Package net.sf.tweety.logics.fol.writer

Class Prover9Writer

java.lang.Object

net.sf.tweety.logics.fol.writer.Prover9Writer

All Implemented Interfaces:

FolWriter

public class Prover9Writer
extends java.lang.Object
implements FolWriter

Prints single first-order logic formulas and full knowledge bases to Prover9 format (https://www.cs.unm.edu/~mccune/mace4/manual/2009-11A/).

Author:

Nils Geilen

See Also:

Prover9FolReasoner

Field Summary

Fields

Modifier and Type	Field	Description
(package private) java.io.Writer	writer	output is redirected to this writer

Constructor Summary

Constructors

Constructor	Description
Prover9Writer()	creates new Prover9Writer
Prover9Writer(java.io.Writer writer)	creates new Prover9Writer

Method Summary

Modifier and Type	Method	Description
void	close()	Closes the Writer.
private java.lang.String	parens(java.lang.String str)	Puts str in parentheses.
void	printBase(FolBeliefSet b)	Prints formatted representation of a knowledge base.
void	printEquivalence(FolFormula a, FolFormula b)	Prints an Equivalence.
private java.lang.String	printFormula(RelationalFormula f)	Creates a representation of a formula in Prover9 format.
void	printQuery(FolFormula query)	Prints formatted representation of a query.
private java.lang.String	printVar(Variable v)	Crates a type check or type def for a variable
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

writer

java.io.Writer writer

output is redirected to this writer

Constructor Detail

Prover9Writer

public Prover9Writer(java.io.Writer writer)

creates new Prover9Writer

Parameters:

writer - output is redirected to this writer

Prover9Writer

public Prover9Writer()

creates new Prover9Writer

Method Detail

printQuery

public void printQuery(FolFormula query)
                throws java.io.IOException

Description copied from interface: FolWriter

Prints formatted representation of a query.

Specified by:

printQuery in interface FolWriter

Parameters:

query - the formula to be queried

Throws:

java.io.IOException - if an IO issue occurs.

printEquivalence

public void printEquivalence(FolFormula a,
                             FolFormula b)
                      throws java.io.IOException

Description copied from interface: FolWriter

Prints an Equivalence.

Specified by:

printEquivalence in interface FolWriter

Parameters:

a - formula on one side of the equation

b - formula on the other side of the equation

Throws:

java.io.IOException - if an IO issue occurs.

printBase

public void printBase(FolBeliefSet b)
               throws java.io.IOException

Description copied from interface: FolWriter

Prints formatted representation of a knowledge base.

Specified by:

printBase in interface FolWriter

Parameters:

b - a knowledge base

Throws:

java.io.IOException - if an IO issue occurs.

printVar

private java.lang.String printVar(Variable v)

Crates a type check or type def for a variable

Parameters:

v - a variable

Returns:

type(var)

printFormula

private java.lang.String printFormula(RelationalFormula f)

Creates a representation of a formula in Prover9 format.

Parameters:

f - a formula

Returns:

a string that represents the formula in Prover9 format

parens

private java.lang.String parens(java.lang.String str)

Puts str in parentheses.

Parameters:

str - a string

Returns:

(str)

close

public void close()
           throws java.io.IOException

Description copied from interface: FolWriter

Closes the Writer.

Specified by:

close in interface FolWriter

Throws:

java.io.IOException - if an IO issue occurs.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object