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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Menu/REBOL/menu.rebol Normal file
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REBOL [
Title: "Text Menu"
URL: http://rosettacode.org/wiki/Select
]
choices: ["fee fie" "huff and puff" "mirror mirror" "tick tock"]
choice: ""
valid?: func [
choices [block! list! series!]
choice
][
if error? try [choice: to-integer choice] [return false]
all [0 < choice choice <= length? choices]
]
while [not valid? choices choice][
repeat i length? choices [print [" " i ":" choices/:i]]
choice: ask "Which is from the three pigs? "
]
print ["You chose:" pick choices to-integer choice]