26 lines
622 B
Nix
26 lines
622 B
Nix
{ lib }:
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with lib;
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let
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isSymbol = str: isNull (match "^'.+" str);
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stripQuote = head (match "^'(.+)");
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parseStr = str: if (isSymbol str) then (stripQuote str) else ''"${str}"'';
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join-str = concatStringsSep " ";
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toEDN = ds:
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if isString ds then
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parseStr ds
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else
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(if isInt ds then
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ds
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else
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(if isList ds then
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"[ ${join-str (map toEDN ds)} ]"
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else
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(if isAttrs ds then
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"{ ${join-str (mapAttrs (k: v: ":${k} ${toEDN v}") ds)} }"
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else
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throw "unsupported type: ${builtins.typeOf ds}: ${ds}")));
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in { ds }: toEDN ds
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