From: ts Date: 2000-08-17T17:51:30+02:00 Subject: [ruby-talk:04493] Re: Invoking an extension after compilation >>>>> "D" == Dave Thomas writes: D> ruby -rStuff prog.rb D> and have 'Stuff' be able to examine prog.rb's parse tree. Have you tried with set_trace_func and intercept the first call to "line" ? Guy Decoux