add basic submodule support to require

module/loadfile.lua

@@ -12,15 +12,16 @@ function os.spawnfile(p,n,...) -- string string -- number -- spawns a new proces
  return os.spawn(function() local res={pcall(loadfile(p), table.unpack(tA))} computer.pushSignal("process_finished", os.pid(), table.unpack(res)) dprint(table.concat(res)) end,n or p)
 end
 _G.package = {}
-package.loaded = {computer=computer,component=component,fs=fs,buffer=buffer}
+package.loaded = {computer=computer,component=component,fs=fs,buffer=buffer,table=table,string=string,package=package,os=os,math=math,coroutine=coroutine}
 function require(f,force) -- string boolean -- table -- searches for a library with name *f* and returns what the library returns, if possible. if *force* is set, loads the library even if it is cached
  if not package.loaded[f] or force then
   local lib = os.getenv("LIB") or "/boot/lib\n/pkg/lib"
+  local ln = f:gsub("%.","/")
   for d in lib:gmatch("[^\n]+") do
-   if fs.exists(d.."/"..f) then
-    package.loaded[f] = runfile(d.."/"..f)
-   elseif fs.exists(d.."/"..f..".lua") then
-    package.loaded[f] = runfile(d.."/"..f..".lua")
+   if fs.isDirectory(d.."/"..ln) then
+    package.loaded[f] = runfile(d.."/"..ln.."/init.lua")
+   elseif fs.exists(d.."/"..ln..".lua") then
+    package.loaded[f] = runfile(d.."/"..ln..".lua")
    end
   end
  end