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55535639 | 1 | ;;; paragraphs.el --- paragraph and sentence parsing |
6594deb0 | 2 | |
3731a850 TTN |
3 | ;; Copyright (C) 1985, 1986, 1987, 1991, 1994, 1995, 1996, 1997, 1999, 2000, |
4 | ;; 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. | |
9750e079 | 5 | |
4821e2af | 6 | ;; Maintainer: FSF |
d7b4d18f | 7 | ;; Keywords: wp |
4821e2af | 8 | |
a2535589 JA |
9 | ;; This file is part of GNU Emacs. |
10 | ||
11 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
12 | ;; it under the terms of the GNU General Public License as published by | |
29add8b9 | 13 | ;; the Free Software Foundation; either version 2, or (at your option) |
a2535589 JA |
14 | ;; any later version. |
15 | ||
16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ;; GNU General Public License for more details. | |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
b578f267 | 22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
4fc5845f LK |
23 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
24 | ;; Boston, MA 02110-1301, USA. | |
a2535589 | 25 | |
edbd2f74 ER |
26 | ;;; Commentary: |
27 | ||
28 | ;; This package provides the paragraph-oriented commands documented in the | |
29 | ;; Emacs manual. | |
30 | ||
4821e2af | 31 | ;;; Code: |
a2535589 | 32 | |
e4550233 RS |
33 | (defgroup paragraphs nil |
34 | "Paragraph and sentence parsing." | |
35 | :group 'editing) | |
36 | ||
c28e534b | 37 | (put 'use-hard-newlines 'permanent-local t) |
07187d55 | 38 | (define-minor-mode use-hard-newlines |
965eb84a RS |
39 | "Minor mode to distinguish hard and soft newlines. |
40 | When active, the functions `newline' and `open-line' add the | |
41 | text-property `hard' to newlines that they insert, and a line is | |
55cc5677 | 42 | only considered as a candidate to match `paragraph-start' or |
965eb84a | 43 | `paragraph-separate' if it follows a hard newline. |
55cc5677 | 44 | |
965eb84a RS |
45 | Prefix argument says to turn mode on if positive, off if negative. |
46 | When the mode is turned on, if there are newlines in the buffer but no hard | |
db95369b | 47 | newlines, ask the user whether to mark as hard any newlines preceeding a |
965eb84a RS |
48 | `paragraph-start' line. From a program, second arg INSERT specifies whether |
49 | to do this; it can be `never' to change nothing, t or `always' to force | |
db95369b | 50 | marking, `guess' to try to do the right thing with no questions, nil |
965eb84a RS |
51 | or anything else to ask the user. |
52 | ||
53 | Newlines not marked hard are called \"soft\", and are always internal | |
54 | to paragraphs. The fill functions insert and delete only soft newlines." | |
eacd92dd | 55 | :group 'paragraphs |
07187d55 SM |
56 | :extra-args (insert) |
57 | (when use-hard-newlines | |
965eb84a RS |
58 | ;; Turn mode on |
59 | ;; Intuit hard newlines -- | |
60 | ;; mark as hard any newlines preceding a paragraph-start line. | |
61 | (if (or (eq insert t) (eq insert 'always) | |
62 | (and (not (eq 'never insert)) | |
965eb84a RS |
63 | (not (text-property-any (point-min) (point-max) 'hard t)) |
64 | (save-excursion | |
65 | (goto-char (point-min)) | |
66 | (search-forward "\n" nil t)) | |
67 | (or (eq insert 'guess) | |
68 | (y-or-n-p "Make newlines between paragraphs hard? ")))) | |
69 | (save-excursion | |
70 | (goto-char (point-min)) | |
71 | (while (search-forward "\n" nil t) | |
72 | (let ((pos (point))) | |
73 | (move-to-left-margin) | |
07187d55 SM |
74 | (when (looking-at paragraph-start) |
