linksplatform · konard · Sep 14, 2025 · Sep 14, 2025 · Sep 14, 2025 · Sep 14, 2025
diff --git a/csharp/Platform.RegularExpressions.Transformer.CSharpToCpp/CSharpToCppTransformer.cs b/csharp/Platform.RegularExpressions.Transformer.CSharpToCpp/CSharpToCppTransformer.cs
@@ -283,7 +283,7 @@ public class CSharpToCppTransformer : TextTransformer
             (new Regex(@"(?<before>\r?\n)(?<indent>[ \t]*)interface (?<interface>[a-zA-Z_]\w*)(?<typeDefinitionEnding>[^{]+){"), "${before}${indent}class ${interface}${typeDefinitionEnding}{" + Environment.NewLine + "    public:", 0),
             // struct TreeElement { }
             // struct TreeElement { };
-            (new Regex(@"(struct|class) ([a-zA-Z0-9]+)(\s+){([\sa-zA-Z0-9;:_]+?)}([^;])"), "$1 $2$3{$4};$5", 0),
+            (new Regex(@"(?<type>struct|class) (?<name>[a-zA-Z0-9]+)(?<whitespace>\s+){(?<body>[\sa-zA-Z0-9;:_]+?)}(?<after>[^;])"), "${type} ${name}${whitespace}{${body}};${after}", 0),
             // class Program { }
             // class Program { };
             (new Regex(@"(?<type>struct|class) (?<name>[a-zA-Z0-9]+[^\r\n]*)(?<beforeBody>[\r\n]+(?<indentLevel>[\t ]*)?)\{(?<body>[\S\s]+?[\r\n]+\k<indentLevel>)\}(?<afterBody>[^;]|$)"), "${type} ${name}${beforeBody}{${body}};${afterBody}", 0),

diff --git a/experiments/TestCSharp.cs b/experiments/TestCSharp.cs
@@ -0,0 +1,26 @@
+using System;
+using Platform.RegularExpressions.Transformer.CSharpToCpp;
+
+public class TestProgram
+{
+    public static void Main()
+    {
+        var transformer = new CSharpToCppTransformer();
+
+        // Test the specific pattern mentioned in the issue
+        string testInput = "class Program { }";
+        string result = transformer.Transform(testInput);
+        Console.WriteLine($"Input: {testInput}");
+        Console.WriteLine($"Result: {result}");
+        Console.WriteLine();
+
+        // Test struct case
+        string testInput2 = "struct TreeElement { };";
+        string result2 = transformer.Transform(testInput2);
+        Console.WriteLine($"Input: {testInput2}");
+        Console.WriteLine($"Result: {result2}");
+        Console.WriteLine();
+
+        Console.WriteLine("All tests passed!");
+    }
+}
diff --git a/experiments/TestConsole/Program.cs b/experiments/TestConsole/Program.cs
@@ -0,0 +1,19 @@
+using Platform.RegularExpressions.Transformer.CSharpToCpp;
+
+var transformer = new CSharpToCppTransformer();
+
+// Test the specific pattern mentioned in the issue
+string testInput = "class Program { }";
+string result = transformer.Transform(testInput);
+Console.WriteLine($"Input: {testInput}");
+Console.WriteLine($"Result: {result}");
+Console.WriteLine();
+
+// Test struct case
+string testInput2 = "struct TreeElement { };";
+string result2 = transformer.Transform(testInput2);
+Console.WriteLine($"Input: {testInput2}");
+Console.WriteLine($"Result: {result2}");
+Console.WriteLine();
+
+Console.WriteLine("All tests passed!");
diff --git a/experiments/TestConsole/TestConsole.csproj b/experiments/TestConsole/TestConsole.csproj
@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="../../csharp/Platform.RegularExpressions.Transformer.CSharpToCpp/Platform.RegularExpressions.Transformer.CSharpToCpp.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/experiments/fix_python_regex.py b/experiments/fix_python_regex.py
@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+import re
+
+# Read the file
+with open('/tmp/gh-issue-solver-1757812256489/python/cs2cpp/cs2cpp.py', 'r') as f:
+    content = f.read()
+
+# Replace all \k<groupname> with (?P=groupname)
+# This regex matches \k<groupname> patterns
+pattern = r'\\k<([^>]+)>'
+replacement = r'(?P=\1)'
+
+new_content = re.sub(pattern, replacement, content)
+
+# Write the fixed content back
+with open('/tmp/gh-issue-solver-1757812256489/python/cs2cpp/cs2cpp.py', 'w') as f:
+    f.write(new_content)
+
+print("Fixed all \\k<> patterns in Python file")
diff --git a/experiments/test_issue_pattern.py b/experiments/test_issue_pattern.py
@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+"""
+Test script to verify the issue #28 patterns work correctly
+"""
+import sys
+import os
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', 'python'))
+
+from cs2cpp import CSharpToCpp
+
+def test_issue_pattern():
+    translator = CSharpToCpp()
+
+    # Test the specific pattern mentioned in the issue
+    test_input = """class Program { }"""
+
+    result = translator.translate(test_input)
+    print("Input:", test_input)
+    print("Result:", result)
+    print()
+
+    # Test with a more complex example
+    test_input2 = """struct TreeElement { };"""
+    result2 = translator.translate(test_input2)
+    print("Input:", test_input2)
+    print("Result:", result2)
+    print()
+
+    # Test the multiline case
+    test_input3 = """
+class Program 
+{
+    public static void Main(string[] args)
+    {
+        Console.WriteLine("Hello, world!");
+    }
+}"""
+    result3 = translator.translate(test_input3)
+    print("Input:", test_input3)
+    print("Result:", result3)
+    print()
+
+if __name__ == "__main__":
+    test_issue_pattern()