edu.jas.application
Class RingFactoryTokenizer

java.lang.Object
  edu.jas.application.RingFactoryTokenizer

public class RingFactoryTokenizer
extends java.lang.Object

RingFactory Tokenizer. Used to read ring factories from input streams. It can read also QuotientRing factory.

Author:

Heinz Kredel

Constructor Summary

RingFactoryTokenizer()
No-args constructor reads from System.in.

RingFactoryTokenizer(GenPolynomialRing rf, java.io.Reader r)
Constructor with Ring and Reader.

RingFactoryTokenizer(java.io.Reader r)
Constructor with Reader.

Method Summary

void	initFactory(RingFactory rf, edu.jas.application.RingFactoryTokenizer.coeffType ct) Initialize coefficient and polynomial factories.
void	initSolvableFactory(RingFactory rf, edu.jas.application.RingFactoryTokenizer.coeffType ct) Initialize coefficient and solvable polynomial factories.
RingFactory	nextCoefficientRing() Parsing method for coefficient ring. syntax: Rat | Q | Int | Z | Mod modul | Complex | C | D | Quat | AN[ (var) ( poly ) | AN[ modul (var) ( poly ) ] | RatFunc (var_list) | ModFunc modul (var_list) | IntFunc (var_list)
void	nextComma()
java.lang.String	nextComment() Parsing method for comments. syntax: (* comment *) | /_* comment *_/ without _ Does not work with this pushBack(), unused.
GenPolynomialRing	nextPolynomialRing() Parsing method for polynomial set. syntax: coeffRing varList termOrderName polyList.
void	nextRelationTable() Parsing method for solvable polynomial relation table. syntax: ( p_1, p_2, p_3, ..., p_{n+3} ) semantics: p_{n+1} * p_{n+2} = p_{n+3} The next relation table is stored into the solvable polynomial factory.
GenSolvablePolynomialRing	nextSolvablePolynomialRing() Parsing method for solvable polynomial set. syntax: varList termOrderName relationTable polyList.
int	nextSplitIndex() Parsing method for split index. syntax: |i|
TermOrder	nextTermOrder() Parsing method for term order name. syntax: termOrderName = L, IL, LEX, G, IG, GRLEX, W(weights) |split index|
java.lang.String[]	nextVariableList() Parsing method for variable list. syntax: (a, b c, de) gives [ "a", "b", "c", "de" ]
long[][]	nextWeightArray() Parsing method for weight array. syntax: ( (w11, ...
long[]	nextWeightList() Parsing method for weight list. syntax: (w1, w2, w3, ..., wn)
static java.lang.String[]	variableList(java.lang.String s) Parse variable list from String.

Methods inherited from class java.lang.Object

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

Constructor Detail

RingFactoryTokenizer

public RingFactoryTokenizer()

No-args constructor reads from System.in.

RingFactoryTokenizer

public RingFactoryTokenizer(GenPolynomialRing rf,
                            java.io.Reader r)

Constructor with Ring and Reader.

Parameters:

rf - ring factory.

r - reader stream.

RingFactoryTokenizer

public RingFactoryTokenizer(java.io.Reader r)

Constructor with Reader.

Parameters:

r - reader stream.

Method Detail

initFactory

public void initFactory(RingFactory rf,
                        edu.jas.application.RingFactoryTokenizer.coeffType ct)

Initialize coefficient and polynomial factories.

Parameters:

rf - ring factory.

ct - coefficient type.

initSolvableFactory

public void initSolvableFactory(RingFactory rf,
                                edu.jas.application.RingFactoryTokenizer.coeffType ct)

Initialize coefficient and solvable polynomial factories.

Parameters:

rf - ring factory.

ct - coefficient type.

nextComment

public java.lang.String nextComment()
                             throws java.io.IOException

Parsing method for comments. syntax: (* comment *) | /_* comment *_/ without _ Does not work with this pushBack(), unused.

Throws:

java.io.IOException

nextVariableList

public java.lang.String[] nextVariableList()
                                    throws java.io.IOException

Parsing method for variable list. syntax: (a, b c, de) gives [ "a", "b", "c", "de" ]

Returns:

the next variable list.

Throws:

java.io.IOException

nextCoefficientRing

public RingFactory nextCoefficientRing()
                                throws java.io.IOException

Parsing method for coefficient ring. syntax: Rat | Q | Int | Z | Mod modul | Complex | C | D | Quat | AN[ (var) ( poly ) | AN[ modul (var) ( poly ) ] | RatFunc (var_list) | ModFunc modul (var_list) | IntFunc (var_list)

Returns:

the next coefficient factory.

Throws:

java.io.IOException

nextWeightList

public long[] nextWeightList()
                      throws java.io.IOException

Parsing method for weight list. syntax: (w1, w2, w3, ..., wn)

Returns:

the next weight list.

Throws:

java.io.IOException

nextWeightArray

public long[][] nextWeightArray()
                         throws java.io.IOException

Parsing method for weight array. syntax: ( (w11, ...,w1n), ..., (wm1, ..., wmn) )

Returns:

the next weight array.

Throws:

java.io.IOException

nextSplitIndex

public int nextSplitIndex()
                   throws java.io.IOException

Parsing method for split index. syntax: |i|

Returns:

the next split index.

Throws:

java.io.IOException

nextTermOrder

public TermOrder nextTermOrder()
                        throws java.io.IOException

Parsing method for term order name. syntax: termOrderName = L, IL, LEX, G, IG, GRLEX, W(weights) |split index|

Returns:

the next term order.

Throws:

java.io.IOException

nextRelationTable

public void nextRelationTable()
                       throws java.io.IOException

Parsing method for solvable polynomial relation table. syntax: ( p_1, p_2, p_3, ..., p_{n+3} ) semantics: p_{n+1} * p_{n+2} = p_{n+3} The next relation table is stored into the solvable polynomial factory.

Throws:

java.io.IOException

nextPolynomialRing

public GenPolynomialRing nextPolynomialRing()
                                     throws java.io.IOException

Parsing method for polynomial set. syntax: coeffRing varList termOrderName polyList.

Returns:

the next polynomial set.

Throws:

java.io.IOException

nextSolvablePolynomialRing

public GenSolvablePolynomialRing nextSolvablePolynomialRing()
                                                     throws java.io.IOException

Parsing method for solvable polynomial set. syntax: varList termOrderName relationTable polyList.

Returns:

the next solvable polynomial set.

Throws:

java.io.IOException

nextComma

public void nextComma()
               throws java.io.IOException

Throws:

java.io.IOException

variableList

public static java.lang.String[] variableList(java.lang.String s)

Parse variable list from String.

Parameters:

s - String. Syntax: (n1,...,nk) or (n1 ... nk), brackest are also optional.

Returns:

array of variable names found in s.