aboutsummaryrefslogtreecommitdiff
path: root/Emacs/.config/emacs/config.org
blob: 1b4620c214179e20b4790853cbc3003e62a4c937 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
#+TITLE: Emacs configuration
#+AUTHOR: Oreodave
#+DESCRIPTION: My new Emacs configuration

* Initial
** Setup straight
Bootstrap of straight (from github)
#+BEGIN_SRC emacs-lisp
(defvar bootstrap-version)
(let ((bootstrap-file
       (expand-file-name "straight/repos/straight.el/bootstrap.el" user-emacs-directory))
      (bootstrap-version 5))
  (unless (file-exists-p bootstrap-file)
    (with-current-buffer
        (url-retrieve-synchronously
         "https://raw.githubusercontent.com/raxod502/straight.el/develop/install.el"
         'silent 'inhibit-cookies)
      (goto-char (point-max))
      (eval-print-last-sexp)))
  (load bootstrap-file nil 'nomessage))
#+END_SRC
** Setup use package
Straight clone use-package and state that all use-package statements implicity use straight.
#+BEGIN_SRC emacs-lisp
(straight-use-package 'use-package)
(setq straight-use-package-by-default t)
#+END_SRC
** Setup alpha and yes-or-no-p
This just sets the alpha to 85% and all yes or no questions to single letter responses.
#+BEGIN_SRC emacs-lisp
(add-to-list 'default-frame-alist '(alpha . 85))
(fset 'yes-or-no-p 'y-or-n-p)
#+END_SRC
** Hs Minor mode
Turn on hs minor mode for all prog-mode.
#+BEGIN_SRC emacs-lisp
(add-hook 'prog-mode-hook #'hs-minor-mode)
#+END_SRC
** Set backup directory
Set the backup directory to =user-emacs-directory=/saves so I don't get those annoying '~' files.
#+BEGIN_SRC emacs-lisp
(setq backup-directory-alist `(("." . "~/.config/emacs/saves")))
#+END_SRC
** Turn off the bars
Turn off all the bars, don't need them anymore!
#+BEGIN_SRC emacs-lisp
(tool-bar-mode -1)
(scroll-bar-mode -1)
(menu-bar-mode -1)
#+END_SRC
** Themes
Load my custom "Grayscale" theme (look at [[file:Grayscale-theme.el][this file]]).
#+BEGIN_SRC emacs-lisp
(load-theme 'Grayscale t)
#+END_SRC
** Turn off startup buffer
#+BEGIN_SRC emacs-lisp
(setq inhibit-startup-screen t)
#+END_SRC
* Emacs Mode-line
Firstly, declare a variable for the number of spaces between each module in the modeline.
#+BEGIN_SRC emacs-lisp
(defconst +modeline/sep-spaces 4 "Number of spaces separating modules.")
#+END_SRC

Then, declare a list of reserved characters for which the previously declared seperator won't be applied when placed at the end of a module string.
#+BEGIN_SRC emacs-lisp
(defconst +modeline/reserved-chars (list "[" "(") 
        "Characters that, when at the end of a module string, won't have the separator applied to them.")
#+END_SRC

Now declare a function that applies the separator with respect to the reserved characters to any one string.
#+BEGIN_SRC emacs-lisp
(defun +modeline/handle-string (STR)
  (condition-case nil
      (progn
        (string-blank-p STR)
        (cond ((cl-member (car (last (split-string STR "" t))) +modeline/reserved-chars :test #'string=) STR)
              (t (concat STR (cl-reduce #'concat (cl-loop for i from 1 to +modeline/sep-spaces collect " "))))))
    (error STR)))
#+END_SRC

Finally, set the mode-line-format.
#+BEGIN_SRC emacs-lisp
(setq-default 
 mode-line-format
 (mapcar #'+modeline/handle-string
       (list "%l:%c"
             "%p["
             '(:eval (upcase
                      (substring
                       (format "%s" (if (bound-and-true-p evil-state) evil-state ""))
                       0 1)))
             "]"
             "%+%b("
             '(:eval (format "%s" major-mode))
             ")"
             "%I"
             vc-mode
             mode-line-end-spaces)))
#+END_SRC
* Custom Functions
These are custom functions I have defined
** New line function
Vim bindings don't have a nice way of adding new lines before or after the current line while staying in normal mode.
You can use =o/O= to enter insert mode at a new line, but this isn't the same as being able to stay in normal mode, and only adds extra keypresses if your only purpose was to open up some lines.
As this is Emacs I can extend it as I wish, so I decided to define a new line function that won't remove me from normal state.
  
