digraph DFA
{
   size = "8 11";

   subgraph cluster0
   {
      label = "even scanline";
      color = red;
      fontcolor = red;

      even_line_0 [label = "flush", shape = doublecircle];
      even_line_1 [label = ""];
   }

   subgraph cluster1
   {
      label = "odd scanline";
      color = green;
      fontcolor = green;

      odd_line_0 [label = "flush"];
      odd_line_1 [label = ""];
   }

   // Skip odd characters
   even_line_0 -> even_line_1 [label = "?"];
   even_line_0 -> odd_line_0 [label = "\\n"];
   even_line_1 -> even_line_0 [label = "?"];
   even_line_1 -> odd_line_0 [label = "\\n"];

   // Skip odd lines
   odd_line_0 -> odd_line_1 [label = "?"];
   odd_line_0 -> even_line_1 [label = "\\n"];
   odd_line_1 -> odd_line_1 [label = "?"];
   odd_line_1 -> even_line_1 [label = "\\n"];
}