Use 'execute-extended-command' from Evil command mode (M-x is undefined) - emacs

I just started experimenting with emacs. And as a Vim user I did not want to bother use it without installing evil-mode first.
However, evil-mode seems to break the emacs keybinding for 'execute-extended-command' (M-x).
I really don't care about this keybinding, and I noticed that I can call for example 'list-packages' from the evil command-mode and it works just fine.
Only thing I am missing now, is the TAB auto completion in command mode, like typing 'list-' TAB and then it will show or iterate available commands.
Is this possible with evil-mode?
or is there eventually an easy way to fix this keybinding?
I am using:
debian jessie
GNU Emacs 24.4.1
EDIT:
My .emacs file:
(require 'package)
(push '("marmalade" . "http://marmalade-repo.org/packages/")
package-archives )
(push '("melpa" . "http://melpa.milkbox.net/packages/")
package-archives)
(add-to-list 'load-path "~/.emacs.d/evil")
(require 'evil)
(evil-mode 1)
(define-key evil-normal-state-map [escape] 'keyboard-quit)
(define-key evil-visual-state-map [escape] 'keyboard-quit)
(define-key minibuffer-local-map [escape] 'minibuffer-keyboard-quit)
(define-key minibuffer-local-ns-map [escape] 'minibuffer-keyboard-quit)
(define-key minibuffer-local-completion-map [escape] 'minibuffer-keyboard-quit)
(define-key minibuffer-local-must-match-map [escape] 'minibuffer-keyboard-quit)
(define-key minibuffer-local-isearch-map [escape] 'minibuffer-keyboard-quit)
I attempted to add Modifier-x
(global-set-key (kbd "C-x") 'execute-extended-command)
and Alt-x
(global-set-key (kbd "A-x") 'execute-extended-command)
but these attempts didn't fix the keybinding, so I've decided to roll with super key
(global-set-key (kbd "s-x") 'execute-extended-command)

Fixing keyboard bindings is quite easy - just add this line to your .emacs file (or evaluate it in the scratch buffer):
(global-set-key (kbd "< put your key combination here >") 'execute-extended-command)
You can use reference from ErgoEmacs to understand how to provide key combinations for kbd function.
And IMO it's better to use standard Emacs means to run commands - use your evil-mode command mode for evil-related things, and use M-x/execute-extended-command to work with Emacs.

Related

Bind C-z in evil mode to escape to shell

In Emacs evil mode, the key combo C-z is to toggle evil mode. I would like to rebind it to escape to shell instead. How would I do this ?
I have read about eshell, it seems to be great, but for now I would like to work with my zsh shell first.
Multi term seems to designed for this job, but I think escaping to shell is fine for me, since I'm used to this flow in Vim.
Thanks for reading.
Perhaps what you need is C-x C-z.
Just have the same requirement, and here's my configurations:
(add-to-list 'load-path "~/.emacs.d/evil")
(add-to-list 'load-path "~/.emacs.d/evil/lib")
(setq evil-toggle-key ""); remove default evil-toggle-key C-z, manually setup later
(require 'evil)
(evil-mode 1)
;; remove all keybindings from insert-state keymap, use emacs-state when editing
(setcdr evil-insert-state-map nil)
;; ESC to switch back normal-state
(define-key evil-insert-state-map [escape] 'evil-normal-state)
Ref:
1. https://gist.github.com/kidd/1828878
2. https://askubuntu.com/questions/99160/how-to-remap-emacs-evil-mode-toggle-key-from-ctrl-z
C-x C-z will suspend the frame and return you to the shell.
C-z as you mention toggles evil mode on/off.
I swap their behavior in evil like so:
(define-key evil-motion-state-map (kbd "C-z") 'suspend-frame)
(define-key evil-emacs-state-map (kbd "C-z") 'suspend-frame)
(define-key evil-motion-state-map (kbd "C-x C-z") 'evil-emacs-state)
(define-key evil-emacs-state-map (kbd "C-x C-z") 'evil-exit-emacs-state)
See this commit for an example (where I also make C-z emulate vim-behavior in insert/replace mode).

