GNU bug report logs - #43577
wrong result for grep -io in turkish locale

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Package: grep;

Reported by: Norihiro Tanaka <noritnk <at> kcn.ne.jp>

Date: Wed, 23 Sep 2020 13:24:02 UTC

Severity: normal

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Norihiro Tanaka <noritnk <at> kcn.ne.jp>
To: <bug-grep <at> gnu.org>
Subject: wrong result for grep -io in turkish locale
Date: Wed, 23 Sep 2020 22:23:09 +0900

In turkish locale, upper and lower case are mapped as following.

  U0049 <-> U0131
  U0069 <-> U0130

It's expected that both following test cases returns U0130, but later
returns nothing.

$ printf '\304\260\n' >I  # U0130
$ env LC_ALL=tr_TR.utf8 grep -i i I
?  # U0130
$ env LC_ALL=tr_TR.utf8 grep -oi i I
$ 

By the way, both following test cases work correctly.

$ printf '\304\260\n' >i  # U0131
$ env LC_ALL=tr_TR.utf8 grep -i I i
?  # U0131
$ env LC_ALL=tr_TR.utf8 grep -oi I i
?  # U0131
$
This bug report was last modified 4 years and 237 days ago.

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