Emacs Init: Sample Init
Here's a sample Init File , that sets all basics. No external packages are required.
;; -*- coding: utf-8; lexical-binding: t; -*- ;; basic gnu emacs settings. Everything in this file is for plain gnu emacs only. ;; for emacs 28 or later. ;; Version: 2024-08-21 ;; Emacs: Init File Tutorial ;; http://xahlee.info/emacs/emacs/emacs_init_file.html ;; HHHH------------------------------ ;; UTF-8 as default encoding ;; http://xahlee.info/emacs/emacs/emacs_file_encoding.html ;; http://xahlee.info/emacs/emacs/emacs_encoding_decoding_faq.html (set-language-environment "utf-8") (set-default-coding-systems 'utf-8-unix) (set-keyboard-coding-system 'utf-8-unix) (set-terminal-coding-system 'utf-8-unix) ;; HHHH------------------------------ ;; initial window and default window ;; http://xahlee.info/emacs/emacs/emacs_customize_default_window_size.html (setq inhibit-startup-screen t) (push '(tool-bar-lines . 0) default-frame-alist) (push '(background-color . "honeydew") default-frame-alist) ;; HHHH------------------------------ ;; backup ;; http://xahlee.info/emacs/emacs/emacs_set_backup_into_a_directory.html (setq make-backup-files t) ;; make multiple versions, ending in ~1~ ~2~ etc (setq version-control t) ;; make sure hard link and creation date, owner, etc is preserved (setq backup-by-copying t) ;; make backup even in git controlled dir (setq vc-make-backup-files t) ;; silently delete old backup (setq delete-old-versions :no) ; default nil ;; t means silent delete ;; nil means ask ;; other values means do not delete ;; (setq kept-old-versions 2) ; default 2 ;; (setq kept-new-versions 2) ; default 2 ;; function that decide a file should be backed up ;; (setq backup-enable-predicate 'normal-backup-enable-predicate ) ;; a alist (regex . dir) to decide where to place backup ;; (setq backup-directory-alist '(("." . "~/.emacs.d/backup"))) ;; HHHH------------------------------ ;;; real auto save ;; Emacs: Real Automatic Save File ;; http://xahlee.info/emacs/emacs/emacs_auto_save.html ;; (when (>= emacs-major-version 26) ;; (auto-save-visited-mode 1) ;; (setq auto-save-visited-interval 30) ; default 5 ;; ) (defun xah-save-all-unsaved () "Save all unsaved files. no ask. Version 2019-11-05" (interactive) (save-some-buffers t )) (when (>= emacs-major-version 27) (setq after-focus-change-function 'xah-save-all-unsaved) ;; to undo this, run ;; (setq after-focus-change-function 'ignore) ) ;; Emacs: auto-save (filename with #hashtag#) ;; http://xahlee.info/emacs/emacs/emacs_auto-save_backup.html (setq auto-save-default nil) (setq create-lockfiles nil) ;; HHHH------------------------------ ;; Emacs: Bookmark Init ;; http://xahlee.info/emacs/emacs/emacs_bookmark_init.html ;; save bookmark on change (setq bookmark-save-flag 1) ;; HHHH------------------------------ ;; file related ;; auto refresh ;; http://xahlee.info/emacs/emacs/emacs_refresh_file.html (global-auto-revert-mode 1) ;; Emacs: Open Recently Opened File ;; http://xahlee.info/emacs/emacs/emacs_recentf.html (require 'recentf) (recentf-mode 1) (progn ;; (desktop-save-mode 1) (setq desktop-restore-frames t) (setq desktop-auto-save-timeout 300) (setq desktop-globals-to-save nil) ;; (setq desktop-globals-to-save '(desktop-missing-file-warning tags-file-name tags-table-list search-ring regexp-search-ring register-alist file-name-history)) (setq desktop-save t)) ;; HHHH------------------------------ ;; user interface (when (> emacs-major-version 26) (global-display-line-numbers-mode)) (column-number-mode 1) (blink-cursor-mode 0) ;; (setq use-dialog-box nil) (progn ;; no need to warn (put 'narrow-to-region 'disabled nil) (put 'narrow-to-page 'disabled nil) (put 'upcase-region 'disabled nil) (put 'downcase-region 'disabled nil) (put 'erase-buffer 'disabled nil) (put 'scroll-left 'disabled nil) ) (setq mouse-highlight nil) ;; HHHH------------------------------ ;; Emacs: Dired Customization ;; http://xahlee.info/emacs/emacs/emacs_dired_tips.html ;; copy, move, rename etc to the other pane (setq dired-dwim-target t) ;; allow copy dir with subdirs (setq dired-recursive-copies 'top) (setq dired-recursive-deletes 'top) (put 'dired-find-alternate-file 'disabled nil) ;; some goodies (require 'dired-x) ;; HHHH------------------------------ (progn ;; minibuffer setup (setq enable-recursive-minibuffers t) (savehist-mode 0) ;; big minibuffer height, for ido to show choices vertically (setq max-mini-window-height 0.5) ;; minibuffer, stop cursor going into prompt (customize-set-variable 