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lib/symfony/i18n/Gettext/PO.php

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+<?php
+/**
+ * TGettext_PO class file.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the BSD License.
+ *
+ * Copyright(c) 2004 by Qiang Xue. All rights reserved.
+ *
+ * To contact the author write to {@link mailto:qiang.xue@gmail.com Qiang Xue}
+ * The latest version of PRADO can be obtained from:
+ * {@link http://prado.sourceforge.net/}
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Revision: 1415 $  $Date: 2006-06-11 10:33:51 +0200 (Sun, 11 Jun 2006) $
+ * @package System.I18N.core
+ */
+
+// +----------------------------------------------------------------------+
+// | PEAR :: File :: Gettext :: PO                                        |
+// +----------------------------------------------------------------------+
+// | This source file is subject to version 3.0 of the PHP license,       |
+// | that is available at http://www.php.net/license/3_0.txt              |
+// | If you did not receive a copy of the PHP license and are unable      |
+// | to obtain it through the world-wide-web, please send a note to       |
+// | license@php.net so we can mail you a copy immediately.               |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 2004 Michael Wallner <mike@iworks.at>                  |
+// +----------------------------------------------------------------------+
+//
+// $Id: PO.php 1415 2006-06-11 08:33:51Z fabien $
+
+/**
+ * File::Gettext::PO
+ * 
+ * @author      Michael Wallner <mike@php.net>
+ * @license     PHP License
+ */
+ 
+require_once dirname(__FILE__).'/TGettext.class.php';
+
+/** 
+ * File_Gettext_PO
+ *
+ * GNU PO file reader and writer.
+ * 
+ * @author      Michael Wallner <mike@php.net>
+ * @version     $Revision: 1415 $
+ * @access      public
+ * @package System.I18N.core 
+ */
+class TGettext_PO extends TGettext
+{
+    /**
+     * Constructor
+     *
+     * @access  public
+     * @return  object      File_Gettext_PO
+     * @param   string      path to GNU PO file
+     */
+    function TGettext_PO($file = '')
+    {
+        $this->file = $file;
+    }
+
+    /**
+     * Load PO file
+     *
+     * @access  public
+     * @return  mixed   Returns true on success or PEAR_Error on failure.
+     * @param   string  $file
+     */
+    function load($file = null)
+    {
+        if (!isset($file)) {
+            $file = $this->file;
+        }
+        
+        // load file
+        if (!$contents = @file($file)) {
+            return false;
+        }
+        $contents = implode('', $contents);
+        
+        // match all msgid/msgstr entries
+        $matched = preg_match_all(
+            '/(msgid\s+("([^"]|\\\\")*?"\s*)+)\s+' .
+            '(msgstr\s+("([^"]|\\\\")*?"\s*)+)/',
+            $contents, $matches
+        );
+        unset($contents);
+        
+        if (!$matched) {
+            return false;
+        }
+        
+        // get all msgids and msgtrs
+        for ($i = 0; $i < $matched; $i++) {
+            $msgid = preg_replace(
+                '/\s*msgid\s*"(.*)"\s*/s', '\\1', $matches[1][$i]);
+            $msgstr= preg_replace(
+                '/\s*msgstr\s*"(.*)"\s*/s', '\\1', $matches[4][$i]);
+            $this->strings[parent::prepare($msgid)] = parent::prepare($msgstr);
+        }
+        
+        // check for meta info
+        if (isset($this->strings[''])) {
+            $this->meta = parent::meta2array($this->strings['']);
+            unset($this->strings['']);
+        }
+        
+        return true;
+    }
+    
+    /**
+     * Save PO file
+     *
+     * @access  public
+     * @return  mixed   Returns true on success or PEAR_Error on failure.
+     * @param   string  $file
+     */
+    function save($file = null)
+    {
+        if (!isset($file)) {
+            $file = $this->file;
+        }
+
+        // open PO file
+        if (!is_resource($fh = @fopen($file, 'w'))) {
+            return false;
+        }
+
+        // lock PO file exclusively
+        if (!flock($fh, LOCK_EX)) {
+            fclose($fh);
+            return false;
+        }
+        // write meta info
+        if (count($this->meta)) {
+            $meta = 'msgid ""' . "\nmsgstr " . '""' . "\n";
+            foreach ($this->meta as $k => $v) {
+                $meta .= '"' . $k . ': ' . $v . '\n"' . "\n";
+            }
+            fwrite($fh, $meta . "\n");
+        }
+        // write strings
+        foreach ($this->strings as $o => $t) {
+            fwrite($fh,
+                'msgid "'  . parent::prepare($o, true) . '"' . "\n" .
+                'msgstr "' . parent::prepare($t, true) . '"' . "\n\n"
+            );
+        }
+        
+        //done
+        @flock($fh, LOCK_UN);
+        @fclose($fh);
+        return true;
+    }
+}