GNU bug report logs - #37659
rx additions: anychar, unmatchable, unordered-or

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Package: emacs;

Reported by: Mattias Engdegård <mattiase <at> acm.org>

Date: Tue, 8 Oct 2019 09:37:01 UTC

Severity: wishlist

Tags: fixed, patch

Fixed in version 27.1

Done: Mattias Engdegård <mattiase <at> acm.org>

Bug is archived. No further changes may be made.

Full log

Message #46 received at 37659 <at> debbugs.gnu.org (full text, mbox):

From: Mattias Engdegård <mattiase <at> acm.org>
To: Drew Adams <drew.adams <at> oracle.com>
Cc: Paul Eggert <eggert <at> cs.ucla.edu>, 37659 <at> debbugs.gnu.org
Subject: Re: bug#37659: rx additions: anychar, unmatchable, unordered-or
Date: Thu, 24 Oct 2019 11:09:36 +0200

24 okt. 2019 kl. 03.56 skrev Drew Adams <drew.adams <at> oracle.com>:
> 
> Is there an identifiable subset of rx features
> (operators, functions, thingies, or whatever
> its composable pieces are called) that map
> (even if not one-to-one) to regexp syntax
> components?

Almost all of rx maps one-to-one to the string regexp syntax. The rx docs mention the corresponding string regexps for most forms.

In addition, rx is self-explaining in the sense that a user curious about what a particular expression means needs only to evaluate (rx SOMETHING) to get the translation. (There are external packages for going in the other direction.)
This bug report was last modified 5 years and 81 days ago.

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