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568 lines
18 KiB
PHP
568 lines
18 KiB
PHP
<?php
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/**
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* Internationalization
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*
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* PHP versions 4 and 5
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package cake
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* @subpackage cake.cake.libs
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* @since CakePHP(tm) v 1.2.0.4116
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
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*/
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/**
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* Included libraries.
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*/
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App::import('Core', array('l10n', 'Multibyte'));
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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
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* @subpackage cake.cake.libs
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*/
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class I18n extends Object {
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/**
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* Instance of the I10n class for localization
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*
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* @var I10n
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* @access public
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*/
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var $l10n = null;
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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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* @access public
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*/
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var $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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* @access public
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*/
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var $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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* @access private
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*/
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var $__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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* @access private
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*/
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var $__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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* @access private
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*/
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var $__noLocale = false;
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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 array
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* @access private
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*/
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var $__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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* Return a static instance of the I18n class
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*
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* @return object I18n
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* @access public
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*/
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function &getInstance() {
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static $instance = array();
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if (!$instance) {
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$instance[0] =& new I18n();
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$instance[0]->l10n =& new L10n();
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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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* Can also be used like I18n::translate(); but only if the App::import('I18n'); has been used to load the class.
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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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* @param string $category Category The integer value of the category to use.
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* @param integer $count Count Count is used with $plural to choose the correct plural form.
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* @return string translated string.
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* @access public
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*/
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function translate($singular, $plural = null, $domain = null, $category = 6, $count = null) {
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$_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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$language = Configure::read('Config.language');
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if (!empty($_SESSION['Config']['language'])) {
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$language = $_SESSION['Config']['language'];
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}
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if (($_this->__lang && $_this->__lang !== $language) || !$_this->__lang) {
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$lang = $_this->l10n->get($language);
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$_this->__lang = $lang;
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}
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if (is_null($domain)) {
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$domain = 'default';
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}
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$_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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}
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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 $singular;
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}
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/**
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* Clears the domains internal data array. Useful for testing i18n.
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*
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* @return void
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*/
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function clear() {
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$self =& I18n::getInstance();
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$self->__domains = array();
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}
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/**
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* 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 integrer $n Number
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* @return integer plural match
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* @access private
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*/
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function __pluralGuess($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 $domain Domain to bind
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* @return string Domain binded
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* @access private
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*/
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function __bindTextDomain($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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$plugins = App::objects('plugin');
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if (!empty($plugins)) {
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foreach ($plugins as $plugin) {
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$plugin = Inflector::underscore($plugin);
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if ($plugin === $domain) {
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$searchPaths[] = App::pluginPath($plugin) . DS . 'locale' . DS;
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$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 $lang) {
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$file = $directory . $lang . DS . $this->category . DS . $domain;
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$localeDef = $directory . $lang . DS . $this->category;
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if ($core) {
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$app = $directory . $lang . DS . $this->category . DS . 'core';
