编辑技巧
使用一些技巧，在编辑文本的过程中，更有效率，比如快速替换，快速选择，多行同时编辑等。
需求
- 快速修改特定的字符串
- 快速改变英文字符串大小写
- 修改当前文件名
- 快速移动当前文件
- 快速打开配置文件
- 代码块缩进跟随
- 代码块移动
- 快速跳转
- 自动重新加载
- 文件内容对比
- 符号自动配对
- 插入时删除选择
- 撤销管理
- 高亮光标所在符号字符
- 优化行首跳转
- 高亮光标位置
解决方案
multiple-cursors
针对多行，多光标编辑，批量修改字符串等，主要应对，在不同的位置不错相同的内容。它可以补充 iedit 的缺点，进行多光标编辑。实际上它本身包括了 iedit 的所有功能，但是对选择标记没有高亮，所以，在正常情况下，使用 iedit 更多一些，特别是批量修改内容时。只有在对不同位置进行编辑时使用 multiple-cursors 。
iedit
同时编辑相同的地方。在做代码重构的过程中经常使用的技巧，原来需要多次编辑的地方，可以一次选择标记高亮显示进行编辑。缺点，无法进行多光标编辑，比如在多行不同位置插入相同的文本内容时，它无法完成。
expand-region
扩展标记选择，对标记的内容进行扩展，收缩。有时候选择少了，可以使用它进行扩展标记，选择多了就收缩选择范围。
selected
对选择的区域进行快速编辑的快捷键绑定，比如标记一个字符串，那么可以通过简单的快捷键进行修改编辑。
undo-tree
撤销管理，显示一个编辑点的树，可以通过上下左右方向键进行快速撤销到某一个编辑点，很直观的显示，让撤销恢复变得可视化，不容易出错。
delsel
在插入数据时，删除标记选择。
elec-pair
自动匹配括号的后半部分。
ediff
快速对比两个文件的差异，支持多个文件对比，比如对不同版本的文件进行对比差异性。
hungry-delete
删除光标前后多余的空格。
autorevert
自动重新加载被外部程序修改的文件。
drag-stuff
快速移动代码块，支持行，字，标记内容等。
flyspell
拼写检查。
rainbow-mode
颜色显示，经常在编辑 css 等文件时，想要显示颜色时使用。
kurecolor
颜色编辑工具，配合 rainbow-mode 使用。
aggressive-indent
编辑代码时，自动缩进，特别是修改代码结构时非常有用，代码编辑缩进跟随当前。
anzu
搜索替换时，自动标记高亮匹配的内容。能快速识别匹配的内容。
beacon
高亮鼠标所在行，一个长长的尾巴，这样能快速的看到光标所在位置。
hl-todo
高亮 TODO 关键字，容易识别那些需要接下来做的事情。
symbol-overlay
标记高亮显示。
avy
快速跳转，可以通过字符，字等快速跳转到某行。
mwim
快速跳转行首尾，包括注释。避免跳转行尾时直接跑到注释后面。必须按两次才到最后一个字符。
goto-chg
快速跳转到最后编辑的位置。
goto-last-point
快速跳转到光标的最后位置。
dumb-jump
代码定义跳转。
origami
代码块隐藏/显示。
focus
聚焦光标位置，写作或者编写代码时用起来舒服，专注当前编辑。
实现代码
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|
(use-package flyspell
:ensure t
:diminish
:if (executable-find "aspell")
:hook (((text-mode outline-mode) . flyspell-mode)
(prog-mode . flyspell-prog-mode)
(flyspell-mode . (lambda ()
(dolist (key '("C-;" "C-," "C-."))
