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Emacs is a famous text editor, famous by its flexibility and extensibility.  One manual describes it as "the extensible, customizable, self-documenting, real-time display editor".
This page is designed to give users a good place to share their config and settings for a nice emacs setup.
== Installing emacs ==
To install {{Package|app-editors/emacs}}, run the following command:
###i## emerge -av emacs
for the standard gnu emacs {{Package|app-editors/xemacs}} and
###i## emerge -av xemacs
for the 1980 created fork of emacs, both should handle the same, while emacs on its own stands here for both. If you install additional extensions for both you might need to add <tt>app-emacs</tt> or <tt>app-xemacs</tt> to the package as there are two different versions for both.
== What emacs is and what it is not ==
# Emacs is primarily a text editor and not a word processor, it concentrates on manipulating any kind of text, rather than manipulating the font and look. It is client and GUI based, so can be used on local box in graphical environments with a GUI and remote on a server in a client mode.
# Emacs provides commands for manipulate every kind of text and syntax highlighting.
=== Customizability ===
'''Emacs is highly customizable:'''
* the <tt>customize</tt> extension, which allows settings of customized variables, such as color themes, graphical interface, etc. This part is intended for emacs beginners, who do not want to work with Emacs lisp code.
* combine keystrokes to execute complex makros.
* using Emacs Lisp. Designed for the emacs professional.
=== Extensibility ===
As a result of the above points, Emacs behaviour can be easily definied to all text behavings without limit. Like some of the examples below show you:
* AUCTeX, A suite for LaTeX and other TeX versions,
* ERC, A Emacs IRC client,
* ORG-mode, A Emacs PIM and Orga tool
* Wanderlust, A highly flexible Mail tool for Emacs
== User Configs ==
=== golodhrim's config ===
==== .emacs ====
Edit the file <tt>~/.emacs</tt>:
;; General Settings ;;
(setq emacs-root-dir (concat (getenv "HOME") "/em/"))
(setq inhibit-startup-message t)    ;; Suppress the startup message
(setq standard-indent 4)            ;; Default indent level is 3 chars
(setq-default indent-tabs-mode nil) ;; Indent with spaces, not tabs
(setq make-backup-files nil)          ;; Enable backup files.
(setq version-control nil)            ;; Enable versioning with default values
(setq backup-directory-alist (quote ((".*" . "~/.emacs_backups/"))))  ;; Save all backup file in this directory.
(line-number-mode 1)                ;; Show line-number in the mode line
(column-number-mode 1)              ;; Show column-number in the mode line
(setq auto-fill-mode 1)            ;; Line wrap
(set-default-font "Inconsolata-12")
(setq browse-url-browser-function 'browse-url-generic
      browse-url-generic-program "google-chrome")
(global-set-key (kbd "C-<prior>") 'previous-buffer)
(global-set-key (kbd "C-<next>" ) 'next-buffer    )
(setq load-path (cons "~/.emacs.d/plugins" load-path))
(setq global-font-lock-mode 1)
(show-paren-mode 1)
;; el-get setup ;;
(add-to-list 'load-path "~/.emacs.d/el-get/el-get")
(unless (require 'el-get nil t)
    (url-retrieve-synchronously "https://raw.github.com/golodhrim/el-get/master/el-get-install.el")
(el-get 'sync)
;; mediawiki ;;
(require 'mediawiki)
;; Org-mode stuff ;;
;; Tell emacs where org-mode is
;;(setq load-path (cons "/usr/share/emacs/site-lisp/org-mode/" load-path))
;;(setq load-path (cons "/usr/share/emacs/site-lisp/org-mode/contrib/" load-path))
(require 'org-install) ;; Tell emacs to use org-mode
(add-to-list 'auto-mode-alist '("\\.org$" . org-mode)) ;; Turn on org-mode for all *.org files
;; Some key sequences
(define-key global-map "\C-cl" 'org-store-link)
(define-key global-map "\C-ca" 'org-agenda)
(global-set-key [f9]    'org-archive-subtree-default)
(setq org-log-done t) ;; I have no idea what this does, it was in the manual -- think it controls whether or not to log time completed for tasks
(setq org-directory "~/notes")
;; Files that should be included in agenda views:
(setq org-agenda-files (list "~/notes/business.org"
(setq org-todo-keywords '((type "TODO" "Postponed" "Upcoming" "Doing" "|" "DONE(#)"))) ;; TODO workflows
(setq org-tag-alist '(("work" . ?k) ("personal" . ?p) ("organization" . ?o) ("writing" . ?w) ("code" . ?c) ("blog" . ?b) ("funtoo" . ?f) ("social" . ?s))) ;; Most-used tags, with shortcuts
;; Capture stuff
(setq org-default-notes-file "~/.org/capture.org")
(define-key global-map "\C-cc" 'org-capture)
(setq org-refile-targets '((org-agenda-files :level . 1)(org-agenda-files :level . 2)))
(setq org-refile-use-outline-path 'file)
(setq org-capture-templates
      '(("t" "Todo" entry (file+headline "~/.org/capture.org" "Tasks")
            "- TODO %?\n  %i\n  %a")
        ("j" "Journal" entry (file+datetree "~/.org/journal.org")
            "- %?\nEntered on %U\n  %i\n  %a")))
(setq org-mobile-directory "~/Dropbox/MobileOrg")
(setq org-mobile-use-encryption)
(setq org-mobile-use-encryption-password "PASSWORD")
(setq org-mobile-inbox-for-pull "~/notes/mobileorg/inbox.org")
;; Markdown Mode ;;
(require 'markdown-mode)
(add-to-list 'auto-mode-alist '("\\.markdown$" . markdown-mode))
(add-to-list 'auto-mode-alist '("\\.md$" . markdown-mode))
;; Python IDE ;;
  '((indent-tabs-mode . nil)
    (fill-column      . 78)
    (c-basic-offset  . 4)
    (c-offsets-alist  . ((substatement-open . 0)
                          (inextern-lang    . 0)
                          (arglist-intro    . +)
                          (knr-argdecl-intro . +)))
    (c-hanging-braces-alist . ((brace-list-open)
                                (substatement-open after)
                                (block-close . c-snug-do-while)))
    (c-block-comment-prefix . "* "))
;; This is a very crude hook that auto-selects the C style depending on
;; whether it finds a line starting with tab in the first 3000 characters
;; in the file
(defun c-select-style ()
    (if (re-search-forward "^\t" 3000 t)
        (c-set-style "python")
      (c-set-style "python-new"))))
(add-hook 'c-mode-hook 'c-select-style)
;; Django ;;
(add-to-list 'load-path "~/.emacs.d/el-get/django-mode/")
(require 'django-html-mode)
(require 'django-mode)
(yas/load-directory "~/.emacs.d/el-get/django-mode/snippets")
(add-to-list 'auto-mode-alist '("\\.djhtml$" . django-html-mode))
;; Document Engineering (AUCTeX + ConTeXt) ;;
(load "auctex.el" nil t t)
(load "preview-latex.el" nil t t)
(setq TeX-auto-save 1)
(setq TeX-parse-self 1)
(setq TeX-auto-untabify 1)
(setq TeX-display-help 1)
(setq TeX-save-query nil)
(setq TeX-clean-confirm nil)
(setq-default TeX-master nil)
(add-hook 'TeX-mode-hook (lambda () (TeX-fold-mode 1)))
(add-hook 'TeX-mode-hook (lambda () (TeX-source-specials-mode 1)))
(add-hook 'TeX-mode-hook (lambda () (TeX-toggle-debug-bad-boxes)))
(add-hook 'TeX-mode-hook (lambda () (TeX-toggle-debug-warnings)))
(add-hook 'TeX-mode-hook (lambda () (outline-minor-mode)))
(add-hook 'TeX-mode-hook (lambda () (abbrev-mode t)))
(add-hook 'TeX-mode-hook (lambda () (auto-fill-mode 1)))
(add-hook 'TeX-mode-hook 'LaTeX-math-mode)
(autoload 'etexshow "etexshow" "Browser for ConTeXt commands." t)
(setq etexshow-xml-files-alist
  `((,(concat emacs-root-dir "libs/etexshow/cont-en.xml") .
