You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: spm_eeg_read_bsa.m
    path of file: ./repos/spm12
    
    the code of the file until where you have to start completion: function sconfounds = spm_eeg_read_bsa(bsa)
% This function reads a definition of spatial confounds from a BESA
% *.bsa file and returns an sconfounds struct with the following fields
% .label - labels of channels
% .coeff - matrix of coefficients (channels x components)
% .bad - logical vector - channels marked as bad.
% _______________________________________________________________________
% Copyright (C) 2008 Wellcome Trust Centre for Neuroimaging

% Vladimir Litvak

sconfounds = [];
sconfound
    
function [tok] = tokenize(str, sep, rep)

% TOKENIZE cuts a string into pieces, returning a cell array
%
% Use as
%   t = tokenize(str, sep)
%   t = tokenize(str, sep, rep)
% where str is a string and sep is the separator at which you want
% to cut it into pieces.
%
% Using the optional boolean flag rep you can specify whether repeated
% seperator characters should be squeezed together (e.g. multiple
% spaces between two words). The default is rep=1, i.e. repeated
% seperators are treated as one.

% Copyright (C) 2003-2006, Robert Oostenveld
%
% $Log: tokenize.m,v $
% Revision 1.5  2006/05/10 07:15:22  roboos
% allow for squeezing multiple separators into one
%
% Revision 1.4  2006/01/30 14:56:41  roboos
% fixed another stupid bug in previous cvs commit
%
% Revision 1.3  2006/01/30 14:55:44  roboos
% fixed stupid bug in previous cvs commit
%
% Revision 1.2  2006/01/30 13:38:18  roboos
% replaced depend