/**
* Builds the global regular expression
* Must be called once when the scripts loads
*/
static function setRegexp()
{
$regexp = "";
foreach (Token::$tokenObjects as $tokenObject) {
// echo "hou ";
$reg = $tokenObject->regexp;
$regexp .= "|{$reg}";
}
self::$regexp = substr($regexp, 1);
// removes the first pipe
}
