git.shemshak.org - ~bandali/configs/blob - init.org

   1 #+title: =aminb='s Literate Emacs Configuration
   2 #+author: Amin Bandali
   3 #+babel: :cache yes
   4 #+property: header-args :tangle yes
   5
   6 * About
   7 :PROPERTIES:
   8 :CUSTOM_ID: about
   9 :END:
  10
  11 This org file is my literate configuration for GNU Emacs, and is
  12 tangled to [[./init.el][init.el]].  Packages are installed and managed using
  13 [[https://github.com/raxod502/straight.el][straight.el]].  Over the years, I've taken inspiration from
  14 configurations of many different people.  Some of the configurations
  15 that I can remember off the top of my head are:
  16
  17 - [[https://github.com/dieggsy/dotfiles][dieggsy/dotfiles]]: literate Emacs and dotfiles configuration, uses
  18   straight.el for managing packages
  19 - [[https://github.com/dakra/dmacs][dakra/dmacs]]: literate Emacs configuration, using Borg for managing
  20   packages
  21 - [[http://pages.sachachua.com/.emacs.d/Sacha.html][Sacha Chua's literate Emacs configuration]]
  22 - [[https://github.com/dakrone/eos][dakrone/eos]]
  23 - Ryan Rix's [[http://doc.rix.si/cce/cce.html][Complete Computing Environment]] ([[http://doc.rix.si/projects/fsem.html][about cce]])
  24 - [[https://github.com/jwiegley/dot-emacs][jwiegley/dot-emacs]]: nix-based configuration
  25 - [[https://github.com/wasamasa/dotemacs][wasamasa/dotemacs]]
  26 - [[https://github.com/hlissner/doom-emacs][Doom Emacs]]
  27
  28 I'd like to have a fully reproducible Emacs setup (part of the reason
  29 why I store my configuration in this repository) but unfortunately out
  30 of the box, that's not achievable with =package.el=, not currently
  31 anyway.  So, I've opted to use =straight.el=.  I also used Borg for a
  32 few months, but decided to try =straight.el= which allows direct use
  33 of the various package archives.
  34
  35 * Contents                                                   :toc_1:noexport:
  36
  37 - [[#about][About]]
  38 - [[#header][Header]]
  39 - [[#initial-setup][Initial setup]]
  40 - [[#core][Core]]
  41 - [[#borg-essentials][Borg's =layer/essentials=]]
  42 - [[#editing][Editing]]
  43 - [[#syntax-spell-checking][Syntax and spell checking]]
  44 - [[#programming-modes][Programming modes]]
  45 - [[#emacs-enhancements][Emacs enhancements]]
  46 - [[#email][Email]]
  47 - [[#blogging][Blogging]]
  48 - [[#post-initialization][Post initialization]]
  49 - [[#footer][Footer]]
  50
  51 * Header
  52 :PROPERTIES:
  53 :CUSTOM_ID: header
  54 :END:
  55
  56 ** First line
  57
  58 #+begin_src emacs-lisp :comments none
  59 ;;; init.el --- Amin Bandali's Emacs config -*- lexical-binding: t; eval: (view-mode 1) -*-
  60 #+end_src
  61
  62 Enable =view-mode=, which both makes the file read-only (as a reminder
  63 that =init.el= is an auto-generated file, not supposed to be edited),
  64 and provides some convenient key bindings for browsing through the
  65 file.
  66
  67 ** License
  68
  69 #+begin_src emacs-lisp :comments none
  70 ;; Copyright (C) 2018  Amin Bandali <bandali@gnu.org>
  71
  72 ;; This program is free software: you can redistribute it and/or modify
  73 ;; it under the terms of the GNU General Public License as published by
  74 ;; the Free Software Foundation, either version 3 of the License, or
  75 ;; (at your option) any later version.
  76
  77 ;; This program is distributed in the hope that it will be useful,
  78 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  79 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  80 ;; GNU General Public License for more details.
  81
  82 ;; You should have received a copy of the GNU General Public License
  83 ;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
  84 #+end_src
  85
  86 ** Commentary
  87
  88 #+begin_src emacs-lisp :comments none
  89 ;;; Commentary:
  90
  91 ;; Emacs configuration of Amin Bandali, computer scientist, functional
  92 ;; programmer, and free software advocate.
  93
  94 ;; THIS FILE IS AUTO-GENERATED FROM `init.org'.
  95 #+end_src
  96
  97 * Initial setup
  98 :PROPERTIES:
  99 :CUSTOM_ID: initial-setup
 100 :END:
 101
 102 ** Emacs initialization
 103
 104 I'd like to do a couple of measurements of Emacs' startup time. First,
 105 let's see how long Emacs takes to start up, before even loading
 106 =init.el=, i.e. =user-init-file=:
 107
 108 #+begin_src emacs-lisp
 109 (defvar a/before-user-init-time (current-time)
 110   "Value of `current-time' when Emacs begins loading `user-init-file'.")
 111 (message "Loading Emacs...done (%.3fs)"
 112          (float-time (time-subtract a/before-user-init-time
 113                                     before-init-time)))
 114 #+end_src
 115
 116 Also, temporarily increase ~gc-cons-threshhold~ and
 117 ~gc-cons-percentage~ during startup to reduce garbage collection
 118 frequency. Clearing the ~file-name-handler-alist~ seems to help reduce
 119 startup time as well.
 120
 121 #+begin_src emacs-lisp
 122 (defvar a/gc-cons-threshold gc-cons-threshold)
 123 (defvar a/gc-cons-percentage gc-cons-percentage)
 124 (defvar a/file-name-handler-alist file-name-handler-alist)
 125 (setq gc-cons-threshold (* 400 1024 1024)  ; 400 MiB
 126       gc-cons-percentage 0.6
 127       file-name-handler-alist nil
 128       ;; sidesteps a bug when profiling with esup
 129       esup-child-profile-require-level 0)
 130 #+end_src
 131
 132 Of course, we'd like to set them back to their defaults once we're
 133 done initializing.
 134
 135 #+begin_src emacs-lisp
 136 (add-hook
 137  'after-init-hook
 138  (lambda ()
 139    (setq gc-cons-threshold a/gc-cons-threshold
 140          gc-cons-percentage a/gc-cons-percentage
 141          file-name-handler-alist a/file-name-handler-alist)))
 142 #+end_src
 143
 144 Increase the number of lines kept in message logs (the =*Messages*=
 145 buffer).
 146
 147 #+begin_src emacs-lisp
 148 (setq message-log-max 20000)
 149 #+end_src
 150
 151 Optionally, we could suppress some byte compiler warnings like below,
 152 but for now I've decided to keep them enabled. See documentation for
 153 ~byte-compile-warnings~ for more details.
 154
 155 #+begin_src emacs-lisp
 156 ;; (setq byte-compile-warnings
 157 ;;       '(not free-vars unresolved noruntime lexical make-local))
 158 #+end_src
 159
 160 ** whoami
 161
 162 #+begin_src emacs-lisp
 163 (setq user-full-name "Amin Bandali"
 164       user-mail-address "amin@aminb.org")
 165 #+end_src
 166
 167 ** Package management
 168
 169 *** No =package.el=
 170
 171 I can do all my package management things with =straight.el=, and
 172 don't need Emacs' built-in =package.el=.  Emacs 27 lets us disable
 173 =package.el= in the =early-init-file= (see [[https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=24acb31c04b4048b85311d794e600ecd7ce60d3b][here]]).
 174
 175 #+begin_src emacs-lisp :tangle early-init.el
 176 (setq package-enable-at-startup nil)
 177 #+end_src
 178
 179 But since Emacs 27 isn't out yet (Emacs 26 is just around the corner
 180 right now), and even when released it'll be long before most distros
 181 ship in their repos, I'll still put the old workaround with the
 182 commented call to ~package-initialize~ here anyway.
 183
 184 #+begin_src emacs-lisp :tangle no
 185 (setq package-enable-at-startup nil)
 186 ;; (package-initialize)
 187 #+end_src
 188
 189 Update: the above is not necessary, since =straight.el= automatically
 190 does that (and more).  See =straight-package-neutering-mode=.
 191
 192 *** =straight.el=
 193
 194 #+begin_quote
 195 Next-generation, purely functional package manager for the Emacs
 196 hacker.
 197 #+end_quote
 198
 199 =straight.el= allows me to have a fully reproducible Emacs setup.
 200
 201 #+begin_src emacs-lisp
 202 ;; Main engine start...
 203
 204 (setq straight-repository-branch "develop")
 205
 206 (defun a/bootstrap-straight ()
 207   (defvar bootstrap-version)
 208   (let ((bootstrap-file
 209          (expand-file-name "straight/repos/straight.el/bootstrap.el" user-emacs-directory))
 210         (bootstrap-version 5))
 211     (unless (file-exists-p bootstrap-file)
 212       (with-current-buffer
 213           (url-retrieve-synchronously
 214            "https://raw.githubusercontent.com/raxod502/straight.el/develop/install.el"
 215            'silent 'inhibit-cookies)
 216         (goto-char (point-max))
 217         (eval-print-last-sexp)))
 218     (load bootstrap-file nil 'nomessage)))
 219
 220 ;; Solid rocket booster ignition...
 221
 222 (defun a/build-init ()
 223   (a/bootstrap-straight)
 224   (byte-compile-file "init.el"))
 225
 226 (a/bootstrap-straight)
 227
 228 ;; We have lift off!
 229
 230 (setq straight-use-package-by-default t)
 231 #+end_src
 232
 233 Since we enable =straight.el='s =straight-use-package-by-default=
 234 integration, we will define a =use-feature= for plain ole
 235 =use-package= without any of the =straight.el= stuff.
 236
 237 #+begin_src emacs-lisp
 238 (defmacro use-feature (name &rest args)
 239   "Like `use-package', but with `straight-use-package-by-default' disabled."
 240   (declare (indent defun))
 241   `(use-package ,name
 242      :straight nil
 243      ,@args))
 244 #+end_src
 245
 246 *** =use-package=
 247
 248 #+begin_quote
 249 A use-package declaration for simplifying your .emacs
 250 #+end_quote
 251
 252 [[https://github.com/jwiegley/use-package][use-package]] is an awesome utility for managing and configuring
 253 packages (in our case especially the latter) in a neatly organized way
 254 and without compromising on performance.
 255
 256 #+begin_src emacs-lisp
 257 (straight-use-package 'use-package)
 258 (if nil  ; set to t when need to debug init
 259     (setq use-package-verbose t
 260           use-package-expand-minimally nil
 261           use-package-compute-statistics t
 262           debug-on-error t)
 263   (setq use-package-verbose nil
 264         use-package-expand-minimally t))
 265
 266 (setq use-package-always-defer t)
 267 #+end_src
 268
 269 *** Epkg
 270
 271 #+begin_quote
 272 Browse the Emacsmirror package database
 273 #+end_quote
 274
 275 Epkg provides access to a local copy of the [[https://emacsmirror.net][Emacsmirror]] package
 276 database, low-level functions for querying the database, and a
 277 =package.el=-like user interface for browsing the available packages.
