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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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