734 lines
24 KiB
EmacsLisp
734 lines
24 KiB
EmacsLisp
;;; emacs.el --- Module file for configuring Emacs itself.
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;;
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;; Copyright (C) 2017-2019 Wojciech Kozlowski
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;;
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;; Author: Wojciech Kozlowski <wk@wojciechkozlowski.eu>
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;; Created: 2017-08-25
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;;
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;; This file is not part of GNU Emacs.
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;;
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;;; Commentary:
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;;
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;; This module is used for generic Emacs configuration.
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;;
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;;; License: GPLv3
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;;; Required packages:
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;;; Code:
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(defvar emodule/emacs-packages
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'(ace-jump-mode
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ace-window
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deadgrep
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dired-subtree
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discover
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discover-my-major
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duplicate-thing
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expand-region
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eyebrowse
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highlight-parentheses
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ibuffer-vc
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iedit
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pdf-tools
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perspective
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projectile
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rainbow-delimiters
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rainbow-mode
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recentf-ext
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smartparens
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treemacs-icons-dired
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undo-tree
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use-package
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vlf
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volatile-highlights
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which-key
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whole-line-or-region
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winner
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ws-butler)
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)
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;;; Configuration:
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(defun emodule/emacs-init ()
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"Initialise the `emacs' module."
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;; --------------------------------------------------------------------------
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;; Basic editor settings.
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;; --------------------------------------------------------------------------
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(setq-default
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;; This slows down cursor scrolling.
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auto-window-vscroll nil
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;; Standard fill-column width - last character is for end of line glyph.
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fill-column 79
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;; Do not use tab characters for indentation.
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indent-tabs-mode nil
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;; Kill whole line when point at beginning of line.
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kill-whole-line t
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;; Large file warning only above 10 MB.
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large-file-warning-threshold 10485760
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;; Keep point in same position on the screen when scrolling.
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scroll-preserve-screen-position 1
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;; sentences end with a single space
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sentence-end-double-space nil
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;; Indentation size - applies even when indent-tabs-mode is nil.
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tab-width 8
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;; Highlight lines that are too long in whitespace mode.
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whitespace-line-column fill-column)
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;; Backup settings.
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(defvar backup-directory "~/.emacs.d/.backups")
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(if (not (file-exists-p backup-directory))
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(make-directory backup-directory t))
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(setq-default
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;; Backup a file the first time it is saved.
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make-backup-files t
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;; Save backup files in ~/.emacs.d/.backups.
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backup-directory-alist `((".*" . ,backup-directory))
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;; Copy the current file into backup directory.
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backup-by-copying t
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;; Version numbers for backup files.
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version-control t
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;; Delete unnecessary versions.
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delete-old-versions t
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;; Oldest versions to keep when a new numbered backup is made.
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kept-old-versions 2
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;; Newest versions to keep when a new numbered backup is made.
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kept-new-versions 3
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;; Auto-save every buffer that visits a file.
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auto-save-default t
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;; Number of seconds idle time before auto-save.
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auto-save-timeout 30
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;; Number of keystrokes between auto-saves.
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auto-save-interval 300)
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;; Update buffers when files change.
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(global-auto-revert-mode)
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;; Replace selected rather than inserting text at point.
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(delete-selection-mode)
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;; Treat CamelCase as separate words.
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(global-subword-mode)
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;; Recentf.
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(recentf-mode 1)
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;; Use UTF-8.
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(set-terminal-coding-system 'utf-8)
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(set-keyboard-coding-system 'utf-8)
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(set-language-environment "UTF-8")
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(prefer-coding-system 'utf-8)
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;; Address mode.
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(add-hook 'prog-mode-hook 'goto-address-mode)
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(add-hook 'text-mode-hook 'goto-address-mode)
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;; y or n is enough.
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(defalias 'yes-or-no-p 'y-or-n-p)
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;; Always use ibuffer.
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(defalias 'list-buffers 'ibuffer)
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;; Increase recursion limits.
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(setq-default max-specpdl-size 20000) ;; ~15x original value
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(setq-default max-lisp-eval-depth 24000) ;; 30x orignal value
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;; Add directories to exec-path.
