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: 積丹尼 Dan Jacobson <jidanni <at> jidanni.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 bug report

#30643: Mention . won't match illegal characters

which was filed against the grep package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 30643 <at> debbugs.gnu.org.

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

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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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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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