Re: Quest: real world "Lua array with holes" usage

[Luiz Henrique de Figueiredo <lhf@...>]

> The first use case that came to mind was JSON deserializers, where the
> obvious mapping of null to nil causes problems with arrays.

That's the whole point: one probably shouldn't not force the semantics
of one language into another. In this case, and others, it's simpler
and clearer to define
	null = {}
once and use it where needed. if you must skip over these when traversing
a table, then that's what your semantics dictates and you must do it.
Just do not try to do this with nil, which has its own, clear semantics
in Lua.