anchor.diff:  
   import 'dart:math';
   import 'dart:io';
  +import 'dart:async';
   
   import 'package:mustache/mustache.dart';
   import 'package:sqljocky/sqljocky.dart';
  
positive.code: 
    }
  
    void calCreateSampleData() {
      DateTime $today = new DateTime.now();
      for (int $im = $today.month; $im <= 12; $im++) for (int $id = 4;
          $id < 27;
          $id += _next(5, 16)) for (int $h = 4; $h < 22; $h += _next(1, 22)) {
        if ($im == $today.month && $id < $today.day) continue;
        calCreateBogusEntry($today.year, $im, $id, $h);
      }
    }
  
    void announce() {
      _ap.writeOutput("Hello from md calendar\n");
      calCreateSampleData();
      _ap.writeOutput(_$lines.toString());
      _ap.writeOutput("\n");
    }
  
negative.code:   final _random = new Random();
    int _next(int min, int max) => min + _random.nextInt(max - min);
  
    var _pool;
    bool _tableisCreated = false;
    final String _$calTable = "lwc";
  
    bool _dataLoaded = false;
    final String _bdp = "/include/bogusData";
  