[XeTeX] Typesetting Greek mathematical text using Unicode

[Ross Moore]

Hello D. and Andrew,

On 19/01/2012, at 3:06 AM, Andrew Moschou wrote:

> I opened Cambria in a font editor, and it looks fine. I also opened Cambria in the character map, and it displayed it wrong just as you describe. No idea where the problem lies...

When I look into it on a Mac, then Cambria does not support that
code-point, at least not as a single pre-composed glyph.  
(see image, where Cambria does not appear in the list of fonts)

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However, Cambria does support 
      Ux0386  Greek Capital Letter Alpha with Tonos.

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but then the "Greek Extended" block was presumably added to Unicode
much later than the standard Greek block.

> 
> Andrew


> \documentclass[a4paper]{article}
> \usepackage{xltxtra}
> \setmainfont{Cambria}
> \begin{document}
> ???????  \char"1F08
> \end{document}
> 
> 
> 
> I get for character "1F08 Greek Capital Letter Alpha with Psili"
> 
> something that looks like A' with the accent to the right, not the left.

Your font-rendering engine must be doing some kind of substitution.

> 
> With Arial font, I get the correct letter.

Arial font has the correct character.

> 
> Is there something wrong with the font itself, or with how XeTeX uses the font?

XeTeX just passes the character code to another engine.

> 
> I have not installed any fonts, it's just the Cambria font that Word has.
> 
> In Word, 'A looks correct when I insert symbol 1F08

But is it really coming from Cambria? I'd suspect not.
Or could it be that you are getting Alpha + Tonos, not with Psili ?


> 
> Thank you


Hope this helps,

	Ross

------------------------------------------------------------------------
Ross Moore                                       ross.moore at mq.edu.au 
Mathematics Department                           office: E7A-419      
Macquarie University                             tel: +61 (0)2 9850 8955
Sydney, Australia  2109                          fax: +61 (0)2 9850 8114
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