Package jason.stdlib
Class number
java.lang.Object
jason.asSemantics.DefaultInternalAction
jason.stdlib.number
- All Implemented Interfaces:
InternalAction
,Serializable
@Manual(literal=".number(argument)",
hint="checks whether the argument is a number",
argsHint="the term to be checked",
argsType="term",
examples=".number(10): true.number(10.34): true.number(b(10)): false.number(\"home page\"): false.number(X): false if X is free, true if X is bound to a number",
seeAlso={"jason.stdlib.atom","jason.stdlib.list","jason.stdlib.literal","jason.stdlib.string","jason.stdlib.structure","jason.stdlib.ground"})
public class number
extends DefaultInternalAction
Internal action: .number
.
Description: checks whether the argument is a number.
Parameter:
- + argument (any term): the term to be checked.
Examples:
-
.number(10)
: true. -
.number(10.34)
: true. -
.number(b(10))
: false. -
.number("home page")
: false. -
.number(X)
: false if X is free, true if X is bound to a number.
- See Also:
-
Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionstatic InternalAction
create()
execute
(TransitionSystem ts, Unifier un, Term[] args) Executes the internal action.int
int
Methods inherited from class jason.asSemantics.DefaultInternalAction
canBeUsedInContext, checkArguments, destroy, prepareArguments, suspendIntention
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Constructor Details
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number
public number()
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Method Details
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create
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getMinArgs
public int getMinArgs()- Overrides:
getMinArgs
in classDefaultInternalAction
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getMaxArgs
public int getMaxArgs()- Overrides:
getMaxArgs
in classDefaultInternalAction
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execute
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 interfaceInternalAction
- Overrides:
execute
in classDefaultInternalAction
- Throws:
Exception
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