GNU bug report logs - #39678
'grep --ignore-case --color' does not always color the matches

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From: Tomasz Dziendzielski <tomasz.dziendzielski <at> gmail.com>
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: 39678 <at> debbugs.gnu.org
Subject: bug#39678: 'grep --ignore-case --color' does not always color the matches
Date: Mon, 18 Oct 2021 17:39:49 +0200

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Now I noticed that it introduces inconsistency, but due to a second problem
- that grep prints lines even when there were no matching strings. For
example if I run:
$ echo "a" | grep -E "{1,3}"
$ echo "a" | grep -i "\a"
then it returns the string "a" even though it doesn't match anything. With
my patch it correctly does not print the string but I think for consistency
it also requires adaptations in case --color was not passed. I'll try to
work on that.

Best regards,
Tomasz Dziendzielski

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