hamacs/ha-config.org

#+TITLE:  General Emacs Configuration
#+AUTHOR: Howard X. Abrams
#+DATE:   2020-09-10
#+FILETAGS: :emacs:

A literate programming file for configuring Emacs.

#+BEGIN_SRC emacs-lisp :exports none
  ;;; ha-config --- Emacs configuration. -*- lexical-binding: t; -*-
  ;;
  ;; © 2020-2022 Howard X. Abrams
  ;;   This work is licensed under a Creative Commons Attribution 4.0 International License.
  ;;   See http://creativecommons.org/licenses/by/4.0/
  ;;
  ;; Author: Howard X. Abrams <http://gitlab.com/howardabrams>
  ;; Maintainer: Howard X. Abrams
  ;; Created: September 10, 2020
  ;;
  ;; This file is not part of GNU Emacs.
  ;;
  ;; *NB:* Do not edit this file. Instead, edit the original literate file at:
  ;;          ~/other/hamacs/ha-config.org
  ;;       Using `find-file-at-point', and tangle the file to recreate this one .
  ;;
  ;;; Code:
#+END_SRC
* Basic Configuration
I hate a fat-finger that stop Emacs:
#+BEGIN_SRC emacs-lisp
  (setq confirm-kill-emacs 'yes-or-no-p)
#+END_SRC

New way to display line-numbers. I set mine to =relative= so that I can easily jump up and down by that value. Set this to =nil= to turn off, or =t= to be absolute.

#+BEGIN_SRC emacs-lisp
  (setq display-line-numbers t
        display-line-numbers-type 'relative)
#+END_SRC

As [[https://philjackson.github.io//emacs/backups/2022/01/31/keeping-backups-of-every-edited-file/][Phil Jackson]] mentioned, Emacs has a lot of file backup strategy, and either change the [[help:backup-directory-alist][backup-directory-alist]] to put individual file backups elsewhere, e.g.

#+BEGIN_SRC emacs-lisp
  (setq backup-directory-alist `(("." . ,(concat user-emacs-directory "backups"))))
#+END_SRC

Oh, and let’s see if I will use the =recentf= feature more:

#+BEGIN_SRC emacs-lisp
  (recentf-mode 1)
#+END_SRC

Or leave them in the current directory, but create an alias to =ls= to normally not see them, e.g.

#+BEGIN_SRC sh
  alias ls="ls --color=auto --hide='*~'"
#+END_SRC

I'm leaving them side-by-side, but I am keeping some extra copies:
#+BEGIN_SRC emacs-lisp
  (setq create-lockfiles nil   ; Having .# files around ain't helpful
        auto-save-default t
        delete-old-versions t
        kept-new-versions 6
        kept-old-versions 2
        version-control t)
#+END_SRC
The [[help:version-control][version-control]] variable affect backups (not some sort of global VC setting), this makes numeric backups.

I like the rendering to curved quotes using [[help:text-quoting-style][text-quoting-style]], because it improves the readability of documentation strings in the =∗Help∗= buffer and whatnot.
#+BEGIN_SRC emacs-lisp
(setq text-quoting-style 'curve)
#+END_SRC

Changes and settings I like introduced in Emacs 28:
#+BEGIN_SRC emacs-lisp
  (setq use-short-answers t
        describe-bindings-outline t
        completions-detailed t)
#+END_SRC

As [[https://tecosaur.github.io/emacs-config/config.html][tec wrote]], I want to use =~/.authsource.gpg= as I don’t want to accidentaly purge this file cleaning =~/.emacs.d=, and let's cache as much as possible, as my home machine is pretty safe, and my laptop is shutdown a lot. Also, as [[https://www.bytedude.com/gpg-in-emacs/][bytedude]] mentions, I need to se the =epa-pineentry-mode= to =loopback= to actually get a prompt for the password, instead of an error.

#+BEGIN_SRC emacs-lisp
  (use-package epa-file
    :config
    (defvar epa-pinentry-mode)
    (setq epa-file-select-keys nil
	  epa-pinentry-mode 'loopback
	  auth-sources '("~/.authinfo.gpg")
	  auth-source-cache-expiry nil))
#+END_SRC

More settings:

#+BEGIN_SRC emacs-lisp
  (setq truncate-string-ellipsis "…" ; Unicode ellispis are nicer than "..."
        debug-on-error t)
#+END_SRC

The venerable [[help:hippie-expand][hippie-expand]] function does a better job than the default, [[help:dabbrev-expand][dabbrev-expand]], so let’s swap it out (see this [[https://www.masteringemacs.org/article/text-expansion-hippie-expand][excellent essay]] by Mickey Petersen):
#+BEGIN_SRC emacs-lisp
  (global-set-key [remap dabbrev-expand] 'hippie-expand)
#+END_SRC
Details? Check out its [[help:hippie-expand-try-functions-list][list of expanders]].

What would be /really nice/ is to have it bound to ~TAB~ instead of the default ~M-/~. Normally, ~TAB~ re-indents the line, but I find that I usually want that feature when I’m in Evil’s =normal state= and hit the ~=~ key, so changing this sounds good. But why not /have both/?
#+BEGIN_SRC emacs-lisp
  (advice-add #'indent-for-tab-command :after #'hippie-expand)
#+END_SRC
Now while we’re typing along, we can hit the ~TAB~ key after partially typing a word to have it completed.

Save the file whenever I move away from Emacs (see [[https://irreal.org/blog/?p=10314][this essay]]):
#+BEGIN_SRC emacs-lisp
  (defun save-all-buffers ()
    "Saves all buffers, because, why not?"
    (interactive)
    (save-some-buffers t))

  (add-hook 'focus-out-hook 'save-all-buffers)
#+END_SRC

And some Mac-specific settings:
#+BEGIN_SRC emacs-lisp
  (when (ha-running-on-macos?)
    (setq mac-option-modifier 'meta
          mac-command-modifier 'super)
    (add-to-list 'default-frame-alist '(ns-transparent-titlebar . t))
    (add-to-list 'default-frame-alist '(ns-appearance . dark)))
#+END_SRC
* Support Packages
** Piper

Rewriting my shell scripts in Emacs Lisp uses my [[https://gitlab.com/howardabrams/emacs-piper][emacs-piper project]], and this code spills into my configuration code, so let's load it now:

#+BEGIN_SRC emacs-lisp
  (use-package piper
    :straight (:type git :protocol ssh :host gitlab :repo "howardabrams/emacs-piper")
    :commands piper shell-command-to-list    ; I use this function quite a bit
    :bind (:map evil-normal-state-map
           ("C-M-|" . piper)
           ("C-|" . piper-user-interface)))
#+END_SRC
** Yet Another Snippet System (YASnippets)
Using [[https://github.com/joaotavora/yasnippet][yasnippet]] to convert templates into text:

#+BEGIN_SRC emacs-lisp
  (use-package yasnippet
    :config
    (add-to-list 'yas-snippet-dirs (expand-file-name "snippets" user-emacs-directory))
    (yas-global-mode +1))
#+END_SRC
Check out [[http://joaotavora.github.io/yasnippet/][the documentation]] for writing them.

Seems the best [[https://github.com/hlissner/doom-snippets][collection of snippets]] is what Henrik Lissner has made for Doom (otherwise, we should use [[http://github.com/AndreaCrotti/yasnippet-snippets][yasnippet-snippets]] package):
#+BEGIN_SRC emacs-lisp
  (use-package doom-snippets
    :after yasnippet
    :straight (:type git :protocol ssh :host github :repo "doomemacs/snippets")
    :config
    (add-to-list 'yas-snippet-dirs (thread-last user-emacs-directory
                                                (expand-file-name "straight")
                                                (expand-file-name "repos")
                                                (expand-file-name "doom-snippets"))))
#+END_SRC
*Note:* Including his snippets also includes some [[https://github.com/hlissner/doom-snippets#snippets-api][helper functions]] and other features.
** Auto Insert Templates
The [[https://www.emacswiki.org/emacs/AutoInsertMode][auto-insert]] feature is a wee bit complicated. All I want is to associate a filename regular expression with a YASnippet template. I'm stealing some ideas from Henrik Lissner's [[https://github.com/hlissner/doom-emacs/blob/develop/modules/editor/file-templates/autoload.el][set-file-template!]] macro, but maybe simpler?
#+BEGIN_SRC emacs-lisp
(use-package autoinsert
  :init
  (setq auto-insert-directory (expand-file-name "templates" user-emacs-directory))
  ;; Don't want to be prompted before insertion:
  (setq auto-insert-query nil)

  (add-hook 'find-file-hook 'auto-insert)
  (auto-insert-mode t))
#+END_SRC
However, auto insertion requires entering data for particular fields, and for that Yasnippet is better, so in this case, we combine them:
#+BEGIN_SRC emacs-lisp
(defun ha-autoinsert-yas-expand()
  "Replace text in yasnippet template."
  (yas-expand-snippet (buffer-string) (point-min) (point-max)))
#+END_SRC

And since I'll be associating snippets with new files all over my configuration, let's make a helper function:
#+BEGIN_SRC emacs-lisp
  (defun ha-auto-insert-file (filename-re snippet-name)
    "Autofill file buffer matching FILENAME-RE regular expression.
    The contents inserted from the YAS SNIPPET-NAME."
    ;; The define-auto-insert takes a regular expression and an ACTION:
    ;; ACTION may also be a vector containing several successive single
    ;; actions as described above, e.g. ["header.insert" author-update].
    (define-auto-insert filename-re
      (vector snippet-name 'ha-autoinsert-yas-expand)))
#+END_SRC

As an example of its use, any Org files loaded in /this project/ should insert my config file:
#+BEGIN_SRC emacs-lisp
  (ha-auto-insert-file (rx "hamacs/" (one-or-more any) ".org" eol) "hamacs-config")
#+END_SRC
** Request System
The above code (and other stuff) needs the [[https://github.com/tkf/emacs-request][request]] package:
#+BEGIN_SRC emacs-lisp
  (use-package request
    :init
    (defvar ha-dad-joke nil "Holds the latest dad joke.")

