103 lines
4.5 KiB
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103 lines
4.5 KiB
HTML
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<TITLE>The Linux Danish/International HOWTO: Locale support in libc 5.4.x and higher</TITLE>
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<H2><A NAME="locale"></A> <A NAME="s5">5. Locale support in libc 5.4.x and higher</A><!--Danish!locale support--></H2>
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<P>The locale support has been updated in <CODE>libc 5.4.x</CODE>. You can avoid many of
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the individual program setups described in section
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<A HREF="Danish-HOWTO-3.html#apps">International character sets in specific applications</A> if the programs
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on your system is prepared for locale support. The Debian distribution comes
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with this support if you install the <CODE>wg15-locale</CODE> package. Systems with
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<CODE>GNU libc 2</CODE> (<CODE>libc 6.x</CODE>) support locales by default (see remarks about
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Red Hat Linux release 5.0 later in this section.)
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<P>If you use a system without locale support, you can add such support using the
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following method:
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<OL>
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<LI>Make sure you have the latest <CODE>libc 5.4.x</CODE> library. You can get this
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from
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<A HREF="ftp://ftp.yggdrasil.com/private/hjl/">Yggdrasil Computing</A>.</LI>
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<LI>Make sure you have the <CODE>localedef</CODE> program installed. It should come
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with the library.</LI>
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<LI>Get the locale sources. You can get them from DKUUG. You need to get
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both
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<A HREF="ftp://dkuug.dk/i18n/WG15-collection/locales/">locale</A>
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and
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<A HREF="ftp://dkuug.dk/i18n/WG15-collection/charmaps/">charmap</A>
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sources.</LI>
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<LI>Put the locale sources in <CODE>/usr/share/i18n/locales/</CODE> and the
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charmap sources in <CODE>/usr/share/i18n/charmaps/</CODE>.</LI>
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<LI>Execute the <CODE>localedef</CODE> program to build the locale data files:
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<PRE>
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localedef -ci da_DK -f ISO_8859-1:1987 da_DK
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</PRE>
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(Note for non-Danish readers: You can build locale data files for other locales
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in the same way. All locale and charmap sources are at the DKUUG site.)</LI>
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</OL>
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<P>To enable support for the Danish locale on a system with locale support you
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just have to set one of the following environment variables:
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<PRE>
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LANG=da_DK
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</PRE>
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or
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<PRE>
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LC_ALL=da_DK
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</PRE>
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<P>Try <CODE>da_DK.ISO_8859-1</CODE> if <CODE>da_DK</CODE> does not work.
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<P>Both environment variables set all the individual locale catgories. You can
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also set a single locale category by using the name of the category as an
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environment variable. The locale catogories are:
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<PRE>
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Locale category Application
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--------------- -----------
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LC_COLLATE Collation of strings (sort order.)
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LC_CTYPE Classification and conversion of characters.
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LC_MESSAGES Translations of yes and no.
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LC_MONETARY Format of monetary values.
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LC_NUMERIC Format of non-monetary numeric values.
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LC_TIME Date and time formats.
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LC_ALL Sets all of the above (overrides all of them.)
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LANG Sets all the categories, but can be overridden
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by the individual locale categories.
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</PRE>
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<P>In Red Hat Linux 5.2 you can set the environment variables LANG and/or
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LC_ALL in the file <CODE>/etc/sysconfig/i18n</CODE> by adding lines such as
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this:
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<PRE>
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LC_ALL=da_DK
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</PRE>
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<P>A few programs such as <CODE>bash</CODE> and <CODE>GNU emacs</CODE> still need specific
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setup as described in section
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<A HREF="Danish-HOWTO-3.html#apps">International character sets in specific applications</A>, but most
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should work without further attention. Programs such as <CODE>nvi</CODE> which
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did not work with 8 bit characters before should work now.
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<P>Locale support should be more common as distributions based on the new
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<CODE>GNU libc 2</CODE> become available. Beware that although Red Hat Linux release
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5.0 comes with <CODE>GNU libc 2</CODE>, the locale support is not working. You have to
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build the locale data files by executing <CODE>localedef</CODE> yourself. You can build
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the Danish locale data files with the following command:
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<PRE>
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localedef -c -i da_DK -f ISO-8859-1 da_DK
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</PRE>
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<P>As of <CODE>glibc-2.0.7-4.i386.rpm</CODE> the locale data files are included with the
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libraries and this is no longer necessary.
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<P>
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<HR>
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<A HREF="Danish-HOWTO-6.html">Next</A>
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<A HREF="Danish-HOWTO.html#toc5">Contents</A>
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