75 | (set-hard-newline-properties (1- pos) pos)) | |
76 | ;; If paragraph-separate, newline after it is hard too. | |
77 | (when (looking-at paragraph-separate) | |
78 | (set-hard-newline-properties (1- pos) pos) | |
79 | (end-of-line) | |
80 | (unless (eobp) | |
81 | (set-hard-newline-properties (point) (1+ (point))))))))))) | |
55cc5677 | 82 | |
07187d55 | 83 | (defcustom paragraph-start "\f\\|[ \t]*$" "\ |
1f2007b3 RS |
84 | *Regexp for beginning of a line that starts OR separates paragraphs. |
85 | This regexp should match lines that separate paragraphs | |
86 | and should also match lines that start a paragraph | |
87 | \(and are part of that paragraph). | |
a37669ec | 88 | |
55cc5677 BG |
89 | This is matched against the text at the left margin, which is not necessarily |
90 | the beginning of the line, so it should never use \"^\" as an anchor. This | |
91 | ensures that the paragraph functions will work equally well within a region | |
92 | of text indented by a margin setting. | |
93 | ||
1f2007b3 | 94 | The variable `paragraph-separate' specifies how to distinguish |
a37669ec RS |
95 | lines that start paragraphs from lines that separate them. |
96 | ||
3f5dc0b0 | 97 | If the variable `use-hard-newlines' is non-nil, then only lines following a |
e4550233 RS |
98 | hard newline are considered to match." |
99 | :group 'paragraphs | |
100 | :type 'regexp) | |
6503cec3 | 101 | |
55cc5677 BG |
102 | ;; paragraph-start requires a hard newline, but paragraph-separate does not: |
103 | ;; It is assumed that paragraph-separate is distinctive enough to be believed | |
104 | ;; whenever it occurs, while it is reasonable to set paragraph-start to | |
105 | ;; something very minimal, even including "." (which makes every hard newline | |
106 | ;; start a new paragraph). | |
107 | ||
e4550233 RS |
108 | (defcustom paragraph-separate "[ \t\f]*$" |
109 | "*Regexp for beginning of a line that separates paragraphs. | |
9d7c4eb5 | 110 | If you change this, you may have to change `paragraph-start' also. |
a37669ec | 111 | |
55cc5677 BG |
112 | This is matched against the text at the left margin, which is not necessarily |
113 | the beginning of the line, so it should not use \"^\" as an anchor. This | |
114 | ensures that the paragraph functions will work equally within a region of | |
e4550233 RS |
115 | text indented by a margin setting." |
116 | :group 'paragraphs | |
117 | :type 'regexp) | |
6503cec3 | 118 | |
629261c7 SM |
119 | (defcustom sentence-end-double-space t |
120 | "*Non-nil means a single space does not end a sentence. | |
121 | This is relevant for filling. See also `sentence-end-without-period' | |
122 | and `colon-double-space'. | |
123 | ||
32e40471 | 124 | This value is used by the function `sentence-end' to construct the |
51d7369e LT |
125 | regexp describing the end of a sentence, when the value of the variable |
126 | `sentence-end' is nil. See Info node `(elisp)Standard Regexps'." | |
629261c7 SM |
127 | :type 'boolean |
128 | :group 'fill) | |
129 | ||
130 | (defcustom sentence-end-without-period nil | |
131 | "*Non-nil means a sentence will end without a period. | |
132 | For example, a sentence in Thai text ends with double space but | |
32e40471 JL |
133 | without a period. |
134 | ||
135 | This value is used by the function `sentence-end' to construct the | |
51d7369e LT |
136 | regexp describing the end of a sentence, when the value of the variable |
137 | `sentence-end' is nil. See Info node `(elisp)Standard Regexps'." | |
