/modules/mod_base/filters/filter_add_year.erl

 1%% @author Marc Worrell <marc@worrell.nl>
 2%% @copyright 2010 Marc Worrell
 3%% @doc 'add_year' filter, add one or more years to a date
 4
 5%% Copyright 2010 Marc Worrell
 6%%
 7%% Licensed under the Apache License, Version 2.0 (the "License");
 8%% you may not use this file except in compliance with the License.
 9%% You may obtain a copy of the License at
10%% 
11%%     http://www.apache.org/licenses/LICENSE-2.0
12%% 
13%% Unless required by applicable law or agreed to in writing, software
14%% distributed under the License is distributed on an "AS IS" BASIS,
15%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16%% See the License for the specific language governing permissions and
17%% limitations under the License.
18
19-module(filter_add_year).
20-export([add_year/2, add_year/3]).
21
22add_year(undefined, _Context) ->
23	undefined;
24add_year({{Y,M,D},Time}, _Context) ->
25	{{Y+1,M,D},Time}.
26
27add_year(undefined, _N, _Context) ->
28	undefined;
29add_year({{Y,M,D},Time}, N, _Context) ->
30	{{Y+N,M,D},Time}.
31