950 lines
31 KiB
PHP
950 lines
31 KiB
PHP
<?php
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/**
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* WordPress Translation API
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*
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* @package WordPress
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* @subpackage i18n
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*/
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/**
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* Get the current locale.
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*
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* If the locale is set, then it will filter the locale in the 'locale' filter
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* hook and return the value.
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*
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* If the locale is not set already, then the WPLANG constant is used if it is
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* defined. Then it is filtered through the 'locale' filter hook and the value
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* for the locale global set and the locale is returned.
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*
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* The process to get the locale should only be done once, but the locale will
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* always be filtered using the 'locale' hook.
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*
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* @since 1.5.0
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*
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* @return string The locale of the blog or from the 'locale' hook.
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*/
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function get_locale() {
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global $locale, $wp_local_package;
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if ( isset( $locale ) ) {
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/**
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* Filter WordPress install's locale ID.
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*
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* @since 1.5.0
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*
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* @param string $locale The locale ID.
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*/
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return apply_filters( 'locale', $locale );
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}
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if ( isset( $wp_local_package ) ) {
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$locale = $wp_local_package;
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}
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// WPLANG was defined in wp-config.
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if ( defined( 'WPLANG' ) ) {
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$locale = WPLANG;
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}
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// If multisite, check options.
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if ( is_multisite() ) {
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// Don't check blog option when installing.
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if ( defined( 'WP_INSTALLING' ) || ( false === $ms_locale = get_option( 'WPLANG' ) ) ) {
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$ms_locale = get_site_option( 'WPLANG' );
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}
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if ( $ms_locale !== false ) {
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$locale = $ms_locale;
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}
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} else {
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$db_locale = get_option( 'WPLANG' );
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if ( $db_locale !== false ) {
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$locale = $db_locale;
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}
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}
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if ( empty( $locale ) ) {
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$locale = 'en_US';
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}
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/** This filter is documented in wp-includes/l10n.php */
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return apply_filters( 'locale', $locale );
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}
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/**
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* Retrieve the translation of $text.
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*
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* If there is no translation, or the text domain isn't loaded, the original text is returned.
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*
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* <strong>Note:</strong> Don't use translate() directly, use __() or related functions.
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*
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* @since 2.2.0
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*
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* @param string $text Text to translate.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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* @return string Translated text
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*/
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function translate( $text, $domain = 'default' ) {
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$translations = get_translations_for_domain( $domain );
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$translations = $translations->translate( $text );
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/**
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* Filter text with its translation.
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*
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* @since 2.0.11
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*
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* @param string $translations Translated text.
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* @param string $text Text to translate.
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* @param string $domain Text domain. Unique identifier for retrieving translated strings.
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*/
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return apply_filters( 'gettext', $translations, $text, $domain );
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}
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/**
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* Remove last item on a pipe-delimited string.
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*
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* Meant for removing the last item in a string, such as 'Role name|User role'. The original
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* string will be returned if no pipe '|' characters are found in the string.
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*
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* @since 2.8.0
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*
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* @param string $string A pipe-delimited string.
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* @return string Either $string or everything before the last pipe.
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*/
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function before_last_bar( $string ) {
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$last_bar = strrpos( $string, '|' );
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if ( false == $last_bar )
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return $string;
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else
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return substr( $string, 0, $last_bar );
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}
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/**
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* Retrieve the translation of $text in the context defined in $context.
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*
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* If there is no translation, or the text domain isn't loaded the original
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* text is returned.
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*
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* @since 2.8.0
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*
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* @param string $text Text to translate.
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* @param string $context Context information for the translators.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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* @return string Translated text on success, original text on failure.
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*/
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function translate_with_gettext_context( $text, $context, $domain = 'default' ) {
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$translations = get_translations_for_domain( $domain );
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$translations = $translations->translate( $text, $context );
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/**
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* Filter text with its translation based on context information.
