Update February 2015 Just noticed that Emacs now (version 25+) has the command comint-clear-buffer, bound to C-c M-o by default, that does what we need here, and probably is preferable to the answers I originally posted below. Options to consider: C-l will recenter the buffer. Pressing it repeatedly cycles the buffer, so that point appears … Read more
Use progn: (if condition (progn (do-something) (do-another-thing))) See sequencing in the manual.
Code wrapped in eval-after-load will be executed only once, so it is typically used to perform one-time setup such as setting default global values and behaviour. An example might be setting up a default keymap for a particular mode. In eval-after-load code, there’s no notion of the “current buffer”. Mode hooks execute once for every … Read more
I found this solution on the EmacsWiki: The problem is the ownership of the directory ~/.emacs.d/server when you also have “Administrators” rights on your account. Create the directory ~/.emacs.d/server and set the owner of this directory to your login name and the problem is gone. As I have a “Dutch” version of Windows 7 I … Read more
Try using symbol-name: (symbol-name ‘some-symbol)
For a more manual approach, you can list all buffers with C-x C-b, mark buffers in the list for deletion with d, and then use x to remove them. I also recommend replacing list-buffers with the more advanced ibuffer: (global-set-key (kbd “C-x C-b”) ‘ibuffer). The above will work with ibuffer, but you could also do … Read more
You can use the C-x0 key combination to delete the current window.
Some variables in Emacs are “buffer-local”, meaning that each buffer is allowed to have a separate value for that variable that overrides the global default. tab-width is a good example of a buffer-local variable. If a variable is buffer-local, then setq sets its local value in the current buffer and setq-default sets the global default … Read more
The system-type variable: system-type is a variable defined in `C source code’. Its value is darwin Documentation: Value is symbol indicating type of operating system you are using. Special values: `gnu’ compiled for a GNU Hurd system. `gnu/linux’ compiled for a GNU/Linux system. `darwin’ compiled for Darwin (GNU-Darwin, Mac OS X, …). `ms-dos’ compiled as … Read more
you may want boundp: returns t if variable (a symbol) is not void; more precisely, if its current binding is not void. It returns nil otherwise. (boundp ‘abracadabra) ; Starts out void. => nil (let ((abracadabra 5)) ; Locally bind it. (boundp ‘abracadabra)) => t (boundp ‘abracadabra) ; Still globally void. => nil (setq abracadabra … Read more