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From: "Stephen J. Turnbull" <stephen@xemacs.org>
Cc: Stefan Monnier <monnier+gnu/emacs@rum.cs.yale.edu>
Subject: Re: Printing elisp char literals
Date: Tue, 27 May 2003 19:39:49 +0900	[thread overview]
Message-ID: <87ptm4isga.fsf@tleepslib.sk.tsukuba.ac.jp> (raw)
In-Reply-To: <x57k8dtovh.fsf@lola.goethe.zz> (David Kastrup's message of "26 May 2003 22:49:22 +0200")

>>>>> "David" == David Kastrup <David.Kastrup@t-online.de> writes:

    David> "Stefan Monnier" <monnier+gnu/emacs@rum.cs.yale.edu>
    David> writes:

    >> Let's say I have an integer.  How can I check whether it's a
    >> char ?

Doesn't the optional argument to char-valid-p do the right thing?

And pretty clearly `event-modifiers' extracts the modifiers into a
Lispy format.

    David> IIRC, XEmacs has sort of an opaque character representation
    David> type, so it might be worth borrowing an idea or two from
    David> them in this regard before reinventing the wheel.  Stephen,
    David> any idea of whether something might apply here?

Besides the fact that it looks like these APIs already exist, even for
more complex cases I don't think so.  While I believe the XEmacs model
is a good one, it took several years to shake out many bugs due to
errors in porting code from the old "characters are a subset of
integers" model.

This would best be done in combination with a large revision of basic
Mule functionality, such as in emacs-unicode, if it's considered
desirable.


-- 
Institute of Policy and Planning Sciences     http://turnbull.sk.tsukuba.ac.jp
University of Tsukuba                    Tennodai 1-1-1 Tsukuba 305-8573 JAPAN
               Ask not how you can "do" free software business;
              ask what your business can "do for" free software.

  reply	other threads:[~2003-05-27 10:39 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-05-26 20:27 Printing elisp char literals Stefan Monnier
2003-05-26 20:49 ` David Kastrup
2003-05-27 10:39   ` Stephen J. Turnbull [this message]
2003-05-27  0:02 ` Miles' patch still fixes xfaces.c Robert J. Chassell
2003-05-27 22:40   ` Richard Stallman
2003-05-28  0:46     ` Robert J. Chassell
2003-05-31 19:52       ` Richard Stallman
2003-05-31 21:43         ` Robert J. Chassell

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