User:Timothee Flutre/Notebook/Postdoc/2012/07/25

About Emacs

• Motivation: when analyzing data for any research project, it's essential to know well a good text editor. Indeed, it's very efficient to be able to program in several languages (eg. Python, C/C++, R), interact with the shell like in a terminal, manipulate data and plot exploratory analyzes in R, all this within the same editor! One such editor is Emacs, and is available on Linux, Mac OS and Windows.

• Configuration: my own file .emacs

;; .emacs

(custom-set-variables
  ;; 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.
 '(column-number-mode t) ;; in the mode line
 '(size-indication-mode t) ;; in the mode line
 '(display-time-mode 1) ;; in the mode line
 '(display-time-day-and-date t) ;; in the mode line
 '(display-time-24hr-format t) ;; in the mode line
 '(case-fold-search t)
 '(current-language-environment "UTF-8")
 '(default-input-method "rfc1345")
 '(global-font-lock-mode t nil (font-lock))
 '(show-paren-mode t))
(custom-set-faces
  ;; 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.
 )

(setq inhibit-startup-message t)

(add-to-list 'load-path "~/.emacs.d/")

(setq latex-run-command "pdflatex")

;; config for C/C++ code
(setq c-default-style "bsd"
          c-basic-offset 2
          tab-width 2
          indent-tabs-mode t)

;;--------------------------------------------------------------------

;; START config Auto-Complete
(require 'auto-complete-config)
(add-to-list 'ac-dictionary-directories "~/.emacs.d//ac-dict")
(ac-config-default)
;; END config Auto-Complete

;;--------------------------------------------------------------------

;; START config ESS
(require 'ess-site)
;;(load "~/src_ext_nb/ESS/ess-12.04-4/lisp/ess-site")

;; tips from http://emacswiki.org/emacs/EmacsSpeaksStatistics
(setq ess-eval-visibly-p nil) ;otherwise C-c C-r (eval region) takes forever
(setq ess-ask-for-ess-directory nil) ;otherwise you are prompted each time you start an interactive R session
;; END config ESS

;;--------------------------------------------------------------------

;; START config AUCTeX
;;(load "/home/tflutre/src/LATEX_PKGS/AUCTEX/auctex.el" nil t t)
;;(load "/home/tflutre/src/LATEX_PKGS/AUCTEX/preview-latex.el" nil t t)
;;(add-to-list 'load-path "/home/tflutre/src/LATEX_PKGS/AUCTEX")
(setq TeX-auto-save t)
(setq TeX-parse-self t)
(setq-default TeX-master nil)
(setq TeX-save-query nil)
(setq TeX-PDF-mode t) ;; to have a pdf output for all LaTeX documents
;; END config AUCTeX

;;--------------------------------------------------------------------

;; START config org-mode
(setq load-path (cons "/home/tflutre/src/ORG-MODE/org-7.8.03/lisp" load-path))
(setq load-path (cons "/home/tflutre/src/ORG-MODE/org-7.8.03/contrib/lisp" load-path))
(require 'org-install)
(add-to-list 'auto-mode-alist '("\\.org\\'" . org-mode))
(global-set-key "\C-cl" 'org-store-link)
(global-set-key "\C-cc" 'org-capture)
(global-set-key "\C-ca" 'org-agenda)
(global-set-key "\C-cb" 'org-iswitchb)
(org-babel-do-load-languages
 'org-babel-load-languages
 '((R . t)
   (sh . t)
   (python . t)
   ))
(setq org-confirm-babel-evaluate nil)
(require 'org-latex)
(add-to-list 'org-export-latex-packages-alist '("" "listings"))
(setq org-export-latex-listings t)
(setq org-export-latex-listings-options
      '(("breaklines")))
(setq org-log-done 'time)
;; END config org-mode

• Important packages:
  • ESS
  • Auto-Complete
  • org-mode
  • AUCTeX

• Tips:
  • from the office computer, log interactively to a cluster node, launch emacs --daemon and keep the terminal open indefinitely; then access this session from any computer, e.g. a laptop, with emacsclient -t
  • especially useful with PuTTY on Windows, launch emacs so that its window is the terminal itself, via emacs -nw