    :config
    (defun ha-dad-joke ()
      "Display a random dad joke."
      (interactive)
      (message (ha--dad-joke)))

    (defun ha--dad-joke ()
      "Return string containing a dad joke from www.icanhazdadjoke.com."
      (setq ha-dad-joke nil)  ; Clear out old joke
      (ha--dad-joke-request)
      (ha--dad-joke-wait))

    (defun ha--dad-joke-wait ()
      (while (not ha-dad-joke)
        (sit-for 1))
      (unless ha-dad-joke
        (ha--dad-joke-wait))
      ha-dad-joke)

    (defun ha--dad-joke-request ()
      (request "https://icanhazdadjoke.com"
        :sync t
        :complete (cl-function
                   (lambda (&key data &allow-other-keys)
                     (setq ha-dad-joke data))))))
#+END_SRC
*** Dad Jokes!
The /critical part/ here, is the [[https://icanhazdadjoke.com/][Dad Joke]] function, which is just a =curl= call:
#+BEGIN_SRC sh
curl -sH "Accept: text/plain" https://icanhazdadjoke.com/
#+END_SRC
For this, I use the =request= package, which is /asynchronous/
#+BEGIN_SRC emacs-lisp
#+END_SRC

* Configuration Changes
** Initial Settings and UI
Let's turn off the menu and other things:
#+BEGIN_SRC emacs-lisp
(when (display-graphic-p)
  (tool-bar-mode -1)
  (scroll-bar-mode -1)
  (horizontal-scroll-bar-mode -1)
  (setq visible-bell 1))
#+END_SRC
I dislike forgetting to trim trailing white-space:

#+BEGIN_SRC emacs-lisp
(add-hook 'before-save-hook 'delete-trailing-whitespace)
#+END_SRC

I like being able to enable local variables in =.dir-local.el= files:
#+BEGIN_SRC emacs-lisp
(setq enable-local-variables t)
#+END_SRC
** Completing Read User Interface
After using Ivy, I am going the route of a =completing-read= interface that extends the original Emacs API, as opposed to implementing backend-engines or complete replacements.
*** Vertico
The [[https://github.com/minad/vertico][vertico]] package puts the completing read in a vertical format, and seems to fit the bill. It seems to be similar to [[https://github.com/raxod502/selectrum#vertico][Selectrum]].
#+BEGIN_SRC emacs-lisp
  (use-package vertico
    :config (vertico-mode))
#+END_SRC
My only issue with using Vertico with =find-file= is that I really like having the Return key insert the directory at point, and not open =dired=. Seems like this is addressed with this extension /installed with Vertico/:
#+BEGIN_SRC emacs-lisp
  (use-package vertico-directory
    :straight (el-patch :files ("~/.emacs.d/straight/repos/vertico/extensions/vertico-directory.el"))
    ;; More convenient directory navigation commands
    :bind (:map vertico-map
                ("RET" . vertico-directory-enter)
                ; ("DEL" . vertico-directory-delete-word)
                ("M-RET" . minibuffer-force-complete-and-exit)
                ("M-TAB" . minibuffer-complete))
    ;; Tidy shadowed file names
    :hook (rfn-eshadow-update-overlay . vertico-directory-tidy))
#+END_SRC
*** Hotfuzz
This fuzzy completion style is similar to the built-in =flex= style, but has a better scoring algorithm. Specifically, it is non-greedy and ranks completions that match at word; path component; or camelCase boundaries higher.

#+BEGIN_SRC emacs-lisp
  (use-package hotfuzz
    :config
    (setq completion-styles '(hotfuzz)
           completion-ignore-case t))
#+END_SRC
While it is very flexible at matching, you have to get the /order/ correct. For instance, ~alireg~ matches with [[help:align-regexp][align-regexp]], but ~regali~ does not.
*** Orderless
While the space can be use to separate words (acting a bit like a =.*= regular expression), the [[https://github.com/oantolin/orderless][orderless]] project allows those words to be in any order.
#+BEGIN_SRC emacs-lisp
  (use-package orderless
    :commands (orderless-filter)
    :custom
    (completion-styles '(orderless basic))
    (completion-ignore-case t)
    (completion-category-defaults nil)
    (completion-category-overrides '((file (styles partial-completion)))))
#+END_SRC
*Note:* Multiple files can be opened at once with =find-file= if you enter a wildcard. We may also give the =initials= completion style a try.
*** Fussy Filtering and Matching
The [[https://github.com/jojojames/fussy][fussy]] project is a fuzzy pattern matching extension for the normal [[help:completing-read][completing-read]] interface. By default, it uses [[https://github.com/lewang/flx][flx]], however, its goal is to allow multiple sorting and filtering algorithms to be used.

How does it compare? Once upon a time, I enjoyed typing ~plp~ for =package-list-packages=, and when I switched to [[https://github.com/oantolin/orderless][orderless]], I would need to put a space between the words. While I will continue to play with the different mechanism, I’ll combine =hotfuzz= and =orderless=.

#+BEGIN_SRC emacs-lisp
  (use-package fussy
    :straight (:host github :repo "jojojames/fussy")
    :config
    (push 'fussy completion-styles)
    (setq completion-category-defaults nil
          completion-category-overrides nil
          fussy-filter-fn 'fussy-filter-orderless-flex
          fussy-score-fn 'fussy-hotfuzz-score))
#+END_SRC
*** Savehist
Persist history over Emacs restarts using the built-in [[https://www.emacswiki.org/emacs/SaveHist][savehist]] project. Since both Vertico and Selectrum sorts by history position, this should make the choice /smarter/ with time.
#+BEGIN_SRC emacs-lisp
(use-package savehist
  :init
  (savehist-mode))
#+END_SRC
*** Marginalia
The [[https://github.com/minad/marginalia][marginalia]] package gives a preview of =M-x= functions with a one line description, extra information when selecting files, etc. Nice enhancement without learning any new keybindings.

#+BEGIN_SRC emacs-lisp
  ;; Enable richer annotations using the Marginalia package
  (use-package marginalia
    :init
    (setq marginalia-annotators-heavy t)
    :config
    (marginalia-mode))
#+END_SRC
* Key Bindings
To begin my binding changes, let's turn on [[https://github.com/justbur/emacs-which-key][which-key]]:
#+BEGIN_SRC emacs-lisp
(use-package which-key
  :init   (setq which-key-popup-type 'minibuffer)
  :config (which-key-mode))
#+END_SRC
Why would I ever quit Emacs with a simple keybinding? Let’s override it:
#+BEGIN_SRC emacs-lisp
  (global-set-key (kbd "s-q") 'bury-buffer)
#+END_SRC
Oh, and let’s not close the frame, but instead, the window:
#+BEGIN_SRC emacs-lisp
  (global-set-key (kbd "s-w") 'delete-window)
#+END_SRC
** Undo
I mean, I /always/ use ~C-/~ for [[help:undo][undo]] (and ~C-?~ for [[help:undo-redo][redo]]), but since I’m on the Mac quite a bit, I want to cover my bases.

Why use [[https://gitlab.com/ideasman42/emacs-undo-fu][undo-fu]] instead of the built-in undo functionality? Well, there isn’t much to the project (that’s a good thing), but It basically doesn’t /cycle/ around the redo, which annoying.

#+BEGIN_SRC emacs-lisp
(use-package undo-fu
  :config
  (global-set-key [remap undo] 'undo-fu-only-undo)
  (global-set-key [remap undo-redo] 'undo-fu-only-redo)
  (global-unset-key (kbd "s-z"))
  (global-set-key (kbd "s-z")   'undo-fu-only-undo)
  (global-set-key (kbd "s-S-z") 'undo-fu-only-redo))
#+END_SRC
** Evil-Specific Keybindings
Can we change Evil at this point? Some tips:
 - [[https://github.com/noctuid/evil-guide]]
 - [[https://nathantypanski.com/blog/2014-08-03-a-vim-like-emacs-config.html]]
 - [[https://stackoverflow.com/questions/25542097/emacs-evil-mode-how-to-change-insert-state-to-emacs-state-automatically][Evil insert state is really Emacs?]] Real answer to that is to set [[help:evil-disable-insert-state-bindings][evil-disable-insert-state-bindings]]

#+BEGIN_SRC emacs-lisp
  (use-package evil
    :init
    (setq evil-undo-system 'undo-fu
          evil-want-fine-undo t		; Be more like Emacs
          evil-disable-insert-state-bindings t
          evil-want-keybinding nil
          evil-want-integration t
          evil-escape-key-sequence "jk"
          evil-escape-unordered-key-sequence t)

    :config
    ;; Now that `evil-disable-insert-state-bindings' works to use Emacs
    ;; keybindings in Evil's insert mode, we no longer need this code:
    ;; (setq evil-insert-state-map (make-sparse-keymap))
    ;; (define-key evil-insert-state-map (kbd "<escape>") 'evil-normal-state)

    ;; In insert mode, type C-o to execute a single Evil command:
    (define-key evil-insert-state-map (kbd "C-o") 'evil-execute-in-normal-state)

    (evil-mode))
#+END_SRC

While I’m pretty good with the VIM keybindings, I would like to play around with the text objects and how it compares to others (including the surround), for instance:
  - ~diw~ :: deletes a word, but can be anywhere in it, while ~de~ deletes to the end of the word.
  - ~daw~ :: deletes a word, plus the surrounding space, but not punctuation.
  - ~xi,w~ :: changes a word that is snake or camel-cased, as in programming languages. The ~x~ can be ~c~ to change, ~d~ to delete, ~y~ to copy, etc.
  - ~xis~ :: changes a /sentence,/ and if ~i~ is ~a~, it gets rid of the surrounding whitespace as well. Probably ~das~ and ~cis~.
  - ~xip~ :: changes a /paragraph/.
  - Surrounding punctuation, like quotes, parenthesis, brackets, etc. Also work, so ~ci)~ changes all the parameters to a function call.

