + * @see https://www.unicode.org/reports/tr46/#ToUnicode + */ +std::string to_unicode(std::string_view input); + +/** + * Checks if the input has tab or newline characters. + * + * @attention The has_tabs_or_newline function is a bottleneck and it is simple + * enough that compilers like GCC can 'autovectorize it'. + */ +ada_really_inline bool has_tabs_or_newline( + std::string_view user_input) noexcept; + +/** + * Checks if the input is a forbidden host code point. + * @see https://url.spec.whatwg.org/#forbidden-host-code-point + */ +ada_really_inline constexpr bool is_forbidden_host_code_point(char c) noexcept; + +/** + * Checks if the input contains a forbidden domain code point. + * @see https://url.spec.whatwg.org/#forbidden-domain-code-point + */ +ada_really_inline constexpr bool contains_forbidden_domain_code_point( + const char* input, size_t length) noexcept; + +/** + * Checks if the input contains a forbidden domain code point in which case + * the first bit is set to 1. If the input contains an upper case ASCII letter, + * then the second bit is set to 1. + * @see https://url.spec.whatwg.org/#forbidden-domain-code-point + */ +ada_really_inline constexpr uint8_t +contains_forbidden_domain_code_point_or_upper(const char* input, + size_t length) noexcept; + +/** + * Checks if the input is a forbidden domain code point. + * @see https://url.spec.whatwg.org/#forbidden-domain-code-point + */ +ada_really_inline constexpr bool is_forbidden_domain_code_point( + char c) noexcept; + +/** + * Checks if the input is alphanumeric, '+', '-' or '.' + */ +ada_really_inline constexpr bool is_alnum_plus(char c) noexcept; + +/** + * @details An ASCII hex digit is an ASCII upper hex digit or ASCII lower hex + * digit. An ASCII upper hex digit is an ASCII digit or a code point in the + * range U+0041 (A) to U+0046 (F), inclusive. An ASCII lower hex digit is an + * ASCII digit or a code point in the range U+0061 (a) to U+0066 (f), inclusive. + */ +ada_really_inline constexpr bool is_ascii_hex_digit(char c) noexcept; + +/** + * Checks if the input is a C0 control or space character. + * + * @details A C0 control or space is a C0 control or U+0020 SPACE. + * A C0 control is a code point in the range U+0000 NULL to U+001F INFORMATION + * SEPARATOR ONE, inclusive. + */ +ada_really_inline constexpr bool is_c0_control_or_space(char c) noexcept; + +/** + * Checks if the input is a ASCII tab or newline character. + * + * @details An ASCII tab or newline is U+0009 TAB, U+000A LF, or U+000D CR. + */ +ada_really_inline constexpr bool is_ascii_tab_or_newline(char c) noexcept; + +/** + * @details A double-dot path segment must be ".." or an ASCII case-insensitive + * match for ".%2e", "%2e.", or "%2e%2e". + */ +ada_really_inline ada_constexpr bool is_double_dot_path_segment( + std::string_view input) noexcept; + +/** + * @details A single-dot path segment must be "." or an ASCII case-insensitive + * match for "%2e". + */ +ada_really_inline constexpr bool is_single_dot_path_segment( + std::string_view input) noexcept; + +/** + * @details ipv4 character might contain 0-9 or a-f character ranges. + */ +ada_really_inline constexpr bool is_lowercase_hex(char c) noexcept; + +/** + * @details Convert hex to binary. Caller is responsible to ensure that + * the parameter is an hexadecimal digit (0-9, A-F, a-f). + */ +ada_really_inline unsigned constexpr convert_hex_to_binary(char c) noexcept; + +/** + * first_percent should be = input.find('%') + * + * @todo It would be faster as noexcept maybe, but it could be unsafe since. + * @author Node.js + * @see https://github.com/nodejs/node/blob/main/src/node_url.cc#L245 + * @see https://encoding.spec.whatwg.org/#utf-8-decode-without-bom + */ +std::string percent_decode(std::string_view input, size_t first_percent); + +/** + * Returns a percent-encoding string whether percent encoding was needed or not. + * @see https://github.com/nodejs/node/blob/main/src/node_url.cc#L226 + */ +std::string percent_encode(std::string_view input, + const uint8_t character_set[]); +/** + * Returns a percent-encoded string version of input, while starting the percent + * encoding at the provided index. + * @see https://github.com/nodejs/node/blob/main/src/node_url.cc#L226 + */ +std::string percent_encode(std::string_view input, + const uint8_t character_set[], size_t index); +/** + * Returns true if percent encoding was needed, in which case, we store + * the percent-encoded content in 'out'. If the boolean 'append' is set to + * true, the content is appended to 'out'. + * If percent encoding is not needed, out is left unchanged. + * @see https://github.com/nodejs/node/blob/main/src/node_url.cc#L226 + */ +template +bool percent_encode(std::string_view input, const uint8_t character_set[], + std::string& out); +/** + * Returns the index at which percent encoding should start, or (equivalently), + * the length of the prefix that does not require percent encoding. + */ +ada_really_inline size_t percent_encode_index(std::string_view input, + const uint8_t character_set[]); +/** + * Lowers the string in-place, assuming that the content is ASCII. + * Return true if the content was ASCII. + */ +constexpr bool to_lower_ascii(char* input, size_t length) noexcept; +} // namespace ada::unicode + +#endif // ADA_UNICODE_H +/* end file include/ada/unicode.h */ +/* begin file include/ada/url_base-inl.h */ +/** + * @file url_base-inl.h + * @brief Inline functions for url base + */ +#ifndef ADA_URL_BASE_INL_H +#define ADA_URL_BASE_INL_H + +/* begin file include/ada/url_aggregator.h */ +/** + * @file url_aggregator.h + * @brief Declaration for the basic URL definitions + */ +#ifndef ADA_URL_AGGREGATOR_H +#define ADA_URL_AGGREGATOR_H + + +#include +#include + +namespace ada { + +/** + * @brief Lightweight URL struct. + * + * @details The url_aggregator class aims to minimize temporary memory + * allocation while representing a parsed URL. Internally, it contains a single + * normalized URL (the href), and it makes available the components, mostly + * using std::string_view. + */ +struct url_aggregator : url_base { + url_aggregator() = default; + url_aggregator(const url_aggregator &u) = default; + url_aggregator(url_aggregator &&u) noexcept = default; + url_aggregator &operator=(url_aggregator &&u) noexcept = default; + url_aggregator &operator=(const url_aggregator &u) = default; + ~url_aggregator() override = default; + + bool set_href(std::string_view input); + bool set_host(std::string_view input); + bool set_hostname(std::string_view input); + bool set_protocol(std::string_view input); + bool set_username(std::string_view input); + bool set_password(std::string_view input); + bool set_port(std::string_view input); + bool set_pathname(std::string_view input); + void set_search(std::string_view input); + void set_hash(std::string_view input); + + [[nodiscard]] bool has_valid_domain() const noexcept override; + /** + * The origin getter steps are to return the serialization of this's URL's + * origin. [HTML] + * @return a newly allocated string. + * @see https://url.spec.whatwg.org/#concept-url-origin + */ + [[nodiscard]] std::string get_origin() const noexcept override; + /** + * Return the normalized string. + * This function does not allocate memory. + * It is highly efficient. + * @return a constant reference to the underlying normalized URL. + * @see https://url.spec.whatwg.org/#dom-url-href + * @see https://url.spec.whatwg.org/#concept-url-serializer + */ + [[nodiscard]] inline std::string_view get_href() const noexcept; + /** + * The username getter steps are to return this's URL's username. + * This function does not allocate memory. + * @return a lightweight std::string_view. + * @see https://url.spec.whatwg.org/#dom-url-username + */ + [[nodiscard]] std::string_view get_username() const noexcept; + /** + * The password getter steps are to return this's URL's password. + * This function does not allocate memory. + * @return a lightweight std::string_view. + * @see https://url.spec.whatwg.org/#dom-url-password + */ + [[nodiscard]] std::string_view get_password() const noexcept; + /** + * Return this's URL's port, serialized. + * This function does not allocate memory. + * @return a lightweight std::string_view. + * @see https://url.spec.whatwg.org/#dom-url-port + */ + [[nodiscard]] std::string_view get_port() const noexcept; + /** + * Return U+0023 (#), followed by this's URL's fragment. + * This function does not allocate memory. + * @return a lightweight std::string_view.. + * @see https://url.spec.whatwg.org/#dom-url-hash + */ + [[nodiscard]] std::string_view get_hash() const noexcept; + /** + * Return url's host, serialized, followed by U+003A (:) and url's port, + * serialized. + * This function does not allocate memory. + * When there is no host, this function returns the empty view. + * @return a lightweight std::string_view. + * @see https://url.spec.whatwg.org/#dom-url-host + */ + [[nodiscard]] std::string_view get_host() const noexcept; + /** + * Return this's URL's host, serialized. + * This function does not allocate memory. + * When there is no host, this function returns the empty view. + * @return a lightweight std::string_view. + * @see https://url.spec.whatwg.org/#dom-url-hostname + */ + [[nodiscard]] std::string_view get_hostname() const noexcept; + /** + * The pathname getter steps are to return the result of URL path serializing + * this's URL. + * This function does not allocate memory. + * @return a lightweight std::string_view. + * @see https://url.spec.whatwg.org/#dom-url-pathname + */ + [[nodiscard]] std::string_view get_pathname() const noexcept; + /** + * Compute the pathname length in bytes without instantiating a view or a + * string. + * @return size of the pathname in bytes + * @see https://url.spec.whatwg.org/#dom-url-pathname + */ + [[nodiscard]] ada_really_inline uint32_t get_pathname_length() const noexcept; + /** + * Return U+003F (?), followed by this's URL's query. + * This function does not allocate memory. + * @return a lightweight std::string_view. + * @see https://url.spec.whatwg.org/#dom-url-search + */ + [[nodiscard]] std::string_view get_search() const noexcept; + /** + * The protocol getter steps are to return this's URL's scheme, followed by + * U+003A (:). + * This function does not allocate memory. + * @return a lightweight std::string_view. + * @see https://url.spec.whatwg.org/#dom-url-protocol + */ + [[nodiscard]] std::string_view get_protocol() const noexcept; + + /** + * A URL includes credentials if its username or password is not the empty + * string. + */ + [[nodiscard]] ada_really_inline bool has_credentials() const noexcept; + + /** + * Useful for implementing efficient serialization for the URL. + * + * https://user:pass@example.com:1234/foo/bar?baz#quux + * | | | | ^^^^| | | + * | | | | | | | `----- hash_start + * | | | | | | `--------- search_start + * | | | | | `----------------- pathname_start + * | | | | `--------------------- port + * | | | `----------------------- host_end + * | | `---------------------------------- host_start + * | `--------------------------------------- username_end + * `--------------------------------------------- protocol_end + * + * Inspired after servo/url + * + * @return a constant reference to the underlying component attribute. + * + * @see + * https://github.com/servo/rust-url/blob/b65a45515c10713f6d212e6726719a020203cc98/url/src/quirks.rs#L31 + */ + [[nodiscard]] ada_really_inline const ada::url_components &get_components() + const noexcept; + /** + * Returns a string representation of this URL. + */ + [[nodiscard]] std::string to_string() const override; + /** + * Returns a string diagram of this URL. + */ + [[nodiscard]] std::string to_diagram() const; + + /** + * Verifies that the parsed URL could be valid. Useful for debugging purposes. + * @return true if the URL is valid, otherwise return true of the offsets are + * possible. + */ + [[nodiscard]] bool validate() const noexcept; + + /** @return true if it has an host but it is the empty string */ + [[nodiscard]] inline bool has_empty_hostname() const noexcept; + /** @return true if it has a host (included an empty host) */ + [[nodiscard]] inline bool has_hostname() const noexcept; + /** @return true if the URL has a non-empty username */ + [[nodiscard]] inline bool has_non_empty_username() const noexcept; + /** @return true if the URL has a non-empty password */ + [[nodiscard]] inline bool has_non_empty_password() const noexcept; + /** @return true if the URL has a (non default) port */ + [[nodiscard]] inline bool has_port() const noexcept; + /** @return true if the URL has a password */ + [[nodiscard]] inline bool has_password() const noexcept; + /** @return true if the URL has a hash component */ + [[nodiscard]] inline bool has_hash() const noexcept override; + /** @return true if the URL has a search component */ + [[nodiscard]] inline bool has_search() const noexcept override; + + inline void clear_port(); + inline void clear_hash(); + inline void clear_search() override; + + private: + friend ada::url_aggregator ada::parser::parse_url( + std::string_view, const ada::url_aggregator *); + friend void ada::helpers::strip_trailing_spaces_from_opaque_path< + ada::url_aggregator>(ada::url_aggregator &url) noexcept; + + std::string buffer{}; + url_components components{}; + + /** + * Returns true if neither the search, nor the hash nor the pathname + * have been set. + * @return true if the buffer is ready to receive the path. + */ + [[nodiscard]] ada_really_inline bool is_at_path() const noexcept; + + inline void add_authority_slashes_if_needed() noexcept; + + /** + * To optimize performance, you may indicate how much memory to allocate + * within this instance. + */ + inline void reserve(uint32_t capacity); + + ada_really_inline size_t parse_port( + std::string_view view, bool check_trailing_content) noexcept override; + + ada_really_inline size_t parse_port(std::string_view view) noexcept override { + return this->parse_port(view, false); + } + + /** + * Return true on success. + * @see https://url.spec.whatwg.org/#concept-ipv4-parser + */ + [[nodiscard]] bool parse_ipv4(std::string_view input); + + /** + * Return true on success. + * @see https://url.spec.whatwg.org/#concept-ipv6-parser + */ + [[nodiscard]] bool parse_ipv6(std::string_view input); + + /** + * Return true on success. + * @see https://url.spec.whatwg.org/#concept-opaque-host-parser + */ + [[nodiscard]] bool parse_opaque_host(std::string_view input); + + ada_really_inline void parse_path(std::string_view input); + + /** + * A URL cannot have a username/password/port if its host is null or the empty + * string, or its scheme is "file". + */ + [[nodiscard]] inline bool cannot_have_credentials_or_port() const; + + template + bool set_host_or_hostname(std::string_view input); + + ada_really_inline bool parse_host(std::string_view input); + + inline void update_base_authority(std::string_view base_buffer, + const ada::url_components &base); + inline void update_unencoded_base_hash(std::string_view input); + inline void update_base_hostname(std::string_view input); + inline