/**
* {@inheritdoc}
*/
public function lex(Input $in, Lexer $lexer)
{
$cur = $in->current();
if ('+' === $cur || '-' === $cur) {
$in->next();
}
$isHex = false;
$digits = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'];
// range('0', '9')? lolphp
if ('0' === $in->current() && in_array($in->peek(), ['x', 'X'])) {
$in->next();
$in->next();
$isHex = true;
$digits = array_merge($digits, range('a', 'f'), range('A', 'F'));
}
$this->consumeDigits($in, $digits);
$char = $in->current();
if ($isHex || '.' !== $char) {
$this->checkNumberFinished($char, $in);
$lexer->emit(Token::INT_VALUE);
} elseif ('.' === $char) {
$in->next();
$this->consumeDigits($in, $digits);
$this->checkNumberFinished($in->peek(), $in);
$lexer->emit(TOKEN::FLOAT_VALUE);
}
return $this->previousState();
}
/**
* {@inheritdoc}
*/
public function lex(Input $in, Lexer $lexer)
{
while (true) {
$char = $in->current();
if (null === $char) {
throw new SyntaxError('Unexpected EOF at ' . $in->context());
}
if (!$this->isWhitespace($char)) {
break;
}
$in->next();
}
$cur = $in->current();
switch ($cur) {
case '(':
return new OpenList($this);
break;
case ')':
return new CloseList($this->previousState());
break;
case '"':
return new InsideString('"', $this);
break;
case "'":
return new InsideString("'", $this);
break;
case '+':
case '-':
$next = $in->peek();
if ($this->isWhitespace($next) || $this->isCloseList($next)) {
return new InsideIdent($this);
break;
}
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
return new InsideNumber($this);
break;
case null:
throw new SyntaxError('Unexpected EOF at ' . $in->context());
break;
default:
return new InsideIdent($this);
break;
}
}
