GNU bug report logs - #30643
Mention . won't match illegal characters

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#30643: closed (Mention . won't match illegal characters)
Date: Tue, 22 Sep 2020 18:58:02 +0000

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Your message dated Tue, 22 Sep 2020 11:57:02 -0700
with message-id <52b19f39-76b9-bd97-b6d3-420dc99fef33 <at> cs.ucla.edu>
and subject line Mention . won't match illegal characters
has caused the debbugs.gnu.org bug report #30643,
regarding Mention . won't match illegal characters
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
30643: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=30643
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Contact help-debbugs <at> gnu.org with problems

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From: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
To: bug-grep <at> gnu.org
Subject: Mention . won't match illegal characters
Date: Wed, 28 Feb 2018 14:30:24 +0800

$ man grep says

       The period . matches any single character.

OK but it should also mention that illegal characters for the current
locale will never be matched by ".".

$ LC_ALL=C           grep  .東看 x.html|qprint -e
          <p>=E5?=91=E6=9D=B1=E7=9C=8B</p>
$ LC_ALL=zh_TW.UTF-8 grep  .東看 x.html|qprint -e
$

Also mention it on (info "(grep) Fundamental Structure").

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
Cc: 30643-done <at> debbugs.gnu.org
Subject: Mention . won't match illegal characters
Date: Tue, 22 Sep 2020 11:57:02 -0700

> $ man grep says
> 
>        The period . matches any single character.
> 
> OK but it should also mention that illegal characters for the current
> locale will never be matched by ".".


This has been done, by adding "It is unspecified whether it matches an encoding 
error" as part of a fix for Bug#30643. Thanks for reporting the problem.

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