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22 lines
385 B
Text
22 lines
385 B
Text
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// Fundamental list manipulation functions. Part of the standard library.
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// first, rest, cat
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[
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0 get@
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] 'first def
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[
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#t (f) // True only for the first element
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[] (n) // New list
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[
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[$f] [
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#f (f) // Set flag to false
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drop // Discard first element
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] [
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$n -> (n)
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] ifelse
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] foreach
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$n
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] 'rest def
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