proper.imp
Class Parser

java.lang.Object
  proper.core.ProperObject
      proper.imp.Parser

All Implemented Interfaces:

ProperInterface, ParserInterface

Direct Known Subclasses:

CSVParser, PrologParser

public abstract class Parser
extends ProperObject
implements ParserInterface

This abstract is the ancestor for several Parsers that use predicates. Handwritten parser was necessary, since JLex/CUP had problems with big files...

Version:

$Revision: 1.2 $

Author:

FracPete

Field Summary

static boolean

RELAGGS_FIX fixes the problem of RELAGGS with "+" and "-", by changing it to "pos" and "neg"

Fields inherited from interface proper.imp.ParserInterface

CLASS_NEGATIVE, CLASS_POSITIVE

Fields inherited from interface proper.core.ProperInterface

VERSION

Constructor Summary

Parser()
initializes the parser

Method Summary

void	clear() clears the currently stored predicates
boolean	getAddClassLabel() returns the current status of the flag for adding class labels ('+' or '-') to the facts
java.lang.String	getClassLabel() the current label for the class
java.lang.String	getFilename() returns the current filename
boolean	getOnlyForSingles() returns the flag, whether the class label is added only to predicates with one argument
java.util.Vector	getPredicates() returns the currently stored predicates
void	parse(java.io.Reader reader) uses the given reader to parse the file
void	parse(java.lang.String filename) parses the given file
void	setAddClassLabel(boolean addClassLabel) if this flag is set, the file is considered as without class labels and therefore facts with ":-" are labeled with '-' otherwise with '+'
void	setClassLabel(java.lang.String classLabel) sets the class label to use
void	setFilename(java.lang.String filename) sets the name of the file being parsed right now
void	setID(ID id) sets the ID-generator
void	setOnlyForSingles(boolean onlyForSingles) sets the flag, whether the class label is added only to predicates with one argument
java.lang.String	toString() returns the currently stored predicates in string representation

Methods inherited from class proper.core.ProperObject

addListener, addOutput, classInVerbose, debugprint, debugprint, debugprint, debugprint, debugprintln, debugprintln, debugprintln, debugprintln, debugprintln, getListeners, getRuntime, getVerbose, getVerboseLevel, getVerboseLevelForClass, getVerboseString, getVerboseStringForClass, notifyListener, notifyListeners, print, print, print, print, println, println, println, println, println, printMemory, removeListener, setOutput, setVerbose, setVerboseLevel, setVerboseString

Methods inherited from class java.lang.Object

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

Methods inherited from interface proper.imp.ParserInterface

getVerbose, setVerbose

Field Detail

RELAGGS_FIX

public static final boolean RELAGGS_FIX

fixes the problem of RELAGGS with "+" and "-", by changing it to "pos" and "neg"

See Also:

Constant Field Values

Constructor Detail

Parser

public Parser()

initializes the parser

Method Detail

setID

public void setID(ID id)

sets the ID-generator

Specified by:

setID in interface ParserInterface

getPredicates

public java.util.Vector getPredicates()

returns the currently stored predicates

Specified by:

getPredicates in interface ParserInterface

setAddClassLabel

public void setAddClassLabel(boolean addClassLabel)

if this flag is set, the file is considered as without class labels and therefore facts with ":-" are labeled with '-' otherwise with '+'

Specified by:

setAddClassLabel in interface ParserInterface

getAddClassLabel

public boolean getAddClassLabel()

returns the current status of the flag for adding class labels ('+' or '-') to the facts

Specified by:

getAddClassLabel in interface ParserInterface

setOnlyForSingles

public void setOnlyForSingles(boolean onlyForSingles)

sets the flag, whether the class label is added only to predicates with one argument

Specified by:

setOnlyForSingles in interface ParserInterface

getOnlyForSingles

public boolean getOnlyForSingles()

returns the flag, whether the class label is added only to predicates with one argument

Specified by:

getOnlyForSingles in interface ParserInterface

setClassLabel

public void setClassLabel(java.lang.String classLabel)

sets the class label to use

Specified by:

setClassLabel in interface ParserInterface

See Also:

ParserInterface.setOnlyForSingles(boolean)

getClassLabel

public java.lang.String getClassLabel()

the current label for the class

Specified by:

getClassLabel in interface ParserInterface

setFilename

public void setFilename(java.lang.String filename)

sets the name of the file being parsed right now

Specified by:

setFilename in interface ParserInterface

getFilename

public java.lang.String getFilename()

returns the current filename

Specified by:

getFilename in interface ParserInterface

clear

public void clear()

clears the currently stored predicates

Specified by:

clear in interface ParserInterface

parse

public void parse(java.lang.String filename)
           throws java.lang.Exception

parses the given file

Specified by:

parse in interface ParserInterface

Throws:

java.lang.Exception

parse

public void parse(java.io.Reader reader)
           throws java.lang.Exception

uses the given reader to parse the file

Specified by:

parse in interface ParserInterface

Throws:

java.lang.Exception

toString

public java.lang.String toString()

returns the currently stored predicates in string representation

Overrides:

toString in class ProperObject