Merge pull request #200 from nikaera/fix/exclude-comments-for-analyze

fix: exclude comments from analysis during the execution of 'analyze'

slang/lib/src/runner/analyze.dart

@@ -347,9 +347,16 @@ void _getUnusedTranslationsInSourceCodeRecursive({
 /// and joins them into a single (huge) string without any spaces.
 String loadSourceCode(List<File> files) {
   final buffer = StringBuffer();
-  final regex = RegExp(r'\s');
+  final spacesRegex = RegExp(r'\s');
+  final singleLineCommentsRegex = RegExp(r'//.*');
+  final multiLineCommentsRegex = RegExp(r'/\*.*?\*/', dotAll: true);
+
   for (final file in files) {
-    buffer.write(file.readAsStringSync().replaceAll(regex, ''));
+    buffer.write(file
+        .readAsStringSync()
+        .replaceAll(singleLineCommentsRegex, '')
+        .replaceAll(multiLineCommentsRegex, '')
+        .replaceAll(spacesRegex, ''));
   }
 
   return buffer.toString();

slang/test/unit/runner/analyze_test.dart

@@ -28,5 +28,29 @@ void main() {
 
       expect(result, 'ABCDEFGH;');
     });
+
+    test('should ignore inline comments', () {
+      final files = [
+        FakeFile('A // B\nC'),
+        FakeFile('D /* E */ F'),
+        FakeFile('G'),
+      ];
+
+      final result = loadSourceCode(files);
+
+      expect(result, 'ACDFG');
+    });
+
+    test('should ignore block comments', () {
+      final files = [
+        FakeFile('A /* B\nC */ D'),
+        FakeFile('E // F'),
+        FakeFile('G //'),
+      ];
+
+      final result = loadSourceCode(files);
+
+      expect(result, 'ADEG');
+    });
   });
 }