Merge pull request #205557 from ncfavier/concatLines

      subtractLists mutuallyExclusive groupBy groupBy';

    inherit (self.strings) concatStrings concatMapStrings concatImapStrings

      intersperse concatStringsSep concatMapStringsSep

      concatImapStringsSep makeSearchPath makeSearchPathOutput

      concatImapStringsSep concatLines makeSearchPath makeSearchPathOutput

      makeLibraryPath makeBinPath optionalString

      hasInfix hasPrefix hasSuffix stringToCharacters stringAsChars escape

      escapeShellArg escapeShellArgs

    # List of input strings

    list: concatStringsSep sep (lib.imap1 f list);

  /* Concatenate a list of strings, adding a newline at the end of each one.

     Defined as `concatMapStrings (s: s + "\n")`.

     Type: concatLines :: [string] -> string

     Example:

       concatLines [ "foo" "bar" ]

       => "foo\nbar\n"

  */

  concatLines = concatMapStrings (s: s + "\n");

  /* Construct a Unix-style, colon-separated search path consisting of

     the given `subDir` appended to each of the given paths.

    expected = "a,b,c";

  };

  testConcatLines = {

    expr = concatLines ["a" "b" "c"];

    expected = "a\nb\nc\n";

  };

  testSplitStringsSimple = {

    expr = strings.splitString "." "a.b.c.d";

    expected = [ "a" "b" "c" "d" ];