Using the key-chord project allows me to make Escape be on two key combo presses on both sides of my keyboard:
#+BEGIN_SRC emacs-lisp
(use-package key-chord
  :config
  (key-chord-mode t)
  (key-chord-define-global "fd" 'evil-normal-state)
  (key-chord-define-global "jk" 'evil-normal-state)
  (key-chord-define-global "JK" 'evil-normal-state))
#+END_SRC
** General Leader Key Sequences
The one thing that both Spacemacs and Doom taught me, is how much I like the /key sequences/ that begin with a leader key. In both of those systems, the key sequences begin in the /normal state/ with a space key. This means, while typing in /insert state/, I have to escape to /normal state/ and then hit the space.

I'm not trying an experiment where specially-placed function keys on my fancy ergodox keyboard can kick these off using [[https://github.com/noctuid/general.el][General Leader]] project. Essentially, I want a set of leader keys for Evil's /normal state/ as well as a global leader in all modes.

#+BEGIN_SRC emacs-lisp
  (use-package general
    :custom
    (general-use-package-emit-autoloads t)

    :config
    (general-evil-setup t)

    (general-create-definer ha-leader
      :states '(normal visual motion)
      :keymaps 'override
      :prefix "SPC"
      :non-normal-prefix "M-SPC"
      :global-prefix "<f13>")

    (general-create-definer ha-local-leader
      :states '(normal visual motion)
      :prefix "SPC m"
      :global-prefix "<f17>"
      :non-normal-prefix "S-SPC"))
#+END_SRC
*** Top-Level Operations
Let's try this general "space" prefix by defining some top-level operations, including hitting ~space~ twice to bring up the =M-x= collection of functions:
#+BEGIN_SRC emacs-lisp
  (ha-leader
    "SPC" '("M-x" . execute-extended-command)
    "."   '("repeat" . repeat)
    "!"   'shell-command
    "X"   'org-capture
    "L"   'org-store-link
    "RET" 'bookmark-jump
    "a"  '(:ignore t :which-key "apps")
    "o"  '(:ignore t :which-key "org/open")
    "o i" 'imenu
    "m"   '(:ignore t :which-key "mode")
    "u"   'universal-argument)
#+END_SRC
And ways to stop the system:
#+BEGIN_SRC emacs-lisp
  (ha-leader
     "q"  '(:ignore t :which-key "quit/session")
     "q b" '("bury buffer" . bury-buffer)
     "q w" '("close window" . delete-window)
     "q K" '("kill emacs (and dæmon)" . save-buffers-kill-emacs)
     "q q" '("quit emacs" . save-buffers-kill-terminal)
     "q Q" '("quit without saving" . evil-quit-all-with-error-code))
#+END_SRC
*** File Operations
Obviously, =find-file= is still my bread and butter, but I do like getting information about the file associated with the buffer. For instance, the file path:
#+BEGIN_SRC emacs-lisp
(defun ha-relative-filepath (filepath)
  "Return the FILEPATH without the HOME directory and typical filing locations.
The expectation is that this will return a filepath with the proejct name."
  (let* ((home-re (rx (literal (getenv "HOME")) "/"))
         (work-re (rx (regexp home-re)
                      (or "work" "other" "projects") ; Typical organization locations
                      "/"
                      (optional (or "4" "5" "xway") "/") ; Sub-organization locations
                      )))
    (cond
     ((string-match work-re filepath) (substring filepath (match-end 0)))
     ((string-match home-re filepath) (substring filepath (match-end 0)))
     (t filepath))))

(defun ha-yank-buffer-path (&optional root)
  "Copy the file path of the buffer relative to my 'work' directory, ROOT."
  (interactive)
  (if-let (filename (buffer-file-name (buffer-base-buffer)))
      (message "Copied path to clipboard: %s"
               (kill-new (abbreviate-file-name
                          (if root
                              (file-relative-name filename root)
                            (ha-relative-filepath filename)))))
    (error "Couldn't find filename in current buffer")))

(defun ha-yank-project-buffer-path (&optional root)
  "Copy the file path of the buffer relative to the file's project.
If ROOT is given, they copies the filepath relative to that."
  (interactive)
  (if-let (filename (buffer-file-name (buffer-base-buffer)))
      (message "Copied path to clipboard: %s"
               (kill-new
                (f-relative filename (or root (projectile-project-root filename)))))
    (error "Couldn't find filename in current buffer")))
#+END_SRC

Perhaps my OCD is out-of-control, but I really want to load a file in another window, but want to control which window.

#+BEGIN_SRC emacs-lisp
  (defmacro ha-create-find-file-window (winum)
    (let ((func-name (intern (format "ha-find-file-window-%s" winum)))
          (call-func (intern (format "winum-select-window-%s" winum))))
      `(defun ,func-name ()
         "Call `find-file' in the particular `winum' window."
         (interactive)
         (,call-func)
         (call-interactively 'find-file))))

  (dolist (winum (number-sequence 1 9))
    (ha-create-find-file-window winum))
#+END_SRC

With these helper functions in place, I can create a leader collection for file-related functions:
#+BEGIN_SRC emacs-lisp
  (ha-leader
     "f"  '(:ignore t :which-key "files")
     "f f" '("load" . find-file)
     "f F" '("load new window" . find-file-other-window)
     "f s" '("save" . save-buffer)
     "f S" '("save as" . write-buffer)
     "f SPC" '("project" . projectile-find-file)
     "f r" '("recent" . recentf-open-files)
     "f c" '("copy" . copy-file)
     "f R" '("rename" . rename-file)
     "f D" '("delete" . delete-file)
     "f y" '("yank path" . ha-yank-buffer-path)
     "f Y" '("yank path from project" . ha-yank-project-buffer-path)
     "f d" '("dired" . dired)
     "f 1" '("load win-1" . ha-find-file-window-1)
     "f 2" '("load win-2" . ha-find-file-window-2)
     "f 3" '("load win-3" . ha-find-file-window-3)
     "f 4" '("load win-4" . ha-find-file-window-4)
     "f 5" '("load win-5" . ha-find-file-window-5)
     "f 6" '("load win-6" . ha-find-file-window-6)
     "f 7" '("load win-7" . ha-find-file-window-7)
     "f 8" '("load win-8" . ha-find-file-window-8)
     "f 9" '("load win-9" . ha-find-file-window-9))
#+END_SRC
*** Buffer Operations
This section groups buffer-related operations under the "SPC b" sequence.

Putting the entire visible contents of the buffer on the clipboard is often useful:
#+BEGIN_SRC emacs-lisp
(defun ha-yank-buffer-contents ()
  "Copy narrowed contents of the buffer to the clipboard."
  (interactive)
  (kill-new (buffer-substring-no-properties
             (point-min) (point-max))))
#+END_SRC
And the collection of useful operations:
#+BEGIN_SRC emacs-lisp
(ha-leader
   "b"  '(:ignore t :which-key "buffers")
   "b B" '("switch" . persp-switch-to-buffer)
   "b o" '("switch" . switch-to-buffer-other-window)
   "b O" '("other" . projectile-switch-buffer-to-other-window)
   "b i" '("ibuffer" . ibuffer)
   "b I" '("ibuffer" . ibuffer-other-window)
   "b k" '("persp remove" . persp-remove-buffer)
   "b N" '("new" . evil-buffer-new)
   "b d" '("delete" . persp-kill-buffer*)
   "b r" '("revert" . revert-buffer)
   "b s" '("save" . save-buffer)
   "b S" '("save all" . evil-write-all)
   "b n" '("next" . next-buffer)
   "b p" '("previous" . previous-buffer)
   "b y" '("copy contents" . ha-yank-buffer-contents)
   "b z" '("bury" . bury-buffer)
   "b Z" '("unbury" . unbury-buffer)

   ;; And double up on the bookmarks:
   "b m" '("set bookmark" . bookmark-set)
   "b M" '("delete mark" . bookmark-delete))
#+END_SRC
*** Toggle Switches
The goal here is toggle switches and other miscellaneous settings.
#+BEGIN_SRC emacs-lisp
  (ha-leader
     "t"   '(:ignore t :which-key "toggles")
     "t a" '("abbrev"         . abbrev-mode)
     "t d" '("debug"          . toggle-debug-on-error)
     "t f" '("auto-fill"      . auto-fill-mode)
     "t l" '("line numbers"   . display-line-numbers-mode)
     "t t" '("truncate"       . toggle-truncate-lines)
     "t v" '("visual"         . visual-line-mode)
     "t w" '("whitespace"     . whitespace-mode))
#+END_SRC
**** Line Numbers
Really? We can't automatically toggle between relative and absolute line numbers?
#+BEGIN_SRC emacs-lisp
  (defun ha-toggle-relative-line-numbers ()
    (interactive)
    (if (eq display-line-numbers 'relative)
        (setq display-line-numbers t)
      (setq display-line-numbers 'relative)))
#+END_SRC
Add it to the toggle menu:
#+BEGIN_SRC emacs-lisp
  (ha-leader
     "t r" '("relative lines" . ha-toggle-relative-line-numbers))
#+END_SRC
**** Narrowing
I like the focus the [[info:emacs#Narrowing][Narrowing features]] offer, but what a /dwim/ aspect:
#+BEGIN_SRC emacs-lisp
  (defun ha-narrow-dwim ()
    "Narrow to region or org-tree or widen if already narrowed."
    (interactive)
    (cond
     ((buffer-narrowed-p) (widen))
     ((region-active-p)  (narrow-to-region (region-beginning) (region-end)))
     ((and (fboundp 'logos-focus-mode)
           (seq-contains local-minor-modes 'logos-focus-mode 'eq))
      (logos-narrow-dwim))
     ((eq major-mode 'org-mode) (org-narrow-to-subtree))
     (t  (narrow-to-defun))))
#+END_SRC
And put it on the toggle menu:
#+BEGIN_SRC emacs-lisp
    (ha-leader "t n" '("narrow" . ha-narrow-dwim))
#+END_SRC
*** Window Operations
While it comes with Emacs, I use [[https://www.emacswiki.org/emacs/WinnerMode][winner-mode]] to undo window-related changes:
#+BEGIN_SRC emacs-lisp
(use-package winner
  :custom
  (winner-dont-bind-my-keys t)
  :config
  (winner-mode +1))
#+END_SRC
Use the [[https://github.com/abo-abo/ace-window][ace-window]] project to jump to any window you see:
#+BEGIN_SRC emacs-lisp
(use-package ace-window)
#+END_SRC
This package, bound to ~SPC w w~, also allows operations specified before choosing the window:
  - ~x~ - delete window
  - ~m~ - swap windows
  - ~M~ - move window
  - ~c~ - copy window
  - ~j~ - select buffer
  - ~n~ - select the previous window
  - ~u~ - select buffer in the other window
  - ~c~ - split window fairly, either vertically or horizontally
  - ~v~ - split window vertically
  - ~b~ - split window horizontally
  - ~o~ - maximize current window
  - ~?~ - show these command bindings
Keep in mind, these shortcuts only work with lots of windows open. For instance, ~SPC w w x 3~ closes the "3" window.

