Re: A little bit about nothing (was Re: Empty? No. Array? No. Has? Yes.)

[Pierre-Yves Gérardy <pygy79@...>]

Sorry for the noise, either the list or gmail is lagging.
-- Pierre-Yves


On Wed, Jul 3, 2013 at 6:53 PM, Pierre-Yves Gérardy <pygy79@gmail.com> wrote:
> On Wed, Jul 3, 2013 at 6:20 PM, Sean Conner <sean@conman.org> wrote:
>>
>>         function something(mary) --[[ something about mary ]] end
>>
>>   In straight Lua, there is no way for something to know if it was called
>> like:
>>
>>         something()
>>
>> or
>>
>>         something(nil)
>
>     function something(...)
>         if select('#',...) == 0 then
>             -- something about nothing
>         else
>             local mary = ...
>             -- something about mary
>         end
>     end
>
> That being said, it is not concise.
>
> -- Pierre-Yves