regular expression

[billli]

Hi!

 

I'm trying to convert two wiki like tags to their html counter part.

 

ie) [[WikiPage]] => <a href="index.php?p=wiki/view&page=WikiPage" rel="nofollow" title="WikiPage">WikiPage</a>

and

[[WikiPage|Title]] => <a href="index.php?p=wiki/view&page=WikiPage" rel="nofollow" title="Title">Title</a>

 

	
	$string = htmlentities($string);
	$simple_search = array(
		'/\[\[(.*?!\|)\|(.*?)\]\]/is',
		'/\[\[(.*?)\]\]/is');

	$simple_replace = array(	
		'<a href="index.php?p=wiki/view&page=$1" rel="nofollow" title="$2">$2</a>',
		'<a href="index.php?p=wiki/view&page=$1" rel="nofollow" title="$1">$1</a>'
	);

 

Could anyone help me with the two regular expressions?

 

Thanks