To jump to a window even quicker, use the [[https://github.com/deb0ch/emacs-winum][winum package]]:
#+BEGIN_SRC emacs-lisp
(use-package winum
  :config
  (winum-mode +1))
#+END_SRC
And when creating new windows, why isn't the new window selected?
#+BEGIN_SRC emacs-lisp
  (defun jump-to-new-window (&rest _arg)
    "Advice function to jump to newly spawned window."
    (other-window 1))

  (dolist (command '(split-window-below split-window-right
                     evil-window-split evil-window-vsplit))
    (advice-add command :after #'jump-to-new-window))
#+END_SRC
This is nice since the window numbers are always present on a Doom modeline, however, they order the window numbers /differently/ than =ace-window=. Let's see which I end up liking better.

The ~0~ key/window should be always associated with a project-specific tree window:
#+BEGIN_SRC emacs-lisp
(add-to-list 'winum-assign-functions
             (lambda ()
               (when (string-match-p (buffer-name) ".*\\*NeoTree\\*.*") 10)))
#+END_SRC

Let's try this out with a Hydra since some commands (enlarge window), I want to repeatedly call. It also allows me to organize the helper text.
#+BEGIN_SRC emacs-lisp
  (use-package hydra
    :config
    (defhydra hydra-window-resize (:color blue :hint nil) "
  _w_: select _n_: new      _^_: taller (t)  _z_: Swap  _+_: text larger
  _c_: cycle  _d_: delete   _V_: shorter (T) _u_: undo  _-_: text smaller
  _j_: go up  _=_: balance  _>_: wider       _U_: undo+ _F_: font larger
  _k_: down   _m_: maximize _<_: narrower    _r_: redo  _f_: font smaller
  _h_: left   _s_: h-split  _e_: balanced    _R_: redo+ _0_: toggle neotree
  _l_: right  _v_: v-split  _o_: choose by number (also 1-9)
  "
      ("w" ace-window)
      ("c" other-window)
      ("=" balance-windows)
      ("m" delete-other-windows)
      ("d" delete-window)
      ("D" ace-delete-window)

      ("z" ace-window-swap)
      ("u" winner-undo)
      ("U" winner-undo :color pink)
      ("C-r" winner-redo)
      ("r" winner-redo)
      ("R" winner-redo :color pink)

      ("n" evil-window-new)
      ("j" evil-window-up)
      ("k" evil-window-down)
      ("h" evil-window-left)
      ("l" evil-window-right)
      ("o" other-window)

      ("s" evil-window-split)
      ("v" evil-window-vsplit)

      ("F" font-size-increase :color pink)
      ("f" font-size-decrease :color pink)
      ("+" text-scale-increase :color pink)
      ("=" text-scale-increase :color pink)
      ("-" text-scale-decrease :color pink)
      ("^" evil-window-increase-height :color pink)
      ("V" evil-window-decrease-height :color pink)
      ("t" evil-window-increase-height :color pink)
      ("T" evil-window-decrease-height :color pink)
      (">" evil-window-increase-width :color pink)
      ("<" evil-window-decrease-width :color pink)
      ("e" balance-windows)

      ("o" winum-select-window-by-number)
      ("1" winum-select-window-1)
      ("2" winum-select-window-2)
      ("3" winum-select-window-3)
      ("4" winum-select-window-4)
      ("5" winum-select-window-5)
      ("6" winum-select-window-6)
      ("7" winum-select-window-7)
      ("8" winum-select-window-8)
      ("9" winum-select-window-9)
      ("0" neotree-toggle)

      ;; Extra bindings:
      ("t" evil-window-increase-height :color pink)
      ("T" evil-window-decrease-height :color pink)
      ("." evil-window-increase-width :color pink)
      ("," evil-window-decrease-width :color pink)
      ("q" nil :color blue)))

  (ha-leader "w" '("windows" . hydra-window-resize/body))
#+END_SRC
*** Search Operations
Ways to search for information goes under the ~s~ key. This primarily depends on the [[https://github.com/dajva/rg.el][rg]] package, which builds on the internal =grep= system, and creates a =*rg*= window with =compilation= mode, so ~C-j~ and ~C-k~ will move and show the results by loading those files.

#+BEGIN_SRC emacs-lisp
  (use-package rg
    :init                 		; I sometimes call `grep`:
    ; (grep-apply-setting 'grep-command "rg -n -H --no-heading -e ")

    :config
    (rg-enable-default-bindings (kbd "M-R"))

    (ha-leader
       "s"  '(:ignore t :which-key "search")
       "s q" '("close" . ha-rg-close-results-buffer)
       "s r" '("dwim" . rg-dwim)
       "s s" '("search" . rg)
       "s S" '("literal" . rg-literal)
       "s p" '("project" . rg-project) ; or projectile-ripgrep
       "s d" '("directory" . rg-dwim-project-dir)
       "s f" '("file only" . rg-dwim-current-file)
       "s j" '("next results" . ha-rg-go-next-results)
       "s k" '("prev results" . ha-rg-go-previous-results)
       "s b" '("results buffer" . ha-rg-go-results-buffer))

    (defun ha-rg-close-results-buffer ()
      "Close to the `*rg*' buffer that `rg' creates."
      (interactive)
      (kill-buffer "*rg*"))

    (defun ha-rg-go-results-buffer ()
      "Pop to the `*rg*' buffer that `rg' creates."
      (interactive)
      (pop-to-buffer "*rg*"))

    (defun ha-rg-go-next-results ()
      "Bring the next file results into view."
      (interactive)
      (ha-rg-go-results-buffer)
      (next-error-no-select)
      (compile-goto-error))

    (defun ha-rg-go-previous-results ()
      "Bring the previous file results into view."
      (interactive)
      (ha-rg-go-results-buffer)
      (previous-error-no-select)
      (compile-goto-error)))
#+END_SRC

The [[https://github.com/mhayashi1120/Emacs-wgrep][wgrep package]] integrates with ripgrep. Typically, you can just his ~i~ to automatically go into =wgrep-mode= and edit away, however, I typically want to edit everything at the same time, so I have a toggle that should work as well:

#+BEGIN_SRC emacs-lisp
  (use-package wgrep
    :after rg
    :commands wgrep-rg-setup
    :hook (rg-mode-hook . wgrep-rg-setup)
    :config
      (ha-leader
       :keymaps 'rg-mode-map  ; Actually, just `i` works!
       "s w" '("wgrep-mode" . wgrep-change-to-wgrep-mode)
       "t w" '("wgrep-mode" . wgrep-change-to-wgrep-mode)))
#+END_SRC
*** Text Operations
Stealing much of this from Spacemacs.
#+BEGIN_SRC emacs-lisp
  (ha-leader
     "x"  '(:ignore t :which-key "text")
     "x a" '("align"            . align-regexp)
     "x q" '("fill paragraph"   . fill-paragraph)
     "x p" '("unfill paragraph" . unfill-paragraph))
#+END_SRC
Unfilling a paragraph joins all the lines in a paragraph into a single line. Taken [[http://www.emacswiki.org/UnfillParagraph][from here]] ... I use this all the time:

#+BEGIN_SRC emacs-lisp
(defun unfill-paragraph ()
  "Convert a multi-line paragraph into a single line of text."
  (interactive)
  (let ((fill-column (point-max)))
    (fill-paragraph nil)))
#+END_SRC
*** Help Operations
While the ~C-h~ is easy enough, I am now in the habit of typing ~SPC h~ instead.
Sure, I believe I should have grabbed /all/ the help functions:
#+BEGIN_SRC emacs-lisp :tangle no
  (ha-leader "h" `("help" . ,(lookup-key global-map (kbd "C-h"))))
#+END_SRC
Or simply connect the =help-map= (not that we wants it /value/):
#+BEGIN_SRC emacs-lisp :tangle no
  (ha-leader "'" `("help" . ,help-map))
#+END_SRC

Since I decided to tweak the help menu, so I craft my own:
#+BEGIN_SRC emacs-lisp
  (ha-leader
    "h"  '(:ignore t :which-key "help")
    "h a" '("apropos" . apropos-command)
    "h c" '("elisp cheatsheet" . shortdoc-display-group)
    "h e" '("errors" . view-echo-area-messages)
    "h E" '("emacs-lisp" . (lambda () (interactive) (info "elisp")))
    "h f" '("function" . describe-function)
    "h F" '("font" . describe-font)
    "h =" '("face" . describe-face)
    "h k" '("key binding" . describe-key)
    "h K" '("key map" . describe-keymap)
    "h m" '("mode" . describe-mode)
    "h p" '("package" . describe-package)
    "h s" '("symbol" . info-lookup-symbol)
    "h v" '("variable" . describe-variable)
    "h i" '("info" . info)
    "h I" '("info manual" . info-display-manual)
    "h j" '("info jump" . info-apropos))
#+END_SRC

