% DEBLANK DEBLANK Remove trailing blanks from a string
% 
% Usage
% 
% The deblank function removes spaces at the end of a string
% when used with the syntax
% 
%    y = deblank(x)
% 
% where x is a string, in which case, all of the extra spaces
% in x are stripped from the end of the string.  Alternately,
% you can call deblank with a cell array of strings
% 
%    y = deblank(c)
% 
% in which case each string in the cell array is deblanked.
function y = deblank(x)
  if (isstr(x))
    y = deblank_string(x);
  elseif (iscellstr(x))
    y = cell(size(x));
    for i=1:numel(x)
      y{i} = deblank_string(x{i});
    end
  else
    error('deblank expects a string or cell array of strings as an argument');
  end

function y = deblank_string(x)
  ndx = max(find(~isspace(x)));
  y = x(1:ndx);

