#+AUTHOR: Peng Li
#+EMAIL: seudut@gmail.com
-#+STARTUP: indent
+* Introduction
+
+Most config are just copied from [[https://github.com/howardabrams/dot-files][howardabrams]]'s and [[https://github.com/abo-abo/oremacs][abo-abo's]] dotfiles
* Basic Settings
-** Setting Path
+** Setting loading Path
-Set the system PATH environment
+Set the emacs load path
#+BEGIN_SRC emacs-lisp :tangle yes :results silent
- (setenv "PATH" (concat (getenv "PATH") ":/usr/local/bin"))
+ (add-to-list 'load-path "~/.emacs.d/elisp")
#+END_SRC
-Set the emacs load path
+** Package Initialization
-#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+#+BEGIN_SRC emacs-lisp :tangle yes
- (add-to-list 'load-path "~/.emacs.d/elisp")
+ (require 'package)
+
+ (setq package-archives '(("mepla" . "http://melpa.milkbox.net/packages/")
+ ("org" . "http://orgmode.org/elpa/")))
+
+ (package-initialize)
#+END_SRC
-** Windows Setting
+** General Setting
Disable scroll bar, tool-bar and menu-bar
#+BEGIN_SRC emacs-lisp :tangle yes :results silent
- (scroll-bar-mode -1)
- (tool-bar-mode -1)
- (menu-bar-mode -1)
+ (scroll-bar-mode 0)
+ (tool-bar-mode 0)
+ (menu-bar-mode 1)
-#+END_SRC
+ (setq debug-on-error t)
+ (setq inhibit-startup-message t)
-** Package Initialization
+ (defalias 'yes-or-no-p 'y-or-n-p)
+ (show-paren-mode 1)
-#+BEGIN_SRC emacs-lisp :tangle yes
+ (global-set-key (kbd "<s-return>") 'toggle-frame-fullscreen)
- (require 'package)
+#+END_SRC
- (setq package-archives '(("mepla" . "http://melpa.milkbox.net/packages/")
- ("org" . "http://orgmode.org/elpa/")))
+Switch the focus to help window when it appears
- (package-initialize)
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (setq help-window-select t)
#+END_SRC
-* Use-package
+* Package Management Tools
+
+** Use-package
Using [[https://github.com/jwiegley/use-package][use-package]] to manage emacs packages
(require 'use-package)
+#+END_SRC
+
+** El-get
+
+[[https://github.com/dimitri/el-get][El-get]] is package management tool, whicl allows to install external elisp package from any git repository not in mepla.
+Check out [[http://tapoueh.org/emacs/el-get.html][el-get]].
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package el-get
+ :ensure t
+ :init
+ (add-to-list 'load-path "~/.emacs.d/el-get"))
+
+#+END_SRC
+
+* Color and Fonts Settings
+
+** highlight current line
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (global-hl-line-mode)
+
+#+END_SRC
+
+** Smart Comments
+
+[[https://github.com/paldepind/smart-comment][smart-comments]]
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package smart-comment
+ :ensure t
+ :bind ("M-;" . smart-conmment))
+
+#+END_SRC
+
+** Font Setting
+
+syntax highlighting
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (global-font-lock-mode 1)
+
+#+END_SRC
+
+[[https://github.com/i-tu/Hasklig][Hasklig]] and Source Code Pro, defined fonts family
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (if window-system
+ (defvar sd/fixed-font-family
+ (cond ((x-list-fonts "Hasklig") "Hasklig")
+ ((x-list-fonts "Source Code Pro") "Source Code Pro")
+ ((x-list-fonts "Anonymous Pro") "Anonymous Pro")
+ ((x-list-fonts "M+ 1mn") "M+ 1mn"))
+ "The fixed width font based on what is installed, `nil' if not defined."))
