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<?php |
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namespace Ae\FeatureBundle\Twig\TokenParser; |
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use Ae\FeatureBundle\Twig\Node\FeatureNode; |
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use Twig_Error_Syntax; |
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use Twig_Token; |
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use Twig_TokenParser; |
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/** |
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* @author Carlo Forghieri <[email protected]> |
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*/ |
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class FeatureTokenParser extends Twig_TokenParser |
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{ |
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/** |
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* Parses a token and returns a node. |
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* |
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* @param Twig_Token $token A Twig_Token instance |
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* |
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* @return \Twig_NodeInterface A Twig_NodeInterface instance |
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*/ |
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public function parse(Twig_Token $token) |
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{ |
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$lineno = $token->getLine(); |
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$stream = $this->parser->getStream(); |
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$name = null; |
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$parent = null; |
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if (!$stream->test(Twig_Token::BLOCK_END_TYPE)) { |
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if ($stream->test(Twig_Token::STRING_TYPE)) { |
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// {% feature "name" %} |
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$name = $stream->next()->getValue(); |
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} elseif (!$stream->test(Twig_Token::BLOCK_END_TYPE)) { |
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throw new Twig_Error_Syntax('Unexpected token. Twig was looking for the "name" string.'); |
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} |
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if ($stream->test('from')) { |
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// {% feature "name" from "parent" %} |
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$stream->next(); |
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$parent = $stream->next()->getValue(); |
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} elseif (!$stream->test(Twig_Token::BLOCK_END_TYPE)) { |
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throw new Twig_Error_Syntax('Unexpected token. Twig was looking for the "from" keyword.'); |
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} |
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} |
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// {% feature %}...{% endfeature %} |
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$stream->expect(Twig_Token::BLOCK_END_TYPE); |
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$body = $this->parser->subparse([$this, 'decideFeatureFork']); |
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$else = null; |
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$end = false; |
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while (!$end) { |
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switch ($this->parser->getStream()->next()->getValue()) { |
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case 'else': |
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$stream->expect(Twig_Token::BLOCK_END_TYPE); |
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$else = $this->parser->subparse([$this, 'decideFeatureEnd']); |
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break; |
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case 'endfeature': |
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$end = true; |
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break; |
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default: |
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throw new Twig_Error_Syntax(sprintf('Unexpected end of template. Twig was looking for the following tags "else" or "endfeature" to close the "feature" block started at line %d)', $lineno), -1); |
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} |
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} |
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$stream->expect(Twig_Token::BLOCK_END_TYPE); |
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return new FeatureNode( |
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$name, |
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$parent, |
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$body, |
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$else, |
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$lineno, |
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$this->getTag() |
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); |
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} |
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public function decideFeatureFork(Twig_Token $token) |
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{ |
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return $token->test(['else', 'endfeature']); |
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} |
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public function decideFeatureEnd(Twig_Token $token) |
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{ |
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return $token->test(['endfeature']); |
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} |
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/** |
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* Gets the tag name associated with this token parser. |
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* |
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* @return string The tag name |
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*/ |
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public function getTag() |
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{ |
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return 'feature'; |
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} |
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} |
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adespresso /
FeatureBundle
