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| author | Yury G. Kudryashov <urkud.urkud@gmail.com> | 2008-02-10 17:38:56 +0000 |
|---|---|---|
| committer | Yury G. Kudryashov <urkud.urkud@gmail.com> | 2008-02-10 17:38:56 +0000 |
| commit | e7bc12a93265dce5704be7024e9dbac4f6ec07ae (patch) | |
| tree | 732ce963cdde89b2cc4ab5fa7fc06c71545a3e2d /pkgs/lib | |
| parent | 7753a1c5e970110ad6946b38fb019dca3ffad01a (diff) | |
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* Function concatMap as in Haskell.
svn path=/nixpkgs/branches/stdenv-updates/; revision=10588
Diffstat (limited to 'pkgs/lib')
| -rw-r--r-- | pkgs/lib/default.nix | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/pkgs/lib/default.nix b/pkgs/lib/default.nix index 1018d9609078..0d22070ee98d 100644 --- a/pkgs/lib/default.nix +++ b/pkgs/lib/default.nix @@ -52,6 +52,10 @@ rec { fold (x: y: x + y) ""; + # Map and concatenate the result. + concatMap = f: list: concatLists (map f list); + + # Place an element between each element of a list, e.g., # `intersperse "," ["a" "b" "c"]' returns ["a" "," "b" "," "c"]. intersperse = separator: list: |