Fan.Sys.FanStr.numNewlines C# (CSharp) Method

        public static long numNewlines(string self)
        {
            int numLines = 0;
              int len = self.Length;
              for (int i=0; i<len; ++i)
              {
            int c = self[i];
            if (c == '\n') numLines++;
            else if (c == '\r')
            {
              numLines++;
              if (i+1<len && self[i+1] == '\n') i++;
            }
              }
              return numLines;
        }