https://www.doxygen.nl/download.html https://graphviz.org/download/ 설명 https://www.slideshare.net/arload/doxygen-33932243 https://luckygg.tistory.com/346 @dot digraph finite_state_machine { rankdir=LR; size="8,5" node [shape = doublecircle]; LR_0 LR_3 LR_4 LR_8; node [shape = circle]; LR_0 -> LR_2 [ label = "SS(B)" ]; LR_0 -> LR_1 [ label = "SS(S)" ]; LR_1 -> LR_3 [ label = "S($end)" ]; LR_2 -> ..