Emacs Notes

No window mode

set mark : C-2 ; C-@
backward-kill-word: C-M-h , M-backspace

Chinese input , Ubuntu 12.04

> sudo locale-gen zh_CN.UTF-8
> LC_CTYPE="zh_CN.UTF-8" emacs
> sudo gedit /etc/environment
> add
> LC_CTYPE="zh_CN.UTF-8"

Comments

ess roxygen

C-c C-o

Doxymacs

http://emacser.com/doxymacs.htm

Font size change

C-x C-+ / -

Set Mark

C-2
C-S-Space

put backup file together

(setq backup-directory-alist
  '((".*" . "~/.emacs.d/var/backups")))

encoding

when I save a file with encoding utf-16, it is not recognized by git, so need to change the encoding of the existing file:

C-x RET f utf-8 RET

Indent

indent-regidly
C-u 4 C-x TAB

Reference

rectangle command

select the region starting and ending with the left top and bottom right of the rectangle

C-x r k # kill
C-x r y # paste

reference: http://www.gnu.org/software/emacs/manual/html_node/emacs/Rectangles.html

Macro

C-x (
C-x )
C-x e : repeat last macro
C-u 10 C-x e : repeat last 10 times

Cua Mode

M-x cua-mode
C-ENTER : mark
ENTER: mark
M-n : insert number

Move

M-x forward-whitespace
M-< # begin
M-> # end

Scratch

C-j : eval line
C-x b *scratch* RET : open scratch
M-x text-mode
M-x apropos-command -mode$ RET : search for mode

Help

C-h f # function
C-h v # variable
C-h w # keyboard
C-h m # short cut for this major? mode

Flyspell

correction:

M-$

Zoom

C-x C-+
C-x C--
(global-set-key [C-mouse-4] 'text-scale-increase)
(global-set-key [C-mouse-5] 'text-scale-decrease)

Detect from Terminal

(when (display-graphic-p)
    (your)
	(code))

Ispell on mac

brew install ispell
(setq ispell-program-name "/path/to/ispell")

searching for program no such file

Use homebrew, then

(setq exec-path (append exec-path '("/usr/local/bin")))

/bin/sh: pdflatex: command not found

M-x getenv for PATH did not show /usr/texbin,

(getenv "PATH")
(setenv "PATH"
(concat
"/usr/texbin" ":"

(getenv "PATH")))

Org-mode

Schedule time: C-c C-s,

 3-2-5         ⇒ 2003-02-05
 2/5/3         ⇒ 2003-02-05
 14            ⇒ 2006-06-14
 12            ⇒ 2006-07-12
 2/5           ⇒ 2007-02-05
 Fri           ⇒ nearest Friday after the default date
 sep 15        ⇒ 2006-09-15
 feb 15        ⇒ 2007-02-15
 sep 12 9      ⇒ 2009-09-12
 12:45         ⇒ 2006-06-13 12:45
 22 sept 0:34  ⇒ 2006-09-22 0:34
 w4            ⇒ ISO week for of the current year 2006
 2012 w4 fri   ⇒ Friday of ISO week 4 in 2012
 2012-w04-5    ⇒ Same as above

yasnippet

`(my-insert-date)`

escape special $ and back-quote by \

Time-stamp

work in the first 8 lines of the file

Two formats:

Time-stamp: <>
Time-stamp: " "

Pattern:

"8/Time-stamp:[ \t]+\\\\?[\"<]+%:y-%02m-%02d %02H:%02M:%02S %u\\\\?[\">]"

reference: http://emacs-fu.blogspot.com/2008/12/automatic-timestamps.html

Multi-cursor

insert increasing number: C-1 M-x mc/insert-numbers

Outline-Minor-Mode

http://www.emacswiki.org/emacs/OutlineMinorMode

; Outline-minor-mode key map
(define-prefix-command 'cm-map nil "Outline-")
; HIDE
(define-key cm-map "q" 'hide-sublevels)    ; Hide everything but the top-level headings
(define-key cm-map "t" 'hide-body)         ; Hide everything but headings (all body lines)
(define-key cm-map "o" 'hide-other)        ; Hide other branches
(define-key cm-map "c" 'hide-entry)        ; Hide this entry's body
(define-key cm-map "l" 'hide-leaves)       ; Hide body lines in this entry and sub-entries
(define-key cm-map "d" 'hide-subtree)      ; Hide everything in this entry and sub-entries
; SHOW
(define-key cm-map "a" 'show-all)          ; Show (expand) everything
(define-key cm-map "e" 'show-entry)        ; Show this heading's body
(define-key cm-map "i" 'show-children)     ; Show this heading's immediate child sub-headings
(define-key cm-map "k" 'show-branches)     ; Show all sub-headings under this heading
(define-key cm-map "s" 'show-subtree)      ; Show (expand) everything in this heading & below
; MOVE
(define-key cm-map "u" 'outline-up-heading)                ; Up
(define-key cm-map "n" 'outline-next-visible-heading)      ; Next
(define-key cm-map "p" 'outline-previous-visible-heading)  ; Previous
(define-key cm-map "f" 'outline-forward-same-level)        ; Forward - same level
(define-key cm-map "b" 'outline-backward-same-level)       ; Backward - same level
(global-set-key "\M-o" cm-map)

Dired

v: view file, view mode
q: quit window
C: sopy
R: rename
D: delete
+: create new dir
m: mark
u: unmark
U: unmark all
%m: mark by pattern
%m \.html$

navigation:

g:refresh
^: go to parent

paranthesis:

C-M-n     forward-list  Move forward over a parenthetical group
C-M-p     backward-list  Move backward over a parenthetical group
C-M-f     forward-sexp Move forward over a balanced expression
C-M-b     backward-sexp  Move backward over a balanced expression
C-M-k     kill-sexp  Kill balanced expression forward
C-M-SPC   mark-sexp  Put the mark at the end of the sexp.

M-g M-g : go to line
M-g-g: go to line

change keybinding/Define keys

(global-set-key (kbd "M-a") 'function-name)

Describe key:

C-M-F8
kbd "<C-M-f8>"

Regexp