(unbind-key key flyspell-mode-map)))))
:init (setq flyspell-issue-message-flag nil
ispell-program-name "aspell"
ispell-extra-args '("--sug-mode=ultra" "--lang=en_US" "--run-together"))
:config
;; Correcting words with flyspell via Ivy
(use-package flyspell-correct-ivy
:after ivy
:bind (:map flyspell-mode-map
([remap flyspell-correct-word-before-point] . flyspell-correct-wrapper))
:init (setq flyspell-correct-interface #'flyspell-correct-ivy)))
;; Automatically reload files was modified by external program
(use-package autorevert
:ensure t
:diminish
:hook (after-init . global-auto-revert-mode))
;; delete hungry
(use-package hungry-delete)
;; ;; Drag stuff (lines, words, region, etc...) around
(use-package drag-stuff
:diminish
:commands drag-stuff-define-keys
:hook (after-init . drag-stuff-global-mode)
:config
(add-to-list 'drag-stuff-except-modes 'org-mode)
(drag-stuff-define-keys))
;; A comprehensive visual interface to diff & patch
(use-package ediff
:ensure nil
:hook(;; show org ediffs unfolded
(ediff-prepare-buffer . outline-show-all)
;; restore window layout when done
(ediff-quit . winner-undo))
:config
(setq ediff-window-setup-function 'ediff-setup-windows-plain)
(setq ediff-split-window-function 'split-window-horizontally)
(setq ediff-merge-split-window-function 'split-window-horizontally))
;; Rectangle
(use-package rect
:ensure nil
:bind (:map text-mode-map
("<C-return>" . rect-hydra/body)
:map prog-mode-map
("<C-return>" . rect-hydra/body))
:init (with-eval-after-load 'org
(bind-key "<C-M-return>" #'rect-hydra/body org-mode-map))
:pretty-hydra
((:title "Rectangle" :color amaranth :body-pre (rectangle-mark-mode) :post (deactivate-mark) :quit-key ("q" "C-g"))
("Move"
(("h" backward-char "←")
("j" next-line "↓")
("k" previous-line "↑")
("l" forward-char "→"))
"Action"
(("w" copy-rectangle-as-kill "copy") ; C-x r M-w
("y" yank-rectangle "yank") ; C-x r y
("t" string-rectangle "string") ; C-x r t
("d" kill-rectangle "kill") ; C-x r d
("c" clear-rectangle "clear") ; C-x r c
("o" open-rectangle "open")) ; C-x r o
"Misc"
(("N" rectangle-number-lines "number lines") ; C-x r N
("e" rectangle-exchange-point-and-mark "exchange") ; C-x C-x
("u" undo "undo")
("r" (if (region-active-p)
(deactivate-mark)
(rectangle-mark-mode 1))
"reset")))))
;; Automatic parenthesis pairing
(use-package elec-pair
:ensure nil
:hook (after-init . electric-pair-mode)
:init (setq electric-pair-inhibit-predicate 'electric-pair-conservative-inhibit))
;; Edit multiple regions in the same way simultaneously
(use-package iedit
:defines desktop-minor-mode-table
:bind (("C-;" . iedit-mode)
("C-x r RET" . iedit-rectangle-mode)
:map isearch-mode-map ("C-;" . iedit-mode-from-isearch)
:map esc-map ("C-;" . iedit-execute-last-modification)
:map help-map ("C-;" . iedit-mode-toggle-on-function))
:config
;; Avoid restoring `iedit-mode'
(with-eval-after-load 'desktop
(add-to-list 'desktop-minor-mode-table
'(iedit-mode nil))))
;; Delete selection if you insert
(use-package delsel
:hook (after-init . delete-selection-mode))
;; edit undo tree
(use-package undo-tree
:init
(global-undo-tree-mode))
(use-package rainbow-mode
:hook ((html-mode css-mode) . rainbow-mode)
