631 lines
19 KiB
PHP
631 lines
19 KiB
PHP
<?php
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/**
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* Internationalization
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package Cake.I18n
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* @since CakePHP(tm) v 1.2.0.4116
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* @license http://www.opensource.org/licenses/mit-license.php MIT License
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*/
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App::uses('CakePlugin', 'Core');
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App::uses('L10n', 'I18n');
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App::uses('Multibyte', 'I18n');
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App::uses('CakeSession', 'Model/Datasource');
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/**
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* I18n handles translation of Text and time format strings.
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*
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* @package Cake.I18n
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*/
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class I18n {
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/**
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* Instance of the L10n class for localization
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*
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* @var L10n
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*/
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public $l10n = null;
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/**
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* Default domain of translation
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*
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* @var string
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*/
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public static $defaultDomain = 'default';
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/**
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* Current domain of translation
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*
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* @var string
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*/
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public $domain = null;
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/**
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* Current category of translation
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*
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* @var string
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*/
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public $category = 'LC_MESSAGES';
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/**
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* Current language used for translations
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*
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* @var string
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*/
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protected $_lang = null;
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/**
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* Translation strings for a specific domain read from the .mo or .po files
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*
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* @var array
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*/
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protected $_domains = array();
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/**
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* Set to true when I18N::_bindTextDomain() is called for the first time.
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* If a translation file is found it is set to false again
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*
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* @var boolean
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*/
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protected $_noLocale = false;
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/**
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* Translation categories
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*
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* @var array
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*/
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protected $_categories = array(
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'LC_ALL', 'LC_COLLATE', 'LC_CTYPE', 'LC_MONETARY', 'LC_NUMERIC', 'LC_TIME', 'LC_MESSAGES'
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);
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/**
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* Escape string
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*
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* @var string
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*/
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protected $_escape = null;
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/**
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* Constructor, use I18n::getInstance() to get the i18n translation object.
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*/
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public function __construct() {
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$this->l10n = new L10n();
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}
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/**
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* Return a static instance of the I18n class
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*
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* @return I18n
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*/
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public static function getInstance() {
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static $instance = array();
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if (!$instance) {
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$instance[0] = new I18n();
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}
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return $instance[0];
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}
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/**
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* Used by the translation functions in basics.php
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* Returns a translated string based on current language and translation files stored in locale folder
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*
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* @param string $singular String to translate
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* @param string $plural Plural string (if any)
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* @param string $domain Domain The domain of the translation. Domains are often used by plugin translations.
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* If null, the default domain will be used.
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* @param string $category Category The integer value of the category to use.
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* @param integer $count Count Count is used with $plural to choose the correct plural form.
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* @param string $language Language to translate string to.
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* If null it checks for language in session followed by Config.language configuration variable.
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* @return string translated string.
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* @throws CakeException When '' is provided as a domain.
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*/
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public static function translate($singular, $plural = null, $domain = null, $category = 6, $count = null, $language = null) {
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$_this = I18n::getInstance();
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if (strpos($singular, "\r\n") !== false) {
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$singular = str_replace("\r\n", "\n", $singular);
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}
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if ($plural !== null && strpos($plural, "\r\n") !== false) {
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$plural = str_replace("\r\n", "\n", $plural);
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}
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if (is_numeric($category)) {
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$_this->category = $_this->_categories[$category];
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}
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if (empty($language)) {
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if (CakeSession::started()) {
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$language = CakeSession::read('Config.language');
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}
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if (empty($language)) {
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$language = Configure::read('Config.language');
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}
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}
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if (($_this->_lang && $_this->_lang !== $language) || !$_this->_lang) {
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$lang = $_this->l10n->get($language);
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$_this->_lang = $lang;
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}
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if ($domain === null) {
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$domain = self::$defaultDomain;
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}
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if ($domain === '') {
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throw new CakeException(__d('cake_dev', 'You cannot use "" as a domain.'));
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}
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$_this->domain = $domain . '_' . $_this->l10n->lang;
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if (!isset($_this->_domains[$domain][$_this->_lang])) {
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$_this->_domains[$domain][$_this->_lang] = Cache::read($_this->domain, '_cake_core_');
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}
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if (!isset($_this->_domains[$domain][$_this->_lang][$_this->category])) {
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$_this->_bindTextDomain($domain);
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Cache::write($_this->domain, $_this->_domains[$domain][$_this->_lang], '_cake_core_');
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}
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if ($_this->category === 'LC_TIME') {
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return $_this->_translateTime($singular, $domain);
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}
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if (!isset($count)) {
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$plurals = 0;
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} elseif (!empty($_this->_domains[$domain][$_this->_lang][$_this->category]["%plural-c"]) && $_this->_noLocale === false) {
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$header = $_this->_domains[$domain][$_this->_lang][$_this->category]["%plural-c"];
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$plurals = $_this->_pluralGuess($header, $count);
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} else {
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if ($count != 1) {
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$plurals = 1;
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} else {
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$plurals = 0;
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}
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}
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if (!empty($_this->_domains[$domain][$_this->_lang][$_this->category][$singular])) {
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if (($trans = $_this->_domains[$domain][$_this->_lang][$_this->category][$singular]) || ($plurals) && ($trans = $_this->_domains[$domain][$_this->_lang][$_this->category][$plural])) {
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if (is_array($trans)) {
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if (isset($trans[$plurals])) {
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$trans = $trans[$plurals];
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} else {
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trigger_error(
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__d('cake_dev',
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'Missing plural form translation for "%s" in "%s" domain, "%s" locale. ' .
