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Subject: [Bug 191086] New: grep and bsdgrep do not recognize [[:<:]] and
 [[:>:]]
Date: Mon, 16 Jun 2014 13:33:20 +0000
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X-Bugzilla-Version: 9.2-RELEASE
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X-Bugzilla-Severity: Affects Many People
X-Bugzilla-Who: weeks@iastate.edu
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=191086

            Bug ID: 191086
           Summary: grep and bsdgrep do not recognize [[:<:]] and [[:>:]]
           Product: Base System
           Version: 9.2-RELEASE
          Hardware: Any
                OS: Any
            Status: Needs Triage
          Severity: Affects Many People
          Priority: ---
         Component: bin
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: weeks@iastate.edu

grep and bsdgrep do not recognize the '[[:<:]]' or '[[:>:]]' bracket
expressions described in re_format(7), though sed does:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
$ printf 'foobar\nfoo bar\nbaz' | grep 'foo[[:>:]]'
grep: Invalid character class name
$ printf 'foobar\nfoo bar\nbaz' | grep '[[:<:]]bar'
grep: Invalid character class name
$ printf 'foobar\nfoo bar\nbaz' | bsdgrep 'foo[[:>:]]'
bsdgrep: Invalid character class name
$ printf 'foobar\nfoo bar\nbaz' | bsdgrep '[[:<:]]bar'
bsdgrep: Invalid character class name
$ printf 'foobar\nfoo bar\nbaz' | sed -n '/foo[[:>:]]/p'
foo bar
$ printf 'foobar\nfoo bar\nbaz' | sed -n '/[[:<:]]bar/p'
foo bar
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

-- 
Nathan Weeks
IT Specialist
USDA-ARS Corn Insects and Crop Genetics Research Unit
Crop Genome Informatics Laboratory
Iowa State University
http://weeks.public.iastate.edu/

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