[XeTeX] XeLaTeX and SIunitx

[Joseph Wright]

On 11/06/2012 21:57, Joseph Wright wrote:
> Hello all,
> 
> Taking a look back over the code, I already have some auto-detection in
> for picking up UTF-8 symbols when the correct engine is in use.
> 
> I've revised this a bit for the next release (v2.5d, on CTAN tomorrow),
> so that all of the 'problematic' symbols are covered in what seems to be
> the best way possible. Nothing happens unless appropriate support
> (fontspec/unicode-math) is loaded. If it is, then you get the following
> symbols:
> 
>  - Ångström       u+00c5 (u+212b normalises here)
>  - Degree Celsius u+00b0 + "C" (u+2103 is a compatibility character)
>  - Micro          u+00b5 (u+03bc is wrong)
>  - Ohm            u+03a9 (u+2126 normalises here)
> 
>  - Degree     u+00b0
>  - Arc minute u+2032 (requires unicode-math)
>  - Arc second u+2033 (requires unicode-math)

Further to that, if you look through the source of siunitx you may
wonder where this takes place as the symbols are not there. To avoid any
issues with pdfTeX, this is all done using \char and an appropriate
constant in each case.
-- 
Joseph Wright