cpython: 4243df51fe43 Lib/test/crashers/infinite_loop_re.py (original) (raw)

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Backed out changeset f23fa1f7b68fSorry, I didn't want to push this change before the review :-( I was pushing a change into the 2.7 branch.

Victor Stinner victor.stinner@gmail.com
date Fri, 10 Feb 2017 14:19:36 +0100
parents c0a071df4621
children

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This was taken from http://python.org/sf/1541697[](#l2)

It's not technically a crasher. It may not even truly be infinite,

however, I haven't waited a long time to see the result. It takes

100% of CPU while running this and should be fixed.

import re starttag = re.compile(r'<[a-zA-Z][-_.:a-zA-Z0-9]*\s*(' r'\s*([a-zA-Z_][-:.a-zA-Z_0-9]*)(\s*=\s*' r'('[^']*'|"[^"]*"|[-a-zA-Z0-9./,:;+*%?!&$()_#=@]' r'[][-a-zA-Z0-9./,:;+*%?!&$()_#='"@]*(?=[\s>/<])))?' r')*\s*/?\s*(?=[<>])') if name == 'main': foo = '<table cellspacing="0" cellpadding="0" style="border-collapse' starttag.match(foo)