      ,(concat "/tmp/cont-en.cache"))))
(setq etexshow-comment-file
  (concat emacs-root-dir "libs/etexshow/cont-en-comments.xml"))
(setq TeX-PDF-mode 1)
(setq revert-without-query '(".+pdf$"))
(add-hook 'doc-view-mode-hook 'auto-revert-mode)
;; bbdb ;;
(setq bbdb-file "~/.emacs.d/.bbdb")
(require 'bbdb)
bbdb-offer-save 1                        ;; 1 means save-without-asking
bbdb-use-pop-up t                        ;; allow popups for addresses
bbdb-electric-p t                        ;; be disposable with SPC
bbdb-popup-target-lines 1                ;; very small
bbdb-dwim-net-address-allow-redundancy t  ;; always use full name
bbdb-quiet-about-name-mismatches 2        ;; show name-mismatches 2 secs
bbdb-always-add-address t                ;; add new addresses to existing...
                                          ;; ...contacts automatically
bbdb-canonicalize-redundant-nets-p t      ;; x@foo.bar.cx => x@bar.cx
bbdb-completion-type nil                  ;; complete on anything
bbdb-complete-name-allow-cycling t        ;; cycle through matches
                                          ;; this only works partially
bbdb-message-caching-enabled t            ;; be fast
bbdb-use-alternate-names t                ;; use AKA
bbdb-elided-display t                    ;; single-line addresses
;; auto-create addresses from mail
bbdb/mail-auto-create-p 'bbdb-ignore-some-messages-hook
bbdb-ignore-some-messages-alist          ;; don't ask about fake addresses
;; NOTE: there can be only one entry per header (such as To, From)
;; http://flex.ee.uec.ac.jp/texi/bbdb/bbdb_11.html
'(( "From" . "no.?reply\\|DAEMON\\|daemon\\|facebookmail\\|twitter")))
;; Jabber Mode ;;
(require 'jabber-autoloads)
(setq jabber-account-list '(
                            (:password . "PASSWORD")
    jabber-history-enabled t
    jabber-use-global-history nil
    jabber-backlog-number 40
    jabber-backlog-days 30
(add-hook 'jabber-chat-mode-hook 'goto-address)
(load "~/.emacs.d/plugins/autosmiley.el")
(require 'autosmiley)
(add-hook 'jabber-chat-mode-hook 'autosmiley-mode)
(defvar libnotify-program "/usr/bin/notify-send")
(defun notify-send (title message)
  (start-process "notify" " notify"
                libnotify-program "--expire-time=4000" title message))
(defun libnotify-jabber-notify (from buf text proposed-alert)
  "(jabber.el hook) Notify of new Jabber chat messages via libnotify"
  (when (or jabber-message-alert-same-buffer
                        (not (memq (selected-window) (get-buffer-window-list buf))))
    (if (jabber-muc-sender-p from)
        (notify-send (format "(PM) %s"
                            (jabber-jid-displayname (jabber-jid-user from)))
                    (format "%s: %s" (jabber-jid-resource from) text)))
    (notify-send (format "%s" (jabber-jid-displayname from))
(add-hook 'jabber-alert-message-hooks 'libnotify-jabber-notify)
(defun jabber-visit-history (jid)
  "Visit jabber history with JID in a new buffer.
Performs well only for small files. Expect to wait a few seconds
for large histories. Adapted from `jabber-chat-create-buffer'."
  (interactive (list (jabber-read-jid-completing "JID: ")))
  (let ((buffer (generate-new-buffer (format "*-jabber-history-%s-*"
                                            (jabber-jid-displayname jid)))))
    (switch-to-buffer buffer)
    (make-local-variable 'jabber-chat-ewoc)
    (setq jabber-chat-ewoc (ewoc-create #'jabber-chat-pp))
    (mapc 'jabber-chat-insert-backlog-entry
          (nreverse (jabber-history-query nil nil t t "."