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' Check your po file for correct plurals and valid Plural-Forms header.',
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$singular,
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$domain,
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$_this->_lang
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),
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E_USER_WARNING
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);
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$trans = $trans[0];
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}
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}
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if (strlen($trans)) {
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return $trans;
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}
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}
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}
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if (!empty($plurals)) {
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return $plural;
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}
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return $singular;
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}
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/**
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* Clears the domains internal data array. Useful for testing i18n.
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*
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* @return void
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*/
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public static function clear() {
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$self = I18n::getInstance();
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$self->_domains = array();
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}
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/**
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* Get the loaded domains cache.
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*
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* @return array
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*/
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public static function domains() {
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$self = I18n::getInstance();
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return $self->_domains;
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}
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/**
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* Attempts to find the plural form of a string.
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*
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* @param string $header Type
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* @param integer $n Number
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* @return integer plural match
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*/
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protected function _pluralGuess($header, $n) {
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if (!is_string($header) || $header === "nplurals=1;plural=0;" || !isset($header[0])) {
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return 0;
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}
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if ($header === "nplurals=2;plural=n!=1;") {
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return $n != 1 ? 1 : 0;
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} elseif ($header === "nplurals=2;plural=n>1;") {
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return $n > 1 ? 1 : 0;
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}
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if (strpos($header, "plurals=3")) {
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if (strpos($header, "100!=11")) {
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if (strpos($header, "10<=4")) {
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return $n % 10 == 1 && $n % 100 != 11 ? 0 : ($n % 10 >= 2 && $n % 10 <= 4 && ($n % 100 < 10 || $n % 100 >= 20) ? 1 : 2);
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} elseif (strpos($header, "100<10")) {
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return $n % 10 == 1 && $n % 100 != 11 ? 0 : ($n % 10 >= 2 && ($n % 100 < 10 || $n % 100 >= 20) ? 1 : 2);
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}
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return $n % 10 == 1 && $n % 100 != 11 ? 0 : ($n != 0 ? 1 : 2);
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} elseif (strpos($header, "n==2")) {
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return $n == 1 ? 0 : ($n == 2 ? 1 : 2);
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} elseif (strpos($header, "n==0")) {
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return $n == 1 ? 0 : ($n == 0 || ($n % 100 > 0 && $n % 100 < 20) ? 1 : 2);
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} elseif (strpos($header, "n>=2")) {
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return $n == 1 ? 0 : ($n >= 2 && $n <= 4 ? 1 : 2);
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} elseif (strpos($header, "10>=2")) {
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return $n == 1 ? 0 : ($n % 10 >= 2 && $n % 10 <= 4 && ($n % 100 < 10 || $n % 100 >= 20) ? 1 : 2);
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}
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return $n % 10 == 1 ? 0 : ($n % 10 == 2 ? 1 : 2);
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} elseif (strpos($header, "plurals=4")) {
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if (strpos($header, "100==2")) {
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return $n % 100 == 1 ? 0 : ($n % 100 == 2 ? 1 : ($n % 100 == 3 || $n % 100 == 4 ? 2 : 3));
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} elseif (strpos($header, "n>=3")) {
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return $n == 1 ? 0 : ($n == 2 ? 1 : ($n == 0 || ($n >= 3 && $n <= 10) ? 2 : 3));
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} elseif (strpos($header, "100>=1")) {
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return $n == 1 ? 0 : ($n == 0 || ($n % 100 >= 1 && $n % 100 <= 10) ? 1 : ($n % 100 >= 11 && $n % 100 <= 20 ? 2 : 3));
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}
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} elseif (strpos($header, "plurals=5")) {
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return $n == 1 ? 0 : ($n == 2 ? 1 : ($n >= 3 && $n <= 6 ? 2 : ($n >= 7 && $n <= 10 ? 3 : 4)));
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}
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}
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/**
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* Binds the given domain to a file in the specified directory.
