<?php /** * Core Translation API * * @package WordPress * @subpackage i18n * @since 1.2.0 */ /** * Retrieves the current locale. * * If the locale is set, then it will filter the locale in the {@see '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 {@see '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 {@see 'locale'} hook. * * @since 1.5.0 * * @global string $locale The current locale. * @global string $wp_local_package Locale code of the package. * * @return string The locale of the blog or from the {@see 'locale'} hook. */ function get_locale() { global $locale, $wp_local_package; if ( isset( $locale ) ) { /** This filter is documented in wp-includes/l10n.php */ return apply_filters( 'locale', $locale ); } if ( isset( $wp_local_package ) ) { $locale = $wp_local_package; } // WPLANG was defined in wp-config. if ( defined( 'WPLANG' ) ) { $locale = WPLANG; } // If multisite, check options. if ( is_multisite() ) { // Don't check blog option when installing. if ( wp_installing() ) { $ms_locale = get_site_option( 'WPLANG' ); } else { $ms_locale = get_option( 'WPLANG' ); if ( false === $ms_locale ) { $ms_locale = get_site_option( 'WPLANG' ); } } if ( false !== $ms_locale ) { $locale = $ms_locale; } } else { $db_locale = get_option( 'WPLANG' ); if ( false !== $db_locale ) { $locale = $db_locale; } } if ( empty( $locale ) ) { $locale = 'en_US'; } /** * Filters the locale ID of the WordPress installation. * * @since 1.5.0 * * @param string $locale The locale ID. */ return apply_filters( 'locale', $locale ); } /** * Retrieves the locale of a user. * * If the user has a locale set to a non-empty string then it will be * returned. Otherwise it returns the locale of get_locale(). * * @since 4.7.0 * * @param int|WP_User $user_id User's ID or a WP_User object. Defaults to current user. * @return string The locale of the user. */ function get_user_locale( $user_id = 0 ) { $user = false; if ( 0 === $user_id && function_exists( 'wp_get_current_user' ) ) { $user = wp_get_current_user(); } elseif ( $user_id instanceof WP_User ) { $user = $user_id; } elseif ( $user_id && is_numeric( $user_id ) ) { $user = get_user_by( 'id', $user_id ); } if ( ! $user ) { return get_locale(); } $locale = $user->locale; return $locale ? $locale : get_locale(); } /** * Determine the current locale desired for the request. * * @since 5.0.0 * * @global string $pagenow * * @return string The determined locale. */ function determine_locale() { /** * Filters the locale for the current request prior to the default determination process. * * Using this filter allows to override the default logic, effectively short-circuiting the function. * * @since 5.0.0 * * @param string|null $locale The locale to return and short-circuit. Default null. */ $determined_locale = apply_filters( 'pre_determine_locale', null ); if ( ! empty( $determined_locale ) && is_string( $determined_locale ) ) { return $determined_locale; } $determined_locale = get_locale(); if ( is_admin() ) { $determined_locale = get_user_locale(); } if ( isset( $_GET['_locale'] ) && 'user' === $_GET['_locale'] && wp_is_json_request() ) { $determined_locale = get_user_locale(); } if ( ! empty( $_GET['wp_lang'] ) && ! empty( $GLOBALS['pagenow'] ) && 'wp-login.php' === $GLOBALS['pagenow'] ) { $determined_locale = sanitize_text_field( $_GET['wp_lang'] ); } /** * Filters the locale for the current request. * * @since 5.0.0 * * @param string $locale The locale. */ return apply_filters( 'determine_locale', $determined_locale ); } /** * Retrieve the translation of $text. * * If there is no translation, or the text domain isn't loaded, the original text is returned. * * *Note:* Don't use translate() directly, use __() or related functions. * * @since 2.2.0 * @since 5.5.0 Introduced gettext-{$domain} filter. * * @param string $text Text to translate. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. * @return string Translated text. */ function translate( $text, $domain = 'default' ) { $translations = get_translations_for_domain( $domain ); $translation = $translations->translate( $text ); /** * Filters text with its translation. * * @since 2.0.11 * * @param string $translation Translated text. * @param string $text Text to translate. * @param string $domain Text domain. Unique identifier for retrieving translated strings. */ $translation = apply_filters( 'gettext', $translation, $text, $domain ); /** * Filters text with its translation for a domain. * * The dynamic portion of the hook, `$domain`, refers to the text domain. * * @since 5.5.0 * * @param string $translation Translated text. * @param string $text Text to translate. * @param string $domain Text domain. Unique identifier for retrieving translated strings. */ $translation = apply_filters( "gettext_{$domain}", $translation, $text, $domain ); return $translation; } /** * Remove last item on a pipe-delimited string. * * Meant for removing the last item in a string, such as 'Role name|User role'. The original * string will be returned if no pipe '|' characters are found in the string. * * @since 2.8.0 * * @param string $string A pipe-delimited string. * @return string Either $string or everything before the last pipe. */ function before_last_bar( $string ) { $last_bar = strrpos( $string, '|' ); if ( false === $last_bar ) { return $string; } else { return substr( $string, 0, $last_bar ); } } /** * Retrieve the translation of $text in the context defined in $context. * * If there is no translation, or the text domain isn't loaded, the original text is returned. * * *Note:* Don't use translate_with_gettext_context() directly, use _x() or related functions. * * @since 2.8.0 * @since 5.5.0 Introduced gettext_with_context-{$domain} filter. * * @param string $text Text to translate. * @param string $context Context information for the translators. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. * @return string Translated text on success, original text on failure. */ function translate_with_gettext_context( $text, $context, $domain = 'default' ) { $translations = get_translations_for_domain( $domain ); $translation = $translations->translate( $text, $context ); /** * Filters text with its translation based on context information. * * @since 2.8.0 * * @param string $translation Translated text. * @param string $text Text to translate. * @param string $context Context information for the translators. * @param string $domain Text domain. Unique identifier for retrieving translated strings. */ $translation = apply_filters( 'gettext_with_context', $translation, $text, $context, $domain ); /** * Filters text with its translation based on context information for a domain. * * The dynamic portion of the hook, `$domain`, refers to the text domain. * * @since 5.5.0 * * @param string $translation Translated text. * @param string $text Text to translate. * @param string $context Context information for the translators. * @param string $domain Text domain. Unique identifier for retrieving translated strings. */ $translation = apply_filters( "gettext_with_context_{$domain}", $translation, $text, $context, $domain ); return $translation; } /** * Retrieve the translation of $text. * * If there is no translation, or the text domain isn't loaded, the original text is returned. * * @since 2.1.0 * * @param string $text Text to translate. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. * @return string Translated text. */ function __( $text, $domain = 'default' ) { return translate( $text, $domain ); } /** * Retrieve the translation of $text and escapes it for safe use in an attribute. * * If there is no translation, or the text domain isn't loaded, the original text is returned. * * @since 2.8.0 * * @param string $text Text to translate. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. * @return string Translated text on success, original text on failure. */ function esc_attr__( $text, $domain = 'default' ) { return esc_attr( translate( $text, $domain ) ); } /** * Retrieve the translation of $text and escapes it for safe use in HTML output. * * If there is no translation, or the text domain isn't loaded, the original text * is escaped and returned. * * @since 2.8.0 * * @param string $text Text to translate. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. * @return string Translated text. */ function esc_html__( $text, $domain = 'default' ) { return esc_html( translate( $text, $domain ) ); } /** * Display translated text. * * @since 1.2.0 * * @param string $text Text to translate. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. */ function _e( $text, $domain = 'default' ) { echo translate( $text, $domain ); } /** * Display translated text that has been escaped for safe use in an attribute. * * Encodes `< > & " '` (less than, greater than, ampersand, double quote, single quote). * Will never double encode entities. * * If you need the value for use in PHP, use esc_attr__(). * * @since 2.8.0 * * @param string $text Text to translate. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. */ function esc_attr_e( $text, $domain = 'default' ) { echo esc_attr( translate( $text, $domain ) ); } /** * Display translated text that has been escaped for safe use in HTML output. * * If there is no translation, or the text domain isn't loaded, the original text * is escaped and displayed. * * If you need the value for use in PHP, use esc_html__(). * * @since 2.8.0 * * @param string $text Text to translate. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. */ function esc_html_e( $text, $domain = 'default' ) { echo esc_html( translate( $text, $domain ) ); } /** * Retrieve translated string with gettext context. * * Quite a few times, there will be collisions with similar translatable text * found in more than two places, but with different translated context. * * By including the context in the pot file, translators can translate the two * strings differently. * * @since 2.8.0 * * @param string $text Text to translate. * @param string $context Context information for the translators. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. * @return string Translated context string without pipe. */ function _x( $text, $context, $domain = 'default' ) { return translate_with_gettext_context( $text, $context, $domain ); } /** * Display translated string with gettext context. * * @since 3.0.0 * * @param string $text Text to translate. * @param string $context Context information for the translators. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. * @return string Translated context string without pipe. */ function _ex( $text, $context, $domain = 'default' ) { echo _x( $text, $context, $domain ); } /** * Translate string with gettext context, and escapes it for safe use in an attribute. * * If there is no translation, or the text domain isn't loaded, the original text * is escaped and returned. * * @since 2.8.0 * * @param string $text Text to translate. * @param string $context Context information for the translators. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. * @return string Translated text. */ function esc_attr_x( $text, $context, $domain = 'default' ) { return esc_attr( translate_with_gettext_context( $text, $context, $domain ) ); } /** * Translate string with gettext context, and escapes it for safe use in HTML output. * * If there is no translation, or the text domain isn't loaded, the original text * is escaped and returned. * * @since 2.9.0 * * @param string $text Text to translate. * @param string $context Context information for the translators. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. * @return string Translated text. */ function esc_html_x( $text, $context, $domain = 'default' ) { return esc_html( translate_with_gettext_context( $text, $context, $domain ) ); } /** * Translates and retrieves the singular or plural form based on the supplied number. * * Used when you want to use the appropriate form of a string based on whether a * number is singular or plural. * * Example: * * printf( _n( '%s person', '%s people', $count, 'text-domain' ), number_format_i18n( $count ) ); * * @since 2.8.0 * @since 5.5.0 Introduced ngettext-{$domain} filter. * * @param string $single The text to be used if the number is singular. * @param string $plural The text to be used if the number is plural. * @param int $number The number to compare against to use either the singular or plural form. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. * @return string The translated singular or plural form. */ function _n( $single, $plural, $number, $domain = 'default' ) { $translations = get_translations_for_domain( $domain ); $translation = $translations->translate_plural( $single, $plural, $number ); /** * Filters the singular or plural form of a string. * * @since 2.2.0 * * @param string $translation Translated text. * @param string $single The text to be used if the number is singular. * @param string $plural The text to be used if the number is plural. * @param string $number The number to compare against to use either the singular or plural form. * @param string $domain Text domain. Unique identifier for retrieving translated strings. */ $translation = apply_filters( 'ngettext', $translation, $single, $plural, $number, $domain ); /** * Filters the singular or plural form of a string for a domain. * * The dynamic portion of the hook, `$domain`, refers to the text domain. * * @since 5.5.0 * * @param string $translation Translated text. * @param string $single The text to be used if the number is singular. * @param string $plural The text to be used if the number is plural. * @param string $number The number to compare against to use either the singular or plural form. * @param string $domain Text domain. Unique identifier for retrieving translated strings. */ $translation = apply_filters( "ngettext_{$domain}", $translation, $single, $plural, $number, $domain ); return $translation; } /** * Translates and retrieves the singular or plural form based on the supplied number, with gettext context. * * This is a hybrid of _n() and _x(). It supports context and plurals. * * Used when you want to use the appropriate form of a string with context based on whether a * number is singular or plural. * * Example of a generic phrase which is disambiguated via the context parameter: * * printf( _nx( '%s group', '%s groups', $people, 'group of people', 'text-domain' ), number_format_i18n( $people ) ); * printf( _nx( '%s group', '%s groups', $animals, 'group of animals', 'text-domain' ), number_format_i18n( $animals ) ); * * @since 2.8.0 * @since 5.5.0 Introduced ngettext_with_context-{$domain} filter. * * @param string $single The text to be used if the number is singular. * @param string $plural The text to be used if the number is plural. * @param int $number The number to compare against to use either the singular or plural form. * @param string $context Context information for the translators. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. * @return string The translated singular or plural form. */ function _nx( $single, $plural, $number, $context, $domain = 'default' ) { $translations = get_translations_for_domain( $domain ); $translation = $translations->translate_plural( $single, $plural, $number, $context ); /** * Filters the singular or plural form of a string with gettext context. * * @since 2.8.0 * * @param string $translation Translated text. * @param string $single The text to be used if the number is singular. * @param string $plural The text to be used if the number is plural. * @param string $number The number to compare against to use either the singular or plural form. * @param string $context Context information for the translators. * @param string $domain Text domain. Unique identifier for retrieving translated strings. */ $translation = apply_filters( 'ngettext_with_context', $translation, $single, $plural, $number, $context, $domain ); /** * Filters the singular or plural form of a string with gettext context for a domain. * * The dynamic portion of the hook, `$domain`, refers to the text domain. * * @since 5.5.0 * * @param string $translation Translated text. * @param string $single The text to be used if the number is singular. * @param string $plural The text to be used if the number is plural. * @param string $number The number to compare against to use either the singular or plural form. * @param string $context Context information for the translators. * @param string $domain Text domain. Unique identifier for retrieving translated strings. */ $translation = apply_filters( "ngettext_with_context_{$domain}", $translation, $single, $plural, $number, $context, $domain ); return $translation; } /** * Registers plural strings in POT file, but does not translate them. * * Used when you want to keep structures with translatable plural * strings and use them later when the number is known. * * Example: * * $message = _n_noop( '%s post', '%s posts', 'text-domain' ); * ... * printf( translate_nooped_plural( $message, $count, 'text-domain' ), number_format_i18n( $count ) ); * * @since 2.5.0 * * @param string $singular Singular form to be localized. * @param string $plural Plural form to be localized. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default null. * @return array { * Array of translation information for the strings. * * @type string $0 Singular form to be localized. No longer used. * @type string $1 Plural form to be localized. No longer used. * @type string $singular Singular form to be localized. * @type string $plural Plural form to be localized. * @type null $context Context information for the translators. * @type string $domain Text domain. * } */ function _n_noop( $singular, $plural, $domain = null ) { return array( 0 => $singular, 1 => $plural, 'singular' => $singular, 'plural' => $plural, 'context' => null, 'domain' => $domain, ); } /** * Registers plural strings with gettext context in POT file, but does not translate them. * * Used when you want to keep structures with translatable plural * strings and use them later when the number is known. * * Example of a generic phrase which is disambiguated via the context parameter: * * $messages = array( * 'people' => _nx_noop( '%s group', '%s groups', 'people', 'text-domain' ), * 'animals' => _nx_noop( '%s group', '%s groups', 'animals', 'text-domain' ), * ); * ... * $message = $messages[ $type ]; * printf( translate_nooped_plural( $message, $count, 'text-domain' ), number_format_i18n( $count ) ); * * @since 2.8.0 * * @param string $singular Singular form to be localized. * @param string $plural Plural form to be localized. * @param string $context Context information for the translators. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default null. * @return array { * Array of translation information for the strings. * * @type string $0 Singular form to be localized. No longer used. * @type string $1 Plural form to be localized. No longer used. * @type string $2 Context information for the translators. No longer used. * @type string $singular Singular form to be localized. * @type string $plural Plural form to be localized. * @type string $context Context information for the translators. * @type string $domain Text domain. * } */ function _nx_noop( $singular, $plural, $context, $domain = null ) { return array( 0 => $singular, 1 => $plural, 2 => $context, 'singular' => $singular, 'plural' => $plural, 'context' => $context, 'domain' => $domain, ); } /** * Translates and retrieves the singular or plural form of a string that's been registered * with _n_noop() or _nx_noop(). * * Used when you want to use a translatable plural string once the number is known. * * Example: * * $message = _n_noop( '%s post', '%s posts', 'text-domain' ); * ... * printf( translate_nooped_plural( $message, $count, 'text-domain' ), number_format_i18n( $count ) ); * * @since 3.1.0 * * @param array $nooped_plural Array with singular, plural, and context keys, usually the result of _n_noop() or _nx_noop(). * @param int $count Number of objects. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. If $nooped_plural contains * a text domain passed to _n_noop() or _nx_noop(), it will override this value. Default 'default'. * @return string Either $single or $plural translated text. */ function translate_nooped_plural( $nooped_plural, $count, $domain = 'default' ) { if ( $nooped_plural['domain'] ) { $domain = $nooped_plural['domain']; } if ( $nooped_plural['context'] ) { return _nx( $nooped_plural['singular'], $nooped_plural['plural'], $count, $nooped_plural['context'], $domain ); } else { return _n( $nooped_plural['singular'], $nooped_plural['plural'], $count, $domain ); } } /** * Load a .mo file into the text domain $domain. * * If the text domain already exists, the translations will be merged. If both * sets have the same string, the translation from the original value will be taken. * * On success, the .mo file will be placed in the $l10n global by $domain * and will be a MO object. * * @since 1.5.0 * * @global MO[] $l10n An array of all currently loaded text domains. * @global MO[] $l10n_unloaded An array of all text domains that have been unloaded again. * * @param string $domain Text domain. Unique identifier for retrieving translated strings. * @param string $mofile Path to the .mo file. * @return bool True on success, false on failure. */ function load_textdomain( $domain, $mofile ) { global $l10n, $l10n_unloaded; $l10n_unloaded = (array) $l10n_unloaded; /** * Filters whether to override the .mo file loading. * * @since 2.9.0 * * @param bool $override Whether to override the .mo file loading. Default false. * @param string $domain Text domain. Unique identifier for retrieving translated strings. * @param string $mofile Path to the MO file. */ $plugin_override = apply_filters( 'override_load_textdomain', false, $domain, $mofile ); if ( true === (bool) $plugin_override ) { unset( $l10n_unloaded[ $domain ] ); return true; } /** * Fires before the MO translation file is loaded. * * @since 2.9.0 * * @param string $domain Text domain. Unique identifier for retrieving translated strings. * @param string $mofile Path to the .mo file. */ do_action( 'load_textdomain', $domain, $mofile ); /** * Filters MO file path for loading translations for a specific text domain. * * @since 2.9.0 * * @param string $mofile Path to the MO file. * @param string $domain Text domain. Unique identifier for retrieving translated strings. */ $mofile = apply_filters( 'load_textdomain_mofile', $mofile, $domain ); if ( ! is_readable( $mofile ) ) { return false; } $mo = new MO(); if ( ! $mo->import_from_file( $mofile ) ) { return false; } if ( isset( $l10n[ $domain ] ) ) { $mo->merge_with( $l10n[ $domain ] ); } unset( $l10n_unloaded[ $domain ] ); $l10n[ $domain ] = &$mo; return true; } /** * Unload translations for a text domain. * * @since 3.0.0 * * @global MO[] $l10n An array of all currently loaded text domains. * @global MO[] $l10n_unloaded An array of all text domains that have been unloaded again. * * @param string $domain Text domain. Unique identifier for retrieving translated strings. * @return bool Whether textdomain was unloaded. */ function unload_textdomain( $domain ) { global $l10n, $l10n_unloaded; $l10n_unloaded = (array) $l10n_unloaded; /** * Filters whether to override the text domain unloading. * * @since 3.0.0 * * @param bool $override Whether to override the text domain unloading. Default false. * @param string $domain Text domain. Unique identifier for retrieving translated strings. */ $plugin_override = apply_filters( 'override_unload_textdomain', false, $domain ); if ( $plugin_override ) { $l10n_unloaded[ $domain ] = true; return true; } /** * Fires before the text domain is unloaded. * * @since 3.0.0 * * @param string $domain Text domain. Unique identifier for retrieving translated strings. */ do_action( 'unload_textdomain', $domain ); if ( isset( $l10n[ $domain ] ) ) { unset( $l10n[ $domain ] ); $l10n_unloaded[ $domain ] = true; return true; } return false; } /** * Load default translated strings based on locale. * * Loads the .mo file in WP_LANG_DIR constant path from WordPress root. * The translated (.mo) file is named based on the locale. * * @see load_textdomain() * * @since 1.5.0 * * @param string $locale Optional. Locale to load. Default is the value of get_locale(). * @return bool Whether the textdomain was loaded. */ function load_default_textdomain( $locale = null ) { if ( null === $locale ) { $locale = determine_locale(); } // Unload previously loaded strings so we can switch translations. unload_textdomain( 'default' ); $return = load_textdomain( 'default', WP_LANG_DIR . "/$locale.mo" ); if ( ( is_multisite() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) && ! file_exists( WP_LANG_DIR . "/admin-$locale.mo" ) ) { load_textdomain( 'default', WP_LANG_DIR . "/ms-$locale.mo" ); return $return; } if ( is_admin() || wp_installing() || ( defined( 'WP_REPAIRING' ) && WP_REPAIRING ) ) { load_textdomain( 'default', WP_LANG_DIR . "/admin-$locale.mo" ); } if ( is_network_admin() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) { load_textdomain( 'default', WP_LANG_DIR . "/admin-network-$locale.mo" ); } return $return; } /** * Loads a 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 text domain with a dash, and then the locale exactly. * * @since 1.5.0 * @since 4.6.0 The function now tries to load the .mo file from the languages