On Oct 25, 2013, at 18:35 , Jason Orendorff <[email protected]> wrote:

> UTF-16 is designed so that you can search based on code units
> alone, without computing boundaries. RegExp searches fall in this
> category.

Not if the RegExp is case insensitive, or uses a character class, or ".", or a 
quantifier - these all require looking at code points rather than UTF-16 code 
units in order to support the full Unicode character set.

Norbert

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