629261c7 SM |
138 | :type 'boolean |
139 | :group 'fill) | |
140 | ||
9402a4b9 KH |
141 | (defcustom sentence-end-without-space |
142 | "\e$B!#!%!)!*\e$A!##.#?#!\e$(0!$!%!)!*\e$(G!$!%!)!*\e(B" | |
51d7369e | 143 | "*String of characters that end sentence without following spaces. |
32e40471 JL |
144 | |
145 | This value is used by the function `sentence-end' to construct the | |
51d7369e LT |
146 | regexp describing the end of a sentence, when the value of the variable |
147 | `sentence-end' is nil. See Info node `(elisp)Standard Regexps'." | |
9402a4b9 KH |
148 | :group 'paragraphs |
149 | :type 'string) | |
150 | ||
32e40471 | 151 | (defcustom sentence-end nil |
e4550233 | 152 | "*Regexp describing the end of a sentence. |
ac1470eb | 153 | The value includes the whitespace following the sentence. |
51534471 JB |
154 | All paragraph boundaries also end sentences, regardless. |
155 | ||
32e40471 JL |
156 | The value nil means to use the default value defined by the |
157 | function `sentence-end'. You should always use this function | |
158 | to obtain the value of this variable." | |
e4550233 | 159 | :group 'paragraphs |
32e40471 JL |
160 | :type '(choice regexp (const :tag "Use default value" nil))) |
161 | ||
f4b80eb1 RS |
162 | (defcustom sentence-end-base "[.?!][]\"'\xd0c9\x5397d)}]*" |
163 | "*Regexp matching the basic end of a sentence, not including following space." | |
164 | :group 'paragraphs | |
165 | :type 'string | |
166 | :version "22.1") | |
167 | ||
32e40471 JL |
168 | (defun sentence-end () |
169 | "Return the regexp describing the end of a sentence. | |
170 | ||
171 | This function returns either the value of the variable `sentence-end' | |
172 | if it is non-nil, or the default value constructed from the | |
f4b80eb1 RS |
173 | variables `sentence-end-base', `sentence-end-double-space', |
174 | `sentence-end-without-period' and `sentence-end-without-space'. | |
175 | ||
176 | The default value specifies that in order to be recognized as the | |
177 | end of a sentence, the ending period, question mark, or exclamation point | |
178 | must be followed by two spaces, with perhaps some closing delimiters | |
179 | in between. See Info node `(elisp)Standard Regexps'." | |
32e40471 JL |
180 | (or sentence-end |
181 | (concat (if sentence-end-without-period "\\w \\|") | |
f4b80eb1 RS |
182 | "\\(" |
183 | sentence-end-base | |
32e40471 JL |
184 | (if sentence-end-double-space |
185 | "\\($\\| $\\|\t\\| \\)" "\\($\\|[\t ]\\)") | |
f4b80eb1 RS |
186 | "\\|[" sentence-end-without-space "]+" |
187 | "\\)" | |
32e40471 | 188 | "[ \t\n]*"))) |
e4550233 RS |
189 | |
190 | (defcustom page-delimiter "^\014" | |
191 | "*Regexp describing line-beginnings that separate pages." | |
192 | :group 'paragraphs | |
193 | :type 'regexp) | |
194 | ||
195 | (defcustom paragraph-ignore-fill-prefix nil | |
196 | "*Non-nil means the paragraph commands are not affected by `fill-prefix'. | |
197 | This is desirable in modes where blank lines are the paragraph delimiters." | |
198 | :group 'paragraphs | |
199 | :type 'boolean) | |
77176e73 | 200 | |
a2535589 JA |
201 | (defun forward-paragraph (&optional arg) |
202 | "Move forward to end of paragraph. | |
94d63a23 RS |
203 | With argument ARG, do it ARG times; |
204 | a negative argument ARG = -N means move backward N paragraphs. | |
a2535589 JA |
205 | |
206 | A line which `paragraph-start' matches either separates paragraphs | |
207 | \(if `paragraph-separate' matches it also) or is the first line of a paragraph. | |
