protected function doScan(Scanner $scan)
{
$start = $scan->getState();
$int = $scan->token();
$scan->next();
if ($scan->token() !== '.') {
$scan->setState($start);
$res = is_null($this->number) || $this->number == $int;
if ($res) {
$scan->getContext()->push($int);
// echo "$int | Parsed. Next token is not a point\n";
// } else {
// echo "$int | Next token is not a point. Doesn't match {$this->number}\n";
}
return $res;
}
if (!$scan->next() || $scan->type() !== Scanner::NUMBER) {
$scan->setState($start);
// echo "$int | Fail: not number after /\d+\./ \n";
return false;
}
$frac = $scan->token();
if (!is_null($this->number)) {
if ("{$int}.{$frac}" != $this->number) {
$scan->setState($start);
// echo "$int.$frac | Parsed float doesn't match {$this->number}\n";
return false;
}
}
$scan->getContext()->push("{$int}.{$frac}");
// echo "$int.$frac | Parsed\n";
return true;
}
public function testState()
{
$scan = new I\Scanner(new I\StringReader("1+2"), $ctx = new I\Context());
$start = $scan->getState();
$scan->next()->next()->next()->next();
$this->assertSame(I\Scanner::EOF, $scan->type());
$scan->setState($start);
$this->assertSame('1', $scan->next()->token());
$this->assertEquals(array(I\Scanner::CHAR, '+'), $scan->peek());
$this->assertEquals(array(I\Scanner::CHAR, '+'), $scan->peek());
}