MathParser\Parsing\Nodes\Factories\NodeFactory Class Reference

Helper class for creating ExpressionNodes. More...

Public Member Functions
	__construct ()
	Constructor.
	addition ($leftOperand, $rightOperand)
	Create an addition node representing '$leftOperand + $rightOperand'. More...
	subtraction ($leftOperand, $rightOperand)
	Create a subtraction node representing '$leftOperand - $rightOperand'. More...
	multiplication ($leftOperand, $rightOperand)
	Create a multiplication node representing '$leftOperand * $rightOperand'. More...
	division ($leftOperand, $rightOperand)
	Create a division node representing '$leftOperand / $rightOperand'. More...
	exponentiation ($leftOperand, $rightOperand)
	Create an exponentiation node representing '$leftOperand ^ $rightOperand'. More...
	unaryMinus ($operand)
	Create a unary minus node representing '-$operand'. More...
	simplify (ExpressionNode $node)
	Simplify the given ExpressionNode, using the appropriate factory. More...

Protected Attributes
	$additionFactory
	Factory for creating addition nodes.
	$subtractionFactory
	Factory for creating subtraction nodes (including unary minus)
	$multiplicationFactory
	Factory for creating multiplication nodes.
	$divisionFactory
	Factory for creating division nodes.
	$exponentiationFactory
	Factory for creating exponentiation nodes.

Detailed Description

Helper class for creating ExpressionNodes.

Wrapper class, setting up factories for creating ExpressionNodes of various types (one for each operator). These factories take case of basic simplification.

Examples

use MathParser::Parsing::Nodes::Factories::NodeFactory;

$factory = new NodeFactory();
// Create AST for 'x/y + x*y'
$node = $factory->addition(
     $factory->division(new VariableNode('x'), new VariableNode('y')),
     $factory->multiplication(new VariableNode('x'), new VariableNode('y'))
);

Member Function Documentation

MathParser\Parsing\Nodes\Factories\NodeFactory::addition	(		$leftOperand,
			$rightOperand
	)

Create an addition node representing '$leftOperand + $rightOperand'.

Parameters

mixed	$leftOperand
mixed	$rightOperand

Return values

ExpressionNode

MathParser\Parsing\Nodes\Factories\NodeFactory::division	(		$leftOperand,
			$rightOperand
	)

Create a division node representing '$leftOperand / $rightOperand'.

Parameters

mixed	$leftOperand
mixed	$rightOperand

Return values

ExpressionNode

MathParser\Parsing\Nodes\Factories\NodeFactory::exponentiation	(		$leftOperand,
			$rightOperand
	)

Create an exponentiation node representing '$leftOperand ^ $rightOperand'.

Parameters

mixed	$leftOperand
mixed	$rightOperand

Return values

ExpressionNode

MathParser\Parsing\Nodes\Factories\NodeFactory::multiplication	(		$leftOperand,
			$rightOperand
	)

Create a multiplication node representing '$leftOperand * $rightOperand'.

Parameters

mixed	$leftOperand
mixed	$rightOperand

Return values

ExpressionNode

MathParser\Parsing\Nodes\Factories\NodeFactory::simplify

(

ExpressionNode

$node

)

Simplify the given ExpressionNode, using the appropriate factory.

Parameters

ExpressionNode

$node

Return values

Node	Simplified version of the input

MathParser\Parsing\Nodes\Factories\NodeFactory::subtraction	(		$leftOperand,
			$rightOperand
	)

Create a subtraction node representing '$leftOperand - $rightOperand'.

Parameters

mixed	$leftOperand
mixed	$rightOperand

Return values

ExpressionNode

MathParser\Parsing\Nodes\Factories\NodeFactory::unaryMinus

(

$operand

)

Create a unary minus node representing '-$operand'.

Parameters

mixed

$operand

Return values

ExpressionNode

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

• src/MathParser/Parsing/Nodes/Factories/NodeFactory.php