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From: Richard Stallman <rms@gnu.org>
Cc: jet@gyve.org, miles@lsi.nec.co.jp, miles@gnu.org, emacs-devel@gnu.org
Subject: Re: Behavior of evaporate
Date: Fri, 26 Sep 2003 22:31:59 -0400	[thread overview]
Message-ID: <E1A34sJ-00059d-Kx@fencepost.gnu.org> (raw)
In-Reply-To: <x54qyzdi3f.fsf@lola.goethe.zz> (message from David Kastrup on 26 Sep 2003 11:17:24 +0200)

    Yes.  From the manual:

    `evaporate'
	 If this property is non-`nil', the overlay is deleted automatically
	 if it ever becomes empty (i.e., if it spans no characters).

    But the overlay does not become empty in your example.  It _is_
    already empty.

I clarified the manual as follows:

@item evaporate
@kindex evaporate @r{(overlay property)}
If this property is non-@code{nil}, the overlay is deleted automatically
if it becomes empty (i.e., if its length becomes zero).  However,
if the overlay is @emph{already} empty, @code{evaporate} does not
delete it.

Is that entirely correct?

Also, is that really what we want?  Maybe setting the `evaporate'
property non-nil should delete the overlay immediately if it is
already empty.  That would be more consistent.

  parent reply	other threads:[~2003-09-27  2:31 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-01-10 12:16 popup menu support for smerge-mode Masatake YAMATO
2003-01-11 19:41 ` Stefan Monnier
2003-08-24  6:03   ` Masatake YAMATO
2003-08-24 14:42     ` Stefan Monnier
2003-09-18  8:54       ` Masatake YAMATO
2003-09-18 15:27         ` Stefan Monnier
2003-09-19  9:25           ` Masatake YAMATO
2003-09-19 15:57             ` Stefan Monnier
2003-09-26  7:58               ` Masatake YAMATO
2003-09-26  8:44                 ` Miles Bader
2003-09-26  8:53                   ` Behavior of evaporate Masatake YAMATO
2003-09-26  9:05                     ` Miles Bader
2003-09-26  9:17                     ` David Kastrup
2003-09-26 15:59                       ` Stefan Monnier
2003-09-27  2:31                       ` Richard Stallman [this message]
2003-09-30 20:56                         ` Alex Schroeder
2003-10-20 21:23                 ` popup menu support for smerge-mode Stefan Monnier
2004-03-10  4:32                   ` Masatake YAMATO
2004-03-11  7:00                   ` Masatake YAMATO
2003-10-14  3:59               ` Masatake YAMATO

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