+
+#+END_SRC
+
+Setting the fonts
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (if window-system
+ (when sd/fixed-font-family
+ (set-frame-font sd/fixed-font-family)
+ (set-face-attribute 'default nil :font sd/fixed-font-family :height 120)
+ (set-face-font 'default sd/fixed-font-family)))
+
+#+END_SRC
+
+** Color Theme
+
+Loading theme should be after all required loaded, refere [[https://github.com/jwiegley/use-package][:defer]] in =use-package=
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (setq vc-follow-symlinks t)
+
+ (use-package color-theme
+ :ensure t
+ :init (require 'color-theme)
+ :config (use-package color-theme-sanityinc-tomorrow
+ :ensure t
+ :no-require t
+ :config
+ (load-theme 'sanityinc-tomorrow-bright t)))
+
+ ;(eval-after-load 'color-theme
+ ; (load-theme 'sanityinc-tomorrow-bright t))
+
+#+END_SRC
+
+Change the Org-mode colors
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (defun org-src-color-blocks-light ()
+ "Colors the block headers and footers to make them stand out more for lighter themes"
+ (interactive)
+ (custom-set-faces
+ '(org-block-begin-line
+ ((t (:underline "#A7A6AA" :foreground "#008ED1" :background "#EAEAFF"))))
+ '(org-block-background
+ ((t (:background "#FFFFEA"))))
+ '(org-block
+ ((t (:background "#FFFFEA"))))
+ '(org-block-end-line
+ ((t (:overline "#A7A6AA" :foreground "#008ED1" :background "#EAEAFF"))))
+
+ '(mode-line-buffer-id ((t (:foreground "#005000" :bold t))))
+ '(which-func ((t (:foreground "#008000"))))))
+
+ (defun org-src-color-blocks-dark ()
+ "Colors the block headers and footers to make them stand out more for dark themes"
+ (interactive)
+ (custom-set-faces
+ '(org-block-begin-line
+ ((t (:foreground "#008ED1" :background "#002E41"))))
+ '(org-block-background
+ ((t (:background "#000000"))))
+ '(org-block
+ ((t (:background "#000000"))))
+ '(org-block-end-line
+ ((t (:foreground "#008ED1" :background "#002E41"))))
+
+ '(mode-line-buffer-id ((t (:foreground "black" :bold t))))
+ '(which-func ((t (:foreground "green"))))))
+
+ (org-src-color-blocks-dark)
+
+#+END_SRC
+
+improve color for org-mode
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (deftheme ha/org-theme "Sub-theme to beautify org mode")
+
+ (if window-system
+ (defvar sd/variable-font-tuple
+ (cond ((x-list-fonts "Source Sans Pro") '(:font "Source Sans Pro"))
+ ((x-list-fonts "Lucida Grande") '(:font "Lucida Grande"))
+ ((x-list-fonts "Verdana") '(:font "Verdana"))
+ ((x-family-fonts "Sans Serif") '(:family "Sans Serif"))
+ (nil (warn "Cannot find a Sans Serif Font. Install Source Sans Pro.")))
+ "My variable width font available to org-mode files and whatnot."))
+
+ (defun sd/org-color ()
+ (let* ((sd/fixed-font-tuple (list :font sd/fixed-font-family))
+ (base-font-color (face-foreground 'default nil 'default))
+ (background-color (face-background 'default nil 'default))
+ (primary-color (face-foreground 'mode-line nil))
+ (secondary-color (face-background 'secondary-selection nil 'region))
+ (base-height (face-attribute 'default :height))
+ (headline `(:inherit default :weight bold :foreground ,base-font-color)))
