1 files changed, 30 insertions, 0 deletions
diff --git a/util/cmake/pro2cmake.py b/util/cmake/pro2cmake.py
index 3f9b4ccb53..ea68b57a19 100755
--- a/util/cmake/pro2cmake.py
+++ b/util/cmake/pro2cmake.py
@@ -683,6 +683,33 @@ class QmakeParser:
     def __init__(self, *, debug: bool = False) -> None:
         self._Grammar = self._generate_grammar(debug)
 
+    @staticmethod
+    def set_up_py_parsing_nicer_debug_output():
+        indent = -1
+
+        def increase_indent(fn):
+            def wrapper_function(*args):
+                nonlocal indent
+                indent += 1
+                print("> " * indent, end="")
+                return fn(*args)
+
+            return wrapper_function
+
+        def decrease_indent(fn):
+            def wrapper_function(*args):
+                nonlocal indent
+                print("> " * indent, end="")
+                indent -= 1
+                return fn(*args)
+
+            return wrapper_function
+
+        pp._defaultStartDebugAction = increase_indent(pp._defaultStartDebugAction)
+        pp._defaultSuccessDebugAction = decrease_indent(pp._defaultSuccessDebugAction)
+        pp._defaultExceptionDebugAction = decrease_indent(pp._defaultExceptionDebugAction)
+
+
     def _generate_grammar(self, debug: bool):
         # Define grammar:
         pp.ParserElement.setDefaultWhitespaceChars(' \t')
@@ -829,6 +856,9 @@ class QmakeParser:
         return result
 
 
+QmakeParser.set_up_py_parsing_nicer_debug_output()
+
+
 def parseProFile(file: str, *, debug=False):
     parser = QmakeParser(debug=debug)
     return parser.parseFile(file)