The logic is pretty simple:
- Use the predefined vim functions for opening new lines above and below with insert mode
  - Given the argument =BACKWARD= to assess whether to open lines above or below
- Return to previous location
- Enter normal state

  #+BEGIN_SRC emacs-lisp
  (with-eval-after-load "evil"
    (defun dx:newline (&optional BACKWARD)
      (interactive)
      (let ((old (point)))
        (cond ((and BACKWARD (= BACKWARD 1)) (evil-open-below 1))
              (t (evil-open-above 1)))
        (goto-char (+ old 1))
        (evil-normal-state))))
  #+END_SRC
** Generate tags
For some reason, I can't seem to rely on the =projectile-regenerate-tags= function, so define my own.
   
Steps are as follows:
- Consider the =root= to be either =default-directory= or the =projectile-project-root= depending on if it's loaded and set.
- Start a process (shell command) by changing to =root= and executing =ctags -Re=
  #+BEGIN_SRC emacs-lisp
  (defun dx:generate-tags ()
    (interactive)
    (let ((root (if (bound-and-true-p projectile-project-root)
                    projectile-project-root
                  default-directory)))
      (start-process-shell-command "" nil (format "cd %s; ctags -Re ." root))))
  #+END_SRC
* General
Setup general, a good package for defining keys.
#+BEGIN_SRC emacs-lisp
(use-package general
  :config
  (general-def 'normal global-map "SPC" nil)
  (general-def 'normal global-map
    "M-V" #'dx:newline
    "M-v" #'(lambda () (interactive) (dx:newline 1)))
    
  (general-create-definer leader
    :states 'normal
    :keymaps 'override
    :prefix "SPC")
    
  (leader
    "!"   #'async-shell-command
    "SPC" #'execute-extended-command
    "u"   #'universal-argument
    "si"  #'imenu
    "h"   #'help-command)
    
  (leader
    :infix "b"
    "d" #'kill-this-buffer
    "i" #'ibuffer
    "b" #'switch-to-buffer)

  (leader
    :infix "c"
    "f" #'(lambda () (interactive) (find-file "~/Code/")))