+ (custom-theme-set-faces 'ha/org-theme
+ `(org-agenda-structure ((t (:inherit default :height 2.0 :underline nil))))
+ `(org-verbatim ((t (:inherit 'fixed-pitched :foreground "#aef"))))
+ `(org-table ((t (:inherit 'fixed-pitched))))
+ `(org-block ((t (:inherit 'fixed-pitched))))
+ `(org-block-background ((t (:inherit 'fixed-pitched))))
+ `(org-block-begin-line ((t (:inherit 'fixed-pitched))))
+ `(org-block-end-line ((t (:inherit 'fixed-pitched))))
+ `(org-level-8 ((t (,@headline ,@sd/variable-font-tuple))))
+ `(org-level-7 ((t (,@headline ,@sd/variable-font-tuple))))
+ `(org-level-6 ((t (,@headline ,@sd/variable-font-tuple))))
+ `(org-level-5 ((t (,@headline ,@sd/variable-font-tuple))))
+ `(org-level-4 ((t (,@headline ,@sd/variable-font-tuple
+ :height ,(round (* 1.1 base-height))))))
+ `(org-level-3 ((t (,@headline ,@sd/variable-font-tuple
+ :height ,(round (* 1.25 base-height))))))
+ `(org-level-2 ((t (,@headline ,@sd/variable-font-tuple
+ :height ,(round (* 1.5 base-height))))))
+ `(org-level-1 ((t (,@headline ,@sd/variable-font-tuple
+ :height ,(round (* 1.75 base-height))))))
+ `(org-document-title ((t (,@headline ,@sd/variable-font-tuple :height 1.5 :underline nil)))))))
+
#+END_SRC
* Org-mode Settings
+** Org-mode Basic setting
+
+Always indents header, and hide header leading starts so that no need type =#+STATUP: indent=
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package org
+ :ensure t
+ :init
+ (setq org-startup-indented t)
+ (setq org-hide-leading-starts t)
+ (setq org-src-fontify-natively t)
+ (setq org-src-tab-acts-natively t)
+ (setq org-confirm-babel-evaluate nil)
+ (setq org-use-speed-commands t)
+ (setq org-completion-use-ido t))
+
+ (org-babel-do-load-languages
+ 'org-babel-load-languages
+ '((python . t)
+ (C . t)
+ (perl . t)
+ (calc . t)
+ (latex . t)
+ (java . t)
+ (ruby . t)
+ (lisp . t)
+ (scheme . t)
+ (sh . t)
+ (sqlite . t)
+ (js . t)))
+
+#+END_SRC
+
+** Org-bullets
+
+use [[https://github.com/sabof/org-bullets][org-bullets]] package to show utf-8 charactes
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package org-bullets
+ :ensure t
+ :init
+ (add-hook 'org-mode-hook
+ (lambda ()
+ (org-bullets-mode t))))
+
+#+END_SRC
+
+** Worf Mode
+
+[[https://github.com/abo-abo/worf][worf]] mode is an extension of vi-like binding for org-mode.
+In =worf-mode=, it is mapping =[=, =]= as =worf-backward= and =worf-forward= in global, wich
+cause we cannot input =[= and =]=, so here I unset this mappings. And redifined this two to
+=M-[= and =M-]=. see this [[https://github.com/abo-abo/worf/issues/19#issuecomment-223756599][issue]]
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package worf
+ :ensure t
+ :commands worf-mode
+ :init (add-hook 'org-mode-hook 'worf-mode)
+ ;; :config
+ ;; (define-key worf-mode-map "[" nil)
+ ;; (define-key worf-mode-map "]" nil)
+ ;; (define-key worf-mode-map (kbd "M-[") 'worf-backward)
+ ;; (define-key worf-mode-map (kbd "M-]") 'worf-forward)
+ )
+
+#+END_SRC
+
+** Task Management
+
+** Capture
+
+* Magit
+
+[[https://github.com/magit/magit][Magit]] is a very cool git interface on Emacs.
