/**
* Returns the index with which to start parsing the next part of the string, once this method is
* done with its part
*/
private int parseInternalInterval(String s, int index, NoteContext context) {
if (context.isRest) {
return index;
}
// An internal interval is indicated by a single quote
if ((index < s.length()) && (s.charAt(index) == '\'')) {
int intervalLength = 0;
// Verify that index+1 is a number representing the interval.
if (index + 1 < s.length()
&& ((s.charAt(index + 1) >= '0') && (s.charAt(index + 1) <= '9'))) {
intervalLength = 1;
}
// We'll allow for the possibility of double-sharps and double-flats.
if ((intervalLength == 1)
&& (index + 2 < s.length())
&& ((s.charAt(index + 2) == '#') || (s.charAt(index + 2) == 'B'))) {
intervalLength = 2;
}
if ((intervalLength == 2)
&& (index + 3 < s.length())
&& ((s.charAt(index + 3) == '#') || (s.charAt(index + 3) == 'B'))) {
intervalLength = 3;
}
context.internalInterval =
Intervals.getHalfsteps(s.substring(index + 1, index + intervalLength + 1));
return index + intervalLength + 1;
} else {
return index;
}
}
