Exercise/reverse string

config.json

@@ -96,6 +96,18 @@
         "practices": ["function-arguments"],
         "prerequisites": ["basics", "strings"],
         "difficulty": 1
+      },
+      {
+        "slug": "reverse-string",
+        "name": "Reverse String",
+        "uuid": "ba8c915a-85c0-4798-b21f-4adf4268b606",
+        "practices": [
+          "loops",
+          "strings"
+        ],
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": []
       }
     ]
   },

exercises/practice/reverse-string/.docs/instructions.md

@@ -0,0 +1,9 @@
+# Instructions
+
+Your task is to reverse a given string.
+
+Some examples:
+
+- Turn `"stressed"` into `"desserts"`.
+- Turn `"strops"` into `"sports"`.
+- Turn `"racecar"` into `"racecar"`.

exercises/practice/reverse-string/.meta/Example.bat

@@ -0,0 +1,20 @@
+@echo off
+setlocal enabledelayedexpansion
+
+set "str=%~1"
+set "rev="
+
+if not defined str (
+    echo.
+    exit /b
+)
+
+:loop
+if defined str (
+    set "char=!str:~0,1!"
+    set "rev=!char!!rev!"
+    set "str=!str:~1!"
+    goto loop
+)
+echo %rev%
+exit /b

exercises/practice/reverse-string/.meta/config.json

@@ -0,0 +1,16 @@
+{
+  "authors": ["GroophyLifefor"],
+  "files": {
+    "solution": [
+      "ReverseString.bat"
+    ],
+    "test": [
+      "ReverseStringTest.bat"
+    ],
+    "example": [
+      ".meta/Example.bat"
+    ]
+  },
+  "blurb": "Reverse a given string.",
+  "source": "Introductory challenge to reverse an input string"
+}

exercises/practice/reverse-string/.meta/tests.toml

@@ -0,0 +1,13 @@
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
+
+[af9ffe10-dc13-42d8-a742-e7bdafac449d]
+description = "Say Hi!"

exercises/practice/reverse-string/ReverseString.bat

@@ -0,0 +1,10 @@
+@echo off
+setlocal enabledelayedexpansion
+
+set "str=%~1"
+set "rev="
+
+REM Your code goes here
+
+
+echo %rev%

exercises/practice/reverse-string/ReverseStringTest.bat

@@ -0,0 +1,111 @@
+@echo off
+REM ---------------------------------------------------
+REM Reverse String Unit Testing
+REM 
+REM sUnit Testing Framework version: 0.2
+REM ---------------------------------------------------
+
+:Main
+    REM Initalize result variable
+    set "slug=ReverseString"
+
+    CALL :Initialize
+
+    REM --------------------
+    REM Test Case Start \/\/
+    REM Resource: https://github.com/exercism/problem-specifications/blob/main/exercises/reverse-string/canonical-data.json
+    REM --------------------
+    set "expected="
+    set "if_success=Test passed"
+    set "if_failed=Test failed: an empty string."
+    CALL :Assert ""
+
+    set "expected=tobor"
+    set "if_success=Test passed"
+    set "if_failed=Test failed: a word."
+    CALL :Assert "robot"
+
+    set "expected=nemaR"
+    set "if_success=Test passed"
+    set "if_failed=Test failed: a capitalized word."
+    CALL :Assert "Ramen"
+
+    set "expected=racecar"
+    set "if_success=Test passed"
+    set "if_failed=Test failed: a palindrome."
+    CALL :Assert "racecar"
+
+    set "expected=reward"
+    set "if_success=Test passed"
+    set "if_failed=Test failed: an even-sized word."
+    CALL :Assert "drawer"
+
+    REM --------------------
+    REM Test Case End /\/\/\
+    REM --------------------
+
+    CALL :ResolveStatus
+    exit /b %errorlevel%
+REM End of Main
+
+REM ---------------------------------------------------
+REM Assert [..Parameters(up to 9)]
+REM ---------------------------------------------------
+GOTO :End REM Prevents the code below from being executed
+:Assert
+set "stdout="
+
+REM Run the program and capture the output then delete the file
+CALL %slug%.bat %1 %2 %3 %4 %5 %6 %7 %8 %9 > stdout.bin 2>&1
+set /p stdout=<stdout.bin
+del stdout.bin
+
+REM Check if the result is correct
+if "%stdout%" == "%expected%" (
+    if defined if_success (
+        echo %if_success%
+
+        REM Reset the variable to avoid duplicating the message.
+        set "if_success="
+        set "if_failed="
+    )
+
+    REM If the result is correct, exit with code 0
+    set /a successCount+=1
+    exit /b 0
+) else (
+    if defined if_failed (
+        echo %if_failed%
+
+        REM Reset the variable to avoid duplicating the message.
+        set "if_success="
+        set "if_failed="
+    )
+
+    REM If the result is incorrect, exit with code 1
+    set /a failCount+=1
+    exit /b 1
+)
+GOTO :EOF REM Go back to the line after the call to :Assert
+
+:Initialize
+REM It's for initialize, not about checking empty file
+set "successCount=0"
+set "failCount=0"
+GOTO :EOF REM Go back to the line after the call to :CheckEmptyFile
+
+:ResolveStatus
+set "status="
+if %failCount% gtr 0 (
+    REM status: Fail
+    REM message: The test failed.
+    exit /b 1
+
+) else (
+    REM status: Pass
+    exit /b 0
+
+)
+GOTO :EOF REM Go back to the line after the call to :ExportResultAsJson
+
+:End

exercises/practice/two-fer/.docs/instructions.md

@@ -21,4 +21,4 @@ Here are some examples:
 | Alice  | One for Alice, one for me.  |
 | Bohdan | One for Bohdan, one for me. |
 |        | One for you, one for me.    |
-| Zaphod | One for Zaphod, one for me. |
+| Zaphod | One for Zaphod, one for me. |