Twig_ExpressionParser Class Reference

Parses expressions. More...

Public Member Functions
	__construct (Twig_Parser $parser, array $unaryOperators, array $binaryOperators)
	parseExpression ($precedence=0)
	parsePrimaryExpression ()
	parseStringExpression ()
	parseArrayExpression ()
	parseHashExpression ()
	parsePostfixExpression ($node)
	getFunctionNode ($name, $line)
	parseSubscriptExpression ($node)
	parseFilterExpression ($node)
	parseFilterExpressionRaw ($node, $tag=null)
	parseArguments ($namedArguments=false, $definition=false)
	Parses arguments. More...
	parseAssignmentExpression ()
	parseMultitargetExpression ()

Data Fields
const	OPERATOR_LEFT = 1
const	OPERATOR_RIGHT = 2

Protected Member Functions
	getPrimary ()
	parseConditionalExpression ($expr)
	isUnary (Twig_Token $token)
	isBinary (Twig_Token $token)
	getFunctionNodeClass ($name, $line)
	getFilterNodeClass ($name, $line)
	checkConstantExpression (Twig_NodeInterface $node)

Protected Attributes
	$parser
	$unaryOperators
	$binaryOperators

Detailed Description

Parses expressions.

This parser implements a "Precedence climbing" algorithm.

See also

http://www.engr.mun.ca/~theo/Misc/exp_parsing.htm

http://en.wikipedia.org/wiki/Operator-precedence_parser

Author

Fabien Potencier fabie.nosp@m.n@sy.nosp@m.mfony.nosp@m..com

Definition at line 23 of file ExpressionParser.php.

Constructor & Destructor Documentation

__construct	(	Twig_Parser	$parser,
		array	$unaryOperators,
		array	$binaryOperators
	)

Definition at line 32 of file ExpressionParser.php.

Member Function Documentation

checkConstantExpression ( Twig_NodeInterface  $node )

protected

Definition at line 586 of file ExpressionParser.php.

getFilterNodeClass (   $name,   $line  )

protected

Definition at line 565 of file ExpressionParser.php.

getFunctionNode	(		$name,
			$line
	)

Definition at line 297 of file ExpressionParser.php.

getFunctionNodeClass (   $name,   $line  )

protected

Definition at line 545 of file ExpressionParser.php.

getPrimary ( )

protected

Definition at line 65 of file ExpressionParser.php.

isBinary ( Twig_Token  $token )

protected

Definition at line 116 of file ExpressionParser.php.

isUnary ( Twig_Token  $token )

protected

Definition at line 111 of file ExpressionParser.php.

parseArguments	(		$namedArguments = false,
			$definition = false
	)

Parses arguments.

Parameters

Boolean	$namedArguments	Whether to allow named arguments or not
Boolean	$definition	Whether we are parsing arguments for a function definition

Definition at line 456 of file ExpressionParser.php.

parseArrayExpression

(

)

Definition at line 207 of file ExpressionParser.php.

parseAssignmentExpression

(

)

Definition at line 512 of file ExpressionParser.php.

parseConditionalExpression (   $expr )

protected

Definition at line 87 of file ExpressionParser.php.

parseExpression

(

$precedence = 0

)

Definition at line 39 of file ExpressionParser.php.

parseFilterExpression

(

$node

)

Definition at line 417 of file ExpressionParser.php.

parseFilterExpressionRaw	(		$node,
			$tag = null
	)

Definition at line 424 of file ExpressionParser.php.

parseHashExpression

(

)

Definition at line 232 of file ExpressionParser.php.

parseMultitargetExpression

(

)

Definition at line 531 of file ExpressionParser.php.

parsePostfixExpression

(

$node

)

Definition at line 277 of file ExpressionParser.php.

parsePrimaryExpression

(

)

Definition at line 121 of file ExpressionParser.php.

parseStringExpression

(

)

Definition at line 177 of file ExpressionParser.php.

parseSubscriptExpression

(

$node

)

Definition at line 340 of file ExpressionParser.php.

Field Documentation

$binaryOperators

protected

Definition at line 30 of file ExpressionParser.php.

$parser

protected

Definition at line 28 of file ExpressionParser.php.

$unaryOperators

protected

Definition at line 29 of file ExpressionParser.php.

const OPERATOR_LEFT = 1

Definition at line 25 of file ExpressionParser.php.

const OPERATOR_RIGHT = 2

Definition at line 26 of file ExpressionParser.php.

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

• lib/templateEngines/twig/ExpressionParser.php