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.emacs
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.emacs
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(add-to-list 'load-path "~/.emacs.d/")
;; M-{up,down} to scroll buffer
(defun scroll-down-in-place (n)
(interactive "p")
(previous-line n)
(scroll-down n))
(defun scroll-up-in-place (n)
(interactive "p")
(next-line n)
(scroll-up n))
;; disable selection highlighting
(setq transient-mark-mode nil)
;; whitespace mode
(require 'whitespace)
(setq whitespace-style
(quote (face trailing space-after-tab space-before-tab indentation)))
;; use ibuffer for buffer menu
(global-set-key (kbd "C-x C-b") 'ibuffer)
;; change ibuffer columns width
(setq ibuffer-formats
'((mark modified read-only " "
(name 24 24 :left :elide) " "
(size 9 -1 :right) " "
(mode 16 16 :left :elide) " " filename-and-process)
(mark " " (name 16 -1) " " filename)))
;; group items in ibuffer by type
(require 'ibuf-ext)
(setq ibuffer-default-sorting-mode 'alphabetic)
(setq ibuffer-saved-filter-groups
(quote (("default"
("emacs" (name . "^*"))
("dired" (mode . dired-mode))
("source" (or
(name . "\\.c$")
(name . "\\.S$")
(name . "\\.s$")
(name . "\\.h$")
(name . "\\.sh$")
(name . "\\.mk$")
(name . "akefile$")))
("devicetree" (or
(name . "\\.dts")
(name . "\\dtsi")))
("gdb" (or
(mode . gdb-breakpoints-mode)
(mode . gdb-frames-mode)
(mode . gdb-inferior-io-mode)
(mode . gdb-locals-mode)
(mode . gdb-registers-mode)
(mode . gnus-custom-mode)
(mode . grep-mode)
(mode . gud-mode)))
))))
(add-hook 'ibuffer-mode-hook
(lambda ()
(ibuffer-switch-to-saved-filter-groups "default")))
;; indent with tabs
(defun c-mode-linux()
(interactive)
(setq c-default-style "linux"
c-basic-offset 8)
(setq-default indent-tabs-mode t))
;; indent with 4 spaces
(defun c-mode-qemu()
(interactive)
(setq-default indent-tabs-mode nil)
(setq c-default-style "linux"
c-basic-offset 4))
(add-hook 'c-mode-common-hook 'c-mode-linux)
;(add-hook 'c-mode-common-hook 'c-mode-qemu)
;; integration with cscope to index C sources
(require 'xcscope)
;; Enable versioned files in a dedicated directory
(setq make-backup-files t)
(setq version-control t)
(setq backup-directory-alist (quote ((".*" . "~/.emacs_backups/"))))
(setq delete-old-versions t)
;; echo keystrokes immediately
(setq echo-keystrokes 0.01)
;; display time in the modeline
; (setq display-time-24hr-format t)
; (setq display-time-day-and-date t)
; (display-time)
;; save position in files
(require 'saveplace)
(setq save-place-file "~/.emacs.d/saveplace")
(setq-default save-place t)
;; show column number in mode line
(column-number-mode 1)
;; disable menu-bar
(menu-bar-mode -1)
;; linum mode: show line numbers
; (require 'linum)
; (add-hook 'find-file-hook (lambda () (linum-mode 1)))
;; highlight matching parenthesis
(when (fboundp 'show-paren-mode)
(show-paren-mode t)
(setq show-paren-style 'parenthesis))
;; don't show startup screen
(custom-set-variables
'(inhibit-startup-screen t))
;; fast access to recent files
(require 'recentf)
(recentf-mode 1)
(setq recentf-max-menu-items 20)
(global-set-key "\C-x\ \C-r" 'recentf-open-files)
;;gdb default path for gud
; (setq gud-gdb-command-name "/usr/local/cross/arm32/bin/arm-linux-gnueabi-gdb --annotate=3")
;; darken regions in "#if 0"
(defun cpp-highlight-if-0/1 ()
(interactive)
(setq cpp-known-face '(background-color . "lightgray"))
(setq cpp-unknown-face 'default)
(setq cpp-face-type 'dark)
(setq cpp-known-writable 't)
(setq cpp-unknown-writable 't)
(setq cpp-edit-list
'((#("0" 0 1
(fontified nil))
(background-color . "lightgray")
nil
both nil)))
(cpp-highlight-buffer t))
