Re: table.concat - why so complex?

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

> The reason is likely that table.concat is not considered part of the core 
> interpreter, so it only uses the documented interface, which includes 
> luaL_Buffer and the operations implemented on it.

Yes, that's one reason. Have a look at the implementation of OP_CONCAT in lvm.c.