summaryrefslogtreecommitdiff
path: root/lisp/init-editing.el
blob: 9e03333ef908424325c00a98612f84fb3e6b6b2f (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
(require-package 'multiple-cursors)
(require-package 'expand-region)
(require-package 'wrap-region)
(require-package 'subr+)
(require-package 'narrow-indirect)

(global-set-key (kbd "C-x \\") 'align-regexp)

;; Overrides `suspend-emacs' (which is also bound to C-x C-z).
(global-set-key (kbd "C-z") 'zap-to-char)
;; http://irreal.org/blog/?p=1536
(autoload 'zap-up-to-char "misc"
  "Kill up to, but not including ARGth occurrence of CHAR.")
(global-set-key (kbd "M-z") 'zap-up-to-char)

(global-set-key (kbd "C-'") 'backward-kill-word)

(global-set-key (kbd "M-/") 'hippie-expand)
(setq hippie-expand-try-functions-list '(try-complete-file-name-partially
                                         try-complete-file-name
                                         try-expand-all-abbrevs
                                         try-expand-dabbrev
                                         try-expand-dabbrev-all-buffers
                                         try-expand-dabbrev-from-kill
                                         try-complete-lisp-symbol-partially
                                         try-complete-lisp-symbol))

(define-key ctl-x-4-map "nd" 'ni-narrow-to-defun-other-window)
(define-key ctl-x-4-map "nn" 'ni-narrow-to-region-other-window)
(define-key ctl-x-4-map "np" 'ni-narrow-to-page-indirect-other-window)

;; http://www.emacswiki.org/emacs/UnfillParagraph
(defun km/unfill-paragraph ()
  "Takes a multi-line paragraph and makes it into a single line of text."
  (interactive)
  (let ((fill-column (point-max)))
    (fill-paragraph nil)))

(define-key search-map "s" 'query-replace)
(define-key search-map "S" 'replace-string)
(define-key search-map "r" 'query-replace-regexp)
(define-key search-map "R" 'replace-regexp)

(defun km/narrow-to-comment-heading ()
  "Narrow to the current comment heading subtree.

A comment is considered a heading if it is at the beginning of
the line and if it conists of 3 or more occurences of
`comment-start'. The number of `comment-start' characters is
taken to indicate the level of the heading (with 3 being the top
level).

The buffer will be narrowed from the current comment heading to
the next comment heading of the same level or, if not found, to
the end of the buffer.

In the examples below, 'x' indicates the current point and '>>>'
and '<<<' mark the bounds of the narrowed region.

---------------------------------------------------------------
    >>>;;; Level one heading
         x

       ;;;; Level two heading

       <<<
       ;;; Another level one heading
------------------------------eob------------------------------

---------------------------------------------------------------
       ;;; Level one heading

    >>>;;;; Level two heading
           x
       <<<
       ;;;; Another level one heading
------------------------------eob------------------------------

---------------------------------------------------------------
    >>>;;; Level one heading
         x

       ;;;; Level two heading
       <<<
------------------------------eob------------------------------"
  (interactive)
  (unless comment-start
    (user-error "Comment syntax is not defined for current buffer"))
  (unless (= (length comment-start) 1)
    (user-error "Buffer's comment string consists of more than one character"))
  (save-excursion
    (widen)
    (let ((outline-regexp (concat (s-repeat 4 comment-start) "*")))
      (outline-mark-subtree)
      (narrow-to-region (region-beginning) (region-end)))))

(define-key narrow-map "c" 'km/narrow-to-comment-heading)

(defun km/toggle-line-or-region-comment ()
  "Comment/uncomment the current line or region"
    (interactive)
    (let (beg end)
      (if (region-active-p)
          (setq beg (region-beginning) end (region-end))
        (setq beg (line-beginning-position) end (line-end-position)))
      (comment-or-uncomment-region beg end))
    (forward-line))

