RosettaCodeData/Task/Menu/J/menu.j

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CHOICES =: ];._2 'fee fie;huff and puff;mirror mirror;tick tock;'
PROMPT =: 'Which is from the three pigs? '
showMenu =: smoutput@:(,"1~ (' ' ,.~ 3 ": i.@:(1 ,~ #)))
read_stdin =: 1!:1@:1:
menu =: '? '&$: :(4 : 0)
NB. use: [prompt] menu choice_array
CHOICES =. y
if. 0 = # CHOICES do. return. end.
PROMPT =. x
whilst. RESULT -.@:e. i. # CHOICES do.
showMenu CHOICES
smoutput PROMPT
RESULT =. _1 ". read_stdin''
end.
RESULT {:: CHOICES
)