ido-completion-map keys not working when ergoemacs is enable

When using ergo emacs, for some reason M-l and M-j (forward-char and backward-char respectively) don't work properly in the minibuffer (with ido mode).
I've tried setting the ido-completion-map with the following:
(add-hook 'ido-setup-hook
(lambda ()
(define-key ido-completion-map (kbd "M-k") 'ido-next-match)
(define-key ido-completion-map (kbd "M-i") 'ido-prev-match)
(define-key ido-completion-map (kbd "M-l") 'ido-next-match)
(define-key ido-completion-map (kbd "M-j") 'ido-prev-match)))
but these don't seem to stick.
I seem to be having a similar problem to this person: ido-mode binding masked by global-set-key but none of the solutions seems to work for me
Any help would be very appreciated
Kind regards
Nimai
Although the instructions at the outset of ido.el suggest using:
;; Customization
;; -------------
;;
;; Customize the Ido group to change the Ido functionality.
;;
;; To modify the keybindings, use the ido-setup-hook. For example:
;;(add-hook 'ido-setup-hook 'ido-my-keys)
;;
;;(defun ido-my-keys ()
;; "Add my keybindings for ido."
;; (define-key ido-completion-map " " 'ido-next-match)
;; )
I recently found that using the ido-common-completion-map had better luck when using a frame-switch function -- the original poster can substitute his / her own preferred keyboard shortcuts instead of m-tab and/or m-S-tab:
(add-hook 'ido-setup-hook 'ido-my-keys)
(defun ido-my-keys ()
"Add my keybindings for ido."
(define-key ido-common-completion-map (kbd "<M-tab>") 'ido-next-match)
(define-key ido-common-completion-map (kbd "<M-S-tab>") 'ido-prev-match) )
I have met the save problem, i'm using Emacs 24.4 with ergoemacs-mode-5.14.7.3 (i don't use the latest version of ergoemacs because it has the speed issue. See: github issue). After a lot of searching, i finally find this github commit, and get it work by adding below code to my emacs init file:
after enable ergoemacs-mode:
(when ido-mode
(global-set-key [remap ido-magic-forward-char] 'ido-next-match)
(global-set-key [remap ido-magic-backward-char] 'ido-prev-match))
Hope it helps, thanks!

How to get easy nav window motions in evil-mode?

In vim I have this in my .vimrc:
" Easy window navigation
map <C-h> <C-w>h
map <C-j> <C-w>j
map <C-k> <C-w>k
map <C-l> <C-w>l
How do I get the easy window nav in evil-mode?
Also, in vim "+ will copy to my system clipboard? This doesn't seem to work in emacs.
$ emacs --version
GNU Emacs 24.3.1 Copyright (C) 2013 Free Software Foundation, Inc. GNU
Emacs comes with ABSOLUTELY NO WARRANTY. You may redistribute copies
of Emacs under the terms of the GNU General Public License. For more
information about these matters, see the file named COPYING.
$ cat .emacs
;;
;; Package manager and better repos
(require 'package)
(add-to-list 'package-archives
'("marmalade" .
"http://marmalade-repo.org/packages/"))
(add-to-list 'package-archives '("melpa" . "http://melpa.milkbox.net/packages/"))
(package-initialize)
(setq backup-directory-alist `(("." . "~/.emacs.d/saves")))
;; Indents, tab as spaces
(setq-default indent-tabs-mode nil)
(setq default-tab-width 2)
;; evil-mode
(eval-after-load "evil"
'(progn
(define-key evil-normal-state-map (kbd "C-h") 'evil-window-left)
(define-key evil-normal-state-map (kbd "C-j") 'evil-window-down)
(define-key evil-normal-state-map (kbd "C-k") 'evil-window-up)
(define-key evil-normal-state-map (kbd "C-l") 'evil-window-right)))
(require 'evil)
(evil-mode 1)
;(setcdr evil-insert-state-map nil)
;(define-key evil-insert-state-map [escape] 'evil-normal-state)
;; Fun stuff
(require 'jabber-autoloads)
(require 'jabber)
You can add the key bindings you want to use to evil-normal-state-map:
(eval-after-load "evil"
'(progn
(define-key evil-normal-state-map (kbd "C-h") 'evil-window-left)
(define-key evil-normal-state-map (kbd "C-j") 'evil-window-down)
(define-key evil-normal-state-map (kbd "C-k") 'evil-window-up)
(define-key evil-normal-state-map (kbd "C-l") 'evil-window-right)))
Wrapping the code into eval-after-load is necessary to ensure that evil-normal-state-map is defined/available when making the calls to define-key.
If you want to make the same bindings available in other "states" (such as "Motion" state) as well, just add them to the corresponding key maps as shown above (in the case of "Motion" state, the corresponding map is called evil-motion-state-map).
To get Emacs to use the system clipboard, try setting x-select-enable-clipboard to a non-nil value:
(setq x-select-enable-clipboard t)
There are also specific commands for killing and yanking that use the clipboard. From the documentation:
clipboard-kill-region:
Kill the region, and save it in the X clipboard.
clipboard-kill-ring-save:
Copy region to kill ring, and save in the X clipboard.

