function rval = strjoin (c, varargin)
%function rval = strjoin (c, varargin)

% Copyright (C) 2007 Muthiah Annamalai <muthiah.annamalai@uta.edu>
% Copyright (C) 2013 Dynare Team
%
% This file is part of Dynare.
%
% Dynare is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% Dynare is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with Dynare.  If not, see <http://www.gnu.org/licenses/>.

assert(iscellstr(c), 'strjoin: first argument is a cell array of strings');
assert(nargin <= 2, 'strjoin: takes one or two arguments');
delimiter = ' ';
if nargin == 2
    delimiter = varargin{1};
    assert(ischar(delimiter), 'strjoin: second argument must be a char');
end

rval = '';
L = length(c);
for idx = 1:(L-1)
    rval = [rval c{idx} delimiter];
end
rval = [rval c{L}];
end