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*
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* @since 2.8.0
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*
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* @param string $translations Translated text.
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* @param string $text Text to translate.
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* @param string $context Context information for the translators.
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* @param string $domain Text domain. Unique identifier for retrieving translated strings.
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*/
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return apply_filters( 'gettext_with_context', $translations, $text, $context, $domain );
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}
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/**
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* Retrieve the translation of $text. If there is no translation,
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* or the text domain isn't loaded, the original text is returned.
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*
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* @since 2.1.0
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*
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* @param string $text Text to translate.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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* @return string Translated text.
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*/
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function __( $text, $domain = 'default' ) {
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return translate( $text, $domain );
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}
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/**
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* Retrieve the translation of $text and escapes it for safe use in an attribute.
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*
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* If there is no translation, or the text domain isn't loaded, the original text is returned.
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*
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* @since 2.8.0
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*
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* @param string $text Text to translate.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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* @return string Translated text on success, original text on failure.
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*/
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function esc_attr__( $text, $domain = 'default' ) {
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return esc_attr( translate( $text, $domain ) );
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}
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/**
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* Retrieve the translation of $text and escapes it for safe use in HTML output.
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*
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* If there is no translation, or the text domain isn't loaded, the original text is returned.
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*
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* @since 2.8.0
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*
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* @param string $text Text to translate.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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* @return string Translated text
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*/
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function esc_html__( $text, $domain = 'default' ) {
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return esc_html( translate( $text, $domain ) );
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}
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/**
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* Display translated text.
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*
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* @since 1.2.0
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*
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* @param string $text Text to translate.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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*/
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function _e( $text, $domain = 'default' ) {
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echo translate( $text, $domain );
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}
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/**
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* Display translated text that has been escaped for safe use in an attribute.
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*
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* @since 2.8.0
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*
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* @param string $text Text to translate.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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*/
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function esc_attr_e( $text, $domain = 'default' ) {
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echo esc_attr( translate( $text, $domain ) );
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}
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/**
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* Display translated text that has been escaped for safe use in HTML output.
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*
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* @since 2.8.0
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*
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* @param string $text Text to translate.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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*/
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function esc_html_e( $text, $domain = 'default' ) {
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echo esc_html( translate( $text, $domain ) );
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}
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/**
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* Retrieve translated string with gettext context.
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*
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* Quite a few times, there will be collisions with similar translatable text
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* found in more than two places, but with different translated context.
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*
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* By including the context in the pot file, translators can translate the two
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* strings differently.
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*
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* @since 2.8.0
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*
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* @param string $text Text to translate.
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* @param string $context Context information for the translators.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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* @return string Translated context string without pipe.
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*/
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function _x( $text, $context, $domain = 'default' ) {
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return translate_with_gettext_context( $text, $context, $domain );
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}
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/**
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* Display translated string with gettext context.
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*
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* @since 3.0.0
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*
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* @param string $text Text to translate.
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* @param string $context Context information for the translators.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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* @return string Translated context string without pipe.
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*/
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function _ex( $text, $context, $domain = 'default' ) {
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echo _x( $text, $context, $domain );
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}
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/**
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* Translate string with gettext context, and escapes it for safe use in an attribute.
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*
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* @since 2.8.0
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*
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* @param string $text Text to translate.
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* @param string $context Context information for the translators.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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* @return string Translated text
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*/
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function esc_attr_x( $text, $context, $domain = 'default' ) {
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return esc_attr( translate_with_gettext_context( $text, $context, $domain ) );
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}
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/**
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* Translate string with gettext context, and escapes it for safe use in HTML output.
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*
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* @since 2.9.0
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*
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* @param string $text Text to translate.
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* @param string $context Context information for the translators.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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* @return string Translated text.
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*/
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function esc_html_x( $text, $context, $domain = 'default' ) {
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return esc_html( translate_with_gettext_context( $text, $context, $domain ) );
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}
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/**
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* Retrieve the plural or single form based on the supplied amount.