Remember these keys in the *Help* buffer:
  - ~s~ :: view source of the function
  - ~i~ :: view info manual of the function

Let's make Info behave a little more VI-like:
#+BEGIN_SRC emacs-lisp
  (use-package info
    :straight (:type built-in)
    :general
    (:states 'normal :keymaps 'Info-mode-map
             "B" 'Info-bookmark-jump
             "Y" 'org-store-link
             "H" 'Info-history-back
             "L" 'Info-history-forward
             "u" 'Info-up
             "U" 'Info-directory
             "T" 'Info-top-node
             "p" 'Info-backward-node
             "n" 'Info-forward-node))    ; Old habit die hard
#+END_SRC
*** Consult
The [[https://github.com/minad/consult][consult project]] aims to use the libraries like [[*Vertico][Vertico]] to enhance specific, built-in, Emacs functions. I particularly appreciate the feature that when selecting an element in the minibuffer, it displays what you are looking at… for instance, it previews a buffer before choosing it. Unlike /Vertico/ and /Orderless/, you need to bind keys to its special functions (or rebind existing keys that do something similar).
#+BEGIN_SRC emacs-lisp
  (use-package consult
    :after general
    ;; Enable automatic preview at point in the *Completions* buffer. This is
    ;; relevant when you use the default completion UI.
    :hook (completion-list-mode . consult-preview-at-point-mode)

    :init
    ;; Use Consult to select xref locations with preview
    (setq xref-show-xrefs-function #'consult-xref
          xref-show-definitions-function #'consult-xref)

    (ha-leader
      "RET" '("bookmark" . consult-bookmark)
      "o i" '("imenu" . consult-imenu)
      "x y" '("preview yank" . consult-yank-pop))

    :bind ("s-v" . consult-yank-pop)

    :general
    (:states 'normal
             "gp" 'consult-yank-pop
             "gs" 'consult-line))
#+END_SRC
*** Consult for Projects
One of the reasons that Consult hasn’t been too important to me, is that I often narrow my searching based on projectile. So let’s see what the [[https://gitlab.com/OlMon/consult-projectile][consult-projectile]] can offer.
#+BEGIN_SRC emacs-lisp
  (use-package consult-projectile
    :after consult general
    :straight (consult-projectile :type git :host gitlab :repo "OlMon/consult-projectile" :branch "master")
    :config
    (ha-leader
      "p ." '("switch to..." . consult-projectile)
      "b b" '("switch buffer" . consult-projectile-switch-to-buffer)
      "p p" '("switch project" . consult-projectile-switch-project)
      "p f" '("find file" . consult-projectile-find-file)
      "p r" '("find recent file" . consult-projectile-recentf)))

#+END_SRC
The advantage of [[help:persp-switch-to-buffer][persp-switch-to-buffer]] over =consult-projectile-switch-to-buffer= is that is shows non-file buffers.
*** Embark
The [[https://github.com/oantolin/embark/][embark]] project offers /actions/ on /targets/, however, I'm primarily thinking of acting on selected items in the minibuffer, however, they actually act anywhere. Consequently, I need an easy-to-use keybinding that doesn't conflict. Hey, that is what the Super key is for, right?
#+BEGIN_SRC emacs-lisp
  (use-package embark
    :bind
    (("s-;" . embark-act)		; Work in minibuffer and elsewhere
     ("s-/" . embark-dwim))

    :init
    ;; Optionally replace the key help with a completing-read interface
    (setq prefix-help-command #'embark-prefix-help-command)

    :config
    (ha-leader "h K" '("keybindings" . embark-bindings)))
#+END_SRC

According to [[https://elpa.gnu.org/packages/embark-consult.html#orgc76b5de][this essay]], Embark cooperates well with the [[https://github.com/minad/marginalia][Marginalia]] and [[https://github.com/minad/consult][Consult]] packages. Neither of those packages is a dependency of Embark, but Embark supplies a hook for Consult where Consult previews can be done from Embark Collect buffers:

#+BEGIN_SRC emacs-lisp
(use-package embark-consult
  :after (embark consult)
  :demand t ; only necessary if you have the hook below
  ;; if you want to have consult previews as you move around an
  ;; auto-updating embark collect buffer
  :hook
  (embark-collect-mode . consult-preview-at-point-mode))
#+END_SRC

According to the [[https://elpa.gnu.org/packages/embark-consult.html][Embark-Consult page]]:
#+begin_quote
Users of the popular [[https://github.com/justbur/emacs-which-key][which-key]] package may prefer to use the =embark-which-key-indicator= from the [[https://github.com/oantolin/embark/wiki/Additional-Configuration#use-which-key-like-a-key-menu-prompt][Embark wiki]]. Just copy its definition from the wiki into your configuration and customize the =embark-indicators= user option to exclude the mixed and verbose indicators and to include =embark-which-key-indicator=.
#+end_quote
In other words, typing ~s-;~ to call Embark, specifies the options in a buffer, but the following code puts them in a smaller configuration directly above the selections.

#+BEGIN_SRC emacs-lisp
  (defun embark-which-key-indicator ()
    "An embark indicator that displays keymaps using which-key.
  The which-key help message will show the type and value of the
  current target followed by an ellipsis if there are further
  targets."
    (lambda (&optional keymap targets prefix)
      (if (null keymap)
          (which-key--hide-popup-ignore-command)
        (which-key--show-keymap
         (if (eq (plist-get (car targets) :type) 'embark-become)
             "Become"
           (format "Act on %s '%s'%s"
                   (plist-get (car targets) :type)
                   (embark--truncate-target (plist-get (car targets) :target))
                   (if (cdr targets) "…" "")))
         (if prefix
             (pcase (lookup-key keymap prefix 'accept-default)
               ((and (pred keymapp) km) km)
               (_ (key-binding prefix 'accept-default)))
           keymap)
         nil nil t (lambda (binding)
                     (not (string-suffix-p "-argument" (cdr binding))))))))

  (setq embark-indicators
        '(embark-which-key-indicator
          embark-highlight-indicator
          embark-isearch-highlight-indicator))

  (defun embark-hide-which-key-indicator (fn &rest args)
    "Hide the which-key indicator immediately when using the completing-read prompter."
    (which-key--hide-popup-ignore-command)
    (let ((embark-indicators
           (remq #'embark-which-key-indicator embark-indicators)))
      (apply fn args)))

  (advice-add #'embark-completing-read-prompter
              :around #'embark-hide-which-key-indicator)
#+END_SRC
** Evil Extensions
*** Evil Exchange
I often use the Emacs commands, ~M-t~ and whatnot to exchange words and whatnot, but this requires a drop out of normal state mode. The [[https://github.com/Dewdrops/evil-exchange][evil-exchange]] project attempts to do something similar, but in a VI-way.
#+BEGIN_SRC emacs-lisp
  (use-package evil-exchange
    ;; While I normally just use `link-hint', the gx keybinding is used by evil-exchange:
    :general (:states 'normal "gz" 'browse-url-at-point)

    :config (evil-exchange-install))
#+END_SRC

Let’s explain how this works as the documentation assumes some previous knowledge. If you had a sentence:

       The ball was red and the boy was blue.

Move the point to the word, /red/, and type ~g x i w~ (anywhere since we are using the inner text object). Next, jump to the word /blue/, and type the sequence, ~g x i w~ again, and you have:

       The ball was blue and the boy was red.

The idea is that you can exchange anything. The ~g x~ marks something (like what we would normally do in /visual mode/), and then by marking something else with a ~g x~ sequence, it swaps them.
*** Evil Commentary
The [[https://github.com/linktohack/evil-commentary][evil-commentary]] is a VI-like way of commenting text. Yeah, I typically type ~M-;~ to call Emacs’ originally functionality, but in this case, ~g c c~ comments out a line(s), and ~g c~ takes text objects and whatnot. For instance, ~g c $~ comments to the end of the line.

#+BEGIN_SRC emacs-lisp
  (use-package evil-commentary
    :config (evil-commentary-mode))
#+END_SRC
*** Evil Collection
Dropping into Emacs state is better than pure Evil state for applications, however, [[https://github.com/emacs-evil/evil-collection][the evil-collection package]] creates a hybrid between the two, that I like.

#+BEGIN_SRC emacs-lisp
  (use-package evil-collection
    :after evil
    :config
    (evil-collection-init))
#+END_SRC

Do I want to specify the list of modes to change for =evil-collection-init=, e.g.
#+BEGIN_SRC emacs-lisp :tangle no :eval no
'(eww magit dired notmuch term wdired)
#+END_SRC
*** Evil Owl
Not sure what is in a register? Have it show you when you hit ~”~ or ~@~ with [[https://github.com/mamapanda/evil-owl][evil-owl]]:
#+BEGIN_SRC emacs-lisp
  (use-package evil-owl
    :config
    (setq evil-owl-display-method 'posframe
          evil-owl-extra-posframe-args '(:width 50 :height 20 :background-color "#444")
          evil-owl-max-string-length 50)
    (evil-owl-mode))
#+END_SRC
*** Evil Snipe
Doom introduced me to [[https://github.com/hlissner/evil-snipe][evil-snipe]] which is similar to =f= and =t=, but does two characters, and can, when configured, search more than the current line.  My issue is that [[Evil Surround]] uses the same keybindings.
#+BEGIN_SRC emacs-lisp
  (use-package evil-snipe
    :after evil
    :init
    (setq evil-snipe-scope 'visible)

    :general
    (:states '(normal motion operator visual)
             "s" 'evil-snipe-s
             "S" 'evil-snipe-S)
    :config
    (evil-snipe-mode +1))
#+END_SRC
It highlights all potential matches, use ~;~ to skip to the next match, and ~,~ to jump back.
*** Evil Surround
I like both [[https://github.com/emacs-evil/evil-surround][evil-surround]] and Henrik's [[https://github.com/hlissner/evil-snipe][evil-snipe]], however, they both start with ~s~, and conflict, and getting them to work together means I have to remember when does ~s~ call sniper and when it calls surround. As an original Emacs person, I am not bound by that key history, but I do need them consistent, so I’m choosing the ~s~ to be /surround/.

