Inheritance diagram for Twig_Extensions_Grammar_Optional:

Collaboration diagram for Twig_Extensions_Grammar_Optional:

Public Member Functions
	__construct ()

	__toString ()

	addGrammar (Twig_Extensions_GrammarInterface $grammar)

	parse (Twig_Token $token)

Public Member Functions inherited from Twig_Extensions_Grammar
	__construct ($name)

	setParser (Twig_Parser $parser)

	getName ()

Protected Attributes
	$grammar

Protected Attributes inherited from Twig_Extensions_Grammar
	$name

	$parser

Detailed Description

Deprecated:: since version 1.5

Definition at line 15 of file Optional.php.

Constructor & Destructor Documentation

◆ __construct()

Twig_Extensions_Grammar_Optional::__construct ( )

Definition at line 19 of file Optional.php.

References $grammar, and addGrammar().

     {
         $this->grammar = array();
         foreach (func_get_args() as $grammar) {
             $this->addGrammar($grammar);
         }
     }

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Member Function Documentation

◆ __toString()

Twig_Extensions_Grammar_Optional::__toString ( )

Definition at line 27 of file Optional.php.

References $grammar.

     {
         $repr = array();
         foreach ($this->grammar as $grammar) {
             $repr[] = (string) $grammar;
         }
 
         return sprintf('[%s]', implode(' ', $repr));
     }

◆ addGrammar()

Twig_Extensions_Grammar_Optional::addGrammar ( Twig_Extensions_GrammarInterface $grammar )

Definition at line 37 of file Optional.php.

References $grammar.

Referenced by __construct().

     {
         $this->grammar[] = $grammar;
     }

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◆ parse()

Twig_Extensions_Grammar_Optional::parse ( Twig_Token $token )

Implements Twig_Extensions_GrammarInterface.

Definition at line 42 of file Optional.php.

References $grammar, Twig_Token\BLOCK_END_TYPE, Twig_Extensions_Grammar\getName(), and Twig_Token\NAME_TYPE.

     {
         // test if we have the optional element before consuming it
         if ($this->grammar[0] instanceof Twig_Extensions_Grammar_Constant) {
             if (!$this->parser->getStream()->test($this->grammar[0]->getType(), $this->grammar[0]->getName())) {
                 return array();
             }
         } elseif ($this->grammar[0] instanceof Twig_Extensions_Grammar_Name) {
             if (!$this->parser->getStream()->test(Twig_Token::NAME_TYPE)) {
                 return array();
             }
         } elseif ($this->parser->getStream()->test(Twig_Token::BLOCK_END_TYPE)) {
             // if this is not a Constant or a Name, it must be the last element of the tag
 
             return array();
         }
 
         $elements = array();
         foreach ($this->grammar as $grammar) {
             $grammar->setParser($this->parser);
 
             $element = $grammar->parse($token);
             if (is_array($element)) {
                 $elements = array_merge($elements, $element);
             } else {
                 $elements[$grammar->getName()] = $element;
             }
         }
 
         return $elements;
     }

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Field Documentation

◆ $grammar

Twig_Extensions_Grammar_Optional::$grammar

protected

Definition at line 17 of file Optional.php.

Referenced by __construct(), __toString(), addGrammar(), and parse().

The documentation for this class was generated from the following file:

libs/composer/vendor/twig/extensions/lib/Twig/Extensions/Grammar/Optional.php

Public Member Functions

Protected Attributes