 278
 279 #+begin_src emacs-lisp
 280 (require 'bind-key)
 281 (use-package epkg
 282   :commands (epkg-list-packages epkg-describe-package)
 283   :bind
 284   (("C-c P e d" . epkg-describe-package)
 285    ("C-c P e p" . epkg-list-packages))
 286   :config
 287   (setq epkg-repository "~/.emacs.d/straight/repos/epkgs/")
 288   (eval-when-compile (defvar ivy-initial-inputs-alist))
 289   (with-eval-after-load 'ivy
 290     (add-to-list
 291      'ivy-initial-inputs-alist '(epkg-describe-package . "^") t)))
 292 #+end_src
 293
 294 ** No littering in =~/.emacs.d=
 295
 296 #+begin_quote
 297 Help keeping ~/.emacs.d clean
 298 #+end_quote
 299
 300 By default, even for Emacs' built-in packages, the configuration files
 301 and persistent data are all over the place. Use =no-littering= to help
 302 contain the mess.
 303
 304 #+begin_src emacs-lisp
 305 (use-package no-littering
 306   :demand t
 307   :config
 308   (savehist-mode 1)
 309   (add-to-list 'savehist-additional-variables 'kill-ring)
 310   (save-place-mode 1)
 311   (setq auto-save-file-name-transforms
 312         `((".*" ,(no-littering-expand-var-file-name "auto-save/") t))))
 313 #+end_src
 314
 315 ** Custom file (=custom.el=)
 316
 317 I'm not planning on using the custom file much, but even so, I
 318 definitely don't want it mixing with =init.el=. So, here; let's give
 319 it it's own file. While at it, treat themes as safe.
 320
 321 #+begin_src emacs-lisp
 322 (use-feature custom
 323   :no-require t
 324   :config
 325   (setq custom-file (no-littering-expand-etc-file-name "custom.el"))
 326   (when (file-exists-p custom-file)
 327     (load custom-file))
 328   (setf custom-safe-themes t))
 329 #+end_src
 330
 331 ** Secrets file
 332
 333 Load the secrets file if it exists, otherwise show a warning.
 334
 335 #+begin_src emacs-lisp
 336 (with-demoted-errors
 337     (load (no-littering-expand-etc-file-name "secrets")))
 338 #+end_src
 339
 340 ** Better =$PATH= handling
 341
 342 Let's use [[https://github.com/purcell/exec-path-from-shell][exec-path-from-shell]] to make Emacs use the =$PATH= as set up
 343 in my shell.
 344
 345 #+begin_src emacs-lisp
 346 (use-package exec-path-from-shell
 347   :defer 1
 348   :init
 349   (setq exec-path-from-shell-check-startup-files nil)
 350   :config
 351   (exec-path-from-shell-initialize)
 352   ;; while we're at it, let's fix access to our running ssh-agent
 353   (exec-path-from-shell-copy-env "SSH_AGENT_PID")
 354   (exec-path-from-shell-copy-env "SSH_AUTH_SOCK"))
 355 #+end_src
 356
 357 ** COMMENT Only one custom theme at a time
 358
 359 #+begin_src emacs-lisp
 360 (defadvice load-theme (before clear-previous-themes activate)
 361   "Clear existing theme settings instead of layering them"
 362   (mapc #'disable-theme custom-enabled-themes))
 363 #+end_src
 364
 365 ** Server
 366
 367 Start server if not already running. Alternatively, can be done by
 368 issuing =emacs --daemon= in the terminal, which can be automated with
 369 a systemd service or using =brew services start emacs= on macOS. I use
 370 Emacs as my window manager (via EXWM), so I always start Emacs on
 371 login; so starting the server from inside Emacs is good enough for me.
 372
 373 See [[https://www.gnu.org/software/emacs/manual/html_node/emacs/Emacs-Server.html#Emacs-Server][Using Emacs as a Server]].
 374
 375 #+begin_src emacs-lisp
 376 (use-feature server
 377   :defer 1
 378   :config (or (server-running-p) (server-mode)))
 379 #+end_src
 380
 381 ** COMMENT Unicode support
 382
 383 Font stack with better unicode support, around =Ubuntu Mono= and
 384 =Hack=.
 385
 386 #+begin_src emacs-lisp
 387 (dolist (ft (fontset-list))
 388   (set-fontset-font
 389    ft
 390    'unicode
 391    (font-spec :name "Source Code Pro" :size 14))
 392   (set-fontset-font
 393    ft
 394    'unicode
 395    (font-spec :name "DejaVu Sans Mono")
 396    nil
 397    'append)
 398   ;; (set-fontset-font
 399   ;;  ft
 400   ;;  'unicode
 401   ;;  (font-spec
 402   ;;   :name "Symbola monospacified for DejaVu Sans Mono")
 403   ;;  nil
 404   ;;  'append)
 405   ;; (set-fontset-font
 406   ;;  ft
 407   ;;  #x2115  ; ℕ
 408   ;;  (font-spec :name "DejaVu Sans Mono")
 409   ;;  nil
 410   ;;  'append)
 411   (set-fontset-font
 412    ft
 413    (cons ?Α ?ω)
 414    (font-spec :name "DejaVu Sans Mono" :size 14)
 415    nil
 416    'prepend))
 417 #+end_src
 418
 419 ** Gentler font resizing
 420
 421 #+begin_src emacs-lisp
 422 (setq text-scale-mode-step 1.05)
 423 #+end_src
 424
 425 ** Focus follows mouse
 426
 427 I’d like focus to follow the mouse when I move the cursor from one
 428 window to the next.
 429
 430 #+begin_src emacs-lisp
 431 (setq mouse-autoselect-window t)
 432 #+end_src
 433
 434 Let’s define a function to conveniently disable this for certain
 435 buffers and/or modes.
 436
 437 #+begin_src emacs-lisp
 438 (defun a/no-mouse-autoselect-window ()
 439   (make-local-variable 'mouse-autoselect-window)
 440   (setq mouse-autoselect-window nil))
 441 #+end_src
 442
 443 ** Libraries
 444
 445 #+begin_src emacs-lisp
 446 (require 'cl-lib)
 447 (require 'subr-x)
 448 #+end_src
 449
 450 ** Useful utilities
 451
 452 Convenience macro for =setq='ing multiple variables to the same value:
 453
 454 #+begin_src emacs-lisp
 455 (defmacro a/setq-every (value &rest vars)
 456   "Set all the variables from VARS to value VALUE."
 457   (declare (indent defun) (debug t))
 458   `(progn ,@(mapcar (lambda (x) (list 'setq x value)) vars)))
 459 #+end_src
 460
 461 The following process-related stuff from [[https://github.com/alezost/emacs-config][alezost's emacs-config]].
 462
 463 #+begin_src emacs-lisp
 464 (defun a/start-process (program &rest args)
 465   "Same as `start-process', but doesn't bother about name and buffer."
 466   (let ((process-name (concat program "_process"))
 467         (buffer-name  (generate-new-buffer-name
 468                        (concat program "_output"))))
 469     (apply #'start-process
 470            process-name buffer-name program args)))
 471
 472 (defun a/dired-start-process (program &optional args)
 473   "Open current file with a PROGRAM."
 474   ;; Shell command looks like this: "program [ARGS]... FILE" (ARGS can
 475   ;; be nil, so remove it).
 476   (apply #'a/start-process
 477          program
 478          (remove nil (list args (dired-get-file-for-visit)))))
 479 #+end_src
 480
 481 * Core
 482 :PROPERTIES:
 483 :CUSTOM_ID: core
 484 :END:
 485
 486 ** Defaults
 487
 488 *** Time and battery in mode-line
 489
 490 Enable displaying time and battery in the mode-line, since I'm not
 491 using the Xfce panel anymore. Also, I don't need to see the load
 492 average on a regular basis, so disable that.
 493
 494 Note: using =i3status= on sway at the moment, so disabling this.
 495
 496 #+begin_src emacs-lisp :tangle no
 497 (use-package time
 498   :init
 499   (setq display-time-default-load-average nil)
 500   :config
 501   (display-time-mode))
 502
 503 (use-package battery
 504   :config
 505   (display-battery-mode))
 506 #+end_src
 507
 508 *** Smaller fringe
 509
 510 Might want to set the fringe to a smaller value, especially if using
 511 EXWM. I'm fine with the default for now.
 512
 513 #+begin_src emacs-lisp
 514 ;; (fringe-mode '(3 . 1))
 515 (fringe-mode nil)
 516 #+end_src
 517
 518 *** Disable disabled commands
 519
 520 Emacs disables some commands by default that could persumably be
 521 confusing for novice users. Let's disable that.
 522
 523 #+begin_src emacs-lisp
 524 (setq disabled-command-function nil)
 525 #+end_src
 526
 527 *** Kill-ring
 528
 529 Save what I copy into clipboard from other applications into Emacs'
 530 kill-ring, which would allow me to still be able to easily access it
 531 in case I kill (cut or copy) something else inside Emacs before
 532 yanking (pasting) what I'd originally intended to.
 533
 534 #+begin_src emacs-lisp
 535 (setq save-interprogram-paste-before-kill t)
 536 #+end_src
 537
 538 *** Minibuffer
 539
 540 #+begin_src emacs-lisp
 541 (setq enable-recursive-minibuffers t
 542       resize-mini-windows t)
 543 #+end_src
 544
 545 *** Lazy-person-friendly yes/no prompts
 546
 547 Lazy people would prefer to type fewer keystrokes, especially for yes
 548 or no questions. I'm lazy.
 549
 550 #+begin_src emacs-lisp
 551 (defalias 'yes-or-no-p #'y-or-n-p)
 552 #+end_src
 553
 554 *** Startup screen and =*scratch*=
 555
 556 Firstly, let Emacs know that I'd like to have =*scratch*= as my
 557 startup buffer.
 558
 559 #+begin_src emacs-lisp
 560 (setq initial-buffer-choice t)
 561 #+end_src
 562
 563 Now let's customize the =*scratch*= buffer a bit. First off, I don't
 564 need the default hint.
 565
 566 #+begin_src emacs-lisp
 567 (setq initial-scratch-message nil)
 568 #+end_src
 569
 570 Also, let's use Text mode as the major mode, in case I want to
 571 customize it (=*scratch*='s default major mode, Fundamental mode,
 572 can't really be customized).
 573
 574 #+begin_src emacs-lisp
 575 (setq initial-major-mode 'text-mode)
 576 #+end_src
 577
 578 Inhibit the buffer list when more than 2 files are loaded.
 579
 580 #+begin_src emacs-lisp
 581 (setq inhibit-startup-buffer-menu t)
 582 #+end_src
 583
 584 I don't really need to see the startup screen or echo area message
 585 either.
 586
 587 #+begin_src emacs-lisp
 588 (advice-add #'display-startup-echo-area-message :override #'ignore)
 589 (setq inhibit-startup-screen t
 590       inhibit-startup-echo-area-message user-login-name)
 591 #+end_src
 592
 593 *** More useful frame titles
 594
 595 Show either the file name or the buffer name (in case the buffer isn't
 596 visiting a file). Borrowed from Emacs Prelude.
 597
 598 #+begin_src emacs-lisp
 599 (setq frame-title-format
 600       '("" invocation-name " - "
 601         (:eval (if (buffer-file-name)
 602                    (abbreviate-file-name (buffer-file-name))
 603                  "%b"))))
 604 #+end_src
 605
 606 *** Backups
 607
 608 Emacs' default backup settings aren't that great. Let's use more
 609 sensible options. See documentation for the ~make-backup-file~
 610 variable.
