<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\ExpressionLanguage;
/**
* Represents a Token.
* @author Fabien Potencier <fabien@symfony.com>
class Token
{
public $value;
public $type;
public $cursor;
const EOF_TYPE = 'end of expression';
const NAME_TYPE = 'name';
const NUMBER_TYPE = 'number';
const STRING_TYPE = 'string';
const OPERATOR_TYPE = 'operator';
const PUNCTUATION_TYPE = 'punctuation';
* @param string $type The type of the token (self::*_TYPE)
* @param string|int|float|null $value The token value
* @param int $cursor The cursor position in the source
public function __construct(string $type, $value, ?int $cursor)
$this->type = $type;
$this->value = $value;
$this->cursor = $cursor;
}
* Returns a string representation of the token.
* @return string A string representation of the token
public function __toString()
return sprintf('%3d %-11s %s', $this->cursor, strtoupper($this->type), $this->value);
* Tests the current token for a type and/or a value.
* @param string $type The type to test
* @return bool
public function test($type, string $value = null)
return $this->type === $type && (null === $value || $this->value == $value);