digraph diagram { rankdir = LR; "8cc.c" [shape=doublecircle]; "8cc" [shape=rect]; "bfasm.rb" [shape=rect]; "bfs" [shape=ellipse]; "8cc.bf" [shape=ellipse]; "bfs " [shape=ellipse]; "1" [shape=diamond,style=filled,label="",height=.1,width=.1]; "bfasm.rb" -> "1" [dir=none]; "bfs" -> "1" [dir=none]; "1" -> "8cc.bf"; "2" [shape=diamond,style=filled,label="",height=.1,width=.1]; "8cc" -> "2" [dir=none]; "8cc.c" -> "2" [dir=none]; "2" -> "bfs"; "3" [shape=diamond,style=filled,label="",height=.1,width=.1]; "8cc.bf" -> "3" [dir=none]; "8cc.c" -> "3" [dir=none]; "3" -> "bfs "; }