A few library functions added.

svn path=/nixpkgs/trunk/; revision=10118
This commit is contained in:
Michael Raskin 2008-01-11 16:58:55 +00:00
parent 437f21219f
commit 5116a523a9

View file

@ -222,6 +222,19 @@ rec {
in uniqList {outputList=newOutputList;
inputList = (tail inputList);};
uniqListExt = {inputList, outputList ? [],
getter ? (x : x), compare ? (x: y: x==y)}:
if (inputList == []) then outputList else
let x=head inputList;
isX = y: (compare (getter y) (getter x));
newOutputList = outputList ++
(if any isX outputList then [] else [x]);
in uniqListExt {outputList=newOutputList;
inputList = (tail inputList);
inherit getter compare;
};
condConcat = name: list: checker:
if list == [] then name else