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*
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* @param string $domain Domain to bind
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* @return string Domain binded
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*/
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protected function _bindTextDomain($domain) {
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$this->_noLocale = true;
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$core = true;
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$merge = array();
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$searchPaths = App::path('locales');
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$plugins = CakePlugin::loaded();
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if (!empty($plugins)) {
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foreach ($plugins as $plugin) {
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$pluginDomain = Inflector::underscore($plugin);
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if ($pluginDomain === $domain) {
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$searchPaths[] = CakePlugin::path($plugin) . 'Locale' . DS;
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$searchPaths = array_reverse($searchPaths);
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break;
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}
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}
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}
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foreach ($searchPaths as $directory) {
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foreach ($this->l10n->languagePath as $lang) {
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$localeDef = $directory . $lang . DS . $this->category;
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if (is_file($localeDef)) {
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$definitions = self::loadLocaleDefinition($localeDef);
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if ($definitions !== false) {
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$this->_domains[$domain][$this->_lang][$this->category] = $definitions;
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$this->_noLocale = false;
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return $domain;
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}
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}
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if ($core) {
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$app = $directory . $lang . DS . $this->category . DS . 'core';
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$translations = false;
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if (is_file($app . '.mo')) {
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$translations = self::loadMo($app . '.mo');
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}
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if ($translations === false && is_file($app . '.po')) {
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$translations = self::loadPo($app . '.po');
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}
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if ($translations !== false) {
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$this->_domains[$domain][$this->_lang][$this->category] = $translations;
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$merge[$domain][$this->_lang][$this->category] = $this->_domains[$domain][$this->_lang][$this->category];
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$this->_noLocale = false;
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$core = null;
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}
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}
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$file = $directory . $lang . DS . $this->category . DS . $domain;
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$translations = false;
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if (is_file($file . '.mo')) {
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$translations = self::loadMo($file . '.mo');
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}
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if ($translations === false && is_file($file . '.po')) {
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$translations = self::loadPo($file . '.po');
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}
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if ($translations !== false) {
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$this->_domains[$domain][$this->_lang][$this->category] = $translations;
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$this->_noLocale = false;
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break 2;
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}
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}
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}
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if (empty($this->_domains[$domain][$this->_lang][$this->category])) {
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$this->_domains[$domain][$this->_lang][$this->category] = array();
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return $domain;
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}
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if (isset($this->_domains[$domain][$this->_lang][$this->category][""])) {
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$head = $this->_domains[$domain][$this->_lang][$this->category][""];
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foreach (explode("\n", $head) as $line) {
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$header = strtok($line, ':');
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$line = trim(strtok("\n"));
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$this->_domains[$domain][$this->_lang][$this->category]["%po-header"][strtolower($header)] = $line;
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}
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if (isset($this->_domains[$domain][$this->_lang][$this->category]["%po-header"]["plural-forms"])) {
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$switch = preg_replace("/(?:[() {}\\[\\]^\\s*\\]]+)/", "", $this->_domains[$domain][$this->_lang][$this->category]["%po-header"]["plural-forms"]);
