[XeTeX] A Quick question

[Joseph Wright]

VAFA KHALIGHI wrote:
> What I am going to ask has been achieven in text by Ross Morre's hints.
> 
> Now this question applies to maths environments,
> 
> In English we have 1.2 (read as 1 point 2 as a number in maths) but in
> Farsi, instead of the dot (or the point) we have a unicode character (066B).
> If I tell XeTeX, that change the dot to this unicode character, then
> whenever I put the dot, I will get that unicode character, so the question
> is how can I tell xetex that if we have <number1>.<number2>, treat that dot
> as the unicode character and otherwise treat it as just a dot.
> 

No idea if you can do that, but you could look at my siunitx package for
something like this:

\documentclass{article}
\usepackage[decimalsymbol = <whatever character>]{siunitx}
\begin{document}
\num{1.23} % Result will be 1<whatever character>23
\end{document}

-- 
Joseph Wright