mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-07-12 13:55:34 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 14

detect attempts to repeat anchors (fixes bug #130748)

Browse source
This commit is contained in:
Fredrik Lundh 2001-02-18 21:04:48 +00:00
parent 8ac3627b91
commit c0c7ee3a65
2 changed files with 5 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

3
Lib/sre_parse.py
View file

@ -446,6 +446,7 @@ def _parse(source, state):
min, max = 0, 1
elif this == "*":
min, max = 0, MAXREPEAT
elif this == "+":
min, max = 1, MAXREPEAT
elif this == "{":
@ -475,6 +476,8 @@ def _parse(source, state):
if subpattern:
item = subpattern[-1:]
else:
item = None
if not item or (len(item) == 1 and item[0][0] == AT):
raise error, "nothing to repeat"
if item[0][0] in (MIN_REPEAT, MAX_REPEAT):
raise error, "multiple repeat"