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Merge pull request #205557 from ncfavier/concatLines

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lib/strings: add `concatLines`
This commit is contained in:
Silvan Mosberger 2023-01-31 18:05:53 +01:00 committed by GitHub
commit 50e4dbf35b
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3 changed files with 17 additions and 1 deletions
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2
lib/default.nix
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@ -94,7 +94,7 @@ let
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

11
lib/strings.nix
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@ -128,6 +128,17 @@ rec {
# 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.

5
lib/tests/misc.nix
View File

@ -153,6 +153,11 @@ runTests {
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" ];