Issue #13169: The maximal repetition number in a regular expression has been
increased from 65534 to 2147483647 (on 32-bit platform) or 4294967294 (on
64-bit).
diff --git a/Lib/sre_parse.py b/Lib/sre_parse.py
index 19dd4fc..045a5eb 100644
--- a/Lib/sre_parse.py
+++ b/Lib/sre_parse.py
@@ -15,6 +15,7 @@
import sys
from sre_constants import *
+from _sre import MAXREPEAT
SPECIAL_CHARS = ".\\[{()*+?^$|"
REPEAT_CHARS = "*+?{"
@@ -505,10 +506,14 @@
continue
if lo:
min = int(lo)
+ if min >= MAXREPEAT:
+ raise OverflowError("the repetition number is too large")
if hi:
max = int(hi)
- if max < min:
- raise error("bad repeat interval")
+ if max >= MAXREPEAT:
+ raise OverflowError("the repetition number is too large")
+ if max < min:
+ raise error("bad repeat interval")
else:
raise error("not supported")
# figure out which item to repeat