Re: require vs dofile and how to organise many functions
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- Subject: Re: require vs dofile and how to organise many functions
- From: Petite Abeille <petite_abeille@...>
- Date: 2009年7月22日 18:53:44 +0200
On Jul 22, 2009, at 12:19 PM, startx wrote:
not that i want to discuss taste only ;) ... but what would be your
alternative suggestion to organise a huge bunch of functions? im open
to try different flavours ...
There are many ways to skin that cat, but I personally use
module( 'MyModule' ) and that's all.
In general, one file, one named module, one private name space, one
public API exposed through meta methods.
For example, assuming a module 'HMAC':
http://dev.alt.textdrive.com/browser/HTTP/HMAC.lua
% cat HMAC.lua
-- import external dependencies
local getmetatable = getmetatable
local setmetatable = setmetatable
-- explicitly name the module
module( 'HMAC' )
-- add meta table when appropriate
local self = setmetatable( _M, {} )
local meta = getmetatable( self )
-- do stuff in the privacy of the module
local function HMAC( aKey, aValue )
end
-- expose stuff to the outside
function meta:__call( aKey, aValue )
return HMAC( aKey, aValue )
end
FWIW, the above convention is followed by Nanoki:
http://dev.alt.textdrive.com/browser/HTTP
As with many other things in Lua, it takes a while to come up with an
organizational style which consistently support one programming
mannerism due to Lua's inherent flexibility.
http://lua-users.org/wiki/LuaStyleGuide
Cheers,
PA.