stockholm/lib/default.nix

52 lines
974 B
Nix

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