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package magit
+ :ensure t
+ :commands magit-status magit-blame)
+
+
+#+END_SRC
+
+* IDO & SMEX
+
+** IDO
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package ido
+ :ensure t
+ :init (setq ido-enable-flex-matching t
+ ido-ignore-extensions t
+ ido-use-virtual-buffers t
+ ido-everywhere t)
+ :config
+ (ido-mode 1)
+ (ido-everywhere 1)
+ (add-to-list 'completion-ignored-extensions ".pyc"))
+
+#+END_SRC
+
+** FLX
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package flx-ido
+ :ensure t
+ :init (setq ido-enable-flex-matching t
+ ido-use-faces nil)
+ :config (flx-ido-mode 1))
+
+#+END_SRC
+
+** IDO-vertically
+
+#+BEGIN_SRC emacs-lisp :tangle yes :result silent
+
+ (use-package ido-vertical-mode
+ :ensure t
+ :init
+ (setq ido-vertical-define-keys 'C-n-C-p-up-and-down)
+ :config
+ (ido-vertical-mode 1))
+
+#+END_SRC
+
+** SMEX
+
+#+BEGIN_SRC emacs-lisp :tangle yes :result silent
+
+ (use-package smex
+ :ensure t
+ :init (smex-initialize)
+ :bind
+ ("M-x" . smex)
+ ("M-X" . smex-major-mode-commands))
+
+#+END_SRC
+
+** Ido-ubiquitous
+
+Use [[https://github.com/DarwinAwardWinner/ido-ubiquitous][ido-ubiquitous]] for ido everywhere. It makes =describe-function= can also use ido
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package ido-ubiquitous
+ :ensure t
+ :init
+ (setq magit-completing-read-function 'magit-ido-completing-read)
+ (setq gnus-completing-read-function 'gnus-ido-completing-read)
+ :config
+ (ido-ubiquitous-mode 1))
+
+#+END_SRC
+
+* Misc Settings
+
+
+** [[https://github.com/abo-abo/hydra][Hydra]]
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package hydra
+ :ensure t)
+
+#+END_SRC
+
+*** Font Zoom
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (defhydra sd/font-zoom (global-map "<f2>")
+ "zoom"
+ ("g" text-scale-increase "in")
+ ("l" text-scale-decrease "out"))
+
+#+END_SRC
+
+*** Windmove Splitter
+
+Refer [[https://github.com/abo-abo/hydra/blob/master/hydra-examples.el][hydra-example]], to enlarge or shrink the windows splitter
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (defun hydra-move-splitter-left (arg)
+ "Move window splitter left."
+ (interactive "p")
+ (if (let ((windmove-wrap-around))
+ (windmove-find-other-window 'right))
+ (shrink-window-horizontally arg)
+ (enlarge-window-horizontally arg)))
+
+ (defun hydra-move-splitter-right (arg)
+ "Move window splitter right."
+ (interactive "p")
+ (if (let ((windmove-wrap-around))
+ (windmove-find-other-window 'right))
+ (enlarge-window-horizontally arg)
+ (shrink-window-horizontally arg)))
+
+ (defun hydra-move-splitter-up (arg)
+ "Move window splitter up."
+ (interactive "p")
+ (if (let ((windmove-wrap-around))
+ (windmove-find-other-window 'up))
+ (enlarge-window arg)
+ (shrink-window arg)))
+
+ (defun hydra-move-splitter-down (arg)
+ "Move window splitter down."
+ (interactive "p")
+ (if (let ((windmove-wrap-around))
+ (windmove-find-other-window 'up))
+ (shrink-window arg)
+ (enlarge-window arg)))
+
+#+END_SRC
+
+*** hydra-window
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (winner-mode 1)
+
+ (defhydra sd/hydra-window (:color red :columns nil)
+ "window"
+ ("h" windmove-left nil)
+ ("j" windmove-down nil)
+ ("k" windmove-up nil)
+ ("l" windmove-right nil)
+ ("H" hydra-move-splitter-left nil)
+ ("J" hydra-move-splitter-down nil)
+ ("K" hydra-move-splitter-up nil)
+ ("L" hydra-move-splitter-right nil)
+ ("v" (lambda ()
+ (interactive)
+ (split-window-right)
+ (windmove-right))
+ "vert")
+ ("x" (lambda ()
+ (interactive)
+ (split-window-below)
+ (windmove-down))
+ "horz")
+ ("o" delete-other-windows "one" :exit t)
+ ("a" ace-window "ace")
+ ("s" ace-swap-window "swap")
+ ("d" ace-delete-window "ace-one" :exit t)
+ ("i" ace-maximize-window "ace-one" :exit t)
+ ("b" ido-switch-buffer "buf")
+ ("m" headlong-bookmark-jump "bmk")
+ ("q" nil "cancel")
+ ("u" (progn (winner-undo) (setq this-command 'winner-undo)) "undo")
+ ("r" (progn (winner-redo) (setq this-command 'winner-redo)) "redo")
+ ("f" nil))
+
+ (global-unset-key (kbd "M-o"))
+ (global-set-key (kbd "M-o") 'sd/hydra-window/body)
+
+#+END_SRC
+
+** Line Number
+
+Enable linum mode on programming modes
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (add-hook 'prog-mode-hook 'linum-mode)
+
+#+END_SRC
+
+Fix the font size of line number
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (defun fix-linum-size ()
+ (interactive)
+ (set-face-attribute 'linum nil :height 110))
+
+ (add-hook 'linum-mode-hook 'fix-linum-size)
+
+#+END_SRC
+
+I like [[https://github.com/coldnew/linum-relative][linum-relative]], just like the =set relativenumber= on =vim=
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package linum-relative
+ :ensure t
+ :config
+ (defun linum-new-mode ()
+ "If line numbers aren't displayed, then display them.
