2024-04-19 16:56:29 -07:00
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val .select = impure fn(.entries) {
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if .entries is not list: throw "invalid args"
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2023-07-01 11:58:00 -04:00
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if len(.entries) == 0: return ""
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# print the menu
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2024-04-19 16:56:29 -07:00
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writeln join "\n", map(fn(.e, .i) $"\.i:2;: \.e;", .entries, 1..len .entries)
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2023-07-01 11:58:00 -04:00
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2024-04-19 16:56:29 -07:00
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val .idx = number read(
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2023-07-01 11:58:00 -04:00
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"Select entry #: ",
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2024-04-19 16:56:29 -07:00
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fn(.x) {
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if not .x -> RE/^[0-9]+$/: return false
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val .y = number .x
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2023-07-01 11:58:00 -04:00
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.y > 0 and .y <= len(.entries)
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},
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"invalid selection\n", -1,
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)
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.entries[.idx]
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}
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writeln .select(["fee fie", "eat pi", "huff and puff", "tick tock"])
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