| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Teodor Sigaev <teodor(at)sigaev(dot)ru> |
| Cc: | Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: regular expressions stranges |
| Date: | 2007-01-23 15:27:00 |
| Message-ID: | 18916.1169566020@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Teodor Sigaev <teodor(at)sigaev(dot)ru> writes:
>> The regex code is working with pg_wchar strings, which aren't
>> necessarily the same representation that the OS' wide-char functions
>> expect. If we could guarantee compatibility then the above plan
>> would make sense ...
> it seems to me, that is possible for UTF8 encoding.
Why? The one thing that a wchar certainly is not is UTF8.
It might be that the <wctype.h> functions are expecting UTF16 or UTF32,
but we don't know which, and really we can hardly even be sure they're
expecting Unicode at all.
regards, tom lane
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