Re: Index table from string?

["J. Perkins" <jason@...>]

Russ Webb wrote:
> On the Lua side, something like
> return dostring('return config.' .. key)
> would work but not be very efficient (does that matter?).

Speed is not that important, no.

The problem with dostring() is it can't reference 'self', or any 
local. I could work around it by setting self to some mangled 
global, getting the value, and then clearing the global but that's 
kind of ugly.

	function Registry:getValue(key)
	   _REGISTRY_SELF = self
	   local value = dostring("return _REGISTRY_SELF." .. key)
	   _REGISTRY_SELF = nil
	   return value
	end

It is possible that there could be more than one registry object at 
a time, and when Lua coroutines get mixed in there too, it could get 
ugly.

Jason