:bind (("C-x c m" . rainbow-mode-hydra/body))
:pretty-hydra
((:title (pretty-hydra-title "Colors Management" 'faicon "windows")
:foreign-keys warn :quit-key "q")
("Actions"
(("w" kurecolor-decrease-brightness-by-step "kurecolor-decrease-brightness-by-step")
("W" kurecolor-increase-brightness-by-step "kurecolor-increase-brightness-by-step")
("d" kurecolor-decrease-saturation-by-step "kurecolor-decrease-saturation-by-step")
("D" kurecolor-increase-saturation-by-step "kurecolor-increase-saturation-by-step")
("e" kurecolor-decrease-hue-by-step "kurecolor-decrease-hue-by-step")
("E" kurecolor-increase-hue-by-step "kurecolor-increase-hue-by-step"))))
:config
(use-package kurecolor))
;; Highlight brackets according to their depth
(use-package rainbow-delimiters
:hook (prog-mode . rainbow-delimiters-mode))
;; Increase selected region by semantic units
(use-package expand-region
:bind (("M-+" . er/expand-region)
("M--" . er/contract-region)))
(use-package selected
:bind (:map selected-keymap
("c" . copy-region-as-kill)
("e" . er/expand-region)
("E" . er/contract-region)
("l" . downcase-region)
("u" . upcase-region)
("w" . kill-region)
("W" . count-words-region)
("m" . apply-macro-to-region-lines)
("/" . indent-region)
(";" . comment-or-uncomment-region))
:init
(selected-global-mode))
;; Multiple cursors
(use-package multiple-cursors
:pretty-hydra
((:title (pretty-hydra-title "Multiple-Cursors" 'material "border_all" :height 1.1 :v-adjust -0.225)
:color amaranth :quit-key ("q" "C-g"))
("Actions"
(
("@" mc/edit-lines "edit lines")
("," mc/skip-to-next-like-this "skip to next like this")
("." mc/skip-to-previous-like-this "skip to previous like this")
("/" mc/mark-pop "Mark pop")
(";" mc/mark-all-words-like-this "Only mark all matches word")
("[" mc/mark-next-word-like-this "Only mark next like this world")
("]" mc/mark-previous-word-like-this "Only mark previous like this word")
("+" mc/mark-all-words-like-this-in-defun "Only mark all current function matches word")
("f" mc/mark-all-like-this-in-defun "Mark all current function matches the current region")
)
"---"
(
("m" mc/mark-all-like-this "Mark all matches the current region")
("n" mc/mark-next-like-this "Add cursor to next line")
("M" mc/mark-all-dwim "Smart mark all")
("N" mc/unmark-next-like-this "Unmark next like this")
("p" mc/mark-previous-like-this "Add cursor to previous line")
("P" mc/unmark-previous-like-this "Unmark previous like this")
("w" mc/mark-next-like-this-word "Mark next like this word")
("W" mc/mark-previous-like-this-word "Mark previous like this word")
("<mouse-1>" mc/add-cursor-on-click "Bind to a mouse event to add cursors by clicking")
)))
:bind (("C-M-<mouse-1>" . mc/add-cursor-on-click)
("<mouse-1>" . mc/keyboard-quit)
("C->" . mc/mark-next-lines)
("C-<" . mc/mark-previous-lines)
("<double-mouse-1>" . mouse-set-point)
("C-M-SPC" . set-rectangular-region-anchor)
("C->" . mc/mark-next-like-this)
("C-<" . mc/mark-previous-like-this)
("C-c C->" . mc/mark-all-like-this)
("C-c SPC" . mc/edit-lines)
:map mc/keymap
("C-|" . mc/vertical-align-with-space))
:config
(defun my-append-to-list (list-var elements)
"Append ELEMENTS to the end of LIST-VAR.
The return value is the new value of LIST-VAR."