208 | A paragraph end is the beginning of a line which is not part of the paragraph | |
de24b077 SM |
209 | to which the end of the previous line belongs, or the end of the buffer. |
210 | Returns the count of paragraphs left to move." | |
a2535589 JA |
211 | (interactive "p") |
212 | (or arg (setq arg 1)) | |
17cca868 GM |
213 | (let* ((opoint (point)) |
214 | (fill-prefix-regexp | |
a2535589 JA |
215 | (and fill-prefix (not (equal fill-prefix "")) |
216 | (not paragraph-ignore-fill-prefix) | |
217 | (regexp-quote fill-prefix))) | |
55cc5677 BG |
218 | ;; Remove ^ from paragraph-start and paragraph-sep if they are there. |
219 | ;; These regexps shouldn't be anchored, because we look for them | |
220 | ;; starting at the left-margin. This allows paragraph commands to | |
221 | ;; work normally with indented text. | |
222 | ;; This hack will not find problem cases like "whatever\\|^something". | |
629261c7 SM |
223 | (parstart (if (and (not (equal "" paragraph-start)) |
224 | (equal ?^ (aref paragraph-start 0))) | |
225 | (substring paragraph-start 1) | |
226 | paragraph-start)) | |
227 | (parsep (if (and (not (equal "" paragraph-separate)) | |
228 | (equal ?^ (aref paragraph-separate 0))) | |
229 | (substring paragraph-separate 1) | |
230 | paragraph-separate)) | |
231 | (parsep | |
a2535589 | 232 | (if fill-prefix-regexp |
629261c7 | 233 | (concat parsep "\\|" |
a2535589 | 234 | fill-prefix-regexp "[ \t]*$") |
629261c7 | 235 | parsep)) |
55cc5677 | 236 | ;; This is used for searching. |
629261c7 | 237 | (sp-parstart (concat "^[ \t]*\\(?:" parstart "\\|" parsep "\\)")) |
eeb0f327 | 238 | start found-start) |
8a2a4ced | 239 | (while (and (< arg 0) (not (bobp))) |
629261c7 | 240 | (if (and (not (looking-at parsep)) |
a37669ec | 241 | (re-search-backward "^\n" (max (1- (point)) (point-min)) t) |
629261c7 | 242 | (looking-at parsep)) |
de24b077 | 243 | (setq arg (1+ arg)) |
2be01738 | 244 | (setq start (point)) |
8a2a4ced | 245 | ;; Move back over paragraph-separating lines. |
a2535589 | 246 | (forward-char -1) (beginning-of-line) |
a37669ec | 247 | (while (and (not (bobp)) |
55cc5677 | 248 | (progn (move-to-left-margin) |
629261c7 | 249 | (looking-at parsep))) |
3f5dc0b0 | 250 | (forward-line -1)) |
8a2a4ced RS |
251 | (if (bobp) |
252 | nil | |
de24b077 | 253 | (setq arg (1+ arg)) |
8a2a4ced RS |
254 | ;; Go to end of the previous (non-separating) line. |
255 | (end-of-line) | |
256 | ;; Search back for line that starts or separates paragraphs. | |
257 | (if (if fill-prefix-regexp | |
629261c7 | 258 | ;; There is a fill prefix; it overrides parstart. |
2be01738 | 259 | (let (multiple-lines) |
55cc5677 BG |
260 | (while (and (progn (beginning-of-line) (not (bobp))) |
261 | (progn (move-to-left-margin) | |
629261c7 | 262 | (not (looking-at parsep))) |
55cc5677 | 263 | (looking-at fill-prefix-regexp)) |
3f5dc0b0 SM |
264 | (unless (= (point) start) |
265 | (setq multiple-lines t)) | |
55cc5677 | 266 | (forward-line -1)) |
2be01738 | 267 | (move-to-left-margin) |
629261c7 SM |
268 | ;; This deleted code caused a long hanging-indent line |
269 | ;; not to be filled together with the following lines. | |
270 | ;; ;; Don't move back over a line before the paragraph | |
271 | ;; ;; which doesn't start with fill-prefix | |
272 | ;; ;; unless that is the only line we've moved over. | |
273 | ;; (and (not (looking-at fill-prefix-regexp)) | |
274 | ;; multiple-lines | |
275 | ;; (forward-line 1)) | |
2be01738 | 276 | (not (bobp))) |
