Package jason.stdlib

Class sort

java.lang.Object

jason.asSemantics.DefaultInternalAction

jason.stdlib.sort

All Implemented Interfaces:

InternalAction, Serializable

@Manual(literal=".sort(list,result)",
        hint="sorts a list of terms using the \"natural\" order. For different types, the order is: numbers < atoms < structures < lists",
        argsHint={"the list the be sorted","the resulting sorted list"},
        argsType={"list","list"},
        examples={".sort([C,b(4),A,4,b(1,1),\"x\",[],[c]],X): X unifies with [4,\"x\",[],[c],b(4),b(1,1),A,C]",".sort([a],[b,c],[a,b],~a(3),a(e,f),b,a(3)],X): X unifies with [[a],[a,b],[b,c],b,a(3),a(e,f),~a(3)]",".sort(b(3),a(10)[30],a(10)[5],a,a(d,e)],X): X unifies with [a,a(10)[5],a(10)[30],b(3),a(d,e)]",".sort([3,2,5],[2,3,5]): true",".sort([3,2,5],[a,b,c]): false"},
        seeAlso={"jason.stdlib.concat","jason.stdlib.delete","jason.stdlib.length","jason.stdlib.member","jason.stdlib.shuffle","jason.stdlib.nth","jason.stdlib.max","jason.stdlib.min","jason.stdlib.reverse","jason.stdlib.difference","jason.stdlib.intersection","jason.stdlib.union"})
public class sort
extends DefaultInternalAction

Internal action: .sort.

Description: sorts a list of terms. The "natural" order for each type of terms is used. Between different types of terms, the following order is used:
numbers < strings < lists < literals (by negation, arity, functor, terms, annotations) < variables

Parameters:

• + unordered list (list): the list the be sorted.
  
• +/- ordered list (list): the sorted list.

Examples:

• .sort([c,a,b],X): X unifies with [a,b,c].
• .sort([C,b(4),A,4,b(1,1),"x",[],[c],[a],[b,c],[a,b],~a(3),a(e,f),b,a(3),b(3),a(10)[30],a(10)[5],a,a(d,e)],X): X unifies with [4,"x",[],[a],[c],[a,b],[b,c],a,b,a(3),a(10)[5],a(10)[30],b(3),b(4),a(d,e),a(e,f),b(1,1),~a(3),A,C].
• .sort([3,2,5],[2,3,5]): true.
• .sort([3,2,5],[a,b,c]): false.

See Also:

• concat
• delete
• length
• member
• nth
• max
• min
• reverse
• difference
• intersection
• union
• Serialized Form

Constructor Summary

Constructors

Constructor	Description
sort()

Method Summary

Modifier and Type	Method	Description
protected void	checkArguments(Term[] args)
static InternalAction	create()
Object	execute(TransitionSystem ts, Unifier un, Term[] args)	Executes the internal action.
int	getMaxArgs()
int	getMinArgs()

Methods inherited from class jason.asSemantics.DefaultInternalAction

canBeUsedInContext, destroy, prepareArguments, suspendIntention

Methods inherited from class java.lang.Object

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

Constructor Details

sort

public sort()

Method Details

create

public static InternalAction create()

getMinArgs

public int getMinArgs()

Overrides:

getMinArgs in class DefaultInternalAction

getMaxArgs

public int getMaxArgs()

Overrides:

getMaxArgs in class DefaultInternalAction

checkArguments

protected void checkArguments(Term[] args)
                       throws JasonException

Overrides:

checkArguments in class DefaultInternalAction

Throws:

JasonException

execute

public Object execute(TransitionSystem ts,
 Unifier un,
 Term[] args)
               throws Exception

Description copied from interface: InternalAction

Executes the internal action. It should return a Boolean or an Iterator. A true boolean return means that the IA was successfully executed. An Iterator result means that there is more than one answer for this IA (e.g. see member internal action).

Specified by:

execute in interface InternalAction

Overrides:

execute in class DefaultInternalAction

Throws:

Exception