private static int handleSpaces(@NotNull String line, int pos, int delta) {
    int len = line.length();
    while (pos >= 0 && pos < len) {
      final char c = line.charAt(pos);
      if (!Character.isSpaceChar(c)) break;
      pos += delta;
    }
    return pos;
  }
private static int handleSpaces(@NotNull String line, int pos, int delta)