MathParser\Interpreting\TreePrinter Class Reference

Simple string representation of an AST. More...

Inheritance diagram for MathParser\Interpreting\TreePrinter:

Public Member Functions
	visitExpressionNode (ExpressionNode $node)
	Print an ExpressionNode. More...
	visitNumberNode (NumberNode $node)
	Print a NumberNode. More...
	visitIntegerNode (IntegerNode $node)
	Interface function for visiting IntegerNodes. More...
	visitRationalNode (RationalNode $node)
	Interface function for visiting RationalNodes. More...
	visitVariableNode (VariableNode $node)
	Print a VariableNode. More...
	visitFunctionNode (FunctionNode $node)
	Print a FunctionNode. More...
	visitConstantNode (ConstantNode $node)
	Print a ConstantNode. More...

Detailed Description

Simple string representation of an AST.

Probably most useful for debugging purposes.

Implementation of a Visitor, transforming an AST into a string representation of the tree.

Example:

$parser = new StdMathParser();
$f = $parser->parse('exp(2x)+xy');
printer = new TreePrinter();
result = $f->accept($printer);    // Generates "(+ (exp (* 2 x)) (* x y))"

Member Function Documentation

MathParser\Interpreting\TreePrinter::visitConstantNode

(

ConstantNode

$node

)

Print a ConstantNode.

Parameters

ConstantNode

$node

Implements MathParser\Interpreting\Visitors\Visitor.

MathParser\Interpreting\TreePrinter::visitExpressionNode

(

ExpressionNode

$node

)

Print an ExpressionNode.

Parameters

ExpressionNode

$node

Implements MathParser\Interpreting\Visitors\Visitor.

MathParser\Interpreting\TreePrinter::visitFunctionNode

(

FunctionNode

$node

)

Print a FunctionNode.

Parameters

FunctionNode

$node

Implements MathParser\Interpreting\Visitors\Visitor.

MathParser\Interpreting\TreePrinter::visitIntegerNode

(

IntegerNode

$node

)

Interface function for visiting IntegerNodes.

Parameters

IntegerNode

$node

Node to visit.

Implements MathParser\Interpreting\Visitors\Visitor.

MathParser\Interpreting\TreePrinter::visitNumberNode

(

NumberNode

$node

)

Print a NumberNode.

Parameters

NumerNode

$node

Implements MathParser\Interpreting\Visitors\Visitor.

MathParser\Interpreting\TreePrinter::visitRationalNode

(

RationalNode

$node

)

Interface function for visiting RationalNodes.

Parameters

RationalNode

$node

Node to visit.

Implements MathParser\Interpreting\Visitors\Visitor.

MathParser\Interpreting\TreePrinter::visitVariableNode

(

VariableNode

$node

)

Print a VariableNode.

Parameters

VariableNode

$node

Implements MathParser\Interpreting\Visitors\Visitor.

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

• src/MathParser/Interpreting/TreePrinter.php