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From: "Daniel Martín" <mardani29@yahoo.es>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: emacs-devel@gnu.org
Subject: Re: Make regexp handling more regular
Date: Wed, 02 Dec 2020 22:28:31 +0100	[thread overview]
Message-ID: <m17dpzrj7k.fsf@yahoo.es> (raw)
In-Reply-To: <87lfeg60iy.fsf@gnus.org> (Lars Ingebrigtsen's message of "Wed, 02 Dec 2020 10:05:25 +0100")

Lars Ingebrigtsen <larsi@gnus.org> writes:
>
> (when (setq match (rx-search-forward "p[a-z]+" nil t))
>   (with-temp-buffer
>     (insert (match match 0))
>     (buffer-string)))
>

The way other Lisp-like languages like Clojure work is by returning
either nil (if no match), a string (if the regular expression matched
the string and didn't have any capture group), or a vector where the
first element is the entire match and the rest of elements are the group
matches.

I think it's a nice API, specially because you can use destructuring on
the return value to discern the cases.



  parent reply	other threads:[~2020-12-02 21:28 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-02  9:05 Make regexp handling more regular Lars Ingebrigtsen
2020-12-02 10:44 ` Lars Ingebrigtsen
2020-12-02 11:12 ` Stefan Kangas
2020-12-02 11:21   ` Philipp Stephani
2020-12-03  8:31   ` Lars Ingebrigtsen
2020-12-02 17:17 ` Stefan Monnier
2020-12-02 17:45   ` Yuan Fu
2020-12-02 19:24     ` Stefan Monnier
2020-12-03  8:40       ` Lars Ingebrigtsen
2020-12-03  8:38   ` Lars Ingebrigtsen
2020-12-03 15:10     ` Stefan Monnier
2020-12-03 16:58       ` Lars Ingebrigtsen
2020-12-03 17:40         ` Stefan Monnier
2020-12-02 21:19 ` Juri Linkov
2020-12-03  8:41   ` Lars Ingebrigtsen
2020-12-03 15:00     ` Stefan Monnier
2020-12-03 21:02       ` Juri Linkov
2020-12-03 22:20         ` Vasilij Schneidermann
2020-12-02 21:28 ` Daniel Martín [this message]
2020-12-03  4:16 ` Adam Porter

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