'minibuffer-prompt-properties (quote (read-only t cursor-intangible t face minibuffer-prompt)))) (when (>= emacs-major-version 28) (progn (setq completion-styles '(flex)) (icomplete-vertical-mode 1))) ;; HHHH------------------------------ ;; remember cursor position (when (>= emacs-major-version 25) (save-place-mode 1)) ;; HHHH------------------------------ ;;; editing related ;; make typing delete/overwrites selected text (delete-selection-mode 1) ;; disable shift select (setq shift-select-mode nil) (electric-pair-mode 1) ;; for isearch-forward, make these equivalent: space newline tab hyphen underscore (setq search-whitespace-regexp "[-_ \t\n]+") (setq composition-break-at-point t) (setq hippie-expand-try-functions-list '( try-expand-dabbrev try-expand-dabbrev-all-buffers ;; try-expand-dabbrev-from-kill try-complete-lisp-symbol-partially try-complete-lisp-symbol try-complete-file-name-partially try-complete-file-name ;; try-expand-all-abbrevs ;; try-expand-list ;; try-expand-line )) ;; 2015-07-04 bug of pasting in emacs. ;; http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16737#17 ;; http://xahlee.info/emacs/misc/emacs_bug_cant_paste_2015.html ;; (setq x-selection-timeout 300) ;; (setq save-interprogram-paste-before-kill t) ;; (setq x-select-enable-clipboard-manager nil) ;; HHHH------------------------------ ;; editing, mark ;; Emacs: Jump to Previous Position ;; http://xahlee.info/emacs/emacs/emacs_jump_to_previous_position.html ;; repeated C-u set-mark-command move cursor to previous mark in current buffer (setq set-mark-command-repeat-pop t) (setq mark-ring-max 10) (setq global-mark-ring-max 10) ;; HHHH------------------------------ ;;; rendering related for coding/editting ;; force line wrap to wrap at word boundaries ;; http://xahlee.info/emacs/emacs/emacs_toggle-word-wrap.html (setq-default word-wrap t) ;; set highlighting brackets (show-paren-mode 1) (setq show-paren-style 'parenthesis) ;; HHHH------------------------------ ;; Emacs: Tab/Indent Setup ;; http://xahlee.info/emacs/emacs/emacs_tabs_space_indentation_setup.html (electric-indent-mode 0) (set-default 'tab-always-indent 'complete) ;; no mixed tab space (setq-default indent-tabs-mode nil) ; gnu emacs at least 23.1 to 28 default is t ;; gnu emacs default to 8. tooo big. but problem of diff value is that some elisp source code in gnu emacs expected 8 to look nice, cuz they use mixed tab and space. but in golang, 8 is too much. also, python and others, standardize to 4 (setq-default tab-width 4) (setq sentence-end-double-space nil ) ;; HHHH------------------------------ ;; load emacs 24's package system. Add MELPA repository. (when (>= emacs-major-version 24) (require 'package) (add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/") t)) ;; HHHH------------------------------ (progn ;; Make whitespace-mode with very basic background coloring for whitespaces. ;; http://xahlee.info/emacs/emacs/whitespace-mode.html (setq whitespace-style (quote (face spaces tabs newline space-mark tab-mark newline-mark))) ;; Make whitespace-mode and whitespace-newline-mode use “¶” for end of line char and “▷” for tab. (setq whitespace-display-mappings ;; all numbers are unicode codepoint in decimal. e.g. (insert-char 182 1) '((space-mark 32 [183] [46]) ; SPACE 32 「 」, 183 MIDDLE DOT 「·」, 46 FULL STOP 「.」 (newline-mark 10 [182 10]) ; LINE FEED, (tab-mark 9 [9655 9] [92 9]) ; tab ))) ;; HHHH------------------------------ (if (version< emacs-version "28.1") (defalias 'yes-or-no-p 'y-or-n-p) (setq use-short-answers t)) ;; HHHH------------------------------ ;; 2021-12-21. fuck Alan Mackenzie ;; Emacs Lisp Doc String Curly Quote Controversy ;; http://xahlee.info/emacs/misc/emacs_lisp_curly_quote_controversy.html (setq text-quoting-style 'grave) ;; 2023-08-04 turn off byte compile warning on unescaped single quotes (setq byte-compile-warnings '(not docstrings) ) (setq byte-compile-docstring-max-column 999) ;; HHHH------------------------------ ;; up/down arrow move based on logical lines (newline char) or visual line (setq line-move-visual nil) ;; default is t ;; http://xahlee.info/emacs/emacs/emacs_arrow_down_move_by_line.html ;; HHHH------------------------------ ;; (global-tab-line-mode) (tooltip-mode -1) ;; HHHH------------------------------ ;; 2023-01-24 apache per dir config file (add-to-list 'auto-mode-alist '("\\.htaccess\\'" . conf-unix-mode)) ;; 2023-01-24 pdf mode is super slow. should use dedicated app (add-to-list 'auto-mode-alist '("\\.pdf\\'" . fundamental-mode))