diff --git a/tools/brick_generator/README.md b/tools/brick_generator/README.md
index 75b8593..ffcfb78 100644
--- a/tools/brick_generator/README.md
+++ b/tools/brick_generator/README.md
@@ -128,6 +128,8 @@ name:
   description: <description>
   default: <default>
   prompt: <prompt>
+  formats:
+      - ...
 ```
 
 - name: the variable name (will be in `brick.yaml`)
@@ -135,6 +137,8 @@ name:
   - type: variable type, here string, (will be in `brick.yaml`)
   - default: default value (will be in `brick.yaml`)
   - prompt: the displayed prompt at the brick generation (will be in `brick.yaml`)
+  - formats: optional list of formats that are detected.
+    - if no formats provided, all possible syntaxes are detected.
 
 #### Boolean variable
 
diff --git a/tools/brick_generator/lib/core/file_system.dart b/tools/brick_generator/lib/core/file_system.dart
index 3e9c45d..8781fe1 100644
--- a/tools/brick_generator/lib/core/file_system.dart
+++ b/tools/brick_generator/lib/core/file_system.dart
@@ -21,7 +21,6 @@ import 'package:brick_generator/core/shell.dart';
 import 'package:brick_generator/models/brick_config.dart';
 import 'package:brick_generator/models/brick_variable_string.dart';
 import 'package:brick_generator/models/ignore_list.dart';
-import 'package:brick_generator/models/variable_string_syntax.dart';
 import 'package:path/path.dart';
 
 abstract class FileSystem {
@@ -238,24 +237,23 @@ abstract class FileSystem {
       try {
         contents = file.readAsStringSync();
       } catch (e) {
-        Logger.error(e);
+        // Ignore decode error
         return;
       }
 
       config.variables.whereType<BrickVariableString>().forEach((variable) {
         // Replace all string variables
-        for (final syntax in VariableStringSyntax.values) {
-          final toReplace = variable.syntax?[syntax.mapKey];
-          if (toReplace != null) {
-            if (contents?.contains(toReplace) ?? false) {
-              contents = contents!.replaceAll(
-                toReplace,
-                '{{#${syntax.id}}}{{${variable.name}}}{{/${syntax.id}}}',
-              );
-              Logger.debug(
-                'Variable `${variable.name}` replaced in ${file.path}',
-              );
-            }
+        for (final syntax in variable.formats) {
+          final toReplace = variable.syntaxes?[syntax.mapKey];
+          if (toReplace != null && (contents?.contains(toReplace) ?? false)) {
+            contents = contents!.replaceAll(
+              toReplace,
+              '{{#${syntax.id}}}{{${variable.name}}}{{/${syntax.id}}}',
+            );
+            Logger.debug(
+              'Variable `${variable.name}` replaced '
+              'in ${file.path} by $toReplace',
+            );
           }
         }
       });
@@ -282,7 +280,7 @@ abstract class FileSystem {
   }
 
   /// Removes empty folder dynamically:
-  /// 
+  ///
   /// For example, for this structure:
   /// ```
   /// ./brick/__brick__/folder/empty1/
@@ -291,7 +289,7 @@ abstract class FileSystem {
   /// ```
   /// it will delete `empty1` and `empty2`...then it will delete `folder`,
   /// because by deleting his subfolders he's now empty too.
-  /// 
+  ///
   static void removeEmptyFolders(String targetPath) {
     if (!FileSystemEntity.isDirectorySync(targetPath)) {
       throw ArgumentError('Target must be a directory', 'targetPath');
@@ -350,8 +348,8 @@ abstract class FileSystem {
         .forEach((file) {
       config.variables.whereType<BrickVariableString>().forEach((variable) {
         // Replace all string variables
-        for (final syntax in VariableStringSyntax.values) {
-          final toReplace = variable.syntax?[syntax.mapKey];
+        for (final syntax in variable.formats) {
+          final toReplace = variable.syntaxes?[syntax.mapKey];
           if (toReplace != null && file.path.contains(toReplace)) {
             final newPath = file.path.replaceAll(
               toReplace,
@@ -361,7 +359,8 @@ abstract class FileSystem {
             File(newPath).createSync(recursive: true);
             file.renameSync(newPath);
             Logger.debug(
-              '${file.path} renamed with variable `${variable.name}`',
+              '${file.path} renamed with variable '
+              '`${variable.name}` using $syntax',
             );
           }
         }
diff --git a/tools/brick_generator/lib/models/brick_variable_boolean.dart b/tools/brick_generator/lib/models/brick_variable_boolean.dart
index b286de9..f545192 100644
--- a/tools/brick_generator/lib/models/brick_variable_boolean.dart
