GNU bug report logs - #32430
26; Elisp manual: Please consider indexing each char class

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Drew Adams <drew.adams <at> oracle.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 26; Elisp manual: Please consider indexing each char class
Date: Mon, 13 Aug 2018 09:45:13 -0700 (PDT)

I wanted to go to the Elisp manual section that specifies char-class
[:blank:].  I tried `i blank', even with substring matching.  Not
recalling that such critters are called "character classes" I just used
`i regexp' (with substring matching) to find entry "character classes in
regexp".

So not a big problem (assuming you have substring matching).  But I
think it would be helpful to add entries such as these (which don't
require substring matching):

ascii character class, regexp
alnum character class, regexp
alpha character class, regexp
blank character class, regexp
...

(Even better would be to allow :blank: etc. and [:blank:] instead of
just blank etc., but I seem to recall that Info won't allow such entries.)

In GNU Emacs 26.1 (build 1, x86_64-w64-mingw32)
 of 2018-05-30
Repository revision: 07f8f9bc5a51f5aa94eb099f3e15fbe0c20ea1ea
Windowing system distributor `Microsoft Corp.', version 10.0.16299
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Message #8 received at 32430 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Drew Adams <drew.adams <at> oracle.com>
Cc: 32430 <at> debbugs.gnu.org
Subject: Re: bug#32430: 26; Elisp manual: Please consider indexing each char
 class
Date: Sat, 13 Jul 2019 04:56:25 +0200

Drew Adams <drew.adams <at> oracle.com> writes:

> I wanted to go to the Elisp manual section that specifies char-class
> [:blank:].  I tried `i blank', even with substring matching.  Not
> recalling that such critters are called "character classes" I just used
> `i regexp' (with substring matching) to find entry "character classes in
> regexp".
>
> So not a big problem (assuming you have substring matching).  But I
> think it would be helpful to add entries such as these (which don't
> require substring matching):
>
> ascii character class, regexp
> alnum character class, regexp
> alpha character class, regexp
> blank character class, regexp

Makes sense.  I've now added some of the more interesting classes, but
not the entire list of classes.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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