elli_ws_undertone

%%
%% Case insensitive value retrieval from a proplist
%%

-module(elli_proplists).

-export([get_value_ci/2,
         get_all_values_ci/2]).

%%
get_value_ci(_Key, []) ->
    undefined;
get_value_ci(Key, [{K, Value}|Rest]) ->
    case elli_bstr:is_equal_ci(Key, K) of
        true ->
            Value;
        false ->
            get_value_ci(Key, Rest)
    end.


%%
get_all_values_ci(Key, Proplist) ->
    get_all_values_ci1(Key, Proplist, []).


get_all_values_ci1(_Key, [], Acc) ->
    lists:reverse(Acc);
get_all_values_ci1(Key, [{K, Value}|Rest], Acc) ->
    case elli_bstr:is_equal_ci(Key, K) of
        true ->
            get_all_values_ci1(Key, Rest, [Value|Acc]);
        false ->
            get_all_values_ci1(Key, Rest, Acc)
    end.