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bug#41185: highlight-regexp not working properly for multiline-matching
From: |
Lars Ingebrigtsen |
Subject: |
bug#41185: highlight-regexp not working properly for multiline-matching regexps |
Date: |
Sun, 13 Jun 2021 13:37:31 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Michael Heerdegen <michael_heerdegen@web.de> writes:
> jan <rtm443x@googlemail.com> writes:
>
>> Try to regexp-highlight particular preprocessor use:
>>
>> M-s h r def HALF_LJ[^^]+?# endif RET
>>
>> (the [^^] is because I want it to match multiline, and I don't expect
>> any carets in the text, so I negate that to allow newline matches and
>> make it lazy to pick out the shortest +? It's sloppy but ok here)
>>
>> Does not highlight anything
>
> Yes, thanks.
>
> I can reproduce this. I'm not a font-lock expert, but I suspect that
> hi-lock doesn't support patterns matching multi-line text.
I can reproduce what the original bug report is seeing -- but that's
because the regexp seems to be wrong? There's nothing in the test file
that matches "# endif".
However the following call does properly match the region I think was
intended, and works fine, as far as I can see (in Emacs 26.1 and 28):
(highlight-regexp "def HALF_LJ[^^]+?# +endif")
Or do I misunderstand what the original problem was?
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
- bug#41185: highlight-regexp not working properly for multiline-matching regexps,
Lars Ingebrigtsen <=