(defun cpp-darken-disabled ()
(cpp-highlight-if-0/1)
(add-hook 'after-save-hook 'cpp-highlight-if-0/1 'append 'local)
)
(add-hook 'c-mode-common-hook 'cpp-darken-disabled)
(require 'open-resource)
(global-set-key "\C-\M-r" 'open-resource)
(setq open-resource-repository-directory "~/work/")
(setq open-resource-ignore-patterns (quote ("/target/" "~$" ".old$")))
;; Customizing colors used in diff mode
(defun custom-diff-colors ()
"update the colors for diff faces"
(set-face-attribute
'diff-added nil :foreground "SeaGreen")
(set-face-attribute
'diff-removed nil :foreground "Red")
(set-face-attribute
'diff-hunk-header nil :foreground "purple")
(set-face-attribute
'diff-file-header nil :foreground "MediumBlue")
(set-face-attribute
'diff-header nil :foreground "purple"))
(eval-after-load "diff-mode" '(custom-diff-colors))
(setq large-file-warning-threshold 20000000)
(defun occur-symbol-at-point ()
(interactive)
(let ((sym (thing-at-point 'symbol)))
(if sym
(push (regexp-quote sym) regexp-history)) ;regexp-history defvared in replace.el
(call-interactively 'occur)))
;; global keybindings:
;; http://stackoverflow.com/questions/683425/globally-override-key-binding-in-emacs
(defvar my-keys-minor-mode-map (make-keymap) "my-keys-minor-mode keymap.")
;; shortcuts for navigating windows and buffers, optimized for dvorak layout :)
(define-key my-keys-minor-mode-map (kbd "M-o") 'other-window)
(define-key my-keys-minor-mode-map (kbd "M-k") 'delete-other-windows)
(define-key my-keys-minor-mode-map (kbd "M-e") 'ibuffer)
(define-key my-keys-minor-mode-map (kbd "M-n") 'next-buffer)
(define-key my-keys-minor-mode-map (kbd "M-p") 'previous-buffer)
(define-key my-keys-minor-mode-map (kbd "M-q") 'fill-paragraph)
(define-key my-keys-minor-mode-map (kbd "C-x C-b") 'ibuffer)
(define-key my-keys-minor-mode-map (kbd "C-o") 'occur-symbol-at-point)
(define-key my-keys-minor-mode-map (kbd "M-c") 'compile)
(define-key my-keys-minor-mode-map (kbd "M-g") 'goto-line)
(define-key my-keys-minor-mode-map (kbd "M-r") 'rgrep)
(define-key my-keys-minor-mode-map [M-up] 'scroll-down-in-place)
(define-key my-keys-minor-mode-map [M-down] 'scroll-up-in-place)
(define-minor-mode my-keys-minor-mode
"A minor mode so that my key settings override annoying major modes."
t " my-keys" 'my-keys-minor-mode-map)
(my-keys-minor-mode 1)
;; shell scripts indentation
(setq sh-basic-offset 8
sh-indentation 8)
(setq-default sh-indent-for-case-label 0)
(setq-default sh-indent-for-case-alt '+)
;; org-mode
(define-key my-keys-minor-mode-map (kbd "M-s RET") 'org-insert-todo-heading)
;; avoid fsync
(setq write-region-inhibit-fsync t)
;; dired
(require 'dired-x)
(setq-default dired-omit-files-p t)
(setq dired-omit-files "^\\...+$\\|\\.o$\\|\\.cmd$")
(setq dired-listing-switches "-aBhl --group-directories-first")
(add-hook 'dired-mode-hook
(lambda ()
(define-key dired-mode-map (kbd "C-<up>")
(lambda () (interactive) (find-alternate-file "..")))))
;; dired single buffer mode
;;
;; (put 'dired-find-alternate-file 'disabled nil)
;; (defun th-dired-up-directory ()
;; "Go up one directory and don't create a new dired buffer but
;; reuse the current one."
;; (interactive)
;; (find-alternate-file ".."))
;; (defun th-dired-find-file ()
;; "Find directory reusing the current buffer and file creating a
;; new buffer."
;; (interactive)
;; (if (file-directory-p (dired-get-file-for-visit))
;; (dired-find-alternate-file)
;; (dired-find-file)))
;; (defun th-dired-mode-init ()
;; (local-set-key (kbd "^") 'th-dired-up-directory)
;; (local-set-key (kbd "RET") 'th-dired-find-file))
;; (add-hook 'dired-mode-hook 'th-dired-mode-init)