directory first. * * @param string $domain Unique identifier for retrieving translated strings * @param string|false $deprecated Optional. Deprecated. Use the $plugin_rel_path parameter instead. * Default false. * @param string|false $plugin_rel_path Optional. Relative path to WP_PLUGIN_DIR where the .mo file resides. * Default false. * @return bool True when textdomain is successfully loaded, false otherwise. */ function load_plugin_textdomain( $domain, $deprecated = false, $plugin_rel_path = false ) { /** * Filters a plugin's locale. * * @since 3.0.0 * * @param string $locale The plugin's current locale. * @param string $domain Text domain. Unique identifier for retrieving translated strings. */ $locale = apply_filters( 'plugin_locale', determine_locale(), $domain ); $mofile = $domain . '-' . $locale . '.mo'; // Try to load from the languages directory first. if ( load_textdomain( $domain, WP_LANG_DIR . '/plugins/' . $mofile ) ) { return true; } if ( false !== $plugin_rel_path ) { $path = WP_PLUGIN_DIR . '/' . trim( $plugin_rel_path, '/' ); } elseif ( false !== $deprecated ) { _deprecated_argument( __FUNCTION__, '2.7.0' ); $path = ABSPATH . trim( $deprecated, '/' ); } else { $path = WP_PLUGIN_DIR; } return load_textdomain( $domain, $path . '/' . $mofile ); } /** * Load the translated strings for a plugin residing in the mu-plugins directory. * * @since 3.0.0 * @since 4.6.0 The function now tries to load the .mo file from the languages directory first. * * @param string $domain Text domain. Unique identifier for retrieving translated strings. * @param string $mu_plugin_rel_path Optional. Relative to `WPMU_PLUGIN_DIR` directory in which the .mo * file resides. Default empty string. * @return bool True when textdomain is successfully loaded, false otherwise. */ function load_muplugin_textdomain( $domain, $mu_plugin_rel_path = '' ) { /** This filter is documented in wp-includes/l10n.php */ $locale = apply_filters( 'plugin_locale', determine_locale(), $domain ); $mofile = $domain . '-' . $locale . '.mo'; // Try to load from the languages directory first. if ( load_textdomain( $domain, WP_LANG_DIR . '/plugins/' . $mofile ) ) { return true; } $path = WPMU_PLUGIN_DIR . '/' . ltrim( $mu_plugin_rel_path, '/' ); return load_textdomain( $domain, $path . '/' . $mofile ); } /** * Load the theme's translated strings. * * 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 * @since 4.6.0 The function now tries to load the .mo file from the languages directory first. * * @param string $domain Text domain. Unique identifier for retrieving translated strings. * @param string|false $path Optional. Path to the directory containing the .mo file. * Default false. * @return bool True when textdomain is successfully loaded, false otherwise. */ function load_theme_textdomain( $domain, $path = false ) { /** * Filters a theme's locale. * * @since 3.0.0 * * @param string $locale The theme's current locale. * @param string $domain Text domain. Unique identifier for retrieving translated strings. */ $locale = apply_filters( 'theme_locale', determine_locale(), $domain ); $mofile = $domain . '-' . $locale . '.mo'; // Try to load from the languages directory first. if ( load_textdomain( $domain, WP_LANG_DIR . '/themes/' . $mofile ) ) { return true; } if ( ! $path ) { $path = get_template_directory(); } return load_textdomain( $domain, $path . '/' . $locale . '.mo' ); } /** * Load the child themes translated strings. * * If the current locale exists as a .mo file in the child themes * 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 2.9.0 * * @param string $domain Text domain. Unique identifier for retrieving translated strings. * @param string|false $path Optional. Path to the directory containing the .mo file. * Default false. * @return bool True when the theme textdomain is successfully loaded, false otherwise. */ function load_child_theme_textdomain( $domain, $path = false ) { if ( ! $path ) { $path = get_stylesheet_directory(); } return load_theme_textdomain( $domain, $path ); } /** * Loads the script translated strings. * * @since 5.0.0 * @since 5.0.2 Uses load_script_translations() to load translation data. * @since 5.1.0 The `$domain` parameter was made optional. * * @see WP_Scripts::set_translations() * * @param string $handle Name of the script to register a translation domain to. * @param string $domain Optional. Text domain. Default 'default'. * @param string $path Optional. The full file path to the directory containing translation files. * @return string|false The translated strings in JSON encoding on success, * false if the script textdomain could not be loaded. */ function load_script_textdomain( $handle, $domain = 'default', $path = null ) { $wp_scripts = wp_scripts(); if ( ! isset( $wp_scripts->registered[ $handle ] ) ) { return false; } $path = untrailingslashit( $path ); $locale = determine_locale(); // If a path was given and the handle file exists simply return it. $file_base = 'default' === $domain ? $locale : $domain . '-' . $locale; $handle_filename = $file_base . '-' . $handle . '.json'; if ( $path ) { $translations = load_script_translations( $path . '/' . $handle_filename, $handle, $domain ); if ( $translations ) { return $translations; } } $src = $wp_scripts->registered[ $handle ]->src; if ( ! preg_match( '|^(https?:)?//|', $src ) && ! ( $wp_scripts->content_url && 0 === strpos( $src, $wp_scripts->content_url ) ) ) { $src = $wp_scripts->base_url . $src; } $relative = false; $languages_path = WP_LANG_DIR; $src_url = wp_parse_url( $src ); $content_url = wp_parse_url( content_url() ); $plugins_url = wp_parse_url( plugins_url() ); $site_url = wp_parse_url( site_url() ); // If the host is the same or it's a relative URL. if ( ( ! isset( $content_url['path'] ) || strpos( $src_url['path'], $content_url['path'] ) === 0 ) && ( ! isset( $src_url['host'] ) || ! isset( $content_url['host'] ) || $src_url['host'] === $content_url['host'] ) ) { // Make the src relative the specific plugin or theme. if ( isset( $content_url['path'] ) ) { $relative = substr( $src_url['path'], strlen( $content_url['path'] ) ); } else { $relative = $src_url['path']; } $relative = trim( $relative, '/' ); $relative = explode( '/', $relative ); $languages_path = WP_LANG_DIR . '/' . $relative[0]; $relative = array_slice( $relative, 2 ); // Remove plugins/<plugin name> or