void update_base_search(std::string_view input); + inline void update_base_search(std::string_view input, + const uint8_t *query_percent_encode_set); + inline void update_base_pathname(std::string_view input); + inline void update_base_username(std::string_view input); + inline void append_base_username(std::string_view input); + inline void update_base_password(std::string_view input); + inline void append_base_password(std::string_view input); + inline void update_base_port(uint32_t input); + inline void append_base_pathname(std::string_view input); + [[nodiscard]] inline uint32_t retrieve_base_port() const; + inline void clear_hostname(); + inline void clear_password(); + inline void clear_pathname() override; + [[nodiscard]] inline bool has_dash_dot() const noexcept; + void delete_dash_dot(); + inline void consume_prepared_path(std::string_view input); + template + [[nodiscard]] ada_really_inline bool parse_scheme_with_colon( + std::string_view input); + ada_really_inline uint32_t replace_and_resize(uint32_t start, uint32_t end, + std::string_view input); + [[nodiscard]] inline bool has_authority() const noexcept; + inline void set_protocol_as_file(); + inline void set_scheme(std::string_view new_scheme) noexcept; + /** + * Fast function to set the scheme from a view with a colon in the + * buffer, does not change type. + */ + inline void set_scheme_from_view_with_colon( + std::string_view new_scheme_with_colon) noexcept; + inline void copy_scheme(const url_aggregator &u) noexcept; + +}; // url_aggregator + +inline std::ostream &operator<<(std::ostream &out, const ada::url &u); +} // namespace ada + +#endif +/* end file include/ada/url_aggregator.h */ +/* begin file include/ada/checkers.h */ +/** + * @file checkers.h + * @brief Declarations for URL specific checkers used within Ada. + */ +#ifndef ADA_CHECKERS_H +#define ADA_CHECKERS_H + + +#include +#include + +/** + * @namespace ada::checkers + * @brief Includes the definitions for validation functions + */ +namespace ada::checkers { + +/** + * Assuming that x is an ASCII letter, this function returns the lower case + * equivalent. + * @details More likely to be inlined by the compiler and constexpr. + */ +constexpr char to_lower(char x) noexcept; + +/** + * Returns true if the character is an ASCII letter. Equivalent to std::isalpha + * but more likely to be inlined by the compiler. + * + * @attention std::isalpha is not constexpr generally. + */ +constexpr bool is_alpha(char x) noexcept; + +/** + * Check whether a string starts with 0x or 0X. The function is only + * safe if input.size() >=2. + * + * @see has_hex_prefix + */ +inline bool has_hex_prefix_unsafe(std::string_view input); +/** + * Check whether a string starts with 0x or 0X. + */ +inline bool has_hex_prefix(std::string_view input); + +/** + * Check whether x is an ASCII digit. More likely to be inlined than + * std::isdigit. + */ +constexpr bool is_digit(char x) noexcept; + +/** + * @details A string starts with a Windows drive letter if all of the following + * are true: + * + * - its length is greater than or equal to 2 + * - its first two code points are a Windows drive letter + * - its length is 2 or its third code point is U+002F (/), U+005C (\), U+003F + * (?), or U+0023 (#). + * + * https://url.spec.whatwg.org/#start-with-a-windows-drive-letter + */ +inline constexpr bool is_windows_drive_letter(std::string_view input) noexcept; + +/** + * @details A normalized Windows drive letter is a Windows drive letter of which + * the second code point is U+003A (:). + */ +inline constexpr bool is_normalized_windows_drive_letter( + std::string_view input) noexcept; + +/** + * @warning Will be removed when Ada requires C++20. + */ +ada_really_inline bool begins_with(std::string_view view, + std::string_view prefix); + +/** + * Returns true if an input is an ipv4 address. It is assumed that the string + * does not contain uppercase ASCII characters (the input should have been + * lowered cased before calling this function) and is not empty. + */ +ada_really_inline ada_constexpr bool is_ipv4(std::string_view view) noexcept; + +/** + * Returns a bitset. If the first bit is set, then at least one character needs + * percent encoding. If the second bit is set, a \\ is found. If the third bit + * is set then we have a dot. If the fourth bit is set, then we have a percent + * character. + */ +ada_really_inline constexpr uint8_t path_signature( + std::string_view input) noexcept; + +/** + * Returns true if the length of the domain name and its labels are according to + * the specifications. The length of the domain must be 255 octets (253 + * characters not including the last 2 which are the empty label reserved at the + * end). When the empty label is included (a dot at the end), the domain name + * can have 254 characters. The length of a label must be at least 1 and at most + * 63 characters. + * @see section 3.1. of https://www.rfc-editor.org/rfc/rfc1034 + * @see https://www.unicode.org/reports/tr46/#ToASCII + */ +ada_really_inline constexpr bool verify_dns_length( + std::string_view input) noexcept; + +} // namespace ada::checkers + +#endif // ADA_CHECKERS_H +/* end file include/ada/checkers.h */ +/* begin file include/ada/url.h */ +/** + * @file url.h + * @brief Declaration for the URL + */ +#ifndef ADA_URL_H +#define ADA_URL_H + + +#include +#include +#include +#include +#include +#include + +namespace ada { + +/** + * @brief Generic URL struct reliant on std::string instantiation. + * + * @details To disambiguate from a valid URL string it can also be referred to + * as a URL record. A URL is a struct that represents a universal identifier. + * Unlike the url_aggregator, the ada::url represents the different components + * of a parsed URL as independent std::string instances. This makes the + * structure heavier and more reliant on memory allocations. When getting + * components from the parsed URL, a new std::string is typically constructed. + * + * @see https://url.spec.whatwg.org/#url-representation + */ +struct url : url_base { + url() = default; + url(const url &u) = default; + url(url &&u) noexcept = default; + url &operator=(url &&u) noexcept = default; + url &operator=(const url &u) = default; + ~url() override = default; + + /** + * @private + * A URL's username is an ASCII string identifying a username. It is initially + * the empty string. + */ + std::string username{}; + + /** + * @private + * A URL's password is an ASCII string identifying a password. It is initially + * the empty string. + */ + std::string password{}; + + /** + * @private + * A URL's host is null or a host. It is initially null. + */ + std::optional host{}; + + /** + * @private + * A URL's port is either null or a 16-bit unsigned integer that identifies a + * networking port. It is initially null. + */ + std::optional port{}; + + /** + * @private + * A URL's path is either an ASCII string or a list of zero or more ASCII + * strings, usually identifying a location. + */ + std::string path{}; + + /** + * @private + * A URL's query is either null or an ASCII string. It is initially null. + */ + std::optional query{}; + + /** + * @private + * A URL's fragment is either null or an ASCII string that can be used for + * further processing on the resource the URL's other components identify. It + * is initially null. + */ + std::optional hash{}; + + /** @return true if it has an host but it is the empty string */ + [[nodiscard]] inline bool has_empty_hostname() const noexcept; + /** @return true if the URL has a (non default) port */ + [[nodiscard]] inline bool has_port() const noexcept; + /** @return true if it has a host (included an empty host) */ + [[nodiscard]] inline bool has_hostname() const noexcept; + [[nodiscard]] bool has_valid_domain() const noexcept override; + + /** + * Returns a JSON string representation of this URL. + */ + [[nodiscard]] std::string to_string() const override; + + /** + * @see https://url.spec.whatwg.org/#dom-url-href + * @see https://url.spec.whatwg.org/#concept-url-serializer + */ + [[nodiscard]] ada_really_inline std::string get_href() const noexcept; + + /** + * The origin getter steps are to return the serialization of this's URL's + * origin. [HTML] + * @return a newly allocated string. + * @see https://url.spec.whatwg.org/#concept-url-origin + */ + [[nodiscard]] std::string get_origin() const noexcept override; + + /** + * The protocol getter steps are to return this's URL's scheme, followed by + * U+003A (:). + * @return a newly allocated string. + * @see https://url.spec.whatwg.org/#dom-url-protocol + */ + [[nodiscard]] std::string get_protocol() const noexcept; + + /** + * Return url's host, serialized, followed by U+003A (:) and url's port, + * serialized. + * When there is no host, this function returns the empty string. + * @return a newly allocated string. + * @see https://url.spec.whatwg.org/#dom-url-host + */ + [[nodiscard]] std::string get_host() const noexcept; + + /** + * Return this's URL's host, serialized. + * When there is no host, this function returns the empty string. + * @return a newly allocated string. + * @see https://url.spec.whatwg.org/#dom-url-hostname + */ + [[nodiscard]] std::string get_hostname() const noexcept; + + /** + * The pathname getter steps are to return the result of URL path serializing + * this's URL. + * @return a newly allocated string. + * @see https://url.spec.whatwg.org/#dom-url-pathname + */ + [[nodiscard]] std::string_view get_pathname() const noexcept; + + /** + * Compute the pathname length in bytes without instantiating a view or a + * string. + * @return size of the pathname in bytes + * @see https://url.spec.whatwg.org/#dom-url-pathname + */ + [[nodiscard]] ada_really_inline size_t get_pathname_length() const noexcept; + + /** + * Return U+003F (?), followed by this's URL's query. + * @return a newly allocated string. + * @see https://url.spec.whatwg.org/#dom-url-search + */ + [[nodiscard]] std::string get_search() const noexcept; + + /** + * The username getter steps are to return this's URL's username. + * @return a constant reference to the underlying string. + * @see https://url.spec.whatwg.org/#dom-url-username + */ + [[nodiscard]] const std::string &get_username() const noexcept; + + /** + * @return Returns true on successful operation. + * @see https://url.spec.whatwg.org/#dom-url-username + */ + bool set_username(std::string_view input); + + /** + * @return Returns true on success. + * @see https://url.spec.whatwg.org/#dom-url-password + */ + bool set_password(std::string_view input); + + /** + * @return Returns true on success. + * @see https://url.spec.whatwg.org/#dom-url-port + */ + bool set_port(std::string_view input); + + /** + * This function always succeeds. + * @see https://url.spec.whatwg.org/#dom-url-hash + */ + void set_hash(std::string_view input); + + /** + * This function always succeeds. + * @see https://url.spec.whatwg.org/#dom-url-search + */ + void set_search(std::string_view input); + + /** + * @return Returns true on success. + * @see https://url.spec.whatwg.org/#dom-url-search + */ + bool set_pathname(std::string_view input); + + /** + * @return Returns true on success. + * @see https://url.spec.whatwg.org/#dom-url-host + */ + bool set_host(std::string_view input); + + /** + * @return Returns true on success. + * @see https://url.spec.whatwg.org/#dom-url-hostname + */ + bool set_hostname(std::string_view input); + + /** + * @return Returns true on success. + * @see https://url.spec.whatwg.org/#dom-url-protocol + */ + bool set_protocol(std::string_view input); + + /** + * @see https://url.spec.whatwg.org/#dom-url-href + */ + bool set_href(std::string_view input); + + /** + * The password getter steps are to return this's URL's password. + * @return a constant reference to the underlying string. + * @see https://url.spec.whatwg.org/#dom-url-password + */ + [[nodiscard]] const std::string &get_password() const noexcept; + + /** + * Return this's URL's port, serialized. + * @return a newly constructed string representing the port. + * @see https://url.spec.whatwg.org/#dom-url-port + */ + [[nodiscard]] std::string get_port() const noexcept; + + /** + * Return U+0023 (#), followed by this's URL's fragment. + * @return a newly constructed string representing the hash. + * @see https://url.spec.whatwg.org/#dom-url-hash + */ + [[nodiscard]] std::string get_hash() const noexcept; + + /** + * A URL includes credentials if its username or password is not the empty + * string. + */ + [[nodiscard]] ada_really_inline bool has_credentials() const noexcept; + + /** + * Useful for implementing efficient serialization for the URL. + * + * https://user:pass@example.com:1234/foo/bar?baz#quux + * | | | | ^^^^| | | + * | | | | | | | `----- hash_start + * | | | | | | `--------- search_start + * | | | | | `----------------- pathname_start + * | | | | `--------------------- port + * | | | `----------------------- host_end + * | | `---------------------------------- host_start + * | `--------------------------------------- username_end + * `--------------------------------------------- protocol_end + * + * Inspired after servo/url + * + * @return a newly constructed component. + * + * @see + * https://github.com/servo/rust-url/blob/b65a45515c10713f6d212e6726719a020203cc98/url/src/quirks.rs#L31 + */ + [[nodiscard]] ada_really_inline ada::url_components get_components() + const noexcept; + /** @return true if the URL has a hash component */ + [[nodiscard]] inline bool has_hash() const noexcept override; + /** @return true if the URL has a search component */ + [[nodiscard]] inline bool has_search() const noexcept override; + + private: + friend ada::url ada::parser::parse_url(std::string_view, + const ada::url *); + friend ada::url_aggregator ada::parser::parse_url( + std::string_view, const ada::url_aggregator *); + friend void ada::helpers::strip_trailing_spaces_from_opaque_path( + ada::url &url) noexcept; + + inline void update_unencoded_base_hash(std::string_view input); + inline void update_base_hostname(std::string_view input); + inline void update_base_search(std::string_view input); + inline void update_base_search(std::string_view input, + const uint8_t query_percent_encode_set[]); + inline void update_base_search(std::optional input); + inline void update_base_pathname(std::string_view input); + inline void update_base_username(std::string_view input); + inline void update_base_password(std::string_view input); + inline void update_base_port(std::optional input); + + /** + * Sets the host or hostname according to override condition. + * Return true on success. + * @see https://url.spec.whatwg.org/#hostname-state + */ + template + bool set_host_or_hostname(std::string_view input); + + /** + * Return true on success. + * @see https://url.spec.whatwg.org/#concept-ipv4-parser + */ + [[nodiscard]] bool parse_ipv4(std::string_view input); + + /** + * Return true on success. + * @see https://url.spec.whatwg.org/#concept-ipv6-parser + */ + [[nodiscard]] bool parse_ipv6(std::string_view input); + + /** + * Return true on success. + * @see https://url.spec.whatwg.org/#concept-opaque-host-parser + */ + [[nodiscard]] bool parse_opaque_host(std::string_view input); + + /** + * A URL's scheme is an ASCII string that identifies the type of URL and can + * be used to dispatch a URL for further processing after parsing. It is + * initially the empty string. We only set non_special_scheme when the scheme + * is non-special, otherwise we avoid constructing string. + * + * Special schemes are stored in ada::scheme::details::is_special_list so we + * typically do not need to store them in each url instance. + */ + std::string non_special_scheme{}; + + /** + * A URL cannot have a username/password/port if its host is null or the empty + * string, or its scheme is "file". + */ + [[nodiscard]] inline bool cannot_have_credentials_or_port() const; + + ada_really_inline size_t parse_port( + std::string_view view, bool check_trailing_content) noexcept override; + + ada_really_inline size_t parse_port(std::string_view view) noexcept override { + return this->parse_port(view, false); + } + + /** + * Take the scheme from another URL. The scheme string is copied from the + * provided url. + */ + inline void copy_scheme(const ada::url &u); + + /** + * Parse the host from the provided input. We assume that + * the input does not contain spaces or tabs. Control + * characters and spaces are not trimmed (they should have + * been removed if needed). + * Return true on success. + * @see https://url.spec.whatwg.org/#host-parsing + */ + [[nodiscard]] ada_really_inline bool parse_host(std::string_view input); + + template + [[nodiscard]] ada_really_inline bool parse_scheme(std::string_view input); + + inline void clear_pathname() override; + inline void clear_search() override; + inline void set_protocol_as_file(); + + /** + * Parse the path from the provided input. + * Return true on success. Control characters not + * trimmed from the ends (they should have + * been removed if needed). + * + * The input is expected to be UTF-8. + * + * @see https://url.spec.whatwg.org/ + */ + ada_really_inline void parse_path(std::string_view input); + + /** + * Set the scheme for this URL. The provided scheme should be a valid + * scheme string, be lower-cased, not contain spaces or tabs. It should + * have no spurious trailing or leading content. + */ + inline void set_scheme(std::string &&new_scheme) noexcept; + + /** + * Take the scheme from another URL. The scheme string is moved from the + * provided url. + */ + inline void copy_scheme(ada::url &&u) noexcept; + +}; // struct url + +inline std::ostream &operator<<(std::ostream &out, const ada::url &u); +} // namespace ada + +#endif // ADA_URL_H +/* end file include/ada/url.h */ + +#include +#include +#if ADA_REGULAR_VISUAL_STUDIO +#include +#endif // ADA_REGULAR_VISUAL_STUDIO + +namespace ada { + +[[nodiscard]] ada_really_inline bool url_base::is_special() const noexcept { + return type != ada::scheme::NOT_SPECIAL; +} + +[[nodiscard]] inline uint16_t url_base::get_special_port() const noexcept { + return ada::scheme::get_special_port(type); +} + +[[nodiscard]] ada_really_inline uint16_t +url_base::scheme_default_port() const noexcept { + return scheme::get_special_port(type); +} + +} // namespace ada + +#endif // ADA_URL_BASE_INL_H +/* end file include/ada/url_base-inl.h */ +/* begin file include/ada/url-inl.h */ +/** + * @file url-inl.h + * @brief Definitions for the URL + */ +#ifndef ADA_URL_INL_H +#define ADA_URL_INL_H + + +#include +#include +#if ADA_REGULAR_VISUAL_STUDIO +#include +#endif // ADA_REGULAR_VISUAL_STUDIO + +namespace ada { +[[nodiscard]] ada_really_inline bool url::has_credentials() const noexcept { + return !username.empty() || !password.empty(); +} +[[nodiscard]] ada_really_inline bool url::has_port() const noexcept { + return port.has_value(); +} +[[nodiscard]] inline bool url::cannot_have_credentials_or_port() const { + return !host.has_value() || host.value().empty() || + type == ada::scheme::type::FILE; +} +[[nodiscard]] inline bool url::has_empty_hostname() const noexcept { + if (!host.has_value()) { + return false; + } + return host.value().empty(); +} +[[nodiscard]] inline bool url::has_hostname() const noexcept { + return host.has_value(); +} +inline std::ostream &operator<<(std::ostream &out, const ada::url &u) { + return out << u.to_string(); +} + +[[nodiscard]] size_t url::get_pathname_length() const noexcept { + return path.size(); +} + +[[nodiscard]] ada_really_inline ada::url_components url::get_components() + const noexcept { + url_components out{}; + + // protocol ends with ':'. for example: "https:" + out.protocol_end = uint32_t(get_protocol().size()); + + // Trailing index is always the next character of the current one. + size_t running_index = out.protocol_end; + + if (host.has_value()) { + // 2 characters for "//" and 1 character for starting index + out.host_start = out.protocol_end + 2; + + if (has_credentials()) { + out.username_end = uint32_t(out.host_start + username.size()); + + out.host_start += uint32_t(username.size()); + + if (!password.empty()) { + out.host_start += uint32_t(password.size() + 1); + } + + out.host_end = uint32_t(out.host_start + host.value().size()); + } else { + out.username_end = out.host_start; + + // Host does not start with "@" if it does not include credentials. + out.host_end = uint32_t(out.host_start + host.value().size()) - 1; + } + + running_index = out.host_end + 1; + } else { + // Update host start and end date to the same index, since it does not + // exist. + out.host_start = out.protocol_end; + out.host_end = out.host_start; + + if (!has_opaque_path && checkers::begins_with(path, "//")) { + // If url's host is null, url does not have an opaque path, url's path's + // size is greater than 1, and url's path[0] is the empty string, then + // append U+002F (/) followed by U+002E (.) to output. + running_index = out.protocol_end + 2; + } else { + running_index = out.protocol_end; + } + } + + if (port.has_value()) { + out.port = *port; + running_index += helpers::fast_digit_count(*port) + 1; // Port omits ':' + } + + out.pathname_start = uint32_t(running_index); + + running_index += path.size(); + + if (query.has_value()) { + out.search_start = uint32_t(running_index); + running_index += get_search().size(); + if (get_search().size() == 0) { + running_index++; + } + } + + if (hash.has_value()) { + out.hash_start = uint32_t(running_index); + } + + return out; +} + +inline void url::update_base_hostname(std::string_view input) { host = input; } + +inline void url::update_unencoded_base_hash(std::string_view input) { + // We do the percent encoding + hash = unicode::percent_encode(input, + ada::character_sets::FRAGMENT_PERCENT_ENCODE); +} + +inline void url::update_base_search(std::string_view input, + const uint8_t query_percent_encode_set[]) { + query = ada::unicode::percent_encode(input, query_percent_encode_set); +} + +inline void url::update_base_search(std::optional input) { + query = input; +} + +inline void url::update_base_pathname(const std::string_view input) { + path = input; +} + +inline void url::update_base_username(const std::string_view input) { + username = input; +} + +inline void url::update_base_password(const std::string_view input) { + password = input; +} + +inline void url::update_base_port(std::optional input) { + port = input; +} + +inline void url::clear_pathname() { path.clear(); } + +inline void url::clear_search() { query = std::nullopt; } + +[[nodiscard]] inline bool url::has_hash() const noexcept { + return hash.has_value(); +} + +[[nodiscard]] inline bool url::has_search() const noexcept { + return query.has_value(); +} + +inline void url::set_protocol_as_file() { type = ada::scheme::type::FILE; } + +inline void url::set_scheme(std::string &&new_scheme) noexcept { + type = ada::scheme::get_scheme_type(new_scheme); + // We only move the 'scheme' if it is non-special. + if (!is_special()) { + non_special_scheme = new_scheme; + } +} + +inline void url::copy_scheme(ada::url &&u) noexcept { + non_special_scheme = u.non_special_scheme; + type = u.type; +} + +inline void url::copy_scheme(const ada::url &u) { + non_special_scheme = u.non_special_scheme; + type = u.type; +} + +[[nodiscard]] ada_really_inline std::string url::get_href() const noexcept { + std::string output = get_protocol(); + + if (host.has_value()) { + output += "//"; + if (has_credentials()) { + output += username; + if (!password.empty()) { + output += ":" + get_password(); + } + output += "@"; + } + output += host.value(); + if (port.has_value()) { + output += ":" + get_port(); + } + } else if (!has_opaque_path && checkers::begins_with(path, "//")) { + // If url's host is null, url does not have an opaque path, url's path's + // size is greater than 1, and url's path[0] is the empty string, then + // append U+002F (/) followed by U+002E (.) to output. + output += "/."; + } + output += path; + if (query.has_value()) { + output += "?" + query.value(); + } + if (hash.has_value()) { + output += "#" + hash.value(); + } + return output; +} + +ada_really_inline size_t url::parse_port(std::string_view view, + bool check_trailing_content) noexcept { + ada_log("parse_port('", view, "') ", view.size()); + uint16_t parsed_port{}; + auto r = std::from_chars(view.data(), view.data() + view.size(), parsed_port); + if (r.ec == std::errc::result_out_of_range) { + ada_log("parse_port: std::errc::result_out_of_range"); + is_valid = false; + return 0; + } + ada_log("parse_port: ", parsed_port); + const size_t consumed = size_t(r.ptr - view.data()); + ada_log("parse_port: consumed ", consumed); + if (check_trailing_content) { + is_valid &= + (consumed == view.size() || view[consumed] == '/' || + view[consumed] == '?' || (is_special() && view[consumed] == '\\')); + } + ada_log("parse_port: is_valid = ", is_valid); + if (is_valid) { + // scheme_default_port can return 0, and we should allow 0 as a base port. + auto default_port = scheme_default_port(); + bool is_port_valid = (default_port == 0 && parsed_port == 0) || + (default_port != parsed_port); + port = (r.ec == std::errc() && is_port_valid) + ? std::optional(parsed_port) + : std::nullopt; + } + return consumed; +} + +} // namespace ada + +#endif // ADA_URL_H +/* end file include/ada/url-inl.h */ +/* begin file include/ada/url_aggregator-inl.h */ +/** + * @file url_aggregator-inl.h + * @brief Inline functions for url aggregator + */ +#ifndef ADA_URL_AGGREGATOR_INL_H +#define ADA_URL_AGGREGATOR_INL_H + +/* begin file include/ada/unicode-inl.h */ +/** + * @file unicode-inl.h + * @brief Definitions for unicode operations. + */ +#ifndef ADA_UNICODE_INL_H +#define ADA_UNICODE_INL_H +#include + +/** + * @namespace ada::unicode + * @brief Includes the declarations for unicode operations + */ +namespace ada::unicode { +ada_really_inline size_t percent_encode_index(const std::string_view input, + const uint8_t character_set[]) { + return std::distance( + input.begin(), + std::find_if(input.begin(), input.end(), [character_set](const char c) { + return character_sets::bit_at(character_set, c); + })); +} +} // namespace ada::unicode + +#endif // ADA_UNICODE_INL_H +/* end file include/ada/unicode-inl.h */ + +#include +#include + +namespace ada { + +inline void url_aggregator::update_base_authority( + std::string_view base_buffer, const ada::url_components &base) { + std::string_view input = base_buffer.substr( + base.protocol_end, base.host_start - base.protocol_end); + ada_log("url_aggregator::update_base_authority ", input); + + bool input_starts_with_dash = checkers::begins_with(input, "//"); + uint32_t diff = components.host_start - components.protocol_end; + + buffer.erase(components.protocol_end, + components.host_start - components.protocol_end); + components.username_end = components.protocol_end; + + if (input_starts_with_dash) { + input.remove_prefix(2); + diff += 2; // add "//" + buffer.insert(components.protocol_end, "//"); + components.username_end += 2; + } + + size_t password_delimiter = input.find(':'); + + // Check if input contains both username and password by checking the + // delimiter: ":" A typical input that contains authority would be "user:pass" + if (password_delimiter != std::string_view::npos) { + // Insert both username and password + std::string_view username = input.substr(0, password_delimiter); + std::string_view password = input.substr(password_delimiter + 1); + + buffer.insert(components.protocol_end + diff, username); + diff += uint32_t(username.size()); + buffer.insert(components.protocol_end + diff, ":"); + components.username_end = components.protocol_end + diff; + buffer.insert(components.protocol_end + diff + 1, password); + diff += uint32_t(password.size()) + 1; + } else if (!input.empty()) { + // Insert only username + buffer.insert(components.protocol_end + diff, input); + components.username_end = + components.protocol_end + diff + uint32_t(input.size()); + diff += uint32_t(input.size()); + } + + components.host_start += diff; + + if (buffer.size() > base.host_start && buffer[base.host_start] != '@') { + buffer.insert(components.host_start, "@"); + diff++; + } + components.host_end += diff; + components.pathname_start += diff; + if (components.search_start != url_components::omitted) { + components.search_start += diff; + } + if (components.hash_start != url_components::omitted) { + components.hash_start += diff; + } +} + +inline void url_aggregator::update_unencoded_base_hash(std::string_view input) { + ada_log("url_aggregator::update_unencoded_base_hash ", input, " [", + input.size(), " bytes], buffer is '", buffer, "' [", buffer.size(), + " bytes] components.hash_start = ", components.hash_start); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + if (components.hash_start != url_components::omitted) { + buffer.resize(components.hash_start); + } + components.hash_start = uint32_t(buffer.size()); + buffer += "#"; + bool encoding_required = unicode::percent_encode( + input, ada::character_sets::FRAGMENT_PERCENT_ENCODE, buffer); + // When encoding_required is false, then buffer is left unchanged, and percent + // encoding was not deemed required. + if (!encoding_required) { + buffer.append(input); + } + ada_log("url_aggregator::update_unencoded_base_hash final buffer is '", + buffer, "' [", buffer.size(), " bytes]"); + ADA_ASSERT_TRUE(validate()); +} + +ada_really_inline uint32_t url_aggregator::replace_and_resize( + uint32_t start, uint32_t end, std::string_view input) { + uint32_t current_length = end - start; + uint32_t input_size = uint32_t(input.size()); + uint32_t new_difference = input_size - current_length; + + if (current_length == 0) { + buffer.insert(start, input); + } else if (input_size == current_length) { + buffer.replace(start, input_size, input); + } else if (input_size < current_length) { + buffer.erase(start, current_length - input_size); + buffer.replace(start, input_size, input); + } else { + buffer.replace(start, current_length, input.substr(0, current_length)); + buffer.insert(start + current_length, input.substr(current_length)); + } + + return new_difference; +} + +inline void url_aggregator::update_base_hostname(const std::string_view