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marf.nlp.Parsing
Class GenericLexicalAnalyzer  

java.lang.Object
  marf.nlp.Parsing.GenericLexicalAnalyzer

Direct Known Subclasses:

LexicalAnalyzer

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public abstract class GenericLexicalAnalyzer

extends java.lang.Object

GenericLexicalAnalyzer Class. (C) 2001-2005 Serguei Mokhov, $Id: GenericLexicalAnalyzer.java,v 1.8 2005/06/16 19:58:57 mokhov Exp $

Since:

0.3.0

Version:

$Revision: 1.8 $

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Field Summary
protected  java.lang.String	ErrorLogFilename           File name of a file which serves as an lexical errors log.
protected  boolean	ErrorsPresent
protected  java.util.Vector	LexicalErrors
protected  java.io.FileReader	oFileReader
protected  java.io.StreamTokenizer	oStreamTokenizer
protected  Token	oToken
protected  java.lang.String	OutputFilename           File name of a file which serves as an output of the Lexical Analyzer.
protected  java.lang.String	SourceFilename           File name of a file which serves as an input of the Lexical Analyzer.
protected  SymbolTable	SymTab
protected  java.util.Vector	TokenList

 

Constructor Summary

GenericLexicalAnalyzer(SymbolTable pSymTab)           Constructor.

 

Method Summary
Token	createToken(java.lang.String strLexeme, TokenSubType oTokenSubType)           createToken() creates an instance of a Token data structure provided its type and lexeme, and location is calculated dynamically by the StreamTokenyzer.
java.lang.String	getErrorLogFilename()           Access method for the ErrorLogFilename property.
boolean	getErrorsPresent()           Determines if the ErrorsPresent property is true.
static java.lang.String	getMARFSourceCodeRevision()           Retrieves class' revision.
abstract  Token	getNextToken()           Core method of the LexicalAnalyzer.
java.lang.String	getOutputFilename()           Access method for the OutputFilename property.
java.lang.String	getSourceFilename()           Access method for the SourceFilename property.
SymbolTable	getSymTab()           Access method for the SymTab property.
java.util.Vector	getTokenList()           Access method for the TonkenList property.
boolean	init()           Initialization routine.
void	scan()           Scan for tokens through the input stream.
abstract  boolean	serialize(int piOperation)           Load/Save the contents of lists such as Token list and Error list.
void	setErrorLogFilename(java.lang.String aErrorLogFilename)           Sets the value of the ErrorLogFilename property.
void	setOutputFilename(java.lang.String aOutputFilename)           Sets the value of the OutputFilename property.
void	setSourceFilename(java.lang.String aSourceFilename)           Sets the value of the SourceFilename property.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

oFileReader

protected java.io.FileReader oFileReader

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oStreamTokenizer

protected java.io.StreamTokenizer oStreamTokenizer

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SourceFilename

protected java.lang.String SourceFilename

File name of a file which serves as an input of the Lexical Analyzer.

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OutputFilename

protected java.lang.String OutputFilename

File name of a file which serves as an output of the Lexical Analyzer.

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ErrorLogFilename

protected java.lang.String ErrorLogFilename

File name of a file which serves as an lexical errors log.

Since:

September 2001

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ErrorsPresent

protected boolean ErrorsPresent

Since:

October 2, 2001

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TokenList

protected java.util.Vector TokenList

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SymTab

protected SymbolTable SymTab

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LexicalErrors

protected java.util.Vector LexicalErrors

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oToken

protected Token oToken

Constructor Detail

GenericLexicalAnalyzer

public GenericLexicalAnalyzer(SymbolTable pSymTab)

Constructor.

Method Detail

init

public boolean init()

Initialization routine. Should be overridden by derivatives because it is language-specific, and default initialization will not always suffice.

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scan

public void scan()

Scan for tokens through the input stream.

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serialize

public abstract boolean serialize(int piOperation)

Load/Save the contents of lists such as Token list and Error list. 0 means load, 1 means save. Load currently is not implemented

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getNextToken

public abstract Token getNextToken()

Core method of the LexicalAnalyzer.

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createToken

public Token createToken(java.lang.String strLexeme,
                         TokenSubType oTokenSubType)

createToken() creates an instance of a Token data structure provided its type and lexeme, and location is calculated dynamically by the StreamTokenyzer.

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getSourceFilename

public java.lang.String getSourceFilename()

Access method for the SourceFilename property.

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setSourceFilename

public void setSourceFilename(java.lang.String aSourceFilename)

Sets the value of the SourceFilename property.

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getOutputFilename

public java.lang.String getOutputFilename()

Access method for the OutputFilename property.

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setOutputFilename

public void setOutputFilename(java.lang.String aOutputFilename)

Sets the value of the OutputFilename property.

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getErrorLogFilename

public java.lang.String getErrorLogFilename()

Access method for the ErrorLogFilename property.

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setErrorLogFilename

public void setErrorLogFilename(java.lang.String aErrorLogFilename)

Sets the value of the ErrorLogFilename property.

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getErrorsPresent

public boolean getErrorsPresent()

Determines if the ErrorsPresent property is true.

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getTokenList

public java.util.Vector getTokenList()

Access method for the TonkenList property.

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getSymTab

public SymbolTable getSymTab()

Access method for the SymTab property.

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getMARFSourceCodeRevision

public static java.lang.String getMARFSourceCodeRevision()

Retrieves class' revision.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> marf >> nlp >> [ Parsing overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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