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<?php |
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/** |
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* @author Gerard van Helden <[email protected]> |
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* @copyright Zicht Online <http://zicht.nl> |
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*/ |
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namespace Zicht\Bundle\FrameworkExtraBundle\Twig\ControlStructures; |
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use Twig_Error_Syntax; |
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use Twig_TokenParser; |
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use Twig_Token; |
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use Twig_Node; |
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/** |
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* Class SwitchTokenParser |
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* |
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* @package Zicht\Bundle\FrameworkExtraBundle\Twig\ControlStructures |
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*/ |
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class SwitchTokenParser extends Twig_TokenParser |
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{ |
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/** |
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* @{inheritDoc} |
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*/ |
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public function getTag() |
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{ |
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return 'switch'; |
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} |
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/** |
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* @{inheritDoc} |
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*/ |
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public function parse(Twig_Token $token) |
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{ |
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$lineno = $token->getLine(); |
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$switchExpr = $this->parser->getExpressionParser()->parseExpression(); |
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/** @var $stream Twig_TokenStream */ |
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$stream = $this->parser->getStream(); |
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$stream->expect(Twig_Token::BLOCK_END_TYPE); |
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// skip whitespace between switch and first case |
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while ($stream->test(Twig_Token::TEXT_TYPE)) { |
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if (trim($stream->getCurrent()->getValue()) != '') { |
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$content = $stream->getCurrent()->getValue(); |
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throw new Twig_Error_Syntax("Can not render content '$content' directly after switch", $stream->getCurrent()->getLine()); |
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} |
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$stream->next(); |
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} |
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$stream->expect(Twig_Token::BLOCK_START_TYPE); |
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$tests = array(); |
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while (!$stream->test('endswitch')) { |
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$token = $stream->expect(Twig_Token::NAME_TYPE, array('case', 'default')); |
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switch ($token->getValue()) { |
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case 'case': |
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$caseExpr = array(); |
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$caseExpr[] = $this->parser->getExpressionParser()->parseExpression(); |
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while ($stream->test(Twig_Token::OPERATOR_TYPE, ',')) { |
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$stream->next(); |
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$caseExpr[] = $this->parser->getExpressionParser()->parseExpression(); |
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} |
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break; |
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case 'default': |
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$caseExpr = null; |
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break; |
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} |
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$fallthrough = false; |
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if ($stream->test('fallthrough')) { |
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$stream->next(); |
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$fallthrough = true; |
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} |
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$stream->expect(Twig_Token::BLOCK_END_TYPE); |
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$body = $this->parser->subparse(array($this, 'decideSwitchFork')); |
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$tests[] = new SwitchCaseNode( |
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$body, |
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$caseExpr, |
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$fallthrough, |
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$token->getLine(), |
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$token->getValue() |
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); |
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} |
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$stream->expect('endswitch'); |
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$stream->expect(Twig_Token::BLOCK_END_TYPE); |
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return new SwitchNode(new Twig_Node($tests), $switchExpr, $lineno); |
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} |
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/** |
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* Checks if the token is part of the current control structure. |
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* |
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* @param Twig_Token $token |
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* @return mixed |
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*/ |
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public function decideSwitchFork($token) |
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{ |
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return $token->test(array('case', 'default', 'endswitch')); |
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} |
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} |
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zicht /
framework-extra-bundle
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