function f = fullfile(varargin)

%FULLFILE Build full file name from parts.

%   F = fullfile(FOLDERNAME1, FOLDERNAME2, ..., FILENAME) builds a full

%   file specification F from the folders and file name specified. Input

%   arguments FOLDERNAME1, FOLDERNAME2, etc. and FILENAME can be strings,

%   a scalar cell string, or same-sized cell arrays of strings. The output

%   of fullfile is conceptually equivalent to

%

%      F = [FOLDERNAME1 filesep FOLDERNAME2 filesep ... filesep FILENAME]

%

%   except that care is taken to handle the cases when the folders begin or

%   end with a file separator.

%

%   Examples

%     % To build platform dependent paths to files:

%        fullfile(matlabroot,'toolbox','matlab','general','Contents.m')

%

%     % To build platform dependent paths to a folder:

%        fullfile(matlabroot,'toolbox','matlab',filesep)

%

%     % To build a collection of platform dependent paths to files:

%        fullfile(toolboxdir('matlab'),'iofun',{'filesep.m';'fullfile.m'})

%

%   See also FILESEP, PATHSEP, FILEPARTS.

%   Copyright 1984-2012 The MathWorks, Inc.

    narginchk(1, Inf); 

    fileSeparator = filesep; 

    argIsACell = cellfun('isclass', varargin, 'cell'); 

    theInputs = varargin; 

    f = theInputs{1}; 

    try 

        if nargin == 1 

            f = refinePath(f);

            return;

        elseif any(argIsACell) 

            theInputs(cellfun(@(x)~iscell(x)&&isempty(x), theInputs)) = [];

        else 

            theInputs(cellfun('isempty', theInputs)) = ''; 

        end 

        if length(theInputs)>1 

            theInputs{1} = ensureTrailingFilesep(theInputs{1}); 

        end 

        if ~isempty(theInputs) 

            theInputs(2,:) = {fileSeparator}; 

            theInputs{2,1} = ''; 

            theInputs(end) = ''; 

            if any(argIsACell) 

                f = strcat(theInputs{:});

            else 

                f = [theInputs{:}]; 

            end 

        end 

        f = refinePath(f); 

    catch exc

        locHandleError(exc, theInputs(1,:));

    end   

end