                                          (jabber-history-filename jid))))
;; EMMS ;;
(require 'emms-setup)
;; ERC ;;
(require 'erc)
(require 'erc-extension)
(require 'erc-services)
(require 'erc-tex)
(require 'tls)
(require 'erc-nicklist)
(require 'erc-highlight-nicknames)
(add-to-list 'erc-modules 'highlight-nicknames)
(erc-services-mode 1)
(setq tls-program '("openssl s_client -connect %h:%p -no_ssl2 -ign_eof
                            -CAfile /home/USER/.ssl/USER.pem
                            -cert /home/USER/.ssl/USER.pem"
                    "gnutls-cli --priority secure256
                                --x509cafile /home/USER/.ssl/USER.pem
                                --x509certfile /home/USER/.ssl/USER.pem -p %p %h"
                    "gnutls-cli --priority secure256 -p %p %h"))
(autoload 'erc-nick-notify-mode "erc-nick-notify" "Minor mode that calls `erc-nick-notify-cmd' when his nick gets mentioned in an erc channel" t)
(eval-after-load 'erc '(erc-nick-notify-mode t))
(defun irc-erc ()
  "Fire up IRC."
  (erc-tls :server "chat.freenode.net" :port 7000 :nick "USER" :full-name "FULL NAME" :password "PASSWORD"))
(setq erc-autojoin-channels-alist '(("freenode.net" "#frogandowl" "#funtoo" "#funtoo-quebec" "#syntazia" "#context" "#nginx" "#emacs" "#openvswitch")))
(setq erc-log-channels-directory "~/.erc/logs/")
(setq erc-log-insert-log-on-open nil)
(setq erc-save-buffer-on-part nil
      erc-save-buffer-queries-on-quit nil
      erc-log-write-after-send t
      erc-log-write-after-insert t)
(require 'smiley)
    (add-to-list 'smiley-regexp-alist '("\\(:-?]\\)\\W" 1 "forced"))
    (add-to-list 'smiley-regexp-alist '("\\s-\\(:-?/\\)\\W" 1 "wry"))
    (add-to-list 'smiley-regexp-alist '("\\(:-?(\\)\\W" 1 "sad"))
    (add-to-list 'smiley-regexp-alist '("\\((-?:\\)\\W" 1 "reverse-smile"))
    (add-to-list 'smiley-regexp-alist '("\\(:-?D\\)\\W" 1 "grin"))
    (add-to-list 'smiley-regexp-alist '("\\(:-?P\\)\\W" 1 "poke"))
;; (setq smiley-cached-regexp-alist nil)
;; (smiley-update-cache)
;; Wanderlust ;;
(autoload 'wl "wl" "Wanderlust" t)
;; mailcrypt ;;
(require 'mailcrypt)
(add-hook 'wl-summary-mode-hook 'mc-install-read-mode)
(add-hook 'wl-mail-setup-hook 'mc-install-write-mode)
(defun mc-wl-verify-signature ()
(defun mc-wl-decrypt-message ()
    (let ((inhibit-read-only t))
(eval-after-load "mailcrypt"
  '(setq mc-modes-alist
          ((wl-draft-mode (encrypt . mc-encrypt-message)
                          (sign . mc-sign-message))
            (wl-summary-mode (decrypt . mc-wl-decrypt-message)
                            (verify . mc-wl-verify-signature))))
;; notify function ;;
(defun djcb-popup (title msg &optional icon sound)
  "Show a popup if we're on X, or echo it otherwise; TITLE is the title of the message, MSG is the context. Optionally, you can provide an ICON and a sound to be played"
  (when sound (shell-command
              (concat "mplayer2 -really-quiet " sound " 2> /dev/null")))
  (if (eq window-system 'x)
      (shell-command (concat "notify-send "
                            (if icon (concat "-i " icon) "")
                            " '" title "' '" msg "'"))
    ;; text only version
    (message (concat title ": " msg))))
;; the appointment notification facility
appt-message-warning-time 15 ;; warn 15 min in advance
appt-display-mode-line t    ;; show in the modeline
appt-display-format 'window) ;; usr our func
(appt-activate t)            ;; active appt (appointment notification)
;; update appt each time agenda opened
(add-hook 'org-finalize-agenda-hook 'org-agenda-to-appt)
;; our little facade-function for djcb-popup
(defun djcb-appt-display (min-to-app new-time msg)
  (djcb-popup (format "Appointment in %s minute(s)" min-to-app) msg
(setq appt-disp-window-function (function djcb-appt-display))
;; Custom Variable sets ;;
  ;; custom-set-variables was added by Custom.