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$this->_domains[$domain][$this->_lang][$this->category]["%plural-c"] = $switch;
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unset($this->_domains[$domain][$this->_lang][$this->category]["%po-header"]);
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}
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$this->_domains = Hash::mergeDiff($this->_domains, $merge);
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if (isset($this->_domains[$domain][$this->_lang][$this->category][null])) {
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unset($this->_domains[$domain][$this->_lang][$this->category][null]);
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}
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}
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return $domain;
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}
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/**
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* Loads the binary .mo file and returns array of translations
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*
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* @param string $filename Binary .mo file to load
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* @return mixed Array of translations on success or false on failure
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*/
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public static function loadMo($filename) {
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$translations = false;
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// @codingStandardsIgnoreStart
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// Binary files extracted makes non-standard local variables
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if ($data = file_get_contents($filename)) {
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$translations = array();
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$header = substr($data, 0, 20);
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$header = unpack('L1magic/L1version/L1count/L1o_msg/L1o_trn', $header);
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extract($header);
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if ((dechex($magic) === '950412de' || dechex($magic) === 'ffffffff950412de') && !$version) {
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for ($n = 0; $n < $count; $n++) {
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$r = unpack("L1len/L1offs", substr($data, $o_msg + $n * 8, 8));
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$msgid = substr($data, $r["offs"], $r["len"]);
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unset($msgid_plural);
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if (strpos($msgid, "\000")) {
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list($msgid, $msgid_plural) = explode("\000", $msgid);
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}
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$r = unpack("L1len/L1offs", substr($data, $o_trn + $n * 8, 8));
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$msgstr = substr($data, $r["offs"], $r["len"]);
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if (strpos($msgstr, "\000")) {
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$msgstr = explode("\000", $msgstr);
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}
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$translations[$msgid] = $msgstr;
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if (isset($msgid_plural)) {
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$translations[$msgid_plural] =& $translations[$msgid];
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}
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}
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}
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}
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// @codingStandardsIgnoreEnd
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return $translations;
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}
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|
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/**
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* Loads the text .po file and returns array of translations
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*
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* @param string $filename Text .po file to load
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* @return mixed Array of translations on success or false on failure
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*/
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public static function loadPo($filename) {
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if (!$file = fopen($filename, 'r')) {
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return false;
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}
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$type = 0;
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$translations = array();
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$translationKey = '';
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$plural = 0;
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$header = '';
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do {
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$line = trim(fgets($file));
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if ($line === '' || $line[0] === '#') {
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continue;
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}
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if (preg_match("/msgid[[:space:]]+\"(.+)\"$/i", $line, $regs)) {
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$type = 1;
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$translationKey = stripcslashes($regs[1]);
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} elseif (preg_match("/msgid[[:space:]]+\"\"$/i", $line, $regs)) {
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$type = 2;
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$translationKey = '';
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} elseif (preg_match("/^\"(.*)\"$/i", $line, $regs) && ($type == 1 || $type == 2 || $type == 3)) {
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$type = 3;
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$translationKey .= stripcslashes($regs[1]);
