Re: Problem extending a table

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

> table.invert = function (t)
> 	local i = {}
> 	for k in pairs(t) do
> 		i[t[k]] = true
> 	end
> 	return i
> end

A faster version that avoids double indexing:

  table.invert = function (t)
  	local i = {}
  	for k,v in pairs(t) do
  		i[v] = true
  	end
  	return i
  end