Proposed example interface for luerl tables

luerl_table_function.erl

-module(luerl_table_function).
-export(run/0).

%% Get table or table key
%% luerl:table(Fpath, Lua) -> {ok, Value} 
%% Set table or table key
%% luerl:table(Fpath, Value, Lua) -> {ok, Lua} 

run() ->
  Lua0 = luerl:init(),
  %% Set a table using a dict
  %% Equivalent Lua: "return my_table = {ping="pong", echo=function(msg) return msg end};"
  MyTable = [{<<"ping">>,<<"pong">>},{<<"echo">>, fun(Msg) -> Msg end}],
  {ok, Lua1} = luerl:table([my_table], MyTable, Lua0),
  %% Get the whole table
  %% Equivalent Lua: "return my_table;"
  {ok, MyTable} = luerl:table([my_table], Lua1),
  %% Get a value from a key in a table
  %% Equivalent Lua: "return my_table.ping;"
  {ok, <<"pong">>} = luerl:table([my_table,ping], Lua1),
  %% Get a function in a table
  %% Equivalent Lua: "return my_table.echo('hello');"
  {ok, Func} = luerl:table([my_table,echo], Lua1),
  [<<"hello">>] = Func(<<"hello">>),
  %% Set a value for a key in a table
  %% Equivalent Lua: "return my_table.ping = 'pang';"
  {ok, Lua2} = luerl:table([my_table,ping], <<"pang">>, Lua1),
  {ok, <<"pang">>} = luerl:table([my_table,ping], Lua2),
  ok.