  (leader
    :infix "f"
    "f" #'find-file
    "s" #'save-buffer
    "p" #'(lambda () (interactive) (find-file (concat user-emacs-directory "config.org")))))
#+END_SRC
* Evil
** Evil default
Setup the evil package, with some basic keybinds.
Also declare a leader-map at "SPC".
#+BEGIN_SRC emacs-lisp
(use-package evil
  :init
  (setq evil-want-keybinding nil)
  :config
  (evil-mode +1)
  (evil-define-key 'normal global-map
    "TAB" #'evil-jump-item)
  (evil-define-key 'visual 'emacs-lisp-mode-map "gr" #'eval-region)
  (leader
    :infix "w"
    "h" #'evil-window-left
    "j" #'evil-window-down
    "k" #'evil-window-up
    "l" #'evil-window-right))
#+END_SRC
** Evil surround
#+BEGIN_SRC emacs-lisp
(use-package evil-surround
  :after evil
  :config
  (global-evil-surround-mode))
#+END_SRC
** Evil commentary
#+BEGIN_SRC emacs-lisp
(use-package evil-commentary
  :after evil
  :config
  (evil-commentary-mode))
#+END_SRC
** Evil mc
Setup for multicursors in Evil mode.
Don't let evil-mc setup it's own keymap because it uses 'gr' as its prefix, which I don't like.
Instead, bind some useful functions to my personal =dx:evil-mc-map= which is bound to 'gz'.
Furthermore, define a function =dx:evil-mc-cursor-here= which pauses cursors upon placing a cursor at the current position.
#+BEGIN_SRC emacs-lisp
(use-package evil-mc
  :after evil
  :bind (("M-p" . evil-mc-skip-and-goto-prev-cursor)
         :map dx:evil-mc-map				 
         ("q"   . evil-mc-undo-all-cursors)
         ("d"   . evil-mc-make-and-goto-next-match)
         ("j"   . evil-mc-make-cursor-move-next-line)
         ("k"   . evil-mc-make-cursor-move-prev-line)
         ("j"   . evil-mc-make-cursor-move-next-line)
         ("m"   . evil-mc-make-all-cursors)
         ("z"   . dx:evil-mc-cursor-here)
         ("r"   . evil-mc-resume-cursors)
         ("s"   . evil-mc-pause-cursors))
  :init
  (defvar evil-mc-key-map (make-sparse-keymap))
  (define-prefix-command 'dx:evil-mc-map)
  (bind-key "gz" dx:evil-mc-map evil-normal-state-map)
  :config
  (global-evil-mc-mode +1)
  (defun dx:evil-mc-cursor-here ()
    (interactive)
    (evil-mc-make-cursor-here)
    (evil-mc-pause-cursors)))
#+END_SRC
** Evil collection
Setup evil collection, but don't turn on the mode.
Instead, I'll turn on setups for specific modes I think benefit from it.
#+BEGIN_SRC emacs-lisp
(use-package evil-collection
  :after evil)
#+END_SRC
* Ivy
Ivy is a completion framework for Emacs, and my preferred (sometimes second favourite) one.
It has a great set of features with little to no pain with setting up.
** Ivy
Setup for ivy, in preparation for counsel.
Turn on ivy-mode just after init.
Setup vim-like bindings for the minibuffer ("C-(j|k)" for down|up the selection list)
Also setup evil-collection for ivy.
#+BEGIN_SRC emacs-lisp
(use-package ivy
  :hook (after-init . ivy-mode)
  :after evil-collection
  :bind (:map ivy-minibuffer-map 
         ("M-j" . ivy-next-line-or-history)
         ("M-k" . ivy-previous-line-or-history)
         :map ivy-switch-buffer-map
         ("M-j" . ivy-next-line-or-history)
         ("M-k" . ivy-previous-line-or-history))
  :general
  (:keymaps 'ivy-minibuffer-map
   "C-c C-e" #'ivy-occur)
  :config
  (require 'counsel nil t)
  (setq ivy-height 10
        ivy-wrap t
        ivy-fixed-height-minibuffer t
        ivy-use-virtual-buffers nil
        ivy-virtual-abbreviate 'full
        ivy-on-del-error-function #'ignore
        ivy-use-selectable-prompt t
        ivy-initial-inputs-alist nil)
  (evil-collection-ivy-setup))
#+END_SRC
** Counsel
Setup for counsel.
Load after ivy and helpful.
   
Bind:
- Swiper to "C-s"
- Switch buffer to "C-x b"
- Counsel ripgrep to "M-s r" (search namespace)
  
