vendor/twig/twig/src/TokenParser/ApplyTokenParser.php line 33

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  1. <?php
  3. /*
  4. * This file is part of Twig.
  5. *
  6. * (c) Fabien Potencier
  7. *
  8. * For the full copyright and license information, please view the LICENSE
  9. * file that was distributed with this source code.
  10. */
  12. namespace Twig\TokenParser;
  14. use Twig\ExpressionParser\Infix\FilterExpressionParser;
  15. use Twig\Node\Expression\Variable\LocalVariable;
  16. use Twig\Node\Node;
  17. use Twig\Node\Nodes;
  18. use Twig\Node\PrintNode;
  19. use Twig\Node\SetNode;
  20. use Twig\Token;
  22. /**
  23. * Applies filters on a section of a template.
  24. *
  25. * {% apply upper %}
  26. * This text becomes uppercase
  27. * {% endapply %}
  28. *
  29. * @internal
  30. */
  31. final class ApplyTokenParser extends AbstractTokenParser
  32. {
  33. public function parse(Token $token): Node
  34. {
  35. $lineno = $token->getLine();
  36. $ref = new LocalVariable(null, $lineno);
  37. $filter = $ref;
  38. $op = $this->parser->getEnvironment()->getExpressionParsers()->getByClass(FilterExpressionParser::class);
  39. while (true) {
  40. $filter = $op->parse($this->parser, $filter, $this->parser->getCurrentToken());
  41. if (!$this->parser->getStream()->test(Token::OPERATOR_TYPE, '|')) {
  42. break;
  43. }
  44. $this->parser->getStream()->next();
  45. }
  47. $this->parser->getStream()->expect(Token::BLOCK_END_TYPE);
  48. $body = $this->parser->subparse([$this, 'decideApplyEnd'], true);
  49. $this->parser->getStream()->expect(Token::BLOCK_END_TYPE);
  51. return new Nodes([
  52. new SetNode(true, $ref, $body, $lineno),
  53. new PrintNode($filter, $lineno),
  54. ], $lineno);
  55. }
  57. public function decideApplyEnd(Token $token): bool
  58. {
  59. return $token->test('endapply');
  60. }
  62. public function getTag(): string
  63. {
  64. return 'apply';
  65. }
  66. }