findNextNonDeletedIndex method
Finds the next non-deleted index, or the end of the point array if none @param index @return the next non-deleted index, if any or inputLine.length if there are no more non-deleted indices
Implementation
int findNextNonDeletedIndex(int index) {
int next = index + 1;
while (next < inputLine.length && isDeleted[next] == DELETE) next++;
return next;
}