52 lines
974 B
Nix
52 lines
974 B
Nix
{ pkgs, ... }:
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with builtins;
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let
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inherit (pkgs.lib) stringAsChars;
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in
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{
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# "7.4.335" -> "74"
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majmin = with pkgs.lib; x : concatStrings (take 2 (splitString "." x));
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concat = xs :
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if xs == []
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then ""
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else head xs + concat (tail xs)
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;
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flip = f : x : y : f y x;
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# isSuffixOf :: String -> String -> Bool
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isSuffixOf =
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s : xs :
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let
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sn = stringLength s;
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xsn = stringLength xs;
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in
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xsn >= sn && substring (xsn - sn) sn xs == s ;
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removeSuffix =
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s : xs : substring 0 (stringLength xs - stringLength s) xs;
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# setMap :: (String -> a -> b) -> Set String a -> [b]
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#setMap = f: xs: map (k : f k (getAttr k xs)) (attrNames xs);
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# setToList :: Set k a -> [a]
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#setToList = setMap (_: v: v);
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shell-escape =
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let
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isSafeChar = c: match "[-./0-9_a-zA-Z]" c != null;
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in
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stringAsChars (c:
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if isSafeChar c then c
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else if c == "\n" then "'\n'"
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else "\\${c}");
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}
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