lfs-book/chapter06/gettext.xml

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<sect1 id="ch-system-gettext" xreflabel="Gettext">
<title>Gettext-&gettext-version;</title>
<?dbhtml filename="gettext.html"?>

<indexterm zone="ch-system-gettext"><primary sortas="a-Gettext">Gettext</primary></indexterm>

<para>The Gettext package contains utilities for internationalization and
localization. These allow programs to be compiled with Native Language Support
(NLS), enabling them to output messages in the user's native language.</para>

<screen>&buildtime; 0.5 SBU
&diskspace; 55 MB</screen>

<para>Gettext installation depends on: Bash, Binutils, Bison, Coreutils,
Diffutils, Gawk, GCC, Glibc, Grep, Make, Sed.</para>



<sect2>
<title>Installation of Gettext</title>

<para>Prepare Gettext for compilation:</para>

<screen><userinput>./configure --prefix=/usr</userinput></screen>

<para>Compile the package:</para>

<screen><userinput>make</userinput></screen>

<para>To test the results, issue:
<userinput>make check</userinput>. This takes a very long time, around
7 SBUs.</para>

<para>Now install the package:</para>

<screen><userinput>make install</userinput></screen>

</sect2>


<sect2 id="contents-gettext"><title>Contents of Gettext</title>

<para><emphasis>Installed programs</emphasis>: autopoint, config.charset,
config.rpath, envsubst, gettext, gettextize, hostname, msgattrib, msgcat,
msgcmp, msgcomm, msgconv, msgen, msgexec, msgfilter, msgfmt, msggrep, msginit,
msgmerge, msgunfmt, msguniq, ngettext, project-id, team-address, trigger,
urlget, user-email and xgettext</para>

<para><emphasis>Installed libraries</emphasis>: libasprintf[a,so],
libgettextlib[a,so], libgettextpo[a,so] and libgettextsrc[a,so]</para>

</sect2>

<sect2><title>Short descriptions</title>

<indexterm zone="ch-system-gettext autopoint"><primary sortas="b-autopoint">autopoint</primary></indexterm>
<para id="autopoint"><command>autopoint</command> copies standard gettext infrastructure
files into a source package.</para>

<indexterm zone="ch-system-gettext config.charset"><primary sortas="b-config.charset">config.charset</primary></indexterm>
<para id="config.charset"><command>config.charset</command> outputs a system-dependent table of
character encoding aliases.</para>

<indexterm zone="ch-system-gettext config.rpath"><primary sortas="b-config.rpath">config.rpath</primary></indexterm>
<para id="config.rpath"><command>config.rpath</command> outputs a system-dependent set of
variables, describing how to set the runtime search path of shared libraries in an
executable.</para>

<indexterm zone="ch-system-gettext envsubst"><primary sortas="b-envsubst">envsubst</primary></indexterm>
<para id="envsubst"><command>envsubst</command> substitutes environment variables in shell
format strings.</para>

<indexterm zone="ch-system-gettext gettext"><primary sortas="b-gettext">gettext</primary></indexterm>
<para id="gettext"><command>gettext</command> translates a natural language message into
the user's language, by looking up the translation in a message catalog.</para>

<indexterm zone="ch-system-gettext gettextize"><primary sortas="b-gettextize">gettextize</primary></indexterm>
<para id="gettextize"><command>gettextize</command> copies all standard Gettext files into
the given top-level directory of a package, to begin inter-nationalizing it.</para>

<indexterm zone="ch-system-gettext hostname-gettext"><primary sortas="b-hostname-gettext">hostname</primary></indexterm>
<para id="hostname-gettext"><command>hostname</command> displays a network hostname in various
forms.</para>

<indexterm zone="ch-system-gettext msgattrib"><primary sortas="b-msgattrib">msgattrib</primary></indexterm>
<para id="msgattrib"><command>msgattrib</command> filters the messages of a translation
catalog according to their attributes and manipulates the attributes.</para>

<indexterm zone="ch-system-gettext msgcat"><primary sortas="b-msgcat">msgcat</primary></indexterm>
<para id="msgcat"><command>msgcat</command> concatenates and merges the given
<filename>.po</filename> files.</para>

<indexterm zone="ch-system-gettext msgcmp"><primary sortas="b-msgcmp">msgcmp</primary></indexterm>
<para id="msgcmp"><command>msgcmp</command> compares two <filename>.po</filename>
files to check that both contain the same set of msgid strings.</para>

