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Article #323

Re: pcl-cvs 2.9.9 with mule 2.3

#323
From: amanatto
Date: Fri, 26 May 2000 00:00
44 lines
2347 bytes
ใ‚‚ใ†่งฃ็ญ”ใŒๅ‡บใฆใ„ใพใ™ใŒใ€ๅ‚่€ƒใพใงใซใ€‚

Katsumi Yamaoka <yamaoka@jpl.org> writes:
> ๅฐๅฑฑใ•ใ‚“> ใ€€:symbolใจใ„ใ†ๆง‹ๆ–‡ใŒๆ–ฐใ—ใ„ใ‚‚ใฎใชใฎใงใฏใชใ„ใ‹ใจๆ€ใฃใฆใ„ใ‚‹ใฎ
> ๅฐๅฑฑใ•ใ‚“> ใงใ™ใŒใ€
> 
> ใใฎ้€šใ‚Šใ€‚ใผใใฏ colon keyword ใจ่ชญใ‚“ใงใ„ใพใ™ใŒใ€
> 
> ๅฐๅฑฑใ•ใ‚“> ใ“ใ‚Œใซ้–ขใ—ใฆ่ชฌๆ˜Žใ•ใ‚ŒใŸใ‚‚ใฎใฏใชใ„ใงใ—ใ‚‡ใ†ใ‹ใ€‚
> 
> ใใ†ใ„ใ†ใ‚‚ใฎใฏ่ฆ‹ใŸใ“ใจใŒใ‚ใ‚Šใพใ›ใ‚“ใ€‚Emacs 19 ใงใฏๅค‰ๆ•ฐใ‚’ไฝœใ‚‹ใฎใซ defvar
> ใชใฉใงๅฎš็พฉใ™ใ‚‹ๅฟ…่ฆใŒใ‚ใ‚Šใพใ—ใŸใŒใ€ใ“ใ‚Œใฏใใฎใพใพใง่ฆ‹ใŸใพใพใฎๅ€คใ‚’ๆŒใคๅฎš
> ๆ•ฐ(?) ใงใ™ใ€‚

Emacs ้™„ๅฑžใฎ NEWS (C-h n ใง้–‹ใ‘ใพใ™)ใซใฏใ€

* Lisp Changes in Emacs 20.1

** Basic Lisp changes

*** A symbol whose name starts with a colon now automatically
evaluates to itself.  Therefore such a symbol can be used as a constant.

ใจๆ›ธใ„ใฆใ‚ใ‚Šใพใ™ใ€‚ใ‚ใจใ€ Emacs Lisp Reference Manual edition 2.5 ใซใ‚‚
ใ‚ใ‹ใ‚Šใšใ‚‰ใ„ใงใ™ใŒใ€

Node: Constant Variables

Variables That Never Change
===========================

   In Emacs Lisp, certain symbols normally evaluate to themselves.
These include `nil' and `t', as well as any symbol whose name starts
with `:'.  These symbols cannot be rebound, nor can their values be
changed.  Any attempt to set or bind `nil' or `t' signals a
`setting-constant' error.  The same is true for a symbol whose name
starts with `:', except that you are allowed to set such a symbol to
itself.

ใจใ‚ใ‚Šใพใ™ใ€‚

--
ๆพค็”ฐ ๅ…‹ไนŸ <amanatto@mail2.dddd.ne.jp>
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From: amanatto@mail2.dddd.ne.jp
Subject: Re: pcl-cvs 2.9.9 with mule 2.3
Date: 2000/05/26
Message-ID: <87puqaq9n5.fsf@ama.musicpod.co.jp>
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