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} elseif (preg_match("/msgstr[[:space:]]+\"(.+)\"$/i", $line, $regs) && ($type == 1 || $type == 3) && $translationKey) {
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$translations[$translationKey] = stripcslashes($regs[1]);
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$type = 4;
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} elseif (preg_match("/msgstr[[:space:]]+\"\"$/i", $line, $regs) && ($type == 1 || $type == 3) && $translationKey) {
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$type = 4;
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$translations[$translationKey] = '';
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} elseif (preg_match("/^\"(.*)\"$/i", $line, $regs) && $type == 4 && $translationKey) {
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$translations[$translationKey] .= stripcslashes($regs[1]);
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} elseif (preg_match("/msgid_plural[[:space:]]+\".*\"$/i", $line, $regs)) {
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$type = 6;
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} elseif (preg_match("/^\"(.*)\"$/i", $line, $regs) && $type == 6 && $translationKey) {
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$type = 6;
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} elseif (preg_match("/msgstr\[(\d+)\][[:space:]]+\"(.+)\"$/i", $line, $regs) && ($type == 6 || $type == 7) && $translationKey) {
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$plural = $regs[1];
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$translations[$translationKey][$plural] = stripcslashes($regs[2]);
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$type = 7;
|
|
} elseif (preg_match("/msgstr\[(\d+)\][[:space:]]+\"\"$/i", $line, $regs) && ($type == 6 || $type == 7) && $translationKey) {
|
|
$plural = $regs[1];
|
|
$translations[$translationKey][$plural] = '';
|
|
$type = 7;
|
|
} elseif (preg_match("/^\"(.*)\"$/i", $line, $regs) && $type == 7 && $translationKey) {
|
|
$translations[$translationKey][$plural] .= stripcslashes($regs[1]);
|
|
} elseif (preg_match("/msgstr[[:space:]]+\"(.+)\"$/i", $line, $regs) && $type == 2 && !$translationKey) {
|
|
$header .= stripcslashes($regs[1]);
|
|
$type = 5;
|
|
} elseif (preg_match("/msgstr[[:space:]]+\"\"$/i", $line, $regs) && !$translationKey) {
|
|
$header = '';
|
|
$type = 5;
|
|
} elseif (preg_match("/^\"(.*)\"$/i", $line, $regs) && $type == 5) {
|
|
$header .= stripcslashes($regs[1]);
|
|
} else {
|
|
unset($translations[$translationKey]);
|
|
$type = 0;
|
|
$translationKey = '';
|
|
$plural = 0;
|
|
}
|
|
} while (!feof($file));
|
|
fclose($file);
|
|
|
|
$merge[''] = $header;
|
|
return array_merge($merge, $translations);
|
|
}
|
|
|
|
/**
|
|
* Parses a locale definition file following the POSIX standard
|
|
*
|
|
* @param string $filename Locale definition filename
|
|
* @return mixed Array of definitions on success or false on failure
|
|
*/
|
|
public static function loadLocaleDefinition($filename) {
|
|
if (!$file = fopen($filename, 'r')) {
|
|
return false;
|
|
}
|
|
|
|
$definitions = array();
|
|
$comment = '#';
|
|
$escape = '\\';
|
|
$currentToken = false;
|
|
$value = '';
|
|
$_this = I18n::getInstance();
|
|
while ($line = fgets($file)) {
|
|
$line = trim($line);
|
|
if (empty($line) || $line[0] === $comment) {
|
|
continue;
|
|
}
|
|
$parts = preg_split("/[[:space:]]+/", $line);
|
|
if ($parts[0] === 'comment_char') {
|
|
$comment = $parts[1];
|
|
continue;
|
|
}
|
|
if ($parts[0] === 'escape_char') {
|
|
$escape = $parts[1];
|
|
continue;
|
|
}
|
|
$count = count($parts);
|
|
if ($count === 2) {
|
|
$currentToken = $parts[0];
|
|
$value = $parts[1];
|
|
} elseif ($count === 1) {
|
|
$value = is_array($value) ? $parts[0] : $value . $parts[0];
|
|
} else {
|
|
continue;
|
|
}
|
|
|
|
$len = strlen($value) - 1;
|
|
if ($value[$len] === $escape) {
|
|
$value = substr($value, 0, $len);
|
|
continue;
|
|
}
|
|
|
|
$mustEscape = array($escape . ',', $escape . ';', $escape . '<', $escape . '>', $escape . $escape);
|
|
$replacements = array_map('crc32', $mustEscape);
|
|
$value = str_replace($mustEscape, $replacements, $value);
|
|
$value = explode(';', $value);
|
|
$_this->_escape = $escape;
|
|
foreach ($value as $i => $val) {
|
|
$val = trim($val, '"');
|
|
$val = preg_replace_callback('/(?:<)?(.[^>]*)(?:>)?/', array(&$_this, '_parseLiteralValue'), $val);
|
|
$val = str_replace($replacements, $mustEscape, $val);
|
|
$value[$i] = $val;
|
|
}
|
|
if (count($value) === 1) {
|
|
$definitions[$currentToken] = array_pop($value);
|
|
} else {
|
|
$definitions[$currentToken] = $value;
|
|
}
|
|
}
|
|
|
|
return $definitions;
|
|
}
|
|
|
|
/**
|
|
* Auxiliary function to parse a symbol from a locale definition file
|
|
*
|
|
* @param string $string Symbol to be parsed
|
|
* @return string parsed symbol
|
|
*/
|
|
protected function _parseLiteralValue($string) {
|
|
$string = $string[1];
|
|
if (substr($string, 0, 2) === $this->_escape . 'x') {
|
|
$delimiter = $this->_escape . 'x';
|
|
return implode('', array_map('chr', array_map('hexdec', array_filter(explode($delimiter, $string)))));
|
|
}
|
|
if (substr($string, 0, 2) === $this->_escape . 'd') {
|
|
$delimiter = $this->_escape . 'd';
|
|
return implode('', array_map('chr', array_filter(explode($delimiter, $string))));
|
|
}
|
|
if ($string[0] === $this->_escape && isset($string[1]) && is_numeric($string[1])) {
|
|
$delimiter = $this->_escape;
|
|
return implode('', array_map('chr', array_filter(explode($delimiter, $string))));
|
|
}
|
|
if (substr($string, 0, 3) === 'U00') {
|
|
$delimiter = 'U00';
|
|
return implode('', array_map('chr', array_map('hexdec', array_filter(explode($delimiter, $string)))));
|
|
}
|
|
if (preg_match('/U([0-9a-fA-F]{4})/', $string, $match)) {
|
|
return Multibyte::ascii(array(hexdec($match[1])));
|
|
}
|
|
return $string;
|
|
}
|
|
|
|
/**
|
|
* Returns a Time format definition from corresponding domain
|
|
*
|
|
* @param string $format Format to be translated
|
|
* @param string $domain Domain where format is stored
|
|
* @return mixed translated format string if only value or array of translated strings for corresponding format.
|
|
*/
|
|
protected function _translateTime($format, $domain) {
|
|
if (!empty($this->_domains[$domain][$this->_lang]['LC_TIME'][$format])) {
|
|
if (($trans = $this->_domains[$domain][$this->_lang][$this->category][$format])) {
|
|
return $trans;
|
|
}
|
|
}
|
|
return $format;
|
|
}
|
|
|
|
}
|