> But Lua lacks #line program makes compiles to Lua difficult to debug :( It should still be possible to use code/line maps to assist in debugging. For example, moonscript provides a code map, which Mobdebug integrates with to provide debugging of moonscript code (using regular Lua debug hooks). You can see the debugger stepping through moonscript code on a screenshot here: http://notebook.kulchenko.com/zerobrane/moonscript-debugging-with-zerobrane-studio Paul.