input) { + ada_log("url_aggregator::update_base_hostname ", input, " [", input.size(), + " bytes], buffer is '", buffer, "' [", buffer.size(), " bytes]"); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + + // This next line is required for when parsing a URL like `foo://` + add_authority_slashes_if_needed(); + + bool has_credentials = components.protocol_end + 2 < components.host_start; + uint32_t new_difference = + replace_and_resize(components.host_start, components.host_end, input); + + if (has_credentials) { + buffer.insert(components.host_start, "@"); + new_difference++; + } + components.host_end += new_difference; + components.pathname_start += new_difference; + if (components.search_start != url_components::omitted) { + components.search_start += new_difference; + } + if (components.hash_start != url_components::omitted) { + components.hash_start += new_difference; + } + ADA_ASSERT_TRUE(validate()); +} + +[[nodiscard]] ada_really_inline uint32_t +url_aggregator::get_pathname_length() const noexcept { + ada_log("url_aggregator::get_pathname_length"); + uint32_t ending_index = uint32_t(buffer.size()); + if (components.search_start != url_components::omitted) { + ending_index = components.search_start; + } else if (components.hash_start != url_components::omitted) { + ending_index = components.hash_start; + } + return ending_index - components.pathname_start; +} + +[[nodiscard]] ada_really_inline bool url_aggregator::is_at_path() + const noexcept { + return buffer.size() == components.pathname_start; +} + +inline void url_aggregator::update_base_search(std::string_view input) { + ada_log("url_aggregator::update_base_search ", input); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + if (input.empty()) { + clear_search(); + return; + } + + if (input[0] == '?') { + input.remove_prefix(1); + } + + if (components.hash_start == url_components::omitted) { + if (components.search_start == url_components::omitted) { + components.search_start = uint32_t(buffer.size()); + buffer += "?"; + } else { + buffer.resize(components.search_start + 1); + } + + buffer.append(input); + } else { + if (components.search_start == url_components::omitted) { + components.search_start = components.hash_start; + } else { + buffer.erase(components.search_start, + components.hash_start - components.search_start); + components.hash_start = components.search_start; + } + + buffer.insert(components.search_start, "?"); + buffer.insert(components.search_start + 1, input); + components.hash_start += uint32_t(input.size() + 1); // Do not forget `?` + } + + ADA_ASSERT_TRUE(validate()); +} + +inline void url_aggregator::update_base_search( + std::string_view input, const uint8_t query_percent_encode_set[]) { + ada_log("url_aggregator::update_base_search ", input, + " with encoding parameter ", to_string(), "\n", to_diagram()); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + + if (components.hash_start == url_components::omitted) { + if (components.search_start == url_components::omitted) { + components.search_start = uint32_t(buffer.size()); + buffer += "?"; + } else { + buffer.resize(components.search_start + 1); + } + + bool encoding_required = + unicode::percent_encode(input, query_percent_encode_set, buffer); + // When encoding_required is false, then buffer is left unchanged, and + // percent encoding was not deemed required. + if (!encoding_required) { + buffer.append(input); + } + } else { + if (components.search_start == url_components::omitted) { + components.search_start = components.hash_start; + } else { + buffer.erase(components.search_start, + components.hash_start - components.search_start); + components.hash_start = components.search_start; + } + + buffer.insert(components.search_start, "?"); + size_t idx = + ada::unicode::percent_encode_index(input, query_percent_encode_set); + if (idx == input.size()) { + buffer.insert(components.search_start + 1, input); + components.hash_start += uint32_t(input.size() + 1); // Do not forget `?` + } else { + buffer.insert(components.search_start + 1, input, 0, idx); + input.remove_prefix(idx); + // We only create a temporary string if we need percent encoding and + // we attempt to create as small a temporary string as we can. + std::string encoded = + ada::unicode::percent_encode(input, query_percent_encode_set); + buffer.insert(components.search_start + idx + 1, encoded); + components.hash_start += + uint32_t(encoded.size() + idx + 1); // Do not forget `?` + } + } + + ADA_ASSERT_TRUE(validate()); +} + +inline void url_aggregator::update_base_pathname(const std::string_view input) { + ada_log("url_aggregator::update_base_pathname '", input, "' [", input.size(), + " bytes] \n", to_diagram()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + ADA_ASSERT_TRUE(validate()); + + const bool begins_with_dashdash = checkers::begins_with(input, "//"); + if (!begins_with_dashdash && has_dash_dot()) { + ada_log("url_aggregator::update_base_pathname has /.: \n", to_diagram()); + // We must delete the ./ + delete_dash_dot(); + } + + if (begins_with_dashdash && !has_opaque_path && !has_authority() && + !has_dash_dot()) { + // If url's host is null, url does not have an opaque path, url's path's + // size is greater than 1, then append U+002F (/) followed by U+002E (.) to + // output. + buffer.insert(components.pathname_start, "/."); + components.pathname_start += 2; + } + + uint32_t difference = replace_and_resize( + components.pathname_start, + components.pathname_start + get_pathname_length(), input); + if (components.search_start != url_components::omitted) { + components.search_start += difference; + } + if (components.hash_start != url_components::omitted) { + components.hash_start += difference; + } + ada_log("url_aggregator::update_base_pathname end '", input, "' [", + input.size(), " bytes] \n", to_diagram()); + ADA_ASSERT_TRUE(validate()); +} + +inline void url_aggregator::append_base_pathname(const std::string_view input) { + ada_log("url_aggregator::append_base_pathname ", input, " ", to_string(), + "\n", to_diagram()); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); +#if ADA_DEVELOPMENT_CHECKS + // computing the expected password. + std::string path_expected = std::string(get_pathname()); + path_expected.append(input); +#endif // ADA_DEVELOPMENT_CHECKS + uint32_t ending_index = uint32_t(buffer.size()); + if (components.search_start != url_components::omitted) { + ending_index = components.search_start; + } else if (components.hash_start != url_components::omitted) { + ending_index = components.hash_start; + } + buffer.insert(ending_index, input); + + if (components.search_start != url_components::omitted) { + components.search_start += uint32_t(input.size()); + } + if (components.hash_start != url_components::omitted) { + components.hash_start += uint32_t(input.size()); + } +#if ADA_DEVELOPMENT_CHECKS + std::string path_after = std::string(get_pathname()); + ADA_ASSERT_EQUAL( + path_expected, path_after, + "append_base_pathname problem after inserting " + std::string(input)); +#endif // ADA_DEVELOPMENT_CHECKS + ADA_ASSERT_TRUE(validate()); +} + +inline void url_aggregator::update_base_username(const std::string_view input) { + ada_log("url_aggregator::update_base_username '", input, "' ", to_string(), + "\n", to_diagram()); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + + add_authority_slashes_if_needed(); + + bool has_password = has_non_empty_password(); + bool host_starts_with_at = buffer.size() > components.host_start && + buffer[components.host_start] == '@'; + uint32_t diff = replace_and_resize(components.protocol_end + 2, + components.username_end, input); + + components.username_end += diff; + components.host_start += diff; + + if (!input.empty() && !host_starts_with_at) { + buffer.insert(components.host_start, "@"); + diff++; + } else if (input.empty() && host_starts_with_at && !has_password) { + // Input is empty, there is no password, and we need to remove "@" from + // hostname + buffer.erase(components.host_start, 1); + diff--; + } + + components.host_end += diff; + components.pathname_start += diff; + if (components.search_start != url_components::omitted) { + components.search_start += diff; + } + if (components.hash_start != url_components::omitted) { + components.hash_start += diff; + } + ADA_ASSERT_TRUE(validate()); +} + +inline void url_aggregator::append_base_username(const std::string_view input) { + ada_log("url_aggregator::append_base_username ", input); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); +#if ADA_DEVELOPMENT_CHECKS + // computing the expected password. + std::string username_expected = std::string(get_username()); + username_expected.append(input); +#endif // ADA_DEVELOPMENT_CHECKS + add_authority_slashes_if_needed(); + + // If input is empty, do nothing. + if (input.empty()) { + return; + } + + uint32_t difference = uint32_t(input.size()); + buffer.insert(components.username_end, input); + components.username_end += difference; + components.host_start += difference; + + if (buffer[components.host_start] != '@' && + components.host_start != components.host_end) { + buffer.insert(components.host_start, "@"); + difference++; + } + + components.host_end += difference; + components.pathname_start += difference; + if (components.search_start != url_components::omitted) { + components.search_start += difference; + } + if (components.hash_start != url_components::omitted) { + components.hash_start += difference; + } +#if ADA_DEVELOPMENT_CHECKS + std::string username_after = std::string(get_username()); + ADA_ASSERT_EQUAL( + username_expected, username_after, + "append_base_username problem after inserting " + std::string(input)); +#endif // ADA_DEVELOPMENT_CHECKS + ADA_ASSERT_TRUE(validate()); +} + +inline void url_aggregator::clear_password() { + ada_log("url_aggregator::clear_password ", to_string(), "\n", to_diagram()); + ADA_ASSERT_TRUE(validate()); + if (!has_password()) { + return; + } + + uint32_t diff = components.host_start - components.username_end; + buffer.erase(components.username_end, diff); + components.host_start -= diff; + components.host_end -= diff; + components.pathname_start -= diff; + if (components.search_start != url_components::omitted) { + components.search_start -= diff; + } + if (components.hash_start != url_components::omitted) { + components.hash_start -= diff; + } +} + +inline void url_aggregator::update_base_password(const std::string_view input) { + ada_log("url_aggregator::update_base_password ", input); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); + + add_authority_slashes_if_needed(); + + // TODO: Optimization opportunity. Merge the following removal functions. + if (input.empty()) { + clear_password(); + + // Remove username too, if it is empty. + if (!has_non_empty_username()) { + update_base_username(""); + } + + return; + } + + bool password_exists = has_password(); + uint32_t difference = uint32_t(input.size()); + + if (password_exists) { + uint32_t current_length = + components.host_start - components.username_end - 1; + buffer.erase(components.username_end + 1, current_length); + difference -= current_length; + } else { + buffer.insert(components.username_end, ":"); + difference++; + } + + buffer.insert(components.username_end + 1, input); + components.host_start += difference; + + // The following line is required to add "@" to hostname. When updating + // password if hostname does not start with "@", it is "update_base_password"s + // responsibility to set it. + if (buffer[components.host_start] != '@') { + buffer.insert(components.host_start, "@"); + difference++; + } + + components.host_end += difference; + components.pathname_start += difference; + if (components.search_start != url_components::omitted) { + components.search_start += difference; + } + if (components.hash_start != url_components::omitted) { + components.hash_start += difference; + } + ADA_ASSERT_TRUE(validate()); +} + +inline void url_aggregator::append_base_password(const std::string_view input) { + ada_log("url_aggregator::append_base_password ", input, " ", to_string(), + "\n", to_diagram()); + ADA_ASSERT_TRUE(validate()); + ADA_ASSERT_TRUE(!helpers::overlaps(input, buffer)); +#if ADA_DEVELOPMENT_CHECKS + // computing the expected password. + std::string password_expected = std::string(get_password()); + password_expected.append(input); +#endif // ADA_DEVELOPMENT_CHECKS + add_authority_slashes_if_needed(); + + // If input is empty, do nothing. + if (input.empty()) { + return; + } + + uint32_t difference = uint32_t(input.size()); + if (has_password()) { + buffer.insert(components.host_start, input); + } else { + difference++; // Increment for ":" + buffer.insert(components.username_end, ":"); + buffer.insert(components.username_end + 1, input); + } + components.host_start += difference; + + // The following line is required to add "@" to hostname. When updating + // password if hostname does not start with "@", it is "append_base_password"s + // responsibility to set it. + if (buffer[components.host_start] != '@') { + buffer.insert(components.host_start, "@"); + difference++; + } + + components.host_end += difference; + components.pathname_start += difference; + if (components.search_start != url_components::omitted) { + components.search_start += difference; + } + if (components.hash_start != url_components::omitted) { + components.hash_start += difference; + } +#if ADA_DEVELOPMENT_CHECKS + std::string password_after = std::string(get_password()); + ADA_ASSERT_EQUAL( + password_expected, password_after, + "append_base_password problem after inserting " + std::string(input)); +#endif // ADA_DEVELOPMENT_CHECKS + ADA_ASSERT_TRUE(validate()); +} + +inline void url_aggregator::update_base_port(uint32_t input) { + ada_log("url_aggregator::update_base_port"); + ADA_ASSERT_TRUE(validate()); + if (input == url_components::omitted) { + clear_port(); + return; + } + // calling std::to_string(input.value()) is unfortunate given that the port + // value is probably already available as a string. + std::string value = helpers::concat(":", std::to_string(input)); + uint32_t difference = uint32_t(value.size()); + + if (components.port != url_components::omitted) { + difference -= components.pathname_start - components.host_end; + buffer.erase(components.host_end, + components.pathname_start - components.host_end); + } + + buffer.insert(components.host_end, value); + components.pathname_start += difference; + if (components.search_start != url_components::omitted) { + components.search_start += difference; + } + if (components.hash_start != url_components::omitted) { + components.hash_start += difference; + } + components.port = input; + ADA_ASSERT_TRUE(validate()); +} + +inline void url_aggregator::clear_port() { + ada_log("url_aggregator::clear_port"); + ADA_ASSERT_TRUE(validate()); + if (components.port == url_components::omitted) { + return; + } + uint32_t length = components.pathname_start - components.host_end; + buffer.erase(components.host_end, length); + components.pathname_start -= length; + if (components.search_start != url_components::omitted) { + components.search_start -= length; + } + if (components.hash_start != url_components::omitted) { + components.hash_start -= length; + } + components.port = url_components::omitted; + ADA_ASSERT_TRUE(validate()); +} + +[[nodiscard]] inline uint32_t url_aggregator::retrieve_base_port() const { + ada_log("url_aggregator::retrieve_base_port"); + return components.port; +} + +inline void url_aggregator::clear_search() { + ada_log("url_aggregator::clear_search"); + ADA_ASSERT_TRUE(validate()); + if (components.search_start == url_components::omitted) { + return; + } + + if (components.hash_start == url_components::omitted) { + buffer.resize(components.search_start); + } else { + buffer.erase(components.search_start, + components.hash_start - components.search_start); + components.hash_start = components.search_start; + } + + components.search_start = url_components::omitted; + +#if ADA_DEVELOPMENT_CHECKS + ADA_ASSERT_EQUAL(get_search(), "", + "search should have been cleared on buffer=" + buffer + + " with " + components.to_string() + "\n" + to_diagram()); +#endif + ADA_ASSERT_TRUE(validate()); +} + +inline void url_aggregator::clear_hash() { + ada_log("url_aggregator::clear_hash"); + ADA_ASSERT_TRUE(validate()); + if (components.hash_start == url_components::omitted) { + return; + } + buffer.resize(components.hash_start); + components.hash_start = url_components::omitted; + +#if ADA_DEVELOPMENT_CHECKS + ADA_ASSERT_EQUAL(get_hash(), "", + "hash should have been cleared on buffer=" + buffer + + " with " + components.to_string() + "\n" + to_diagram()); +#endif + ADA_ASSERT_TRUE(validate()); +} + +inline void url_aggregator::clear_pathname() { + ada_log("url_aggregator::clear_pathname"); + ADA_ASSERT_TRUE(validate()); + uint32_t ending_index = uint32_t(buffer.size()); + if (components.search_start != url_components::omitted) { + ending_index = components.search_start; + } else if (components.hash_start != url_components::omitted) { + ending_index = components.hash_start; + } + uint32_t pathname_length = ending_index - components.pathname_start; + buffer.erase(components.pathname_start, pathname_length); + uint32_t difference = pathname_length; + if (components.pathname_start == components.host_end + 2 && + buffer[components.host_end] == '/' && + buffer[components.host_end + 1] == '.') { + components.pathname_start -= 2; + buffer.erase(components.host_end, 2); + difference += 2; + } + if (components.search_start != url_components::omitted) { + components.search_start -= difference; + } + if (components.hash_start != url_components::omitted) { + components.hash_start -= difference; + } + ada_log("url_aggregator::clear_pathname completed, running checks..."); +#if ADA_DEVELOPMENT_CHECKS + ADA_ASSERT_EQUAL(get_pathname(), "", + "pathname should have been cleared on buffer=" + buffer + + " with " + components.to_string() + "\n" + to_diagram()); +#endif + ADA_ASSERT_TRUE(validate()); + ada_log("url_aggregator::clear_pathname completed, running checks... ok"); +} + +inline void url_aggregator::clear_hostname() { + ada_log("url_aggregator::clear_hostname"); + ADA_ASSERT_TRUE(validate()); + if (!has_authority()) { + return; + } + ADA_ASSERT_TRUE(has_authority()); + + uint32_t hostname_length = components.host_end - components.host_start; + uint32_t start = components.host_start; + + // If hostname starts with "@", we should not remove that character. + if (hostname_length > 0 && buffer[start] == '@') { + start++; + hostname_length--; + } + buffer.erase(start, hostname_length); + components.host_end = start; + components.pathname_start -= hostname_length; + if (components.search_start != url_components::omitted) { + components.search_start -= hostname_length; + } + if (components.hash_start != url_components::omitted) { + components.hash_start -= hostname_length; + } +#if ADA_DEVELOPMENT_CHECKS + ADA_ASSERT_EQUAL(get_hostname(), "", + "hostname should have been cleared on buffer=" + buffer + + " with " + components.to_string() + "\n" + to_diagram()); +#endif + ADA_ASSERT_TRUE(has_authority()); + ADA_ASSERT_EQUAL(has_empty_hostname(), true, + "hostname should have been cleared on buffer=" + buffer + + " with " + components.to_string() + "\n" + to_diagram()); + ADA_ASSERT_TRUE(validate()); +} + +[[nodiscard]] inline bool url_aggregator::has_hash() const noexcept { + ada_log("url_aggregator::has_hash"); + return components.hash_start != url_components::omitted; +} + +[[nodiscard]] inline bool url_aggregator::has_search() const noexcept { + ada_log("url_aggregator::has_search"); + return components.search_start != url_components::omitted; +} + +ada_really_inline bool url_aggregator::has_credentials() const noexcept { + ada_log("url_aggregator::has_credentials"); + return has_non_empty_username() || has_non_empty_password(); +} + +inline bool url_aggregator::cannot_have_credentials_or_port() const { + ada_log("url_aggregator::cannot_have_credentials_or_port"); + return type == ada::scheme::type::FILE || + components.host_start == components.host_end; +} + +[[nodiscard]] ada_really_inline const ada::url_components & +url_aggregator::get_components() const noexcept { + return components; +} + +[[nodiscard]] inline bool ada::url_aggregator::has_authority() const noexcept { + ada_log("url_aggregator::has_authority"); + // Performance: instead of doing this potentially expensive check, we could + // have a boolean in the struct. + return components.protocol_end + 2 <= components.host_start && + helpers::substring(buffer, components.protocol_end, + components.protocol_end + 2) == "//"; +} + +inline void ada::url_aggregator::add_authority_slashes_if_needed() noexcept { + ada_log("url_aggregator::add_authority_slashes_if_needed"); + ADA_ASSERT_TRUE(validate()); + // Protocol setter will insert `http:` to the URL. It is up to hostname setter + // to insert + // `//` initially to the buffer, since it depends on the hostname existence. + if (has_authority()) { + return; + } + // Performance: the common case is components.protocol_end == buffer.size() + // Optimization opportunity: in many cases, the "//" is part of the input and + // the insert could be fused with another insert. + buffer.insert(components.protocol_end, "//"); + components.username_end += 2; + components.host_start += 2; + components.host_end += 2; + components.pathname_start += 2; + if (components.search_start != url_components::omitted) { + components.search_start += 2; + } + if (components.hash_start != url_components::omitted) { + components.hash_start += 2; + } + ADA_ASSERT_TRUE(validate()); +} + +inline void ada::url_aggregator::reserve(uint32_t capacity) { + buffer.reserve(capacity); +} + +inline bool url_aggregator::has_non_empty_username() const noexcept { + ada_log("url_aggregator::has_non_empty_username"); + return components.protocol_end + 2 < components.username_end; +} + +inline bool url_aggregator::has_non_empty_password() const noexcept { + ada_log("url_aggregator::has_non_empty_password"); + return components.host_start - components.username_end > 0; +} + +inline bool url_aggregator::has_password() const noexcept { + ada_log("url_aggregator::has_password"); + // This function does not care about the length of the password + return components.host_start > components.username_end && + buffer[components.username_end] == ':'; +} + +inline bool url_aggregator::has_empty_hostname() const noexcept { + if (!has_hostname()) { + return false; + } + if (components.host_start == components.host_end) { + return true; + } + if (components.host_end > components.host_start + 1) { + return false; + } + return components.username_end != components.host_start; +} + +inline bool url_aggregator::has_hostname() const noexcept { + return has_authority(); +} + +inline bool url_aggregator::has_port() const noexcept { + ada_log("url_aggregator::has_port"); + // A URL cannot have a username/password/port if its host is null or the empty + // string, or its scheme is "file". + return has_hostname() && components.pathname_start != components.host_end; +} + +[[nodiscard]] inline bool url_aggregator::has_dash_dot() const noexcept { + // If url's host is null, url does not have an opaque path, url's path's size + // is greater than 1, and url's path[0] is the empty string, then append + // U+002F (/) followed by U+002E (.) to output. + ada_log("url_aggregator::has_dash_dot"); +#if ADA_DEVELOPMENT_CHECKS + // If pathname_start and host_end are exactly two characters apart, then we + // either have a one-digit port such as http://test.com:5?param=1 or else we + // have a /.: sequence such as "non-spec:/.//". We test that this is the case. + if (components.pathname_start == components.host_end + 2) { + ADA_ASSERT_TRUE((buffer[components.host_end] == '/' && + buffer[components.host_end + 1] == '.') || + (buffer[components.host_end] == ':' && + checkers::is_digit(buffer[components.host_end + 1]))); + } + if (components.pathname_start == components.host_end + 2 && + buffer[components.host_end] == '/' && + buffer[components.host_end + 1] == '.') { + ADA_ASSERT_TRUE(components.pathname_start + 1 < buffer.size()); + ADA_ASSERT_TRUE(buffer[components.pathname_start] == '/'); + ADA_ASSERT_TRUE(buffer[components.pathname_start + 1] == '/'); + } +#endif + // Performance: it should be uncommon for components.pathname_start == + // components.host_end + 2 to be true. So we put this check first in the + // sequence. Most times, we do not have an opaque path. Checking for '/.' is + // more expensive, but should be uncommon. + return components.pathname_start == components.host_end + 2 && + !has_opaque_path && buffer[components.host_end] == '/' && + buffer[components.host_end + 1] == '.'; +} + +[[nodiscard]] inline std::string_view url_aggregator::get_href() + const noexcept { + ada_log("url_aggregator::get_href"); + return buffer; +} + +ada_really_inline size_t url_aggregator::parse_port( + std::string_view view, bool check_trailing_content) noexcept { + ada_log("url_aggregator::parse_port('", view, "') ", view.size()); + uint16_t parsed_port{}; + auto r = std::from_chars(view.data(), view.data() + view.size(), parsed_port); + if (r.ec == std::errc::result_out_of_range) { + ada_log("parse_port: std::errc::result_out_of_range"); + is_valid = false; + return 0; + } + ada_log("parse_port: ", parsed_port); + const size_t consumed = size_t(r.ptr - view.data()); + ada_log("parse_port: consumed ", consumed); + if (check_trailing_content) { + is_valid &= + (consumed == view.size() || view[consumed] == '/' || + view[consumed] == '?' || (is_special() && view[consumed] == '\\')); + } + ada_log("parse_port: is_valid = ", is_valid); + if (is_valid) { + ada_log("parse_port", r.ec == std::errc()); + // scheme_default_port can return 0, and we should allow 0 as a base port. + auto default_port = scheme_default_port(); + bool is_port_valid = (default_port == 0 && parsed_port == 0) || + (default_port != parsed_port); + if (r.ec == std::errc() && is_port_valid) { + update_base_port(parsed_port); + } else { + clear_port(); + } + } + return consumed; +} + +inline void url_aggregator::set_protocol_as_file() { + ada_log("url_aggregator::set_protocol_as_file "); + ADA_ASSERT_TRUE(validate()); + type = ada::scheme::type::FILE; + // next line could overflow but unsigned arithmetic has well-defined + // overflows. + uint32_t new_difference = 5 - components.protocol_end; + + if (buffer.empty()) { + buffer.append("file:"); + } else { + buffer.erase(0, components.protocol_end); + buffer.insert(0, "file:"); + } + components.protocol_end = 5; + + // Update the rest of the components. + components.username_end += new_difference; + components.host_start += new_difference; + components.host_end += new_difference; + components.pathname_start += new_difference; + if (components.search_start != url_components::omitted) { + components.search_start += new_difference; + } + if (components.hash_start != url_components::omitted) { + components.hash_start += new_difference; + } + ADA_ASSERT_TRUE(validate()); +} + +inline std::ostream &operator<<(std::ostream &out, + const ada::url_aggregator &u) { + return out << u.to_string(); +} +} // namespace ada + +#endif // ADA_URL_AGGREGATOR_INL_H +/* end file include/ada/url_aggregator-inl.h */ +/* begin file include/ada/url_search_params.h */ +/** + * @file url_search_params.h + * @brief Declaration for the URL Search Params + */ +#ifndef ADA_URL_SEARCH_PARAMS_H +#define ADA_URL_SEARCH_PARAMS_H + +#include +#include +#include +#include + +namespace ada { + +enum class url_search_params_iter_type { + KEYS, + VALUES, + ENTRIES, +}; + +template +struct url_search_params_iter; + +typedef std::pair key_value_view_pair; + +using url_search_params_keys_iter = + url_search_params_iter; +using url_search_params_values_iter = + url_search_params_iter; +using url_search_params_entries_iter = + url_search_params_iter; + +/** + * @see https://url.spec.whatwg.org/#interface-urlsearchparams + */ +struct url_search_params { + url_search_params() = default; + + /** + * @see + * https://github.com/web-platform-tests/wpt/blob/master/url/urlsearchparams-constructor.any.js + */ + url_search_params(const std::string_view input) { initialize(input); } + + url_search_params(const url_search_params &u) = default; + url_search_params(url_search_params &&u) noexcept = default; + url_search_params &operator=(url_search_params &&u) noexcept = default; + url_search_params &operator=(const url_search_params &u) = default; + ~url_search_params() = default; + + [[nodiscard]] inline size_t size() const noexcept; + + /** + * @see https://url.spec.whatwg.org/#dom-urlsearchparams-append + */ + inline void append(std::string_view key, std::string_view value); + + /** + * @see https://url.spec.whatwg.org/#dom-urlsearchparams-delete + */ + inline void remove(std::string_view key); + inline void remove(std::string_view key, std::string_view value); + + /** + * @see https://url.spec.whatwg.org/#dom-urlsearchparams-get + */ + inline std::optional get(std::string_view key); + + /** + * @see https://url.spec.whatwg.org/#dom-urlsearchparams-getall + */ + inline std::vector get_all(std::string_view key); + + /** + * @see https://url.spec.whatwg.org/#dom-urlsearchparams-has + */ + inline bool has(std::string_view key) noexcept; + inline bool has(std::string_view key, std::string_view value) noexcept; + + /** + * @see https://url.spec.whatwg.org/#dom-urlsearchparams-set + */ + inline void set(std::string_view key, std::string_view value); + + /** + * @see https://url.spec.whatwg.org/#dom-urlsearchparams-sort + */ + inline void sort(); + + /** + * @see https://url.spec.whatwg.org/#urlsearchparams-stringification-behavior + */ + inline std::string to_string(); + + /** + * Returns a simple JS-style iterator over all of the keys in this + * url_search_params. The keys in the iterator are not unique. The valid + * lifespan of the iterator is tied to the url_search_params. The iterator + * must be freed when you're done with it. + * @see https://url.spec.whatwg.org/#interface-urlsearchparams + */ + inline url_search_params_keys_iter get_keys(); + + /** + * Returns a simple JS-style iterator over all of the values in this + * url_search_params. The