Vektor

Vector

Some InstantView^® statements take a variable amount of parameters out of the stack; some leave an unpredictable amount of results in the stack. The stack might also contain other values! [ and ] pool values inside these markers in a vector.
InstantView^® vectors can contain elements of different types. Comparing to C/C++, there is an analogy to arrays, as well as to structures. Two vector states are possible in the stack:

a sequence of entries, which start with [ and end with ]
an entry, which contains the complete vector (without [ and ]). A variable always contains a vector in this form.
InstantView^® internally represents vectors differently, depending on the contained elements. i

Vector operations are supported by the following statements:

-> var	assigned to a variable
#	[ e₁, ...e_n ] in pooled in a stack entry (shrink) / opposite operation (explode)
\|	join vectors, add an element to a vector, result is another vector
-	remove vector element from a vector, result is another vector
=	compare two vectors
Insert	insert an element into a vector
GetElement	obtain k-th vector element
Revert	reverse vector element order
GetVector	generate vector (out of a collection, ...)
CreateVector(n)	generate empty vector (pre-allocated for n elements)

Statements, which accept vectors as entry parameters are:
SetFormat, SetSort, FillObox, UpdateObox, RemoveObox, SetSelection, PutLine, Insert, Remove, GetObject . . .

The statement iterate can iterate via vector elements.