New submission from Cal Leeming <cal.leem...@simplicitymedialtd.co.uk>:
I believe I might have found a bug in the Python re libraries. Here is a complete debug of what is happening (my apologies for the nature of the actual text). I have ran this regex through RegexBuddy (and a few other tools), and all of them do the correct action (which is to not do any replacement), apart from Python. I haven't yet tried this in another language. ------------ ORIGINAL TEXT ------------ >>313229176 me and a buddy and his girlfriend were watching tv once and this blabbering idiot starts talking about this scientific study she heard about where they built a fake city and only one guy didn't know that it was a fake. we all paused for a second and i said "the truman show?" and she says "yeah! that was the name of it!" me my buddy and his girlfriend all catch eyes and are baffled at how stupid she was ---------------------------------------- ------------ TEXT AFTER REGEX SUB ------------ me and a buddy and his girlfriend were http://watching.tv once and this blabbering idiot starts talking about this scientific study she heard about where they built a fake city and only one guy didn't know that it was a fake.we all paused for a second and i said "the truman show?" and she says "yeah! that was the name of it!" me my buddy and his girlfriend all catch eyes and are baffled at how stupid she was ----------------------------------------------- ----------- REPLACED TEXT ----------- watching tv http://watching.tv ----------------------------------------------- ---- REGEX ---- _t = re.compile(r"(^| )((?:[\w\-]{2,}?\.|)(?:[\w\-]{2,}?)(?:\.com|\.net|\.org|\.co\.uk|\.tv|\.ly))", flags = re.IGNORECASE | re.MULTILINE | re.DEBUG) ---- COMMAND ---- _t.sub("\\1http://\\2";, original_message_here) ---- REGEX DEBUG ---- subpattern 1 branch at at_beginning or literal 32 subpattern 2 subpattern None branch min_repeat 2 65535 in category category_word literal 45 literal 46 or subpattern None min_repeat 2 65535 in category category_word literal 45 subpattern None literal 46 branch literal 99 literal 111 literal 109 or literal 110 literal 101 literal 116 or literal 111 literal 114 literal 103 or literal 99 literal 111 literal 46 literal 117 literal 107 or literal 116 literal 118 or literal 108 literal 121 ---------- components: Regular Expressions messages: 138234 nosy: Cal.Leeming priority: normal severity: normal status: open title: regex matches incorrectly on literal dot (99.9% confirmed) versions: Python 2.7 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue12325> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
