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 testScan()
{
$scan = new I\Scanner(new I\StringReader("1+2"), $ctx = new I\Context());
$scan->next();
$this->assertSame('1', $scan->token());
$scan->next();
$this->assertSame('+', $scan->token());
$scan->next();
$this->assertSame('2', $scan->token());
}
protected function doScan(Scanner $scan)
{
$q = $scan->type();
$ok = false;
$escape = false;
$str = '';
while ($scan->next()) {
if ($escape) {
$escape = false;
} else {
if ($scan->token() === '\\') {
$escape = true;
continue;
}
if ($q === $scan->type()) {
$ok = true;
break;
}
}
$str .= $scan->token();
}
if ($ok && !$this->discard) {
$scan->getContext()->push($str);
}
return $ok;
}
