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Re: variable width space display property value has no effect in empty o


From: David Kastrup
Subject: Re: variable width space display property value has no effect in empty overlay
Date: 12 Jun 2003 16:32:21 +0200
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3.50

Richard Stallman <address@hidden> writes:

>     That creates an overlay spanning 0 characters at the beginning
>     of the *scratch* buffer, with the display property set to (space
>     :align-to 4).  But the buffer display is not affected.
> 
> That is because no character has the display property.

An overlay spanning 0 characters with a display property set to an
image displays the image (when the move-on-insertion properties of the
overlay ends are equal, it serves more or less as a visible marker).
It does not seem consistent if other display properties intended to
mask the underlying character range (even if empty) do not behave
likewise.

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum




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