diff --git a/unifree/free.py b/unifree/free.py
index 4dad3b2..2154b8d 100644
--- a/unifree/free.py
+++ b/unifree/free.py
@@ -11,6 +11,7 @@
 
 import unifree
 from unifree import utils, log
+from unifree.log import ExitCode
 
 
 def run_migration(
@@ -32,15 +33,15 @@ def run_migration(
 
     except Exception as e:
         log.error(f"Unable to start: {config} is invalid: {e}", exc_info=e)
-        return 78 # os.EX_CONFIG
+        return ExitCode.EX_CONFIG.value
 
     if not os.path.exists(source):
         log.error(f"Unable to start: source folder does not exist ('{source}')")
-        return 78 # os.EX_CONFIG
+        return ExitCode.EX_CONFIG.value
 
     if not os.path.isdir(source):
         log.error(f"Unable to start: source folder is not a folder ('{source}')")
-        return 78 # os.EX_CONFIG
+        return ExitCode.EX_CONFIG.value
 
     if os.path.exists(destination):
         log.info(f"Using existing destination folder '{destination}'")
@@ -51,7 +52,7 @@ def run_migration(
             os.makedirs(destination)
         except Exception as e:
             log.error(f"Unable to create destination folder '{destination}': {e}", exc_info=e)
-            return 74 # os.EX_IOERR
+            return ExitCode.EX_IOERR.value
 
     from unifree.project_migration_strategies import CreateMigrations, ExecuteMigrations
 
@@ -67,7 +68,7 @@ def run_migration(
         return os.EX_OK
     except Exception as e:
         log.error(f"Unable to migrate: {e}", exc_info=e)
-        return 70 # os.EX_SOFTWARE
+        return ExitCode.EX_SOFTWARE.value
 
 
 def migrate():
@@ -113,7 +114,7 @@ def migrate():
         args, _ = args_parser.parse_known_args()
     except SystemExit:
         args_parser.print_usage()
-        sys.exit(78) # os.EX_CONFIG
+        sys.exit(ExitCode.EX_CONFIG.value)
 
     args = vars(args)
 
diff --git a/unifree/log.py b/unifree/log.py
index 3157f98..81c6436 100644
--- a/unifree/log.py
+++ b/unifree/log.py
@@ -8,6 +8,12 @@
 import traceback
 
 import unifree
+from enum import Enum
+
+class ExitCode(Enum):
+    EX_SOFTWARE = 70
+    EX_IOERR = 74
+    EX_CONFIG = 78
 
 py_logger = logging.getLogger("lion")
 
diff --git a/unifree/source_code_parsers.py b/unifree/source_code_parsers.py
index 494136a..01067aa 100644
--- a/unifree/source_code_parsers.py
+++ b/unifree/source_code_parsers.py
@@ -14,7 +14,7 @@
 
 class CSharpCodeParser:
     _parser: tree_sitter.Parser
-    _config: Dict
+    _config: Dict[str, any]
 
     def __init__(self, config: Dict) -> None:
         self._config = config
@@ -68,13 +68,26 @@ def _c_sharp_library_path(cls) -> str:
         c_sharp_library_folder_path = os.path.join(unifree.project_root, 'vendor', 'build', 'libraries')
         return os.path.join(c_sharp_library_folder_path, 'c-sharp.so')
 
-    def _replace_macros_with_comments(self, source_str):
-        result = ''
-        for line in source_str.split("\n"):
-            stripped_line = line.rstrip().lstrip()
-            if stripped_line.startswith("#"):
-                result += "// " + line + "\n"
+    @classmethod
+    def _find_vendor_folder(cls, current_folder_path: str, remaining_depth: int) -> str:
+        if remaining_depth <= 0:
+            log.error("Unable to locate 'vendor' folder that is necessary for reading the code. Please make sure your project is setup correctly")
+            raise RuntimeError(f"Can't locate 'vendor' folder")
+
+        if os.path.isdir(current_folder_path):
+            for file_name in os.listdir(current_folder_path):
+                if os.path.isdir(os.path.join(current_folder_path, file_name)) and file_name == 'vendor':
+                    return current_folder_path
+
+        return cls._find_vendor_folder(os.path.dirname(current_folder_path), remaining_depth - 1)
+
+    def _replace_macros_with_comments(self, source_str : str) -> str:
+        result = []
+        lines = [line.strip() for line in source_str.split("\n") if line.strip() != '']
+        for line in lines:
+            if line.startswith("#"):
+                result.append("// " + line)
             else:
-                result += line + "\n"
+                result.append(line)
 
-        return result
+        return "\n".join(result)