[XeTeX] various problems with ArabXeTeX

[François Charette]

Benjamin Geer a écrit :
> 2008/11/25 Ross Moore <ross at ics.mq.edu.au>:
>   
>> The default without specifying any font at all is in fact Scheherazade
>> with a scale factor of 2 --- see line 44 of arabxetex.sty .
>>     
>
> OK, but even if I let ArabXeTeX use its default font and scale factor,
> the line spacing is still uneven.  (See the attached files,
> arabxetex-test.tex and arabxetex-test.pdf; it's especially easy to see
> the unevenness in the last few lines of the document.)  Thank you for
> showing me different ways of setting font size and line spacing, but
> since I'm not a professional typesetter, I have no idea what values to
> use.  Professional typesetters know how to calculate line spacing in
> relation to font size in order to make the result look good, and LaTeX
> knows, too, when I use it to write in English.
>   
For the next version of arabxetex (and possibly also polyglossia) I will 
try to have the \baselineskip automatically set to some "reasonable" 
default value. I can't guarantee it will look good in all cases, but it 
will certainly do in the default case of Scheherazade with Scaling=2 .

> It's polyglossia that produces tiny, unreadable text if I don't
> specify a font size (see the attached files,
> polyglossia-tiny-text-test.tex and polyglossia-tiny-text-test.pdf).
> Also, polyglossia crashes if I don't specify a font (see
> polyglossia-crash-test.tex):
>   

The polyglossia documentation is very clear that users are expected to 
specify the fonts specific to each script used in the document.

F