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if (file_exists($fn = "$app.mo")) {
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$this->__loadMo($fn, $domain);
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$this->__noLocale = false;
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$merge[$domain][$this->__lang][$this->category] = $this->__domains[$domain][$this->__lang][$this->category];
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$core = null;
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} elseif (file_exists($fn = "$app.po") && ($f = fopen($fn, "r"))) {
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$this->__loadPo($f, $domain);
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$this->__noLocale = false;
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$merge[$domain][$this->__lang][$this->category] = $this->__domains[$domain][$this->__lang][$this->category];
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$core = null;
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}
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}
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if (file_exists($fn = "$file.mo")) {
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$this->__loadMo($fn, $domain);
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$this->__noLocale = false;
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break 2;
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} elseif (file_exists($fn = "$file.po") && ($f = fopen($fn, "r"))) {
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$this->__loadPo($f, $domain);
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$this->__noLocale = false;
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break 2;
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} elseif (is_file($localeDef) && ($f = fopen($localeDef, "r"))) {
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$this->__loadLocaleDefinition($f, $domain);
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$this->__noLocale = false;
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return $domain;
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}
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}
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}
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if (empty($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 = Set::pushDiff($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 for translation and sets the values for this translation in the var I18n::__domains
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*
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* @param resource $file Binary .mo file to load
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* @param string $domain Domain where to load file in
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* @access private
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*/
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function __loadMo($file, $domain) {
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$data = file_get_contents($file);
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if ($data) {
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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') && $version == 0) {
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for ($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", $msgstr);
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}
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$this->__domains[$domain][$this->__lang][$this->category][$msgid] = $msgstr;
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if (isset($msgid_plural)) {
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$this->__domains[$domain][$this->__lang][$this->category][$msgid_plural] =& $this->__domains[$domain][$this->__lang][$this->category][$msgid];
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}
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}
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}
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}
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}
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/**
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* Loads the text .po file for translation and sets the values for this translation in the var I18n::__domains
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*
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* @param resource $file Text .po file to load
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* @param string $domain Domain to load file in
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* @return array Binded domain elements
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* @access private
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*/
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function __loadPo($file, $domain) {
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$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;
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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] = "";
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$type = 7;
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} elseif (preg_match("/^\"(.*)\"$/i", $line, $regs) && $type == 7 && $translationKey) {
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$translations[$translationKey][$plural] .= stripcslashes($regs[1]);
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} elseif (preg_match("/msgstr[[:space:]]+\"(.+)\"$/i", $line, $regs) && $type == 2 && !$translationKey) {
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$header .= stripcslashes($regs[1]);
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$type = 5;
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} elseif (preg_match("/msgstr[[:space:]]+\"\"$/i", $line, $regs) && !$translationKey) {
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$header = "";
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$type = 5;
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} elseif (preg_match("/^\"(.*)\"$/i", $line, $regs) && $type == 5) {
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$header .= stripcslashes($regs[1]);
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} else {
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unset($translations[$translationKey]);
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$type = 0;
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$translationKey = "";
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$plural = 0;
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}
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} while (!feof($file));
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fclose($file);
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$merge[""] = $header;
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return $this->__domains[$domain][$this->__lang][$this->category] = array_merge($merge ,$translations);
|
|
}
|
|
|
|
/**
|
|
* Parses a locale definition file following the POSIX standard
|
|
*
|
|
* @param resource $file file handler
|
|
* @param string $domain Domain where locale definitions will be stored
|
|
* @return void
|
|
* @access private
|
|
*/
|
|
function __loadLocaleDefinition($file, $domain = null) {
|
|
$comment = '#';
|
|
$escape = '\\';
|
|
$currentToken = false;
|
|
$value = '';
|
|
while ($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 .= $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) {
|
|
$this->__domains[$domain][$this->__lang][$this->category][$currentToken] = array_pop($value);
|
|
} else {
|
|
$this->__domains[$domain][$this->__lang][$this->category][$currentToken] = $value;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Auxiliary function to parse a symbol from a locale definition file
|
|
*
|
|
* @param string $string Symbol to be parsed
|
|
* @return string parsed symbol
|
|
* @access private
|
|
*/
|
|
function __parseLiteralValue($string) {
|
|
$string = $string[1];
|
|
if (substr($string, 0, 2) === $this->__escape . 'x') {
|
|
$delimiter = $this->__escape . 'x';
|
|
return join('', array_map('chr', array_map('hexdec',array_filter(explode($delimiter, $string)))));
|
|
}
|
|
if (substr($string, 0, 2) === $this->__escape . 'd') {
|
|
$delimiter = $this->__escape . 'd';
|
|
return join('', array_map('chr', array_filter(explode($delimiter, $string))));
|
|
}
|
|
if ($string[0] === $this->__escape && isset($string[1]) && is_numeric($string[1])) {
|
|
$delimiter = $this->__escape;
|
|
return join('', array_map('chr', array_filter(explode($delimiter, $string))));
|
|
}
|
|
if (substr($string, 0, 3) === 'U00') {
|
|
$delimiter = 'U00';
|
|
return join('', array_map('chr', array_map('hexdec', array_filter(explode($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 $domain Domain where format is stored
|
|
* @return mixed translated format string if only value or array of translated strings for corresponding format.
|
|
* @access private
|
|
*/
|
|
function __translateTime($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;
|
|
}
|
|
}
|