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*
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* If the text domain is not set in the $l10n list, then a comparison will be made
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* and either $plural or $single parameters returned.
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*
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* If the text domain does exist, then the parameters $single, $plural, and $number
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* will first be passed to the text domain's ngettext method. Then it will be passed
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* to the 'ngettext' filter hook along with the same parameters. The expected
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* type will be a string.
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*
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* @since 2.8.0
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*
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* @param string $single The text that will be used if $number is 1.
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* @param string $plural The text that will be used if $number is not 1.
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* @param int $number The number to compare against to use either $single or $plural.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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* @return string Either $single or $plural translated text.
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*/
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function _n( $single, $plural, $number, $domain = 'default' ) {
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$translations = get_translations_for_domain( $domain );
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$translation = $translations->translate_plural( $single, $plural, $number );
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/**
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* Filter text with its translation when plural option is available.
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*
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* @since 2.2.0
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*
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* @param string $translation Translated text.
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* @param string $single The text that will be used if $number is 1.
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* @param string $plural The text that will be used if $number is not 1.
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* @param string $number The number to compare against to use either $single or $plural.
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* @param string $domain Text domain. Unique identifier for retrieving translated strings.
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*/
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return apply_filters( 'ngettext', $translation, $single, $plural, $number, $domain );
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}
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/**
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* Retrieve the plural or single form based on the supplied amount with gettext context.
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*
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* This is a hybrid of _n() and _x(). It supports contexts and plurals.
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*
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* @since 2.8.0
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*
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* @param string $single The text that will be used if $number is 1.
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* @param string $plural The text that will be used if $number is not 1.
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* @param int $number The number to compare against to use either $single or $plural.
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* @param string $context Context information for the translators.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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* @return string Either $single or $plural translated text with context.
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*/
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function _nx($single, $plural, $number, $context, $domain = 'default') {
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$translations = get_translations_for_domain( $domain );
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$translation = $translations->translate_plural( $single, $plural, $number, $context );
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/**
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* Filter text with its translation while plural option and context are available.
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*
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* @since 2.8.0
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*
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* @param string $translation Translated text.
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* @param string $single The text that will be used if $number is 1.
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* @param string $plural The text that will be used if $number is not 1.
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* @param string $number The number to compare against to use either $single or $plural.
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* @param string $context Context information for the translators.
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* @param string $domain Text domain. Unique identifier for retrieving translated strings.
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*/
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return apply_filters( 'ngettext_with_context', $translation, $single, $plural, $number, $context, $domain );
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}
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/**
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* Register plural strings in POT file, but don't translate them.
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*
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* Used when you want to keep structures with translatable plural
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* strings and use them later.
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*
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* Example:
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* <code>
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* $messages = array(
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* 'post' => _n_noop('%s post', '%s posts'),
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* 'page' => _n_noop('%s pages', '%s pages')
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* );
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* ...
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* $message = $messages[$type];
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* $usable_text = sprintf( translate_nooped_plural( $message, $count ), $count );
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* </code>
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*
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* @since 2.5.0
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*
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* @param string $singular Single form to be i18ned.
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* @param string $plural Plural form to be i18ned.
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
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* @return array array($singular, $plural)
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*/
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function _n_noop( $singular, $plural, $domain = null ) {
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return array( 0 => $singular, 1 => $plural, 'singular' => $singular, 'plural' => $plural, 'context' => null, 'domain' => $domain );
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}
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/**
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* Register plural strings with context in POT file, but don't translate them.
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*
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* @since 2.8.0
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*/
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function _nx_noop( $singular, $plural, $context, $domain = null ) {
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return array( 0 => $singular, 1 => $plural, 2 => $context, 'singular' => $singular, 'plural' => $plural, 'context' => $context, 'domain' => $domain );
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}
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/**
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* Translate the result of _n_noop() or _nx_noop().
