libc: code set of setlocale() and nl_langinfo()

[KO Myung-Hun]

Hi/2.

Currently, setlocale(LC_xxx, "") and nl_langinfo(CODESET) return ISO8859-1 for a codeset of ko_KR when the codeset is not specified in LC_xxx or LANG env. var.

But this is not correct.

It should be EUC-KR, IBM-949, or CP949.

I think, this is true for other DBCS locale.

How about using CPxxx for a codeset when it is not specified in LC_xxx or LANG env. var. ?

I prefer CPxxx to IBM-xxx, because it can be used with GNU libraries such as libiconv.

[bird]

The ISO8859-1 is the default code set of the locale according to the IBM locale API. So, if you want to make sure you're using the right code set, I would suggest trying to change LC_xxx / LANG to ko_KR.IBM949 (or whatever most apps will understand).

Hmm.... It's actually tempting to just use the process code page when LC_xxx / LANG does not specify any code set. This would help for #227 as well. I'll see how much work this is and try get it into the next bug fix release.

[bird]

r3788 make setlocale default to the process code page when no codeset is given in the locale specification. (Very easy change as there was already code for doing exactly this.)