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function b = isweekly(str) % --*-- Unitary tests --*--
% Tests if the input can be interpreted as a weekly date.
%
% INPUTS
% o str string.
%
% OUTPUTS
% o b integer scalar, equal to 1 if str can be interpreted as a weekly date or 0 otherwise.
% Copyright (C) 2012-2013 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/>.
if ischar(str)
b = ~isempty(regexp(str,'^-?[0-9]*[Ww]([1-9]|[1-4][0-9]|5[0-2])$'));
else
b = 0;
end
%@test:1
%$
%$ date_1 = '1950W2';
%$ date_2 = '1950w2';
%$ date_3 = '-1950w2';
%$ date_4 = '1950w22';
%$ date_5 = '1950 azd ';
%$ date_6 = '1950Y';
%$ date_7 = '1950Q3';
%$ date_8 = '1950m54';
%$
%$ t(1) = dyn_assert(isweekly(date_1),1);
%$ t(2) = dyn_assert(isweekly(date_2),1);
%$ t(3) = dyn_assert(isweekly(date_3),1);
%$ t(4) = dyn_assert(isweekly(date_4),1);
%$ t(5) = dyn_assert(isweekly(date_5),0);
%$ t(6) = dyn_assert(isweekly(date_6),0);
%$ t(7) = dyn_assert(isweekly(date_7),0);
%$ t(8) = dyn_assert(isweekly(date_8),0);
%$ T = all(t);
%@eof:1
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