312 lines
9.4 KiB
PHP
312 lines
9.4 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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* Gets 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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* @uses apply_filters() Calls 'locale' hook on locale value.
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* @uses $locale Gets the locale stored in the global.
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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 $locale;
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if (isset($locale))
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return apply_filters( 'locale', $locale );
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// WPLANG is defined in wp-config.
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if (defined('WPLANG'))
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$locale = WPLANG;
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if (empty($locale))
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$locale = 'en_US';
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$locale = apply_filters('locale', $locale);
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return $locale;
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}
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/**
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* Retrieve the translated text.
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*
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* If the domain is set in the $l10n global, then the text is run through the
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* domain's translate method. After it is passed to the 'gettext' filter hook,
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* along with the untranslated text as the second parameter.
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*
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* If the domain is not set, the $text is just returned.
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*
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* @since 2.2.0
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* @uses $l10n Gets list of domain translated string (gettext_reader) objects.
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* @uses apply_filters() Calls 'gettext' on domain translated text
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* with the untranslated text as second parameter.
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*
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* @param string $text Text to translate.
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* @param string $domain Domain to retrieve the translated text.
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* @return string Translated text
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*/
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function translate($text, $domain = 'default') {
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global $l10n;
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if (isset($l10n[$domain]))
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return apply_filters('gettext', $l10n[$domain]->translate($text), $text);
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else
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return $text;
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}
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/**
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* Retrieve the translated text and strip context.
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*
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* If the domain is set in the $l10n global, then the text is run through the
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* domain's translate method. After it is passed to the 'gettext' filter hook,
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* along with the untranslated text as the second parameter.
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*
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* If the domain is not set, the $text is just returned.
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*
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* @since 2.5
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* @uses translate()
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*
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* @param string $text Text to translate
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* @param string $domain Domain to retrieve the translated text
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* @return string Translated text
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*/
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function translate_with_context($text, $domain = 'default') {
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$whole = translate($text, $domain);
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$last_bar = strrpos($whole, '|');
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if ( false == $last_bar ) {
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return $whole;
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} else {
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return substr($whole, 0, $last_bar);
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}
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}
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/**
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* Retrieves the translated string from the translate().
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*
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* @see translate() An alias of translate()
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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 $domain Optional. Domain to retrieve the translated text
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* @return string Translated text
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*/
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function __($text, $domain = 'default') {
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return translate($text, $domain);
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}
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/**
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* Displays the returned translated text from translate().
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*
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* @see translate() Echos returned translate() string
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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 $domain Optional. Domain to retrieve the translated text
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*/
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function _e($text, $domain = 'default') {
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echo translate($text, $domain);
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}
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/**
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* Retrieve context translated string.
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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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* In order to use the separate contexts, the _c() function is used and the
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* translatable string uses a pipe ('|') which has the context the string is in.
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*
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* When the translated string is returned, it is everything before the pipe, not
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* including the pipe character. If there is no pipe in the translated text then
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* everything is returned.
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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 $domain Optional. Domain to retrieve the translated text
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* @return string Translated context string without pipe
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*/
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function _c($text, $domain = 'default') {
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return translate_with_context($text, $domain);
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}
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/**
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* Retrieve the plural or single form based on the amount.
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*
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* If the domain is not set in the $l10n list, then a comparsion will be made
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* and either $plural or $single parameters returned.
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*
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* If the domain does exist, then the parameters $single, $plural, and $number
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* will first be passed to the 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 1.2.0
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* @uses $l10n Gets list of domain translated string (gettext_reader) objects
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* @uses apply_filters() Calls 'ngettext' hook on domains text returned,
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* along with $single, $plural, and $number parameters. Expected to return string.
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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. The domain identifier the text should be retrieved in
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* @return string Either $single or $plural translated text
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*/
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function __ngettext($single, $plural, $number, $domain = 'default') {
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global $l10n;
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if (isset($l10n[$domain])) {
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return apply_filters('ngettext', $l10n[$domain]->ngettext($single, $plural, $number), $single, $plural, $number);
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} else {
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if ($number != 1)
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return $plural;
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else
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return $single;
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}
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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 do keep structures with translatable plural strings and
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* use them later.
