WordPress/wp-includes/l10n.php

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<?php
/**
* WordPress Translation API
*
* @package WordPress
* @subpackage i18n
*/
/**
* get_locale() - Gets the current locale
*
* If the locale is set, then it will filter the locale
* in the 'locale' filter hook and return the value.
*
* If the locale is not set already, then the WPLANG
* constant is used if it is defined. Then it is filtered
* through the 'locale' filter hook and the value for the
* locale global set and the locale is returned.
*
* The process to get the locale should only be done once
* but the locale will always be filtered using the
* 'locale' hook.
*
* @since 1.5.0
* @uses apply_filters() Calls 'locale' hook on locale value
* @uses $locale Gets the locale stored in the global
*
* @return string The locale of the blog or from the 'locale' hook
*/
function get_locale() {
global $locale;
if (isset($locale))
return apply_filters( 'locale', $locale );
// WPLANG is defined in wp-config.
if (defined('WPLANG'))
$locale = WPLANG;
if (empty($locale))
$locale = 'en_US';
$locale = apply_filters('locale', $locale);
return $locale;
}
/**
* translate() - Retrieve the translated text
*
* If the domain is set in the $l10n global, then the text is run
* through the domain's translate method. After it is passed to
* the 'gettext' filter hook, along with the untranslated text as
* the second parameter.
*
* If the domain is not set, the $text is just returned.
*
* @since 2.2.0
* @uses $l10n Gets list of domain translated string (gettext_reader) objects
* @uses apply_filters() Calls 'gettext' on domain translated text
* with the untranslated text as second parameter
*
* @param string $text Text to translate
* @param string $domain Domain to retrieve the translated text
* @return string Translated text
*/
function translate($text, $domain = 'default') {
global $l10n;
if (isset($l10n[$domain]))
return apply_filters('gettext', $l10n[$domain]->translate($text), $text);
else
return $text;
}
/**
* translate_with_context() - Retrieve the translated text and strip context
*
* If the domain is set in the $l10n global, then the text is run
* through the domain's translate method. After it is passed to
* the 'gettext' filter hook, along with the untranslated text as
* the second parameter.
*
* If the domain is not set, the $text is just returned.
*
* @since 2.5
* @uses translate()
*
* @param string $text Text to translate
* @param string $domain Domain to retrieve the translated text
* @return string Translated text
*/
function translate_with_context($text, $domain = 'default') {
$whole = translate($text, $domain);
$last_bar = strrpos($whole, '|');
if ( false == $last_bar ) {
return $whole;
} else {
return substr($whole, 0, $last_bar);
}
}
/**
* __() - Retrieve a translated string
*
* __() is a convenience function which retrieves the translated
* string from the translate().
*
* @see translate() An alias of translate()
* @since 2.1.0
*
* @param string $text Text to translate
* @param string $domain Optional. Domain to retrieve the translated text
* @return string Translated text
*/
function __($text, $domain = 'default') {
return translate($text, $domain);
}
// .
/**
* _e() - Display a translated string
*
* _e() is a convenience function which displays the returned
* translated text from translate().
*
* @see translate() Echos returned translate() string
* @since 1.2.0
*
* @param string $text Text to translate
* @param string $domain Optional. Domain to retrieve the translated text
*/
function _e($text, $domain = 'default') {
echo translate($text, $domain);
}
/**
* _c() - Retrieve context translated string
*
* Quite a few times, there will be collisions with similar
* translatable text found in more than two places but with
* different translated context.
*
* In order to use the separate contexts, the _c() function
* is used and the translatable string uses a pipe ('|')
* which has the context the string is in.
*
* When the translated string is returned, it is everything
* before the pipe, not including the pipe character. If
* there is no pipe in the translated text then everything
* is returned.
*
* @since 2.2.0
*
* @param string $text Text to translate
* @param string $domain Optional. Domain to retrieve the translated text
* @return string Translated context string without pipe
*/
function _c($text, $domain = 'default') {
return translate_with_context($text, $domain);
}
/**
* __ngettext() - Retrieve the plural or single form based on the amount
*
* If the domain is not set in the $l10n list, then a comparsion
* will be made and either $plural or $single parameters returned.
*
* If the domain does exist, then the parameters $single, $plural,
* and $number will first be passed to the domain's ngettext method.
* Then it will be passed to the 'ngettext' filter hook along with
* the same parameters. The expected type will be a string.