valid lifespan of the iterator is tied to the + * url_search_params. The iterator must be freed when you're done with it. + * @see https://url.spec.whatwg.org/#interface-urlsearchparams + */ + inline url_search_params_values_iter get_values(); + + /** + * Returns a simple JS-style iterator over all of the entries in this + * url_search_params. The entries are pairs of keys and corresponding values. + * The valid lifespan of the iterator is tied to the url_search_params. The + * iterator must be freed when you're done with it. + * @see https://url.spec.whatwg.org/#interface-urlsearchparams + */ + inline url_search_params_entries_iter get_entries(); + + /** + * C++ style conventional iterator support. const only because we + * do not really want the params to be modified via the iterator. + */ + inline auto begin() const { return params.begin(); } + inline auto end() const { return params.end(); } + inline auto front() const { return params.front(); } + inline auto back() const { return params.back(); } + inline auto operator[](size_t index) const { return params[index]; } + + private: + typedef std::pair key_value_pair; + std::vector params{}; + + /** + * @see https://url.spec.whatwg.org/#concept-urlencoded-parser + */ + void initialize(std::string_view init); + + template + friend struct url_search_params_iter; +}; // url_search_params + +/** + * Implements a non-conventional iterator pattern that is closer in style to + * JavaScript's definition of an iterator. + * + * @see https://webidl.spec.whatwg.org/#idl-iterable + */ +template +struct url_search_params_iter { + inline url_search_params_iter() : params(EMPTY) {} + url_search_params_iter(const url_search_params_iter &u) = default; + url_search_params_iter(url_search_params_iter &&u) noexcept = default; + url_search_params_iter &operator=(url_search_params_iter &&u) noexcept = + default; + url_search_params_iter &operator=(const url_search_params_iter &u) = default; + ~url_search_params_iter() = default; + + /** + * Return the next item in the iterator or std::nullopt if done. + */ + inline std::optional next(); + + inline bool has_next(); + + private: + static url_search_params EMPTY; + inline url_search_params_iter(url_search_params ¶ms_) : params(params_) {} + + url_search_params ¶ms; + size_t pos = 0; + + friend struct url_search_params; +}; + +} // namespace ada +#endif +/* end file include/ada/url_search_params.h */ +/* begin file include/ada/url_search_params-inl.h */ +/** + * @file url_search_params-inl.h + * @brief Inline declarations for the URL Search Params + */ +#ifndef ADA_URL_SEARCH_PARAMS_INL_H +#define ADA_URL_SEARCH_PARAMS_INL_H + + +#include +#include +#include +#include +#include + +namespace ada { + +// A default, empty url_search_params for use with empty iterators. +template +url_search_params url_search_params_iter::EMPTY; + +inline void url_search_params::initialize(std::string_view input) { + if (!input.empty() && input.front() == '?') { + input.remove_prefix(1); + } + + auto process_key_value = [&](const std::string_view current) { + auto equal = current.find('='); + + if (equal == std::string_view::npos) { + auto name = std::string(current); + std::replace(name.begin(), name.end(), '+', ' '); + params.emplace_back(unicode::percent_decode(name, name.find('%')), ""); + } else { + auto name = std::string(current.substr(0, equal)); + auto value = std::string(current.substr(equal + 1)); + + std::replace(name.begin(), name.end(), '+', ' '); + std::replace(value.begin(), value.end(), '+', ' '); + + params.emplace_back(unicode::percent_decode(name, name.find('%')), + unicode::percent_decode(value, value.find('%'))); + } + }; + + while (!input.empty()) { + auto ampersand_index = input.find('&'); + + if (ampersand_index == std::string_view::npos) { + if (!input.empty()) { + process_key_value(input); + } + break; + } else if (ampersand_index != 0) { + process_key_value(input.substr(0, ampersand_index)); + } + + input.remove_prefix(ampersand_index + 1); + } +} + +inline void url_search_params::append(const std::string_view key, + const std::string_view value) { + params.emplace_back(key, value); +} + +inline size_t url_search_params::size() const noexcept { return params.size(); } + +inline std::optional url_search_params::get( + const std::string_view key) { + auto entry = std::find_if(params.begin(), params.end(), + [&key](auto ¶m) { return param.first == key; }); + + if (entry == params.end()) { + return std::nullopt; + } + + return entry->second; +} + +inline std::vector url_search_params::get_all( + const std::string_view key) { + std::vector out{}; + + for (auto ¶m : params) { + if (param.first == key) { + out.emplace_back(param.second); + } + } + + return out; +} + +inline bool url_search_params::has(const std::string_view key) noexcept { + auto entry = std::find_if(params.begin(), params.end(), + [&key](auto ¶m) { return param.first == key; }); + return entry != params.end(); +} + +inline bool url_search_params::has(std::string_view key, + std::string_view value) noexcept { + auto entry = + std::find_if(params.begin(), params.end(), [&key, &value](auto ¶m) { + return param.first == key && param.second == value; + }); + return entry != params.end(); +} + +inline std::string url_search_params::to_string() { + auto character_set = ada::character_sets::WWW_FORM_URLENCODED_PERCENT_ENCODE; + std::string out{}; + for (size_t i = 0; i < params.size(); i++) { + auto key = ada::unicode::percent_encode(params[i].first, character_set); + auto value = ada::unicode::percent_encode(params[i].second, character_set); + + // Performance optimization: Move this inside percent_encode. + std::replace(key.begin(), key.end(), ' ', '+'); + std::replace(value.begin(), value.end(), ' ', '+'); + + if (i != 0) { + out += "&"; + } + out.append(key); + out += "="; + out.append(value); + } + return out; +} + +inline void url_search_params::set(const std::string_view key, + const std::string_view value) { + const auto find = [&key](auto ¶m) { return param.first == key; }; + + auto it = std::find_if(params.begin(), params.end(), find); + + if (it == params.end()) { + params.emplace_back(key, value); + } else { + it->second = value; + params.erase(std::remove_if(std::next(it), params.end(), find), + params.end()); + } +} + +inline void url_search_params::remove(const std::string_view key) { + params.erase( + std::remove_if(params.begin(), params.end(), + [&key](auto ¶m) { return param.first == key; }), + params.end()); +} + +inline void url_search_params::remove(const std::string_view key, + const std::string_view value) { + params.erase(std::remove_if(params.begin(), params.end(), + [&key, &value](auto ¶m) { + return param.first == key && + param.second == value; + }), + params.end()); +} + +inline void url_search_params::sort() { + std::stable_sort(params.begin(), params.end(), + [](const key_value_pair &lhs, const key_value_pair &rhs) { + return lhs.first < rhs.first; + }); +} + +inline url_search_params_keys_iter url_search_params::get_keys() { + return url_search_params_keys_iter(*this); +} + +/** + * @see https://url.spec.whatwg.org/#interface-urlsearchparams + */ +inline url_search_params_values_iter url_search_params::get_values() { + return url_search_params_values_iter(*this); +} + +/** + * @see https://url.spec.whatwg.org/#interface-urlsearchparams + */ +inline url_search_params_entries_iter url_search_params::get_entries() { + return url_search_params_entries_iter(*this); +} + +template +inline bool url_search_params_iter::has_next() { + return pos < params.params.size(); +} + +template <> +inline std::optional url_search_params_keys_iter::next() { + if (!has_next()) return std::nullopt; + return params.params[pos++].first; +} + +template <> +inline std::optional url_search_params_values_iter::next() { + if (!has_next()) return std::nullopt; + return params.params[pos++].second; +} + +template <> +inline std::optional +url_search_params_entries_iter::next() { + if (!has_next()) return std::nullopt; + return params.params[pos++]; +} + +} // namespace ada + +#endif // ADA_URL_SEARCH_PARAMS_INL_H +/* end file include/ada/url_search_params-inl.h */ + +// Public API +/* begin file include/ada/ada_version.h */ +/** + * @file ada_version.h + * @brief Definitions for Ada's version number. + */ +#ifndef ADA_ADA_VERSION_H +#define ADA_ADA_VERSION_H + +#define ADA_VERSION "2.7.4" + +namespace ada { + +enum { + ADA_VERSION_MAJOR = 2, + ADA_VERSION_MINOR = 7, + ADA_VERSION_REVISION = 4, +}; + +} // namespace ada + +#endif // ADA_ADA_VERSION_H +/* end file include/ada/ada_version.h */ +/* begin file include/ada/implementation.h */ +/** + * @file implementation.h + * @brief Definitions for user facing functions for parsing URL and it's + * components. + */ +#ifndef ADA_IMPLEMENTATION_H +#define ADA_IMPLEMENTATION_H + +#include +#include + + +namespace ada { +enum class errors { generic_error }; + +template +using result = tl::expected; + +/** + * The URL parser takes a scalar value string input, with an optional null or + * base URL base (default null). The parser assumes the input is a valid ASCII + * or UTF-8 string. + * + * @param input the string input to analyze (must be valid ASCII or UTF-8) + * @param base_url the optional URL input to use as a base url. + * @return a parsed URL. + */ +template +ada_warn_unused ada::result parse( + std::string_view input, const result_type* base_url = nullptr); + +extern template ada::result parse(std::string_view input, + const url* base_url); +extern template ada::result parse( + std::string_view input, const url_aggregator* base_url); + +/** + * Verifies whether the URL strings can be parsed. The function assumes + * that the inputs are valid ASCII or UTF-8 strings. + * @see https://url.spec.whatwg.org/#dom-url-canparse + * @return If URL can be parsed or not. + */ +bool can_parse(std::string_view input, + const std::string_view* base_input = nullptr); + +/** + * Computes a href string from a file path. The function assumes + * that the input is a valid ASCII or UTF-8 string. + * @return a href string (starts with file:://) + */ +std::string href_from_file(std::string_view path); +} // namespace ada + +#endif // ADA_IMPLEMENTATION_H +/* end file include/ada/implementation.h */ + +#endif // ADA_H +/* end file include/ada.h */ diff --git a/NativeScript/inspector/utils.mm b/NativeScript/inspector/utils.mm index dd7158de..d078e525 100644 --- a/NativeScript/inspector/utils.mm +++ b/NativeScript/inspector/utils.mm @@ -19,6 +19,7 @@ } NSString* fileExtension = [fullPath pathExtension]; + #pragma GCC diagnostic ignored "-Wdeprecated-declarations" CFStringRef uti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, (__bridge CFStringRef)fileExtension, nil); if (uti == nil) { return std::string(); diff --git a/NativeScript/lib/arm64-xros/libcppgc_base.a b/NativeScript/lib/arm64-xros/libcppgc_base.a new file mode 100644 index 00000000..cb3e6489 Binary files /dev/null and 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a/NativeScript/lib/arm64-xros/libinspector_string_conversions.a b/NativeScript/lib/arm64-xros/libinspector_string_conversions.a new file mode 100644 index 00000000..0dc5c7dd Binary files /dev/null and b/NativeScript/lib/arm64-xros/libinspector_string_conversions.a differ diff --git a/NativeScript/lib/arm64-xros/libtorque_generated_definitions.a b/NativeScript/lib/arm64-xros/libtorque_generated_definitions.a new file mode 100644 index 00000000..c4cf4c5b Binary files /dev/null and b/NativeScript/lib/arm64-xros/libtorque_generated_definitions.a differ diff --git a/NativeScript/lib/arm64-xros/libtorque_generated_initializers.a b/NativeScript/lib/arm64-xros/libtorque_generated_initializers.a new file mode 100644 index 00000000..378cd547 Binary files /dev/null and b/NativeScript/lib/arm64-xros/libtorque_generated_initializers.a differ diff --git a/NativeScript/lib/arm64-xros/libv8_base_without_compiler.a b/NativeScript/lib/arm64-xros/libv8_base_without_compiler.a new file mode 100644 index 00000000..8c1828f1 Binary files /dev/null and b/NativeScript/lib/arm64-xros/libv8_base_without_compiler.a differ diff --git a/NativeScript/lib/arm64-xros/libv8_bigint.a b/NativeScript/lib/arm64-xros/libv8_bigint.a new file mode 100644 index 00000000..98f281f6 Binary files /dev/null and b/NativeScript/lib/arm64-xros/libv8_bigint.a differ diff --git a/NativeScript/lib/arm64-xros/libv8_compiler.a b/NativeScript/lib/arm64-xros/libv8_compiler.a new file mode 100644 index 00000000..44c7b5fb Binary files /dev/null and b/NativeScript/lib/arm64-xros/libv8_compiler.a differ diff --git a/NativeScript/lib/arm64-xros/libv8_heap_base.a b/NativeScript/lib/arm64-xros/libv8_heap_base.a new file mode 100644 index 00000000..59b1a6a5 Binary files /dev/null and b/NativeScript/lib/arm64-xros/libv8_heap_base.a differ diff --git a/NativeScript/lib/arm64-xros/libv8_heap_base_headers.a b/NativeScript/lib/arm64-xros/libv8_heap_base_headers.a new file mode 100644 index 00000000..8b277f0d --- /dev/null +++ b/NativeScript/lib/arm64-xros/libv8_heap_base_headers.a @@ -0,0 +1 @@ +! diff --git a/NativeScript/lib/arm64-xros/libv8_libbase.a b/NativeScript/lib/arm64-xros/libv8_libbase.a new file mode 100644 index 00000000..a208611c Binary files /dev/null and b/NativeScript/lib/arm64-xros/libv8_libbase.a differ diff --git a/NativeScript/lib/arm64-xros/libv8_libplatform.a b/NativeScript/lib/arm64-xros/libv8_libplatform.a new file mode 100644 index 00000000..815480a3 Binary files /dev/null and b/NativeScript/lib/arm64-xros/libv8_libplatform.a differ diff --git a/NativeScript/lib/arm64-xros/libv8_snapshot.a b/NativeScript/lib/arm64-xros/libv8_snapshot.a new file mode 100644 index 00000000..030583c0 Binary files /dev/null and b/NativeScript/lib/arm64-xros/libv8_snapshot.a differ diff --git a/NativeScript/lib/arm64-xros/libzip.a b/NativeScript/lib/arm64-xros/libzip.a new file mode 100644 index 00000000..37ba95fe Binary files /dev/null and b/NativeScript/lib/arm64-xros/libzip.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libcppgc_base.a b/NativeScript/lib/arm64-xrsimulator/libcppgc_base.a new file mode 100644 index 00000000..2fbd5303 Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libcppgc_base.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libcrdtp.a b/NativeScript/lib/arm64-xrsimulator/libcrdtp.a new file mode 100644 index 00000000..f1f65a60 Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libcrdtp.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libcrdtp_platform.a b/NativeScript/lib/arm64-xrsimulator/libcrdtp_platform.a new file mode 100644 index 00000000..d87484b8 Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libcrdtp_platform.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libffi.a b/NativeScript/lib/arm64-xrsimulator/libffi.a new file mode 100644 index 00000000..45f9cbf3 Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libffi.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libinspector.a b/NativeScript/lib/arm64-xrsimulator/libinspector.a new file mode 100644 index 00000000..ca0ff003 Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libinspector.