adds new utility function enable handling of anon functions in various handlers

src/jsx_utils.erl

@@ -23,7 +23,10 @@
 
 -module(jsx_utils).
 
--export([parse_opts/1, extract_opts/1, nice_decimal/1, json_escape/2]).
+-export([parse_opts/1, extract_opts/1]).
+-export([nice_decimal/1]).
+-export([json_escape/2]).
+-export([handle_event/2, init/1]).
 
 -include("../include/jsx_opts.hrl").
 
@@ -63,6 +66,7 @@ extract_parser_opts([K|Rest], Acc) ->
     end.
 
 
+
 %% conversion of floats to 'nice' decimal output. erlang's float implementation 
 %%   is almost but not quite ieee 754. it converts negative zero to plain zero 
 %%   silently, and throws exceptions for any operations that would produce NaN 
@@ -262,6 +266,13 @@ to_hex(15) -> $f;
 to_hex(X) -> X + 48.    %% ascii "1" is [49], "2" is [50], etc...
 
 
+
+handle_event(Event, {F, undefined}) -> F(Event), {F, undefined};
+handle_event(Event, {F, State}) -> {F, F(Event, State)}.
+
+init(State) -> State.
+
+
 %% eunit tests
 -ifdef(TEST).
 -include_lib("eunit/include/eunit.hrl").