[XeTeX] The future of XeTeX

[Zdenek Wagner]

2012/8/1 Keith J. Schultz <keithjschultz at web.de>:
>
> Am 01.08.2012 um 10:31 schrieb Zdenek Wagner <zdenek.wagner at gmail.com>:
>
> [snip, snip]
>
>> XeTeX is not a remedy to TFM deficiencies, it is again the remedy of
>> encoding deficiencies. It won't be that difficult to extend TFM but
>> implementation of Unicode and support for comlpex Arabic and Asian
>> scripts required complex rewrite.
>
> I am not to sure that the rewrite would be that hard! most of the work
> is already done!!
>
I mean complete rewrite when going from 8-bit TeX. Now the basic
algorithms for use of UTF-8 are implemented both in XeTeX and luatex
but luatex is missing the support for many scripts.

> TFM just needs to be adjusted. To over simplify. We can use the unicode support
> we have and map TFM to that. The rest ...
>
XeTeX and luatex can find the metric information by other means so
that the TFM files are not needed for OTF fonts. The metric data
structures are created in TeX's memory.

> regards
>         Keith.
>
>
>
>
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-- 
Zdeněk Wagner
http://hroch486.icpf.cas.cz/wagner/
http://icebearsoft.euweb.cz