cpp: fixup removal of '##' around macro argument during concatenation

Signed-off-by: Efimov Vasily <[email protected]>
Mandarancio · Oct 30, 2017 · 0f87468 · 0f87468
1 parent 9fdca0b
commit 0f87468
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/ply/cpp.py b/ply/cpp.py
@@ -411,10 +411,11 @@ def macro_prescan(self,macro):
                 elif (i > 0 and macro.value[i-1].value == '##'):
                     macro.patch.append(('c',argnum,i-1))
                     del macro.value[i-1]
+                    i -= 1
                     continue
                 elif ((i+1) < len(macro.value) and macro.value[i+1].value == '##'):
                     macro.patch.append(('c',argnum,i))
-                    i += 1
+                    del macro.value[i + 1]
                     continue
                 # Standard expansion
                 else: