Merge branch 'dev' of super:otp into dev

1 files changed, 113 insertions, 0 deletions

diff --git a/lib/megaco/src/engine/megaco_config_misc.erl b/lib/megaco/src/engine/megaco_config_misc.erl
new file mode 100644
index 0000000000..0a1601c766
--- /dev/null
+++ b/lib/megaco/src/engine/megaco_config_misc.erl
@@ -0,0 +1,113 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2011-2011. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+%%
+%%----------------------------------------------------------------------
+%% Purpose: Utility module for megaco_config 
+%%----------------------------------------------------------------------
+%% 
+
+-module(megaco_config_misc).
+
+%% Application internal exports
+-export([
+         verify_bool/1, 
+
+	 verify_int/1, verify_int/2, verify_int/3, 
+	 verify_strict_int/1, verify_strict_int/2, verify_strict_int/3, 
+
+	 verify_uint/1, verify_uint/2, 
+	 verify_strict_uint/1, verify_strict_uint/2
+        ]).
+
+
+%%%----------------------------------------------------------------------
+%%% API
+%%%----------------------------------------------------------------------
+
+verify_bool(true)  -> true;
+verify_bool(false) -> true;
+verify_bool(_)     -> false.
+
+
+%% verify_int(Val) -> boolean()
+verify_int(infinity) -> true;
+verify_int(Val)      -> verify_strict_int(Val).
+
+%% verify_int(Val, Max) -> boolean()
+verify_int(Int, infinity) ->
+    verify_int(Int);
+verify_int(infinity, _Max) ->
+    true;
+verify_int(Int, Max) ->
+    verify_strict_int(Int) andalso verify_strict_int(Max) andalso (Int =< Max).
+
+%% verify_int(Val, Min, Max) -> boolean()
+verify_int(infinity, Min, infinity) ->
+    verify_strict_int(Min);
+verify_int(Val, Min, infinity) ->
+    verify_strict_int(Val) andalso 
+	verify_strict_int(Min) andalso (Val >= Min);
+verify_int(Int, Min, Max) ->
+    verify_strict_int(Int, Min, Max).
+
+%% verify_strict_int(Val) -> boolean()
+verify_strict_int(Int) when is_integer(Int) -> true;
+verify_strict_int(_)                        -> false.
+
+%% verify_strict_int(Val, Max) -> boolean()
+verify_strict_int(Int, infinity) ->
+    verify_strict_int(Int);
+verify_strict_int(Int, Max) ->
+    verify_strict_int(Int) andalso verify_strict_int(Max) andalso (Int =< Max).
+
+%% verify_strict_int(Val, Min, Max) -> boolean()
+verify_strict_int(Val, Min, Max) 
+  when (is_integer(Val) andalso 
+	is_integer(Min) andalso 
+	is_integer(Max) andalso 
+	(Val >= Min)    andalso 
+	(Val =< Max)) ->
+    true;
+verify_strict_int(_Val, _Min, _Max) ->
+    false.
+    
+
+%% verify_uint(Val) -> boolean()
+verify_uint(infinity) -> true;
+verify_uint(Val)      -> verify_strict_uint(Val).
+
+%% verify_uint(Val, Max) -> boolean()
+verify_uint(Int, infinity) ->
+    verify_uint(Int);
+verify_uint(infinity, _Max) ->
+    true;
+verify_uint(Int, Max) ->
+    verify_strict_int(Int, 0, Max).
+
+%% verify_strict_uint(Val) -> boolean()
+verify_strict_uint(Int) when is_integer(Int) andalso (Int >= 0) -> true;
+verify_strict_uint(_)                                           -> false.
+
+%% verify_strict_uint(Val, Max) -> boolean()
+verify_strict_uint(Int, infinity) ->
+    verify_strict_uint(Int);
+verify_strict_uint(Int, Max) ->
+    verify_strict_int(Int, 0, Max).
+