+ Otherwise, toggle between absolute and relative numbers."
+ (interactive)
+ (if linum-mode
+ (linum-relative-toggle)
+ (linum-mode 1)))
+
+ :bind
+ ("A-k" . linum-new-mode))
+
+ ;; auto enable linum-new-mode in programming modes
+ (add-hook 'prog-mode-hook 'linum-relative-mode)
+
+#+END_SRC
+
+** Save File Position
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (require 'saveplace)
+ (setq-default save-place t)
+ (setq save-place-forget-unreadable-files t)
+ (setq save-place-skip-check-regexp "\\`/\\(?:cdrom\\|floppy\\|mnt\\|/[0-9]\\|\\(?:[^@/:]*@\\)?[^@/:]*[^@/:.]:\\)")
+
+#+END_SRC
+
+** Multi-term
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package multi-term
+ :ensure t)
+
+#+END_SRC
+
+** ace-link
+
+[[https://github.com/abo-abo/ace-link][ace-link]] is a package written by [[https://github.com/abo-abo][Oleh Krehel]]. It is convenient to jump to link in help mode, info-mode, etc
+Type =o= to go to the link
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package ace-link
+ :ensure t
+ :init
+ (ace-link-setup-default))
+
+#+END_SRC
+
+** Emux
+
+[[https://github.com/re5et/emux][emux]] is
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (el-get-bundle re5et/emux)
+
+#+END_SRC
+
+** Smart Parens
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package smartparens
+ :ensure t
+ :config
+ (progn
+ (require 'smartparens-config)
+ (add-hook 'prog-mode-hook 'smartparens-mode)))
+
+#+END_SRC
+
+** Ace-Windows
+
+[[https://github.com/abo-abo/ace-window][ace-window]]
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package ace-window
+ :ensure t
+ :defer t
+ ; :init
+ ; (global-set-key (kbd "M-o") 'ace-window)
+ :config
+ (setq aw-keys '(?a ?s ?d ?f ?j ?k ?l)))
+
+#+END_SRC
+
+** Projectile
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package projectile
+ :ensure t
+ :init
+ (setq projectile-enable-caching t)
+ :config
+ (projectile-global-mode t))
+
+ (use-package persp-projectile
+ :ensure t
+ :config
+ (persp-mode)
+ :bind
+ (:map projectile-mode-map
+ ("s-p" . projectile-persp-switch-project)))
+
+#+END_SRC
+* Programming
+
+** Languages
+
+*** Emacs Lisp
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package color-identifiers-mode
+ :ensure t
+ :init
+ (add-hook 'emacs-lisp-mode-hook 'color-identifiers-mode)
+
+ :diminish color-identifiers-mode)
+
+#+END_SRC
+
+**** Lispy Mode
+
+In Lisp Mode, =M-o= is defined, but I use this for global hydra window. So here disable this key
+bindings in =lispy-mode-map= after loaded. see [[http://stackoverflow.com/questions/298048/how-to-handle-conflicting-keybindings][here]]
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package lispy
+ :ensure t
+ :init
+ (eval-after-load 'lispy
+ '(progn
+ (define-key lispy-mode-map (kbd "M-o") nil)))
+ :config
+ (add-hook 'emacs-lisp-mode-hook (lambda () (lispy-mode 1))))
+
+#+END_SRC
+
+*** Perl
+
+[[https://www.emacswiki.org/emacs/CPerlMode][CPerl mode]] has more features than =PerlMode= for perl programming. Alias this to =CPerlMode=
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (defalias 'perl-mode 'cperl-mode)
+
+ ;(setq cperl-hairy t) ;; Turns on most of the CPerlMode options
+ (setq cperl-auto-newline t)
+ (setq cperl-highlight-variables-indiscriminately t)
+ ;(setq cperl-indent-level 4)
+ ;(setq cperl-continued-statement-offset 4)
+ (setq cperl-close-paren-offset -4)
+ (setq cperl-indent-parents-as-block t)
+ (setq cperl-tab-always-indent t)
+ ;(setq cperl-brace-offset 0)
+
+ (add-hook 'cperl-mode-hook
+ '(lambda ()
+ (cperl-set-style "C++")))
+
+ ;(require 'template)
+ ;(template-initialize)
+ ;(require 'perlnow)
+
+#+END_SRC
+
+- auto insert
+- run script
+
+Change the compile-command to set the default command run when call =compile=
+Mapping =s-r= (on Mac, it's =Command + R= to run the script. Here =current-prefix-arg= is set
+to call =compilation= interactively.
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (defun my-perl-hook ()
+ (progn
+ (setq-local compilation-read-command nil)
+ (set (make-local-variable 'compile-command)
+ (concat "/usr/bin/perl "
+ (if buffer-file-name
+ (shell-quote-argument buffer-file-name))))
+ (local-set-key (kbd "s-r")
+ (lambda ()
+ (interactive)
+ ; (setq current-prefix-arg '(4)) ; C-u
+ (call-interactively 'compile)))))
+
+ (add-hook 'cperl-mode-hook 'my-perl-hook)
+
+
+#+END_SRC
+
+*** C & C++
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (setq c-default-style "stroustrup"
+ c-basic-offset 4)
+
+#+END_SRC
+
+** Compile
+
+Set the environments vairables in compilation mode
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package compile
+ :commands compile
+ :config
+ (setq compilation-environment (cons "LC_ALL=C" compilation-environment)))
+
+#+END_SRC
+
+** Auto-Insert
+
+Enable auto-insert mode
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silenc
+
+ (auto-insert-mode t)
+ (setq auto-insert-query nil)
+
+#+END_SRC
+
+*** C++ Auto Insert
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (eval-after-load 'autoinsert
+ '(define-auto-insert '("\\.cpp\\'" . "C++ skeleton")
+ '(
+ "Short description:"
+ "/*"
+ "\n * " (file-name-nondirectory (buffer-file-name))
+ "\n */" > \n \n
+ "#include <iostream>" \n
+ "#include \""
+ (file-name-sans-extension
+ (file-name-nondirectory (buffer-file-name)))
+ ".hpp\"" \n \n
+ "using namespace std;" \n \n
+ "int main ()"
+ "\n{" \n
+ > _ \n
+ "return 1;"
+ "\n}" > \n
+ )))
+
+ (eval-after-load 'autoinsert
+ '(define-auto-insert '("\\.c\\'" . "C skeleton")
+ '(
+ "Short description:"
+ "/*\n"
+ " * " (file-name-nondirectory (buffer-file-name)) "\n"
+ " */" > \n \n
+ "#include <stdio.h>" \n
+ "#include \""
+ (file-name-sans-extension
+ (file-name-nondirectory (buffer-file-name)))
+ ".h\"" \n \n
+ "int main ()\n"
+ "{" \n
+ > _ \n
+ "return 1;\n"
+ "}" > \n
+ )))
+
+#+END_SRC
+
+*** Perl Auto Insert
+
+Refer [[https://www.emacswiki.org/emacs/AutoInsertMode][AutoInsertMode]] Wiki
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (eval-after-load 'autoinsert
+ '(define-auto-insert '("\\.pl\\'" . "Perl skeleton")
+ '(
+ "Description: "
+ "#!/usr/bin/perl -w" \n
+ \n
+ "use strict;" \n \n
+ )))
+
+#+END_SRC
+
+** Completion
+
+company mode
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ (use-package company
+ :ensure t
+ :diminish company-mode
+ :config
+ (global-company-mode))
+
+#+END_SRC