(unless (consp elements)
(error "ELEMENTS must be a list"))
(let ((list (symbol-value list-var)))
(if list
(setcdr (last list) elements)
(set list-var elements)))
(symbol-value list-var))
(with-eval-after-load 'multiple-cursors-core
(my-append-to-list 'mc--default-cmds-to-run-once '(swiper-mc
mouse-drag-region-rectangle
mc/vertical-align-with-space
multiple-cursors-hydra/body
multiple-cursors-hydra/mc/mark-next-like-this
multiple-cursors-hydra/mc/mark-next-like-this-word
multiple-cursors-hydra/mc/mark-next-word-like-this
multiple-cursors-hydra/mc/mark-previous-like-this
multiple-cursors-hydra/mc/mark-previous-like-this-word
multiple-cursors-hydra/mc/mark-previous-word-like-this
multiple-cursors-hydra/mc/add-cursor-on-click
multiple-cursors-hydra/mc/mark-pop
multiple-cursors-hydra/mc/unmark-next-like-this
multiple-cursors-hydra/mc/unmark-previous-like-this
multiple-cursors-hydra/mc/skip-to-next-like-this
multiple-cursors-hydra/mc/skip-to-previous-like-this
multiple-cursors-hydra/mc/edit-lines
multiple-cursors-hydra/mc/mark-all-like-this
multiple-cursors-hydra/mc/mark-all-words-like-this
multiple-cursors-hydra/mc/mark-all-like-this-in-defun
multiple-cursors-hydra/mc/mark-all-words-like-this-in-defun
multiple-cursors-hydra/mc/mark-all-dwim
multiple-cursors-hydra/nil))
;; (my-append-to-list 'mc--default-cmds-to-run-for-all '(mc/vertical-align-with-space))
(mc/save-lists))
(with-eval-after-load 'hungry-delete
(add-to-list 'mc--default-cmds-to-run-for-all 'hungry-delete-backward)
(mc/save-lists))
:init
(setq mc/list-file (concat dotfairy-etc-dir "mc-lists.el")))
;; Smartly select region, rectangle, multi cursors
(use-package smart-region
:hook (after-init . smart-region-on))
(use-package wgrep
:init
(setq wgrep-auto-save-buffer t
wgrep-change-readonly-file t))
;; Minor mode to aggressively keep your code always indented
(use-package aggressive-indent
:diminish
:hook ((after-init . global-aggressive-indent-mode)
;; FIXME: Disable in big files due to the performance issues
;; https://github.com/Malabarba/aggressive-indent-mode/issues/73
(find-file . (lambda ()
(if (> (buffer-size) (* 3000 80))
(aggressive-indent-mode -1)))))
:config
;; Disable in some modes
(dolist (mode '(asm-mode web-mode html-mode css-mode go-mode scala-mode prolog-inferior-mode))
(push mode aggressive-indent-excluded-modes))
;; Disable in some commands
(add-to-list 'aggressive-indent-protected-commands #'delete-trailing-whitespace t)
;; Be slightly less aggressive in C/C++/C#/Java/Go/Swift
(add-to-list 'aggressive-indent-dont-indent-if
'(and (derived-mode-p 'c-mode 'c++-mode 'csharp-mode
'java-mode 'go-mode 'swift-mode)
(null (string-match "\\([;{}]\\|\\b\\(if\\|for\\|while\\)\\b\\)"
(thing-at-point 'line))))))
;; Show number of matches in mode-line while searching
(use-package anzu
:diminish
:bind (([remap query-replace] . anzu-query-replace)
([remap query-replace-regexp] . anzu-query-replace-regexp)
:map isearch-mode-map
([remap isearch-query-replace] . anzu-isearch-query-replace)
([remap isearch-query-replace-regexp] . anzu-isearch-query-replace-regexp))
:hook (after-init . global-anzu-mode))
;; Redefine M-< and M-> for some modes
(use-package beginend
:diminish (beginend-mode beginend-global-mode)
:hook (after-init . beginend-global-mode)
:config
(mapc (lambda (pair)
(add-hook (car pair) (lambda () (diminish (cdr pair)))))
beginend-modes))
(use-package beacon
:ensure t
:init
(beacon-mode 1)
:config
(setq beacon-color "#666600"))
;; TODO
(use-package hl-todo
:hook (after-init . global-hl-todo-mode)
:config
(dolist (keyword '("BUG" "DEFECT" "ISSUE"))
(cl-pushnew `(,keyword . ,(face-foreground 'error)) hl-todo-keyword-faces))
(dolist (keyword '("WORKAROUND" "HACK" "TRICK"))
(cl-pushnew `(,keyword . ,(face-foreground 'warning)) hl-todo-keyword-faces)))
;; Highlight symbols
(use-package symbol-overlay
:diminish
:functions (turn-off-symbol-overlay turn-on-symbol-overlay)
:custom-face (symbol-overlay-default-face ((t (:inherit (region bold)))))
:bind (("M-i" . symbol-overlay-put)
("M-n" . symbol-overlay-jump-next)
("M-p" . symbol-overlay-jump-prev)
("M-N" . symbol-overlay-switch-forward)
("M-P" . symbol-overlay-switch-backward)
("M-C" . symbol-overlay-remove-all)
([M-f3] . symbol-overlay-remove-all))
:hook ((prog-mode . symbol-overlay-mode)
(iedit-mode . turn-off-symbol-overlay)
(iedit-mode-end . turn-on-symbol-overlay))
:init (setq symbol-overlay-idle-time 0.1)
:config
;; Disable symbol highlighting while selecting
(defun turn-off-symbol-overlay (&rest _)
"Turn off symbol highlighting."
