Richard Stallman <[EMAIL PROTECTED]> writes: > It is intended to be an option turn off all "extra features". > > On what criterion are these features "extra"?
They are various "decorations" to the basic Emacs frame or functionality. Turning them off, skips over a fairly big (and complex) part of internal redisplay code (e.g. building menu and tool bars which may run quite a deal of lisp code). > > But most important, running emacs -Q when debugging redisplay problems > makes it much easier to know what's going on. > > Why does the blinking cursor relate to this? It means running timers and async Lisp code, and triggers redisplay which may influense how a bug in redisplay manifests itself on the screen. Furthermore, it means you cannot just put a breakpoint on (or anywhere inside) redisplay_internal and then execute some code to generate a specific error... The blinking cursor timer will trigger that breakpoint every second, making it practically impossible to debug such problems. The -Q option has saved me many hours debugging rediplay problems! -- Kim F. Storm <[EMAIL PROTECTED]> http://www.cua.dk _______________________________________________ Emacs-devel mailing list Emacs-devel@gnu.org http://lists.gnu.org/mailman/listinfo/emacs-devel
