[XeTeX] problems with hyperref \url box

[Jonathan Kew]

On 4 Sep 2006, at 10:41 am, Peter Dyballa wrote:

>
> Am 04.09.2006 um 10:47 schrieb Jonathan Kew:
>
>>>> ! Extended mathchar used as mathchar (2097151).
>>>> <to be read again>
>>>>                    <
>>>> l.6 \item[E-Mail] \url{user at domain.com}
>>>> ........
>>
>> Sorry, this is definitely a bug in xetex 0.995.
>
> In my teTeX I have four different url.sty files:
>
> - 20545 24 Okt  2004 /usr/local/teTeX/share/texmf.gwtex/xetex/latex/ 
> url/url.sty
> Ã 15025 18 Apr  2005 /usr/local/teTeX/share/texmf.local/tex/latex/ 
> html/url.sty
> - 20626  7 Mai 19:43 /usr/local/teTeX/share/texmf.local/tex/xelatex/ 
> url.sty
> - 20534  4 Apr  2004 /usr/local/teTeX/share/texmf.tetex/tex/latex/ 
> url/url.sty
>
> The one checked with à works with Pablo's example and XeTeX,  
> Version 3.141592-2.2-0.995 (Web2C 7.5.5), from first version of i- 
> Package.

Interesting! I guess this is a newer version from the latest LaTeX  
update, and it must use a different approach to some of the internal  
definitions, such that it doesn't run into the xetex mathcode bug.

So using the experimental LaTeX update looks like another workaround  
in this case, but it's still a bug in xetex, and will probably  
surface elsewhere sooner or later.

(BTW, to prove there's a bug in xetex, you can try a command-line  
example:

   xetex \\scrollmode \\mathcode100=32768 \\showthe\\mathcode100 \\end

which will give the same error message; compare the same command line  
with regular tex.)

JK