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*
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* @since 3.1.0
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*
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* @param array $nooped_plural Array with singular, plural and context keys, usually the result of _n_noop() or _nx_noop()
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* @param int $count Number of objects
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* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. If $nooped_plural contains
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* a text domain passed to _n_noop() or _nx_noop(), it will override this value.
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* @return string Either $single or $plural translated text.
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*/
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function translate_nooped_plural( $nooped_plural, $count, $domain = 'default' ) {
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if ( $nooped_plural['domain'] )
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$domain = $nooped_plural['domain'];
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if ( $nooped_plural['context'] )
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return _nx( $nooped_plural['singular'], $nooped_plural['plural'], $count, $nooped_plural['context'], $domain );
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else
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return _n( $nooped_plural['singular'], $nooped_plural['plural'], $count, $domain );
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}
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/**
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* Load a .mo file into the text domain $domain.
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*
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* If the text domain already exists, the translations will be merged. If both
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* sets have the same string, the translation from the original value will be taken.
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*
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* On success, the .mo file will be placed in the $l10n global by $domain
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* and will be a MO object.
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*
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* @since 1.5.0
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*
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* @param string $domain Text domain. Unique identifier for retrieving translated strings.
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* @param string $mofile Path to the .mo file.
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* @return bool True on success, false on failure.
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*/
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function load_textdomain( $domain, $mofile ) {
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global $l10n;
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/**
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* Filter text domain and/or MO file path for loading translations.
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*
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* @since 2.9.0
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*
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* @param bool $override Whether to override the text domain. Default false.
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* @param string $domain Text domain. Unique identifier for retrieving translated strings.
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* @param string $mofile Path to the MO file.
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*/
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$plugin_override = apply_filters( 'override_load_textdomain', false, $domain, $mofile );
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if ( true == $plugin_override ) {
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return true;
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}
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/**
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* Fires before the MO translation file is loaded.
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*
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* @since 2.9.0
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*
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* @param string $domain Text domain. Unique identifier for retrieving translated strings.
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* @param string $mofile Path to the .mo file.
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*/
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do_action( 'load_textdomain', $domain, $mofile );
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/**
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* Filter MO file path for loading translations for a specific text domain.
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*
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* @since 2.9.0
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*
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* @param string $mofile Path to the MO file.
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* @param string $domain Text domain. Unique identifier for retrieving translated strings.
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*/
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$mofile = apply_filters( 'load_textdomain_mofile', $mofile, $domain );
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if ( !is_readable( $mofile ) ) return false;
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$mo = new MO();
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if ( !$mo->import_from_file( $mofile ) ) return false;
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if ( isset( $l10n[$domain] ) )
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$mo->merge_with( $l10n[$domain] );
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$l10n[$domain] = &$mo;
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return true;
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}
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/**
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* Unload translations for a text domain.
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*
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* @since 3.0.0
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*
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* @param string $domain Text domain. Unique identifier for retrieving translated strings.
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* @return bool Whether textdomain was unloaded.
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*/
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function unload_textdomain( $domain ) {
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global $l10n;
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/**
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* Filter the text domain for loading translation.
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*
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* @since 3.0.0
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*
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* @param bool $override Whether to override unloading the text domain. 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 )
|
|
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] );
|
|
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 {@see get_locale()}.
|
|
* @return bool Whether the textdomain was loaded.
|
|
*/
|
|
function load_default_textdomain( $locale = null ) {
|
|
if ( null === $locale ) {
|
|
$locale = get_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 $return;
|
|
}
|
|
|
|
if ( is_admin() || defined( 'WP_INSTALLING' ) || ( defined( 'WP_REPAIRING' ) && WP_REPAIRING ) ) {
|
|
load_textdomain( 'default', WP_LANG_DIR . "/admin-$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;
|
|
}
|
|
|
|
/**
|
|
* Load 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
|
|
*
|
|
* @param string $domain Unique identifier for retrieving translated strings
|
|
* @param string $deprecated Use the $plugin_rel_path parameter instead.