 611
 612 #+begin_src emacs-lisp
 613 (setq backup-by-copying t
 614       version-control t
 615       delete-old-versions t)
 616 #+end_src
 617
 618 *** Auto revert
 619
 620 Enable automatic reloading of changed buffers and files.
 621
 622 #+begin_src emacs-lisp
 623 (global-auto-revert-mode 1)
 624 (setq auto-revert-verbose nil
 625       global-auto-revert-non-file-buffers nil)
 626 #+end_src
 627
 628 *** Always use space for indentation
 629
 630 #+begin_src emacs-lisp
 631 (setq-default
 632  indent-tabs-mode nil
 633  require-final-newline t
 634  tab-width 4)
 635 #+end_src
 636
 637 *** Winner mode
 638
 639 Enable =winner-mode=.
 640
 641 #+begin_src emacs-lisp
 642 (winner-mode 1)
 643 #+end_src
 644
 645 *** Don’t display =*compilation*= on success
 646
 647 Based on https://stackoverflow.com/a/17788551, with changes to use
 648 =cl-letf= instead of the now obsolete =flet=.
 649
 650 #+begin_src emacs-lisp
 651 (with-eval-after-load 'compile
 652   (defun a/compilation-finish-function (buffer outstr)
 653     (unless (string-match "finished" outstr)
 654       (switch-to-buffer-other-window buffer))
 655     t)
 656
 657   (setq compilation-finish-functions #'a/compilation-finish-function)
 658
 659   (require 'cl-macs)
 660
 661   (defadvice compilation-start
 662       (around inhibit-display
 663               (command &optional mode name-function highlight-regexp))
 664     (if (not (string-match "^\\(find\\|grep\\)" command))
 665         (cl-letf (((symbol-function 'display-buffer) #'ignore))
 666           (save-window-excursion ad-do-it))
 667       ad-do-it))
 668   (ad-activate 'compilation-start))
 669 #+end_src
 670
 671 *** Search for non-ASCII characters
 672
 673 I’d like non-ASCII characters such as ‘’“”«»‹›áⓐ𝒶 to be selected when
 674 I search for their ASCII counterpart.  Shoutout to [[http://endlessparentheses.com/new-in-emacs-25-1-easily-search-non-ascii-characters.html][endlessparentheses]]
 675 for this.
 676
 677 #+begin_src emacs-lisp
 678 (setq search-default-mode #'char-fold-to-regexp)
 679
 680 ;; uncomment to extend this behaviour to query-replace
 681 ;; (setq replace-char-fold t)
 682 #+end_src
 683
 684 *** Cursor shape
 685
 686 #+begin_src emacs-lisp
 687 (setq-default cursor-type 'bar)
 688 #+end_src
 689
 690 *** Allow scrolling in Isearch
 691
 692 #+begin_src emacs-lisp
 693 (setq isearch-allow-scroll t)
 694 #+end_src
 695
 696 ** Bindings
 697
 698 #+begin_src emacs-lisp
 699 (bind-keys
 700  ("C-c a i" . ielm)
 701
 702  ("C-c e b" . eval-buffer)
 703  ("C-c e r" . eval-region)
 704
 705  ("C-c F m" . make-frame-command)
 706  ("C-c F d" . delete-frame)
 707  ("C-c F D" . delete-other-frames)
 708
 709  ("C-c o"   . other-window)
 710
 711  ("C-c Q"   . save-buffers-kill-terminal)
 712
 713  ("C-S-h C" . describe-char)
 714  ("C-S-h F" . describe-face)
 715
 716  ("C-x K"   . kill-this-buffer)
 717
 718  ("s-p"     . beginning-of-buffer)
 719  ("s-n"     . end-of-buffer))
 720 #+end_src
 721
 722 ** Packages
 723
 724 The packages in this section are absolutely essential to my everyday
 725 workflow, and they play key roles in how I do my computing. They
 726 immensely enhance the Emacs experience for me; both using Emacs, and
 727 customizing it.
 728
 729 *** [[https://github.com/emacscollective/auto-compile][auto-compile]]
 730
 731 #+begin_src emacs-lisp
 732 (use-package auto-compile
 733   :demand t
 734   :config
 735   (auto-compile-on-load-mode)
 736   (auto-compile-on-save-mode)
 737   (setq auto-compile-display-buffer               nil
 738         auto-compile-mode-line-counter            t
 739         auto-compile-source-recreate-deletes-dest t
 740         auto-compile-toggle-deletes-nonlib-dest   t
 741         auto-compile-update-autoloads             t)
 742   (add-hook 'auto-compile-inhibit-compile-hook
 743             'auto-compile-inhibit-compile-detached-git-head))
 744 #+end_src
 745
 746 *** [[https://orgmode.org/][Org]]
 747
 748 #+begin_quote
 749 Org mode is for keeping notes, maintaining TODO lists, planning
 750 projects, and authoring documents with a fast and effective plain-text
 751 system.
 752 #+end_quote
 753
 754 In short, my favourite way of life.
 755
 756 First, we have to resort to a [[https://github.com/raxod502/straight.el#installing-org-with-straightel][hack]] to be able to use the correct
 757 latest version of Org from upstream.
 758
 759 #+begin_src emacs-lisp
 760   (use-package git)
 761
 762   (defun org-git-version ()
 763     "The Git version of org-mode.
 764   Inserted by installing org-mode or when a release is made."
 765     (require 'git)
 766     (let ((git-repo (expand-file-name
 767                      "straight/repos/org/" user-emacs-directory)))
 768       (string-trim
 769        (git-run "describe"
 770                 "--match=release\*"
 771                 "--abbrev=6"
 772                 "HEAD"))))
 773
 774   (defun org-release ()
 775     "The release version of org-mode.
 776   Inserted by installing org-mode or when a release is made."
 777     (require 'git)
 778     (let ((git-repo (expand-file-name
 779                      "straight/repos/org/" user-emacs-directory)))
 780       (string-trim
 781        (string-remove-prefix
 782         "release_"
 783         (git-run "describe"
 784                  "--match=release\*"
 785                  "--abbrev=0"
 786                  "HEAD")))))
 787
 788 (provide 'org-version)
 789 #+end_src
 790
 791 We will use the =org-plus-contrib= package to get the whole deal:
 792
 793 #+begin_src emacs-lisp
 794 (straight-use-package 'org-plus-contrib)
 795 #+end_src
 796
 797 And here's where my actual Org configurations begin:
 798
 799 #+begin_src emacs-lisp
 800 (use-feature org
 801   :defer 0.5
 802   :config
 803   (setq org-src-tab-acts-natively t
 804         org-src-preserve-indentation nil
 805         org-edit-src-content-indentation 0
 806         org-email-link-description-format "Email %c: %s" ; %.30s
 807         org-highlight-latex-and-related '(entities)
 808         org-use-speed-commands t
 809         org-startup-folded 'content
 810         org-catch-invisible-edits 'show-and-error
 811         org-log-done 'time)
 812   (add-to-list 'org-structure-template-alist '("L" . "src emacs-lisp") t)
 813   (font-lock-add-keywords
 814    'org-mode
 815    '(("[ \t]*\\(#\\+\\(BEGIN\\|END\\|begin\\|end\\)_\\(\\S-+\\)\\)[ \t]*\\([^\n:]*\\)"
 816       (1 '(:foreground "#5a5b5a" :background "#292b2b") t) ; directive
 817       (3 '(:foreground "#81a2be" :background "#292b2b") t) ; kind
 818       (4 '(:foreground "#c5c8c6") t))) ; title
 819    t)
 820   :bind (:map org-mode-map ("M-L" . org-insert-last-stored-link))
 821   :hook ((org-mode . org-indent-mode)
 822          (org-mode . auto-fill-mode)
 823          (org-mode . flyspell-mode))
 824   :custom
 825   (org-latex-packages-alist '(("" "listings") ("" "color")))
 826   :custom-face
 827   '(org-block-begin-line ((t (:foreground "#5a5b5a" :background "#1d1f21"))))
 828   '(org-block ((t (:background "#1d1f21"))))
 829   '(org-latex-and-related ((t (:foreground "#b294bb")))))
 830
 831 (use-feature ox-latex
 832   :after ox
 833   :config
 834   (setq org-latex-listings 'listings
 835         ;; org-latex-prefer-user-labels t
 836         )
 837   (add-to-list 'org-latex-packages-alist '("" "listings"))
 838   (add-to-list 'org-latex-packages-alist '("" "color"))
 839   (add-to-list 'org-latex-classes
 840                '("IEEEtran" "\\documentclass[11pt]{IEEEtran}"
 841                  ("\\section{%s}" . "\\section*{%s}")
 842                  ("\\subsection{%s}" . "\\subsection*{%s}")
 843                  ("\\subsubsection{%s}" . "\\subsubsection*{%s}")
 844                  ("\\paragraph{%s}" . "\\paragraph*{%s}")
 845                  ("\\subparagraph{%s}" . "\\subparagraph*{%s}"))
 846                t))
 847
 848 (use-feature ox-beamer
 849   :demand
 850   :after ox)
 851 #+end_src
 852
 853 **** asynchronous tangle
 854
 855 =a/async-babel-tangle= is a function closely inspired by [[https://github.com/dieggsy/dotfiles/tree/cc10edf7701958eff1cd94d4081da544d882a28c/emacs.d#dotfiles][dieggsy's
 856 d/async-babel-tangle]] which uses [[https://github.com/jwiegley/emacs-async][async]] to asynchronously tangle an org
 857 file.
 858
 859 #+begin_src emacs-lisp
 860 (with-eval-after-load 'org
 861   (defvar a/show-async-tangle-results nil
 862     "Keep *emacs* async buffers around for later inspection.")
 863
 864   (defvar a/show-async-tangle-time nil
 865     "Show the time spent tangling the file.")
 866
 867   (defvar a/async-tangle-post-compile "make bi"
 868     "If non-nil, pass to `compile' after successful tangle.")
 869
 870   (defvar a/async-tangle-byte-recompile nil
 871     "If non-nil, byte-recompile the file on successful tangle.")
 872
 873   (defun a/async-babel-tangle ()
 874     "Tangle org file asynchronously."
