Re: Arabic support

[Jason Rumney]

On 02/09/2010 01:55, Eli Zaretskii wrote:
> Also, it looks like uniscribe_shape is repeatedly called from
> font-shape-gstring to shape the same text that is progressively
> shortened.  For example, the first call will be with a 7-character
> string whose contents is
>
>     {0x627, 0x644, 0x633, 0x651, 0x644, 0x627, 0x645}
>
> The next call is with a 6-character string whose contents is
>
>     {0x627, 0x644, 0x633, 0x651, 0x644, 0x627}
>
> then a 5-character string {0x627, 0x644, 0x633, 0x651, 0x644}, etc.
>    

This seems consistent with the output that is produced, which seems to 
repeat sequences within the text.

Regarding the double reordering, when I originally wrote the code for 
uniscribe, I did not understand how the bidi support for Emacs was going 
to work, so I included some bidi reordering in the uniscribe handling. 
Probably this needs to be reviewed now.