629261c7 | 277 | (while (and (re-search-backward sp-parstart nil 1) |
eeb0f327 | 278 | (setq found-start t) |
55cc5677 | 279 | ;; Found a candidate, but need to check if it is a |
629261c7 | 280 | ;; REAL parstart. |
55cc5677 BG |
281 | (progn (setq start (point)) |
282 | (move-to-left-margin) | |
629261c7 SM |
283 | (not (looking-at parsep))) |
284 | (not (and (looking-at parstart) | |
285 | (or (not use-hard-newlines) | |
30857a61 LT |
286 | (bobp) |
287 | (get-text-property | |
288 | (1- start) 'hard))))) | |
eeb0f327 | 289 | (setq found-start nil) |
55cc5677 | 290 | (goto-char start)) |
eeb0f327 | 291 | found-start) |
de24b077 SM |
292 | ;; Found one. |
293 | (progn | |
8a2a4ced RS |
294 | ;; Move forward over paragraph separators. |
295 | ;; We know this cannot reach the place we started | |
296 | ;; because we know we moved back over a non-separator. | |
55cc5677 BG |
297 | (while (and (not (eobp)) |
298 | (progn (move-to-left-margin) | |
629261c7 | 299 | (looking-at parsep))) |
8a2a4ced | 300 | (forward-line 1)) |
55cc5677 BG |
301 | ;; If line before paragraph is just margin, back up to there. |
302 | (end-of-line 0) | |
303 | (if (> (current-column) (current-left-margin)) | |
304 | (forward-char 1) | |
305 | (skip-chars-backward " \t") | |
306 | (if (not (bolp)) | |
307 | (forward-line 1)))) | |
8a2a4ced | 308 | ;; No starter or separator line => use buffer beg. |
de24b077 | 309 | (goto-char (point-min)))))) |
629261c7 | 310 | |
8a2a4ced | 311 | (while (and (> arg 0) (not (eobp))) |
de24b077 SM |
312 | ;; Move forward over separator lines... |
313 | (while (and (not (eobp)) | |
314 | (progn (move-to-left-margin) (not (eobp))) | |
315 | (looking-at parsep)) | |
316 | (forward-line 1)) | |
317 | (unless (eobp) (setq arg (1- arg))) | |
318 | ;; ... and one more line. | |
319 | (forward-line 1) | |
a2535589 | 320 | (if fill-prefix-regexp |
629261c7 | 321 | ;; There is a fill prefix; it overrides parstart. |
a2535589 | 322 | (while (and (not (eobp)) |
55cc5677 | 323 | (progn (move-to-left-margin) (not (eobp))) |
629261c7 | 324 | (not (looking-at parsep)) |
a2535589 JA |
325 | (looking-at fill-prefix-regexp)) |
326 | (forward-line 1)) | |
629261c7 | 327 | (while (and (re-search-forward sp-parstart nil 1) |
55cc5677 BG |
328 | (progn (setq start (match-beginning 0)) |
329 | (goto-char start) | |
4669fb3c RS |
330 | (not (eobp))) |
331 | (progn (move-to-left-margin) | |
629261c7 SM |
332 | (not (looking-at parsep))) |
333 | (or (not (looking-at parstart)) | |
55cc5677 BG |
334 | (and use-hard-newlines |
335 | (not (get-text-property (1- start) 'hard))))) | |
a37669ec RS |
336 | (forward-char 1)) |
337 | (if (< (point) (point-max)) | |
de24b077 | 338 | (goto-char start)))) |
7b462fc6 SM |
339 | (constrain-to-field nil opoint t) |
340 | ;; Return the number of steps that could not be done. | |
341 | arg)) | |
a2535589 JA |
342 | |
343 | (defun backward-paragraph (&optional arg) | |
344 | "Move backward to start of paragraph. | |
94d63a23 RS |
345 | With argument ARG, do it ARG times; |
346 | a negative argument ARG = -N means move forward N paragraphs. | |
a2535589 | 347 | |
23b34992 BP |
348 | A paragraph start is the beginning of a line which is a |
349 | `first-line-of-paragraph' or which is ordinary text and follows a | |
350 | paragraph-separating line; except: if the first real line of a | |
351 | paragraph is preceded by a blank line, the paragraph starts at that | |
352 | blank line. | |
353 | ||
354 | See `forward-paragraph' for more information." | |
