function format($str, $type = '')
{
$tmp = new format($str, true, true);
$tmp->html(array('b', 'i', 'u', 's'));
if ($type == 'e' || $type == 'p') {
//$tmp->parse('#\[tex\](.*?)\[/tex\]#se', '"[img]http://chart.apis.google.com/chart?cht=tx&chl=".rawurlencode("\\1")."[/img]"');
$tmp->tag('img', '<img src="\\1" alt="" />');
$tmp->attribute('img', '<img src="\\2" alt="\\1" />');
$tmp->tag('url', '<a href="\\1" target="_blank">\\1</a>');
$tmp->attribute('url', '<a href="\\1" target="_blank">\\2</a>');
$tmp->tag('link', '<a href="\\1">\\1</a>');
$tmp->attribute('link', '<a href="\\1">\\2</a>');
$tmp->attribute('acronym', '<acronym title="\\1">\\2</acronym>');
$tmp->tag('center', '<div align="center">\\1</div>');
$tmp->attribute('color', '<font color="\\1">\\2</font> ');
} elseif ($type == 'c') {
$tmp->parse('#https?://[^.\\s]+\\.[^\\s]+#ix', '<a href="\\0" target="_blank">\\0</a>');
$tmp->parse('#(\\s|\\A)\\#([0-9]+)#', '<a href="#comment-\\2">\\0</a>');
} elseif ($type == 'cf') {
$tmp->parse('#https?://[^.\\s]+\\.[^\\s]+#ix', '<a href="\\0" target="_blank">\\0</a>');
}
return $tmp->result();
}