 875     (interactive)
 876     (let* ((file-tangle-start-time (current-time))
 877            (file (buffer-file-name))
 878            (file-nodir (file-name-nondirectory file))
 879            ;; (async-quiet-switch "-q")
 880            (file-noext (file-name-sans-extension file)))
 881       (async-start
 882        `(lambda ()
 883           (require 'org)
 884           (org-babel-tangle-file ,file))
 885        (unless a/show-async-tangle-results
 886          `(lambda (result)
 887             (if result
 888                 (progn
 889                   (setq byte-compile-warnings '(not noruntime unresolved))
 890                   (message "Tangled %s%s"
 891                            ,file-nodir
 892                            (if a/show-async-tangle-time
 893                                (format " (%.3fs)"
 894                                        (float-time (time-subtract (current-time)
 895                                                                   ',file-tangle-start-time)))
 896                              ""))
 897                   (when a/async-tangle-post-compile
 898                     (compile a/async-tangle-post-compile))
 899                   (when a/async-tangle-byte-recompile
 900                     (byte-recompile-file (concat ,file-noext ".el"))))
 901               (message "Tangling %s failed" ,file-nodir))))))))
 902
 903 (add-to-list
 904  'safe-local-variable-values
 905  '(eval add-hook 'after-save-hook #'a/async-babel-tangle 'append 'local))
 906 #+end_src
 907
 908 *** [[https://magit.vc/][Magit]]
 909
 910 #+begin_quote
 911 It's Magit! A Git porcelain inside Emacs.
 912 #+end_quote
 913
 914 Not just how I do git, but /the/ way to do git.
 915
 916 #+begin_src emacs-lisp
 917 (use-package magit
 918   :defer 1
 919   :bind (("C-x g" . magit-status)
 920          ("s-g s" . magit-status)
 921          ("s-g l" . magit-log-buffer-file))
 922   :config
 923   (magit-add-section-hook 'magit-status-sections-hook
 924                           'magit-insert-modules
 925                           'magit-insert-stashes
 926                           'append)
 927   (setq
 928    magit-repository-directories '(("~/.emacs.d/" . 0)
 929                                   ("~/src/git/" . 1)))
 930   (nconc magit-section-initial-visibility-alist
 931          '(([unpulled status] . show)
 932            ([unpushed status] . show)))
 933   :custom-face (magit-diff-file-heading ((t (:weight normal)))))
 934 #+end_src
 935
 936 *** recentf
 937
 938 Recently opened files.
 939
 940 #+begin_src emacs-lisp
 941 (use-feature recentf
 942   :defer 0.5
 943   :config
 944   (add-to-list 'recentf-exclude "^/\\(?:ssh\\|su\\|sudo\\)?:")
 945   (setq recentf-max-saved-items 40))
 946 #+end_src
 947
 948 *** smex
 949
 950 #+begin_quote
 951 A smart M-x enhancement for Emacs.
 952 #+end_quote
 953
 954 Mostly because =counsel= needs it to remember history.
 955
 956 #+begin_src emacs-lisp
 957 (use-package smex)
 958 #+end_src
 959
 960 *** [[https://github.com/abo-abo/swiper][Ivy]] (and friends)
 961
 962 #+begin_quote
 963 Ivy - a generic completion frontend for Emacs, Swiper - isearch with
 964 an overview, and more. Oh, man!
 965 #+end_quote
 966
 967 There's no way I could top that, so I won't attempt to.
 968
 969 **** Ivy
 970
 971 #+begin_src emacs-lisp
 972 (use-package ivy
 973   :defer 0.6
 974   :bind
 975   (:map ivy-minibuffer-map
 976    ([escape] . keyboard-escape-quit)
 977    ([S-up]   . ivy-previous-history-element)
 978    ([S-down] . ivy-next-history-element)
 979    ("DEL"    . ivy-backward-delete-char))
 980   :config
 981   (setq ivy-wrap t)
 982   (ivy-mode 1)
 983   ;; :custom-face
 984   ;; (ivy-minibuffer-match-face-2 ((t (:background "#e99ce8" :weight semi-bold))))
 985   ;; (ivy-minibuffer-match-face-3 ((t (:background "#bbbbff" :weight semi-bold))))
 986   ;; (ivy-minibuffer-match-face-4 ((t (:background "#ffbbff" :weight semi-bold))))
 987 )
 988 #+end_src
 989
 990 **** Swiper
 991
 992 #+begin_src emacs-lisp
 993 (use-package swiper
 994   :after ivy
 995   :bind (("C-s"   . swiper)
 996          ("C-r"   . swiper)
 997          ("C-S-s" . isearch-forward)))
 998 #+end_src
 999
1000 **** Counsel
1001
1002 #+begin_src emacs-lisp
1003 (use-package counsel
1004   :after ivy
1005   :bind (([remap execute-extended-command] . counsel-M-x)
1006          ([remap find-file]                . counsel-find-file)
1007          ("s-r"                            . counsel-recentf)
1008          ("C-c x"                          . counsel-M-x)
1009          ("C-c f ."                        . counsel-find-file)
1010          :map minibuffer-local-map
1011          ("C-r" . counsel-minibuffer-history))
1012   :config
1013   (counsel-mode 1)
1014   (defalias 'locate #'counsel-locate))
1015 #+end_src
1016
1017 *** eshell
1018
1019 #+begin_src emacs-lisp
1020 (use-feature eshell
1021   :defer 1
1022   :commands eshell
1023   :bind ("C-c a s e" . eshell)
1024   :config
1025   (eval-when-compile (defvar eshell-prompt-regexp))
1026   (defun a/eshell-quit-or-delete-char (arg)
1027     (interactive "p")
1028     (if (and (eolp) (looking-back eshell-prompt-regexp nil))
1029         (eshell-life-is-too-much)
1030       (delete-char arg)))
1031
1032   (defun a/eshell-clear ()
1033     (interactive)
1034     (let ((inhibit-read-only t))
1035       (erase-buffer))
1036     (eshell-send-input))
1037
1038   (defun a/eshell-setup ()
1039     (make-local-variable 'company-idle-delay)
1040     (defvar company-idle-delay)
1041     (setq company-idle-delay nil)
1042     (bind-keys :map eshell-mode-map
1043                ("C-d"   . a/eshell-quit-or-delete-char)
1044                ("C-S-l" . a/eshell-clear)
1045                ("M-r"   . counsel-esh-history)
1046                ([tab]   . company-complete)))
1047
1048   :hook (eshell-mode . a/eshell-setup)
1049   :custom
1050   (eshell-hist-ignoredups t)
1051   (eshell-input-filter 'eshell-input-filter-initial-space))
1052 #+end_src
1053
1054 *** Ibuffer
1055
1056 #+begin_src emacs-lisp
1057 (use-feature ibuffer
1058   :bind
1059   (("C-x C-b" . ibuffer-other-window)
1060    :map ibuffer-mode-map
1061    ("P"   . ibuffer-backward-filter-group)
1062    ("N"   . ibuffer-forward-filter-group)
1063    ("M-p" . ibuffer-do-print)
1064    ("M-n" . ibuffer-do-shell-command-pipe-replace))
1065   :config
1066   ;; Use human readable Size column instead of original one
1067   (define-ibuffer-column size-h
1068     (:name "Size" :inline t)
1069     (cond
1070      ((> (buffer-size) 1000000) (format "%7.1fM" (/ (buffer-size) 1000000.0)))
1071      ((> (buffer-size) 100000) (format "%7.0fk" (/ (buffer-size) 1000.0)))
1072      ((> (buffer-size) 1000) (format "%7.1fk" (/ (buffer-size) 1000.0)))
1073      (t (format "%8d" (buffer-size)))))
1074   :custom
1075   (ibuffer-saved-filter-groups
1076    '(("default"
1077       ("dired" (mode . dired-mode))
1078       ("org"   (mode . org-mode))
1079       ("gnus"
1080        (or
1081         (mode . gnus-group-mode)
1082         (mode . gnus-summary-mode)
1083         (mode . gnus-article-mode)
1084         ;; not really, but...
1085         (mode . message-mode)))
1086       ("web"
1087        (or
1088         (mode . web-mode)
1089         (mode . css-mode)
1090         (mode . scss-mode)
1091         (mode . js2-mode)))
1092       ("shell"
1093        (or
1094         (mode . eshell-mode)
1095         (mode . shell-mode)
1096         (mode . term-mode)))
1097       ("programming"
1098        (or
1099         (mode . python-mode)
1100         (mode . c-mode)
1101         (mode . c++-mode)
1102         (mode . emacs-lisp-mode)
1103         (mode . scheme-mode)
1104         (mode . haskell-mode)
1105         (mode . lean-mode)))
1106       ("emacs"
1107        (or
1108         (name . "^\\*scratch\\*$")
1109         (name . "^\\*Messages\\*$"))))))
1110   (ibuffer-formats
1111    '((mark modified read-only locked " "
1112            (name 18 18 :left :elide)
1113            " "
1114            (size-h 9 -1 :right)
1115            " "
1116            (mode 16 16 :left :elide)
1117            " " filename-and-process)
1118      (mark " "
1119            (name 16 -1)
1120            " " filename)))
1121   :hook (ibuffer . (lambda () (ibuffer-switch-to-saved-filter-groups "default"))))
1122 #+end_src
1123
1124 *** Outline
1125
1126 #+begin_src emacs-lisp
1127 (use-feature outline
1128   :hook (prog-mode . outline-minor-mode)
1129   :bind
1130   (:map
1131    outline-minor-mode-map
1132    ("<s-tab>"  . outline-toggle-children)
1133    ("M-p"      . outline-previous-visible-heading)
1134    ("M-n"      . outline-next-visible-heading)
1135    :prefix-map a/outline-prefix-map
1136    :prefix "s-o"
1137    ("TAB" . outline-toggle-children)
1138    ("a"   . outline-hide-body)
1139    ("H"   . outline-hide-body)
1140    ("S"   . outline-show-all)
1141    ("h"   . outline-hide-subtree)
1142    ("s"   . outline-show-subtree)))
1143 #+end_src
1144
1145 *** Dired
1146
1147 #+begin_src emacs-lisp
1148 (use-feature ls-lisp
1149   :custom (ls-lisp-dirs-first t))
1150
1151 (use-feature dired
1152   :config
1153   (setq dired-listing-switches "-alh"
1154         ls-lisp-use-insert-directory-program nil)
1155
1156   ;; easily diff 2 marked files
1157   ;; https://oremacs.com/2017/03/18/dired-ediff/
1158   (defun dired-ediff-files ()
1159     (interactive)
1160     (require 'dired-aux)
1161     (defvar ediff-after-quit-hook-internal)
1162     (let ((files (dired-get-marked-files))
1163           (wnd (current-window-configuration)))
1164       (if (<= (length files) 2)
1165           (let ((file1 (car files))
1166                 (file2 (if (cdr files)
1167                            (cadr files)
1168                          (read-file-name
1169                           "file: "
1170                           (dired-dwim-target-directory)))))
1171             (if (file-newer-than-file-p file1 file2)
1172                 (ediff-files file2 file1)
1173               (ediff-files file1 file2))
1174             (add-hook 'ediff-after-quit-hook-internal
1175                       (lambda ()
1176                         (setq ediff-after-quit-hook-internal nil)
1177                         (set-window-configuration wnd))))
1178         (error "no more than 2 files should be marked"))))
1179   :bind (:map dired-mode-map
1180               ("b"  . dired-up-directory)
1181               ("e"  . dired-ediff-files)
1182               ("E"  . dired-toggle-read-only)
1183               ("\\" . dired-hide-details-mode)
1184               ("z"  . (lambda ()
1185                         (interactive)
1186                         (a/dired-start-process "zathura"))))
1187   :hook (dired-mode . dired-hide-details-mode))
1188 #+end_src
1189
1190 *** Help
1191
1192 #+begin_src emacs-lisp
1193 (use-feature help
1194   :config
1195   (temp-buffer-resize-mode)
1196   (setq help-window-select t))
1197 #+end_src
1198
1199 *** Tramp
1200
1201 #+begin_src emacs-lisp
1202 (use-feature tramp
1203   :config
1204   (add-to-list 'tramp-default-proxies-alist '(nil "\\`root\\'" "/ssh:%h:"))
1205   (add-to-list 'tramp-default-proxies-alist '("localhost" nil nil))
1206   (add-to-list 'tramp-default-proxies-alist
1207                (list (regexp-quote (system-name)) nil nil)))
1208 #+end_src
1209
1210 *** Dash
1211
1212 #+begin_src emacs-lisp
1213 (use-package dash
1214   :config (dash-enable-font-lock))
1215 #+end_src
1216
1217 * Editing
1218 :PROPERTIES:
1219 :CUSTOM_ID: editing
1220 :END:
