connection:
  random_selection: "l:random_player | j:turn"
  player_o_branch: "j:turn | l:player_o_filter | l:player_o | l:referee"
  player_x_branch: "j:turn | l:player_x_filter | l:player_x | l:referee"
  last_draw: "l:referee | j:loop | l:draw | d:output"
  looper: "j:loop | l:turn_swapper | j:turn"
drain:
  output: { destination: '-' }
launch:
  random_player:
    cmd: "bash"
    arg:
      - '-c'
      - 'echo $((RANDOM % 2))::::::::: | sed "s/1/X/" | sed "s/0/O/"'
  player_o_filter: { cmd: "grep", arg: [ "--line-buffered", "^O" ] }
  player_o:
    cmd: "gawk"
    arg: [ '-F', ':', '-v', 'PLAYER=O', '-f', 'examples/tic-tac-toe/player.awk' ]
  player_x_filter: { cmd: "grep", arg: [ "--line-buffered", "^X" ] }
  player_x:
    cmd: "gawk"
    arg: [ '-F', ':', '-v', 'PLAYER=X', '-f', 'examples/tic-tac-toe/player.awk' ]
  referee:
    cmd: "gawk"
    arg: ['-F', ':', '-f', './examples/tic-tac-toe/referee.awk', 'NF=10', 'OFS=:']
  draw:
    cmd: "gawk"
    arg: [ '-F', ':', '-f', 'examples/tic-tac-toe/draw.awk' ]
  turn_swapper:
    cmd: "sed"
    arg:
      - "--unbuffered"
      - |
        s/^O/9/
        s/^X/O/
        s/^9/X/