anchor.diff:  ECHO:
   ECHO     [C] Chocolate Heretic          HERETIC.WAD
   ECHO:
  -ECHO     [H] PrBoom+ Hardware           HERETIC.WAD
  -ECHO     [S] PrBoom+ Software           HERETIC.WAD
  -ECHO:
   ECHO     [2] Zandronum v2               HERETIC.WAD
   ECHO     [3] Zandronum v3               HERETIC.WAD
   ECHO:
  
positive.code: IF "%$%" == "" GOTO:EOF
  
  IF /I "%$%" == "C" CALL :launch_engine    "choco-hexen-setup"    "HEXEN.WAD"
  IF /I "%$%" == "H" CALL :launch_engine    "prboom"               "HEXEN.WAD"
  IF /I "%$%" == "S" CALL :launch_engine_sw "prboom"               "HEXEN.WAD"
  IF /I "%$%" == "2" CALL :launch_engine    "zandronum-2"          "HEXEN.WAD"
  IF /I "%$%" == "3" CALL :launch_engine    "zandronum-3"          "HEXEN.WAD"
  IF /I "%$%" == "G" CALL :menu_gzdoom                             "HEXEN.WAD"
  
negative.code: IF "%$%" == "" GOTO:EOF
  
  IF /I "%$%" == "C" CALL :launch_engine    "choco-strife-setup"   "STRIFE1.WAD"
  IF /I "%$%" == "2" CALL :launch_engine    "zandronum-2"          "STRIFE1.WAD"
  IF /I "%$%" == "3" CALL :launch_engine    "zandronum-3"          "STRIFE1.WAD"
  IF /I "%$%" == "G" CALL :menu_gzdoom                             "STRIFE1.WAD"
  