From: Drew Adams <drew.adams@oracle.com>
To: "John Wiegley" <jwiegley@gmail.com>,
"Etienne Prud’homme" <e.e.f.prudhomme@gmail.com>
Cc: emacs-devel@gnu.org
Subject: RE: Adding customization types
Date: Tue, 19 Sep 2017 17:01:56 -0700 (PDT) [thread overview]
Message-ID: <b702f40c-312c-4f2b-994f-8ee9f15b83b9@default> (raw)
In-Reply-To: <m2377iw8p0.fsf@newartisans.com>
> PE> One of the widget (or type), I would like to get is major-mode and
> PE> probably minor-mode too. Is there any reason why it was never included?
>
> EP> Given we could know if a symbol is a major-mode, would it be okay if I
> PE> made a patch for that (to be included in `wid-edit.el`)?
>
> This sounds useful to me.
>
> I also briefly looked for a general way to say "symbols matching a
> predicate", for one-off types similar to the above request. Is that possible?
1. Do you mean for completion when entering a symbol value for a
field? If so, I don't think that has been implemented.
(In fact, it seem that if you try using `M-TAB' in such a
field you get the inappropriate error message "Not in an
editable field", instead of a more appropriate message
telling you that completion is not available in that field.
That seems like a bug in `widget-complete'.)
2. Do you instead mean a way to restrict a field value to be
a symbol that matches a given predicate? If so, yes, you
can do that using custom type `restricted-sexp'.
prev parent reply other threads:[~2017-09-20 0:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-15 21:07 Adding customization types Etienne Prud’homme
2017-09-19 23:49 ` John Wiegley
2017-09-20 0:01 ` Drew Adams [this message]
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