!636

!standard functions

!quicknew

public class main {

  static String prelude =

    "public class main {\n" +

    "  static android.app.Activity androidContext; // set from outside\n" +

    "  public static void main(String[] args) throws Exception {\n";

  static String postlude = "\n" +

    "  }\n" +

    "}\n";

  public static void main(String[] args) throws IOException {

    String code = loadTextFile("input/main.java", null);

    if (code == null)

      throw new RuntimeException("Nothing to do (no input/main.java)");

    code = prelude + code + postlude;

    code = moveImportsUp(code);

    saveTextFile("output/main.java", code);

  }

  static String moveImportsUp(String s) {

    List<String> l = toLines(s);

    new List<String> x;

    Pattern p = Pattern.compile("^\\s*import\\s");

    for (ListIterator<String> i = l.listIterator(); i.hasNext(); ) {

      String line = i.next();

      if (p.matcher(line).find()) {

        x.add(line);

        i.remove();

      }

    }

    x.addAll(l);

    return fromLines(x);

  }

}