Re: [GENERAL] trouble with to_char('L')

Magnus Hagander <magnus@hagander.net> wrote:

> But I'm unsure how that would work. We're talking about the output of
> localeconv(), right? I don't see a version of localeconv() that does
> wide chars anywhere. (You can't just set LC_CTYPE and use the regular
> function - Windows has a separate set of functions for dealing with
> UTF16).

Yeah, msvcrt doesn't have wlocaleconv :-( . Since localeconv() returns
characters in the encoding specified in LC_TYPE, we need to hande the
issue with codes something like:

    1. setlocale(LC_CTYPE, lc_monetary)
    2. setlocale(LC_MONETARY, lc_monetary)
    3. lc = localeconv()
    4. pg_do_encoding_conversion(lc->xxx,
          FROM pg_get_encoding_from_locale(lc_monetary),
          TO GetDatabaseEncoding())
    5. Revert LC_CTYPE and LC_MONETARY.


Another idea is to use GetLocaleInfoW() [1], that is win32 native locale
functions, instead of the libc one. It returns locale characters in wide
chars, so we can safely convert them as UTF16->UTF8->db. But it requires
an additional branch in our locale codes only for Windows.

[1] http://msdn.microsoft.com/en-us/library/dd318101

Regards,
---
Takahiro Itagaki
NTT Open Source Software Center