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<?php |
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namespace PSFS\base\extension; |
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/** |
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* Class AssetsTokenParser |
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* @package PSFS\base\extension |
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*/ |
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class AssetsTokenParser extends \Twig_TokenParser |
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{ |
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protected $type; |
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private $values = array(); |
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private $end = false; |
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/** |
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* @param string $type |
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*/ |
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public function __construct($type = 'js') |
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{ |
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$this->type = $type; |
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} |
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/** |
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* @param \Twig_Token $token |
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* @return AssetsNode|\Twig_Node |
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* @throws \Twig_Error_Syntax |
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*/ |
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public function parse(\Twig_Token $token) |
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{ |
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$hash = substr(md5($this->parser->getStream()->getSourceContext()->getPath()), 0, 8); |
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$name = $token->getValue(); |
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$this->extractTemplateNodes(); |
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$node = $this->findTemplateNode(); |
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return new AssetsNode($name, array('node' => $node, 'hash' => $hash), $token->getLine(), $this->getTag(), $this->type); |
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} |
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/** |
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* Método que devuelve el tag a buscar en la plantilla |
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* @return string |
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*/ |
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public function getTag() |
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{ |
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switch ($this->type) { |
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default: |
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case 'js': |
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$return = 'scripts'; |
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break; |
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case 'css': |
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$return = 'styles'; |
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break; |
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} |
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return $return; |
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} |
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/** |
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* @param \Twig_TokenStream $stream |
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* @return \Twig_TokenStream |
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* @throws \Twig_Error_Syntax |
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*/ |
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protected function checkTemplateLine(\Twig_TokenStream $stream) |
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{ |
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$value = $stream->getCurrent(); |
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switch ($value->getType()) { |
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case \Twig_Token::STRING_TYPE: |
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$this->values[] = $this->parser->getExpressionParser()->parseExpression(); |
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break; |
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case \Twig_Token::BLOCK_END_TYPE: |
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$this->end = true; |
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$stream->next(); |
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break; |
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default: |
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$stream->next(); |
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break; |
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} |
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return $stream; |
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} |
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/** |
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* @throws \Twig_Error_Syntax |
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*/ |
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protected function extractTemplateNodes() |
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{ |
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$stream = $this->parser->getStream(); |
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while (!$this->end) { |
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$stream = $this->checkTemplateLine($stream); |
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} |
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$stream->expect(\Twig_Token::BLOCK_START_TYPE); |
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$stream->expect(\Twig_Token::NAME_TYPE); |
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$stream->expect(\Twig_Token::BLOCK_END_TYPE); |
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} |
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/** |
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* @return mixed|null |
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*/ |
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protected function findTemplateNode() |
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{ |
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$node = null; |
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if (0 < count($this->values)) { |
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/** @var \Twig_Node_Expression|\Twig_Node_Expression_Conditional $value */ |
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foreach ($this->values as $value) { |
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list($tmp, $node) = $this->extractTmpAttribute($node, $value); |
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$node->setAttribute('value', $tmp); |
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} |
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} |
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return $node; |
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} |
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/** |
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* @param null $node |
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* @return array |
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*/ |
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protected function getTmpAttribute($node = null) |
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{ |
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$tmp = []; |
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if(null !== $node) { |
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$tmp = $node->getAttribute('value'); |
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if (!is_array($tmp)) { |
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$tmp = [$tmp]; |
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} |
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} |
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return $tmp; |
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} |
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/** |
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* Método |
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* @param \Twig_Node_Expression|\Twig_Node_Expression_Conditional|null $node |
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* @param \Twig_Node_Expression|\Twig_Node_Expression_Conditional|null $value |
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* |
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* @return array |
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*/ |
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protected function extractTmpAttribute($node = null, $value = null) |
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{ |
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$tmp = []; |
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if (null === $node) { |
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$node = $value; |
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} else { |
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$tmp = $this->getTmpAttribute($node); |
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} |
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if(null !== $node) { |
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$tmp[] = $value->getAttribute('value'); |
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} |
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1 |
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return [$tmp, $node]; |
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} |
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} |
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psfs /
core
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