Lists in Transcript

[Dar Scott]

On May 23, 2005, at 3:56 PM, Ruslan Zasukhin wrote:

> Sending of many parameters is not equivalent
>
> Because if you have list
>
>     v = [v1, v2, ... ]
>
> This is an object, like array you have.
> You can use it many times, you can modify it and so on.

It is not equivalent.  But it is an option in designing the interface 
to func().

The natural aggregations in Transcript are words, items, lines and 
arrays.  I build up my own, but those are what folks would expect, so 
unless your aggregate is opaque, you might want to use these if you 
can.

Words and items build nicely:

    func( var1, (v1 && v2 && "ffsdg" && 4.52) )
    func( var1, (v1, v2, "ffsdg", 4.52) )

Or, using Andre's list for lines:

    func( var1, list(v1, v2, "ffsdg", 4.52)

Or your custom aggregation:

    func( var1, rz(v1, v2, "ffsdg", 4.52) )

However, you can always expand the function so that if there are extra 
parameters (or the first doesn't look like your aggregate), then the 
building is automatic:

    func( var1, v1, v2, "ffsdg", 4.52)

In this case, use paramCount() and param() to pick up args 2 up and 
build something.

Even for words and items you still might want to use a function because 
numberFormat is applied in the creation of words, items and (as it 
stands) lines in the above examples.  For example, Andre's list example 
can be enhanced to include a big numberFormat or other formatting so 
info is not lost for numbers.  Number info is not lost in array 
elements.

Dar

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