Re: require vs dofile and how to organise many functions

[Sam Roberts <vieuxtech@...>]

On Tue, Jul 21, 2009 at 1:21 AM, steve donovan<steve.j.donovan@gmail.com> wrote:
> On Tue, Jul 21, 2009 at 10:05 AM, startx<startx@plentyfact.org> wrote:
>> 2) my second question is about the use of namespaces: as i have quite
>> a lot of functions, i would like to use a "subnamespace" to group the
>> functions to something like:
>>
>> myproject.core.do_something()
>
> It's actually a common pattern, e.g. look at LuaSocket.   If on the
> LUA_PATH there is a directory myproject, which contains core.lua, then
> require 'myproject.core' will pull it in. If you use module() then the
> 'namespaces' are automatically created for you.

Maybe I misunderstand what you mean by "namespaces are automatically
created for you", because
it doesn't look like it to me.

I would expect after require"hi.bye" to be able to access "hi.bye", if
namespace were created, but that isn't how it works, as far as I can
tell.



~/w/wt/achilles-engine % lua
Lua 5.1.2  Copyright (C) 1994-2007 Lua.org, PUC-Rio
> require"hi.bye"
> = hi
nil
> return  hi.bye
stdin:1: attempt to index global 'hi' (a nil value)
stack traceback:
        stdin:1: in main chunk
        [C]: ?
> = bye
table: 0x64bf50
> return  bye.name
I am bye
>
~/w/wt/achilles-engine % cat hi/bye.lua
module("bye")

name = "I am bye"