GNU bug report logs - #29097
25.1; to support '_' as a word constituent, subword-mode regexes need updating

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Message #14 received at 29097 <at> debbugs.gnu.org (full text, mbox):

From: Masatake YAMATO <yamato <at> redhat.com>
To: eliz <at> gnu.org
Cc: 29097 <at> debbugs.gnu.org, checker <at> d6.com
Subject: Re: bug#29097: 25.1; to support '_' as a word constituent,
 subword-mode regexes need updating
Date: Wed, 01 Nov 2017 14:54:27 +0900 (JST)

Hi,

I read the original bug report.

I wonder why you want do

   (modify-syntax-entry ?_ "w")

.

This change suppresses the difference of \M-f and \M-C-f.
Do you really want this suppression?

Masatake YAMATO


>> From: Chris Hecker <checker <at> d6.com>
>> Date: Tue, 31 Oct 2017 20:51:23 -0700
>> Cc: yamato <at> redhat.com
>> 
>> If you like using identifiers with underscores (_) in them, like
>> C macros or even just regular identifiers, you can add _ as a word
>> constituent in the syntax tables, but if you're using subword-mode
>> then the forward and backwards regexes need updating to work
>> correctly.  Here is the relevant section of my .emacs c-mode hook:
> 
> Perhaps we should make subword-forward-regexp and
> subword-backward-regexp defcustoms?

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