-- Prosody IM

-- Copyright (C) 2008-2011 Florian Zeitz

--

-- This project is MIT/X11 licensed. Please see the

-- COPYING file in the source package for more information.

--

-- luacheck: ignore 113/setfenv 113/loadstring

local load, loadstring, setfenv = load, loadstring, setfenv;

local io_open = io.open;

local envload;

local envloadfile;

if setfenv then

	function envload(code, source, env)

		local f, err = loadstring(code, source);

		if f and env then setfenv(f, env); end

		return f, err;

	end

	function envloadfile(file, env)

		local fh, err, errno = io_open(file);

		if not fh then return fh, err, errno; end

		local f, err = load(function () return fh:read(2048); end, "@"..file);

		fh:close();

		if f and env then setfenv(f, env); end

		return f, err;

	end

else

	function envload(code, source, env)

		return load(code, source, nil, env);

	end

	function envloadfile(file, env)

		local fh, err, errno = io_open(file);

		if not fh then return fh, err, errno; end

		local f, err = load(fh:lines(2048), "@"..file, nil, env);

		fh:close();

		return f, err;

	end

end

return { envload = envload, envloadfile = envloadfile };