(key-chord-define-global ",c" 'km/toggle-line-or-region-comment)

;; Put multiple cursors map under insert prefix.
(define-prefix-command 'km/editing-map)
(global-set-key (kbd "C-c e") 'km/editing-map)

(define-key km/editing-map "l" 'mc/edit-lines)
(define-key km/editing-map "b" 'mc/edit-beginnings-of-lines)
(define-key km/editing-map "e" 'mc/edit-ends-of-lines)
(define-key km/editing-map "n" 'mc/mark-next-like-this)
(define-key km/editing-map "p" 'mc/mark-previous-like-this)
(define-key km/editing-map "a" 'mc/mark-all-like-this)

;; Buffer-specific prevention modified from
;; http://stackoverflow.com/questions/14913398/
;; in-emacs-how-do-i-save-without-running-save-hooks.
(defvar km/prevent-cleanup nil
  "If set, `km/cleanup-buffer' does not perform clean up on save.")

(defun km/toggle-prevent-cleanup ()
  "Toggle state of `km/prevent-cleanup'"
  (interactive)
  (if km/prevent-cleanup
      (message "Allowing cleanup on save ")
    (message "Preventing cleanup on save"))
  (set (make-local-variable 'km/prevent-cleanup) (not km/prevent-cleanup)))

(defun km/cleanup-buffer ()
  (interactive)
  (unless km/prevent-cleanup
    (unless (equal major-mode 'makefile-gmake-mode)
      (untabify (point-min) (point-max)))
    (delete-trailing-whitespace)
    (set-buffer-file-coding-system 'utf-8)))
(add-hook 'before-save-hook 'km/cleanup-buffer)

(define-key km/editing-map "t" 'km/toggle-prevent-cleanup)

(global-set-key (kbd "C-;") 'er/expand-region)

(define-key km/editing-map "i" 'indent-relative)

(electric-indent-mode -1)

;; From http://whattheemacsd.com/key-bindings.el-01.html
(defun km/goto-line-with-feedback ()
  "Show line numbers temporarily, while prompting for the line number input"
  (interactive)
  (unwind-protect
      (progn
        (linum-mode 1)
        (call-interactively 'goto-line))
    (linum-mode -1)))

(global-set-key [remap goto-line] 'km/goto-line-with-feedback)

;; Kill map
(define-prefix-command 'km/kill-map)
(global-set-key (kbd "C-c k") 'km/kill-map)

(defun km/kill-string-at-point ()
  (interactive)
  (let ((string-start (nth 8 (syntax-ppss))))
    (goto-char string-start)
    (kill-sexp)))

(defmacro km/make-kill-thing-at-point (name thing kill-func)
  `(defun ,(intern (concat "km/kill-" name "-at-point")) (arg)
     (interactive "p")
     (goto-char (beginning-of-thing ,thing))
     (funcall ,kill-func arg)))

(km/make-kill-thing-at-point "word" 'word 'kill-word)
(km/make-kill-thing-at-point "sentence" 'sentence 'kill-sentence)
(km/make-kill-thing-at-point "paragraph" 'paragraph 'kill-paragraph)
(km/make-kill-thing-at-point "line" 'line 'kill-line)
(km/make-kill-thing-at-point "sexp" 'sexp 'kill-sexp)

(define-key km/kill-map  "s" 'km/kill-string-at-point)
(define-key km/kill-map  "." 'km/kill-sentence-at-point)
(define-key km/kill-map  "w" 'km/kill-word-at-point)
(define-key km/kill-map  "p" 'km/kill-paragraph-at-point)
(define-key km/kill-map  "l" 'km/kill-line-at-point)

;; Taken from prelude-core.el.
(defun km/join-next-line-with-space ()
  "Join current line to the next line with a space in between."
  (interactive)
  (delete-indentation 1))

(define-key km/kill-map  "j" 'km/join-next-line-with-space)

(provide 'init-editing)