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<?php
/**
* Piwik - Open source web analytics
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html Gpl v3 or later
* @version $Id$
*
* @package Piwik
*/
/**
* @package Piwik
*/
class Piwik_Translate
{
static private $instance = null;
/**
* Returns singleton
*
* @return Piwik_Translate
*/
static public function getInstance()
{
if (self::$instance == null)
{
$c = __CLASS__;
self::$instance = new $c();
}
return self::$instance;
}
private function __construct()
{
$translations = array();
$language = $this->getFallbackLanguageToLoad();
require_once "lang/" . $language .".php";
$this->addTranslationArray($translations);
$language = $this->getLanguageToLoad();
require_once "lang/" . $language .".php";
$this->addTranslationArray($translations);
setlocale(LC_ALL, $GLOBALS['Piwik_translations']['General_Locale']);
}
public function addTranslationArray($translation)
{
if(!isset($GLOBALS['Piwik_translations']))
{
$GLOBALS['Piwik_translations'] = array();
}
// we could check that no string overlap here
$GLOBALS['Piwik_translations'] = array_merge($GLOBALS['Piwik_translations'], $translation);
}
/**
* @return string the language filename prefix, eg "en" for english
* @throws exception if the language set in the config file is not a valid filename
*/
public function getLanguageToLoad()
{
$language = Zend_Registry::get('config')->Language->current;
if( Piwik_Common::isValidFilename($language))
{
return $language;
}
else
{
throw new Exception("The language selected ('$language') is not a valid language file ");
}
}
protected function getFallbackLanguageToLoad()
{
return Zend_Registry::get('config')->Language->fallback;
}
/**
* Generate javascript translations array
*
* @return string containing javascript code with translations array (including <script> tag)
*
*/
public function getJavascriptTranslations($moduleList)
{
if( !$moduleList )
{
return '';
}
$js = 'var translations = {';
$moduleRegex = '#^(';
foreach($moduleList as $module)
{
$moduleRegex .= $module.'|';
}
$moduleRegex = substr($moduleRegex, 0, -1);
$moduleRegex .= ')_([^_]+)_js$#i';
foreach($GLOBALS['Piwik_translations'] as $key => $value)
{
$matches = array();
if( preg_match($moduleRegex,$key,$matches) ) {
$varName = $matches[1].'_'.$matches[2];
$varValue = $value;
$js .= "".$varName.": '".str_replace("'","\\'",$varValue)."',";
}
$matches = null;
}
$js = substr($js,0,-1);
$js .= '};';
$js .= 'function _pk_translate(tvar, str) { '.
'var s = str; if( typeof(translations[tvar]) != \'undefined\' ) s = translations[tvar];'.
'return s;}';
return $js;
}
}
function Piwik_Translate($index)
{
if(isset($GLOBALS['Piwik_translations'][$index]))
{
return $GLOBALS['Piwik_translations'][$index];
}
throw new Exception("Translation string '$index' not available.");
}
/**
* Returns translated string or given message if translation is not found.
* This function does not throw any exception. Use it to translate exceptions.
*
* @param string Translation string index
* @return string
*/
function Piwik_TranslateException($message)
{
try {
return Piwik_Translate($message);
}
catch(Exception $e) {
return $message;
}
}
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