GNU bug report logs - #47112
cperl-mode: Wrong highlighting of tr, y, q with _

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From: haj <at> posteo.de (Harald Jörg)
To: 47112 <at> debbugs.gnu.org
Subject: bug#47112: Don't interpret '_' as word boundary [PATCH]
Date: Sat, 13 Mar 2021 01:27:16 +0100

[Message part 1 (text/plain, inline)]

This is a border case which affects several dark corners in CPerl mode.
Per default, the '_' character is not a word character, but a symbol
character in Perl.

The bogus regexp in `cperl-find-pods-heres' checks the quote-like things
for "ending in a word boundary".  Per default there _is_ a word boundary
between 'y' and '_', and from here it goes downward.

It is wrong to change the search pattern to "symbol boundary" instead of
"word boundary": The ':' character is also a symbol in CPerl mode and
the regexp would then miss q:string: constructs.

The patch is a small change to eliminate the false detection of
quote constructs by yet another special case, plus some tests.
-- 
Cheers,
haj

[0001-cperl-mode-Don-t-interpret-y_-as-start-of-y-function.patch (text/x-diff, attachment)]

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