Along with that, set the help function and variable functions to their helpful counterparts.
#+BEGIN_SRC emacs-lisp
(use-package counsel
  :defer t
  :general
  (leader
    :infix "s"
    "s" #'counsel-grep-or-swiper)
  :init
  (general-def
    [remap describe-function]        #'counsel-describe-function
    [remap describe-variable]        #'counsel-describe-variable
    [remap describe-bindings]        #'counsel-descbinds
    [remap describe-face]            #'counsel-faces
    [remap execute-extended-command] #'counsel-M-x
    [remap find-file]                #'counsel-find-file
    [remap imenu]                    #'counsel-imenu
    [remap load-theme]               #'counsel-load-theme)
  :config
  (setq ivy-initial-inputs-alist nil)
  (setq counsel-describe-function-function #'helpful-callable
        counsel-describe-variable-function #'helpful-variable))
#+END_SRC
** Counsel etags
Counsel etags allows me to search generated tag files for tags.
I already have a function defined [[*Generate tags][here]] to generate the tags, so it's just searching them which I find to be a bit of a hassle, and where this package comes in.
#+BEGIN_SRC emacs-lisp
(use-package counsel-etags
 :after counsel
 :bind ("M-s t" . counsel-etags-find-tag))
#+END_SRC
* Avy
Setup avy with leader.
#+BEGIN_SRC emacs-lisp
(use-package avy
  :after evil
  :general
  (leader
    :infix "s"
    "l" #'avy-goto-line
    "g" #'avy-goto-char-2))
#+END_SRC
* Projectile
Setup projectile, along with the tags command.
Also bind "C-c C-p" to the projectile command map for quick access.
#+BEGIN_SRC emacs-lisp
(use-package projectile
  :after evil
  :hook (prog-mode . projectile-mode)
  :init
  (setq projectile-tags-command "ctags -Re -f \"%s\" %s \"%s\"")
  :config
  (projectile-global-mode))
#+END_SRC
** Counsel projectile
Counsel projectile provides the ivy interface to projectile commands, which is really useful.
#+BEGIN_SRC emacs-lisp
(use-package counsel-projectile
  :after (projectile counsel)
  :config
  (counsel-projectile-mode +1))
#+END_SRC
* Mail
** Notmuch
#+BEGIN_SRC emacs-lisp
(setq +mail/signature "---------------\nAryadev Chavali")
(use-package notmuch
  :commands notmuch
  :custom
  ((notmuch-show-logo nil)
   (message-signature +mail/signature)
   (mail-signature +mail/signature))
  :init
  (defun +mail/sync-mail ()
    "Sync mail via mbsync."
    (interactive)
    (start-process-shell-command "" nil "mbsync -a"))
  :config
  (evil-collection-notmuch-setup))
#+END_SRC
** Smtpmail
#+BEGIN_SRC emacs-lisp
(use-package smtpmail
  :commands mail-send
  :after notmuch
  :custom
  ((smtpmail-smtp-server "mail.aryadevchavali.com")
   (smtpmail-smtp-user "aryadev")
   (smtpmail-smtp-service 587)
   (smtpmail-stream-type 'starttls))
  :init
  (setq send-mail-function #'smtpmail-send-it
        message-send-mail-function #'smtpmail-send-it))
#+END_SRC

* Dired
Setup for dired.
Firstly, as it's an inbuilt package don't let straight try and download it.
Make dired-hide-details-mode the default mode when dired-mode, as it removes the clutter.
Create a keymap =dx:dired-map= which is bound to the prefix "C-c d", binding useful dired functions.
Setup evil collection for dired (even though dired doesn't really conflict with evil, there are some black corners I'd like to adjust)
#+BEGIN_SRC emacs-lisp
(use-package dired
  :straight nil
  :hook (dired-mode . dired-hide-details-mode)
  :after evil-collection
  :general
  (leader
    :infix "d"
    "f" #'find-dired
    "D" #'dired-other-window
    "d" #'dired-jump)
  :config
  (evil-collection-dired-setup))
#+END_SRC
* Hydra
Use hydras for stuff that I use often, currently buffer manipulation
#+BEGIN_SRC emacs-lisp 
(use-package hydra
  :after evil
  :init
  (defun dx:kill-defun ()
    "Mark defun then kill it."
    (interactive)
    (mark-defun)
    (delete-active-region t))

  (defun dx:paste-section ()
    "Paste the current kill-region content above section."
    (interactive)
    (open-line 1)
    (yank))

  :config
  (defhydra hydra-buffer (evil-normal-state-map "SPC b")
    "buffer-hydra"
    ("j" next-buffer)
    ("k" previous-buffer)
    ("c" kill-this-buffer))

