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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.
*/
/**
* Represents a Token.
*
* @package twig
* @author Fabien Potencier <fabien@symfony.com>
*/
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;
/**
* Constructor.
*
* @param integer $type The type of the token
* @param string $value The token value
* @param integer $lineno The line position in the source
*/
public function __construct($type, $value, $lineno)
{
$this->type = $type;
$this->value = $value;
$this->lineno = $lineno;
}
/**
* Returns a string representation of the token.
*
* @return string A string representation of the token
*/
public function __toString()
{
return sprintf('%s(%s)', self::typeToString($this->type, true, $this->lineno), $this->value);
}
/**
* Tests the current token for a type and/or a value.
*
* Parameters may be:
* * just type
* * type and value (or array of possible values)
* * just value (or array of possible values) (NAME_TYPE is used as type)
*
* @param array|integer $type The type to test
* @param array|string|null $values The token value
*
* @return Boolean
*/
public function test($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
);
}
/**
* Gets the line.
*
* @return integer The source line
*/
public function getLine()
{
return $this->lineno;
}
/**
* Gets the token type.
*
* @return integer The token type
*/
public function getType()
{
return $this->type;
}
/**
* Gets the token value.
*
* @return string The token value
*/
public function getValue()
{
return $this->value;
}
/**
* Returns the constant representation (internal) of a given type.
*
* @param integer $type The type as an integer
* @param Boolean $short Whether to return a short representation or not
* @param integer $line The code line
*
* @return string The string representation
*/
static public function typeToString($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 Twig_Error_Syntax(sprintf('Token of type "%s" does not exist.', $type), $line);
}
return $short ? $name : 'Twig_Token::'.$name;
}
/**
* Returns the english representation of a given type.
*
* @param integer $type The type as an integer
* @param integer $line The code line
*
* @return string The string representation
*/
static public function typeToEnglish($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 Twig_Error_Syntax(sprintf('Token of type "%s" does not exist.', $type), $line);
}
}
}