a2535589 JA |
355 | (interactive "p") |
356 | (or arg (setq arg 1)) | |
357 | (forward-paragraph (- arg))) | |
358 | ||
94ed0931 | 359 | (defun mark-paragraph (&optional arg allow-extend) |
a2535589 | 360 | "Put point at beginning of this paragraph, mark at end. |
f48b59a2 KG |
361 | The paragraph marked is the one that contains point or follows point. |
362 | ||
363 | With argument ARG, puts mark at end of a following paragraph, so that | |
364 | the number of paragraphs marked equals ARG. | |
365 | ||
366 | If ARG is negative, point is put at end of this paragraph, mark is put | |
cad113ae KG |
367 | at beginning of this or a previous paragraph. |
368 | ||
94ed0931 | 369 | Interactively, if this command is repeated |
3731a850 | 370 | or (in Transient Mark mode) if the mark is active, |
94ed0931 RS |
371 | it marks the next ARG paragraphs after the ones already marked." |
372 | (interactive "p\np") | |
be0d25b6 KG |
373 | (unless arg (setq arg 1)) |
374 | (when (zerop arg) | |
375 | (error "Cannot mark zero paragraphs")) | |
94ed0931 RS |
376 | (cond ((and allow-extend |
377 | (or (and (eq last-command this-command) (mark t)) | |
378 | (and transient-mark-mode mark-active))) | |
be0d25b6 KG |
379 | (set-mark |
380 | (save-excursion | |
381 | (goto-char (mark)) | |
382 | (forward-paragraph arg) | |
383 | (point)))) | |
384 | (t | |
385 | (forward-paragraph arg) | |
386 | (push-mark nil t t) | |
387 | (backward-paragraph arg)))) | |
a2535589 JA |
388 | |
389 | (defun kill-paragraph (arg) | |
390 | "Kill forward to end of paragraph. | |
391 | With arg N, kill forward to Nth end of paragraph; | |
392 | negative arg -N means kill backward to Nth start of paragraph." | |
275cf1b2 | 393 | (interactive "p") |
8d6eaa00 | 394 | (kill-region (point) (progn (forward-paragraph arg) (point)))) |
a2535589 JA |
395 | |
396 | (defun backward-kill-paragraph (arg) | |
397 | "Kill back to start of paragraph. | |
398 | With arg N, kill back to Nth start of paragraph; | |
399 | negative arg -N means kill forward to Nth end of paragraph." | |
275cf1b2 | 400 | (interactive "p") |
17cca868 | 401 | (kill-region (point) (progn (backward-paragraph arg) (point)))) |
a2535589 JA |
402 | |
403 | (defun transpose-paragraphs (arg) | |
404 | "Interchange this (or next) paragraph with previous one." | |
405 | (interactive "*p") | |
406 | (transpose-subr 'forward-paragraph arg)) | |
407 | ||
408 | (defun start-of-paragraph-text () | |
409 | (let ((opoint (point)) npoint) | |
410 | (forward-paragraph -1) | |
411 | (setq npoint (point)) | |
412 | (skip-chars-forward " \t\n") | |
b4e6c391 RS |
413 | ;; If the range of blank lines found spans the original start point, |
414 | ;; try again from the beginning of it. | |
415 | ;; Must be careful to avoid infinite loop | |
416 | ;; when following a single return at start of buffer. | |
417 | (if (and (>= (point) opoint) (< npoint opoint)) | |
a2535589 JA |
418 | (progn |
419 | (goto-char npoint) | |
420 | (if (> npoint (point-min)) | |
421 | (start-of-paragraph-text)))))) | |
422 | ||
423 | (defun end-of-paragraph-text () | |
424 | (let ((opoint (point))) | |
425 | (forward-paragraph 1) | |
426 | (if (eq (preceding-char) ?\n) (forward-char -1)) | |
427 | (if (<= (point) opoint) | |
428 | (progn | |
429 | (forward-char 1) | |
430 | (if (< (point) (point-max)) | |
431 | (end-of-paragraph-text)))))) | |
432 | ||
433 | (defun forward-sentence (&optional arg) | |
51534471 | 434 | "Move forward to next `sentence-end'. With argument, repeat. |