*
* @since 1.2.0
* @uses $l10n Gets list of domain translated string (gettext_reader) objects
* @uses apply_filters() Calls 'ngettext' hook on domains text returned,
* along with $single, $plural, and $number parameters. Expected to return string.
*
* @param string $single The text that will be used if $number is 1
* @param string $plural The text that will be used if $number is not 1
* @param int $number The number to compare against to use either $single or $plural
* @param string $domain Optional. The domain identifier the text should be retrieved in
* @return string Either $single or $plural translated text
*/
function __ngettext($single, $plural, $number, $domain = 'default') {
global $l10n;
if (isset($l10n[$domain])) {
return apply_filters('ngettext', $l10n[$domain]->ngettext($single, $plural, $number), $single, $plural, $number);
} else {
if ($number != 1)
return $plural;
else
return $single;
}
}
/**
* __ngettext_noop() - register plural strings in POT file, but don't translate them
*
* Used when you want do keep structures with translatable plural strings and
* use them later.
*
* Example:
* $messages = array(
* 'post' => ngettext_noop('%s post', '%s posts'),
* 'page' => ngettext_noop('%s pages', '%s pages')
* );
* ...
* $message = $messages[$type];
* $usable_text = sprintf(__ngettext($message[0], $message[1], $count), $count);
*
* @since 2.5
* @param $single Single form to be i18ned
* @param $plural Plural form to be i18ned
* @param $number Not used, here for compatibility with __ngettext, optional
* @param $domain Not used, here for compatibility with __ngettext, optional
* @return array array($single, $plural)
*/
function __ngettext_noop($single, $plural, $number=1, $domain = 'default') {
return array($single, $plural);
}
/**
* load_textdomain() - Loads MO file into the list of domains
*
* If the domain already exists, the inclusion will fail. If the
* MO file is not readable, the inclusion will fail.
*
* On success, the mofile will be placed in the $l10n global by
* $domain and will be an gettext_reader object.
*
* @since 1.5.0
* @uses $l10n Gets list of domain translated string (gettext_reader) objects
* @uses CacheFileReader Reads the MO file
* @uses gettext_reader Allows for retrieving translated strings
*
* @param string $domain Unique identifier for retrieving translated strings
* @param string $mofile Path to the .mo file
* @return null On failure returns null and also on success returns nothing.
*/
function load_textdomain($domain, $mofile) {
global $l10n;
if (isset($l10n[$domain]))
return;
if ( is_readable($mofile))
$input = new CachedFileReader($mofile);
else
return;
$l10n[$domain] = new gettext_reader($input);
}
/**
* load_default_textdomain() - Loads default translated strings based on locale
*
* Loads the .mo file in LANGDIR constant path from WordPress root.
* The translated (.mo) file is named based off of the locale.
*
* @since 1.5.0
*/
function load_default_textdomain() {
$locale = get_locale();
$mofile = ABSPATH . LANGDIR . "/$locale.mo";
load_textdomain('default', $mofile);
}
/**
* load_plugin_textdomain() - Loads the plugin's translated strings
*
* If the path is not given then it will be the root of the plugin
* directory. The .mo file should be named based on the domain with a
* dash followed by a dash, and then the locale exactly.
*
* The plugin may place all of the .mo files in another folder and set
* the $path based on the relative location from ABSPATH constant. The
* plugin may use the constant WP_PLUGIN_DIR and/or plugin_basename() to
* get path of the plugin and then add the folder which holds the .mo
* files.
*
* @since 1.5.0
*
* @param string $domain Unique identifier for retrieving translated strings
* @param string $path Optional. Path of the folder where the .mo files reside.
*/
function load_plugin_textdomain($domain, $path = false) {
$locale = get_locale();
if ( false === $path )
$path = '';
else
$path = '/' . trim(trim($path), '/');
$mofile = WP_PLUGIN_DIR . $path . '/'. $domain . '-' . $locale . '.mo';
load_textdomain($domain, $mofile);
}
/**
* load_theme_textdomain() - Includes theme's translated strings for the theme
*
* If the current locale exists as a .mo file in the theme's root directory, it
* will be included in the translated strings by the $domain.
*
* The .mo files must be named based on the locale exactly.
*
* @since 1.5.0
*
* @param string $domain Unique identifier for retrieving translated strings
*/
function load_theme_textdomain($domain) {
$locale = get_locale();
$mofile = get_template_directory() . "/$locale.mo";
load_textdomain($domain, $mofile);
}
?>