+++ b/tools/brick_generator/lib/models/brick_variable_boolean.dart
@@ -37,8 +37,10 @@ class BrickVariableBoolean extends BrickVariable<bool> {
       throw ArgumentError.notNull('source');
     }
 
+    final type = VariableType.fromString(source[_typeKey] as String?);
+
     return BrickVariableBoolean(
-      type: VariableType.fromString(source[_typeKey] as String?),
+      type: type,
       name: key,
       description: source[_descriptionKey] as String? ?? '',
       defaultValue: source[_defaultKey] as bool? ?? false,
diff --git a/tools/brick_generator/lib/models/brick_variable_string.dart b/tools/brick_generator/lib/models/brick_variable_string.dart
index 4661b1b..abfbefc 100644
--- a/tools/brick_generator/lib/models/brick_variable_string.dart
+++ b/tools/brick_generator/lib/models/brick_variable_string.dart
@@ -16,10 +16,12 @@
 
 import 'package:brick_generator/core/string_extension.dart';
 import 'package:brick_generator/models/brick_variable.dart';
+import 'package:brick_generator/models/variable_string_syntax.dart';
 import 'package:brick_generator/models/variable_type.dart';
 import 'package:yaml/yaml.dart';
 
 const _compilableKey = 'compilable';
+const _formatsKey = 'formats';
 const _typeKey = 'type';
 const _descriptionKey = 'description';
 const _defaultKey = 'default';
@@ -28,7 +30,8 @@ const _promptKey = 'prompt';
 class BrickVariableString extends BrickVariable<String> {
   BrickVariableString({
     required this.compilable,
-    required this.syntax,
+    required this.formats,
+    required this.syntaxes,
     required super.type,
     required super.name,
     required super.description,
@@ -41,19 +44,30 @@ class BrickVariableString extends BrickVariable<String> {
       throw ArgumentError.notNull('source');
     }
 
+    final type = VariableType.fromString(source[_typeKey] as String?);
+
+    final formats = (source[_formatsKey] as YamlList?)
+            ?.map((element) => element as String)
+            .map(VariableStringSyntax.fromString) ??
+        VariableStringSyntax.values;
+
+    final syntaxes = (source[_compilableKey] as String?)?.syntaxes ?? {};
+
     return BrickVariableString(
       compilable: source[_compilableKey] as String? ?? '',
-      type: VariableType.fromString(source[_typeKey] as String?),
+      type: type,
+      syntaxes: syntaxes,
       name: key,
       description: source[_descriptionKey] as String? ?? '',
       defaultValue: source[_defaultKey] as String? ?? '',
       prompt: source[_promptKey] as String? ?? '',
-      syntax: (source[_compilableKey] as String? ?? '').syntaxes,
+      formats: formats.toList(),
     );
   }
 
   String compilable;
-  Map<String, String>? syntax;
+  Map<String, String>? syntaxes;
+  List<VariableStringSyntax> formats;
 
   @override
   String toString() => 'BrickVariableString(name: $name, '
diff --git a/tools/brick_generator/lib/models/variable_string_syntax.dart b/tools/brick_generator/lib/models/variable_string_syntax.dart
index 8c9bd9b..55829c8 100644
--- a/tools/brick_generator/lib/models/variable_string_syntax.dart
+++ b/tools/brick_generator/lib/models/variable_string_syntax.dart
@@ -15,6 +15,7 @@
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
 
 enum VariableStringSyntax {
+  none('ERROR', 'ERROR'),
   snakeCase('snake_case', 'snakeCase'),
   camelCase('camel_case', 'camelCase'),
   constantCase('constant_case', 'constantCase'),
@@ -31,6 +32,15 @@ enum VariableStringSyntax {
 
   const VariableStringSyntax(this.mapKey, this.id);
 
+  factory VariableStringSyntax.fromString(String? source) {
+    for (final element in values) {
+      if (element.mapKey == source || element.id == source) {
+        return element;
+      }
+    }
+    return VariableStringSyntax.none;
+  }
+
   final String mapKey;
   final String id;
 }
diff --git a/tools/brick_generator/lib/models/variable_type.dart b/tools/brick_generator/lib/models/variable_type.dart
index 750f1f7..da0af3b 100644
--- a/tools/brick_generator/lib/models/variable_type.dart
+++ b/tools/brick_generator/lib/models/variable_type.dart
@@ -19,15 +19,13 @@ enum VariableType {
   string,
   boolean;
 
-  static VariableType fromString(String? type) {
-    switch (type) {
-      case 'string':
-        return string;
-      case 'boolean':
-        return boolean;
-      default:
-        return none;
+  factory VariableType.fromString(String? source) {
+    for (final element in values) {
+      if (element.name == source || element.name == source) {
+        return element;
+      }
     }
+    return VariableType.none;
   }
 
   @override