#+BEGIN_SRC emacs-lisp :tangle no
  (use-package evil-surround
    :after evil-snipe
    :config
    (push '(?\" . ("“" . "”")) evil-surround-pairs-alist)
    (push '(?\' . ("‘" . "’")) evil-surround-pairs-alist)
    (push '(?\` . ("`" . "'")) evil-surround-pairs-alist)
    (push '(?b . ("*" . "*")) evil-surround-pairs-alist)
    (push '(?* . ("*" . "*")) evil-surround-pairs-alist)
    (push '(?i . ("/" . "/")) evil-surround-pairs-alist)
    (push '(?/ . ("/" . "/")) evil-surround-pairs-alist)
    (push '(?= . ("=" . "=")) evil-surround-pairs-alist)
    (push '(?~ . ("~" . "~")) evil-surround-pairs-alist)

    :general
    (:states 'operator :keymaps 'evil-surround-mode-map
             "z" 'evil-surround-edit
             "Z" 'evil-Surround-edit)

    :hook (text-mode . evil-surround-mode))  ; Don't globally use it on Magit, et. al
#+END_SRC
Notes:
  - ~cz'"~ :: to convert surrounding single quote string to double quotes.
  - ~dz"~ :: to delete the surrounding double quotes.
  - ~yze"~ :: puts single quotes around the next word.
  - ~yziw'~ :: puts single quotes around the word, no matter where the point is positioned.
  - ~yZ$<p>~ :: surrouds the line with HTML =<p>= tag (with extra carriage returns).
  - ~(~ :: puts spaces /inside/ the surrounding parens, but ~)~ doesn't. Same with ~[~ and ~]~.
** Additional Global Packages
*** Visual Replace with Visual Regular Expressions
I really appreciated the [[https://github.com/benma/visual-regexp.el][visual-regexp package]] to see what will be changed /before/ executing the replace.
#+BEGIN_SRC emacs-lisp
  (use-package visual-regexp
    :bind (("C-c r" . vr/replace)
           ("C-c q" . vr/query-replace))
    :general (:states 'normal "gR" '("replace" . vr/replace)))
#+END_SRC

*** Jump with Avy
While I grew up on =Control S=, I am liking the /mental model/ associated with the [[https://github.com/abo-abo/avy][avy project]] that allows a /jump/ among matches across all visible windows. I use the ~F18~ key on my keyboard that should be easy to use, but ~g o~ seems obvious.

#+BEGIN_SRC emacs-lisp
  (use-package avy
    :init
    (setq avy-all-windows t
          avy-single-candidate-jump t
          avy-orders-alist
          '((avy-goto-char . avy-order-closest)
            (avy-goto-word-0 . avy-order-closest)))

    :config (ha-leader "j" '("jump" . avy-goto-char-timer))

    :general
    (:states 'normal "go" 'avy-goto-char-timer)

    :bind ("<f18>" . avy-goto-char-timer))
#+END_SRC
*Note:* The links should be shorter near the point as opposed to starting from the top of the window.

Just realized that if you hit the following keys /before/ you select a target, you get a special action:
  - ~n~ :: copies the matching target word
*** Link Hint, the Link Jumper
I originally appreciated [[https://github.com/abo-abo/ace-link][ace-link]] to work with hyperlinks on Org, EWW and Info pages, however, the [[https://github.com/noctuid/link-hint.el][link-hint]] project works with more types of links:
#+BEGIN_SRC emacs-lisp
  (use-package link-hint
    :bind
    ("s-o" . link-hint-open-link)
    ("C-c l o" . link-hint-open-link)
    ("C-c l c" . link-hint-copy-link)
    :general
    (:states 'normal
             "gl" 'link-hint-open-link
             "gL" 'link-hint-copy-link)
    (:states 'normal :keymaps 'eww-mode-map
             "o" 'link-hint-open-link)
    (:states 'normal :keymaps 'Info-mode-map
             "o" 'link-hint-open-link))
#+END_SRC

*** Expand Region
Magnar Sveen's [[https://github.com/magnars/expand-region.el][expand-region]] project allows me to hit ~v~ repeatedly, having the selection grow by syntactical units.
#+BEGIN_SRC emacs-lisp
  (use-package expand-region
    :bind ("C-=" . er/expand-region)

    :general
    ;; Use escape to get out of visual mode, but hitting v again expands the selection.
    (:states 'visual "v" 'er/expand-region))
#+END_SRC
* Working Layout
While editing any file on disk is easy enough, I like the mental context switch associated with a full-screen window frame showing all the buffers of a /project task/ (often a direct link to a repository project, but not always).
** Projects
While I really don't /need/ all the features that [[https://github.com/bbatsov/projectile][projectile]] provides, it has all the features I do need, and is easy enough to install. I am referring to the fact that I /could/ use the built-in =project.el= system (see [[https://cestlaz.github.io/post/using-emacs-79-project/][this essay]] for details on what I mean as an alternative).

#+BEGIN_SRC emacs-lisp
  (use-package projectile
    :custom
    (projectile-sort-order 'recentf)
    (projectile-project-root-functions '(projectile-root-bottom-up))

    :config
    (ha-leader
     "p"  '(:ignore t :which-key "projects")
     "p W" '("initialize workspace" . ha-workspace-initialize)
     "p n" '("new project space" . ha-project-persp)
     "p !" '("run cmd in project root" . projectile-run-shell-command-in-root)
     "p &" '("async cmd in project root" . projectile-run-async-shell-command-in-root)
     "p a" '("add new project" . projectile-add-known-project)
     "p b" '("switch to project buffer" . projectile-switch-to-buffer)
     "p c" '("compile in project" . projectile-compile-project)
     "p C" '("repeat last command" . projectile-repeat-last-command)
     "p d" '("remove known project" . projectile-remove-known-project)
     "p e" '("edit project .dir-locals" . projectile-edit-dir-locals)
     "p f" '("find file in project" . projectile-find-file)
     "p g" '("configure project" . projectile-configure-project)
     "p i" '("invalidate project cache" . projectile-invalidate-cache)
     "p k" '("kill project buffers" . projectile-kill-buffers)
     "p o" '("find other file" . projectile-find-other-file)
     "p p" '("switch project" . projectile-switch-project)
     "p r" '("find recent project files" . projectile-recentf)
     "p R" '("run project" . projectile-run-project)
     "p S" '("save project files" . projectile-save-project-buffers)
     "p T" '("test project" . projectile-test-project)))
#+END_SRC
** Workspaces
A /workspace/ (at least to me) requires a quick jump to a collection of buffer windows organized around a project or task. For this, I'm basing my work on the [[https://github.com/nex3/perspective-el][perspective.el]] project.

I build a Hydra to dynamically list the current projects as well as select the project.
To do this, we need a way to generate a string of the perspectives in alphabetical order:

#+BEGIN_SRC emacs-lisp
  (defun ha--persp-label (num names)
    "Return string of numbered elements. NUM is the starting
  number and NAMES is a list of strings."
    (when names
      (concat
       (format "  %d: %s%s"    ; Shame that the following doesn't work:
               num             ; (propertize (number-to-string num) :foreground "#00a0")
               (car names)     ; Nor does surrounding the number with underbars.
               (if (equal (car names) (projectile-project-name)) "*" ""))
       (ha--persp-label (1+ num) (cdr names)))))

  (defun ha-persp-labels ()
    "Return a string of numbered elements from a list of names."
    (ha--persp-label 1 (sort (hash-table-keys (perspectives-hash)) 's-less?)))
#+END_SRC

Build the hydra as well as configure the =perspective= project.

#+BEGIN_SRC emacs-lisp
  (use-package perspective
    :custom
    (persp-modestring-short t)
    (persp-show-modestring t)

    :config
    (persp-mode +1)

    (defhydra hydra-workspace-leader (:color blue :hint nil) "
    Workspaces- %s(ha-persp-labels)
    _n_: new project  _r_: rename    _a_: add buffer     _l_: load worksp
    _]_: next worksp  _d_: delete    _b_: goto buffer    _s_: save worksp
    _[_: previous     _W_: init all  _k_: remove buffer  _`_: to last worksp "
      ("TAB" persp-switch-quick)
      ("RET" persp-switch)
      ("`" persp-switch-last)
      ("1" (persp-switch-by-number 1))
      ("2" (persp-switch-by-number 2))
      ("3" (persp-switch-by-number 3))
      ("4" (persp-switch-by-number 4))
      ("5" (persp-switch-by-number 5))
      ("6" (persp-switch-by-number 6))
      ("7" (persp-switch-by-number 7))
      ("8" (persp-switch-by-number 8))
      ("9" (persp-switch-by-number 9))
      ("0" (persp-switch-by-number 0))
      ("n" ha-project-persp)
      ("N" ha-new-persp)
      ("]" persp-next :color pink)
      ("[" persp-prev :color pink)
      ("r" persp-rename)
      ("d" persp-kill)
      ("W" ha-workspace-initialize)
      ("a" persp-add-buffer)
      ("b" persp-switch-to-buffer)
      ("k" persp-remove-buffer)
      ("K" persp-kill-buffer)
      ("s" persp-state-save)
      ("l" persp-state-load)
      ("w" ha-switch-to-special)  ; The most special perspective
      ("q" nil)
      ("C-g" nil))

    :bind ("C-<tab>" . hydra-workspace-leader/body))
#+END_SRC

I have no idea why this binding doesn’t work /within/ the =use-package= declaration, but oh well…
#+BEGIN_SRC emacs-lisp
(ha-leader "TAB" '("workspaces" . hydra-workspace-leader/body))
#+END_SRC

The /special/ perspective is a nice shortcut to the one I use the most:
#+BEGIN_SRC emacs-lisp
(defun ha-switch-to-special ()
  "Change to the projects perspective."
  (interactive)
  (persp-switch "projects"))
#+END_SRC
*** Predefined Workspaces
Let's describe a list of startup project workspaces. This way, I don't need the clutter of the recent state, but also get back to a state of mental normality.
Granted, this list is essentially a list of projects that I'm currently developing, so I expect this to change often.

