On 14 Feb 2012, at 18:28, Tom Lane wrote:
> 
> Oh, I see the reason for this: the code in cclass() in regc_locale.c
> doesn't go further up than U+00FF, so no codes above that will be
> thought to be letters (or members of any other character class).
> Clearly we need to go further when we are dealing with UTF8.
> I'm not sure what a sane limit would be though.

The Basic Multilingual Plane goes up to FFFF:

https://en.wikipedia.org/wiki/Mapping_of_Unicode_characters#Planes

In response to

• Re: BUG #6457: Regexp not processing word (with special characters on ends) correctly (UTF-8) at 2012-02-14 18:28:11 from Tom Lane

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