99 Bottles of Beer
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Version vom 3. März 2007, 16:27 Uhr von Phantasus (Diskussion | Beiträge)
Das gute alte 99 bottles in Forth
99 bottles of beer on the wall, 99 bottles of beeeeer . . . , Take one down, pass it around, 98 bottles of beer on the wall. ...
| 99 Bottles of Beer in Reva Forth | by Phantasus
: .bottle ( n -- n) dup 1 >if ." bottles of" space ;then ." bottle of" space ; : .wall ( n -- n ) dup 0 >if dup . .bottle ." beer on the wall," cr ;then ." No more bottles of beer on the wall." cr ; : .beer ( n -- n ) dup . .bottle ." beeeeer . . . ," cr ; : .take ( n -- n-1 ) ." Take one down, and pass it around," cr 1- ; : 99beer ( -- ) 99 100 1 do .wall .beer .take .wall cr loop ." Time to buy more beer!" cr ; 99beer