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libinspector_string_conversions.a b/NativeScript/lib/arm64-xrsimulator/libinspector_string_conversions.a new file mode 100644 index 00000000..1628db2f Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libinspector_string_conversions.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libtorque_generated_definitions.a b/NativeScript/lib/arm64-xrsimulator/libtorque_generated_definitions.a new file mode 100644 index 00000000..5996ade8 Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libtorque_generated_definitions.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libtorque_generated_initializers.a b/NativeScript/lib/arm64-xrsimulator/libtorque_generated_initializers.a new file mode 100644 index 00000000..4bb03996 Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libtorque_generated_initializers.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libv8_base_without_compiler.a b/NativeScript/lib/arm64-xrsimulator/libv8_base_without_compiler.a new file mode 100644 index 00000000..eea4569f Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libv8_base_without_compiler.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libv8_bigint.a b/NativeScript/lib/arm64-xrsimulator/libv8_bigint.a new file mode 100644 index 00000000..3854a0f3 Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libv8_bigint.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libv8_compiler.a b/NativeScript/lib/arm64-xrsimulator/libv8_compiler.a new file mode 100644 index 00000000..2a07e951 Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libv8_compiler.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libv8_heap_base.a b/NativeScript/lib/arm64-xrsimulator/libv8_heap_base.a new file mode 100644 index 00000000..3f2e9a35 Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libv8_heap_base.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libv8_heap_base_headers.a b/NativeScript/lib/arm64-xrsimulator/libv8_heap_base_headers.a new file mode 100644 index 00000000..8b277f0d --- /dev/null +++ b/NativeScript/lib/arm64-xrsimulator/libv8_heap_base_headers.a @@ -0,0 +1 @@ +! diff --git a/NativeScript/lib/arm64-xrsimulator/libv8_libbase.a b/NativeScript/lib/arm64-xrsimulator/libv8_libbase.a new file mode 100644 index 00000000..ef8df6a2 Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libv8_libbase.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libv8_libplatform.a b/NativeScript/lib/arm64-xrsimulator/libv8_libplatform.a new file mode 100644 index 00000000..9fcbf4bf Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libv8_libplatform.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libv8_snapshot.a b/NativeScript/lib/arm64-xrsimulator/libv8_snapshot.a new file mode 100644 index 00000000..47ccc3cc Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libv8_snapshot.a differ diff --git a/NativeScript/lib/arm64-xrsimulator/libzip.a b/NativeScript/lib/arm64-xrsimulator/libzip.a new file mode 100644 index 00000000..b5660107 Binary files /dev/null and b/NativeScript/lib/arm64-xrsimulator/libzip.a differ diff --git a/NativeScript/runtime/ArgConverter.mm b/NativeScript/runtime/ArgConverter.mm index 06eb7af6..65026dac 100644 --- a/NativeScript/runtime/ArgConverter.mm +++ b/NativeScript/runtime/ArgConverter.mm @@ -93,7 +93,7 @@ Isolate* isolate = data->isolateWrapper_.Isolate(); - if (!Runtime::IsAlive(isolate) || !data->isolateWrapper_.IsValid()) { + if (!data->isolateWrapper_.IsValid()) { memset(retValue, 0, cif->rtype->size); return; } diff --git a/NativeScript/runtime/ArrayAdapter.mm b/NativeScript/runtime/ArrayAdapter.mm index 546bea12..2dfba4ec 100644 --- a/NativeScript/runtime/ArrayAdapter.mm +++ b/NativeScript/runtime/ArrayAdapter.mm @@ -2,63 +2,71 @@ #include "DataWrapper.h" #include "Helpers.h" #include "Interop.h" -#include "Caches.h" +#include "IsolateWrapper.h" using namespace tns; using namespace v8; @implementation ArrayAdapter { - Isolate* isolate_; + IsolateWrapper* wrapper_; std::shared_ptr> object_; - std::shared_ptr cache_; + // we're responsible for this wrapper + ObjCDataWrapper* dataWrapper_; } - (instancetype)initWithJSObject:(Local)jsObject isolate:(Isolate*)isolate { if (self) { - self->isolate_ = isolate; - self->cache_ = Caches::Get(isolate); + self->wrapper_ = new IsolateWrapper(isolate); self->object_ = std::make_shared>(isolate, jsObject); - self->cache_->Instances.emplace(self, self->object_); - tns::SetValue(isolate, jsObject, new ObjCDataWrapper(self)); + self->wrapper_->GetCache()->Instances.emplace(self, self->object_); + tns::SetValue(isolate, jsObject, (self->dataWrapper_ = new ObjCDataWrapper(self))); } - + return self; } - (NSUInteger)count { - v8::Locker locker(self->isolate_); - Isolate::Scope isolate_scope(self->isolate_); - HandleScope handle_scope(self->isolate_); - - Local object = self->object_->Get(self->isolate_).As(); + auto isolate = wrapper_->Isolate(); + if(!wrapper_->IsValid()) { + return 0; + } + v8::Locker locker(isolate); + Isolate::Scope isolate_scope(isolate); + HandleScope handle_scope(isolate); + + Local object = self->object_->Get(isolate).As(); if (object->IsArray()) { uint32_t length = object.As()->Length(); return length; } - - Local context = self->cache_->GetContext(); + + Local context = wrapper_->GetCache()->GetContext(); Local propertyNames; bool success = object->GetPropertyNames(context).ToLocal(&propertyNames); - tns::Assert(success, self->isolate_); + tns::Assert(success, isolate); uint32_t length = propertyNames->Length(); return length; } - (id)objectAtIndex:(NSUInteger)index { - v8::Locker locker(self->isolate_); - Isolate::Scope isolate_scope(self->isolate_); - HandleScope handle_scope(self->isolate_); - + auto isolate = wrapper_->Isolate(); + if (!wrapper_->IsValid()) { + return nil; + } + v8::Locker locker(isolate); + Isolate::Scope isolate_scope(isolate); + HandleScope handle_scope(isolate); + if (!(index < [self count])) { - tns::Assert(false, self->isolate_); + tns::Assert(false, isolate); } - - Local object = self->object_->Get(self->isolate_).As(); - Local context = self->cache_->GetContext(); + + Local object = self->object_->Get(isolate).As(); + Local context = wrapper_->GetCache()->GetContext(); Local item; bool success = object->Get(context, (uint)index).ToLocal(&item); - tns::Assert(success, self->isolate_); - + tns::Assert(success, isolate); + if (item->IsNullOrUndefined()) { return nil; } @@ -68,16 +76,29 @@ - (id)objectAtIndex:(NSUInteger)index { } - (void)dealloc { - self->cache_->Instances.erase(self); - Local value = self->object_->Get(self->isolate_); - BaseDataWrapper* wrapper = tns::GetValue(self->isolate_, value); - if (wrapper != nullptr) { - tns::DeleteValue(self->isolate_, value); - delete wrapper; + if (wrapper_->IsValid()) { + auto isolate = wrapper_->Isolate(); + v8::Locker locker(isolate); + Isolate::Scope isolate_scope(isolate); + HandleScope handle_scope(isolate); + wrapper_->GetCache()->Instances.erase(self); + Local value = self->object_->Get(isolate); + BaseDataWrapper* wrapper = tns::GetValue(isolate, value); + if (wrapper != nullptr) { + tns::DeleteValue(isolate, value); + // ensure we don't delete the same wrapper twice + // this is just needed as a failsafe in case some other wrapper is assigned to this object + if (wrapper == dataWrapper_) { + dataWrapper_ = nullptr; + } + delete wrapper; + } + self->object_->Reset(); + } + delete wrapper_; + if (dataWrapper_ != nullptr) { + delete dataWrapper_; } - self->object_->Reset(); - self->isolate_ = nullptr; - self->cache_ = nullptr; self->object_ = nullptr; [super dealloc]; } diff --git a/NativeScript/runtime/Caches.h b/NativeScript/runtime/Caches.h index 96958c53..2126410c 100644 --- a/NativeScript/runtime/Caches.h +++ b/NativeScript/runtime/Caches.h @@ -48,6 +48,8 @@ class Caches { Caches(v8::Isolate* isolate, const int& isolateId_ = -1); ~Caches(); + + bool isWorker = false; static std::shared_ptr> Metadata; static std::shared_ptr>> Workers; @@ -73,6 +75,14 @@ class Caches { return isolateId_; } + inline void InvalidateIsolate() { + isolateId_ = -1; + } + + inline bool IsValid() { + return isolateId_ != -1; + } + void SetContext(v8::Local context); v8::Local GetContext(); diff --git a/NativeScript/runtime/ClassBuilder.mm b/NativeScript/runtime/ClassBuilder.mm index 0f31ee08..eb106915 100644 --- a/NativeScript/runtime/ClassBuilder.mm +++ b/NativeScript/runtime/ClassBuilder.mm @@ -227,7 +227,7 @@ cache->CtorFuncs.emplace(extendedClassName, poExtendedClassCtorFunc); IMP newInitialize = imp_implementationWithBlock(^(id self) { - if (!Runtime::IsAlive(isolate) || !isolateWrapper.IsValid()) { + if (!isolateWrapper.IsValid()) { return; } v8::Locker locker(isolate); @@ -264,7 +264,7 @@ /// in order to make both of them destroyable/GC-able. When the JavaScript object is GC-ed we release the native counterpart as well. void (*retain)(id, SEL) = (void (*)(id, SEL))FindNotOverridenMethod(extendedClass, @selector(retain)); IMP newRetain = imp_implementationWithBlock(^(id self) { - if (!Runtime::IsAlive(isolate) || !isolateWrapper.IsValid()) { + if (!isolateWrapper.IsValid()) { return retain(self, @selector(retain)); } if ([self retainCount] == 1) { @@ -289,7 +289,7 @@ void (*release)(id, SEL) = (void (*)(id, SEL))FindNotOverridenMethod(extendedClass, @selector(release)); IMP newRelease = imp_implementationWithBlock(^(id self) { - if (!Runtime::IsAlive(isolate) || !isolateWrapper.IsValid()) { + if (!isolateWrapper.IsValid()) { release(self, @selector(release)); return; } diff --git a/NativeScript/runtime/ConcurrentQueue.cpp b/NativeScript/runtime/ConcurrentQueue.cpp index 8b361838..24721114 100644 --- a/NativeScript/runtime/ConcurrentQueue.cpp +++ b/NativeScript/runtime/ConcurrentQueue.cpp @@ -14,7 +14,7 @@ void ConcurrentQueue::Initialize(CFRunLoopRef runLoop, void (*performWork)(void* CFRunLoopAddSource(this->runLoop_, this->runLoopTasksSource_, kCFRunLoopCommonModes); } -void ConcurrentQueue::Push(std::string message) { +void ConcurrentQueue::Push(std::shared_ptr message) { if (this->runLoopTasksSource_ != nullptr && !CFRunLoopSourceIsValid(this->runLoopTasksSource_)) { return; } @@ -27,12 +27,12 @@ void ConcurrentQueue::Push(std::string message) { this->SignalAndWakeUp(); } -std::vector ConcurrentQueue::PopAll() { +std::vector> ConcurrentQueue::PopAll() { std::unique_lock mlock(this->mutex_); - std::vector messages; + std::vector> messages; while (!this->messagesQueue_.empty()) { - std::string message = this->messagesQueue_.front(); + std::shared_ptr message = this->messagesQueue_.front(); this->messagesQueue_.pop(); messages.push_back(message); } diff --git a/NativeScript/runtime/ConcurrentQueue.h b/NativeScript/runtime/ConcurrentQueue.h index 75bc74e4..84dff251 100644 --- a/NativeScript/runtime/ConcurrentQueue.h +++ b/NativeScript/runtime/ConcurrentQueue.h @@ -6,17 +6,18 @@ #include #include #include +#include "Message.hpp" namespace tns { struct ConcurrentQueue { public: void Initialize(CFRunLoopRef runLoop, void (*performWork)(void*), void* info); - void Push(std::string message); - std::vector PopAll(); + void Push(std::shared_ptr message); + std::vector> PopAll(); void Terminate(); private: - std::queue messagesQueue_; + std::queue> messagesQueue_; CFRunLoopSourceRef runLoopTasksSource_ = nullptr; CFRunLoopRef runLoop_ = nullptr; bool terminated = false; diff --git a/NativeScript/runtime/DataWrapper.h b/NativeScript/runtime/DataWrapper.h index 0d655b24..9b9c05f3 100644 --- a/NativeScript/runtime/DataWrapper.h +++ b/NativeScript/runtime/DataWrapper.h @@ -654,12 +654,12 @@ class ExtVectorWrapper: public BaseDataWrapper { class WorkerWrapper: public BaseDataWrapper { public: - WorkerWrapper(v8::Isolate* mainIsolate, std::function thiz, std::string)> onMessage); + WorkerWrapper(v8::Isolate* mainIsolate, std::function thiz, std::shared_ptr)> onMessage); void Start(std::shared_ptr> poWorker, std::function func); void CallOnErrorHandlers(v8::TryCatch& tc); void PassUncaughtExceptionFromWorkerToMain(v8::Local context, v8::TryCatch& tc, bool async = true); - void PostMessage(std::string message); + void PostMessage(std::shared_ptr message); void Close(); void Terminate(); @@ -691,7 +691,7 @@ class WorkerWrapper: public BaseDataWrapper { std::atomic isTerminating_; bool isDisposed_; bool isWeak_; - std::function thiz, std::string)> onMessage_; + std::function thiz, std::shared_ptr)> onMessage_; std::shared_ptr> poWorker_; ConcurrentQueue queue_; static std::atomic nextId_; diff --git a/NativeScript/runtime/DictionaryAdapter.mm b/NativeScript/runtime/DictionaryAdapter.mm index ca95a005..f6e85ce6 100644 --- a/NativeScript/runtime/DictionaryAdapter.mm +++ b/NativeScript/runtime/DictionaryAdapter.mm @@ -4,6 +4,7 @@ #include "Helpers.h" #include "Interop.h" #include "Caches.h" +#include "IsolateWrapper.h" using namespace v8; using namespace tns; @@ -15,30 +16,31 @@ - (instancetype)initWithMap:(std::shared_ptr>)map isolate:(Iso @end @implementation DictionaryAdapterMapKeysEnumerator { - Isolate* isolate_; + IsolateWrapper* wrapper_; uint32_t index_; std::shared_ptr> map_; - std::shared_ptr cache_; } - (instancetype)initWithMap:(std::shared_ptr>)map isolate:(Isolate*)isolate cache:(std::shared_ptr)cache { if (self) { - self->isolate_ = isolate; + self->wrapper_ = new IsolateWrapper(isolate); self->index_ = 0; self->map_ = map; - self->cache_ = cache; } return self; } - (id)nextObject { - Isolate* isolate = self->isolate_; + if (!wrapper_->IsValid()) { + return nil; + } + Isolate* isolate = wrapper_->Isolate(); v8::Locker locker(isolate); Isolate::Scope isolate_scope(isolate); HandleScope handle_scope(isolate); - Local context = self->cache_->GetContext(); + Local context = wrapper_->GetCache()->GetContext(); Local array = self->map_->Get(isolate).As()->AsArray(); if (self->index_ < array->Length() - 1) { @@ -46,7 +48,7 @@ - (id)nextObject { bool success = array->Get(context, self->index_).ToLocal(&key); tns::Assert(success, isolate); self->index_ += 2; - NSString* result = tns::ToNSString(self->isolate_, key); + NSString* result = tns::ToNSString(isolate, key); return result; } @@ -54,9 +56,8 @@ - (id)nextObject { } - (void)dealloc { - self->isolate_ = nullptr; self->map_ = nil; - self->cache_ = nil; + delete self->wrapper_; [super dealloc]; } @@ -71,49 +72,51 @@ - (instancetype)initWithProperties:(std::shared_ptr>)dictionar @end @implementation DictionaryAdapterObjectKeysEnumerator { - Isolate* isolate_; + IsolateWrapper* wrapper_; std::shared_ptr> dictionary_; NSUInteger index_; - std::shared_ptr cache_; } - (instancetype)initWithProperties:(std::shared_ptr>)dictionary isolate:(Isolate*)isolate cache:(std::shared_ptr)cache { if (self) { - self->isolate_ = isolate; + self->wrapper_ = new IsolateWrapper(isolate); self->dictionary_ = dictionary; self->index_ = 0; - self->cache_ = cache; } return self; } - (Local)getProperties { - v8::Locker locker(self->isolate_); - Isolate::Scope isolate_scope(self->isolate_); - EscapableHandleScope handle_scope(self->isolate_); + Isolate* isolate = wrapper_->Isolate(); + v8::Locker locker(isolate); + Isolate::Scope isolate_scope(isolate); + EscapableHandleScope handle_scope(isolate); - Local