<?php
/*
* This file is part of the Assetic package, an OpenSky project.
*
* (c) 2010-2014 OpenSky Project Inc
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Assetic\Extension\Twig;
use Assetic\Asset\AssetInterface;
use Assetic\Factory\AssetFactory;
class AsseticTokenParser extends \Twig_TokenParser
{
private $factory;
private $tag;
private $output;
private $single;
private $extensions;
/**
* Constructor.
*
* Attributes can be added to the tag by passing names as the options
* array. These values, if found, will be passed to the factory and node.
*
* @param AssetFactory $factory The asset factory
* @param string $tag The tag name
* @param string $output The default output string
* @param Boolean $single Whether to force a single asset
* @param array $extensions Additional attribute names to look for
*/
public function __construct(AssetFactory $factory, $tag, $output, $single = false, array $extensions = array())
{
$this->factory = $factory;
$this->tag = $tag;
$this->output = $output;
$this->single = $single;
$this->extensions = $extensions;
}
public function parse(\Twig_Token $token)
{
$inputs = array();
$filters = array();
$name = null;
$attributes = array(
'output' => $this->output,
'var_name' => 'asset_url',
'vars' => array(),
);
$stream = $this->parser->getStream();
while (!$stream->test(\Twig_Token::BLOCK_END_TYPE)) {
if ($stream->test(\Twig_Token::STRING_TYPE)) {
// '@jquery', 'js/src/core/*', 'js/src/extra.js'
$inputs[] = $stream->next()->getValue();
} elseif ($stream->test(\Twig_Token::NAME_TYPE, 'filter')) {
// filter='yui_js'
$stream->next();
$stream->expect(\Twig_Token::OPERATOR_TYPE, '=');
$filters = array_merge($filters, array_filter(array_map('trim', explode(',', $stream->expect(\Twig_Token::STRING_TYPE)->getValue()))));
} elseif ($stream->test(\Twig_Token::NAME_TYPE, 'output')) {
// output='js/packed/*.js' OR output='js/core.js'
$stream->next();
$stream->expect(\Twig_Token::OPERATOR_TYPE, '=');
$attributes['output'] = $stream->expect(\Twig_Token::STRING_TYPE)->getValue();
} elseif ($stream->test(\Twig_Token::NAME_TYPE, 'name')) {
// name='core_js'
$stream->next();
$stream->expect(\Twig_Token::OPERATOR_TYPE, '=');
$name = $stream->expect(\Twig_Token::STRING_TYPE)->getValue();
} elseif ($stream->test(\Twig_Token::NAME_TYPE, 'as')) {
// as='the_url'
$stream->next();
$stream->expect(\Twig_Token::OPERATOR_TYPE, '=');
$attributes['var_name'] = $stream->expect(\Twig_Token::STRING_TYPE)->getValue();
} elseif ($stream->test(\Twig_Token::NAME_TYPE, 'debug')) {
// debug=true
$stream->next();
$stream->expect(\Twig_Token::OPERATOR_TYPE, '=');
$attributes['debug'] = 'true' == $stream->expect(\Twig_Token::NAME_TYPE, array('true', 'false'))->getValue();
} elseif ($stream->test(\Twig_Token::NAME_TYPE, 'combine')) {
// combine=true
$stream->next();
$stream->expect(\Twig_Token::OPERATOR_TYPE, '=');
$attributes['combine'] = 'true' == $stream->expect(\Twig_Token::NAME_TYPE, array('true', 'false'))->getValue();
} elseif ($stream->test(\Twig_Token::NAME_TYPE, 'vars')) {
// vars=['locale','browser']
$stream->next();
$stream->expect(\Twig_Token::OPERATOR_TYPE, '=');
$stream->expect(\Twig_Token::PUNCTUATION_TYPE, '[');
while ($stream->test(\Twig_Token::STRING_TYPE)) {
$attributes['vars'][] = $stream->expect(\Twig_Token::STRING_TYPE)->getValue();
if (!$stream->test(\Twig_Token::PUNCTUATION_TYPE, ',')) {
break;
}
$stream->next();
}
$stream->expect(\Twig_Token::PUNCTUATION_TYPE, ']');
} elseif ($stream->test(\Twig_Token::NAME_TYPE, $this->extensions)) {
// an arbitrary configured attribute
$key = $stream->next()->getValue();
$stream->expect(\Twig_Token::OPERATOR_TYPE, '=');
$attributes[$key] = $stream->expect(\Twig_Token::STRING_TYPE)->getValue();
} else {
$token = $stream->getCurrent();
throw new \Twig_Error_Syntax(sprintf('Unexpected token "%s" of value "%s"', \Twig_Token::typeToEnglish($token->getType()), $token->getValue()), $token->getLine(), $stream->getFilename());
}
}
$stream->expect(\Twig_Token::BLOCK_END_TYPE);
$body = $this->parser->subparse(array($this, 'testEndTag'), true);
$stream->expect(\Twig_Token::BLOCK_END_TYPE);
if ($this->single && 1 < count($inputs)) {
$inputs = array_slice($inputs, -1);
}
if (!$name) {
$name = $this->factory->generateAssetName($inputs, $filters, $attributes);
}
$asset = $this->factory->createAsset($inputs, $filters, $attributes + array('name' => $name));
return $this->createBodyNode($asset, $body, $inputs, $filters, $name, $attributes, $token->getLine(), $this->getTag());
}
public function getTag()
{
return $this->tag;
}
public function testEndTag(\Twig_Token $token)
{
return $token->test(array('end'.$this->getTag()));
}
/**
* @param AssetInterface $asset
* @param \Twig_Node $body
* @param array $inputs
* @param array $filters
* @param string $name
* @param array $attributes
* @param int $lineno
* @param string $tag
*
* @return \Twig_Node
*/
protected function createBodyNode(AssetInterface $asset, \Twig_Node $body, array $inputs, array $filters, $name, array $attributes = array(), $lineno = 0, $tag = null)
{
$reflector = new \ReflectionMethod($this, 'createNode');
if (__CLASS__ !== $reflector->getDeclaringClass()->name) {
@trigger_error(sprintf('Overwriting %s::createNode is deprecated since 1.3. Overwrite %s instead.', __CLASS__, __METHOD__), E_USER_DEPRECATED);
return $this->createNode($asset, $body, $inputs, $filters, $name, $attributes, $lineno, $tag);
}
return new AsseticNode($asset, $body, $inputs, $filters, $name, $attributes, $lineno, $tag);
}
/**
* @param AssetInterface $asset
* @param \Twig_NodeInterface $body
* @param array $inputs
* @param array $filters
* @param string $name
* @param array $attributes
* @param int $lineno
* @param string $tag
*
* @return \Twig_Node
*
* @deprecated since 1.3.0, to be removed in 2.0. Use createBodyNode instead.
*/
protected function createNode(AssetInterface $asset, \Twig_NodeInterface $body, array $inputs, array $filters, $name, array $attributes = array(), $lineno = 0, $tag = null)
{
@trigger_error(sprintf('The %s method is deprecated since 1.3 and will be removed in 2.0. Use createBodyNode instead.', __METHOD__), E_USER_DEPRECATED);
if (!$body instanceof \Twig_Node) {
throw new \InvalidArgumentException('The body must be a Twig_Node. Custom implementations of Twig_NodeInterface are not supported.');
}
return new AsseticNode($asset, $body, $inputs, $filters, $name, $attributes, $lineno, $tag);
}
}