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From: Greg Hill <ghill@synergymicro.com>
Subject: Re: Built-in Functions and Special Forms
Date: Wed, 26 Feb 2003 20:02:04 -0800	[thread overview]
Message-ID: <p04310107ba833c6582e8@[198.17.100.22]> (raw)


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>At 2:38 AM +0100 2/27/03, Pascal Bourguignon wrote:
>>I've not found any predicate to distinguish between built-in functions
>>and special forms.
>
>In Emacs-21, the documentation is consistent enough that this seems 
>to always work.
>
>(defun special-form-p (symbol)
>     (string-match "\\.\\.\\.\\|&rest" (documentation symbol)))

Of course that should really be:

(defun special-form-p (symbol)
     (and (subrp (symbol-function symbol))
          (string-match "\\.\\.\\.\\|&rest" (documentation symbol))))

--Greg

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             reply	other threads:[~2003-02-27  4:02 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-02-27  4:02 Greg Hill [this message]
     [not found] <mailman.2511.1046318512.21513.help-gnu-emacs@gnu.org>
2003-02-28 18:51 ` Built-in Functions and Special Forms Artist
  -- strict thread matches above, loose matches on Subject: below --
2003-02-26 20:50 Artist
2003-02-26 21:08 ` Barry Margolin
2003-02-27  0:02   ` Unknown
2003-02-27  1:38 ` Pascal Bourguignon
2003-02-27  3:42   ` Greg Hill
2003-02-27  7:31   ` Miles Bader

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