1221
1222 ** =diff-hl=
1223
1224 Highlight uncommitted changes in the left fringe.
1225
1226 #+begin_src emacs-lisp
1227 (use-package diff-hl
1228   :config
1229   (setq diff-hl-draw-borders nil)
1230   (global-diff-hl-mode)
1231   :hook (magit-post-refresh . diff-hl-magit-post-refresh))
1232 #+end_src
1233
1234 ** ElDoc
1235
1236 Display Lisp objects at point in the echo area.
1237
1238 #+begin_src emacs-lisp
1239 (use-feature eldoc
1240   :when (version< "25" emacs-version)
1241   :config (global-eldoc-mode))
1242 #+end_src
1243
1244 ** paren
1245
1246 Highlight matching parens.
1247
1248 #+begin_src emacs-lisp
1249 (use-feature paren
1250   :config (show-paren-mode))
1251 #+end_src
1252
1253 ** simple (for column numbers)
1254
1255 #+begin_src emacs-lisp
1256 (use-feature simple
1257   :config (column-number-mode))
1258 #+end_src
1259
1260 ** =savehist=
1261
1262 Save minibuffer history.
1263
1264 #+begin_src emacs-lisp
1265 (use-feature savehist
1266   :config (savehist-mode))
1267 #+end_src
1268
1269 ** =saveplace=
1270
1271 Automatically save place in each file.
1272
1273 #+begin_src emacs-lisp
1274 (use-feature saveplace
1275   :when (version< "25" emacs-version)
1276   :config (save-place-mode))
1277 #+end_src
1278
1279 ** =prog-mode=
1280
1281 #+begin_src emacs-lisp
1282 (use-feature prog-mode
1283   :config (global-prettify-symbols-mode)
1284   (defun indicate-buffer-boundaries-left ()
1285     (setq indicate-buffer-boundaries 'left))
1286   (add-hook 'prog-mode-hook #'indicate-buffer-boundaries-left))
1287 #+end_src
1288
1289 ** =text-mode=
1290
1291 #+begin_src emacs-lisp
1292 (use-feature text-mode
1293   :hook ((text-mode . indicate-buffer-boundaries-left)
1294          (text-mode . abbrev-mode)))
1295 #+end_src
1296
1297 ** Company
1298
1299 #+begin_src emacs-lisp
1300 (use-package company
1301   :defer 1
1302   :bind
1303   (:map company-active-map
1304         ([tab]    . company-complete-common-or-cycle)
1305         ([escape] . company-abort))
1306   :custom
1307   (company-minimum-prefix-length 1)
1308   (company-selection-wrap-around t)
1309   (company-dabbrev-char-regexp "\\sw\\|\\s_\\|[-_]")
1310   (company-dabbrev-downcase nil)
1311   (company-dabbrev-ignore-case nil)
1312   :config
1313   (global-company-mode t))
1314 #+end_src
1315
1316 ** Flycheck
1317
1318 #+begin_src emacs-lisp
1319 (use-package flycheck
1320   :defer 3
1321   :hook (prog-mode . flycheck-mode)
1322   :bind
1323   (:map flycheck-mode-map
1324         ("M-P" . flycheck-previous-error)
1325         ("M-N" . flycheck-next-error))
1326   :config
1327   ;; Use the load-path from running Emacs when checking elisp files
1328   (setq flycheck-emacs-lisp-load-path 'inherit)
1329
1330   ;; Only flycheck when I actually save the buffer
1331   (setq flycheck-check-syntax-automatically '(mode-enabled save)))
1332
1333 ;; http://endlessparentheses.com/ispell-and-apostrophes.html
1334 (use-package ispell
1335   :defer 3
1336   :config
1337   ;; ’ can be part of a word
1338   (setq ispell-local-dictionary-alist
1339         `((nil "[[:alpha:]]" "[^[:alpha:]]"
1340                "['\x2019]" nil ("-B") nil utf-8)))
1341   ;; don't send ’ to the subprocess
1342   (defun endless/replace-apostrophe (args)
1343     (cons (replace-regexp-in-string
1344            "’" "'" (car args))
1345           (cdr args)))
1346   (advice-add #'ispell-send-string :filter-args
1347               #'endless/replace-apostrophe)
1348
1349   ;; convert ' back to ’ from the subprocess
1350   (defun endless/replace-quote (args)
1351     (if (not (derived-mode-p 'org-mode))
1352         args
1353       (cons (replace-regexp-in-string
1354              "'" "’" (car args))
1355             (cdr args))))
1356   (advice-add #'ispell-parse-output :filter-args
1357               #'endless/replace-quote))
1358 #+end_src
1359
1360 * Programming modes
1361 :PROPERTIES:
1362 :CUSTOM_ID: programming-modes
1363 :END:
1364
1365 ** Lisp
1366
1367 #+begin_src emacs-lisp
1368 (use-feature lisp-mode
1369   :config
1370   (add-hook 'emacs-lisp-mode-hook 'outline-minor-mode)
1371   (add-hook 'emacs-lisp-mode-hook 'reveal-mode)
1372   (defun indent-spaces-mode ()
1373     (setq indent-tabs-mode nil))
1374   (add-hook 'lisp-interaction-mode-hook #'indent-spaces-mode))
1375 #+end_src
1376
1377 ** [[http://alloytools.org][Alloy]] (with [[https://github.com/dwwmmn/alloy-mode][alloy-mode]])
1378
1379 #+begin_src emacs-lisp
1380 (use-package alloy-mode
1381   :straight (:host github :repo "dwwmmn/alloy-mode")
1382   :config (setq alloy-basic-offset 2))
1383 #+end_src
1384
1385 ** [[https://coq.inria.fr][Coq]] (with [[https://github.com/ProofGeneral/PG][Proof General]])
1386
1387 #+begin_src emacs-lisp
1388 (use-package proof-site
1389   :straight proof-general)
1390 #+end_src
1391
1392 ** [[https://leanprover.github.io][Lean]] (with [[https://github.com/leanprover/lean-mode][lean-mode]])
1393
1394 #+begin_src emacs-lisp
1395 (eval-when-compile (defvar lean-mode-map))
1396 (use-package lean-mode
1397   :defer 1
1398   :bind (:map lean-mode-map
1399               ("S-SPC" . company-complete))
1400   :config
1401   (require 'lean-input)
1402   (setq default-input-method "Lean"
1403         lean-input-tweak-all '(lean-input-compose
1404                                (lean-input-prepend "/")
1405                                (lean-input-nonempty))
1406         lean-input-user-translations '(("/" "/")))
1407   (lean-input-setup))
1408   #+end_src
1409
1410 ** Haskell
1411
1412 *** [[https://github.com/haskell/haskell-mode][haskell-mode]]
1413
1414 #+begin_src emacs-lisp
1415 (use-package haskell-mode
1416   :config
1417   (setq haskell-indentation-layout-offset 4
1418         haskell-indentation-left-offset 4
1419         flycheck-checker 'haskell-hlint
1420         flycheck-disabled-checkers '(haskell-stack-ghc haskell-ghc)))
1421 #+end_src
1422
1423 *** [[https://github.com/jyp/dante][dante]]
1424
1425 #+begin_src emacs-lisp
1426 (use-package dante
1427   :after haskell-mode
1428   :commands dante-mode
1429   :hook (haskell-mode . dante-mode))
1430 #+end_src
1431
1432 *** [[https://github.com/mpickering/hlint-refactor-mode][hlint-refactor]]
1433
1434 Emacs bindings for [[https://github.com/ndmitchell/hlint][hlint]]'s refactor option. This requires the refact
1435 executable from [[https://github.com/mpickering/apply-refact][apply-refact]].
1436
1437 #+begin_src emacs-lisp
1438 (use-package hlint-refactor
1439   :after haskell-mode
1440   :bind (:map hlint-refactor-mode-map
1441               ("C-c l b" . hlint-refactor-refactor-buffer)
1442               ("C-c l r" . hlint-refactor-refactor-at-point))
1443   :hook (haskell-mode . hlint-refactor-mode))
1444 #+end_src
1445
1446 *** [[https://github.com/flycheck/flycheck-haskell][flycheck-haskell]]
1447
1448 #+begin_src emacs-lisp
1449 (use-package flycheck-haskell
1450   :after haskell-mode)
1451 #+end_src
1452
1453 *** [[https://github.com/ndmitchell/hlint/blob/20e116a043f2073c57b17b24ae6364b5e433ba7e/data/hs-lint.el][hs-lint.el]]
1454 :PROPERTIES:
1455 :header-args+: :tangle lisp/hs-lint.el :mkdirp yes
1456 :END:
1457
1458 Currently using =flycheck-haskell= with the =haskell-hlint= checker
1459 instead.
1460
1461 #+begin_src emacs-lisp :tangle no
1462 ;;; hs-lint.el --- minor mode for HLint code checking
1463
1464 ;; Copyright 2009 (C) Alex Ott
1465 ;;
1466 ;; Author: Alex Ott <alexott@gmail.com>
1467 ;; Keywords: haskell, lint, HLint
1468 ;; Requirements:
1469 ;; Status: distributed under terms of GPL2 or above
1470
1471 ;; Typical message from HLint looks like:
1472 ;;
1473 ;; /Users/ott/projects/lang-exp/haskell/test.hs:52:1: Eta reduce
1474 ;; Found:
1475 ;;   count1 p l = length (filter p l)
1476 ;; Why not:
1477 ;;   count1 p = length . filter p
1478
1479
1480 (require 'compile)
1481
1482 (defgroup hs-lint nil
1483   "Run HLint as inferior of Emacs, parse error messages."
1484   :group 'tools
1485   :group 'haskell)
1486
1487 (defcustom hs-lint-command "hlint"
1488   "The default hs-lint command for \\[hlint]."
1489   :type 'string
1490   :group 'hs-lint)
1491
1492 (defcustom hs-lint-save-files t
1493   "Save modified files when run HLint or no (ask user)"
1494   :type 'boolean
1495   :group 'hs-lint)
1496
1497 (defcustom hs-lint-replace-with-suggestions nil
1498   "Replace user's code with suggested replacements"
1499   :type 'boolean
1500   :group 'hs-lint)
1501
1502 (defcustom hs-lint-replace-without-ask nil
1503   "Replace user's code with suggested replacements automatically"
1504   :type 'boolean
1505   :group 'hs-lint)
1506
1507 (defun hs-lint-process-setup ()
1508   "Setup compilation variables and buffer for `hlint'."
