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From: "Lennart Borgman (gmail)" <lennart.borgman@gmail.com>
To: rms@gnu.org
Cc: Drew Adams <drew.adams@oracle.com>, emacs-devel@gnu.org
Subject: Re: custom type `color' is not enforced
Date: Thu, 20 Dec 2007 02:27:05 +0100	[thread overview]
Message-ID: <4769C4E9.20800@gmail.com> (raw)
In-Reply-To: <E1J59fX-0000Jg-SN@fencepost.gnu.org>

Richard Stallman wrote:
> I agree that these changes would be improvements.  However, I don't
> think we have any way to test the validity of a regexp without
> matching it, and matching it (even against a null string) could
> cause an infinite loop.

The widget library already validates

   :type 'regexp

with the function (defun widget-regexp-validate (widget) ... ) which 
does (string-match regexp "").

  reply	other threads:[~2007-12-20  1:27 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <DNEMKBNJBGPAOPIJOOICAELMEBAA.drew.adams@oracle.com>
2007-12-18 23:00 ` custom type `color' is not enforced Drew Adams
2007-12-20  0:53   ` Richard Stallman
2007-12-20  1:27     ` Lennart Borgman (gmail) [this message]
2007-12-21  3:04       ` Richard Stallman
2007-12-20 19:11     ` Drew Adams
2007-12-20 19:27       ` Drew Adams
2007-12-21  3:59       ` Richard Stallman
2007-12-21  6:47         ` Drew Adams
2007-12-21  3:59       ` Richard Stallman
2007-12-21  6:48         ` Drew Adams
2007-12-21  9:36         ` Lennart Borgman (gmail)
2007-12-21 18:20           ` Drew Adams
2007-12-21 22:03             ` Drew Adams
2007-12-22  6:29           ` Richard Stallman
2007-12-22 20:58             ` Lennart Borgman (gmail)
2007-12-23 10:54               ` Per Abrahamsen
2007-12-23 12:46                 ` Lennart Borgman (gmail)
2007-12-25 13:52                   ` Per Abrahamsen

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