23b34992 | 435 | With negative argument, move backward repeatedly to `sentence-beginning'. |
a2535589 | 436 | |
23b34992 BP |
437 | The variable `sentence-end' is a regular expression that matches ends of |
438 | sentences. Also, every paragraph boundary terminates sentences as well." | |
a2535589 JA |
439 | (interactive "p") |
440 | (or arg (setq arg 1)) | |
32e40471 JL |
441 | (let ((opoint (point)) |
442 | (sentence-end (sentence-end))) | |
17cca868 | 443 | (while (< arg 0) |
ea2c6478 GM |
444 | (let ((pos (point)) |
445 | (par-beg (save-excursion (start-of-paragraph-text) (point)))) | |
446 | (if (and (re-search-backward sentence-end par-beg t) | |
447 | (or (< (match-end 0) pos) | |
448 | (re-search-backward sentence-end par-beg t))) | |
449 | (goto-char (match-end 0)) | |
17cca868 GM |
450 | (goto-char par-beg))) |
451 | (setq arg (1+ arg))) | |
452 | (while (> arg 0) | |
453 | (let ((par-end (save-excursion (end-of-paragraph-text) (point)))) | |
454 | (if (re-search-forward sentence-end par-end t) | |
455 | (skip-chars-backward " \t\n") | |
456 | (goto-char par-end))) | |
457 | (setq arg (1- arg))) | |
458 | (constrain-to-field nil opoint t))) | |
a2535589 | 459 | |
d320a41d | 460 | (defun repunctuate-sentences () |
d320a41d RS |
461 | "Put two spaces at the end of sentences from point to the end of buffer. |
462 | It works using `query-replace-regexp'." | |
279dffd6 | 463 | (interactive) |
d320a41d RS |
464 | (query-replace-regexp "\\([]\"')]?\\)\\([.?!]\\)\\([]\"')]?\\) +" |
465 | "\\1\\2\\3 ")) | |
466 | ||
467 | ||
a2535589 JA |
468 | (defun backward-sentence (&optional arg) |
469 | "Move backward to start of sentence. With arg, do it arg times. | |
23b34992 | 470 | See `forward-sentence' for more information." |
a2535589 JA |
471 | (interactive "p") |
472 | (or arg (setq arg 1)) | |
473 | (forward-sentence (- arg))) | |
474 | ||
475 | (defun kill-sentence (&optional arg) | |
476 | "Kill from point to end of sentence. | |
477 | With arg, repeat; negative arg -N means kill back to Nth start of sentence." | |
275cf1b2 | 478 | (interactive "p") |
8d6eaa00 | 479 | (kill-region (point) (progn (forward-sentence arg) (point)))) |
a2535589 JA |
480 | |
481 | (defun backward-kill-sentence (&optional arg) | |
482 | "Kill back from point to start of sentence. | |
483 | With arg, repeat, or kill forward to Nth end of sentence if negative arg -N." | |
275cf1b2 | 484 | (interactive "p") |
17cca868 | 485 | (kill-region (point) (progn (backward-sentence arg) (point)))) |
a2535589 JA |
486 | |
487 | (defun mark-end-of-sentence (arg) | |
cad113ae KG |
488 | "Put mark at end of sentence. Arg works as in `forward-sentence'. |
489 | If this command is repeated, it marks the next ARG sentences after the | |
490 | ones already marked." | |
a2535589 JA |
491 | (interactive "p") |
492 | (push-mark | |
cad113ae KG |
493 | (save-excursion |
494 | (if (and (eq last-command this-command) (mark t)) | |
495 | (goto-char (mark))) | |
496 | (forward-sentence arg) | |
497 | (point)) | |
498 | nil t)) | |
a2535589 JA |
499 | |
500 | (defun transpose-sentences (arg) | |
501 | "Interchange this (next) and previous sentence." | |
502 | (interactive "*p") | |
503 | (transpose-subr 'forward-sentence arg)) | |
6594deb0 | 504 | |
cc4fe8d2 KH |
505 | ;;; Local Variables: |
506 | ;;; coding: iso-2022-7bit | |
507 | ;;; End: | |
508 | ||
ab5796a9 | 509 | ;;; arch-tag: e727eb1a-527a-4464-b9d7-9d3ec0d1a575 |
6594deb0 | 510 | ;;; paragraphs.el ends here |