code: private int findFrom(char c, int index) {
          int currentIdx = index;
          while (currentIdx < buffer.length()) {
              if (buffer.get(currentIdx) == c) {
                  return currentIdx;
              }
              currentIdx++;
          }
          return -1;
      }
docs: Search for the given character in the buffer, starting at the
  given index.  If not found, return -1.  If found, return the
  index of the character.
  @param c
  @param index