13 lines
221 B
Nix
13 lines
221 B
Nix
with builtins;
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let join' = join': sep: sl:
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if sl == []
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then ""
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else if length sl == 1
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then head sl
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else "${head sl}${sep}${join' join' sep (tail sl)}";
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join = join' join';
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in
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join
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