[XeTeX] a package for transition ryles based on unicode block (allowing amongst other things automatic font switching between languages)

[Michiel Kamermans]

Hi all,

I've been working on updating my old fontwrap package, which relied on 
PerlTeX to get its job of automatic fontswitching between languages. It 
did this by checking for transitions from characters in one unicode 
block to characters in another, but relying on PerlTeX was rather 
clumsy. I've now written it in such a way that it will run as a pure 
Xe(La)TeX package, relying only on the availability of XeTeX's character 
classes. For those who use a XeTeX version pre-TeX Live 2009, the class 
imports the same code that the new version will use to request new 
character classes, and for those who are already working with what will 
be the new release, it will simply use the one defined for XeLaTeX itself.

A tgz of the full package + description, as well as just the description 
in pdf, can (for now) be found at 
http://pomax.nihongoresources.com/downloads/ucharclasses/ and I'd like 
to ask whether you can spot any glaring problems with this package 
before I send it up to CTAN. The functionaliy is perhaps one that might 
be useful as something that doesn't require a package, since XeTeX's 
strength is in the unicode domain, and this package provides named class 
transitions for unicode blocks. But that's probably a different dicussion.

- Mike "Pomax" Kamermans
nihongoresources.com