diff options
author | Sander van der Burg <s.vanderburg@tudelft.nl> | 2010-08-02 16:10:01 +0000 |
---|---|---|
committer | Sander van der Burg <s.vanderburg@tudelft.nl> | 2010-08-02 16:10:01 +0000 |
commit | beee6e5e1d1ab456a162de827440cd4890514a2b (patch) | |
tree | a23eca80901a10f818b01ed631faaa2f09b148d1 /pkgs/lib | |
parent | cc84ac9e84c2e1be9eabd0033437486efb42277c (diff) |
Moved 'zip' function from nixos/lib/build-vms.nix
svn path=/nixpkgs/trunk/; revision=22882
Diffstat (limited to 'pkgs/lib')
-rw-r--r-- | pkgs/lib/lists.nix | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/pkgs/lib/lists.nix b/pkgs/lib/lists.nix index 9b8334a5b9dfc..e279d6a80f47b 100644 --- a/pkgs/lib/lists.nix +++ b/pkgs/lib/lists.nix @@ -177,4 +177,10 @@ rec { let loop = l: if tail l == [] then head l else loop (tail l); in loop list; + # Zip two lists together. + zip = xs: ys: + if xs != [] && ys != [] then + [ {first = head xs; second = head ys;} ] + ++ zip (tail xs) (tail ys) + else []; } |