[luatex] How to color unicode combinging characters.

Simo Ojala smsojala at gmail.com
Thu Mar 17 21:25:11 CET 2011


I am really just taking my first steps in TeX world, so forgive me my 
ignorance. However I already have this quite advanced coloring problem and 
I have read and been told that LuaTeX might be able to solve this kind of 
stuff. So thats why I try to ask this here, hopefully found the right 
place to post this kind of problem...

I am trying to create some ancient hebrew inflection charts and the 
problem is to be able to paint vowels (and other diacritics) without 
changing color of the consonants they are combined with. (The vowels are 
unicode combining characters which are positioned according to and 
combined with consonants.) I already have got some suggestions that I 
could do some thing like this:

\textcolor{red}{a}\textcolor{blue}{b} % where 'a' represents a consonant 
and 'b' a vowel

However this leads to situation where the characters are not actually 
combined, but just placed separately to the document. That it turn leads 
to positioning problems and other bad stuff.


Simo Ojala

PS: If I failed explaining my problem clearly enough, please checkout 
my question at TeX/Stackexchange.


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