<?PHP
  Uses('pages', 'nav');
  
  
  $GLOBALS['messages'] = array();
  
  if($GLOBALS['config']['language'] != 'en') @include('lang/' . $GLOBALS['config']['language'] . '.inc.php');
  
  function subst_page($data, $env) {
    $data = preg_replace('((^|[^\\{])\\{\\{\\$config:([^\\{\\}]+?)\\}\\})e', '\'$1\' . $GLOBALS[\'config\'][\'$2\']', $data);
    $data = preg_replace('((^|[^\\{])\\{\\{\\$([^:\\{\\}]+?)\\}\\})e', '\'$1\' . $env[\'$2\']', $data);
    
    $data = preg_replace('((^|[^\\{])\\{\\{\\$nav:(.+?)\\}\\})e', '\'$1\' . subst_page($GLOBALS[\'nav\']->ParseNav(\'$2\'), $env)', $data);
    $data = preg_replace('((^|[^\\{])\\{\\{\\$title:(.+?)\\}\\})e', '\'$1\' . $GLOBALS[\'pages\']->GetTitle(\'$2\')', $data);
    $data = preg_replace_callback('((^|[^\\{])\\{\\{\\$page:\\$editor:(.+?)\\}\\})', create_function('$match', '$ret = $GLOBALS[\'pages\']->GetEditor($match[2], $GLOBALS[\'links\']->GetNeonLink($match[2])); return $match[1] . subst_page($ret[\'content\'], $page);'), $data);
    $data = preg_replace_callback('((^|[^\\{])\\{\\{\\$page:(.+?)\\}\\})', create_function('$match', '$ret = $GLOBALS[\'pages\']->GetPage($match[2]); return $match[1] . subst_page($ret[\'content\'], $env);'), $data);
    
    return $data;
  }
  
  function Subst($data, $env = array()) {
    $data = subst_page($data, $env);
    
    $subst = array_map(create_function('$key', 'return \'(\\{\\{\' . $key . \'\\}\\})\';'), array_keys($GLOBALS['messages']));
    $data = preg_replace($subst, $GLOBALS['messages'], $data);
    
    return preg_replace(array('((^|[^\\{])\\{\\{([^\\{]|$))', '((^|[^\\}])\\}\\}([^\\}]|$))', '((\\{)\\{(\\{))', '((\\})\\}(\\}))'), '$1$2', $data);
  }
?>