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Diffstat (limited to 'src/proplutils.erl')
| -rw-r--r-- | src/proplutils.erl | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/proplutils.erl b/src/proplutils.erl new file mode 100644 index 0000000..a78a630 --- /dev/null +++ b/src/proplutils.erl @@ -0,0 +1,40 @@ +%% @author Guido Günther <agx@sigxcpu.org> +%% @copyright 2013 godiug.net +%% +%% This library is free software; you can redistribute it and/or +%% modify it under the terms of the GNU Lesser General Public +%% License as published by the Free Software Foundation; either +%% version 3 of the License, or (at your option) any later version. +%% +%% This library is distributed in the hope that it will be useful, +%% but WITHOUT ANY WARRANTY; without even the implied warranty of +%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +%% Lesser General Public License for more details. +%% +%% You should have received a copy of the GNU Lesser General Public +%% License along with this library. If not, see +%% <http://www.gnu.org/licenses/>. +%% +%% @doc Simplify proplist manipulation a bit + +-module(proplutils). +-export([delete/2, + delete_except/2 + ]). + +%% @doc Delete all Keys from Proplist +delete(Key, PropList) when is_atom(Key) -> + proplists:delete(Key, PropList); +delete([], Proplist) -> Proplist; +delete([H | T], PropList) -> + PL = proplists:delete(H, PropList), + delete(T, PL). + +%% @doc Delete all keys except Keys from PropList +delete_except(Key, PropList) when is_atom(Key) -> + delete_except([Key], PropList); +delete_except(Keys, PropList) when is_list(Keys) -> + [{X, Y} || {X, Y} <- PropList, lists:member(X, Keys)]. + + + |