Redefining keys in emacs' ENSIME scala mode

I'm trying to redefine the "M-." in the ENSIME mode so that it runs auto-complete instead of ensime-edit-definition. Which is the default binding. I have the following code in the .emacs:
(defun my-scala-mode()
(ensime-mode)
(local-set-key [return] 'newline-and-indent)
(local-unset-key (kbd "M-."))
(local-set-key (kbd "M-.") 'auto-complete)
(global-unset-key (kbd "M-."))
(global-set-key (kbd "M-.") 'auto-complete)
;(scala-electric-mode)
(yas/minor-mode-on))
(add-hook 'scala-mode-hook 'my-scala-mode)
However, once ensime mode loads, and somehow redefines the keys back to the default. If I comment out "(ensime-mode)" then it maps correctly.
What should I do here? Is there another mode hook I'm missing? Or should the order be different?
Thank you
Apparently ensime-mode is a minor-mode, so its bindings take precedence over the major-mode's bindings. And local-set-key affects the major mode's bindings. You might want to do something like the following (guarantedd 100% untested) instead:
(require 'ensime)
(define-key ensime-mode-map (kbd "M-.") 'auto-complete)
or
(add-hook 'ensime-mode-hook (lambda () (define-key ensime-mode-map (kbd "M-.") nil)))

Useful keyboard shortcuts and tips for ESS/R

I would like to ask regular ESS/R users what key bindings do they use frequently and tips on using ESS/R.
I have set several shortcuts in my .emacs file. The most useful are:
C-tab to switch between the R command line and the file (similar to josh answer, but much faster):
(global-set-key [C-tab] 'other-window)
Control and up/down arrow keys to search history with matching what you've already typed:
(define-key comint-mode-map [C-up] 'comint-previous-matching-input-from-input)
(define-key comint-mode-map [C-down] 'comint-next-matching-input-from-input)
Comment-uncomment a selected region with C-d or C-maj-d
(defun uncomment-region (beg end)
"Like `comment-region' invoked with a C-u prefix arg."
(interactive "r")
(comment-region beg end -1))
(define-key ess-mode-map (kbd "C-d") 'comment-region)
(define-key ess-mode-map (kbd "C-S-d") 'uncomment-region)
Also I've also enabled CUA mode (from options menu) and reconfigured quite a lot of shortcuts to require only two keystrokes (instead of four in standard mode):
;; Delete selection when pressing [delete] key
(delete-selection-mode t)
;; ESS Mode (.R file)
(define-key ess-mode-map "\C-l" 'ess-eval-line-and-step)
(define-key ess-mode-map "\C-p" 'ess-eval-function-or-paragraph-and-step)
(define-key ess-mode-map "\C-r" 'ess-eval-region)
;; iESS Mode (R console)
(define-key inferior-ess-mode-map "\C-u" 'comint-kill-input)
(define-key inferior-ess-mode-map "\C-w" 'backward-kill-word)
(define-key inferior-ess-mode-map "\C-a" 'comint-bol)
(define-key inferior-ess-mode-map [home] 'comint-bol)
;; Comint Mode (R console as well)
(define-key comint-mode-map "\C-e" 'comint-show-maximum-output)
(define-key comint-mode-map "\C-r" 'comint-show-output)
(define-key comint-mode-map "\C-o" 'comint-kill-output)
;; Search with C-f / C-F (control-maj-F for backware search)
(global-set-key "\C-f" 'isearch-forward)
(global-set-key (kbd "C-S-f") 'isearch-backward)
(define-key isearch-mode-map "\C-f" 'isearch-repeat-forward)
(define-key isearch-mode-map (kbd "C-S-f") 'isearch-repeat-backward)
;; Save with C-s / C-S
(global-set-key (kbd "C-s") 'save-buffer)
(global-set-key (kbd "C-S-s") 'write-file)
;; need to redefine them for isearch mode (don't know why)
(define-key isearch-mode-map (kbd "C-s") 'save-buffer)
(define-key isearch-mode-map (kbd "C-S-s") 'write-file)
;; Pause = dedicate window.
(defun toggle-current-window-dedication ()
(interactive)
(let* ((window (selected-window))
(dedicated (window-dedicated-p window)))
(set-window-dedicated-p window (not dedicated))
(message "Window %sdedicated to %s"
(if dedicated "no longer " "")
(buffer-name))))
(global-set-key [pause] 'toggle-current-window-dedication)
;; delete = delete
(global-set-key [delete] 'delete-char)
;; C-b = list buffers
(global-set-key (kbd "C-b") 'bs-show)
You will find many more useful shortcuts in ESS documentation.
C-c C-z ess-switch-to-end-of-ESS
is nice to jump from your source file that you are editing foo.R to the R console
I found this link to be extremely helpful. It provides elisp code to make Shift+Enter do many common tasks in a context dependent fashion.
http://kieranhealy.org/blog/archives/2009/10/12/make-shift-enter-do-a-lot-in-ess/
Great stuff, have been using it for ages. Unfortunately as of 15-11-2013 the uncomment key binding may not work due to EMACS changes (I think, at least it was working before I loaded the latest version). This is because the default uncomment function has 3 arguments but the one defined above has 2. The best way to fix this is to simply delete the uncomment function from the code and retain the keybinding, so it uses the default uncomment function. Or in other words just use this:
(define-key ess-mode-map (kbd "C-d") 'comment-region)
(define-key ess-mode-map (kbd "C-S-d") 'uncomment-region)
M-n and M-p in the ESS R console for next/previous command.