  ;; If you edit it by hand, you could mess it up, so be careful.
  ;; Your init file should contain only one such instance.
  ;; If there is more than one, they won't work right.
'(TeX-command-list (quote (("TeX" "%(PDF)%(tex) %`%S%(PDFout)%(mode)%' %t" TeX-run-TeX nil (plain-tex-mode texinfo-mode ams-tex-mode) :help "Run plain TeX") ("LaTeX" "%`%l%(mode)%' %t" TeX-run-TeX nil (latex-mode doctex-mode) :help "Run LaTeX") ("Makeinfo" "makeinfo %t" TeX-run-compile nil (texinfo-mode) :help "Run Makeinfo with Info output") ("Makeinfo HTML" "makeinfo --html %t" TeX-run-compile nil (texinfo-mode) :help "Run Makeinfo with HTML output") ("AmSTeX" "%(PDF)amstex %`%S%(PDFout)%(mode)%' %t" TeX-run-TeX nil (ams-tex-mode) :help "Run AMSTeX") ("ConTeXt MKIV" "context %t" TeX-run-TeX nil (context-mode) :help "Run ConTeXt MKIV") ("ConTeXt" "texexec --once --texutil %(execopts)%t" TeX-run-TeX nil (context-mode) :help "Run ConTeXt once") ("ConTeXt Full" "texexec %(execopts)%t" TeX-run-TeX nil (context-mode) :help "Run ConTeXt until completion") ("BibTeX" "bibtex %s" TeX-run-BibTeX nil t :help "Run BibTeX") ("View" "%V" TeX-run-discard-or-function t t :help "Run Viewer") ("Print" "%p" TeX-run-command t t :help "Print the file") ("Queue" "%q" TeX-run-background nil t :help "View the printer queue" :visible TeX-queue-command) ("File" "%(o?)dvips %d -o %f " TeX-run-command t t :help "Generate PostScript file") ("Index" "makeindex %s" TeX-run-command nil t :help "Create index file") ("Check" "lacheck %s" TeX-run-compile nil (latex-mode) :help "Check LaTeX file for correctness") ("Spell" "(TeX-ispell-document \"\")" TeX-run-function nil t :help "Spell-check the document") ("Clean" "TeX-clean" TeX-run-function nil t :help "Delete generated intermediate files") ("Clean All" "(TeX-clean t)" TeX-run-function nil t :help "Delete generated intermediate and output files") ("Other" "" TeX-run-command t t :help "Run an arbitrary command"))))
'(column-number-mode t)
'(erc-modules (quote (autojoin bbdb button completion fill irccontrols list log match menu move-to-prompt netsplit networks noncommands readonly ring services smiley stamp spelling track)))
'(mediawiki-site-alist (quote (("Funtoo" "http://www.funtoo.org/" "USER" "PASSWORD" "")))))
  ;; custom-set-faces was added by Custom.
  ;; If you edit it by hand, you could mess it up, so be careful.
  ;; Your init file should contain only one such instance.
  ;; If there is more than one, they won't work right.
;; Color-Themes ;;
;;(add-to-list 'load-path "/usr/share/emacs/site-lisp/color-theme/color-theme.el")
;;(add-to-list 'load-path "~/.emacs.d/themes/")
(require 'color-theme)
;;(eval-after-load "color-theme"
;;  '(progn
;;    (color-theme-initialize)
;;    (require 'color-theme-citrus)
;;    (require 'color-theme-candy)
;;    (require 'color-theme-autumn-leaves)
;;    (require 'color-theme-inthedark)
;;    (require 'color-theme-marine)
;;    (require 'color-theme-october)
;;    (require 'color-theme-eatyourgreens)
;;    (require 'color-theme-august)
;;    (require 'color-theme-saddle-2)
;;    (color-theme-saddle-2)))
;;    (color-theme-subtle-hacker)))
(setq css-indent-offset 2)
==== .wl ====
;; load bbdb support
(require 'bbdb-wl)
;; setup from where to get addresses
(setq bbdb-wl-folder-regexp "^\.INBOX|^\.inbox|^\.Sent|^\.sent|^\.\[IMAPS\]\\Sent")
;; define keybinding
(define-key wl-draft-mode-map (kbd "<C-tab>") 'bbdb-complete-name)
;; set multiple e-mail addresses
(setq wl-user-mail-address-list (quote ("User@googlemail.com" "USER@own-server.tld")))
;; handle ("d") mark
;; remove = instant removal (same as "D"), thrash = move to wl-trash-folder
;; string = move to string
(setq wl-dispose-folder-alist
        ("\.\*googlemail\\.com" "%[Imap]/Trash:"User@googlemail.com"/clear@imap.gmail.com:993!")