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(let ((home-dir (getenv "HOME")))
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(setq exec-path
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(append exec-path `(,(concat home-dir "/.local/bin")
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,(concat home-dir "/.cask/bin")))))
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;; --------------------------------------------------------------------------
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;; Configure garbage collection.
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;;
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;; Based on advice from:
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;; http://bling.github.io/blog/2016/01/18/why-are-you-changing-gc-cons-threshold/
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;; --------------------------------------------------------------------------
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(add-hook 'minibuffer-setup-hook
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(lambda () (setq gc-cons-threshold most-positive-fixnum)))
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(add-hook 'minibuffer-exit-hook
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(lambda () (setq gc-cons-threshold 800000)))
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;; --------------------------------------------------------------------------
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;; Additional key-bindings.
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;; --------------------------------------------------------------------------
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;; Toggle whitespace mode.
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(global-set-key (kbd "C-c w") 'whitespace-mode)
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;; Occur. More convenient than "M-s o".
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(global-set-key (kbd "M-s M-o") 'occur)
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;; Kill current buffer without prompting.
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(global-set-key (kbd "C-x k")
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(lambda ()
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(interactive)
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(let (kill-buffer-query-functions) (kill-buffer))))
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;; Scroll up/down, but keep point in place.
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(global-set-key (kbd "C-<") (lambda()
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(interactive)
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(let ((scroll-preserve-screen-position nil))
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(scroll-down 1))))
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(global-set-key (kbd "C->") (lambda()
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(interactive)
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(let ((scroll-preserve-screen-position nil))
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(scroll-up 1))))
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;; --------------------------------------------------------------------------
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;; Dark/light theme switch.
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;; --------------------------------------------------------------------------
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(defun refresh-non-face-colours ()
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"Restart modes that use colours not set with face variables.
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This has to be called whenever the active theme changes to
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refresh these colours."
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(when (and (fboundp 'highlight-parentheses-mode)
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highlight-parentheses-mode)
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(highlight-parentheses-mode 1)))
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;; Key-bindings -------------------------------------------------------------
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(global-set-key (kbd "C-x t l") (lambda ()
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(interactive)
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(load-theme 'havoc-light t)
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(refresh-non-face-colours)))
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(global-set-key (kbd "C-x t d") (lambda ()
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(interactive)
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(load-theme 'havoc-dark t)
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(refresh-non-face-colours)))
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;; --------------------------------------------------------------------------
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;; Toggle indent-tabs-mode. Useful for working with source code
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;; that have a different tab policy.
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;; --------------------------------------------------------------------------
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(defun toggle-indent-tabs-mode ()
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"Toggle a indent-tabs-mode between a defined and undefined state."
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(interactive)
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(setq indent-tabs-mode (not indent-tabs-mode))
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(setq-default indent-tabs-mode indent-tabs-mode))
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;; --------------------------------------------------------------------------
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;; Beginning of line.
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;; --------------------------------------------------------------------------
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(defun x-move-beginning-of-line (arg)
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"Move point back to indentation of beginning of line.
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Move point to the first non-whitespace character on this
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line. If point is already there, move to the beginning of
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the line. Effectively toggle between the first
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non-whitespace character and the beginning of the line.
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If ARG is not nil or 1, move forward ARG - 1 lines first. If
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point reaches the beginning or end of the buffer, stop
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there."
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(interactive "^p")
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(setq arg (or arg 1))
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;; Move lines first
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(when (/= arg 1)
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(let ((line-move-visual nil))
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(forward-line (1- arg))))
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(let ((orig-point (point)))
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(back-to-indentation)
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(when (= orig-point (point))
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(move-beginning-of-line 1))))
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;; Key-bindings -------------------------------------------------------------
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;; Override the beginning of line key-binding.
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(global-set-key (kbd "C-a") 'x-move-beginning-of-line)
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;; --------------------------------------------------------------------------
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;; Transpose lines.
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;; --------------------------------------------------------------------------
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(defun transpose-lines-down ()
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"Transpose the current line with the one below."
