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Subject: [Bug 208117] equivalence classes do NOT work at all
Date: Fri, 18 Mar 2016 09:45:38 +0000
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X-Bugzilla-Product: Base System
X-Bugzilla-Component: gnu
X-Bugzilla-Version: 11.0-CURRENT
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D208117

            Bug ID: 208117
           Summary: equivalence classes do NOT work at all
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: gnu
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: geodelles@yahoo.com

% echo =C3=A1 | grep '[[=3Da=3D]]'
% echo =C3=B4 | grep '[[=3Do=3D]]'
%=20

On Linux to compare:

$ echo =C3=A1 | grep '[[=3Da=3D]]'
=C3=A1
$ echo =C3=B4 | grep '[[=3Do=3D]]'
=C3=B4
$

See the IEEE Std:

=C2=AB9.3.5 RE Bracket Expression
...It consists of one or more expressions: collating elements, collating
symbols, equivalence classes...=C2=BB

http://pubs.opengroup.org/onlinepubs/009696899/basedefs/xbd_chap09.html

--=20
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