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Re: bidi-display-reordering is now non-nil by default


From: David Kastrup
Subject: Re: bidi-display-reordering is now non-nil by default
Date: Fri, 05 Aug 2011 07:46:21 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux)

"Stephen J. Turnbull" <address@hidden> writes:

>  > And then move that string when text is inserted after the preceding
>  > non-mark character, or that character is deleted, yes?  Sounds like
>  > fun.
>
> Put that way, not at all.  But you know what?  Emacs has long ago
> solved such problems, at least most of them.  IIUC, in XEmacs, this
> could easily be implemented with a zero-length extent with appropriate
> stickiness attributes.  If Emacs doesn't already have such a device,

Text properties can't be zero-length, overlays don't copy along with
text.  If this were different, you could copy an empty region and could
not be sure that it did not contain extents after all.

-- 
David Kastrup




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