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-rw-r--r--system/doc/extensions/funs1.erl125
1 files changed, 0 insertions, 125 deletions
diff --git a/system/doc/extensions/funs1.erl b/system/doc/extensions/funs1.erl
deleted file mode 100644
index b1a3e21525..0000000000
--- a/system/doc/extensions/funs1.erl
+++ /dev/null
@@ -1,125 +0,0 @@
--module(funs1).
--compile(export_all).
--import(lists, [reverse/1]).
-
-%1
-map(F, [H|T]) -> [F(H)|map(F, T)];
-map(F, []) -> [].
-%1
-
-%2
-foreach(F, [H|T]) ->
- F(H),
- foreach(F, T);
-foreach(F, []) ->
- ok.
-%2
-%
-%3
-all(Pred, [H|T]) ->
- case Pred(H) of
- true -> all(Pred, T);
- false -> false
- end;
-all(Pred, []) ->
- true.
-%3
-%4
-any(Pred, [H|T]) ->
- case Pred(H) of
- true -> true;
- false -> any(Pred, T)
- end;
-any(Pred, []) ->
- false.
-%4
-%5
-takewhile(Pred, [H|T]) ->
- case Pred(H) of
- true -> [H|takewhile(Pred, T)];
- false -> []
- end;
-takewhile(Pred, []) ->
- [].
-%5
-%6
-dropwhile(Pred, [H|T]) ->
- case Pred(H) of
- true -> dropwhile(Pred, T);
- false -> [H|T]
- end;
-dropwhile(Pred, []) ->
- [].
-%6
-%7
-splitlist(Pred, L) ->
- splitlist(Pred, L, []).
-
-splitlist(Pred, [H|T], L) ->
- case Pred(H) of
- true -> splitlist(Pred, T, [H|L]);
- false -> {reverse(L), [H|T]}
- end;
-splitlist(Pred, [], L) ->
- {reverse(L), []}.
-%7
-
-flatmap(F, [Hd|Tail]) ->
- F(Hd) ++ flatmap(F, Tail);
-flatmap(F, []) -> [].
-
-%8
-foldl(F, Accu, [Hd|Tail]) ->
- foldl(F, F(Hd, Accu), Tail);
-foldl(F, Accu, []) -> Accu.
-%8
-%
-foldr(F, Accu, [Hd|Tail]) ->
- F(Hd, foldr(F, Accu, Tail));
-foldr(F, Accu, []) -> Accu.
-%9
-filter(F, [H|T]) ->
- case F(H) of
- true -> [H|filter(F, T)];
- false -> filter(F, T)
- end;
-filter(F, []) -> [].
-%9
-%10
-mapfoldl(F, Accu0, [Hd|Tail]) ->
- {R,Accu1} = F(Hd, Accu0),
- {Rs,Accu2} = mapfoldl(F, Accu1, Tail),
- {[R|Rs], Accu2};
-mapfoldl(F, Accu, []) -> {[], Accu}.
-%10
-mapfoldr(F, Accu0, [Hd|Tail]) ->
- {Rs,Accu1} = mapfoldr(F, Accu0, Tail),
- {R,Accu2} = F(Hd, Accu1),
- {[R|Rs],Accu2};
-mapfoldr(F, Accu, []) -> {[], Accu}.
-%11
-first(Pred, [H|T]) ->
- case Pred(H) of
- true ->
- {true, H};
- false ->
- first(Pred, T)
- end;
-first(Pred, []) ->
- false.
-%11
-%
-compose(F, G) ->
- fun(X) ->
- F(G(X))
- end.
-
-%20
-iterate(N, F) ->
- iterate(N, N+1, F).
-
-iterate(Stop, Stop, _) ->
- [];
-iterate(N, Stop, Fun) ->
- [Fun(N)|iterate(N+1, Stop, Fun)].
-%20