themes/<theme name>. $relative = implode( '/', $relative ); } elseif ( ( ! isset( $plugins_url['path'] ) || strpos( $src_url['path'], $plugins_url['path'] ) === 0 ) && ( ! isset( $src_url['host'] ) || ! isset( $plugins_url['host'] ) || $src_url['host'] === $plugins_url['host'] ) ) { // Make the src relative the specific plugin. if ( isset( $plugins_url['path'] ) ) { $relative = substr( $src_url['path'], strlen( $plugins_url['path'] ) ); } else { $relative = $src_url['path']; } $relative = trim( $relative, '/' ); $relative = explode( '/', $relative ); $languages_path = WP_LANG_DIR . '/plugins'; $relative = array_slice( $relative, 1 ); // Remove <plugin name>. $relative = implode( '/', $relative ); } elseif ( ! isset( $src_url['host'] ) || ! isset( $site_url['host'] ) || $src_url['host'] === $site_url['host'] ) { if ( ! isset( $site_url['path'] ) ) { $relative = trim( $src_url['path'], '/' ); } elseif ( ( strpos( $src_url['path'], trailingslashit( $site_url['path'] ) ) === 0 ) ) { // Make the src relative to the WP root. $relative = substr( $src_url['path'], strlen( $site_url['path'] ) ); $relative = trim( $relative, '/' ); } } /** * Filters the relative path of scripts used for finding translation files. * * @since 5.0.2 * * @param string|false $relative The relative path of the script. False if it could not be determined. * @param string $src The full source URL of the script. */ $relative = apply_filters( 'load_script_textdomain_relative_path', $relative, $src ); // If the source is not from WP. if ( false === $relative ) { return load_script_translations( false, $handle, $domain ); } // Translations are always based on the unminified filename. if ( substr( $relative, -7 ) === '.min.js' ) { $relative = substr( $relative, 0, -7 ) . '.js'; } $md5_filename = $file_base . '-' . md5( $relative ) . '.json'; if ( $path ) { $translations = load_script_translations( $path . '/' . $md5_filename, $handle, $domain ); if ( $translations ) { return $translations; } } $translations = load_script_translations( $languages_path . '/' . $md5_filename, $handle, $domain ); if ( $translations ) { return $translations; } return load_script_translations( false, $handle, $domain ); } /** * Loads the translation data for the given script handle and text domain. * * @since 5.0.2 * * @param string|false $file Path to the translation file to load. False if there isn't one. * @param string $handle Name of the script to register a translation domain to. * @param string $domain The text domain. * @return string|false The JSON-encoded translated strings for the given script handle and text domain. * False if there are none. */ function load_script_translations( $file, $handle, $domain ) { /** * Pre-filters script translations for the given file, script handle and text domain. * * Returning a non-null value allows to override the default logic, effectively short-circuiting the function. * * @since 5.0.2 * * @param string|false|null $translations JSON-encoded translation data. Default null. * @param string|false $file Path to the translation file to load. False if there isn't one. * @param string $handle Name of the script to register a translation domain to. * @param string $domain The text domain. */ $translations = apply_filters( 'pre_load_script_translations', null, $file, $handle, $domain ); if ( null !== $translations ) { return $translations; } /** * Filters the file path for loading script translations for the given script handle and text domain. * * @since 5.0.2 * * @param string|false $file Path to the translation file to load. False if there isn't one. * @param string $handle Name of the script to register a translation domain to. * @param string $domain The text domain. */ $file = apply_filters( 'load_script_translation_file', $file, $handle, $domain ); if ( ! $file || ! is_readable( $file ) ) { return false; } $translations = file_get_contents( $file ); /** * Filters script translations for the given file, script handle and text domain. * * @since 5.0.2 * * @param string $translations JSON-encoded translation data. * @param string $file Path to the translation file that was loaded. * @param string $handle Name of the script to register a translation domain to. * @param string $domain The text domain. */ return apply_filters( 'load_script_translations', $translations, $file, $handle, $domain ); } /** * Loads plugin and theme textdomains just-in-time. * * When a textdomain is encountered for the first time, we try to load * the translation file from `wp-content/languages`, removing the need * to call load_plugin_texdomain() or load_theme_texdomain(). * * @since 4.6.0 * @access private * * @see get_translations_for_domain() * @global MO[] $l10n_unloaded An array of all text domains that have been unloaded again. * * @param string $domain Text domain. Unique identifier for retrieving translated strings. * @return bool True when the textdomain is successfully loaded, false otherwise. */ function _load_textdomain_just_in_time( $domain ) { global $l10n_unloaded; $l10n_unloaded = (array) $l10n_unloaded; // Short-circuit if domain is 'default' which is reserved for core. if ( 'default' === $domain || isset( $l10n_unloaded[ $domain ] ) ) { return false; } $translation_path = _get_path_to_translation( $domain ); if ( false === $translation_path ) { return false; } return load_textdomain( $domain, $translation_path ); } /** * Gets the path to a translation file for loading a textdomain just in time. * * Caches the retrieved results internally. * * @since 4.7.0 * @access private * * @see _load_textdomain_just_in_time() * * @param string $domain Text domain. Unique identifier for retrieving translated strings. * @param bool $reset Whether to reset the internal cache. Used by the switch to locale functionality. * @return string|false The path to the translation file or false if no translation file was found. */ function _get_path_to_translation( $domain, $reset = false ) { static $available_translations = array(); if ( true === $reset ) { $available_translations = array(); } if ( ! isset( $available_translations[ $domain ] ) ) { $available_translations[ $domain ] = _get_path_to_translation_from_lang_dir( $domain ); } return $available_translations[ $domain ]; } /** * Gets the path to a translation file in the languages directory for the current locale. * * Holds a cached list of