<indexterm zone="ch-system-gettext msgcomm"><primary sortas="b-msgcomm">msgcomm</primary></indexterm>
<para id="msgcomm"><command>msgcomm</command> finds the messages that are common to
to the given <filename>.po</filename> files.</para>

<indexterm zone="ch-system-gettext msgconv"><primary sortas="b-msgconv">msgconv</primary></indexterm>
<para id="msgconv"><command>msgconv</command> converts a translation catalog to a
different character encoding.</para>

<indexterm zone="ch-system-gettext msgen"><primary sortas="b-msgen">msgen</primary></indexterm>
<para id="msgen"><command>msgen</command> creates an English translation catalog.</para>

<indexterm zone="ch-system-gettext msgexec"><primary sortas="b-msgexec">msgexec</primary></indexterm>
<para id="msgexec"><command>msgexec</command> applies a command to all translations of a
translation catalog.</para>

<indexterm zone="ch-system-gettext msgfilter"><primary sortas="b-msgfilter">msgfilter</primary></indexterm>
<para id="msgfilter"><command>msgfilter</command> applies a filter to all translations of a
translation catalog.</para>

<indexterm zone="ch-system-gettext msgfmt"><primary sortas="b-msgfmt">msgfmt</primary></indexterm>
<para id="msgfmt"><command>msgfmt</command> generates a binary message catalog from
from a translation catalog.</para>

<indexterm zone="ch-system-gettext msggrep"><primary sortas="b-msggrep">msggrep</primary></indexterm>
<para id="msggrep"><command>msggrep</command> extracts all messages of a translation
catalog that match a given pattern or belong to some given source files.</para>

<indexterm zone="ch-system-gettext msginit"><primary sortas="b-msginit">msginit</primary></indexterm>
<para id="msginit"><command>msginit</command> creates a new <filename>.po</filename>
file, initializing the meta information with values from the user's
environment.</para>

<indexterm zone="ch-system-gettext msgmerge"><primary sortas="b-msgmerge">msgmerge</primary></indexterm>
<para id="msgmerge"><command>msgmerge</command> combines two raw translations into a
single file.</para>

<indexterm zone="ch-system-gettext msgunfmt"><primary sortas="b-msgunfmt">msgunfmt</primary></indexterm>
<para id="msgunfmt"><command>msgunfmt</command> decompiles a binary message catalog
into raw translation text.</para>

<indexterm zone="ch-system-gettext msguniq"><primary sortas="b-msguniq">msguniq</primary></indexterm>
<para id="msguniq"><command>msguniq</command> unifies duplicate translations in a
translation catalog.</para>

<indexterm zone="ch-system-gettext ngettext"><primary sortas="b-ngettext">ngettext</primary></indexterm>
<para id="ngettext"><command>ngettext</command> displays native language translations of a
textual message whose grammatical form depends on a number.</para>

<indexterm zone="ch-system-gettext xgettext"><primary sortas="b-xgettext">xgettext</primary></indexterm>
<para id="xgettext"><command>xgettext</command> extracts the translatable message lines
from the given source files, to make the first translation template.</para>

<indexterm zone="ch-system-gettext libasprintf"><primary sortas="c-libasprintf">libasprintf</primary></indexterm>
<para id="libasprintf"><command>libasprintf</command> defines the autosprintf class, which
makes C formatted output routines usable in C++ programs, for use with the
&lt;string&gt; strings and the &lt;iostream&gt; streams.</para>

<indexterm zone="ch-system-gettext libgettextlib"><primary sortas="c-libgettextlib">libgettextlib</primary></indexterm>
<para id="libgettextlib"><command>libgettextlib</command> is a private library containing
common routines used by the various gettext programs. They're not meant for
general use.</para>

<indexterm zone="ch-system-gettext libgettextpo"><primary sortas="c-libgettextpo">libgettextpo</primary></indexterm>
<para id="libgettextpo"><command>libgettextpo</command> is used to write specialized
programs that process PO files. This library is used when the standard
applications shipped with gettext won't suffice (such as msgcomm, msgcmp,
msgattrib and msgen).</para>

<indexterm zone="ch-system-gettext libgettextsrc"><primary sortas="c-libgettextsrc">libgettextsrc</primary></indexterm>
<para id="libgettextsrc"><command>libgettextsrc</command> is a private library containing
common routines used by the various gettext programs. They're not meant for
general use.</para>

</sect2>



</sect1>