Added new (clean) yii boilerplate

framework/i18n/gettext/CGettextPoFile.php

@@ -0,0 +1,98 @@
+<?php
+/**
+ * CGettextPoFile class file.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.yiiframework.com/
+ * @copyright 2008-2013 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+/**
+ * CGettextPoFile represents a PO Gettext message file.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @package system.i18n.gettext
+ * @since 1.0
+ */
+class CGettextPoFile extends CGettextFile
+{
+	/**
+	 * Loads messages from a PO file.
+	 * @param string $file file path
+	 * @param string $context message context
+	 * @return array message translations (source message => translated message)
+	 */
+	public function load($file,$context)
+	{
+		$pattern='/(msgctxt\s+"(.*?(?<!\\\\))")?\s+'
+			.'msgid\s+((?:".*(?<!\\\\)"\s*)+)\s+'
+			.'msgstr\s+((?:".*(?<!\\\\)"\s*)+)/';
+		$matches=array();
+		$n=preg_match_all($pattern,file_get_contents($file),$matches);
+
+		$messages=array();
+		for($i=0; $i<$n; $i++)
+		{
+			if($matches[2][$i]===$context)
+			{
+				$id=$this->decode($matches[3][$i]);
+				$message=$this->decode($matches[4][$i]);
+				$messages[$id]=$message;
+			}
+		}
+		return $messages;
+	}
+
+	/**
+	 * Saves messages to a PO file.
+	 * @param string $file file path
+	 * @param array $messages message translations (message id => translated message).
+	 * Note if the message has a context, the message id must be prefixed with
+	 * the context with chr(4) as the separator.
+	 */
+	public function save($file,$messages)
+	{
+		$content='';
+		foreach($messages as $id=>$message)
+		{
+			if(($pos=strpos($id,chr(4)))!==false)
+			{
+				$content.='msgctxt "'.substr($id,0,$pos)."\"\n";
+				$id=substr($id,$pos+1);
+			}
+			$content.='msgid "'.$this->encode($id)."\"\n";
+			$content.='msgstr "'.$this->encode($message)."\"\n\n";
+		}
+		file_put_contents($file,$content);
+	}
+
+	/**
+	 * Encodes special characters in a message.
+	 * @param string $string message to be encoded
+	 * @return string the encoded message
+	 */
+	protected function encode($string)
+	{
+		return str_replace(
+			array('"',"\n","\t","\r"),
+			array('\\"',"\\n",'\\t','\\r'),
+			$string
+		);
+	}
+
+	/**
+	 * Decodes special characters in a message.
+	 * @param string $string message to be decoded
+	 * @return string the decoded message
+	 */
+	protected function decode($string)
+	{
+		$string=preg_replace(
+			array('/"\s+"/','/\\\\n/','/\\\\r/','/\\\\t/','/\\\\"/'),
+			array('',"\n","\r","\t",'"'),
+			$string
+		);
+		return substr(rtrim($string),1,-1);
+	}
+}