From: michael-franzese@gmx.com
To: "Óscar Fuentes" <ofv@wanadoo.es>
Cc: help-gnu-emacs@gnu.org
Subject: Re: pcase without code duplication
Date: Fri, 23 Apr 2021 05:45:43 +0200 [thread overview]
Message-ID: <trinity-b582db73-b8a1-456d-b2a5-d3c696103424-1619149543566@3c-app-mailcom-bs03> (raw)
In-Reply-To: <877dktel9m.fsf@telefonica.net>
Can one also use nil as option in pcase. What possibilities
exist for (_ ?
e.g.
(nil
((or 0 nil)
((or _ nil)
Regards
Michael
> Sent: Friday, April 23, 2021 at 3:24 PM
> From: "Óscar Fuentes" <ofv@wanadoo.es>
> To: help-gnu-emacs@gnu.org
> Subject: Re: pcase without code duplication
>
> michael-franzese@gmx.com writes:
>
> > I am using pcase, but am wondering whether I can have pcase
> > for 0 and 2 do the same things without adding a separate pcase
> > (0 and duplicating the statements.
> >
> > (pcase orthogr-region
> > (0 ... ) ; same operations as pcase 2
> > (1 ... )
> > (2 ... ) ; operations
> > (_ ... ) )
>
> (let ((xx 2))
> (pcase xx
> (1 (message "one"))
> ((or 0 2) (message "zero or two"))
> (_ (message "something else"))))
>
>
>
next prev parent reply other threads:[~2021-04-23 3:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-23 2:45 pcase without code duplication michael-franzese
2021-04-23 3:24 ` Óscar Fuentes
2021-04-23 3:45 ` michael-franzese [this message]
2021-04-23 4:01 ` Stefan Monnier
2021-04-23 3:51 ` [External] : " Drew Adams
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