available .mo files to improve performance. * * @since 4.7.0 * @access private * * @see _get_path_to_translation() * * @param string $domain Text domain. Unique identifier for retrieving translated strings. * @return string|false The path to the translation file or false if no translation file was found. */ function _get_path_to_translation_from_lang_dir( $domain ) { static $cached_mofiles = null; if ( null === $cached_mofiles ) { $cached_mofiles = array(); $locations = array( WP_LANG_DIR . '/plugins', WP_LANG_DIR . '/themes', ); foreach ( $locations as $location ) { $mofiles = glob( $location . '/*.mo' ); if ( $mofiles ) { $cached_mofiles = array_merge( $cached_mofiles, $mofiles ); } } } $locale = determine_locale(); $mofile = "{$domain}-{$locale}.mo"; $path = WP_LANG_DIR . '/plugins/' . $mofile; if ( in_array( $path, $cached_mofiles, true ) ) { return $path; } $path = WP_LANG_DIR . '/themes/' . $mofile; if ( in_array( $path, $cached_mofiles, true ) ) { return $path; } return false; } /** * Return the Translations instance for a text domain. * * If there isn't one, returns empty Translations instance. * * @since 2.8.0 * * @global MO[] $l10n * * @param string $domain Text domain. Unique identifier for retrieving translated strings. * @return Translations|NOOP_Translations A Translations instance. */ function get_translations_for_domain( $domain ) { global $l10n; if ( isset( $l10n[ $domain ] ) || ( _load_textdomain_just_in_time( $domain ) && isset( $l10n[ $domain ] ) ) ) { return $l10n[ $domain ]; } static $noop_translations = null; if ( null === $noop_translations ) { $noop_translations = new NOOP_Translations; } return $noop_translations; } /** * Whether there are translations for the text domain. * * @since 3.0.0 * * @global MO[] $l10n * * @param string $domain Text domain. Unique identifier for retrieving translated strings. * @return bool Whether there are translations. */ function is_textdomain_loaded( $domain ) { global $l10n; return isset( $l10n[ $domain ] ); } /** * Translates role name. * * Since the role names are in the database and not in the source there * are dummy gettext calls to get them into the POT file and this function * properly translates them back. * * The before_last_bar() call is needed, because older installations keep the roles * using the old context format: 'Role name|User role' and just skipping the * content after the last bar is easier than fixing them in the DB. New installations * won't suffer from that problem. * * @since 2.8.0 * @since 5.2.0 Added the `$domain` parameter. * * @param string $name The role name. * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. * Default 'default'. * @return string Translated role name on success, original name on failure. */ function translate_user_role( $name, $domain = 'default' ) { return translate_with_gettext_context( before_last_bar( $name ), 'User role', $domain ); } /** * Get all available languages based on the presence of *.mo files in a given directory. * * The default directory is WP_LANG_DIR. * * @since 3.0.0 * @since 4.7.0 The results are now filterable with the {@see 'get_available_languages'} filter. * * @param string $dir A directory to search for language files. * Default WP_LANG_DIR. * @return string[] An array of language codes or an empty array if no languages are present. Language codes are formed by stripping the .mo extension from the language file names. */ function get_available_languages( $dir = null ) { $languages = array(); $lang_files = glob( ( is_null( $dir ) ? WP_LANG_DIR : $dir ) . '/*.mo' ); if ( $lang_files ) { foreach ( $lang_files as $lang_file ) { $lang_file = basename( $lang_file, '.mo' ); if ( 0 !== strpos( $lang_file, 'continents-cities' ) && 0 !== strpos( $lang_file, 'ms-' ) && 0 !== strpos( $lang_file, 'admin-' ) ) { $languages[] = $lang_file; } } } /** * Filters the list of available language codes. * * @since 4.7.0 * * @param string[] $languages An array of available language codes. * @param string $dir The directory where the language files were found. */ return apply_filters( 'get_available_languages', $languages, $dir ); } /** * Get installed translations. * * Looks in the wp-content/languages directory for translations of * plugins or themes. * * @since 3.7.0 * * @param string $type What to search for. Accepts 'plugins', 'themes', 'core'. * @return array Array of language data. */ function wp_get_installed_translations( $type ) { if ( 'themes' !== $type && 'plugins' !== $type && 'core' !== $type ) { return array(); } $dir = 'core' === $type ? '' : "/$type"; if ( ! is_dir( WP_LANG_DIR ) ) { return array(); } if ( $dir && ! is_dir( WP_LANG_DIR . $dir ) ) { return array(); } $files = scandir( WP_LANG_DIR . $dir ); if ( ! $files ) { return array(); } $language_data = array(); foreach ( $files as $file ) { if ( '.' === $file[0] || is_dir( WP_LANG_DIR . "$dir/$file" ) ) { continue; } if ( substr( $file, -3 ) !== '.po' ) { continue; } if ( ! preg_match( '/(?:(.+)-)?([a-z]{2,3}(?:_[A-Z]{2})?(?:_[a-z0-9]+)?).po/', $file, $match ) ) { continue; } if ( ! in_array( substr( $file, 0, -3 ) . '.mo', $files, true ) ) { continue; } list( , $textdomain, $language ) = $match; if ( '' === $textdomain ) { $textdomain = 'default'; } $language_data[ $textdomain ][ $language ] = wp_get_pomo_file_data( WP_LANG_DIR . "$dir/$file" ); } return $language_data; } /** * Extract headers from a PO file. * * @since 3.7.0 * * @param string $po_file Path to PO file. * @return string[] Array of PO file header values keyed by header name. */ function wp_get_pomo_file_data( $po_file ) { $headers = get_file_data( $po_file, array( 'POT-Creation-Date' => '"POT-Creation-Date', 'PO-Revision-Date' => '"PO-Revision-Date', 'Project-Id-Version' => '"Project-Id-Version', 'X-Generator' => '"X-Generator', ) ); foreach ( $headers as $header => $value ) { // Remove possible contextual '\n' and closing double quote. $headers[ $header ] = preg_replace( '~(\\\n)?"