Mauch MIREX 2010

%

%DEGREES2NOTES Convert a degreelist to an array of notes w.r.t. a root

% 

% [notes, success, errormessage] = degrees2notes(degreelist, root, {verbose})

% 

% Converts the degrees in degreelist to correctly spelled notes with 

% respect to the root note.

% 

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

% 

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

% the screen.

%

% returns: notes (cell array of strings)

%          success (boolean)

%          errormessage (string)

% 

% See also degree2note

%

%

%% 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 [notes, success, errormessage] = degrees2notes(degreelist, root, verbose)

% set verbose default to 0

if nargin < 3

    verbose = 0;

end

errormessage = '';

ilength = length(degreelist);

index = 1;

tempindex = 1;

tempstring = '';

success = 1;

notes = {};

while index <= ilength

    while (degreelist(index) ~= ',')  

        tempstring(tempindex) = degreelist(index);

        tempindex = tempindex +1;

        index = index + 1;

        if(index > ilength)

            break;

        end

        if (degreelist(index) == ',') && (index == ilength)

            success = 0;

            errormessage = sprintf(['Error in degrees2notes: degree list finishes with a comma "' degreelist '"\n']);

        end

    end

        [newnote,ok, error] = degree2note(tempstring,root);

        % concatenate error messages if there are any...

        errormessage = [errormessage error];

        if(ok == 1)

            tempstring = '';

            tempindex = 1;

            notes = [notes; cellstr(newnote)];

            index = index + 1;

        else

            errormessage = [errormessage sprintf(['Error in degrees2notes: incorrect degree in list "' degreelist '"\n'])];

            success = 0;

            index = ilength +1;            

        end

end

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

    fprintf(1,errormessage)

end