standalone modules

["Francisco Sant'anna" <francisco.santanna@...>]

Hello,

When creating a module sometimes is also useful to run it from the command line as a standalone application.
How to discover the invoke method?
Here's how I'm doing now:

-- checks if the module is being 'required' or executed
local STANDALONE = (debug.getinfo(1).short_src == (arg and arg[0]))
module ((...) or 'default_name')
...
if STANDALONE then
    whatever()
end