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*
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* Example:
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* $messages = array(
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* 'post' => ngettext_noop('%s post', '%s posts'),
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* 'page' => ngettext_noop('%s pages', '%s pages')
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* );
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* ...
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* $message = $messages[$type];
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* $usable_text = sprintf(__ngettext($message[0], $message[1], $count), $count);
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*
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* @since 2.5
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* @param $single Single form to be i18ned
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* @param $plural Plural form to be i18ned
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* @param $number Not used, here for compatibility with __ngettext, optional
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* @param $domain Not used, here for compatibility with __ngettext, optional
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* @return array array($single, $plural)
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*/
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function __ngettext_noop($single, $plural, $number=1, $domain = 'default') {
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return array($single, $plural);
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}
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/**
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* Loads MO file into the list of domains.
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*
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* If the domain already exists, the inclusion will fail. If the MO file is not
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* readable, the inclusion will fail.
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*
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* On success, the mofile will be placed in the $l10n global by $domain and will
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* be an gettext_reader object.
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*
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* @since 1.5.0
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* @uses $l10n Gets list of domain translated string (gettext_reader) objects
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* @uses CacheFileReader Reads the MO file
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* @uses gettext_reader Allows for retrieving translated strings
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*
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* @param string $domain Unique identifier for retrieving translated strings
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* @param string $mofile Path to the .mo file
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* @return null On failure returns null and also on success returns nothing.
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*/
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function load_textdomain($domain, $mofile) {
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global $l10n;
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if ( is_readable($mofile))
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$input = new CachedFileReader($mofile);
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else
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return;
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$gettext = new gettext_reader($input);
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if (isset($l10n[$domain])) {
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$l10n[$domain]->load_tables();
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$gettext->load_tables();
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$l10n[$domain]->cache_translations = array_merge($gettext->cache_translations, $l10n[$domain]->cache_translations);
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} else
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$l10n[$domain] = $gettext;
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unset($input, $gettext);
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}
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/**
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* Loads default translated strings based on locale.
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*
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* Loads the .mo file in WP_LANG_DIR constant path from WordPress root. The
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* translated (.mo) file is named based off of the locale.
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*
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* @since 1.5.0
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*/
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function load_default_textdomain() {
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$locale = get_locale();
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$mofile = WP_LANG_DIR . "/$locale.mo";
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load_textdomain('default', $mofile);
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}
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/**
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* Loads the plugin's translated strings.
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*
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* If the path is not given then it will be the root of the plugin directory.
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* The .mo file should be named based on the domain with a dash followed by a
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* dash, and then the locale exactly.
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*
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* @since 1.5.0
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*
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* @param string $domain Unique identifier for retrieving translated strings
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* @param string $abs_rel_path Optional. Relative path to ABSPATH of a folder,
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* where the .mo file resides. Deprecated, but still functional until 2.7
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* @param string $plugin_rel_path Optional. Relative path to WP_PLUGIN_DIR. This is the preferred argument to use. It takes precendence over $abs_rel_path
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*/
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function load_plugin_textdomain($domain, $abs_rel_path = false, $plugin_rel_path = false) {
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$locale = get_locale();
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if ( false !== $plugin_rel_path )
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$path = WP_PLUGIN_DIR . '/' . trim( $plugin_rel_path, '/');
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else if ( false !== $abs_rel_path)
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$path = ABSPATH . trim( $abs_rel_path, '/');
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else
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$path = WP_PLUGIN_DIR;
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$mofile = $path . '/'. $domain . '-' . $locale . '.mo';
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load_textdomain($domain, $mofile);
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}
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/**
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* Loads the theme's translated strings.
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*
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* If the current locale exists as a .mo file in the theme's root directory, it
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* will be included in the translated strings by the $domain.
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*
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* The .mo files must be named based on the locale exactly.
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*
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* @since 1.5.0
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*
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* @param string $domain Unique identifier for retrieving translated strings
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*/
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function load_theme_textdomain($domain) {
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$locale = get_locale();
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$mofile = get_template_directory() . "/$locale.mo";
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load_textdomain($domain, $mofile);
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}
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?>
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