Creating a varargin-like object

[Edward C. Jones]

I use the Debian package octive2.1 version 1:2.1.72-10.

Here is an octave interactive session:

octave:1> c = cell(2)
c =

{
  [1,1] = [](0x0)
  [2,1] = [](0x0)
  [1,2] = [](0x0)
  [2,2] = [](0x0)
}

octave:2> c{:}
ans =

(,
  [1] = [](0x0)
  [2] = [](0x0)
  [3] = [](0x0)
  [4] = [](0x0)
,)

What kind of an object is c{:}? Note the curly brackets.

The octave source code is full of stuff like:

function plot (varargin)
  __plt__ ("plot", varargin{:});

Why are the curly brackets used?

Suppose I have a collection of strings 'A', 'B', ... What should XXX be in
the following:
    XXX = ?????
    menu('sometext', XXX)
so that the choices in the menu are 'A', 'B', etc. In other words, how do I
create a varargin-like object from scratch?



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