For review: Typographic character units in complex scripts

The article Typographic character units in complex scripts 
<https://w3c.github.io/i18n-drafts/questions/qa-indic-graphemes.en.html> 
is out for wide review. We are looking for comments by *Thurday 25 
February*.

CSS defines the typographic character unit as a basic unit of text for 
use with editing operations, however the meaning of a that term can vary 
according to the operation, and there are issues in working with such 
units in complex scripts. In this article we look at examples of some of 
those differences and issues.

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