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<title>GETTEXT</title>
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<h1 align="center">GETTEXT</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#RETURN VALUE">RETURN VALUE</a><br>
<a href="#ERRORS">ERRORS</a><br>
<a href="#BUGS">BUGS</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
<hr>
<h2>NAME
<a name="NAME"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">gettext,
dgettext, dcgettext − translate message</p>
<h2>SYNOPSIS
<a name="SYNOPSIS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>#include
<libintl.h></b></p>
<p style="margin-left:11%; margin-top: 1em"><b>char *
gettext (const char *</b> <i>msgid</i><b>); <br>
char * dgettext (const char *</b> <i>domainname</i><b>,
const char *</b> <i>msgid</i><b>); <br>
char * dcgettext (const char *</b> <i>domainname</i><b>,
const char *</b> <i>msgid</i><b>, <br>
int</b> <i>category</i><b>);</b></p>
<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The
<b>gettext</b>, <b>dgettext</b> and <b>dcgettext</b>
functions attempt to translate a text string into the
user’s native language, by looking up the translation
in a message catalog.</p>
<p style="margin-left:11%; margin-top: 1em">The
<i>msgid</i> argument identifies the message to be
translated. By convention, it is the English version of the
message, with non-ASCII characters replaced by ASCII
approximations. This choice allows the translators to work
with message catalogs, called PO files, that contain both
the English and the translated versions of each message, and
can be installed using the <b>msgfmt</b> utility.</p>
<p style="margin-left:11%; margin-top: 1em">A message
domain is a set of translatable <i>msgid</i> messages.
Usually, every software package has its own message domain.
The domain name is used to determine the message catalog
where the translation is looked up; it must be a non-empty
string. For the <b>gettext</b> function, it is specified
through a preceding <b>textdomain</b> call. For the
<b>dgettext</b> and <b>dcgettext</b> functions, it is passed
as the <i>domainname</i> argument; if this argument is NULL,
the domain name specified through a preceding
<b>textdomain</b> call is used instead.</p>
<p style="margin-left:11%; margin-top: 1em">Translation
lookup operates in the context of the current locale. For
the <b>gettext</b> and <b>dgettext</b> functions, the
<b>LC_MESSAGES</b> locale facet is used. It is determined by
a preceding call to the <b>setlocale</b> function.
<b>setlocale(LC_ALL,"")</b> initializes the
<b>LC_MESSAGES</b> locale based on the first nonempty value
of the three environment variables <b>LC_ALL</b>,
<b>LC_MESSAGES</b>, <b>LANG</b>; see <b>setlocale</b>(3).
For the <b>dcgettext</b> function, the locale facet is
determined by the <i>category</i> argument, which should be
one of the <b>LC_xxx</b> constants defined in the
<locale.h> header, excluding <b>LC_ALL</b>. In both
cases, the functions also use the <b>LC_CTYPE</b> locale
facet in order to convert the translated message from the
translator’s codeset to the current locale’s
codeset, unless overridden by a prior call to the
<b>bind_textdomain_codeset</b> function.</p>
<p style="margin-left:11%; margin-top: 1em">The message
catalog used by the functions is at the pathname
<i>dirname</i>/<i>locale</i>/<i>category</i>/<i>domainname</i>.mo.
Here <i>dirname</i> is the directory specified through
<b>bindtextdomain</b>. Its default is system and
configuration dependent; typically it is
<i>prefix</i>/share/locale, where <i>prefix</i> is the
installation prefix of the package. <i>locale</i> is the
name of the current locale facet; the GNU implementation
also tries generalizations, such as the language name
without the territory name. <i>category</i> is
<b>LC_MESSAGES</b> for the <b>gettext</b> and
<b>dgettext</b> functions, or the argument passed to the
<b>dcgettext</b> function.</p>
<p style="margin-left:11%; margin-top: 1em">If the
<b>LANGUAGE</b> environment variable is set to a nonempty
value, and the locale is not the "C" locale, the
value of <b>LANGUAGE</b> is assumed to contain a colon
separated list of locale names. The functions will attempt
to look up a translation of <i>msgid</i> in each of the
locales in turn. This is a GNU extension.</p>
<p style="margin-left:11%; margin-top: 1em">In the
"C" locale, or if none of the used catalogs
contain a translation for <i>msgid</i>, the <b>gettext</b>,
<b>dgettext</b> and <b>dcgettext</b> functions return
<i>msgid</i>.</p>
<h2>RETURN VALUE
<a name="RETURN VALUE"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">If a
translation was found in one of the specified catalogs, it
is converted to the locale’s codeset and returned. The
resulting string is statically allocated and must not be
modified or freed. Otherwise <i>msgid</i> is returned.</p>
<h2>ERRORS
<a name="ERRORS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>errno</b> is
not modified.</p>
<h2>BUGS
<a name="BUGS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The return type
ought to be <b>const char *</b>, but is <b>char *</b> to
avoid warnings in C code predating ANSI C.</p>
<p style="margin-left:11%; margin-top: 1em">When an empty
string is used for <i>msgid</i>, the functions may return a
nonempty string.</p>
<h2>SEE ALSO
<a name="SEE ALSO"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>ngettext</b>(3),
<b>dngettext</b>(3), <b>dcngettext</b>(3),
<b>setlocale</b>(3), <b>textdomain</b>(3),
<b>bindtextdomain</b>(3), <b>bind_textdomain_codeset</b>(3),
<b>msgfmt</b>(1)</p>
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