!636

!class JavaTok

main {

  psvm {

    String out = "[[import]] java.*; [[import]] javax.*;";

    Set<Integer> markers = new HashSet<Integer>(getFindMarkers(out));

    String in = out.replace("[[", "").replace("]]", "");

    List<String> l = JavaTok.split(in);

    int i = 0;

    for (String t : l) {

      if (t.length() != 0 && markers.contains(i) && markers.contains(i+t.length()))

        System.out.println("Marked token found: " + t + " at " + i);

      i += t.length();

    }

  }

  static List<Integer> getFindMarkers(String s) {

    List<Integer> l = new ArrayList<Integer>();

    int i = 0, ofs = 0;

    while (i < s.length()) {

      int j = s.indexOf("[[", i);

      if (j < 0) break;

      int k = s.indexOf("]]", j+2);

      if (k < 0) break;

      l.add(j-ofs);

      ofs += 2;

      l.add(k-ofs);

      ofs += 2;

      i = k+2;

    }

    /*int[] result = new int[l.size()];

    for (i = 0; i < result.length; i++)

      result[i] = l.get(i);

    return result;*/

    return l;

  }

}