-- Override Lua's loadfile to use lua.ReadFile.
function loadfile(file)
	local data, err = lua.ReadFile(file)
	if not data then
		return nil, ("what " .. file)
	end

	local chunk, err = load(
		function()
			local ret = data
			data = nil
			return ret
		end,
		"@" .. file
	);

	if not chunk then return nil, err end

	-- Set the environment, like loadfile does.
	setfenv(chunk, getfenv(2))
	return chunk
end

-- Override Lua's dofile to use our loadfile.
function dofile(file)
	if not file then
		error( "dofile(nil) unsupported", 2 )
	end
	local chunk, err = loadfile(file)
	if not chunk then
		error(err, 2)
	end
        return chunk()
end

-- Like ipairs(), but returns only values.
function ivalues(t)
	local n = 0
	return function()
		n = n + 1
		return t[n];
	end
end

Var = lua.GetThreadVariable

-- (c) 2006 Glenn Maynard
-- All rights reserved.
--
-- Permission is hereby granted, free of charge, to any person obtaining a
-- copy of this software and associated documentation files (the
-- "Software"), to deal in the Software without restriction, including
-- without limitation the rights to use, copy, modify, merge, publish,
-- distribute, and/or sell copies of the Software, and to permit persons to
-- whom the Software is furnished to do so, provided that the above
-- copyright notice(s) and this permission notice appear in all copies of
-- the Software and that both the above copyright notice(s) and this
-- permission notice appear in supporting documentation.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
-- THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
-- INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
-- OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
-- OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
-- OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
-- PERFORMANCE OF THIS SOFTWARE.