jason.stdlib
Class reverse

java.lang.Object
  jason.asSemantics.DefaultInternalAction
      jason.stdlib.reverse

All Implemented Interfaces:

InternalAction, java.io.Serializable

public class reverse
extends DefaultInternalAction

Internal action: .reverse.

Description: reverses strings or lists.

Parameters:

• + arg[0] (list or string): the list to be reversed.
  
• +/- arg[1]: the result.

Examples:

• .reverse("abc",X): X unifies with "cba".
• .reverse("[a,b,c]",X): X unifies with "[c,b,a]".
• .reverse("[a,b,c|T]",X): X unifies with "[c,b,a|T]".

See Also:

concat, delete, length, nth, max, member, min, sort, substring, difference, intersection, union, Serialized Form

Constructor Summary

reverse()

Method Summary

static InternalAction	create()
java.lang.Object	execute(TransitionSystem ts, Unifier un, Term[] args) Executes the internal action.
int	getMaxArgs()
int	getMinArgs()

Methods inherited from class jason.asSemantics.DefaultInternalAction

canBeUsedInContext, checkArguments, prepareArguments, suspendIntention

Methods inherited from class java.lang.Object

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

Constructor Detail

reverse

public reverse()

Method Detail

create

public static InternalAction create()

getMinArgs

public int getMinArgs()

Overrides:

getMinArgs in class DefaultInternalAction

getMaxArgs

public int getMaxArgs()

Overrides:

getMaxArgs in class DefaultInternalAction

execute

public java.lang.Object execute(TransitionSystem ts,
                                Unifier un,
                                Term[] args)
                         throws java.lang.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:

java.lang.Exception