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function opt = varargin2struct(varargin)
%
% opt=varargin2struct('param1',value1,'param2',value2,...)
% or
% opt=varargin2struct(...,optstruct,...)
%
% convert a series of input parameters into a structure
%
% authors:Qianqian Fang (q.fang <at> neu.edu)
% date: 2012/12/22
%
% input:
% 'param', value: the input parameters should be pairs of a string and a value
% optstruct: if a parameter is a struct, the fields will be merged to the output struct
%
% output:
% opt: a struct where opt.param1=value1, opt.param2=value2 ...
%
% license:
% BSD or GPL version 3, see LICENSE_{BSD,GPLv3}.txt files for details
%
% -- this function is part of JSONLab toolbox (http://iso2mesh.sf.net/cgi-bin/index.cgi?jsonlab)
%
len = length(varargin);
opt = struct;
if (len == 0)
return
end
i = 1;
while (i <= len)
if (isstruct(varargin{i}))
opt = mergestruct(opt, varargin{i});
elseif (ischar(varargin{i}) && i < len)
opt.(lower(varargin{i})) = varargin{i + 1};
i = i + 1;
else
error('input must be in the form of ...,''name'',value,... pairs or structs');
end
i = i + 1;
end
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