Package antlr

Class ParseTree

java.lang.Object

antlr.BaseAST

antlr.ParseTree

All Implemented Interfaces:

AST, Serializable

Direct Known Subclasses:

ParseTreeRule, ParseTreeToken

public abstract class ParseTree
extends BaseAST

See Also:

• Serialized Form

Field Summary

Fields inherited from class antlr.BaseAST

down, right

Constructor Summary

Constructors

Constructor	Description
ParseTree()

Method Summary

Modifier and Type	Method	Description
String	getLeftmostDerivation(int maxSteps)
protected abstract int	getLeftmostDerivation(StringBuffer buf, int step)	Get derivation and return how many you did (less than requested for subtree roots.
String	getLeftmostDerivationStep(int step)	Walk parse tree and return requested number of derivation steps.
void	initialize(int i, String s)
void	initialize(AST ast)
void	initialize(Token token)

Methods inherited from class antlr.BaseAST

addChild, decode, encode, equals, equalsList, equalsListPartial, equalsTree, equalsTreePartial, findAll, findAllPartial, getColumn, getFirstChild, getLine, getNextSibling, getNumberOfChildren, getText, getTokenNames, getType, removeChildren, setFirstChild, setNextSibling, setText, setType, setVerboseStringConversion, toString, toStringList, toStringTree, xmlSerialize, xmlSerializeNode, xmlSerializeRootClose, xmlSerializeRootOpen

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

ParseTree

public ParseTree()

Method Details

getLeftmostDerivationStep

public String getLeftmostDerivationStep(int step)

Walk parse tree and return requested number of derivation steps. If steps invalid input: '<'= 0, return node text. If steps == 1, return derivation string at step.

getLeftmostDerivation

public String getLeftmostDerivation(int maxSteps)

getLeftmostDerivation

protected abstract int getLeftmostDerivation(StringBuffer buf,
 int step)

Get derivation and return how many you did (less than requested for subtree roots.

initialize

public void initialize(int i,
 String s)

Specified by:

initialize in interface AST

Specified by:

initialize in class BaseAST

initialize

public void initialize(AST ast)

Specified by:

initialize in interface AST

Specified by:

initialize in class BaseAST

initialize

public void initialize(Token token)

Specified by:

initialize in interface AST

Specified by:

initialize in class BaseAST