1509   (run-hooks 'hs-lint-setup-hook))
1510
1511 ;; regex for replace suggestions
1512 ;;
1513 ;; ^\(.*?\):\([0-9]+\):\([0-9]+\): .*
1514 ;; Found:
1515 ;; \s +\(.*\)
1516 ;; Why not:
1517 ;; \s +\(.*\)
1518
1519 (defvar hs-lint-regex
1520   "^\\(.*?\\):\\([0-9]+\\):\\([0-9]+\\): .*[\n\C-m]Found:[\n\C-m]\\s +\\(.*\\)[\n\C-m]Why not:[\n\C-m]\\s +\\(.*\\)[\n\C-m]"
1521   "Regex for HLint messages")
1522
1523 (defun make-short-string (str maxlen)
1524   (if (< (length str) maxlen)
1525       str
1526     (concat (substring str 0 (- maxlen 3)) "...")))
1527
1528 (defun hs-lint-replace-suggestions ()
1529   "Perform actual replacement of suggestions"
1530   (goto-char (point-min))
1531   (while (re-search-forward hs-lint-regex nil t)
1532     (let* ((fname (match-string 1))
1533           (fline (string-to-number (match-string 2)))
1534           (old-code (match-string 4))
1535           (new-code (match-string 5))
1536           (msg (concat "Replace '" (make-short-string old-code 30)
1537                        "' with '" (make-short-string new-code 30) "'"))
1538           (bline 0)
1539           (eline 0)
1540           (spos 0)
1541           (new-old-code ""))
1542       (save-excursion
1543         (switch-to-buffer (get-file-buffer fname))
1544         (goto-char (point-min))
1545         (forward-line (1- fline))
1546         (beginning-of-line)
1547         (setf bline (point))
1548         (when (or hs-lint-replace-without-ask
1549                   (yes-or-no-p msg))
1550           (end-of-line)
1551           (setf eline (point))
1552           (beginning-of-line)
1553           (setf old-code (regexp-quote old-code))
1554           (while (string-match "\\\\ " old-code spos)
1555             (setf new-old-code (concat new-old-code
1556                                  (substring old-code spos (match-beginning 0))
1557                                  "\\ *"))
1558             (setf spos (match-end 0)))
1559           (setf new-old-code (concat new-old-code (substring old-code spos)))
1560           (remove-text-properties bline eline '(composition nil))
1561           (when (re-search-forward new-old-code eline t)
1562             (replace-match new-code nil t)))))))
1563
1564 (defun hs-lint-finish-hook (buf msg)
1565   "Function, that is executed at the end of HLint execution"
1566   (if hs-lint-replace-with-suggestions
1567       (hs-lint-replace-suggestions)
1568       (next-error 1 t)))
1569
1570 (define-compilation-mode hs-lint-mode "HLint"
1571   "Mode for check Haskell source code."
1572   (set (make-local-variable 'compilation-process-setup-function)
1573        'hs-lint-process-setup)
1574   (set (make-local-variable 'compilation-disable-input) t)
1575   (set (make-local-variable 'compilation-scroll-output) nil)
1576   (set (make-local-variable 'compilation-finish-functions)
1577        (list 'hs-lint-finish-hook))
1578   )
1579
1580 (defun hs-lint ()
1581   "Run HLint for current buffer with haskell source"
1582   (interactive)
1583   (save-some-buffers hs-lint-save-files)
1584   (compilation-start (concat hs-lint-command " \"" buffer-file-name "\"")
1585                      'hs-lint-mode))
1586
1587 (provide 'hs-lint)
1588 ;;; hs-lint.el ends here
1589 #+end_src
1590
1591 #+begin_src emacs-lisp :tangle no
1592 (use-package hs-lint
1593   :load-path "lisp/"
1594   :bind (:map haskell-mode-map
1595               ("C-c l l" . hs-lint)))
1596 #+end_src
1597
1598 ** Web
1599
1600 *** SGML and HTML
1601
1602 #+begin_src emacs-lisp
1603 (use-package sgml-mode
1604   :config
1605   (setq sgml-basic-offset 2))
1606 #+end_src
1607
1608 *** CSS and SCSS
1609
1610 #+begin_src emacs-lisp
1611 (use-package css-mode
1612   :config
1613   (setq css-indent-offset 2))
1614 #+end_src
1615
1616 *** Web mode
1617
1618 #+begin_src emacs-lisp
1619 (use-package web-mode
1620   :mode "\\.html\\'"
1621   :config
1622   (a/setq-every 2
1623     web-mode-code-indent-offset
1624     web-mode-css-indent-offset
1625     web-mode-markup-indent-offset))
1626 #+end_src
1627
1628 *** Emmet mode
1629
1630 #+begin_src emacs-lisp
1631 (use-package emmet-mode
1632   :after (:any web-mode css-mode sgml-mode)
1633   :bind* (("C-)" . emmet-next-edit-point)
1634           ("C-(" . emmet-prev-edit-point))
1635   :config
1636   (unbind-key "C-j" emmet-mode-keymap)
1637   (setq emmet-move-cursor-between-quotes t)
1638   :hook (web-mode css-mode html-mode sgml-mode))
1639 #+end_src
1640
1641 ** COMMENT Java
1642
1643 *** meghanada
1644
1645 #+begin_src emacs-lisp
1646 (use-package meghanada
1647   :bind
1648   (:map meghanada-mode-map
1649         (("C-M-o" . meghanada-optimize-import)
1650          ("C-M-t" . meghanada-import-all)))
1651   :hook (java-mode . meghanada-mode))
1652 #+end_src
1653
1654 *** lsp-java
1655
1656 #+begin_comment
1657 dependencies:
1658
1659 ace-window
1660 avy
1661 bui
1662 company-lsp
1663 dap-mode
1664 lsp-java
1665 lsp-mode
1666 lsp-ui
1667 pfuture
1668 tree-mode
1669 treemacs
1670 #+end_comment
1671
1672 #+begin_src emacs-lisp
1673 (use-package treemacs
1674   :config (setq treemacs-never-persist t))
1675
1676 (use-package yasnippet
1677   :config
1678   ;; (yas-global-mode)
1679   )
1680
1681 (use-package lsp-mode
1682   :init (setq lsp-eldoc-render-all nil
1683               lsp-highlight-symbol-at-point nil)
1684   )
1685
1686 (use-package hydra)
1687
1688 (use-package company-lsp
1689   :after  company
1690   :config
1691   (setq company-lsp-cache-candidates t
1692         company-lsp-async t))
1693
1694 (use-package lsp-ui
1695   :config
1696   (setq lsp-ui-sideline-update-mode 'point))
1697
1698 (use-package lsp-java
1699   :config
1700   (add-hook 'java-mode-hook
1701             (lambda ()
1702               (setq-local company-backends (list 'company-lsp))))
1703
1704   (add-hook 'java-mode-hook 'lsp-java-enable)
1705   (add-hook 'java-mode-hook 'flycheck-mode)
1706   (add-hook 'java-mode-hook 'company-mode)
1707   (add-hook 'java-mode-hook 'lsp-ui-mode))
1708
1709 (use-package dap-mode
1710   :after lsp-mode
1711   :config
1712   (dap-mode t)
1713   (dap-ui-mode t))
1714
1715 (use-package dap-java
1716   :after (lsp-java))
1717
1718 (use-package lsp-java-treemacs
1719   :after (treemacs))
1720 #+end_src
1721
1722 ** geiser
1723
1724 #+begin_src emacs-lisp
1725 (use-package geiser)
1726
1727 (use-feature geiser-guile
1728   :config
1729   (setq geiser-guile-load-path "~/src/git/guix"))
1730 #+end_src
1731
1732 ** guix
1733
1734 #+begin_src emacs-lisp
1735 (use-package guix)
1736 #+end_src
1737
1738 * Emacs enhancements
1739 :PROPERTIES:
1740 :CUSTOM_ID: emacs-enhancements
1741 :END:
1742
1743 ** man
1744
1745 #+begin_src emacs-lisp
1746 (use-feature man
1747   :config (setq Man-width 80))
1748 #+end_src
1749
1750 ** [[https://github.com/justbur/emacs-which-key][which-key]]
1751
1752 #+begin_quote
1753 Emacs package that displays available keybindings in popup
1754 #+end_quote
1755
1756 #+begin_src emacs-lisp
1757 (use-package which-key
1758   :defer 1
1759   :config
1760   (which-key-add-key-based-replacements
1761     ;; prefixes for global prefixes and minor modes
1762     "C-c @"   "outline"
1763     "C-c !"   "flycheck"
1764     "C-c 8"   "typo"
1765     "C-c 8 -" "typo/dashes"
1766     "C-c 8 <" "typo/left-brackets"
1767     "C-c 8 >" "typo/right-brackets"
1768     "C-x 8"   "unicode"
1769     "C-x a"   "abbrev/expand"
1770     "C-x r"   "rectangle/register/bookmark"
1771     "C-x v"   "version control"
1772     ;; prefixes for my personal bindings
1773     "C-c a"   "applications"
1774     "C-c a s" "shells"
1775     "C-c P"   "package-management"
1776     "C-c P e" "package-management/epkg"
1777     "C-c P s" "package-management/straight.el"
1778     "C-c c"   "compile-and-comments"
1779     "C-c e"   "eval"
1780     "C-c f"   "files"
1781     "C-c F"   "frames"
1782     "C-S-h"   "help(ful)"
1783     "C-c m"   "multiple-cursors"
1784     "C-c p"   "projectile"
1785     "C-c p s" "projectile/search"
1786     "C-c p x" "projectile/execute"
1787     "C-c p 4" "projectile/other-window"
1788     "C-c q"   "boxquote"
1789     "s-g"     "magit"
1790     "s-o"     "outline"
1791     "s-t"     "themes")
1792
1793   ;; prefixes for major modes
1794   (which-key-add-major-mode-key-based-replacements 'message-mode
1795     "C-c f"   "footnote")
1796   (which-key-add-major-mode-key-based-replacements 'org-mode
1797     "C-c C-v" "org-babel")
1798   (which-key-add-major-mode-key-based-replacements 'web-mode
1799     "C-c C-a" "web/attributes"
1800     "C-c C-b" "web/blocks"
1801     "C-c C-d" "web/dom"
1802     "C-c C-e" "web/element"
1803     "C-c C-t" "web/tags")
1804
1805   (which-key-mode))
1806 #+end_src
1807
1808 ** theme
1809
1810 #+begin_src emacs-lisp
1811 (add-to-list 'custom-theme-load-path "~/.emacs.d/lisp")
1812 (load-theme 'tangomod t)
1813 #+end_src
1814
1815 ** smart-mode-line
1816
1817 #+begin_src emacs-lisp
1818 (use-package smart-mode-line
1819   :commands (sml/apply-theme)
1820   :demand
1821   :config
1822   (sml/setup))
1823 #+end_src
1824
1825 ** doom-themes
1826
1827 #+begin_src emacs-lisp
1828 (use-package doom-themes)
1829 #+end_src
1830
1831 ** theme helper functions
1832
1833 #+begin_src emacs-lisp
1834 (defun a/lights-on ()
1835   "Enable my favourite light theme."
1836   (interactive)
1837   (mapc #'disable-theme custom-enabled-themes)
1838   (load-theme 'tangomod t)
1839   (sml/apply-theme 'automatic))
1840
1841 (defun a/lights-off ()
1842   "Go dark."