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(interactive)
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(forward-line 1)
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(transpose-lines 1)
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(forward-line -1))
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(defun transpose-lines-up ()
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"Transpose the current line with the one above."
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(interactive)
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(transpose-lines 1)
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(forward-line -2))
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;; Key-bindings -------------------------------------------------------------
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(global-set-key (kbd "M-<down>") 'transpose-lines-down)
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(global-set-key (kbd "M-<up>") 'transpose-lines-up)
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;; --------------------------------------------------------------------------
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;; Indent buffer.
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;; --------------------------------------------------------------------------
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(defun indent-buffer ()
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"Indent the currently visited buffer."
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(interactive)
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(indent-region (point-min) (point-max)))
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(defcustom indent-sensitive-modes
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'(coffee-mode python-mode slim-mode haml-mode yaml-mode)
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"Modes for which auto-indenting is suppressed."
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:type 'list
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:group 'emodule/emacs)
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(defun indent-region-or-buffer ()
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"Indent a region if selected, otherwise the whole buffer."
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(interactive)
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(unless (member major-mode indent-sensitive-modes)
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(save-excursion
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(if (region-active-p)
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(indent-region (region-beginning) (region-end))
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(indent-buffer)
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(whitespace-cleanup)))))
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;; Key-bindings -------------------------------------------------------------
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;; Override the indent-region key-binding
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(global-set-key (kbd "C-M-\\") 'indent-region-or-buffer)
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;; --------------------------------------------------------------------------
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;; Unfill paragraph - inverse of fill paragraph.
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;; --------------------------------------------------------------------------
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(defun unfill-paragraph (&optional region)
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"Takes a multi-line paragraph and makes it into a single line of text."
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(interactive (progn (barf-if-buffer-read-only) '(t)))
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(let ((fill-column (point-max))
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;; This would override `fill-column' if it's an integer.
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(emacs-lisp-docstring-fill-column t))
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(fill-paragraph nil region)))
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;; Key-bindings -------------------------------------------------------------
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(global-set-key (kbd "M-Q") 'unfill-paragraph)
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;; --------------------------------------------------------------------------
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;; `ace-jump-mode'
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;; --------------------------------------------------------------------------
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(use-package ace-jump-mode
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:bind (("C-c SPC" . ace-jump-mode)))
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;; --------------------------------------------------------------------------
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;; `ace-window'
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;; --------------------------------------------------------------------------
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(use-package ace-window
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:bind (("M-o" . ace-window)))
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;; --------------------------------------------------------------------------
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;; `deadgrep'
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;; --------------------------------------------------------------------------
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(use-package deadgrep
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:init
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(setq deadgrep-project-root-function
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(lambda () (read-directory-name "Base directory: "
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nil default-directory t)))
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:bind
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(("C-x C-g" . deadgrep))
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(:map deadgrep-mode-map
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("C-o" . deadgrep-open-result-other-window)
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("<RET>" . deadgrep-visit-result-other-window))
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:config
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(defun deadgrep-open-result-other-window ()
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"Open the result in other window without changing to it."
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(interactive)
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(save-selected-window (deadgrep-visit-result-other-window))))
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;; Use rgrep if ripgrep not present.
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(unless (executable-find "rg")
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(global-set-key (kbd "C-x C-g") 'rgrep))
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;; --------------------------------------------------------------------------
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;; `dired'
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;; --------------------------------------------------------------------------
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(use-package dired
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:config
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(setq
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;; If another Dired buffer is visible, use it as target for Rename/Copy.
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dired-dwim-target t
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;; "always" means no asking.
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dired-recursive-copies 'always
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;; "top" means ask once for top level directory.
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dired-recursive-deletes 'top
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;; Human-readable listing
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dired-listing-switches "-lha --group-directories-first")
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;; Automatically refresh dired buffer on changes.
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(add-hook 'dired-mode-hook 'auto-revert-mode))
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(use-package dired-aux
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:after dired
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:config
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(add-to-list 'dired-compress-files-alist '("\\.tar\\'" . "tar -cf %o %i")))
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(use-package dired-subtree
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:after dired
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:bind (:map dired-mode-map
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("TAB" . x-dired-subtree-toggle)
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("<tab>" . x-dired-subtree-toggle))
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:config
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(defun x-dired-subtree-toggle ()
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"Toggle dired subtree and revert buffer."
