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| author | Serhiy Storchaka <storchaka@gmail.com> | 2013-02-16 14:54:33 (GMT) |
|---|---|---|
| committer | Serhiy Storchaka <storchaka@gmail.com> | 2013-02-16 14:54:33 (GMT) |
| commit | a0eb80999538febe046164bae541d3f07b899dfb (patch) | |
| tree | 05b2bdfb56f6ef914c35602f5b4813f645f7abb7 /Lib/sre_parse.py | |
| parent | 293ab9728aafc86e33b268049ce598dccf56ff51 (diff) | |
| parent | 70ca0210e8958d2665541ddd38fce2965075674e (diff) | |
| download | cpython-a0eb80999538febe046164bae541d3f07b899dfb.zip cpython-a0eb80999538febe046164bae541d3f07b899dfb.tar.gz cpython-a0eb80999538febe046164bae541d3f07b899dfb.tar.bz2 | |
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).
Diffstat (limited to 'Lib/sre_parse.py')
| -rw-r--r-- | Lib/sre_parse.py | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Lib/sre_parse.py b/Lib/sre_parse.py index 1298d48..b195fd0 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 = "*+?{" @@ -537,10 +538,14 @@ def _parse(source, state): 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 |