Mauch MIREX 2010

%

%NOTES2PITCHCLASSES convert a note list to an array pitchclasses

% 

% [pitchclasses, success, errormessage] = notes2pitchclasses(notes, {verbose})

% 

% Converts a cell array of note strings to an array of pitch class integer 

% values. Pitch class values are referenced w.r.t. C = 0. 

% 

% Success = 1 if symbols converted correctly, 0 otherwise.

% 

% If optional argument 'verbose' is 1, function prints any errormessage to 

% the screen.

% 

% calls note2pitchclass

% 

% returns:  pitchclasses (array of integers)

%           success (boolean)

%           errormessage (string)

%

%

% Author: Christopher Harte,  August 2005

% 

% Copyright: Centre for Digital Music, Queen Mary University of London 2005 

%

% This file is part of the C4DM Chord Toolkit.  

%

% The C4DM Chord Toolkit is free software; you can redistribute it and/or 

% modify it under the terms of the GNU General Public License as published 

% by the Free Software Foundation; either version 2 of the License, or

% (at your option) any later version.

%

% The C4DM Chord Toolkit is distributed in the hope that it will be useful,

% but WITHOUT ANY WARRANTY; without even the implied warranty of

% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

% GNU General Public License for more details.

%

% You should have received a copy of the GNU General Public License

% along with the C4DM Toolkit; if not, write to the Free Software

% Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

%

function [pitchclasses, success, errormessage] = notes2pitchclasses(notes, verbose)

% set verbose default to 0

if nargin < 2

    verbose = 0;

end

errormessage = '';

ilength = length(notes);

index = 1;

success = 1;

pitchclasses = [];

while index <= ilength

        [pitchclasses(index), success, errormessage] = note2pitchclass(char(notes(index)));

        if success

            index=index+1;

        else

            errormessage = [errormessage sprintf(['Error in notes2pitchclasses: couldn''t convert notes "' notes '"\n'])];

            index = ilength +1;            

        end

end

if (success == 0) && (verbose == 1)

    fprintf(1,errormessage)

end