Package jason.stdlib
Class sublist
java.lang.Object
jason.asSemantics.DefaultInternalAction
jason.stdlib.sublist
- All Implemented Interfaces:
InternalAction
,java.io.Serializable
@Manual(literal=".sublist(sublist,list)", hint="checks if a list is a subset of a given list, backtracking all free variables", argsHint={"the sublist to be checked","the list where the sublist may be to be a subset"}, argsType={"list","list"}, examples={".sublist([a],[a,b,c]): true",".sublist([b],[a,b,c]): true",".sublist([c],[a,b,c]): true",".sublist([a,b],[a,b,c]): true",".sublist([b,c],[a,b,c]): true",".sublist([d],[a,b,c]): false",".sublist(X,[a,b,c]): unifies X with any sublist of the list, i.e., [a,b,c], [a,b], [a], [b,c], [b], [c], and [] in this order"}, seeAlso={"jason.stdlib.concat","jason.stdlib.delete","jason.stdlib.length","jason.stdlib.member","jason.stdlib.sort","jason.stdlib.shuffle","jason.stdlib.substring","jason.stdlib.nth","jason.stdlib.max","jason.stdlib.min","jason.stdlib.reverse","jason.stdlib.difference","jason.stdlib.intersection","jason.stdlib.union"}) public class sublist extends DefaultInternalAction
Internal action: .sublist(S,L)
.
Description: checks if some list S is a sublist of list L. If S has free variables, this internal action backtracks all possible values for S. This is based on .prefix and .suffix (try prefixes first then prefixes of each suffix).
Parameters:
- +/- sublist (list): the sublist to be checked.
- + list (list): the list where the sublist is from.
Examples:
-
.sublist([a],[a,b,c])
: true. -
.sublist([b],[a,b,c])
: true. -
.sublist([c],[a,b,c])
: true. -
.sublist([a,b],[a,b,c])
: true. -
.sublist([b,c],[a,b,c])
: true. -
.sublist([d],[a,b,c])
: false. -
.sublist([a,c],[a,b,c])
: false. -
.sublist(X,[a,b,c])
: unifies X with any sublist of the list, i.e., [a,b,c], [a,b], [a], [b,c], [b], [c], and [] in this order; note that this is not the order in which its usual implementation would return in logic programming (see note on .prefix).
- See Also:
concat
,length
,sort
,nth
,max
,min
,reverse
,prefix
,suffix
,difference
,intersection
,union
, Serialized Form
-
Field Summary
Fields Modifier and Type Field Description private static InternalAction
singleton
-
Constructor Summary
Constructors Constructor Description sublist()
-
Method Summary
Modifier and Type Method Description protected void
checkArguments(Term[] args)
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, destroy, prepareArguments, suspendIntention
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
-
Field Details
-
singleton
-
-
Constructor Details
-
sublist
public sublist()
-
-
Method Details
-
create
-
getMinArgs
public int getMinArgs()- Overrides:
getMinArgs
in classDefaultInternalAction
-
getMaxArgs
public int getMaxArgs()- Overrides:
getMaxArgs
in classDefaultInternalAction
-
checkArguments
- Overrides:
checkArguments
in classDefaultInternalAction
- Throws:
JasonException
-
execute
public java.lang.Object execute(TransitionSystem ts, Unifier un, Term[] args) throws java.lang.ExceptionDescription 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 interfaceInternalAction
- Overrides:
execute
in classDefaultInternalAction
- Throws:
java.lang.Exception
-