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<?xml version="1.0" encoding="utf-8"?>
<!--
The FreeBSD Documentation Project
$FreeBSD$
-->
<chapter xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0" xml:id="l10n">
<title>Localization and Internationalization - L10N and I18N</title>
<sect1 xml:id="l10n-programming">
<title>Programming I18N Compliant Applications</title>
<indexterm><primary>Qt</primary></indexterm>
<indexterm><primary>GTK</primary></indexterm>
<para>To make your application more useful for speakers of other
languages, we hope that you will program I18N compliant. The GNU
gcc compiler and GUI libraries like QT and GTK support I18N through
special handling of strings. Making a program I18N compliant is
very easy. It allows contributors to port your application to
other languages quickly. Refer to the library specific I18N
documentation for more details.</para>
<para>In contrast with common perception, I18N compliant code is
easy to write. Usually, it only involves wrapping your strings
with library specific functions. In addition, please be sure to
allow for wide or multibyte character support.</para>
<sect2>
<title>A Call to Unify the I18N Effort</title>
<para>It has come to our attention that the individual I18N/L10N
efforts for each country has been repeating each others'
efforts. Many of us have been reinventing the wheel repeatedly
and inefficiently. We hope that the various major groups in
I18N could congregate into a group effort similar to the Core
Team's responsibility.</para>
<para>Currently, we hope that, when you write or port I18N
programs, you would send it out to each country's related
FreeBSD mailing list for testing. In the future, we hope to
create applications that work in all the languages
out-of-the-box without dirty hacks.</para>
<para>The &a.i18n; has been established. If you are an I18N/L10N
developer, please send your comments, ideas, questions, and
anything you deem related to it.</para>
</sect2>
<sect2>
<title>Perl and Python</title>
<indexterm>
<primary>Perl</primary>
</indexterm>
<indexterm>
<primary>Python</primary>
</indexterm>
<para>Perl and Python have I18N and wide character handling
libraries. Please use them for I18N compliance.</para>
<para>In older FreeBSD versions,
Perl may give warnings about not having a wide character locale
installed on your system. You can set the
environment variable <envar>LD_PRELOAD</envar> to
<filename>/usr/lib/libxpg4.so</filename> in your shell.</para>
<para>In <literal>sh</literal>-based shells:</para>
<programlisting><envar>LD_PRELOAD=/usr/lib/libxpg4.so</envar></programlisting>
<para>In <literal>C</literal>-based shells:</para>
<programlisting><envar>setenv LD_PRELOAD /usr/lib/libxpg4.so</envar></programlisting>
</sect2>
</sect1>
</chapter>
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