function string = cell2str(cellstr)
%CELL2STR Convert a 2-D cell array to a string in MATLAB syntax.
%   STR = CELL2STR(CELLSTR) converts the 2-D CELLSTR to a 
%   MATLAB string so that EVAL(STR) produces the original cell-array.
%   Works as corresponding MAT2STR but for cell array instead of 
%   scalar matrices.
%
%   Example
%       cellstr = {'U-234','Th-230'};
%       cell2str(cellstr) produces the string '{''U-234'',''Th-230'';}'.
%
%   See also MAT2STR, STRREP, CELLFUN, EVAL.
%   Developed by Per-Anders Ekstr?m, 2003-2007 Facilia AB.
%
%   Modified by Nicola Tateo for the LTPDA toolbox, to work also with cell
%   arrays of numbers and to remove the last ';'
% 
% $Id: cell2str.m,v 1.3 2009/07/15 14:09:42 hewitson Exp $
% 

if nargin~=1
    error('CELL2STR:Nargin','Takes 1 input argument.');
end
if ischar(cellstr)
   string = ['''' strrep(cellstr,'''','''''') ''''];
   return
end
if ndims(cellstr)>2
    error('CELL2STR:TwoDInput','Input cell array must be 2-D.');
end

if isempty(cellstr)
  string = '{}';
else
  if iscellstr(cellstr)
    ncols = size(cellstr,2);
    for i=1:ncols-1
      output(:,i) = cellfun(@(x)['''' strrep(x,'''','''''') ''', '],...
        cellstr(:,i),'UniformOutput',false);
    end
    if ncols>0
      output(:,ncols) = cellfun(@(x)['''' strrep(x,'''','''''') ''';'],...
        cellstr(:,ncols),'UniformOutput',false);
    end
    output = output';
    output{numel(output)}(numel(output{numel(output)})) = [];
    string = ['{' output{:} '}'];
  else
    output = mat2str(cell2mat(cellstr));
    if numel(output)>1, string = ['{',output(2:numel(output)-1),'}'];
    else string = ['{',output,'}'];
    end
  end
end