(interactive)
(symbol-overlay-mode -1))
(advice-add #'set-mark :after #'turn-off-symbol-overlay)
(defun turn-on-symbol-overlay (&rest _)
"Turn on symbol highlighting."
(interactive)
(when (derived-mode-p 'prog-mode)
(symbol-overlay-mode 1)))
(advice-add #'deactivate-mark :after #'turn-on-symbol-overlay))
;; Jump to things in Emacs tree-style
(use-package avy
:bind (("C-:" . avy-goto-char)
("C-'" . avy-goto-char-2)
("M-g f" . avy-goto-line)
("M-g w" . avy-goto-word-1)
("M-g e" . avy-goto-word-0))
:hook (after-init . avy-setup-default)
:config (setq avy-all-windows nil
avy-all-windows-alt t
avy-background t
avy-style 'pre))
(use-package mwim
:bind (([remap move-beginning-of-line] . mwim-beginning-of-code-or-line)
([remap move-end-of-line] . mwim-end-of-code-or-line)
:map prog-mode-map
("C-a" . mwim-beginning-of-code-or-line-or-comment)
("C-e" . mwim-end-of-code-or-line)))
;; Goto last change
(use-package goto-chg
:bind ("C-," . goto-last-change))
;; Record and jump to the last point in the buffer
(use-package goto-last-point
:diminish
:bind ("C-." . goto-last-point)
:hook (after-init . goto-last-point-mode))
;; Jump to definition
(use-package dumb-jump
:pretty-hydra
((:title "Dump Jump" :color blue :quit-key "q")
("Jump"
(("j" dumb-jump-go "Go")
("o" dumb-jump-go-other-window "Go other window")
("e" dumb-jump-go-prefer-external "Go external")
("x" dumb-jump-go-prefer-external-other-window "Go external other window"))
"Other"
(("i" dumb-jump-go-prompt "Prompt")
("l" dumb-jump-quick-look "Quick look")
("b" dumb-jump-back "Back"))))
:bind (("M-g o" . dumb-jump-go-other-window)
("M-g j" . dumb-jump-go)
("M-g i" . dumb-jump-go-prompt)
("M-g x" . dumb-jump-go-prefer-external)
("M-g z" . dumb-jump-go-prefer-external-other-window)
("C-M-j" . dumb-jump-hydra/body))
:init
(add-hook 'xref-backend-functions #'dumb-jump-xref-activate)
(setq dumb-jump-prefer-searcher 'rg
dumb-jump-selector 'ivy))
(use-package editorconfig
:diminish
:hook (after-init . editorconfig-mode))
;; Hideshow
(use-package hideshow
:diminish hs-minor-mode
:bind (:map hs-minor-mode-map
("C-`" . hs-toggle-hiding)))
;; Flexible text folding
(use-package origami
:pretty-hydra
((:title "Origami" :color amaranth :quit-key "q")
("Node"
((":" origami-recursively-toggle-node "toggle recursively")
("a" origami-toggle-all-nodes "toggle all")
("t" origami-toggle-node "toggle current")
("o" origami-show-only-node "only show current"))
"Actions"
(("u" origami-undo "undo")
("d" origami-redo "redo")
("r" origami-reset "reset"))))
:bind (:map origami-mode-map
("C-`" . origami-hydra/body))
:hook (prog-mode . origami-mode)
:init (setq origami-show-fold-header t)
:config (face-spec-reset-face 'origami-fold-header-face)
;; lsp-origami provides support for origami.el using language server protocol’s
;; textDocument/foldingRange functionality.
;; https://github.com/emacs-lsp/lsp-origami/
(use-package lsp-origami
:hook ((lsp-after-open . lsp-origami-try-enable))))
(provide 'init-iedit)
;;; init-iedit.el ends here
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