Argument Clinic bugfix: Don't let the C preprocessor "Monitor" see lines

larryhastings · larryhastings · commit 09307cf86aa6 · 2014-07-27T16:22:20.000+02:00
that we are scanning for the output marker.  If we don't find it, we will
scan them again, so it sees them twice, and it can get confused (like
thinking we're still in a comment).
diff --git a/Tools/clinic/clinic.py b/Tools/clinic/clinic.py
@@ -1252,10 +1252,11 @@ def is_start_line(self, line):
         match = self.start_re.match(line.lstrip())
         return match.group(1) if match else None
 
-    def _line(self):
+    def _line(self, lookahead=False):
         self.line_number += 1
         line = self.input.pop()
-        self.language.parse_line(line)
+        if not lookahead:
+            self.language.parse_line(line)
         return line
 
     def parse_verbatim_block(self):
@@ -1311,7 +1312,7 @@ def is_stop_line(line):
         output_add, output_output = text_accumulator()
         arguments = None
         while self.input:
-            line = self._line()
+            line = self._line(lookahead=True)
             match = checksum_re.match(line.lstrip())
             arguments = match.group(1) if match else None
             if arguments:
