diff --git a/example/pubspec.lock b/example/pubspec.lock
index e943eb8..07a2e6c 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -66,18 +66,18 @@ packages:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: "9528f2f296073ff54cb9fee677df673ace1218163c3bc7628093e7eed5203d41"
+      sha256: f7142bb1154231d7ea5f96bc7bde4bda2a0945d2806bb11670e30b850d56bdec
       url: "https://pub.dev"
     source: hosted
-    version: "0.5.0"
+    version: "0.11.1"
   meta:
     dependency: transitive
     description:
       name: meta
-      sha256: a6e590c838b18133bb482a2745ad77c5bb7715fb0451209e1a7567d416678b8e
+      sha256: bdb68674043280c3428e9ec998512fb681678676b3c54e773629ffe74419f8c7
       url: "https://pub.dev"
     source: hosted
-    version: "1.10.0"
+    version: "1.15.0"
   path:
     dependency: transitive
     description:
@@ -92,7 +92,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.4.0"
+    version: "0.6.0"
   re_highlight:
     dependency: "direct main"
     description:
@@ -122,14 +122,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.4"
-  web:
-    dependency: transitive
-    description:
-      name: web
-      sha256: afe077240a270dcfd2aafe77602b4113645af95d0ad31128cc02bce5ac5d5152
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.3.0"
 sdks:
-  dart: ">=3.2.0-194.0.dev <4.0.0"
+  dart: ">=3.3.0-0 <4.0.0"
   flutter: ">=1.17.0"
diff --git a/lib/src/code_autocomplete.dart b/lib/src/code_autocomplete.dart
index 4e924c6..ce963af 100644
--- a/lib/src/code_autocomplete.dart
+++ b/lib/src/code_autocomplete.dart
@@ -6,8 +6,17 @@ part of re_editor;
 abstract class CodePrompt {
 
   const CodePrompt({
-    required this.word
+    required this.word,
+    this.caseSensitive = true,
   });
+  
+  /// Whether the prompt is case sensitive.
+  /// 
+  /// e.g. 
+  ///    - when false, user input is 'str', the prompt word 'String' will be displayed to user.
+  ///    - when true, user input is 'str', the prompt word 'String' will not be displayed to user.
+  /// default to true
+  final bool caseSensitive;
 
   /// Content associated with user input.
   ///
@@ -21,7 +30,12 @@ abstract class CodePrompt {
   CodeAutocompleteResult get autocomplete;
 
   /// Check whether the input meets this prompt condition.
-  bool match(String input);
+  bool match(String input) {
+    return word != input &&
+        (caseSensitive
+            ? word.startsWith(input)
+            : word.toLowerCase().startsWith(input.toLowerCase()));
+  }
 
 }
 
@@ -29,17 +43,13 @@ abstract class CodePrompt {
 class CodeKeywordPrompt extends CodePrompt {
 
   const CodeKeywordPrompt({
-    required super.word
+    required super.word,
+    super.caseSensitive = true,
   });
 
   @override
   CodeAutocompleteResult get autocomplete => CodeAutocompleteResult.fromWord(word);
 
-  @override
-  bool match(String input) {
-    return word != input && word.startsWith(input);
-  }
-
   @override
   bool operator ==(Object other) {
     if (identical(this, other)) {
@@ -62,6 +72,7 @@ class CodeFieldPrompt extends CodePrompt {
   const CodeFieldPrompt({
     required super.word,
     required this.type,
+    super.caseSensitive = true,
     this.customAutocomplete,
   });
 
@@ -74,11 +85,6 @@ class CodeFieldPrompt extends CodePrompt {
   @override
   CodeAutocompleteResult get autocomplete => customAutocomplete ?? CodeAutocompleteResult.fromWord(word);
 
-  @override
-  bool match(String input) {
-    return word != input && word.startsWith(input);
-  }
-
   @override
   bool operator ==(Object other) {
     if (identical(this, other)) {
@@ -98,6 +104,7 @@ class CodeFunctionPrompt extends CodePrompt {
 
   const CodeFunctionPrompt({
     required super.word,
+    super.caseSensitive = true,
     required this.type,
     this.parameters = const {},
     this.optionalParameters = const {},
@@ -119,11 +126,6 @@ class CodeFunctionPrompt extends CodePrompt {
   @override
   CodeAutocompleteResult get autocomplete => customAutocomplete ?? CodeAutocompleteResult.fromWord('$word(${parameters.keys.join(', ')})');
 
-  @override
-  bool match(String input) {
-    return word != input && word.startsWith(input);
-  }
-
   @override
   bool operator ==(Object other) {
     if (identical(this, other)) {
@@ -201,7 +203,8 @@ class CodeAutocompleteEditingValue {
   }
 
   CodeAutocompleteResult get autocomplete {
-    final CodeAutocompleteResult result = prompts[index].autocomplete;
+    final selectedPrompt = prompts[index];
+    final CodeAutocompleteResult result = selectedPrompt.autocomplete;
     if (result.word.isEmpty) {
       return result;
     }