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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) - 2013 - Samuel GOUGEON
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
function r = %ip_part(txt, s)
// Allows calls such as: part(txt, $:-1:1) // (== strrev() )
// Calls with unranging $ are not supported => define %p_part()
// txt may be a matrix of texts with different lengths
// => $ might not have the same value for all of them
function b = checkip(p)
b = checkvar(p(1)) & checkvar(p(2)) & checkvar(p(3));
endfunction
function b = checkvar(p)
b = %t;
if typeof(p) == "polynomial" & varn(p) ~= "$" then
b = %f;
end
endfunction
//check s
if ~checkip(s) then
msg = _("%s: Wrong value for input argument #%d: $ expected.\n");
error(msprintf(msg,"part",2))
end
L = length(txt)
U = unique(L)
r = emptystr(txt)
for u = U(:)'
j = 1:u
k = find(L==u)
r(k) = part(txt(k), j(s))
end
endfunction
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