        ("\.\*@own\-\server\\.tld" "%INBOX.Trash:"USER"/clear@imap.own-server.tld")
;; notify hook
(add-hook 'wl-biff-notify-hook
            (djcb-popup "Wanderlust" "You have new mail!"
;; timer settings
wl-biff-check-interval 30 ;; check every 30 seconds
wl-biff-use-idle-timer t) ;; in the background
;; Name of top-folder, default "Desktop"
(setq wl-folder-desktop-name "e-Mail")
;; select correct email address when we _start_ writing a draft.
(add-hook 'wl-mail-setup-hook 'wl-draft-config-exec)
(setq wl-draft-config-alist
        ((string-match "googlemail.com" wl-draft-parent-folder)
        (template . "User"))
        ((string-match "own-server.tld" wl-draft-parent-folder)
        (template . "USER"))
;; choose template with C-c C-j
(setq wl-template-alist
        (wl-from . "Full Name <User@googlemail.com>")
        ("From" . wl-from)
        (wl-smtp-posting-user . "User")
        (wl-smtp-posting-server . "smtp.gmail.com")
        (wl-smtp-authenticate-type . "plain")
        (wl-smtp-connection-type . 'starttls)
        (wl-smtp-posting-port . 587)
        (wl-local-domain . "googlemail.com")
        (wl-message-id-domain . "smtp.gmail.com")
        (wl-fcc .  "%[IMAPS]/Sent:\"User@googlemail.com\"/clear@imap.gmail.com:993!")
        (wl-draft-folder .  "%[IMAPS]/Draft:\"User@googlemail.com\"/clear@imap.gmail.com:993!")
        (wl-from  . "Full Name <USER@own-server.tld>")
        ("From"  . wl-from)
        (wl-smtp-posting-user  . "USER")
        (wl-smtp-posting-server  . "smtp.own-server.tld")
        (wl-local-domain . "own-server.tld")
        (wl-fcc  "%INBOX.Sent:USER/digest-md5@imap.own-server.tld:143")
        (wl-draft-folder  "%INBOX.Drafts:USER/digest-md5@imap.own-server.tld:143")
(define-key wl-template-mode-map (kbd "<right>") 'wl-template-next)
(define-key wl-template-mode-map (kbd "<left>") 'wl-template-prev)
(setq wl-default-spec "%")
(setq wl-fcc-force-as-read t)
(setq wl-auto-save-drafts-interval nil)
==== .folders ====
        %INBOX:"User@googlemail.com"/clear@imap.gmail.com:993!    "Inbox"
                %[IMAPS]/Sent:"User@googlemail.com"/clear@imap.gmail.com:993!      "Sent"
                %[IMAPS]/Draft:"User@googlemail.com"/clear@imap.gmail.com:993!      "Draft"
                %[IMAPS]/Spam:"User@googlemail.com"/clear@imap.gmail.com:993!      "Spam"
                %[IMAPS]/Trash:"User@googlemail.com"/clear@imap.gmail.com:993!      "Trash"
        %INBOX:USER/digest-md5@imap.own-server.tld  "Inbox"
        %INBOX.Sent:USER/digest-md5@imap.own-server.tld "Sent"
        %INBOX.Drafts:USER/digest-md5@imap.own-server.tld "Drafts"

Revision as of 04:08, August 28, 2012