GNU bug report logs - #41006
26.3; regular expressions documentation

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Package: emacs;

Reported by: jan <rtm443x <at> googlemail.com>

Date: Fri, 1 May 2020 19:07:01 UTC

Severity: wishlist

Found in version 26.3

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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From: Mattias Engdegård <mattiase <at> acm.org>
To: jan <rtm443x <at> googlemail.com>
Cc: Richard Stallman <rms <at> gnu.org>, 41006 <at> debbugs.gnu.org
Subject: bug#41006: 26.3; regular expressions documentation
Date: Sun, 3 May 2020 15:07:39 +0200

The disposition of the regexp documentation could be improved, yes. Currently it's arranged by syntax, which is the implementor's view, rather than by function, which is the user's. Condensing related text into a single page would help. (Cf. the more recently written section on rx in Emacs 27.)

The manual does say

‘\{M,N\}’
     [...] If M is omitted, the minimum is 0; if N is omitted, there is no maximum.

so you may be mistaken on that point.

The \= anchor is probably less frequently used than the other zero-width assertions such as $, \< etc but does come in handy occasionally. It's there in case you need it.
This bug report was last modified 3 years and 26 days ago.

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