christopherh@1: %
christopherh@1: %INTERVALS2NOTES Convert an interval_list to an array of notes w.r.t. a root
christopherh@1: % 
christopherh@1: % [notes, success, errormessage] = intervals2notes(interval_list, root, {verbose})
christopherh@1: % 
christopherh@1: % Converts the intervals in interval_list to correctly spelled notes with 
christopherh@1: % respect to the root note.
christopherh@1: % 
christopherh@1: % Success = 1 if intervals converted correctly, 0 otherwise.
christopherh@1: % 
christopherh@1: % If optional argument 'verbose' is 1, function prints any errormessage to 
christopherh@1: % the screen.
christopherh@1: %
christopherh@1: % returns: notes (cell array of strings)
christopherh@1: %          success (boolean)
christopherh@1: %          errormessage (string)
christopherh@1: % 
christopherh@1: % See also interval2note
christopherh@1: %
christopherh@1: %
christopherh@1: %% Author: Christopher Harte, March 2009
christopherh@1: % 
christopherh@1: % Copyright: Centre for Digital Music, Queen Mary University of London 2005 
christopherh@1: %
christopherh@1: % This file is part of the C4DM Chord Toolkit V2.0  
christopherh@1: %
christopherh@1: % The C4DM Chord Toolkit is free software; you can redistribute it and/or 
christopherh@1: % modify it under the terms of the GNU General Public License as published 
christopherh@1: % by the Free Software Foundation; either version 2 of the License, or
christopherh@1: % (at your option) any later version.
christopherh@1: %
christopherh@1: % The C4DM Chord Toolkit is distributed in the hope that it will be useful,
christopherh@1: % but WITHOUT ANY WARRANTY; without even the implied warranty of
christopherh@1: % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
christopherh@1: % GNU General Public License for more details.
christopherh@1: %
christopherh@1: % You should have received a copy of the GNU General Public License
christopherh@1: % along with the C4DM Toolkit; if not, write to the Free Software
christopherh@1: % Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
christopherh@1: 
christopherh@1: %
christopherh@1: function [notes, success, errormessage] = intervals2notes(interval_list, root, verbose)
christopherh@1: 
christopherh@1: % set verbose default to 0
christopherh@1: if nargin < 3
christopherh@1:     verbose = 0;
christopherh@1: end
christopherh@1: 
christopherh@1: errormessage = '';
christopherh@1: 
christopherh@1: ilength = length(interval_list);
christopherh@1: 
christopherh@1: index = 1;
christopherh@1: 
christopherh@1: tempindex = 1;
christopherh@1: 
christopherh@1: tempstring = '';
christopherh@1: 
christopherh@1: success = 1;
christopherh@1: 
christopherh@1: notes = {};
christopherh@1: 
christopherh@1: 
christopherh@1: while index <= ilength
christopherh@1:     
christopherh@1:    
christopherh@1:     while (interval_list(index) ~= ',')  
christopherh@1:         
christopherh@1:         tempstring(tempindex) = interval_list(index);
christopherh@1:         tempindex = tempindex +1;
christopherh@1:         index = index + 1;
christopherh@1:         
christopherh@1:         if(index > ilength)
christopherh@1:             break;
christopherh@1:         end
christopherh@1:         
christopherh@1:         if (interval_list(index) == ',') && (index == ilength)
christopherh@1:             success = 0;
christopherh@1:             errormessage = sprintf(['Error in intervals2notes: interval list finishes with a comma "' interval_list '"\n']);
christopherh@1:         end
christopherh@1:             
christopherh@1:             
christopherh@1:     end
christopherh@1:     
christopherh@1:         [newnote,ok, error] = interval2note(tempstring,root);
christopherh@1:         % concatenate error messages if there are any...
christopherh@1:         errormessage = [errormessage error];
christopherh@1:         
christopherh@1:         if(ok == 1)
christopherh@1:             tempstring = '';
christopherh@1:             tempindex = 1;
christopherh@1:             notes = [notes; cellstr(newnote)];
christopherh@1:             
christopherh@1:             index = index + 1;
christopherh@1:         else
christopherh@1: 
christopherh@1:             errormessage = [errormessage sprintf(['Error in intervals2notes: incorrect interval in list "' interval_list '"\n'])];
christopherh@1:             success = 0;
christopherh@1:             index = ilength +1;            
christopherh@1:         end
christopherh@1:     
christopherh@1:     
christopherh@1: end
christopherh@1: 
christopherh@1: if (success == 0) && (verbose == 1)
christopherh@1: 
christopherh@1:     fprintf(1,errormessage)
christopherh@1:     
christopherh@1: end    
christopherh@1: 
christopherh@1: