fix: enhance handling of '<' characters in pyautogui commands

- Refactor _fix_pyautogui_less_than_bug to improve handling of press('<') and typewrite calls.
- Introduce Unicode escape decoding for typewrite content to ensure proper '<' character processing.
- Maintain existing logic while enhancing functionality for better compatibility.

desktop_env/desktop_env.py

@@ -38,47 +38,34 @@ def _fix_pyautogui_less_than_bug(command: str) -> str:
     Returns:
         str: The fixed command with '<' characters handled properly
     """
-    # Handle typewrite with '<' characters
-    def replace_typewrite_less_than(match):
-        content = match.group(1)
-        # Split the content by '<' and rebuild with hotkey calls
-        parts = content.split('<')
-        if len(parts) == 1:
-            # No '<' found, return original
-            return match.group(0)
-        
-        # Rebuild the command
-        result_parts = []
-        for i, part in enumerate(parts):
-            if i == 0:
-                # First part, just add typewrite if not empty
-                if part:
-                    result_parts.append(f"pyautogui.typewrite({repr(part)})")
-            else:
-                # Add hotkey for '<' and then typewrite for the rest if not empty
-                result_parts.append('pyautogui.hotkey("shift", ",")')
-                if part:
-                    result_parts.append(f"pyautogui.typewrite({repr(part)})")
-        
-        return '; '.join(result_parts)
-    
+    # Pattern to match press('<') or press('\u003c') calls  
+    press_pattern = r'pyautogui\.press\(["\'](?:<|\\u003c)["\']\)'
+
     # Handle press('<') calls
     def replace_press_less_than(match):
         return 'pyautogui.hotkey("shift", ",")'
     
-    # Pattern to match typewrite calls with quoted strings
-    typewrite_pattern = r'pyautogui\.typewrite\((["\'])(.*?)\1\)'
-    # Pattern to match press('<') calls  
-    press_pattern = r'pyautogui\.press\(["\']<["\']\)'
-    
     # First handle press('<') calls
     command = re.sub(press_pattern, replace_press_less_than, command)
+
+    # Pattern to match typewrite calls with quoted strings
+    typewrite_pattern = r'pyautogui\.typewrite\((["\'])(.*?)\1\)'
     
     # Then handle typewrite calls
     def process_typewrite_match(match):
         quote_char = match.group(1)
         content = match.group(2)
         
+        # Preprocess: Try to decode Unicode escapes like \u003c to actual '<'
+        # This handles cases where '<' is represented as escaped Unicode
+        try:
+            # Attempt to decode unicode escapes
+            decoded_content = content.encode('utf-8').decode('unicode_escape')
+            content = decoded_content
+        except UnicodeDecodeError:
+            # If decoding fails, proceed with original content to avoid breaking existing logic
+            pass  # English comment: Graceful degradation - fall back to original content if decoding fails
+        
         # Check if content contains '<'
         if '<' not in content:
             return match.group(0)