[Code 1.5.x] Missing Language String Detector 1.0

[[Unknown]]

I was actually writing this for a completely different reason (and even method...), but I thought this would be useful when writing modifications or new mod files.

Please note that while I am giving you the code, this is not released under the GPL.  Do not redistribute it.

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<?php
// Language file checker, version 1.0.
// Copyright 2003 by [Unknown].  All rights reserved.  Do not redistribute without permission.

$cwd = dirname(__FILE__);

// Change this to the language file you want to test.
$language_file = $cwd . '/english.lng';

define('YaBBSE', 1);

require ($language_file);

$sd = dir($cwd . '/Sources');
while ($entry = $sd->read())
{
   if (is_file($cwd . '/Sources/' . $entry) && $entry != 'index.php' && $entry != 'gpl.txt')
      $file_list[] = $cwd . '/Sources/' . $entry;
}
$sd->close();
$file_list[] = $cwd . '/SSI.php';
$file_list[] = $cwd . '/help.php';
$file_list[] = $cwd . '/Printpage.php';
$file_list[] = $cwd . '/Reminder.php';

$txt_used = array();
foreach ($file_list as $file)
{
   $full = implode('', file($file));
   preg_match_all('/\$txt\[(?:\')?([^\]]+?)(?:\')?\]/i', $full, $matches);

   foreach ($matches[1] as $text)
      if (!isset($txt[$text]))
      {
         if (!isset($txt_used[$text]))
            $txt_used[$text] = array(basename($file));
         elseif (!in_array(basename($file), $txt_used[$text]))
            $txt_used[$text][] = basename($file);
      }
}

ksort($txt_used);

echo '<pre>';
print_r($txt_used);
echo '</pre>';

?>

-[Unknown]