{
return $this->internals[$this->S]->nullable === true;
}
// S is the first
public function firstSet()
{
return array($this->internals[$this->S]);
}
}
// if executing this file directly, run unit tests
if (__FILE__ !== $_SERVER["SCRIPT_FILENAME"]) {
return;
}
print "1A\n";
$parser = new StringParser("needle");
var_dump($parser->match("asdfneedle", 4) === array("j" => 10, "value" => "needle"));
try {
$parser->match("asdfneedle", 0);
var_dump(false);
} catch (ParseFailureException $e) {
var_dump(true);
}
print "2\n";
# improper anchoring
try {
$parser = new RegexParser("#boo#");
var_dump(false);
} catch (GrammarException $e) {
var_dump(true);
}
print "3A\n";
