A node of the EBNF parse tree. More...

Public Types
enum	NodeType { Undefined, Grammar, Production, Terminal, Quotation, Name, Repetition, Option, Sequence, Choice }
	the type of node, which corresponds to the non-terminals of the EBNF for EBNF. More...

Public Member Functions
	EbnfNode ()
	Constructor.

	~EbnfNode ()
	Destructor.

std::string	typeOfNode () const
	get the type of the node More...

void	typeOfNode (const std::string &t)
	set the type of the node More...

Public Attributes
EbnfNode *	parent
	pointer to parent node

EbnfNode *	prev
	pointer to previous sibling node

EbnfNode *	next
	pointer to next sibling node

EbnfNode *	firstChild
	pointer to first child node

EbnfNode *	lastChild
	pointer to last child node

NodeType	nodeType
	defines what EBNF non-terminal the node represents

std::string	text
	the terminal leaves of the EBNF

Detailed Description

A node of the EBNF parse tree.

A node of the EbnfTree used to pass the parsed form of an EBNF definition between modules.

Member Enumeration Documentation

the type of node, which corresponds to the non-terminals of the EBNF for EBNF.

Enumerator
Undefined	just until we load something sensible.
Grammar	the root of the tree - only one of these.
Production	one for each production. Can have any number of child nodes. firstChild is the Name of the Production.
Terminal	one or two children of type Quotation. firstChild == lastChild if only one child.
Quotation	has no children
Name	has no children
Repetition	can have any number of children
Option	can have any number of children
Sequence	can have any number of children
Choice	has two children

string EbnfNode::typeOfNode ( ) const

get the type of the node

void EbnfNode::typeOfNode ( const std::string & t )

set the type of the node

Parameters

t	the type of the node as a string

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