// reduced NL parsing without quoted strings and some other stuff

static List<String> nlTok2(String s) {

  List<String> tok = new ArrayList<String>();

  int l = s.length();

  int i = 0;

  while (i < l) {

    int j = i;

    char c;

    // scan for whitespace

    while (j < l) {

      c = s.charAt(j);

      if (c == ' ' || c == '\t' || c == '\r' || c == '\n')

        ++j;

      else

        break;

    }

    tok.add(s.substring(i, j));

    i = j;

    if (i >= l) break;

    c = s.charAt(i);

    // scan for non-whitespace

    if (Character.isJavaIdentifierStart(c))

      do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) /*|| s.charAt(j) == '\''*/));

    else if (Character.isDigit(c))

      do ++j; while (j < l && Character.isDigit(s.charAt(j)));

    else

      ++j;

    tok.add(s.substring(i, j));

    i = j;

  }

  if ((tok.size() % 2) == 0) tok.add("");

  return tok;

}