Script appendix - AskiaDesign Assistant

Script appendix

In this topic:

Routing conditions
Truthy/falsey
Reserved keywords (index of keywords)

Routing conditions

In an Askia survey, a routing instruction has three parts:

the "when" (determines when the routing instruction is executed),
the condition (context of the execution) and
the action (what happens if the condition is satisfied).

In AskiaDesign, the following considerations apply:

The first IF statement is implicit (never required)
The returned expression is treat as boolean, even if it's not a concrete true / false boolean expression
The evaluation is done on the latest expression or on the expression return by the return statement

Truthy/Falsy

Askia defines truthy and falsy values, which indicate how the expression returned by the condition will be treated.

The following expressions are considered False:

False         ' => Explicit false
0              ' => Zero
DK            ' => DK value

All other values are considered True.

Examples

Return Age   ' => 2 (True)
Return 0      ' => False

Return DK       ' => DK (False)

Dim Text = "ABC" 
Return Text ' => "ABC" (True)

Reserved keywords (Index of keywords)

Constructor

Dim
Range
{ ; }
# #
& &
" "

Accessors

[ ]
( , )
?? ??
%% %%
^ ^

Operators

*
+
-
/
=
<>
<
>
<=
>=
Mod
Has
HasAll
HasNone
HasAndNoOther
HasAllAndNotOther
In
IsIncludedIn
Intersection
Union
As

Predefined values

True
False
ResPath
Now
CurrentQuestion
CurrentADC
CurrentADP
CrLf (Carriage return Line Feed)

Predefined objects

Interview
Quota
Assert

Execution flow

If
Then
Else
ElseIf
EndIf
And
Or
Not
Return
For
To
Next
Break
GoTo

Inline script specific

!! !!
{% %}

Reserved but not implemented

While
EndWhile
Do
EndDo
Sub
EndSub
Function
EndFunction
End
Private
Public
Protected
Continue
Global
Const
New
Set
Redim
Object
Array
Integer
Double
String
Number
Date
RegExp
Undefined
Null
Error
Question

AskiaScript 1.0 specific keywords

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