require("import") -- the import fn import("keyword_rename_c") -- import lib into global kn=keyword_rename_c--alias -- catching undefined variables local env = _ENV -- Lua 5.2 if not env then env = getfenv () end -- Lua 5.1 setmetatable(env, {__index=function (t,i) error("undefined global variable `"..i.."'",2) end}) -- Check renaming of Lua keywords assert(kn.c_end(5) == 5) assert(kn.c_nil(7) == 7)