context = self->cache_->GetContext(); + Local context = wrapper_->GetCache()->GetContext(); Local properties; - Local dictionary = self->dictionary_->Get(self->isolate_).As(); - tns::Assert(dictionary->GetOwnPropertyNames(context).ToLocal(&properties), self->isolate_); + Local dictionary = self->dictionary_->Get(isolate).As(); + tns::Assert(dictionary->GetOwnPropertyNames(context).ToLocal(&properties), isolate); return handle_scope.Escape(properties); } - (id)nextObject { - Isolate* isolate = self->isolate_; + if (!wrapper_->IsValid()) { + return nil; + } + Isolate* isolate = wrapper_->Isolate(); v8::Locker locker(isolate); Isolate::Scope isolate_scope(isolate); HandleScope handle_scope(isolate); - Local context = self->cache_->GetContext(); + Local context = wrapper_->GetCache()->GetContext(); Local properties = [self getProperties]; if (self->index_ < properties->Length()) { Local value; bool success = properties->Get(context, (uint)self->index_).ToLocal(&value); tns::Assert(success, isolate); self->index_++; - std::string result = tns::ToString(self->isolate_, value); + std::string result = tns::ToString(isolate, value); return [NSString stringWithUTF8String:result.c_str()]; } @@ -121,19 +124,22 @@ - (id)nextObject { } - (NSArray*)allObjects { - Isolate* isolate = self->isolate_; + if (!wrapper_->IsValid()) { + return nil; + } + Isolate* isolate = wrapper_->Isolate(); v8::Locker locker(isolate); Isolate::Scope isolate_scope(isolate); HandleScope handle_scope(isolate); - Local context = self->cache_->GetContext(); + Local context = wrapper_->GetCache()->GetContext(); NSMutableArray* array = [NSMutableArray array]; Local properties = [self getProperties]; for (int i = 0; i < properties->Length(); i++) { Local value; bool success = properties->Get(context, i).ToLocal(&value); tns::Assert(success, isolate); - std::string result = tns::ToString(self->isolate_, value); + std::string result = tns::ToString(isolate, value); [array addObject:[NSString stringWithUTF8String:result.c_str()]]; } @@ -141,9 +147,8 @@ - (NSArray*)allObjects { } - (void)dealloc { - self->isolate_ = nullptr; self->dictionary_ = nil; - self->cache_ = nil; + delete self->wrapper_; [super dealloc]; } @@ -151,38 +156,40 @@ - (void)dealloc { @end @implementation DictionaryAdapter { - Isolate* isolate_; + IsolateWrapper* wrapper_; std::shared_ptr> object_; - std::shared_ptr cache_; - NSEnumerator* enumerator_; + ObjCDataWrapper* dataWrapper_; } - (instancetype)initWithJSObject:(Local)jsObject isolate:(Isolate*)isolate { if (self) { - self->isolate_ = isolate; - self->cache_ = Caches::Get(isolate); + self->wrapper_ = new IsolateWrapper(isolate); self->object_ = std::make_shared>(isolate, jsObject); - self->cache_->Instances.emplace(self, self->object_); - tns::SetValue(isolate, jsObject, new ObjCDataWrapper(self)); + self->wrapper_->GetCache()->Instances.emplace(self, self->object_); + tns::SetValue(isolate, jsObject, (self->dataWrapper_ = new ObjCDataWrapper(self))); } return self; } - (NSUInteger)count { - v8::Locker locker(self->isolate_); - Isolate::Scope isolate_scope(self->isolate_); - HandleScope handle_scope(self->isolate_); + if (!wrapper_->IsValid()) { + return 0; + } + Isolate* isolate = wrapper_->Isolate(); + v8::Locker locker(isolate); + Isolate::Scope isolate_scope(isolate); + HandleScope handle_scope(isolate); - Local obj = self->object_->Get(self->isolate_).As(); + Local obj = self->object_->Get(isolate).As(); if (obj->IsMap()) { return obj.As()->Size(); } - Local context = self->cache_->GetContext(); + Local context = wrapper_->GetCache()->GetContext(); Local properties; - tns::Assert(obj->GetOwnPropertyNames(context).ToLocal(&properties), self->isolate_); + tns::Assert(obj->GetOwnPropertyNames(context).ToLocal(&properties), isolate); uint32_t length = properties->Length(); @@ -190,13 +197,16 @@ - (NSUInteger)count { } - (id)objectForKey:(id)aKey { - Isolate* isolate = self->isolate_; + if (!wrapper_->IsValid()) { + return nil; + } + Isolate* isolate = wrapper_->Isolate(); v8::Locker locker(isolate); Isolate::Scope isolate_scope(isolate); HandleScope handle_scope(isolate); - Local context = self->cache_->GetContext(); - Local obj = self->object_->Get(self->isolate_).As(); + Local context = wrapper_->GetCache()->GetContext(); + Local obj = self->object_->Get(isolate).As(); Local value; if ([aKey isKindOfClass:[NSNumber class]]) { @@ -226,42 +236,45 @@ - (id)objectForKey:(id)aKey { } - (NSEnumerator*)keyEnumerator { - v8::Locker locker(self->isolate_); - Isolate::Scope isolate_scope(self->isolate_); - HandleScope handle_scope(self->isolate_); + if (!wrapper_->IsValid()) { + return nil; + } + Isolate* isolate = wrapper_->Isolate(); + v8::Locker locker(isolate); + Isolate::Scope isolate_scope(isolate); + HandleScope handle_scope(isolate); - Local obj = self->object_->Get(self->isolate_); + Local obj = self->object_->Get(isolate); if (obj->IsMap()) { - self->enumerator_ = [[[DictionaryAdapterMapKeysEnumerator alloc] initWithMap:self->object_ isolate:self->isolate_ cache:self->cache_] autorelease]; - - return self->enumerator_; + return [[[DictionaryAdapterMapKeysEnumerator alloc] initWithMap:self->object_ isolate:isolate cache:wrapper_->GetCache()] autorelease]; } - - self->enumerator_ = [[[DictionaryAdapterObjectKeysEnumerator alloc] initWithProperties:self->object_ isolate:self->isolate_ cache:self->cache_] autorelease]; - return self->enumerator_; + return [[[DictionaryAdapterObjectKeysEnumerator alloc] initWithProperties:self->object_ isolate:isolate cache:wrapper_->GetCache()] autorelease]; } - (void)dealloc { - self->cache_->Instances.erase(self); - Local value = self->object_->Get(self->isolate_); - BaseDataWrapper* wrapper = tns::GetValue(self->isolate_, value); - if (wrapper != nullptr) { - tns::DeleteValue(self->isolate_, value); - delete wrapper; + if (wrapper_->IsValid()) { + Isolate* isolate = wrapper_->Isolate(); + v8::Locker locker(isolate); + Isolate::Scope isolate_scope(isolate); + HandleScope handle_scope(isolate); + wrapper_->GetCache()->Instances.erase(self); + Local value = self->object_->Get(isolate); + BaseDataWrapper* wrapper = tns::GetValue(isolate, value); + if (wrapper != nullptr) { + if (wrapper == dataWrapper_) { + dataWrapper_ = nullptr; + } + tns::DeleteValue(isolate, value); + delete wrapper; + } } - self->object_->Reset(); - self->isolate_ = nullptr; - self->cache_ = nil; - self->object_ = nil; - - if (self->enumerator_ != nullptr) { - // CFAutorelease(self->enumerator_); - self->enumerator_ = nullptr; + if (dataWrapper_ != nullptr) { + delete dataWrapper_; } - self->cache_ = nullptr; self->object_ = nullptr; + delete self->wrapper_; [super dealloc]; } diff --git a/NativeScript/runtime/Helpers.h b/NativeScript/runtime/Helpers.h index 55464dd7..dc65a88d 100644 --- a/NativeScript/runtime/Helpers.h +++ b/NativeScript/runtime/Helpers.h @@ -19,6 +19,11 @@ namespace tns { inline v8::Local ToV8String(v8::Isolate* isolate,const std::string& value) { return v8::String::NewFromUtf8(isolate, value.c_str(), v8::NewStringType::kNormal, (int)value.length()).ToLocalChecked(); } + + +inline v8::Local ToV8String(v8::Isolate* isolate,const char* value, int length) { + return v8::String::NewFromUtf8(isolate, value, v8::NewStringType::kNormal, length).ToLocalChecked(); +} #ifdef __OBJC__ inline v8::Local ToV8String(v8::Isolate* isolate,const NSString* value) { /* @@ -198,6 +203,199 @@ void Assert(bool condition, v8::Isolate* isolate = nullptr, std::string const &r void StopExecutionAndLogStackTrace(v8::Isolate* isolate); + + + +// Helpers from Node +inline v8::Local OneByteString(v8::Isolate* isolate, + const char* data, + int length) { + return v8::String::NewFromOneByte(isolate, + reinterpret_cast(data), + v8::NewStringType::kNormal, + length).ToLocalChecked(); +} +inline v8::Local OneByteString(v8::Isolate* isolate, + const signed char* data, + int length) { + return v8::String::NewFromOneByte(isolate, + reinterpret_cast(data), + v8::NewStringType::kNormal, + length).ToLocalChecked(); +} +inline v8::Local OneByteString(v8::Isolate* isolate, + const unsigned char* data, + int length) { + return v8::String::NewFromOneByte( + isolate, data, v8::NewStringType::kNormal, length) + .ToLocalChecked(); +} + +// Convenience wrapper around v8::String::NewFromOneByte(). +inline v8::Local OneByteString(v8::Isolate* isolate, + const char* data, + int length = -1); +// For the people that compile with -funsigned-char. +inline v8::Local OneByteString(v8::Isolate* isolate, + const signed char* data, + int length = -1); +inline v8::Local OneByteString(v8::Isolate* isolate, + const unsigned char* data, + int length = -1); + + + +v8::Local NewFunctionTemplate( + v8::Isolate* isolate, + v8::FunctionCallback callback, + v8::Local data = v8::Local(), + v8::Local signature = v8::Local(), + v8::ConstructorBehavior behavior = v8::ConstructorBehavior::kAllow, + v8::SideEffectType side_effect = v8::SideEffectType::kHasSideEffect, + const v8::CFunction* c_function = nullptr); +// Convenience methods for NewFunctionTemplate(). +void SetMethod(v8::Local context, + v8::Local that, + const char* name, + v8::FunctionCallback callback, + v8::Local data = v8::Local()); +// Similar to SetProtoMethod but without receiver signature checks. +void SetMethod(v8::Isolate* isolate, + v8::Local that, + const char* name, + v8::FunctionCallback callback, + v8::Local data = v8::Local()); +void SetFastMethod(v8::Isolate* isolate, + v8::Local that, + const char* name, + v8::FunctionCallback slow_callback, + const v8::CFunction* c_function, + v8::Local data = v8::Local()); +void SetFastMethod(v8::Local context, + v8::Local that, + const char* name, + v8::FunctionCallback slow_callback, + const v8::CFunction* c_function, + v8::Local data = v8::Local()); +void SetFastMethodNoSideEffect(v8::Isolate* isolate, + v8::Local that, + const char* name, + v8::FunctionCallback slow_callback, + const v8::CFunction* c_function, + v8::Local data = v8::Local()); +void SetFastMethodNoSideEffect(v8::Local context, + v8::Local that, + const char* name, + v8::FunctionCallback slow_callback, + const v8::CFunction* c_function, + v8::Local data = v8::Local()); +void SetProtoMethod(v8::Isolate* isolate, + v8::Local that, + const char* name, + v8::FunctionCallback callback, + v8::Local data = v8::Local()); +void SetInstanceMethod(v8::Isolate* isolate, + v8::Local that, + const char* name, + v8::FunctionCallback callback, + v8::Local data = v8::Local()); +// Safe variants denote the function has no side effects. +void SetMethodNoSideEffect(v8::Local context, + v8::Local that, + const char* name, + v8::FunctionCallback callback, + v8::Local data = v8::Local()); +void SetProtoMethodNoSideEffect(v8::Isolate* isolate, + v8::Local that, + const char* name, + v8::FunctionCallback callback, + v8::Local data = v8::Local()); +void SetMethodNoSideEffect(v8::Isolate* isolate, + v8::Local that, + const char* name, + v8::FunctionCallback callback, + v8::Local data = v8::Local()); +enum class SetConstructorFunctionFlag { + NONE, + SET_CLASS_NAME, +}; +void SetConstructorFunction(v8::Local context, + v8::Local that, + const char* name, + v8::Local tmpl, + SetConstructorFunctionFlag flag = + SetConstructorFunctionFlag::SET_CLASS_NAME); +void SetConstructorFunction(v8::Local context, + v8::Local that, + v8::Local name, + v8::Local tmpl, + SetConstructorFunctionFlag flag = + SetConstructorFunctionFlag::SET_CLASS_NAME); +void SetConstructorFunction(v8::Isolate* isolate, + v8::Local that, + const char* name, + v8::Local tmpl, + SetConstructorFunctionFlag flag = + SetConstructorFunctionFlag::SET_CLASS_NAME); +void SetConstructorFunction(v8::Isolate* isolate, + v8::Local that, + v8::Local name, + v8::Local tmpl, + SetConstructorFunctionFlag flag = + SetConstructorFunctionFlag::SET_CLASS_NAME); + + +template +inline v8::Local FIXED_ONE_BYTE_STRING( + v8::Isolate* isolate, + const char(&data)[N]) { + return OneByteString(isolate, data, N - 1); +} + +template +inline v8::Local FIXED_ONE_BYTE_STRING( + v8::Isolate* isolate, + const std::array& arr) { + return OneByteString(isolate, arr.data(), N - 1); +} + +class PersistentToLocal { + public: + // If persistent.IsWeak() == false, then do not call persistent.Reset() + // while the returned Local is still in scope, it will destroy the + // reference to the object. + template + static inline v8::Local Default( + v8::Isolate* isolate, + const v8::PersistentBase& persistent) { + if (persistent.IsWeak()) { + return PersistentToLocal::Weak(isolate, persistent); + } else { + return PersistentToLocal::Strong(persistent); + } + } + + // Unchecked conversion from a non-weak Persistent to Local, + // use with care! + // + // Do not call persistent.Reset() while the returned Local is still in + // scope, it will destroy the reference to the object. + template + static inline v8::Local Strong( + const v8::PersistentBase& persistent) { +// DCHECK(!persistent.IsWeak()); + return *reinterpret_cast*>( + const_cast*>(&persistent)); + } + + template + static inline v8::Local Weak( + v8::Isolate* isolate, + const v8::PersistentBase& persistent) { + return v8::Local::New(isolate, persistent); + } +}; + } #endif /* Helpers_h */ diff --git a/NativeScript/runtime/Helpers.mm b/NativeScript/runtime/Helpers.mm index f98b005d..db93fcb2 100644 --- a/NativeScript/runtime/Helpers.mm +++ b/NativeScript/runtime/Helpers.mm @@ -679,3 +679,283 @@ void tns::StopExecutionAndLogStackTrace(v8::Isolate* isolate) { Assert(false, isolate); } + + +namespace tns { +Local NewFunctionTemplate( + v8::Isolate* isolate, + v8::FunctionCallback callback, + Local data, + Local signature, + v8::ConstructorBehavior behavior, + v8::SideEffectType side_effect_type, + const v8::CFunction* c_function) { + return v8::FunctionTemplate::New(isolate, + callback, + data, + signature, + 0, + behavior, + side_effect_type, + c_function); +} +void SetMethod(Local context, + Local that, + const char* name, + v8::FunctionCallback callback, + Local data) { + Isolate* isolate = context->GetIsolate(); + Local function = + NewFunctionTemplate(isolate, + callback, + data, + Local(), + v8::ConstructorBehavior::kThrow, + v8::SideEffectType::kHasSideEffect) + ->GetFunction(context) + .ToLocalChecked(); + // kInternalized strings are created in the old space. + const v8::NewStringType type = v8::NewStringType::kInternalized; + Local name_string = + v8::String::NewFromUtf8(isolate, name, type).ToLocalChecked(); + that->Set(context, name_string, function).Check(); + function->SetName(name_string); // NODE_SET_METHOD() compatibility. +} +void SetMethod(v8::Isolate* isolate, + v8::Local that, + const char* name, + v8::FunctionCallback callback, + Local data) { + Local t = + NewFunctionTemplate(isolate, + callback, + data, + Local(), + v8::ConstructorBehavior::kThrow, + v8::SideEffectType::kHasSideEffect); + // kInternalized strings are created in the old space. + const v8::NewStringType type = v8::NewStringType::kInternalized; + Local name_string = + v8::String::NewFromUtf8(isolate, name, type).ToLocalChecked(); + that->Set(name_string, t); +} +void SetFastMethod(Isolate* isolate, + Local