  (defhydra hydra-code-manipulator (global-map "C-x c")
    "code-manip"
    ("j" evil-forward-section-begin)
    ("k" evil-backward-section-begin)
    ("m" mark-defun)
    ("d" dx:kill-defun)
    ("p" dx:paste-section)
    ("TAB" evil-toggle-fold)))
#+END_SRC
* IBuffer
#+BEGIN_SRC emacs-lisp
(use-package ibuffer
  :after evil-collection
  :config
  (evil-collection-ibuffer-setup))
#+END_SRC
* Helpful
Basic setup, will be fully integrated in counsel.
#+BEGIN_SRC emacs-lisp
(use-package helpful
  :commands (helpful-callable helpful-variable)
  :init
  (evil-define-key 'normal helpful-mode-map "q" #'quit-window))
#+END_SRC
* Which-key
Pretty simple, just activate after init.
#+BEGIN_SRC emacs-lisp
(use-package which-key
  :hook (after-init . which-key-mode))
#+END_SRC
* Yasnippet
Yasnippet is a great package for snippets, which I use heavily in programming and org-mode.
I setup here the global mode for yasnippet and a collection of snippets for ease of use.
** Yasnippet default
Setup global mode after evil mode has been loaded
#+BEGIN_SRC emacs-lisp
(use-package yasnippet
  :after evil
  :hook ((prog-mode . yas-minor-mode)
         (text-mode . yas-minor-mode))
  :general
  (leader
    "i" #'yas-insert-snippet))
#+END_SRC
** Yasnippet snippets
Collection of snippets, activate after yasnippet has been loaded.
#+BEGIN_SRC emacs-lisp
(use-package yasnippet-snippets
  :after yasnippet)
#+END_SRC
* Keychord
Keychord is only really here for this one chord I wish to define: "jk" for exiting insert state.
Otherwise, I don't really need it.
#+BEGIN_SRC emacs-lisp
(use-package key-chord
  :after evil
  :config
  (key-chord-define evil-insert-state-map "jk" #'evil-normal-state)
  (key-chord-mode +1))
#+END_SRC
* Ripgrep
The ripgrep package provides utilities to grep projects and files for strings via the rg tool.
Though [[*Ivy][ivy]] comes with =counsel-rg= using it makes me dependent on the ivy framework, and this configuration is intentionally built to be modular and switchable.
#+BEGIN_SRC emacs-lisp
(use-package rg
  :after evil
  :general
  (leader "r" #'rg)
  (:keymaps 'rg-mode-map
   "]]" #'rg-next-file
   "[[" #'rg-prev-file)
  :init
  (setq rg-group-result t
        rg-hide-command t
        rg-show-columns nil
        rg-show-header t
        rg-custom-type-aliases nil
        rg-default-alias-fallback "all"))
#+END_SRC
* Magit
Magit is *the* git porcelain for Emacs, which perfectly encapsulates the git cli.
In this case, I just need to setup the bindings for it.
As magit will definitely load after evil (as it must be run by a binding, and evil will load after init), I can use evil-collection freely.
#+BEGIN_SRC emacs-lisp
(use-package magit
  :general
  (leader "g" #'magit-status))

