net.hydromatic.clapham.parser.wirth
Class WirthParser

java.lang.Object
  net.hydromatic.clapham.parser.wirth.WirthParser

All Implemented Interfaces:

WirthParserConstants

public class WirthParser
extends Object
implements WirthParserConstants

Parser for grammars in Wirth Syntax Notation.

Wirth Syntax Notation (WSN) is an alternative to Backus-Naur Form.

Author:

Julian Hyde

Field Summary

Token	jj_nt
Token	token
WirthParserTokenManager	token_source

Fields inherited from interface net.hydromatic.clapham.parser.wirth.WirthParserConstants

BAR, DEFAULT, DIGIT, DOT, EOF, EQ, IDENTIFIER, LBRACE, LBRACKET, LETTER, LITERAL, LPAREN, QUOT, RBRACE, RBRACKET, RPAREN, tokenImage

Constructor Summary

WirthParser(InputStream stream)

WirthParser(InputStream stream, String encoding)

WirthParser(Reader stream)

WirthParser(WirthParserTokenManager tm)

Method Summary

void	disable_tracing()
void	enable_tracing()
EbnfNode	Expression()
EbnfNode	Factor()
ParseException	generateParseException()
Token	getNextToken()
Token	getToken(int index)
IdentifierNode	Identifier()
LiteralNode	Literal()
ProductionNode	Production()
void	ReInit(InputStream stream)
void	ReInit(InputStream stream, String encoding)
void	ReInit(Reader stream)
void	ReInit(WirthParserTokenManager tm)
List<ProductionNode>	Syntax() Syntactical Descriptions *
EbnfNode	Term()
static <E extends EbnfNode> void	toString(StringBuilder buf, String start, List<E> list, String end)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

token_source

public WirthParserTokenManager token_source

token

public Token token

jj_nt

public Token jj_nt

Constructor Detail

WirthParser

public WirthParser(InputStream stream)

WirthParser

public WirthParser(InputStream stream,
                   String encoding)

WirthParser

public WirthParser(Reader stream)

WirthParser

public WirthParser(WirthParserTokenManager tm)

Method Detail

toString

public static <E extends EbnfNode> void toString(StringBuilder buf,
                                                 String start,
                                                 List<E> list,
                                                 String end)

Syntax

public final List<ProductionNode> Syntax()
                                  throws ParseException

Syntactical Descriptions *

Throws:

ParseException

Production

public final ProductionNode Production()
                                throws ParseException

Throws:

ParseException

Expression

public final EbnfNode Expression()
                          throws ParseException

Throws:

ParseException

Term

public final EbnfNode Term()
                    throws ParseException

Throws:

ParseException

Factor

public final EbnfNode Factor()
                      throws ParseException

Throws:

ParseException

Identifier

public final IdentifierNode Identifier()
                                throws ParseException

Throws:

ParseException

Literal

public final LiteralNode Literal()
                          throws ParseException

Throws:

ParseException

ReInit

public void ReInit(InputStream stream)

ReInit

public void ReInit(InputStream stream,
                   String encoding)

ReInit

public void ReInit(Reader stream)

ReInit

public void ReInit(WirthParserTokenManager tm)

getNextToken

public final Token getNextToken()

getToken

public final Token getToken(int index)

generateParseException

public ParseException generateParseException()

enable_tracing

public final void enable_tracing()

disable_tracing

public final void disable_tracing()