|
|
* @param string $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 ) {
|
|
$locale = get_locale();
|
|
/**
|
|
* Filter 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', $locale, $domain );
|
|
|
|
if ( false !== $plugin_rel_path ) {
|
|
$path = WP_PLUGIN_DIR . '/' . trim( $plugin_rel_path, '/' );
|
|
} else if ( false !== $deprecated ) {
|
|
_deprecated_argument( __FUNCTION__, '2.7' );
|
|
$path = ABSPATH . trim( $deprecated, '/' );
|
|
} else {
|
|
$path = WP_PLUGIN_DIR;
|
|
}
|
|
|
|
// Load the textdomain according to the plugin first
|
|
$mofile = $domain . '-' . $locale . '.mo';
|
|
if ( $loaded = load_textdomain( $domain, $path . '/'. $mofile ) )
|
|
return $loaded;
|
|
|
|
// Otherwise, load from the languages directory
|
|
$mofile = WP_LANG_DIR . '/plugins/' . $mofile;
|
|
return load_textdomain( $domain, $mofile );
|
|
}
|
|
|
|
/**
|
|
* Load the translated strings for a plugin residing in the mu-plugins directory.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
|
|
* @param string $mu_plugin_rel_path 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', get_locale(), $domain );
|
|
$path = trailingslashit( WPMU_PLUGIN_DIR . '/' . ltrim( $mu_plugin_rel_path, '/' ) );
|
|
|
|
// Load the textdomain according to the plugin first
|
|
$mofile = $domain . '-' . $locale . '.mo';
|
|
if ( $loaded = load_textdomain( $domain, $path . $mofile ) )
|
|
return $loaded;
|
|
|
|
// Otherwise, load from the languages directory
|
|
$mofile = WP_LANG_DIR . '/plugins/' . $mofile;
|
|
return load_textdomain( $domain, $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
|
|
*
|
|
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
|
|
* @param string $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 ) {
|
|
$locale = get_locale();
|
|
/**
|
|
* Filter 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', $locale, $domain );
|
|
|
|
if ( ! $path )
|
|
$path = get_template_directory();
|
|
|
|
// Load the textdomain according to the theme
|
|
$mofile = untrailingslashit( $path ) . "/{$locale}.mo";
|
|
if ( $loaded = load_textdomain( $domain, $mofile ) )
|
|
return $loaded;
|
|
|
|
// Otherwise, load from the languages directory
|
|
$mofile = WP_LANG_DIR . "/themes/{$domain}-{$locale}.mo";
|
|
return load_textdomain( $domain, $mofile );
|
|
}
|
|
|
|
/**
|
|
* 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 $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 );
|
|
}
|
|
|
|
/**
|
|
* Return the Translations instance for a text domain.
|
|
*
|
|
* If there isn't one, returns empty Translations instance.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
|
|
* @return Translations A Translations instance.
|
|
*/
|
|
function get_translations_for_domain( $domain ) {
|
|
global $l10n;
|
|
if ( !isset( $l10n[$domain] ) ) {
|
|
$l10n[$domain] = new NOOP_Translations;
|
|
}
|
|
return $l10n[$domain];
|
|
}
|
|
|
|
/**
|
|
* Whether there are translations for the text domain.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @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 installs 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 installs
|
|
* won't suffer from that problem.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param string $name The role name.
|
|
* @return string Translated role name on success, original name on failure.
|
|
*/
|
|
function translate_user_role( $name ) {
|
|
return translate_with_gettext_context( before_last_bar($name), 'User role' );
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*
|
|
* @param string $dir A directory to search for language files.
|
|
* Default WP_LANG_DIR.
