[XeTeX] can't access superscript glyphs outside Latin-1?

[Georg Duffner]

Am 2013-04-02 18:28, schrieb Eric Abrahamsen:
> Khaled Hosny <khaledhosny at eglug.org>
> writes:
>
>> On Wed, Apr 03, 2013 at 12:05:49AM +0800, Eric Abrahamsen wrote:
>>>
>>> If the font has labeled its sups incorrectly, is it possible to edit the
>>> font to fix it? Or any other solutions...
>>
>> You can do virtually any thing by editing the font in a font editor :)
>> but if you mean within XeTeX, then the answer is no. If the glyphs you
>> want to use have Unicode characters, you may use a font mapping, but
>> that is a bad idea because it will break text extraction from PDF files
>> (copying, searching etc.)
>
> Yup, I meant edit the font -- I'd like to fix this properly! But I
> opened Janson in Fontforge and besides the superscript 1 2 and 3 (in the
> early section of the tables), there are no glyphs at all in the U207X
> range and neighborhood, where the subs and supers live. So I guess
> that's the source of my problem! Though they told me there was a full
> range of digits...
>
> Disappointing! But thanks again for the pointers.
>

I had a look at Janson Text, your observation is correct. There are no 
other superscripts than the ones you found too. To fix this, you’d have 
to draw them yourself.
Georg