mIRC snippets made by a friend of mine:

$twildtok() http://scriptsdb.org/comments.php?id=98

$regtok() http://scriptsdb.org/comments.php?id=99

$tregtok() http://scriptsdb.org/comments.php?id=100

The t* versions are used in an inverse manner where the paterns are the token string and you want to verify which patern matchs the given token.