|
|
* @return array 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();
|
|
|
|
foreach( (array)glob( ( is_null( $dir) ? WP_LANG_DIR : $dir ) . '/*.mo' ) 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;
|
|
}
|
|
|
|
return $languages;
|
|
}
|
|
|
|
/**
|
|
* 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 ( $type !== 'themes' && $type !== 'plugins' && $type !== 'core' )
|
|
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( $file ) ) {
|
|
continue;
|
|
}
|
|
if ( substr( $file, -3 ) !== '.po' ) {
|
|
continue;
|
|
}
|
|
if ( ! preg_match( '/(?:(.+)-)?([A-Za-z_]{2,6}).po/', $file, $match ) ) {
|
|
continue;
|
|
}
|
|
if ( ! in_array( substr( $file, 0, -3 ) . '.mo', $files ) ) {
|
|
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 array PO file headers.
|
|
*/
|
|
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
|
|
*
|
|
* @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 empty.
|
|
* @type string $name Name attribute of the select element. Default empty.
|
|
* @type array $languages List of installed languages, contain only the locales.
|
|
* Default empty array.
|
|
* @type array $translations List of available translations. Default result of
|
|
* {@see wp_get_available_translations()}.
|
|
* @type string $selected Language which should be selected. Default empty.
|
|
* @type bool $show_available_translations Whether to show available translations. Default true.
|
|
* }
|
|
*/
|
|
function wp_dropdown_languages( $args = array() ) {
|
|
|
|
$args = wp_parse_args( $args, array(
|
|
'id' => '',
|
|
'name' => '',
|
|
'languages' => array(),
|
|
'translations' => array(),
|
|
'selected' => '',
|
|
'show_available_translations' => true,
|
|
) );
|
|
|
|
$translations = $args['translations'];
|
|
if ( empty( $translations ) ) {
|
|
require_once( ABSPATH . 'wp-admin/includes/translation-install.php' );
|
|
$translations = wp_get_available_translations();
|
|
}
|
|
|
|
/*
|
|
* $args['languages'] should only contain the locales. Find the locale in
|
|
* $translations to get the native name. Fall back to locale.
|
|
*/
|
|
$languages = array();
|
|
foreach ( $args['languages'] as $locale ) {
|
|
if ( isset( $translations[ $locale ] ) ) {
|
|
$translation = $translations[ $locale ];
|
|
$languages[] = array(
|
|
'language' => $translation['language'],
|
|
'native_name' => $translation['native_name'],
|
|
'lang' => $translation['iso'][1],
|
|
);
|
|
|
|
// Remove installed language from available translations.
|
|
unset( $translations[ $locale ] );
|
|
} else {
|
|
$languages[] = array(
|
|
'language' => $locale,
|
|
'native_name' => $locale,
|
|
'lang' => '',
|
|
);
|
|
}
|
|
}
|
|
|
|
printf( '<select name="%s" id="%s">', esc_attr( $args['name'] ), esc_attr( $args['id'] ) );
|
|
|
|
// Holds the HTML markup.
|
|
$structure = array();
|
|
|
|
// List installed languages.
|
|
if ( $args['show_available_translations'] ) {
|
|
$structure[] = '<optgroup label="' . esc_attr_x( 'Installed', 'translations' ) . '">';
|
|
}
|
|
$structure[] = '<option value="" lang="en" data-installed="1">English (United States)</option>';
|
|
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'], $args['selected'], false ),
|
|
esc_html( $language['native_name'] )
|
|
);
|
|
}
|
|
if ( $args['show_available_translations'] ) {
|
|
$structure[] = '</optgroup>';
|
|
}
|
|
|
|
// List available translations.
|
|
if ( ! empty( $translations ) && $args['show_available_translations'] ) {
|
|
$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( $translation['iso'][1] ),
|
|
selected( $translation['language'], $args['selected'], false ),
|
|
esc_html( $translation['native_name'] )
|
|
);
|
|
}
|
|
$structure[] = '</optgroup>';
|
|
}
|
|
|
|
echo join( "\n", $structure );
|
|
|
|
echo '</select>';
|
|
}
|