(use-package evil-magit
  :after magit)
#+END_SRC
* Company
Company is the auto complete system I use.
I don't like having heavy setups for company, as it only makes it worse to use.
In this case, just setup some evil binds for company
#+BEGIN_SRC emacs-lisp
(use-package company
  :hook (prog-mode . company-mode)
  :bind (("C-SPC" . company-complete)
         :map company-active-map
         ("M-j" . company-select-next)
         ("M-k" . company-select-previous)))
#+END_SRC
* Elfeed
Elfeed is the perfect RSS feed reader, integrated into Emacs perfectly.
I've got a set of feeds that I use for a large variety of stuff, mostly media and entertainment.
I've also bound "C-c r" to elfeed for loading the system.
#+BEGIN_SRC emacs-lisp
(use-package elfeed
  :init
  (setq +rss/feed-urls
        '(("Arch Linux"            "https://www.archlinux.org/feeds/news/" Linux)
          ("LEMMiNO"               "https://www.youtube.com/feeds/videos.xml?channel_id=UCRcgy6GzDeccI7dkbbBna3Q" YouTube Stories)
          ("Dark Sominium"         "https://www.youtube.com/feeds/videos.xml?channel_id=UC_e39rWdkQqo5-LbiLiU10g" YouTube Stories)
          ("Dark Sominium Music"   "https://www.youtube.com/feeds/videos.xml?channel_id=UCkLiZ_zLynyNd5fd62hg1Kw" YouTube Music)
          ("Nexpo"                 "https://www.youtube.com/feeds/videos.xml?channel_id=UCpFFItkfZz1qz5PpHpqzYBw" YouTube)
          ("Techquickie"           "https://www.youtube.com/feeds/videos.xml?channel_id=UC0vBXGSyV14uvJ4hECDOl0Q" YouTube)
          ("Captain Sinbad"        "https://www.youtube.com/feeds/videos.xml?channel_id=UC8XKyvQ5Ne_bvYbgv8LaIeg" YouTube)
          ("3B1B"                  "https://www.youtube.com/feeds/videos.xml?channel_id=UCYO_jab_esuFRV4b17AJtAw" YouTube)
          ("Fredrik Knusden"       "https://www.youtube.com/feeds/videos.xml?channel_id=UCbWcXB0PoqOsAvAdfzWMf0w" YouTube Stories)
          ("Barely Sociable"       "https://www.youtube.com/feeds/videos.xml?channel_id=UC9PIn6-XuRKZ5HmYeu46AIw" YouTube Stories)
          ("Atrocity Guide"        "https://www.youtube.com/feeds/videos.xml?channel_id=UCn8OYopT9e8tng-CGEWzfmw" YouTube Stories)
          ("Philip Defranco"       "https://www.youtube.com/feeds/videos.xml?channel_id=UClFSU9_bUb4Rc6OYfTt5SPw" YouTube News)
          ("Hacker News"           "http://morss.aryadevchavali.com/news.ycombinator.com/rss"                     Social)
          ("Hacker Factor"         "https://www.hackerfactor.com/blog/index.php?/feeds/index.rss2"                Social)
          ("BBC Top News"          "http://morss.aryadevchavali.com/feeds.bbci.co.uk/news/rss.xml"                News)
          ("BBC Tech News"         "http://morss.aryadevchavali.com/feeds.bbci.co.uk/news/technology/rss.xml"     News)))
  (setq elfeed-db-directory (concat user-emacs-directory "elfeed"))
  :config
  (evil-collection-elfeed-setup)
  (evil-define-key 'normal elfeed-search-mode-map "gr" #'elfeed-update)
  (evil-define-key 'normal elfeed-search-mode-map "s" #'elfeed-search-live-filter)
  (evil-define-key 'normal elfeed-search-mode-map "<return>" #'elfeed-search-show-entry)
  (setq elfeed-feeds (cl-map 'list #'(lambda (item) (append (list (nth 1 item)) (cdr (cdr item)))) +rss/feed-urls)))
#+END_SRC
* Org mode
** Org default with evil
Setup for org mode, currently basically nothing.
Has evil-org for evil bindings.
#+BEGIN_SRC emacs-lisp
(use-package org
  :hook (org-mode . yas-minor-mode)
  :bind (:map org-mode-map
              ([remap imenu] . counsel-org-goto))
  :custom
  ((org-edit-src-content-indentation 0)
   (org-src-window-setup 'current-window)
   (org-indirect-buffer-display 'current-window)
   (org-eldoc-breadcrumb-separator " → ")
   (org-enforce-todo-dependencies t)
   (org-entities-user '(("flat"  "\\flat" nil "" "" "266D" "♭") ("sharp" "\\sharp" nil "" "" "266F" "♯")))
   (org-fontify-quote-and-verse-blocks t)
   (org-fontify-whole-heading-line t)
   (org-footnote-auto-label 'plain)
   (org-hide-leading-stars t)
   (org-image-actual-width nil)
   (org-priority-faces '((?A . error) (?B . warning) (?C . success)))
   (org-startup-indented t)
   (org-tags-column 0)
   (org-use-sub-superscripts '{})))

(use-package evil-org
  :hook (org-mode . evil-org-mode))
#+END_SRC
** Org superstar
#+BEGIN_SRC emacs-lisp
(use-package org-superstar
  :hook (org-mode . org-superstar-mode))
#+END_SRC
** Flyspell
#+BEGIN_SRC emacs-lisp
(use-package flyspell
  :hook (org-mode . flyspell-mode))