#+BEGIN_SRC emacs-lisp
  (defvar ha-workspace-projects-personal nil "List of default projects with a name.")

  (add-to-list 'ha-workspace-projects-personal
               '("projects" "~/projects" ("breathe.org" "tasks.org")))
  (add-to-list 'ha-workspace-projects-personal
               '("personal" "~/personal" ("general.org")))
  (add-to-list 'ha-workspace-projects-personal
               '("technical" "~/technical" ("ansible.org")))
  (add-to-list 'ha-workspace-projects-personal
               '("hamacs" "~/other/hamacs" ("README.org" "ha-config.org")))
#+END_SRC

Given a list of information about project-workspaces, can we just create them all?

#+BEGIN_SRC emacs-lisp
  (defun ha-persp-exists? (name)
    "Return non-nill is a perspective of NAME has been created."
    (when (fboundp 'perspectives-hash)
      (seq-contains (hash-table-keys (perspectives-hash)) name)))

  (defun ha-workspace-initialize (&optional projects)
    "Precreate workspace projects from a PROJECTS list.
    Each entry in the list is a list containing:
      - name (as a string)
      - project root directory
      - a optional list of files to display"
    (interactive)
    (unless projects
      (setq projects ha-workspace-projects-personal))

    (dolist (project projects)
      (-let (((name root files) project))
        (unless (ha-persp-exists? name)
          (message "Creating workspace: %s (from %s)" name root)
          (ha-project-persp root name files)))))
#+END_SRC
Often, but not always, I want a perspective based on an actual Git repository, e.g. a project. Projectile keeps state of a "project" based on the current file loaded, so we /combine/ the two projects by first choosing from a list of /known projects/ and then creating a perspective based on the name. To pin the perspective to a project, we just need to load a file from it, e.g. Like a README or something.

#+BEGIN_SRC emacs-lisp
  (defun ha-project-persp (project &optional name files)
    "Create a new perspective, and then switch to the PROJECT using projectile.
  If NAME is not given, then figure it out based on the name of the
  PROJECT. If FILES aren't specified, then see if there is a
  README. Otherwise, pull up Dired."
    (interactive (list (projectile-completing-read "Project: " projectile-known-projects)))
    (when (f-directory-p project)
      (unless name
        (setq name (f-filename project)))
      (persp-switch name)

      ;; Unclear if the following is actually necessary.
      (ignore-errors
        (projectile-add-known-project root)
        (let ((projectile-switch-project-action nil))
          (projectile-switch-project-by-name root)))

      ;; To pin a project in projectile to the perspective, we need to load a file
      ;; from that project. The README will do, or at least, the dired of it.
      (let ((readme-org (f-join project "README.org"))
            (readme-md  (f-join project "README.md")))
        (cond
         (files                  (ha--project-show-files project files))
         ((f-exists? readme-org) (find-file readme-org))
         ((f-exists? readme-md)  (find-file readme-md))
         (t                      (dired project))))))
#+END_SRC
Displaying a few files? Well, when /starting/ I am only showing one or two files (maybe three), so we will split the window horizontally for each file.

#+BEGIN_SRC emacs-lisp
  (defun ha--project-show-files (root files)
    "Display a list of FILES in a project ROOT directory.
  Each file gets its own window (so don't make the list of files
  long)."
    (message "Loading files from %s ... %s" root files)
    (let* ((file (car files))
           (more (cdr files))
           (filename (format "%s/%s" root file)))
      (find-file filename)
      (when more
        (split-window-horizontally)
        (ha--project-show-files root more))))
#+END_SRC

The =persp-switch= allows me to select or create a new project, but what if we insisted on a new workspace?
#+BEGIN_SRC emacs-lisp
  (defun ha-new-persp (name)
    (interactive "sNew Workspace: ")
    (persp-switch name)
    (cond
     ((s-ends-with? "mail" name) (notmuch))
     ((s-starts-with? "twit" name) (twit))))
#+END_SRC
Once we create the new perspective workspace, if it matches a particular name, I pretty much know what function I would like to call.
* Applications
Can we really call these /applications/?
** Magit
Can not live without [[https://magit.vc/][Magit]], a Git porcelain for Emacs. I stole the bulk of this work from Doom Emacs.
#+BEGIN_SRC emacs-lisp
  (use-package magit
    :config
    ;; The following code re-instates my General Leader key in Magit.
    (general-unbind magit-mode-map "SPC")

    (ha-leader
      "g" '(:ignore t :which-key "git")
      "g /" '("Magit dispatch"             . magit-dispatch)
      "g ." '("Magit file dispatch"        . magit-file-dispatch)
      "g b" '("Magit switch branch"        . magit-branch-checkout)

      "g g" '("Magit status"               . magit-status)
      "g s" '("Magit status here"          . magit-status-here)
      "g D" '("Magit file delete"          . magit-file-delete)
      "g B" '("Magit blame"                . magit-blame-addition)
      "g C" '("Magit clone"                . magit-clone)
      "g F" '("Magit fetch"                . magit-fetch)
      "g L" '("Magit buffer log"           . magit-log-buffer-file)
      "g R" '("Revert file"                . vc-revert)
      "g S" '("Git stage file"             . magit-stage-file)
      "g U" '("Git unstage file"           . magit-unstage-file)

      "g f" '(:ignore t :which-key "find")
      "g f f"  '("Find file"               . magit-find-file)
      "g f g"  '("Find gitconfig file"     . magit-find-git-config-file)
      "g f c"  '("Find commit"             . magit-show-commit)

      "g l" '(:ignore t :which-key "list")
      "g l r" '("List repositories"        . magit-list-repositories)
      "g l s" '("List submodules"          . magit-list-submodules)

      "g o" '(:ignore t :which-key "open")

      "g c" '(:ignore t :which-key "create")
      "g c R" '("Initialize repo"          . magit-init)
      "g c C" '("Clone repo"               . magit-clone)
      "g c c" '("Commit"                   . magit-commit-create)
      "g c f" '("Fixup"                    . magit-commit-fixup)
      "g c b" '("Branch"                   . magit-branch-and-checkout)))
#+END_SRC

The [[https://github.com/emacsmirror/git-timemachine][git-timemachine]] project is cool:
#+BEGIN_SRC emacs-lisp
(use-package git-timemachine
  :config
  (ha-leader "g t" '("git timemachine" . git-timemachine)))
#+END_SRC
*** Gist
Using the [[https://github.com/emacsmirror/gist][gist package]] to write code snippets on [[https://gist.github.com/][Github]] seems like it can be useful, but I'm not sure how often.
   (use-package gist
     :config
     (ha-leader
       "g G" '(:ignore t :which-key "gists")
       "g l g" '("gists"          . gist-list)
       "g G l" '("list"           . gist-list)                     ; Lists your gists in a new buffer.
       "g G r" '("region"         . gist-region)                   ; Copies Gist URL into the kill ring.
       "g G R" '("private region" . gist-region-private)           ; Explicitly create a private gist.
       "g G b" '("buffer"         . gist-buffer)                   ; Copies Gist URL into the kill ring.
       "g G B" '("private buffer" . gist-buffer-private)           ; Explicitly create a private gist.
       "g c g" '("gist"           . gist-region-or-buffer)         ; Post either the current region, or buffer
       "g c G" '("private gist"   . gist-region-or-buffer-private))) ; create private gist from region or buffer

#+BEGIN_SRC emacs-lisp :tangle no
#+END_SRC

The gist project depends on the [[https://github.com/sigma/gh.el][gh library]]. There seems to be a problem with it.
#+BEGIN_SRC emacs-lisp :tangle no
  (use-package gh
    :straight (:type git :host :github :repo "sigma/gh.el"))
#+END_SRC

*** Forge
Let's extend Magit with [[https://github.com/magit/forge][Magit Forge]] for working with Github and Gitlab:
#+BEGIN_SRC emacs-lisp
  (use-package forge
    :after magit
    :config
    (ha-leader
      "g '"   '("Forge dispatch"           . forge-dispatch)
      "g f i" '("Find issue"               . forge-visit-issue)
      "g f p" '("Find pull request"        . forge-visit-pullreq)

      "g l i" '("List issues"              . forge-list-issues)
      "g l p" '("List pull requests"       . forge-list-pullreqs)
      "g l n" '("List notifications"       . forge-list-notifications)

      "g o r" '("Browse remote"            . forge-browse-remote)
      "g o c" '("Browse commit"            . forge-browse-commit)
      "g o i" '("Browse an issue"          . forge-browse-issue)
      "g o p" '("Browse a pull request"    . forge-browse-pullreq)
      "g o i" '("Browse issues"            . forge-browse-issues)
      "g o P" '("Browse pull requests"     . forge-browse-pullreqs)

      "g c i" '("Issue"                    . forge-create-issue)
      "g c p" '("Pull request"             . forge-create-pullreq)))
#+END_SRC

Every /so often/, pop over to the following URLs and generate a new token where the *Note* is =forge=, and then copy that into the [[file:~/.authinfo.gpg][~/.authinfo.gpg]]:
  - [[https://gitlab.com/-/profile/personal_access_tokens][Gitlab]]
  - [[https://github.com/settings/tokens][Github]]
 and make sure this works:

#+BEGIN_SRC emacs-lisp :tangle no :results replace
  (ghub-request "GET" "/user" nil
                :forge 'github
                :host "api.github.com"
                :username "howardabrams"
                :auth 'forge)
#+END_SRC
*** Pushing is Bad
Pushing directly to the upstream branch is /bad form/, as one should create a pull request, etc. To prevent an accidental push, we /double-check/ first:

#+BEGIN_SRC emacs-lisp
(define-advice magit-push-current-to-upstream (:before (args) query-yes-or-no)
  "Prompt for confirmation before permitting a push to upstream."
  (when-let ((branch (magit-get-current-branch)))
    (unless (yes-or-no-p (format "Push %s branch upstream to %s? "
                                 branch
                                 (or (magit-get-upstream-branch branch)
                                     (magit-get "branch" branch "remote"))))
      (user-error "Push to upstream aborted by user"))))
#+END_SRC
** Web Browsing
*** EWW
Web pages look pretty good with EWW, but I'm having difficulty getting it to render a web search from DuckDuck.

