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