/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseChordInversion(String s, int index, NoteContext context) {
if (!context.isChord) {
return index;
}
int inversionCount = 0;
boolean bassNote = false;
int startIndex = index;
boolean checkForInversion = true;
while (checkForInversion) {
if (index < s.length()) {
switch (s.charAt(index)) {
case '^':
index++;
inversionCount++;
break;
case 'C':
index++;
bassNote = true;
break;
case 'D':
index++;
bassNote = true;
break;
case 'E':
index++;
bassNote = true;
break;
case 'F':
index++;
bassNote = true;
break;
case 'G':
index++;
bassNote = true;
break;
case 'A':
index++;
bassNote = true;
break;
case 'B':
index++;
bassNote = true;
break;
case '#':
index++;
break; // presumably the sharp mark followed a note
// For '0', need to differentiate between initial 0 and 0 as a second digit (i.e., 10)
case '0':
index++;
inversionCount = (inversionCount == -1) ? 0 : inversionCount + 10;
break;
case '1':
index++;
inversionCount = 1;
break;
case '2':
index++;
inversionCount = 2;
break;
case '3':
index++;
inversionCount = 3;
break;
case '4':
index++;
inversionCount = 4;
break;
case '5':
index++;
inversionCount = 5;
break;
case '6':
index++;
inversionCount = 6;
break;
case '7':
index++;
inversionCount = 7;
break;
case '8':
index++;
inversionCount = 8;
break;
case '9':
index++;
inversionCount = 9;
break;
// For '[', we're checking for a note number after the inversion marker
case '[':
int indexEndBracket = s.indexOf(']', index);
context.inversionBassNote =
Note.getToneString(Byte.parseByte(s.substring(index + 1, indexEndBracket - 1)));
index = indexEndBracket + 1;
break;
default:
checkForInversion = false;
break;
}
} else {
checkForInversion = false;
}
}
// Modify the note values based on the inversion
if (bassNote) {
context.inversionBassNote = context.inversionBassNote = s.substring(startIndex + 1, index);
} else if (inversionCount > 0) {
context.inversionCount = inversionCount;
}
return index;
}
