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2021 lines (1793 loc) · 67.2 KB
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<?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 User's ID or a WP_User object. Defaults to current user.
* @return string The locale of the user.
*/
function get_user_locale( $user = 0 ) {
$user_object = false;
if ( 0 === $user && function_exists( 'wp_get_current_user' ) ) {
$user_object = wp_get_current_user();
} elseif ( $user instanceof WP_User ) {
$user_object = $user;
} elseif ( $user && is_numeric( $user ) ) {
$user_object = get_user_by( 'id', $user );
}
if ( ! $user_object ) {
return get_locale();
}
$locale = $user_object->locale;
return $locale ? $locale : get_locale();
}
/**
* Determines the current locale desired for the request.
*
* @since 5.0.0
*
* @global string $pagenow The filename of the current screen.
* @global string $wp_local_package Locale code of the package.
*
* @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 ( $determined_locale && is_string( $determined_locale ) ) {
return $determined_locale;
}
if (
isset( $GLOBALS['pagenow'] ) && 'wp-login.php' === $GLOBALS['pagenow'] &&
( ! empty( $_GET['wp_lang'] ) || ! empty( $_COOKIE['wp_lang'] ) )
) {
if ( ! empty( $_GET['wp_lang'] ) ) {
$determined_locale = sanitize_locale_name( $_GET['wp_lang'] );
} else {
$determined_locale = sanitize_locale_name( $_COOKIE['wp_lang'] );
}
} elseif (
is_admin() ||
( isset( $_GET['_locale'] ) && 'user' === $_GET['_locale'] && wp_is_json_request() )
) {
$determined_locale = get_user_locale();
} elseif (
( ! empty( $_REQUEST['language'] ) || isset( $GLOBALS['wp_local_package'] ) )
&& wp_installing()
) {
if ( ! empty( $_REQUEST['language'] ) ) {
$determined_locale = sanitize_locale_name( $_REQUEST['language'] );
} else {
$determined_locale = $GLOBALS['wp_local_package'];
}
}
if ( ! $determined_locale ) {
$determined_locale = get_locale();
}
/**
* Filters the locale for the current request.
*
* @since 5.0.0
*
* @param string $determined_locale The locale.
*/
return apply_filters( 'determine_locale', $determined_locale );
}
/**
* Retrieves 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, $domain );
/**
* Filters text with its translation for a domain.
*
* The dynamic portion of the hook name, `$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;
}
/**
* Removes 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 $text A pipe-delimited string.
* @return string Either $text or everything before the last pipe.
*/
function before_last_bar( $text ) {
$last_bar = strrpos( $text, '|' );
if ( false === $last_bar ) {
return $text;
} else {
return substr( $text, 0, $last_bar );
}
}
/**
* Retrieves 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, $domain );
/**
* Filters text with its translation based on context information for a domain.
*
* The dynamic portion of the hook name, `$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;
}
/**
* Retrieves 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 );
}
/**
* Retrieves 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 ) );
}
/**
* Retrieves 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 ) );
}
/**
* Displays 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 );
}
/**
* Displays 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 ) );
}
/**
* Displays 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 ) );
}
/**
* Retrieves 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 );
}
/**
* Displays 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'.
*/
function _ex( $text, $context, $domain = 'default' ) {
echo _x( $text, $context, $domain );
}
/**
* Translates 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 ) );
}
/**
* Translates 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 int $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, $domain );
/**
* Filters the singular or plural form of a string for a domain.
*
* The dynamic portion of the hook name, `$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 int $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 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 Text domain. Unique identifier for retrieving translated strings.
*/
$translation = apply_filters( 'ngettext_with_context', $translation, $single, $plural, $number, $context, $domain );
/**
* Filters the singular or plural form of a string with gettext context for a domain.
*
* The dynamic portion of the hook name, `$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 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 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|null $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|null $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 returns 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 that is usually a return value from _n_noop() or _nx_noop().
*
* @type string $singular Singular form to be localized.
* @type string $plural Plural form to be localized.
* @type string|null $context Context information for the translators.
* @type string|null $domain Text domain.
* }
* @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 $singular 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 );
}
}
/**
* Loads 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 $domain
* and will be a MO object.
*
* @since 1.5.0
* @since 6.1.0 Added the `$locale` parameter.
*
* @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.
* @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
*
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param string $mofile Path to the .mo file.
* @param string $locale Optional. Locale. Default is the current locale.
* @return bool True on success, false on failure.
*/
function load_textdomain( $domain, $mofile, $locale = null ) {
/** @var WP_Textdomain_Registry $wp_textdomain_registry */
global $l10n, $l10n_unloaded, $wp_textdomain_registry;
$l10n_unloaded = (array) $l10n_unloaded;
if ( ! is_string( $domain ) ) {
return false;
}
/**
* Filters whether to short-circuit loading .mo file.
*
* Returning a non-null value from the filter will effectively short-circuit
* the loading, returning the passed value instead.
*
* @since 6.3.0
*
* @param bool|null $loaded The result of loading a .mo file. Default null.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param string $mofile Path to the MO file.
* @param string|null $locale Locale.
*/
$loaded = apply_filters( 'pre_load_textdomain', null, $domain, $mofile, $locale );
if ( null !== $loaded ) {
if ( true === $loaded ) {
unset( $l10n_unloaded[ $domain ] );
}
return $loaded;
}
/**
* Filters whether to override the .mo file loading.
*
* @since 2.9.0
* @since 6.2.0 Added the `$locale` parameter.
*
* @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.
* @param string|null $locale Locale.
*/
$plugin_override = apply_filters( 'override_load_textdomain', false, $domain, $mofile, $locale );
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 ( ! $locale ) {
$locale = determine_locale();
}
$i18n_controller = WP_Translation_Controller::get_instance();
// Ensures the correct locale is set as the current one, in case it was filtered.
$i18n_controller->set_locale( $locale );
/**
* Filters the preferred file format for translation files.
*
* Can be used to disable the use of PHP files for translations.
*
* @since 6.5.0
*
* @param string $preferred_format Preferred file format. Possible values: 'php', 'mo'. Default: 'php'.
* @param string $domain The text domain.
*/
$preferred_format = apply_filters( 'translation_file_format', 'php', $domain );
if ( ! in_array( $preferred_format, array( 'php', 'mo' ), true ) ) {
$preferred_format = 'php';
}
$translation_files = array();
if ( 'mo' !== $preferred_format ) {
$translation_files[] = substr_replace( $mofile, ".l10n.$preferred_format", - strlen( '.mo' ) );
}
$translation_files[] = $mofile;
foreach ( $translation_files as $file ) {
/**
* Filters the file path for loading translations for the given text domain.
*
* Similar to the {@see 'load_textdomain_mofile'} filter with the difference that
* the file path could be for an MO or PHP file.
*
* @since 6.5.0
* @since 6.6.0 Added the `$locale` parameter.
*
* @param string $file Path to the translation file to load.
* @param string $domain The text domain.
* @param string $locale The locale.
*/
$file = (string) apply_filters( 'load_translation_file', $file, $domain, $locale );
$success = $i18n_controller->load_file( $file, $domain, $locale );
if ( $success ) {
if ( isset( $l10n[ $domain ] ) && $l10n[ $domain ] instanceof MO ) {
$i18n_controller->load_file( $l10n[ $domain ]->get_filename(), $domain, $locale );
}
// Unset NOOP_Translations reference in get_translations_for_domain().
unset( $l10n[ $domain ] );
$l10n[ $domain ] = new WP_Translations( $i18n_controller, $domain );
$wp_textdomain_registry->set( $domain, $locale, dirname( $file ) );
return true;
}
}
return false;
}
/**
* Unloads translations for a text domain.
*
* @since 3.0.0
* @since 6.1.0 Added the `$reloadable` parameter.
*
* @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 bool $reloadable Whether the text domain can be loaded just-in-time again.
* @return bool Whether textdomain was unloaded.
*/
function unload_textdomain( $domain, $reloadable = false ) {
global $l10n, $l10n_unloaded;
$l10n_unloaded = (array) $l10n_unloaded;
/**
* Filters whether to override the text domain unloading.
*
* @since 3.0.0
* @since 6.1.0 Added the `$reloadable` parameter.
*
* @param bool $override Whether to override the text domain unloading. Default false.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param bool $reloadable Whether the text domain can be loaded just-in-time again.
*/
$plugin_override = apply_filters( 'override_unload_textdomain', false, $domain, $reloadable );
if ( $plugin_override ) {
if ( ! $reloadable ) {
$l10n_unloaded[ $domain ] = true;
}
return true;
}
/**
* Fires before the text domain is unloaded.
*
* @since 3.0.0
* @since 6.1.0 Added the `$reloadable` parameter.
*
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param bool $reloadable Whether the text domain can be loaded just-in-time again.
*/
do_action( 'unload_textdomain', $domain, $reloadable );
// Since multiple locales are supported, reloadable text domains don't actually need to be unloaded.
if ( ! $reloadable ) {
WP_Translation_Controller::get_instance()->unload_textdomain( $domain );
}
if ( isset( $l10n[ $domain ] ) ) {
if ( $l10n[ $domain ] instanceof NOOP_Translations ) {
unset( $l10n[ $domain ] );
return false;
}
unset( $l10n[ $domain ] );
if ( ! $reloadable ) {
$l10n_unloaded[ $domain ] = true;
}
return true;
}
return false;
}
/**
* Loads 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', true );
$return = load_textdomain( 'default', WP_LANG_DIR . "/$locale.mo", $locale );
if ( ( is_multisite() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) && ! file_exists( WP_LANG_DIR . "/admin-$locale.mo" ) ) {
load_textdomain( 'default', WP_LANG_DIR . "/ms-$locale.mo", $locale );
return $return;
}
if ( is_admin() || wp_installing() || ( defined( 'WP_REPAIRING' ) && WP_REPAIRING ) || doing_action( 'wp_maybe_auto_update' ) ) {
load_textdomain( 'default', WP_LANG_DIR . "/admin-$locale.mo", $locale );
}
if ( is_network_admin() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) {
load_textdomain( 'default', WP_LANG_DIR . "/admin-network-$locale.mo", $locale );
}
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.
* @since 6.7.0 Translations are no longer immediately loaded, but handed off to the just-in-time loading mechanism.
*
* @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
* @global array<string, WP_Translations|NOOP_Translations> $l10n An array of all currently loaded text domains.
*
* @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 ) {
/** @var WP_Textdomain_Registry $wp_textdomain_registry */