function testOtag()
{
$sc = new StringScanner("{{foo}}{{bla}}");
$res = $sc->scan("{{");
$this->assertEqual($res, "{{");
$this->assertEqual($sc->rest(), "foo}}{{bla}}");
$res = $sc->scan("[#^\\/=!<>^{]");
$this->assertEqual($res, null);
$this->assertEqual($sc->rest(), "foo}}{{bla}}");
}