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: mfileparse.m
    path of file: ./repos/MCITF/Code/MCITF/EdgeBox/piotr_toolbox/toolbox/external/m2html/private
    
    the code of the file until where you have to start completion: function s = mfileparse(mfile, mdirs, names, options)
%MFILEPARSE Parsing of an M-file to obtain synopsis, help and references
%  S = MFILEPARSE(MFILE, MDIRS, NAMES, OPTIONS) parses the M-file MFILE looking
%  for synopsis (function), H1 line, subroutines and todo tags (if any).
%  It also fills in a boolean array indicating whether MFILE calls M-files 
%  defined by MDIRS (M-files directories) AND NAMES (M-file names).
%  The input OPTIONS comes from M2HTML: fields used are 'verbose', 'global'
%  and 'todo'.
%  Output S is a structure whose fields are:
%     o synopsis: char array (empty if MFILE is a script)
%     o h1line: short one-line description into the first help line
%     o subroutine: cell array of char containing subroutines synopsis
%     o hrefs: boolean array with hrefs(i) = 1 if MFILE calls mdirs{i}/names{i}
%     o todo: structure containing information about potential todo tags

    
function s = mfileparse(mfile, mdirs, names, options)
%MFILEPARSE Parsing of an M-file to obtain synopsis, help and references
%  S = MFILEPARSE(MFILE, MDIRS, NAMES, OPTIONS) parses the M-file MFILE looking
%  for synopsis (function), H1 line, subroutines and todo tags (if any).
%  It also fills in a boolean array indicating whether MFILE calls M-files 
%  defined by MDIRS (M-files directories) AND NAMES (M-file names).
%  The input OPTIONS comes from M2HTML: fields used are 'verbose', 'global'
%  and 'todo'.
%  Output S is a structure whose fields are:
%     o synopsis: char array (empty if MFILE is a script)
%     o h1line: short one-line description into the first help line
%     o subroutine: cell array of char containing subroutines synopsis
%     o hrefs: boolean array with hrefs(i) = 1 if MFILE calls mdirs{i}/names{i}
%     o todo: structure containing information about potential todo tags
%
%  See also M2HTML

%  Copyright (C) 2003 Guillaume Flandin <Guillaume@artefact.tk>
%  $Revision: 1.0 $Date: 2003/29/04 17:33:43 $

error(nargchk(3,4,nargin));
if nargin == 3,
	options = struct('verbose',1, 'globalHypertextLinks',0, 'todo',0);
end