1843   (interactive)
1844   (mapc #'disable-theme custom-enabled-themes)
1845   (load-theme 'doom-tomorrow-night t)
1846   (sml/apply-theme 'automatic))
1847
1848 (bind-keys
1849  ("s-t d" . a/lights-off)
1850  ("s-t l" . a/lights-on))
1851 #+end_src
1852
1853 ** [[https://github.com/bbatsov/crux][crux]]
1854
1855 #+begin_src emacs-lisp
1856 (use-package crux                       ; results in Waiting for git... [2 times]
1857   :defer 1
1858   :bind (("C-c b k" . crux-kill-other-buffers)
1859          ("C-c d"   . crux-duplicate-current-line-or-region)
1860          ("C-c D"   . crux-duplicate-and-comment-current-line-or-region)
1861          ("C-c f c" . crux-copy-file-preserve-attributes)
1862          ("C-c f d" . crux-delete-file-and-buffer)
1863          ("C-c f r" . crux-rename-file-and-buffer)
1864          ("C-c j"   . crux-top-join-line)
1865          ("C-S-j"   . crux-top-join-line)))
1866 #+end_src
1867
1868 ** [[https://github.com/alezost/mwim.el][mwim]]
1869
1870 #+begin_src emacs-lisp
1871 (use-package mwim
1872   :bind (("C-a"    . mwim-beginning-of-code-or-line)
1873          ("C-e"    . mwim-end-of-code-or-line)
1874          ("<home>" . mwim-beginning-of-line-or-code)
1875          ("<end>"  . mwim-end-of-line-or-code)))
1876 #+end_src
1877
1878 ** projectile
1879
1880 #+begin_src emacs-lisp
1881 (use-package projectile
1882   :bind-keymap ("C-c p" . projectile-command-map)
1883   :config
1884   (projectile-mode)
1885
1886   (defun my-projectile-invalidate-cache (&rest _args)
1887     ;; ignore the args to `magit-checkout'
1888     (projectile-invalidate-cache nil))
1889
1890   (eval-after-load 'magit-branch
1891     '(progn
1892        (advice-add 'magit-checkout
1893                    :after #'my-projectile-invalidate-cache)
1894        (advice-add 'magit-branch-and-checkout
1895                    :after #'my-projectile-invalidate-cache)))
1896   :custom (projectile-completion-system 'ivy))
1897 #+end_src
1898
1899 ** [[https://github.com/Wilfred/helpful][helpful]]
1900
1901 #+begin_src emacs-lisp
1902 (use-package helpful
1903   :defer 1
1904   :bind
1905   (("C-S-h c" . helpful-command)
1906    ("C-S-h f" . helpful-callable)        ; helpful-function
1907    ("C-S-h v" . helpful-variable)
1908    ("C-S-h k" . helpful-key)
1909    ("C-S-h p" . helpful-at-point)))
1910 #+end_src
1911
1912 ** [[https://github.com/EricCrosson/unkillable-scratch][unkillable-scratch]]
1913
1914 Make =*scratch*= and =*Messages*= unkillable.
1915
1916 #+begin_src emacs-lisp
1917 (use-package unkillable-scratch
1918   :defer 3
1919   :config
1920   (unkillable-scratch 1)
1921   :custom
1922   (unkillable-scratch-behavior 'do-nothing)
1923   (unkillable-buffers '("^\\*scratch\\*$" "^\\*Messages\\*$")))
1924 #+end_src
1925
1926 ** [[https://github.com/davep/boxquote.el][boxquote.el]]
1927
1928 #+begin_example
1929 ,----
1930 | make pretty boxed quotes like this
1931 `----
1932 #+end_example
1933
1934 #+begin_src emacs-lisp
1935 (use-package boxquote
1936   :defer 3
1937   :bind
1938   (:prefix-map a/boxquote-prefix-map
1939    :prefix "C-c q"
1940    ("b"   . boxquote-buffer)
1941    ("B"   . boxquote-insert-buffer)
1942    ("d"   . boxquote-defun)
1943    ("F"   . boxquote-insert-file)
1944    ("hf"  . boxquote-describe-function)
1945    ("hk"  . boxquote-describe-key)
1946    ("hv"  . boxquote-describe-variable)
1947    ("hw"  . boxquote-where-is)
1948    ("k"   . boxquote-kill)
1949    ("p"   . boxquote-paragraph)
1950    ("q"   . boxquote-boxquote)
1951    ("r"   . boxquote-region)
1952    ("s"   . boxquote-shell-command)
1953    ("t"   . boxquote-text)
1954    ("T"   . boxquote-title)
1955    ("u"   . boxquote-unbox)
1956    ("U"   . boxquote-unbox-region)
1957    ("y"   . boxquote-yank)
1958    ("M-q" . boxquote-fill-paragraph)
1959    ("M-w" . boxquote-kill-ring-save)))
1960 #+end_src
1961
1962 Also see [[https://www.emacswiki.org/emacs/rebox2][rebox2]].
1963
1964 ** orgalist
1965
1966 #+begin_src emacs-lisp
1967 (use-package orgalist
1968   :after message
1969   :hook (message-mode . orgalist-mode))
1970 #+end_src
1971
1972 ** typo.el
1973
1974 #+begin_src emacs-lisp
1975 (use-package typo
1976   :defer 2
1977   :config
1978   (typo-global-mode 1)
1979   :hook (text-mode . typo-mode))
1980 #+end_src
1981
1982 ** hl-todo
1983
1984 #+begin_src emacs-lisp
1985 (use-package hl-todo
1986   :defer 4
1987   :config
1988   (global-hl-todo-mode))
1989 #+end_src
1990
1991 ** shrink-path
1992
1993 #+begin_src emacs-lisp
1994 (use-package shrink-path
1995   :defer 2
1996   :config
1997   (setq eshell-prompt-regexp "\\(.*\n\\)*λ "
1998         eshell-prompt-function #'+eshell/prompt)
1999
2000   (defun +eshell/prompt ()
2001     (let ((base/dir (shrink-path-prompt default-directory)))
2002       (concat (propertize (car base/dir)
2003                           'face 'font-lock-comment-face)
2004               (propertize (cdr base/dir)
2005                           'face 'font-lock-constant-face)
2006               (propertize (+eshell--current-git-branch)
2007                           'face 'font-lock-function-name-face)
2008               "\n"
2009               (propertize "λ" 'face 'eshell-prompt-face)
2010               ;; needed for the input text to not have prompt face
2011               (propertize " " 'face 'default))))
2012
2013   (defun +eshell--current-git-branch ()
2014     (let ((branch (car (loop for match in (split-string (shell-command-to-string "git branch") "\n")
2015                              when (string-match "^\*" match)
2016                              collect match))))
2017       (if (not (eq branch nil))
2018           (concat " " (substring branch 2))
2019         ""))))
2020 #+end_src
2021
2022 ** [[https://github.com/peterwvj/eshell-up][eshell-up]]
2023
2024 #+begin_src emacs-lisp
2025 (use-package eshell-up
2026   :commands eshell-up
2027   :after eshell)
2028 #+end_src
2029
2030 ** multi-term
2031
2032 #+begin_src emacs-lisp
2033 (use-package multi-term
2034   :defer 1
2035   :bind (("C-c a s m" . multi-term-dedicated-toggle)
2036          :map term-mode-map
2037          ("C-c C-j" . term-char-mode)
2038          :map term-raw-map
2039          ("C-c C-j" . term-line-mode))
2040   :config
2041   (setq multi-term-program "/bin/screen"
2042         ;; TODO: add separate bindings for connecting to existing
2043         ;; session vs. always creating a new one
2044         multi-term-dedicated-select-after-open-p t
2045         multi-term-dedicated-window-height 20
2046         multi-term-dedicated-max-window-height 30
2047         term-bind-key-alist
2048         '(("C-c C-c" . term-interrupt-subjob)
2049           ("C-c C-e" . term-send-esc)
2050           ("C-k" . kill-line)
2051           ("C-y" . term-paste)
2052           ("M-f" . term-send-forward-word)
2053           ("M-b" . term-send-backward-word)
2054           ("M-p" . term-send-up)
2055           ("M-n" . term-send-down)
2056           ("<C-backspace>" . term-send-backward-kill-word)
2057           ("<M-DEL>" . term-send-backward-kill-word)
2058           ("M-d" . term-send-delete-word)
2059           ("M-," . term-send-raw)
2060           ("M-." . comint-dynamic-complete))
2061         term-unbind-key-alist
2062         '("C-z" "C-x" "C-c" "C-h" "C-y" "<ESC>")))
2063 #+end_src
2064
2065 ** page-break-lines
2066
2067 #+begin_src emacs-lisp
2068 (use-package page-break-lines
2069   :config
2070   (global-page-break-lines-mode))
2071 #+end_src
2072
2073 ** expand-region
2074
2075 #+begin_src emacs-lisp
2076 (use-package expand-region
2077   :bind ("C-=" . er/expand-region))
2078 #+end_src
2079
2080 ** multiple-cursors
2081
2082 #+begin_src emacs-lisp
2083 (use-package multiple-cursors
2084   :bind
2085   (("C-S-<mouse-1>" . mc/add-cursor-on-click)
2086    (:prefix-map a/mc-prefix-map
2087                :prefix "C-c m"
2088                ("c" . mc/edit-lines)
2089                ("n" . mc/mark-next-like-this)
2090                ("p" . mc/mark-previous-like-this)
2091                ("a" . mc/mark-all-like-this))))
2092 #+end_src
2093
2094 * Email
2095 :PROPERTIES:
2096 :CUSTOM_ID: email
2097 :END:
2098
2099 #+begin_src emacs-lisp
2100 (defvar a/maildir (expand-file-name "~/mail/"))
2101 (with-eval-after-load 'recentf
2102   (add-to-list 'recentf-exclude a/maildir))
2103 #+end_src
2104
2105 ** Gnus
2106
2107 #+begin_src emacs-lisp
2108 (setq
2109  a/gnus-init-file  (no-littering-expand-etc-file-name "gnus")
2110  mail-user-agent   'gnus-user-agent
2111  read-mail-command 'gnus)
2112
2113 (use-feature gnus
2114   :bind (("s-m"   . gnus)
2115          ("s-M"   . gnus-unplugged))
2116   :init
2117   (setq
2118    gnus-select-method '(nnnil "")
2119    gnus-secondary-select-methods
2120    '((nnimap "amin"
2121             (nnimap-stream plain)
2122             (nnimap-address "127.0.0.1")
2123             (nnimap-server-port 143)
2124             (nnimap-authenticator plain)
2125             (nnimap-user "amin@aminb.org"))
2126      (nnimap "uwaterloo"
2127              (nnimap-stream plain)
2128              (nnimap-address "127.0.0.1")
2129              (nnimap-server-port 143)
2130              (nnimap-authenticator plain)
2131              (nnimap-user "abandali@uwaterloo.ca")))
2132    gnus-message-archive-group "nnimap+amin:Sent"
2133    gnus-parameters
2134    '(("gnu.*"
2135       (gcc-self . t)))
2136    gnus-large-newsgroup  50
2137    gnus-home-directory   (no-littering-expand-var-file-name "gnus/")
2138    gnus-directory        (concat gnus-home-directory "news/")
2139    message-directory     (concat gnus-home-directory "mail/")
2140    nndraft-directory     (concat gnus-home-directory "drafts/")
