seeing_is_believing (more n those in a future post).
But Emacs has a very useful "tool" at our disposal: The
Scratch Buffer is (unsurprisingly) a buffer meant to be used and thrown away in every emacs session. It's meant to perform some calculation, test, transient configuration in
elisp and be discarded.
Since I'm working in Ruby most of my time, I've configured it to use
enh-ruby-mode by default.
Here's a very basic setup. We first tell Emacs to use
enh-ruby-mode for the scratch buffer and then we set an initial message.
(setq initial-major-mode 'enh-ruby-mode) (with-current-buffer "*scratch*" (insert "# Welcome to the scratch buffer. Use it at will\n\n"))
Of course, this can be tweaked to use any other available mode and to print any message that we want (or no message at all).
Here's the configuration I use:
(setq initial-major-mode 'enh-ruby-mode) (with-current-buffer "*scratch*" (insert "RUBY_VERSION # =>\n") (if (fboundp 'xmp) (xmp)))
It's pretty similar, but I use the
xmp command to show me my system's Ruby version when Emacs creates the buffer. This keeps me aware of the version I have available out of the box. A small tweak, but I really dig it.
Jumping to the scratch buffer
Finally, here's an extra tip, I have set up a keybinding
C-x C-w to switch to the scratch buffer from wherever I am.
(global-set-key (kbd "C-x C-w") (lambda () (interactive) (switch-to-buffer "*scratch*")))
I hope you found this short post useful.