class Twig_TokenParser_If in Zircon Profile 8

Tests a condition.

<pre> {% if users %} <ul> {% for user in users %} <li>{{ user.username|e }}</li> {% endfor %} </ul> {% endif %} </pre>

Hierarchy

• class \Twig_TokenParser implements Twig_TokenParserInterface
  • class \Twig_TokenParser_If

File

vendor/twig/twig/lib/Twig/TokenParser/If.php, line 26

class Twig_TokenParser_If extends Twig_TokenParser {
  public function parse(Twig_Token $token) {
    $lineno = $token
      ->getLine();
    $expr = $this->parser
      ->getExpressionParser()
      ->parseExpression();
    $stream = $this->parser
      ->getStream();
    $stream
      ->expect(Twig_Token::BLOCK_END_TYPE);
    $body = $this->parser
      ->subparse(array(
      $this,
      'decideIfFork',
    ));
    $tests = array(
      $expr,
      $body,
    );
    $else = null;
    $end = false;
    while (!$end) {
      switch ($stream
        ->next()
        ->getValue()) {
        case 'else':
          $stream
            ->expect(Twig_Token::BLOCK_END_TYPE);
          $else = $this->parser
            ->subparse(array(
            $this,
            'decideIfEnd',
          ));
          break;
        case 'elseif':
          $expr = $this->parser
            ->getExpressionParser()
            ->parseExpression();
          $stream
            ->expect(Twig_Token::BLOCK_END_TYPE);
          $body = $this->parser
            ->subparse(array(
            $this,
            'decideIfFork',
          ));
          $tests[] = $expr;
          $tests[] = $body;
          break;
        case 'endif':
          $end = true;
          break;
        default:
          throw new Twig_Error_Syntax(sprintf('Unexpected end of template. Twig was looking for the following tags "else", "elseif", or "endif" to close the "if" block started at line %d).', $lineno), $stream
            ->getCurrent()
            ->getLine(), $stream
            ->getFilename());
      }
    }
    $stream
      ->expect(Twig_Token::BLOCK_END_TYPE);
    return new Twig_Node_If(new Twig_Node($tests), $else, $lineno, $this
      ->getTag());
  }
  public function decideIfFork(Twig_Token $token) {
    return $token
      ->test(array(
      'elseif',
      'else',
      'endif',
    ));
  }
  public function decideIfEnd(Twig_Token $token) {
    return $token
      ->test(array(
      'endif',
    ));
  }
  public function getTag() {
    return 'if';
  }

}

Members

Name	Modifiers	Type	Description	Overrides
Twig_TokenParser::$parser	protected	property
Twig_TokenParser::setParser	public	function	Sets the parser associated with this token parser. Overrides Twig_TokenParserInterface::setParser
Twig_TokenParser_If::decideIfEnd	public	function
Twig_TokenParser_If::decideIfFork	public	function
Twig_TokenParser_If::getTag	public	function	Gets the tag name associated with this token parser. Overrides Twig_TokenParserInterface::getTag
Twig_TokenParser_If::parse	public	function	Parses a token and returns a node. Overrides Twig_TokenParserInterface::parse