2141    gnus-save-newsrc-file nil
2142    gnus-read-newsrc-file nil
2143    gnus-interactive-exit nil
2144    gnus-gcc-mark-as-read t))
2145
2146 (use-feature gnus-art
2147   :config
2148   (setq
2149    gnus-visible-headers
2150    (concat gnus-visible-headers "\\|^List-Id:\\|^X-RT-Originator:\\|^User-Agent:")
2151    gnus-sorted-header-list
2152    '("^From:" "^Subject:" "^Summary:" "^Keywords:"
2153      "^Followup-To:" "^To:" "^Cc:" "X-RT-Originator"
2154      "^Newsgroups:" "List-Id:" "^Organization:"
2155      "^User-Agent:" "^Date:")
2156   ;; local-lapsed article dates
2157   ;; from https://www.emacswiki.org/emacs/GnusFormatting#toc11
2158   gnus-article-date-headers '(user-defined)
2159   gnus-article-time-format
2160   (lambda (time)
2161     (let* ((date (format-time-string "%a, %d %b %Y %T %z" time))
2162            (local (article-make-date-line date 'local))
2163            (combined-lapsed (article-make-date-line date
2164                                                     'combined-lapsed))
2165            (lapsed (progn
2166                      (string-match " (.+" combined-lapsed)
2167                      (match-string 0 combined-lapsed))))
2168       (concat local lapsed))))
2169   (bind-keys
2170    :map gnus-article-mode-map
2171    ("r"   . gnus-article-reply-with-original)
2172    ("R"   . gnus-article-wide-reply-with-original)
2173    ("M-L" . org-store-link)))
2174
2175 (use-feature gnus-sum
2176   :bind (:map gnus-summary-mode-map
2177               :prefix-map a/gnus-summary-prefix-map
2178               :prefix "v"
2179               ("r" . gnus-summary-reply)
2180               ("w" . gnus-summary-wide-reply)
2181               ("v" . gnus-summary-show-raw-article))
2182   :config
2183   (bind-keys
2184    :map gnus-summary-mode-map
2185    ("r"   . gnus-summary-reply-with-original)
2186    ("R"   . gnus-summary-wide-reply-with-original)
2187    ("M-L" . org-store-link))
2188   :hook (gnus-summary-mode . a/no-mouse-autoselect-window))
2189
2190 (use-feature gnus-msg
2191   :config
2192   (setq gnus-posting-styles
2193         '((".*"
2194            (address "amin@aminb.org")
2195            (body "\nBest,\namin\n")
2196            (eval (setq a/message-cite-say-hi t)))
2197           ("gnu.*"
2198            (address "bandali@gnu.org"))
2199           ((header "subject" "ThankCRM")
2200            (to "webmasters-comment@gnu.org")
2201            (body "\nAdded  to 2018supporters.html.\n\nMoving to campaigns.\n\n-amin\n")
2202            (eval (setq a/message-cite-say-hi nil)))
2203           ("nnimap\\+uwaterloo:.*"
2204            (address "abandali@uwaterloo.ca")
2205            (gcc "\"nnimap+uwaterloo:Sent Items\"")))))
2206
2207 (use-feature gnus-topic
2208   :hook (gnus-group-mode . gnus-topic-mode))
2209
2210 (use-feature gnus-agent
2211   :config
2212   (setq gnus-agent-synchronize-flags 'ask)
2213   :hook (gnus-group-mode . gnus-agent-mode))
2214
2215 (use-feature gnus-group
2216   :config
2217   (setq gnus-permanently-visible-groups "\\((INBOX\\|gnu$\\)"))
2218
2219 (use-feature mm-decode
2220   :config
2221   (setq mm-discouraged-alternatives '("text/html" "text/richtext")))
2222 #+end_src
2223
2224 ** sendmail
2225
2226 #+begin_src emacs-lisp
2227 (use-feature sendmail
2228   :config
2229   (setq sendmail-program "/usr/bin/msmtp"
2230         ;; message-sendmail-extra-arguments '("-v" "-d")
2231         mail-specify-envelope-from t
2232         mail-envelope-from 'header))
2233 #+end_src
2234
2235 ** message
2236
2237 #+begin_src emacs-lisp
2238 (use-feature message
2239   :config
2240   (defconst a/message-cite-style-format "On %Y-%m-%d %l:%M %p, %N wrote:")
2241   (defconst message-cite-style-bandali
2242     '((message-cite-function  'message-cite-original)
2243       (message-citation-line-function  'message-insert-formatted-citation-line)
2244       (message-cite-reply-position 'traditional)
2245       (message-yank-prefix  "> ")
2246       (message-yank-cited-prefix  ">")
2247       (message-yank-empty-prefix  ">")
2248       (message-citation-line-format
2249        (if a/message-cite-say-hi
2250            (concat "Hi %F,\n\n" a/message-cite-style-format)
2251          a/message-cite-style-format)))
2252     "Citation style based on Mozilla Thunderbird's. Use with message-cite-style.")
2253   (setq message-cite-style 'message-cite-style-bandali
2254         message-kill-buffer-on-exit t
2255         message-send-mail-function 'message-send-mail-with-sendmail
2256         message-sendmail-envelope-from 'header
2257         message-dont-reply-to-names
2258         "\\(\\(.*@aminb\\.org\\)\\|\\(amin@bandali\\.me\\)\\|\\(\\(aminb?\\|mab\\|bandali\\)@gnu\\.org\\)\\|\\(\\(m\\|a\\(min\\.\\)?\\)bandali@uwaterloo\\.ca\\)\\)"
2259         message-user-fqdn "aminb.org")
2260   :hook (;; (message-setup . mml-secure-message-sign-pgpmime)
2261          (message-mode . flyspell-mode)
2262          (message-mode . (lambda ()
2263                            ;; (setq fill-column 65
2264                            ;;       message-fill-column 65)
2265                            (make-local-variable 'company-idle-delay)
2266                            (setq company-idle-delay 0.2))))
2267   ;; :custom-face
2268   ;; (message-header-subject ((t (:foreground "#111" :weight semi-bold))))
2269   ;; (message-header-to      ((t (:foreground "#111" :weight normal))))
2270   ;; (message-header-cc      ((t (:foreground "#333" :weight normal))))
2271   )
2272
2273 (with-eval-after-load 'mml-sec
2274   (setq mml-secure-openpgp-encrypt-to-self t
2275         mml-secure-openpgp-sign-with-sender t))
2276 #+end_src
2277
2278 ** footnote
2279
2280 Convenient footnotes in =message-mode=.
2281
2282 #+begin_src emacs-lisp
2283 (use-feature footnote
2284   :after message
2285   :bind
2286   (:map message-mode-map
2287         :prefix-map a/footnote-prefix-map
2288         :prefix "C-c f"
2289         ("a" . footnote-add-footnote)
2290         ("b" . footnote-back-to-message)
2291         ("c" . footnote-cycle-style)
2292         ("d" . footnote-delete-footnote)
2293         ("g" . footnote-goto-footnote)
2294         ("r" . footnote-renumber-footnotes)
2295         ("s" . footnote-set-style))
2296   :config
2297   (setq footnote-start-tag ""
2298         footnote-end-tag   ""
2299         footnote-style     'unicode))
2300 #+end_src
2301
2302 ** ebdb
2303
2304 #+begin_src emacs-lisp
2305 (use-package ebdb
2306   :straight (:host github :repo "girzel/ebdb")
2307   :after gnus
2308   :bind (:map gnus-group-mode-map ("e" . ebdb))
2309   :config
2310   (setq ebdb-sources (no-littering-expand-var-file-name "ebdb"))
2311   (with-eval-after-load 'swiper
2312     (add-to-list 'swiper-font-lock-exclude 'ebdb-mode t)))
2313
2314 (use-feature ebdb-com
2315   :after ebdb)
2316
2317 ;; (use-package ebdb-complete
2318 ;;   :after ebdb
2319 ;;   :config
2320 ;;   (ebdb-complete-enable))
2321
2322 (use-package company-ebdb
2323   :after (:all company message)
2324   :config
2325   (defun company-ebdb--post-complete (_) nil)
2326   :hook
2327   (message-mode . (lambda ()
2328                     (add-to-list (make-local-variable 'company-backends)
2329                                  'company-ebdb))))
2330
2331 (use-feature ebdb-gnus
2332   :after ebdb
2333   :demand
2334   :custom
2335   (ebdb-gnus-window-configuration
2336    '(article
2337      (vertical 1.0
2338                (summary 0.25 point)
2339                (horizontal 1.0
2340                            (article 1.0)
2341                            (ebdb-gnus 0.3))))))
2342
2343 (use-feature ebdb-mua
2344   :after ebdb
2345   :demand
2346   ;; :custom (ebdb-mua-pop-up nil)
2347   )
2348
2349 ;; (use-package ebdb-message
2350 ;;   :after ebdb)
2351
2352
2353 ;; (use-package ebdb-vcard
2354 ;;   :after ebdb)
2355 #+end_src
2356
2357 ** COMMENT message-x
2358
2359 #+begin_src emacs-lisp
2360 (use-package message-x
2361   :custom
2362   (message-x-completion-alist
2363    (quote
2364     (("\\([rR]esent-\\|[rR]eply-\\)?[tT]o:\\|[bB]?[cC][cC]:" . gnus-harvest-find-address)
2365      ((if
2366           (boundp
2367            (quote message-newgroups-header-regexp))
2368           message-newgroups-header-regexp message-newsgroups-header-regexp)
2369       . message-expand-group)))))
2370 #+end_src
2371
2372 ** COMMENT gnus-harvest
2373
2374 #+begin_src emacs-lisp
2375 (use-package gnus-harvest
2376   :commands gnus-harvest-install
2377   :demand t
2378   :config
2379   (if (featurep 'message-x)
2380       (gnus-harvest-install 'message-x)
2381     (gnus-harvest-install)))
2382 #+end_src
2383
2384 * Blogging
2385 :PROPERTIES:
2386 :CUSTOM_ID: blogging
2387 :END:
2388
2389 ** [[https://ox-hugo.scripter.co][ox-hugo]]
2390
2391 #+begin_src emacs-lisp
2392 (use-package ox-hugo
2393   :after ox)
2394
2395 (use-feature ox-hugo-auto-export
2396   :after ox-hugo)
2397 #+end_src
2398
2399 * Post initialization
2400 :PROPERTIES:
2401 :CUSTOM_ID: post-initialization
2402 :END:
2403
2404 Display how long it took to load the init file.
2405
2406 #+begin_src emacs-lisp
2407 (message "Loading %s...done (%.3fs)" user-init-file
2408          (float-time (time-subtract (current-time)
2409                                     a/before-user-init-time)))
2410 #+end_src
2411
2412 * Footer
2413 :PROPERTIES:
2414 :CUSTOM_ID: footer
2415 :END:
2416
2417 #+begin_src emacs-lisp :comments none
2418 ;;; init.el ends here
2419 #+end_src
2420
2421 * COMMENT Local Variables                                           :ARCHIVE:
2422 # Local Variables:
2423 # eval: (add-hook 'after-save-hook #'a/async-babel-tangle 'append 'local)
2424 # eval: (when (featurep 'typo (typo-mode -1)))
2425 # End: