41 lines
679 B
Forth
41 lines
679 B
Forth
# example|99Bottles
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Display the text for the *99 Bottles of Beer* song.
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Declare module constant (prevents reloading when using `import`):
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````
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:example|99Bottles ;
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````
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````
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[ dup putn sp 'bottles puts ]
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[ '1_bottle puts ]
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[ 'no_more_bottles puts ]
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'bottles d:create
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, , ,
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:display-bottles
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dup #2 n:min bottles + fetch call ;
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:display-beer
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display-bottles '_of_beer puts ;
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:display-wall
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display-beer '_on_the_wall puts ;
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:display-take
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'Take_one_down,_pass_it_around puts ;
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:display-verse
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display-wall nl display-beer nl
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n:dec display-take nl display-wall nl ;
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:?dup
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dup 0; ;
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:verses
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[ nl display-verse dup n:-zero? ] while drop ;
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#99 verses
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````
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