Accept pretty much bloody anything inside a [url] tag as a legal URL.

include/bbcode.php

@@ -15,14 +15,14 @@ function bbcode($Text) {
 	$Text = nl2br($Text);
 
 	// Set up the parameters for a URL search string
-	$URLSearchString = " a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%";
+	$URLSearchString = "^\[\]";
 	// Set up the parameters for a MAIL search string
-	$MAILSearchString = $URLSearchString . " a-zA-Z0-9\.@";
+	$MAILSearchString = $URLSearchString;
 
 	// Perform URL Search
 
 
-	$Text = preg_replace("/([^\]\=]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%]+)/", ' <a href="$2" target="external-link">$2</a>', $Text);
+	$Text = preg_replace("/([^\]\=]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%\$\!]+)/", ' <a href="$2" target="external-link">$2</a>', $Text);
 
 	$Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/", '<a href="$1" target="external-link">$1</a>', $Text);
 	$Text = preg_replace("(\[url\=([$URLSearchString]*)\](.+?)\[/url\])", '<a href="$1" target="external-link">$2</a>', $Text);