(use-package flyspell-correct-ivy
  :after flyspell
  :bind (:map org-mode-map
              ("C-c C-a" . flyspell-correct-at-point)))
#+END_SRC
* Window management
Window management is really important.
I find the default window handling of Emacs incredibly annoying: sometimes consuming my windows, sometimes creating new ones.
So, as Emacs is the ultimate editor, I want to configure and fine tune the window management of Emacs.
#+BEGIN_SRC emacs-lisp
(setq display-buffer-alist
      '(("\\*e?shell\\*"
         (display-buffer-in-side-window)
         (window-height . 0.25)
         (side . bottom)
         (slot . 0))
        ("\\*[Hh]elp.*"
         (display-buffer-in-side-window)
         (window-height . 0.25)
         (side . bottom)
         (slot . 1))
        ("magit:.*"
         (display-buffer-in-side-window)
         (side . right)
         (slot . -1)
         (window-width . 0.5))
        ("magit-diff:.*"
         (display-buffer-in-side-window)
         (side . right)
         (window-width . 0.5))
        ("magit-log:.*"
         (display-buffer-in-side-window)
         (side . right)
         (window-width . 0.5))
        ("\\*compilation\\*"
         (display-buffer-in-side-window)
         (side . bottom)
         (slot . -1)
         (window-height . 0.25))
        ("\\*Flycheck.*"
         (display-buffer-in-side-window)
         (side . bottom)
         (window-height . 0.25)
         (slot . 0))
        ("\\*rg.*"
         (display-buffer-in-side-window)
         (side . bottom)
         (window-height . 0.25)
         (slot . 1))
        ))
#+END_SRC
* Major modes and Programming
Setups for common major modes and languages
Here are some basic packages for programming first
** Smartparens
Smartparens is a smarter electric-parens, it's much more aware of stuff and easier to use.
#+BEGIN_SRC emacs-lisp
(use-package smartparens
  :hook (prog-mode . smartparens-mode)
  :after evil
  :config
  (setq sp-highlight-pair-overlay nil
        sp-highlight-wrap-overlay t
        sp-highlight-wrap-tag-overlay t)
  
  (let ((unless-list '(sp-point-before-word-p
                       sp-point-after-word-p
                       sp-point-before-same-p)))
    (sp-pair "'"  nil :unless unless-list)
    (sp-pair "\"" nil :unless unless-list))
  (sp-local-pair sp-lisp-modes "(" ")" :unless '(:rem sp-point-before-same-p))
  (require 'smartparens-config))
#+END_SRC
** Show-paren-mode
Show parenthesis for Emacs
#+BEGIN_SRC emacs-lisp
(add-hook 'prog-mode-hook #'show-paren-mode)
#+END_SRC
** Eldoc
#+BEGIN_SRC emacs-lisp
(use-package eldoc
  :hook (prog-mode . eldoc-mode))

(use-package eldoc-box
  :hook (eldoc-mode . eldoc-box-hover-mode))
#+END_SRC

** Eglot
Eglot is a library of packages to communicate with LSP servers for better programming capabilities.
Interactions with a server provide results to the client, done through JSON.
#+BEGIN_SRC emacs-lisp
(use-package eglot
  :hook (c++-mode . eglot-ensure)
  :hook (c-mode . eglot-ensure)
  :bind (:map eglot-mode-map
              ("<f2>" . eglot-rename)
              ("C-c C-A" . eglot-code-actions)
              ("C-c C-f" . eglot-format))
  :config
  (add-to-list 'eglot-server-programs '((c-mode c++-mode) "clangd")))
#+END_SRC
** Flycheck
Flycheck is the checking system for Emacs.
I don't necessarily like having all my code checked all the time, so I haven't added a hook to prog-mode as it would be better for me to decide when I want checking and when I don't.
#+BEGIN_SRC emacs-lisp
(use-package flycheck
  :commands flycheck-mode
  :config
  (defun +flycheck/list-errors-load-flycheck ()
    "Load flycheck if not available, then list errors."
    (interactive)
    (when (not (or flycheck-mode global-flycheck-mode))
      (flycheck-mode))
    (flycheck-list-errors)))
#+END_SRC
** Activate tabs
Set tabs to nil by default, with normal tab size set to 2.
#+BEGIN_SRC emacs-lisp
(setq-default indent-tabs-mode nil
              tab-width 2)
#+END_SRC
   