$~', '', $value ); } return $headers; } /** * Language selector. * * @since 4.0.0 * @since 4.3.0 Introduced the `echo` argument. * @since 4.7.0 Introduced the `show_option_site_default` argument. * @since 5.1.0 Introduced the `show_option_en_us` argument. * * @see get_available_languages() * @see wp_get_available_translations() * * @param string|array $args { * Optional. Array or string of arguments for outputting the language selector. * * @type string $id ID attribute of the select element. Default 'locale'. * @type string $name Name attribute of the select element. Default 'locale'. * @type array $languages List of installed languages, contain only the locales. * Default empty array. * @type array $translations List of available translations. Default result of * wp_get_available_translations(). * @type string $selected Language which should be selected. Default empty. * @type bool|int $echo Whether to echo the generated markup. Accepts 0, 1, or their * boolean equivalents. Default 1. * @type bool $show_available_translations Whether to show available translations. Default true. * @type bool $show_option_site_default Whether to show an option to fall back to the site's locale. Default false. * @type bool $show_option_en_us Whether to show an option for English (United States). Default true. * } * @return string HTML dropdown list of languages. */ function wp_dropdown_languages( $args = array() ) { $parsed_args = wp_parse_args( $args, array( 'id' => 'locale', 'name' => 'locale', 'languages' => array(), 'translations' => array(), 'selected' => '', 'echo' => 1, 'show_available_translations' => true, 'show_option_site_default' => false, 'show_option_en_us' => true, ) ); // Bail if no ID or no name. if ( ! $parsed_args['id'] || ! $parsed_args['name'] ) { return; } // English (United States) uses an empty string for the value attribute. if ( 'en_US' === $parsed_args['selected'] ) { $parsed_args['selected'] = ''; } $translations = $parsed_args['translations']; if ( empty( $translations ) ) { require_once ABSPATH . 'wp-admin/includes/translation-install.php'; $translations = wp_get_available_translations(); } /* * $parsed_args['languages'] should only contain the locales. Find the locale in * $translations to get the native name. Fall back to locale. */ $languages = array(); foreach ( $parsed_args['languages'] as $locale ) { if ( isset( $translations[ $locale ] ) ) { $translation = $translations[ $locale ]; $languages[] = array( 'language' => $translation['language'], 'native_name' => $translation['native_name'], 'lang' => current( $translation['iso'] ), ); // Remove installed language from available translations. unset( $translations[ $locale ] ); } else { $languages[] = array( 'language' => $locale, 'native_name' => $locale, 'lang' => '', ); } } $translations_available = ( ! empty( $translations ) && $parsed_args['show_available_translations'] ); // Holds the HTML markup. $structure = array(); // List installed languages. if ( $translations_available ) { $structure[] = '<optgroup label="' . esc_attr_x( 'Installed', 'translations' ) . '">'; } // Site default. if ( $parsed_args['show_option_site_default'] ) { $structure[] = sprintf( '<option value="site-default" data-installed="1"%s>%s</option>', selected( 'site-default', $parsed_args['selected'], false ), _x( 'Site Default', 'default site language' ) ); } if ( $parsed_args['show_option_en_us'] ) { $structure[] = sprintf( '<option value="" lang="en" data-installed="1"%s>English (United States)</option>', selected( '', $parsed_args['selected'], false ) ); } // List installed languages. foreach ( $languages as $language ) { $structure[] = sprintf( '<option value="%s" lang="%s"%s data-installed="1">%s</option>', esc_attr( $language['language'] ), esc_attr( $language['lang'] ), selected( $language['language'], $parsed_args['selected'], false ), esc_html( $language['native_name'] ) ); } if ( $translations_available ) { $structure[] = '</optgroup>'; } // List available translations. if ( $translations_available ) { $structure[] = '<optgroup label="' . esc_attr_x( 'Available', 'translations' ) . '">'; foreach ( $translations as $translation ) { $structure[] = sprintf( '<option value="%s" lang="%s"%s>%s</option>', esc_attr( $translation['language'] ), esc_attr( current( $translation['iso'] ) ), selected( $translation['language'], $parsed_args['selected'], false ), esc_html( $translation['native_name'] ) ); } $structure[] = '</optgroup>'; } // Combine the output string. $output = sprintf( '<select name="%s" id="%s">', esc_attr( $parsed_args['name'] ), esc_attr( $parsed_args['id'] ) ); $output .= implode( "\n", $structure ); $output .= '</select>'; if ( $parsed_args['echo'] ) { echo $output; } return $output; } /** * Determines whether the current locale is right-to-left (RTL). * * For more information on this and similar theme functions, check out * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ * Conditional Tags} article in the Theme Developer Handbook. * * @since 3.0.0 * * @global WP_Locale $wp_locale WordPress date and time locale object. * * @return bool Whether locale is RTL. */ function is_rtl() { global $wp_locale; if ( ! ( $wp_locale instanceof WP_Locale ) ) { return false; } return $wp_locale->is_rtl(); } /** * Switches the translations according to the given locale. * * @since 4.7.0 * * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object. * * @param string $locale The locale. * @return bool True on success, false on failure. */ function switch_to_locale( $locale ) { /* @var WP_Locale_Switcher $wp_locale_switcher */ global $wp_locale_switcher; return $wp_locale_switcher->switch_to_locale( $locale ); } /** * Restores the translations according to the previous locale. * * @since 4.7.0 * * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object. * * @return string|false Locale on success, false on error. */ function restore_previous_locale() { /* @var WP_Locale_Switcher $wp_locale_switcher */ global $wp_locale_switcher; return $wp_locale_switcher->restore_previous_locale(); } /** * Restores the translations according to the original locale. * * @since 4.7.0 * * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object. * * @return string|false Locale on success, false on error. */ function restore_current_locale() { /* @var WP_Locale_Switcher $wp_locale_switcher */ global $wp_locale_switcher; return $wp_locale_switcher->restore_current_locale(); } /** * Whether switch_to_locale() is in effect. * * @since 4.7.0 * * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object. * * @return bool True if the locale has been switched, false otherwise. */ function is_locale_switched() { /* @var WP_Locale_Switcher $wp_locale_switcher */ global $wp_locale_switcher; return $wp_locale_switcher->is_switched(); }