Re: extending lua load path

[Tom N Harris <telliamed@...>]

On 11/18/2011 03:35 AM, Oliver Mueller wrote:
> Duncan's solution would work for exactly the scenario I described in
> my post...but unfortunately this is not general enough for me. I don't
> know the path of "scripts" in advance (depends on where the user
> decides to store her scripts) so I cannot hard code it into the
> script. I'd need to expand the load path with the path of the
> directory from which the first lua file is loaded.

When you load the file, give it an environment with a version of 
'require' that knows how to find the modules. Something like this,

local lua_require = require
local function build_require(path)
  path = path .. package.config:sub(1,1)
  return function(name)
           -- try to load path..name
           -- or pass the name to lua_require
         end
end
function doscript(filename)
  local env = setmetatable({}, {__index=_G})
  env.require = build_require(dirname(filename))
  return loadin(filename, env)
end

--
- tom
telliamed@whoopdedo.org