anchor.diff:  
         // skip showing empty weeks
         for (int d = 0, w0 = 0; d < 7; d++) {
  -        if (_calMtable[w][d] != 0)  w0++;
  +        if (_calMtable[w][d] != 0) w0++;
           if (w0 == 0) continue;
         }
   
  
positive.code: import 'package:path/path.dart' as path;
  
  bool liveSite = false;
  
  class mdCalendar {
  
  
negative.code: 
      for (int i = 0, w = 0; i < mdays; i++) {
        if (i != 0 && wd == 0) w++;
        _calMtable[w][wd] = i + 1;
        wd = (wd + 1) % 7;
      }
    }
  
    String calWeekRef(int y, int m, int w) {
      int i;
      for (i = 0; i < 7; i++) if (_calMtable[w][i] != 0) break;
      if (i == 7) {
        return "";
      }
  