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alice.tuprolog
Class OperatorManager  

java.lang.Object
  alice.tuprolog.OperatorManager

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

DefaultOperatorManager

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public class OperatorManager

extends java.lang.Object

implements java.io.Serializable

collects and manages prolog operators

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Field Summary
static int	OP_HIGH           highest operator priority
static int	OP_LOW           lowest operator priority
protected  alice.util.LinkedQueue	opQueue           current known operators

 

Constructor Summary

OperatorManager()

 

Method Summary
alice.util.LinkedList	getOperators()
boolean	opNew(java.lang.String name, java.lang.String type, int prio)           deletes evelentually present operator (name,type) and adds a new op(precedence,type,name);
int	opNext(int prio)
int	opPrio(java.lang.String name, java.lang.String type)           gets op priority (OP_LOW if the op is not defined)

 

Methods inherited from class java.lang.Object

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

 

Field Detail

opQueue

protected alice.util.LinkedQueue opQueue

current known operators

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OP_LOW

public static final int OP_LOW

lowest operator priority

See Also:

Constant Field Values

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OP_HIGH

public static final int OP_HIGH

highest operator priority

See Also:

Constant Field Values

Constructor Detail

OperatorManager

public OperatorManager()

Method Detail

opNew

public boolean opNew(java.lang.String name,
                     java.lang.String type,
                     int prio)

deletes evelentually present operator (name,type) and adds a new op(precedence,type,name);

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opPrio

public int opPrio(java.lang.String name,
                  java.lang.String type)

gets op priority (OP_LOW if the op is not defined)

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getOperators

public alice.util.LinkedList getOperators()

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opNext

public int opNext(int prio)

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