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2##
3## Copyright (C) 2008-2021 The Octave Project Developers
4##
5## See the file COPYRIGHT.md in the top-level directory of this
6## distribution or <https://octave.org/copyright/>.
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25
26## -*- texinfo -*-
27## @deftypefn {} {@var{newargs} =} __add_datasource__ (@var{fcn}, @var{h}, @var{data}, @var{varargin})
28## Undocumented internal function.
29## @end deftypefn
30
31function newargs = __add_datasource__ (fcn, h, data, varargin)
32
33  if (ischar (data))
34    data = {data};
35  endif
36
37  for i = 1 : numel (data)
38    addproperty ([data{i} "datasource"], h, "string", "");
39  endfor
40
41  i = 0;
42  newargs = {};
43  while (i < numel (varargin))
44    arg = varargin{++i};
45    if (i != numel (varargin) && ischar (arg)
46        && length (arg) > 9 && strcmpi (arg(end-9:end), "datasource"))
47      arg = tolower (arg);
48      val = varargin{++i};
49      if (ischar (val))
50        set (h, arg, val);
51      else
52        error ("%s: datasource must be a string", fcn);
53      endif
54    else
55      newargs{end + 1} = arg;
56    endif
57  endwhile
58
59endfunction
60