Token.php

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<?php

/*
 * This file is part of Twig.
 *
 * (c) 2009 Fabien Potencier
 * (c) 2009 Armin Ronacher
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

class Twig_Token
{
    protected $value;
    protected $type;
    protected $lineno;

    const EOF_TYPE                  = -1;
    const TEXT_TYPE                 = 0;
    const BLOCK_START_TYPE          = 1;
    const VAR_START_TYPE            = 2;
    const BLOCK_END_TYPE            = 3;
    const VAR_END_TYPE              = 4;
    const NAME_TYPE                 = 5;
    const NUMBER_TYPE               = 6;
    const STRING_TYPE               = 7;
    const OPERATOR_TYPE             = 8;
    const PUNCTUATION_TYPE          = 9;
    const INTERPOLATION_START_TYPE  = 10;
    const INTERPOLATION_END_TYPE    = 11;

    public function __construct($type, $value, $lineno)
    {
        $this->type   = $type;
        $this->value  = $value;
        $this->lineno = $lineno;
    }

    public function __toString()
    {
        return sprintf('%s(%s)', self::typeToString($this->type, true, $this->lineno), $this->value);
    }

    public function test($type, $values = null)
    {
        if (null === $values && !is_int($type)) {
            $values = $type;
            $type = self::NAME_TYPE;
        }

        return ($this->type === $type) && (
            null === $values ||
            (is_array($values) && in_array($this->value, $values)) ||
            $this->value == $values
        );
    }

    public function getLine()
    {
        return $this->lineno;
    }

    public function getType()
    {
        return $this->type;
    }

    public function getValue()
    {
        return $this->value;
    }

    public static function typeToString($type, $short = false, $line = -1)
    {
        switch ($type) {
            case self::EOF_TYPE:
                $name = 'EOF_TYPE';
                break;
            case self::TEXT_TYPE:
                $name = 'TEXT_TYPE';
                break;
            case self::BLOCK_START_TYPE:
                $name = 'BLOCK_START_TYPE';
                break;
            case self::VAR_START_TYPE:
                $name = 'VAR_START_TYPE';
                break;
            case self::BLOCK_END_TYPE:
                $name = 'BLOCK_END_TYPE';
                break;
            case self::VAR_END_TYPE:
                $name = 'VAR_END_TYPE';
                break;
            case self::NAME_TYPE:
                $name = 'NAME_TYPE';
                break;
            case self::NUMBER_TYPE:
                $name = 'NUMBER_TYPE';
                break;
            case self::STRING_TYPE:
                $name = 'STRING_TYPE';
                break;
            case self::OPERATOR_TYPE:
                $name = 'OPERATOR_TYPE';
                break;
            case self::PUNCTUATION_TYPE:
                $name = 'PUNCTUATION_TYPE';
                break;
            case self::INTERPOLATION_START_TYPE:
                $name = 'INTERPOLATION_START_TYPE';
                break;
            case self::INTERPOLATION_END_TYPE:
                $name = 'INTERPOLATION_END_TYPE';
                break;
            default:
                throw new LogicException(sprintf('Token of type "%s" does not exist.', $type));
        }

        return $short ? $name : 'Twig_Token::'.$name;
    }

    public static function typeToEnglish($type, $line = -1)
    {
        switch ($type) {
            case self::EOF_TYPE:
                return 'end of template';
            case self::TEXT_TYPE:
                return 'text';
            case self::BLOCK_START_TYPE:
                return 'begin of statement block';
            case self::VAR_START_TYPE:
                return 'begin of print statement';
            case self::BLOCK_END_TYPE:
                return 'end of statement block';
            case self::VAR_END_TYPE:
                return 'end of print statement';
            case self::NAME_TYPE:
                return 'name';
            case self::NUMBER_TYPE:
                return 'number';
            case self::STRING_TYPE:
                return 'string';
            case self::OPERATOR_TYPE:
                return 'operator';
            case self::PUNCTUATION_TYPE:
                return 'punctuation';
            case self::INTERPOLATION_START_TYPE:
                return 'begin of string interpolation';
            case self::INTERPOLATION_END_TYPE:
                return 'end of string interpolation';
            default:
                throw new LogicException(sprintf('Token of type "%s" does not exist.', $type));
        }
    }
}