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[bug #16179] 'egrep -i ' + backreference = bug

From: Benno Schulenberg
Subject: [bug #16179] 'egrep -i ' + backreference = bug
Date: Mon, 01 Jan 2007 14:37:07 +0000
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.9) Gecko/20061226 Firefox/1.5.0.9 
Follow-up Comment #2, bug #16179 (project grep):

Sorry, it is indeed a bug.  It only works right for UTF8 locales,
not for other ones:

$ echo 'The the' | LC_ALL=nl_NL.utf8 src/grep -E -i '(the) \1'
The the
$ echo 'The the' | LC_ALL=nl_NL src/grep -E -i '(the) \1'
$ echo 'The the' | LC_ALL=C src/grep -E -i '(the) \1'


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