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ReNode Class Reference

#include <re_node.hh>

Inheritance diagram for ReNode:

[legend]Collaboration diagram for ReNode:

[legend]List of all members.

Public Methods
	ReNode (const Position &pos_)
virtual	~ReNode ()
virtual ReNode*	clone ()=0
virtual bool	isLeaf ()
virtual int	getChildCount ()=0
virtual ReNode&	operator[] (int index)=0
virtual bool	dfTraverse (ReNodeAlgo &algo)
const Position&	getPos () const
virtual void	dump (ostream &os) const=0
Private Attributes
Position	pos

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Detailed Description

This is the regular expression nodes' interface. Such nodes are usually build by a IreNodeBuilder implementation. This interface only specifies the basic tree structure operations.

Definition at line 50 of file re_node.hh.

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Constructor & Destructor Documentation

ReNode::ReNode ( const Position & pos_ ) [inline]

Definition at line 54 of file re_node.hh.

ReNode::~ReNode ( ) [inline, virtual]

Definition at line 58 of file re_node.hh.

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Member Function Documentation

ReNode * ReNode::clone ( ) [pure virtual]

Creates a copy of the regexp parse tree rooted in this node. Reimplemented in ReCatNode, ReOrNode, ReStarNode, ReCharNode, ReEotNode, and ReLambdaNode. Referenced by ReStarNode::clone(), ReOrNode::clone(), ReCatNode::clone(), DfaReNodeBuilder::createPlusNode(), and ScannerSpec::updateStates().

bool ReNode::isLeaf ( ) [inline, virtual]

Returns true if this node is a leaf node. Definition at line 68 of file re_node.hh.

int ReNode::getChildCount ( ) [pure virtual]

Returns the number of child nodes of this node. Reimplemented in ReCatNode, ReOrNode, ReStarNode, ReCharNode, ReEotNode, and ReLambdaNode. Referenced by dfTraverse(), and isLeaf().

ReNode & ReNode::operator[] ( int index ) [pure virtual]

Returns the index'th child of this node. Precondition: 0 <= index <= getChildCount() Reimplemented in ReCatNode, ReOrNode, ReStarNode, ReCharNode, ReEotNode, and ReLambdaNode.

bool ReNode::dfTraverse ( ReNodeAlgo & algo ) [virtual]

Generic depth-first traversal method. At each node, the () operator of the ReNodeAlgo object is invoked, with *this as argument. The traversal continues as long as the () operator returns true. Definition at line 39 of file re_node.cc.

const Position & ReNode::getPos ( ) const [inline]

Definition at line 90 of file re_node.hh. Referenced by ReLambdaNode::clone(), ReEotNode::clone(), ReCharNode::clone(), ReStarNode::clone(), ReOrNode::clone(), ReCatNode::clone(), and DfaSourceRe::dump().

void ReNode::dump ( ostream & os ) const [pure virtual]

Reimplemented in DfaSourceRe, ReCatNode, ReOrNode, ReStarNode, ReCharNode, ReEotNode, and ReLambdaNode. Referenced by TokenDesc::dump().

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Member Data Documentation

Position ReNode::pos [private]

Reimplemented in ReCharNode, ReEotNode, and ReLambdaNode. Definition at line 100 of file re_node.hh.

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

• re_node.hh
• re_node.cc

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