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(interactive)
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(dired-subtree-toggle)
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(dired-revert)))
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(use-package dired-x
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:after dired
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:init
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(add-hook 'dired-mode-hook 'dired-omit-mode)
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:config
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(setq-default dired-omit-files "^\\.\\|^\\#"))
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(use-package wdired
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:after dired
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:config
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(setq-default wdired-allow-to-change-permissions t
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wdired-allow-to-redirect-links t))
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(use-package treemacs-icons-dired
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:after dired
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:hook (dired-mode . treemacs-icons-dired-mode))
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;; --------------------------------------------------------------------------
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;; `discover'
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;; --------------------------------------------------------------------------
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(use-package discover
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:init (global-discover-mode))
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;; --------------------------------------------------------------------------
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;; `discover-my-major'
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;; --------------------------------------------------------------------------
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(use-package discover-my-major
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:bind
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(("C-h M" . discover-my-major)))
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;; --------------------------------------------------------------------------
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;; `duplicate-thing'
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;; --------------------------------------------------------------------------
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(use-package duplicate-thing
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:bind (("M-C" . duplicate-thing)))
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;; --------------------------------------------------------------------------
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;; `expand-region'
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;; --------------------------------------------------------------------------
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(use-package expand-region
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:bind (("C-'" . er/expand-region)))
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(use-package eyebrowse
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:after perspective
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:config
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(require 'eyepersp)
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(setq eyebrowse-default-workspace-slot 0)
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(eyebrowse-mode))
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;; --------------------------------------------------------------------------
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;; `flyspell'
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;; --------------------------------------------------------------------------
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(use-package flyspell
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:bind
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(("C-c C-'" . flyspell-correct-word-before-point))
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:hook
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(((text-mode org-mode) . flyspell-mode)
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(prog-mode . flyspell-prog-mode))
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:config
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(if (executable-find "aspell")
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(progn
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(setq-default ispell-program-name "aspell")
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(setq-default ispell-extra-args '("--sug-mode=ultra")))
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(setq-default ispell-program-name "ispell"))
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(unbind-key "C-M-i" flyspell-mode-map))
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;; --------------------------------------------------------------------------
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;; `highlight-parentheses' - this package does not use faces for colours,
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;; instead it uses the `hl-parens-colors' variable. This can be set in the
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;; theme file, but the mode has to be reloaded whenever the theme changes.
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;; --------------------------------------------------------------------------
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(use-package highlight-parentheses
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:hook
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(prog-mode . highlight-parentheses-mode))
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;; --------------------------------------------------------------------------
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;; `ibuffer-vc'
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;; --------------------------------------------------------------------------
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(use-package ibuffer-vc
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:defer t
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:init
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(add-hook 'ibuffer-hook
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(lambda ()
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(ibuffer-vc-set-filter-groups-by-vc-root)
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(unless (eq ibuffer-sorting-mode 'alphabetic)
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(ibuffer-do-sort-by-alphabetic))))
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:config
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(setq ibuffer-formats
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'((mark modified read-only vc-status-mini " "
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(name 36 36 :left :elide)
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" "
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(size 9 -1 :right)
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" "
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(mode 16 16 :left :elide)
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" "
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(vc-status 16 16 :left)
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" "
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filename-and-process))))
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;; --------------------------------------------------------------------------
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;; `iedit'
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;; --------------------------------------------------------------------------
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(use-package iedit
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:bind (("C-;" . iedit-mode)))
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;; --------------------------------------------------------------------------
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;; `pdf-tools' - use instead of DocView.
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;; --------------------------------------------------------------------------
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(use-package pdf-tools
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:config
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(pdf-tools-install))
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;; --------------------------------------------------------------------------
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;; `perspective'
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;; --------------------------------------------------------------------------
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(use-package perspective
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:config
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(persp-mode))
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;; --------------------------------------------------------------------------
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;; `projectile'
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;; --------------------------------------------------------------------------
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(use-package projectile
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:defer nil
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:bind
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(("C-c p" . projectile-command-map))
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:config
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(projectile-mode))
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;; --------------------------------------------------------------------------
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;; `rainbow-delimiters' - colours are set by theme.
