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[Octave-bug-tracker] [bug #57064] regexp hangs in infinite loop

From: Markus Mützel
Subject: [Octave-bug-tracker] [bug #57064] regexp hangs in infinite loop
Date: Wed, 16 Oct 2019 14:21:00 -0400 (EDT)
User-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:70.0) Gecko/20100101 Firefox/70.0 
Follow-up Comment #3, bug #57064 (project octave):

This might be related to the changes for bug #35910. Particularly, this
changeset:
http://hg.savannah.gnu.org/hgweb/octave/rev/94d490815aa8

Is 5.1.1 slow if you prepend "(*UTF8)" to the pattern?

load('rawdata.mat');
val = regexp (rawdata, '(*UTF8)<c
r="(\w+)"(?:[^t>]*(>)|(?:[^t>]*t="(\w+)")>)(?:<f.+?(?:</f>|/>))?(?:<v(?:[^>]*)>([^<]*)</v>|<is><t>([^<]*)</t></is>|<v/>([^<]*))',
"tokens");




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