Add a function to activate tabs mode.
#+BEGIN_SRC emacs-lisp
(defun dx:activate-tabs ()
  (interactive)
  (setq indent-tabs-mode t))
#+END_SRC
** C/C++
Setup for C and C++ modes via the cc-mode package.
Firstly hook the C and C++ modes to activate tabs.
Then set the offset to 2, and the general style to user.
Finally, add a user style that mimics the Microsoft guidelines for C# (open braces everywhere).
#+BEGIN_SRC emacs-lisp
(use-package cc-mode
  :hook (c-mode   . dx:activate-tabs)
  :hook (c++-mode . dx:activate-tabs)
  :init
  (setq-default c-basic-offset 2)
  (setq c-default-style '((java-mode . "java")
                          (awk-mode . "awk")
                          (other . "user")))
  :config
  (c-add-style
   "user"
   '((c-basic-offset . 2)
     (c-comment-only-line-offset . 0)
     (c-hanging-braces-alist (brace-list-open)
                             (brace-entry-open)
                             (substatement-open after)
                             (block-close . c-snug-do-while)
                             (arglist-cont-nonempty))
     (c-cleanup-list brace-else-brace)
     (c-offsets-alist
      (statement-block-intro . +)
      (knr-argdecl-intro . 0)
      (substatement-open . 0)
      (substatement-label . 0)
      (access-label . 0)
      (label . 0)
      (statement-cont . +)))))
#+END_SRC
*** Clang format
use-package clang-format for ease of use formatting, binding to "C-c '" for both C and C++ mode maps.
#+BEGIN_SRC emacs-lisp
(use-package clang-format
  :after cc-mode
  :config
  (bind-key "C-c '" #'clang-format-region c-mode-map)
  (bind-key "C-c '" #'clang-format-region c++-mode-map))
#+END_SRC
** Emacs lisp
#+BEGIN_SRC emacs-lisp
(with-eval-after-load "lisp-mode"
  (defun +modded/lisp-indent-function (indent-point state)
    "This function is the normal value of the variable `lisp-indent-function'.
The function `calculate-lisp-indent' calls this to determine
if the arguments of a Lisp function call should be indented specially.
INDENT-POINT is the position at which the line being indented begins.
Point is located at the point to indent under (for default indentation);
STATE is the `parse-partial-sexp' state for that position.
If the current line is in a call to a Lisp function that has a non-nil
property `lisp-indent-function' (or the deprecated `lisp-indent-hook'),
it specifies how to indent.  The property value can be:
,* `defun', meaning indent `defun'-style
  \(this is also the case if there is no property and the function
  has a name that begins with \"def\", and three or more arguments);
,* an integer N, meaning indent the first N arguments specially
  (like ordinary function arguments), and then indent any further
  arguments like a body;
,* a function to call that returns the indentation (or nil).
  `lisp-indent-function' calls this function with the same two arguments
  that it itself received.
This function returns either the indentation to use, or nil if the
Lisp function does not specify a special indentation."
    (let ((normal-indent (current-column))
          (orig-point (point)))
      (goto-char (1+ (elt state 1)))
      (parse-partial-sexp (point) calculate-lisp-indent-last-sexp 0 t)
      (cond
       ;; car of form doesn't seem to be a symbol, or is a keyword
       ((and (elt state 2)
             (or (not (looking-at "\\sw\\|\\s_"))
                 (looking-at ":")))
        (if (not (> (save-excursion (forward-line 1) (point))
                    calculate-lisp-indent-last-sexp))
            (progn (goto-char calculate-lisp-indent-last-sexp)
                   (beginning-of-line)
                   (parse-partial-sexp (point)
                                       calculate-lisp-indent-last-sexp 0 t)))
        ;; Indent under the list or under the first sexp on the same
        ;; line as calculate-lisp-indent-last-sexp.  Note that first
        ;; thing on that line has to be complete sexp since we are
        ;; inside the innermost containing sexp.
        (backward-prefix-chars)
        (current-column))
       ((and (save-excursion
               (goto-char indent-point)
               (skip-syntax-forward " ")
               (not (looking-at ":")))
             (save-excursion
               (goto-char orig-point)
               (looking-at ":")))
        (save-excursion
          (goto-char (+ 2 (elt state 1)))
          (current-column)))
       (t
        (let ((function (buffer-substring (point)
                                          (progn (forward-sexp 1) (point))))
              method)
          (setq method (or (function-get (intern-soft function)
                                         'lisp-indent-function)
                           (get (intern-soft function) 'lisp-indent-hook)))
          (cond ((or (eq method 'defun)
                     (and (null method)
                          (> (length function) 3)
                          (string-match "\\`def" function)))
                 (lisp-indent-defform state indent-point))
                ((integerp method)
                 (lisp-indent-specform method state
                                       indent-point normal-indent))
                (method
                 (funcall method indent-point state))))))))
  (add-hook 'emacs-lisp-mode-hook #'(lambda () (interactive) (setq-local lisp-indent-function #'+modded/lisp-indent-function))))
#+END_SRC