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;; --------------------------------------------------------------------------
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(use-package rainbow-delimiters
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:hook
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(prog-mode . rainbow-delimiters-mode))
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;; --------------------------------------------------------------------------
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;; `rainbow-mode'
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;; --------------------------------------------------------------------------
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(use-package rainbow-mode
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:defer t)
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;; --------------------------------------------------------------------------
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;; `recentf-ext'
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;; --------------------------------------------------------------------------
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(use-package recentf-ext)
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;; --------------------------------------------------------------------------
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;; `saveplace' - remember location in file.
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;; --------------------------------------------------------------------------
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(use-package saveplace
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:init
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(save-place-mode 1))
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;; --------------------------------------------------------------------------
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;; `smartparens'
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;; --------------------------------------------------------------------------
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(use-package smartparens
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:config
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(require 'smartparens-config)
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(sp-with-modes '(c-mode c++-mode)
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(sp-local-pair "<" ">"))
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(smartparens-global-mode t)
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(show-smartparens-global-mode t)
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;; Key-bindings -----------------------------------------------------------
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(define-key smartparens-mode-map (kbd "C-M-f") 'sp-forward-sexp)
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(define-key smartparens-mode-map (kbd "C-M-b") 'sp-backward-sexp)
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(define-key smartparens-mode-map (kbd "C-M-u") 'sp-backward-up-sexp)
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(define-key smartparens-mode-map (kbd "C-M-S-u") 'sp-up-sexp)
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(define-key smartparens-mode-map (kbd "C-M-d") 'sp-down-sexp)
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(define-key smartparens-mode-map (kbd "C-M-S-d") 'sp-backward-down-sexp)
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(define-key smartparens-mode-map (kbd "C-S-a") 'sp-beginning-of-sexp)
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(define-key smartparens-mode-map (kbd "C-S-e") 'sp-end-of-sexp)
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(define-key smartparens-mode-map (kbd "C-M-t") 'sp-transpose-sexp)
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(define-key smartparens-mode-map (kbd "C-M-n") 'sp-next-sexp)
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(define-key smartparens-mode-map (kbd "C-M-p") 'sp-previous-sexp)
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(define-key smartparens-mode-map (kbd "C-M-k") 'sp-kill-sexp)
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(define-key smartparens-mode-map (kbd "C-M-w") 'sp-copy-sexp)
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(define-key smartparens-mode-map (kbd "C-<right>") 'sp-forward-slurp-sexp)
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(define-key smartparens-mode-map (kbd "C-<left>") 'sp-forward-barf-sexp)
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|
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(define-key smartparens-mode-map (kbd "M-D") 'sp-splice-sexp)
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|
(define-key smartparens-mode-map (kbd "C-S-d") 'sp-splice-sexp-killing-forward)
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|
(define-key smartparens-mode-map (kbd "C-M-<backspace>") 'sp-splice-sexp-killing-backward)
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(define-key smartparens-mode-map (kbd "C-S-<backspace>") 'sp-splice-sexp-killing-around)
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|
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(define-key smartparens-mode-map (kbd "C-]") 'sp-select-next-thing-exchange)
|
|
(define-key smartparens-mode-map (kbd "C-M-]") 'sp-select-next-thing)
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|
|
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(define-key smartparens-mode-map (kbd "M-F") 'sp-forward-symbol)
|
|
(define-key smartparens-mode-map (kbd "M-B") 'sp-backward-symbol)
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|
|
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(define-key smartparens-mode-map (kbd "C-c f")
|
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(lambda () (interactive) (sp-beginning-of-sexp 2)))
|
|
(define-key smartparens-mode-map (kbd "C-c b")
|
|
(lambda () (interactive) (sp-beginning-of-sexp -2)))
|
|
|
|
;; rst-mode
|
|
(sp-with-modes 'rst-mode
|
|
(sp-local-pair "`" nil :actions nil)
|
|
(sp-local-pair "``" "``"))
|
|
|
|
;; Smartparens custom settings --------------------------------------------
|
|
|
|
(setq-default
|
|
;; Jump to closing parenthesis when closing symbol is typed.
|
|
sp-autoskip-closing-pair t
|
|
;; Do not automatically reindent anything.
|
|
sp-navigate-reindent-after-up nil
|
|
sp-navigate-reindent-after-up-in-string nil
|
|
;; Do not highlight space between parentheses.
|
|
sp-highlight-pair-overlay nil))
|
|
|
|
;; --------------------------------------------------------------------------
|
|
;; `tramp'
|
|
;; --------------------------------------------------------------------------
|
|
|
|
(use-package tramp
|
|
:defer t
|
|
:config
|
|
(setq-default tramp-default-method "ssh")
|
|
;; This line proxies all sudo connections via an ssh connection to the
|
|
;; provided hostname.
|
|
(add-to-list 'tramp-default-proxies-alist '(nil "\\`root\\'" "/ssh:%h:"))
|
|
;; This rule is an exception to the above so that local sudo does not proxy
|
|
;; via ssh. This has to be added last so that it is the first element of
|
|
;; the list.
|
|
(add-to-list 'tramp-default-proxies-alist '("localhost" "\\`root\\'" nil))
|
|
|
|
(defun sudo ()
|
|
"Use TRAMP to `sudo' the current buffer"
|
|
(interactive)
|
|
(when buffer-file-name
|
|
(find-alternate-file
|
|
(concat "/sudo:root@localhost:"
|
|
buffer-file-name)))))
|
|
|
|
;; --------------------------------------------------------------------------
|
|
;; `undo-tree' - to undo "C-\", to redo "C-_", undo tree "C-x u".
|
|
;; --------------------------------------------------------------------------
|
|
|
|
(use-package undo-tree
|
|
:config
|
|
(global-undo-tree-mode))
|
|
|
|
;; --------------------------------------------------------------------------
|
|
;; `vlf' - view large files.
|
|
;; --------------------------------------------------------------------------
|
|
|
|
(use-package vlf-integrate
|
|
:defer t
|
|
:init
|
|
(setq-default vlf-application 'dont-ask))
|
|
|
|
;; --------------------------------------------------------------------------
|
|
;; `volatile-highlights' - highlight changes caused by undo, yank, etc.
|
|
;; --------------------------------------------------------------------------
|
|
|
|
(use-package volatile-highlights
|
|
:config
|
|
(volatile-highlights-mode t))
|
|
|
|
;; --------------------------------------------------------------------------
|
|
;; `winner' - undo/redo window configuration.
|
|
;; --------------------------------------------------------------------------
|
|
|
|
(use-package winner
|
|
:init (winner-mode 1)
|
|
:bind (("C-z" . winner-undo)))
|
|
|
|
;; --------------------------------------------------------------------------
|
|
;; `which-key'
|
|
;; --------------------------------------------------------------------------
|
|
|
|
(use-package which-key
|
|
:init
|
|
(setq which-key-separator " ")
|
|
(setq which-key-prefix-prefix "+")
|
|
:config
|
|
(which-key-mode 1))
|
|
|
|
;; --------------------------------------------------------------------------
|
|
;; `whole-line-or-region' - kill line when calling kill-region without a
|
|
;; selected region.
|
|
;; --------------------------------------------------------------------------
|
|
|
|
(use-package whole-line-or-region
|
|
:config
|
|
(whole-line-or-region-global-mode t))
|
|
|
|
;; --------------------------------------------------------------------------
|
|
;; `ws-butler' - will cleanup whitespace on all modified files on save.
|
|
;; --------------------------------------------------------------------------
|
|
|
|
(use-package ws-butler
|
|
:config
|
|
(ws-butler-global-mode))
|
|
|
|
;; --------------------------------------------------------------------------
|
|
;; `zoom-window'.
|
|
;; --------------------------------------------------------------------------
|
|
|
|
(use-package zoom-window
|
|
:bind (("C-x C-z" . zoom-window-zoom)))
|
|
|
|
)
|
|
|
|
(provide 'emodule/emacs)
|
|
;;; emacs.el ends here
|