Hi, I managed to download ucharclasses.zip from CTAN. I will definitely try to use it for my MuLTiFlow project: http://sourceforge.net/projects/multiflow/develop Thanks Michiel Kamermans!!
Lua has another way I suppose, I like that cute little language!! Thanks Khaled Hosny!! I agree with Khaled Hosny that font switching and text directionality are two different issues. The difficult question is whether UTF-8 editors should switch direction by sensing the UTF-8 characters? I have had unpleasant surprises both with Tamil (left to right and complex ligatures) and Arabic (right to left) in "gedit". (There must be a way to switch this off I suppose) XeTeX allows you to switch on/off the language specific scripts, which is nice. I suppose there are other views on this from WYSIWYG people. Browsers sense the characters and switches them, and I think it is hard-wired based on the UTF-8 character values and does not pick it up from the font. I suppose these are early days for unicode, especially for Indic, Hebrew and Arabic. Suki
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