[Patch] Fix wide char locale support(like CJK charset) in regex

[Tim Shen]

The bug is because naively calling `map<char, value_type>::count(__c)`
where __c could be a wchar_t, and an implicit cast(a truncate?)
happened.

-m32 and -m64 tested.

Thanks!


-- 
Tim Shen

a.patch
Description: Binary data