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[bug-gnu-libiconv] Re: Creating Locale [Help Needed]

From: Bruno Haible
Subject: [bug-gnu-libiconv] Re: Creating Locale [Help Needed]
Date: Thu, 6 Nov 2008 14:45:46 +0100
User-agent: KMail/1.9.1

Abhirav Kushwaha wrote:
> I need to convert a Japanese file to UTF-8  that is encoded in
> 'iso-2022-jp'(JIS) format but my environment does not have the locale for
> JIS. So, I cannot use 'iconv' to convert the file.

Note that when people say that a file is in ISO-2022-JP, most often they
mean ISO-2022-JP-2 (because ISO-2022-JP is not usable for Japanese: it
does not even contain the Katakana and Hiragana characters).

Also note that 'iconv' has command-line options for controlling conversion
problems. Option -c discards unconvertible characters, and GNU libiconv's
iconv program also has options --unicode-subst and --byte-subst that allow
to write the unconvertible characters in a failsafe form.

> I would be very greateful if you could just guide me where can I find the
> JIS charmap, 'Japanese locale source for JIS' and 'JIS to Unicode' mapping
> file so that I can use localedef to create locale and then use iconv to
> convert the file to UTF-8.
> I searched a lot on internet but could not get the right information about
> how to create locale.

There are no locales in ISO-2022-* encodings, because these encodings are
stateful. The closest you can get is a terminal emulator (like 'xterm'
with 'luit') that accepts ISO-2022-JP-2 encoded input and converts it on
the fly to EUC-JP or UTF-8. But that's only a makeshift. Your best choice
is UTF-8 all the way.


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