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					98 lines
				
				2.7 KiB
			
		
		
			
		
	
	
					98 lines
				
				2.7 KiB
			| 
											13 years ago
										 | <?php
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|  | /**
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|  |  * @link http://www.yiiframework.com/
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|  |  * @copyright Copyright (c) 2008 Yii Software LLC
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|  |  * @license http://www.yiiframework.com/license/
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|  |  */
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|  | 
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|  | namespace yii\i18n;
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|  | 
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|  | use Yii;
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|  | 
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|  | /**
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|  |  * GettextPoFile represents a PO Gettext message file.
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|  |  *
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|  |  * @author Qiang Xue <qiang.xue@gmail.com>
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|  |  * @since 2.0
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|  |  */
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|  | class GettextPoFile extends GettextFile
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|  | {
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|  | 	/**
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|  | 	 * Loads messages from a PO file.
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|  | 	 * @param string $filePath file path
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|  | 	 * @param string $context message context
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|  | 	 * @return array message translations. Array keys are source messages and array values are translated messages:
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|  | 	 * source message => translated message.
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|  | 	 */
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|  | 	public function load($filePath, $context)
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|  | 	{
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|  | 		$pattern = '/(msgctxt\s+"(.*?(?<!\\\\))")?\s+' // context
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|  | 			. 'msgid\s+((?:".*(?<!\\\\)"\s*)+)\s+' // message ID, i.e. original string
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|  | 			. 'msgstr\s+((?:".*(?<!\\\\)"\s*)+)/'; // translated string
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|  | 		$content = file_get_contents($filePath);
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|  | 		$matches = array();
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|  | 		$matchCount = preg_match_all($pattern, $content, $matches);
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|  | 
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|  | 		$messages = array();
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|  | 		for ($i = 0; $i < $matchCount; ++$i) {
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|  | 			if ($matches[2][$i] == $context) {
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|  | 				$id = $this->decode($matches[3][$i]);
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|  | 				$message = $this->decode($matches[4][$i]);
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|  | 				$messages[$id] = $message;
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|  | 			}
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|  | 		}
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|  | 		return $messages;
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|  | 	}
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|  | 
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|  | 	/**
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|  | 	 * Saves messages to a PO file.
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|  | 	 * @param string $filePath file path
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|  | 	 * @param array $messages message translations. Array keys are source messages and array values are
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|  | 	 * translated messages: source message => translated message. Note if the message has a context,
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|  | 	 * the message ID must be prefixed with the context with chr(4) as the separator.
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|  | 	 */
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|  | 	public function save($filePath, $messages)
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|  | 	{
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|  | 		$content = '';
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|  | 		foreach ($messages as $id => $message) {
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|  | 			$separatorPosition = strpos($id, chr(4));
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|  | 			if ($separatorPosition !== false) {
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|  | 				$content .= 'msgctxt "' . substr($id, 0, $separatorPosition) . "\"\n";
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|  | 				$id = substr($id, $separatorPosition + 1);
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|  | 			}
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|  | 			$content .= 'msgid "' . $this->encode($id) . "\"\n";
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|  | 			$content .= 'msgstr "' . $this->encode($message) . "\"\n\n";
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|  | 		}
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|  | 		file_put_contents($filePath, $content);
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|  | 	}
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|  | 
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|  | 	/**
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|  | 	 * Encodes special characters in a message.
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|  | 	 * @param string $string message to be encoded
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|  | 	 * @return string the encoded message
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|  | 	 */
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|  | 	protected function encode($string)
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|  | 	{
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|  | 		return str_replace(
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|  | 			array('"', "\n", "\t", "\r"),
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|  | 			array('\\"', '\\n', '\\t', '\\r'),
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|  | 			$string
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|  | 		);
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|  | 	}
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|  | 
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|  | 	/**
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|  | 	 * Decodes special characters in a message.
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|  | 	 * @param string $string message to be decoded
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|  | 	 * @return string the decoded message
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|  | 	 */
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|  | 	protected function decode($string)
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|  | 	{
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|  | 		$string = preg_replace(
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|  | 			array('/"\s+"/', '/\\\\n/', '/\\\\r/', '/\\\\t/', '/\\\\"/'),
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|  | 			array('', "\n", "\r", "\t", '"'),
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|  | 			$string
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|  | 		);
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|  | 		return substr(rtrim($string), 1, -1);
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|  | 	}
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|  | }
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