#+BEGIN_SRC emacs-lisp
  (use-package eww
    :init
    (setq browse-url-browser-function 'eww-browse-url
          browse-url-secondary-browser-function 'browse-url-default-browser
          eww-browse-url-new-window-is-tab nil
          shr-use-colors nil
          shr-use-fonts t     ; I go back and forth on this one
          ;; shr-discard-aria-hidden t
          shr-bullet "• "
          shr-inhibit-images nil  ; Gotta see the images?
          ;; shr-blocked-images '(svg)
          ;; shr-folding-mode nil
          url-privacy-level '(email))

    :config
    (ha-leader "a b" '("eww browser" . eww))

    :general
    (:states 'normal :keymaps 'eww-mode-map
             "B" 'eww-list-bookmarks
             "Y" 'eww-copy-page-url
             "H" 'eww-back-url
             "L" 'eww-forward-url
             "u" 'eww-top-url
             "p" 'eww-previous-url
             "n" 'eww-next-url
             "q" 'bury-buffer)
    (:states 'normal :keymaps 'eww-buffers-mode-map
             "q" 'bury-buffer))
#+END_SRC

This function allows Imenu to offer HTML headings in EWW buffers, which is especially helpful for navigating long, technical documents.

#+BEGIN_SRC emacs-lisp
  (use-package eww
    :config
    (defun unpackaged/imenu-eww-headings ()
      "Return alist of HTML headings in current EWW buffer for Imenu.
  Suitable for `imenu-create-index-function'."
      (let ((faces '(shr-h1 shr-h2 shr-h3 shr-h4 shr-h5 shr-h6 shr-heading)))
        (save-excursion
          (save-restriction
            (widen)
            (goto-char (point-min))
            (cl-loop for next-pos = (next-single-property-change (point) 'face)
                     while next-pos
                     do (goto-char next-pos)
                     for face = (get-text-property (point) 'face)
                     when (cl-typecase face
                            (list (cl-intersection face faces))
                            (symbol (member face faces)))
                     collect (cons (buffer-substring (point-at-bol) (point-at-eol)) (point))
                     and do (forward-line 1))))))
    :hook (eww-mode .
                    (lambda ()
                      (setq-local imenu-create-index-function #'unpackaged/imenu-eww-headings))))
#+END_SRC
*** Get Pocket
The [[https://github.com/alphapapa/pocket-reader.el][pocket-reader]] project connects to the [[https://getpocket.com/en/][Get Pocket]] service.

#+BEGIN_SRC emacs-lisp
  (use-package pocket-reader
    :init
    (setq org-web-tools-pandoc-sleep-time 1)
    :config
    (ha-leader "o p" '("get pocket" . pocket-reader))

    ;; Instead of jumping into Emacs mode to get the `pocket-mode-map',
    ;; we just add the keybindings to the normal mode that makes sense.
    :general
    (:states 'normal :keymaps 'pocket-reader-mode-map
             "RET" 'pocket-reader-open-url
             "TAB" 'pocket-reader-pop-to-url

             "*" 'pocket-reader-toggle-favorite
             "B" 'pocket-reader-open-in-external-browser
             "D" 'pocket-reader-delete
             "E" 'pocket-reader-excerpt-all
             "F" 'pocket-reader-show-unread-favorites
             "M" 'pocket-reader-mark-all
             "R" 'pocket-reader-random-item
             "S" 'tabulated-list-sort
             "a" 'pocket-reader-toggle-archived
             "c" 'pocket-reader-copy-url
             "d" 'pocket-reader
             "e" 'pocket-reader-excerpt
             "f" 'pocket-reader-toggle-favorite
             "l" 'pocket-reader-limit
             "m" 'pocket-reader-toggle-mark
             "o" 'pocket-reader-more
             "q" 'quit-window
             "s" 'pocket-reader-search
             "u" 'pocket-reader-unmark-all
             "t a" 'pocket-reader-add-tags
             "t r" 'pocket-reader-remove-tags
             "t s" 'pocket-reader-tag-search
             "t t" 'pocket-reader-set-tags

             "g s" 'pocket-reader-resort
             "g r" 'pocket-reader-refresh))
#+END_SRC

Use these special keywords when searching:

  - =:*=, =:favorite= Return only favorited items.
  - =:archive= Return only archived items.
  - =:unread= Return only unread items (default).
  - =:all= Return all items.
  - =:COUNT= Return at most /COUNT/ (a number) items. This limit persists until a new search is run.
  - =:t:TAG=, =t:TAG= Return items with /TAG/ (only one tag may be searched for, a limitation of the Pocket API).
** Neotree
I primarily use [[https://github.com/jaypei/emacs-neotree][Neotree]] when I am screen-sharing my Emacs session with collegues as it shows a /project/ like an IDE.
#+BEGIN_SRC emacs-lisp
  (use-package neotree
    :general ; evil-collection forgot a couple:
    (:states 'normal :keymaps 'neotree-mode-map
             "TAB" 'neotree-enter
             "SPC" 'neotree-quick-look
             "RET" 'neotree-enter
             "H" 'neotree-hidden-file-toggle))
#+END_SRC
** Annotations
Let's try [[https://github.com/bastibe/annotate.el][annotate-mode]], which allows you to drop "notes" and then move to them (yes, serious overlap with bookmarks, which we will return to).

#+BEGIN_SRC emacs-lisp
  (use-package annotate
    :config
    (ha-leader
      "t A" '("annotations" . annotate-mode)

      "n"   '(:ignore t :which-key "notes")
      "n a" '("toggle mode" . annotate-mode)
      "n n" '("annotate"    . annotate-annotate)
      "n d" '("delete"      . annotate-delete)
      "n s" '("summary"     . annotate-show-annotation-summary)
      "n j" '("next"        . annotate-goto-next-annotation)
      "n k" '("prev"        . annotate-goto-previous-annotation)))
#+END_SRC
Keep the annotations simple, almost /tag-like/, and then the summary allows you to display them.
** Keepass
Use the [[https://github.com/ifosch/keepass-mode][keepass-mode]] to view a /read-only/ version of my Keepass file in Emacs:
#+BEGIN_SRC emacs-lisp
  (use-package keepass-mode)
#+END_SRC
When having your point on a key entry, you can copy fields to kill-ring using:
  - ~u~ :: URL
  - ~b~ :: user name
  - ~c~ :: password

** Demo It
Making demonstrations /within/ Emacs with my [[https://github.com/howardabrams/demo-it][demo-it]] project. While it is on MELPA, I want to use my own cloned version to make sure I can keep debugging aspects of it. Especially since its use of [[https://github.com/takaxp/org-tree-slide][org-tree-slide]] has separated so that I can use [[https://github.com/rlister/org-present][org-present]].
#+BEGIN_SRC emacs-lisp
  (use-package demo-it
    :straight (:type git :protocol ssh :host github :repo "howardabrams/demo-it")
    :commands (demo-it-create demo-it-start))
#+END_SRC
** PDF Viewing
Why not [[https://github.com/politza/pdf-tools][view PDF files]] better? To do this, first install the following on a Mac:
#+BEGIN_SRC sh
  brew install poppler automake
#+END_SRC
And the equivalent on Linux. Actually, it is better to run [[help:pdf-tools-install][pdf-tools-install]], as it will do the above for the system.

Finally, let’s install the Emacs connection to the =pdfinfo= program:
#+BEGIN_SRC emacs-lisp
  (use-package pdf-tools
    :mode ("\\.pdf\\'" . pdf-view-mode)
    :init
    (setq pdf-info-epdfinfo-program "/usr/local/bin/epdfinfo")
    :general
    (:states 'normal :keymaps 'pdf-view-mode-map
             "gp" 'pdf-view-goto-page
             ">"  'doc-view-fit-window-to-page))
#+END_SRC

Make sure the [[help:pdf-info-check-epdfinfo][pdf-info-check-epdfinfo]] function works.
* Technical Artifacts :noexport:
Let's provide a name so that the file can be required:

#+BEGIN_SRC emacs-lisp :exports none
(provide 'ha-config)
;;; ha-config.el ends here
#+END_SRC

Before you can build this on a new system, make sure that you put the cursor over any of these properties, and hit: ~C-c C-c~

#+DESCRIPTION: A literate programming file for configuring Emacs.

#+PROPERTY:    header-args:sh :tangle no
#+PROPERTY:    header-args:emacs-lisp :tangle yes
#+PROPERTY:    header-args   :results none   :eval no-export   :comments no

#+OPTIONS:     num:nil toc:nil todo:nil tasks:nil tags:nil date:nil
#+OPTIONS:     skip:nil author:nil email:nil creator:nil timestamp:nil
#+INFOJS_OPT:  view:nil toc:nil ltoc:t mouse:underline buttons:0 path:http://orgmode.org/org-info.js