|
0
|
1 ;;; fill.el --- fill commands for XEmacs.
|
|
|
2
|
|
112
|
3 ;; Copyright (C) 1985, 86, 92, 94, 95, 1997 Free Software Foundation, Inc.
|
|
0
|
4
|
|
|
5 ;; Keywords: wp
|
|
|
6
|
|
|
7 ;; This file is part of XEmacs.
|
|
|
8
|
|
|
9 ;; XEmacs is free software; you can redistribute it and/or modify it
|
|
|
10 ;; under the terms of the GNU General Public License as published by
|
|
|
11 ;; the Free Software Foundation; either version 2, or (at your option)
|
|
|
12 ;; any later version.
|
|
|
13
|
|
|
14 ;; XEmacs is distributed in the hope that it will be useful, but
|
|
|
15 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
17 ;; General Public License for more details.
|
|
|
18
|
|
|
19 ;; You should have received a copy of the GNU General Public License
|
|
|
20 ;; along with XEmacs; see the file COPYING. If not, write to the Free
|
|
2
|
21 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
|
|
|
22 ;; 02111-1307, USA.
|
|
0
|
23
|
|
2
|
24 ;;; Synched up with: FSF 19.34.
|
|
0
|
25
|
|
|
26 ;;; Commentary:
|
|
|
27
|
|
|
28 ;; All the commands for filling text. These are documented in the XEmacs
|
|
|
29 ;; Reference Manual.
|
|
|
30
|
|
110
|
31 ;; 97/3/14 Jareth Hein (jhod@po.iijnet.or.jp) added functions for kinsoku (asian text
|
|
|
32 ;; line break processing)
|
|
|
33
|
|
0
|
34 ;;; Code:
|
|
|
35
|
|
2
|
36 (defconst fill-individual-varying-indent nil
|
|
0
|
37 "*Controls criterion for a new paragraph in `fill-individual-paragraphs'.
|
|
|
38 Non-nil means changing indent doesn't end a paragraph.
|
|
|
39 That mode can handle paragraphs with extra indentation on the first line,
|
|
|
40 but it requires separator lines between paragraphs.
|
|
|
41 A value of nil means that any change in indentation starts a new paragraph.")
|
|
|
42
|
|
2
|
43 (defconst sentence-end-double-space t
|
|
70
|
44 "*Non-nil means a single space does not end a sentence.")
|
|
0
|
45
|
|
|
46 (defconst colon-double-space nil
|
|
|
47 "*Non-nil means put two spaces after a colon when filling.")
|
|
|
48
|
|
|
49 (defvar fill-paragraph-function nil
|
|
2
|
50 "Mode-specific function to fill a paragraph, or nil if there is none.
|
|
|
51 If the function returns nil, then `fill-paragraph' does its normal work.")
|
|
0
|
52
|
|
|
53 (defun set-fill-prefix ()
|
|
|
54 "Set the fill prefix to the current line up to point.
|
|
2
|
55 Filling expects lines to start with the fill prefix and
|
|
|
56 reinserts the fill prefix in each resulting line."
|
|
0
|
57 (interactive)
|
|
|
58 (setq fill-prefix (buffer-substring
|
|
|
59 (save-excursion (move-to-left-margin) (point))
|
|
|
60 (point)))
|
|
|
61 (if (equal fill-prefix "")
|
|
|
62 (setq fill-prefix nil))
|
|
|
63 (if fill-prefix
|
|
|
64 (message "fill-prefix: \"%s\"" fill-prefix)
|
|
|
65 (message "fill-prefix cancelled")))
|
|
|
66
|
|
2
|
67 (defconst adaptive-fill-mode t
|
|
0
|
68 "*Non-nil means determine a paragraph's fill prefix from its text.")
|
|
|
69
|
|
|
70 ;; #### - this is still weak. Yeah, there's filladapt, but this should
|
|
|
71 ;; still be better... --Stig
|
|
2
|
72 (defconst adaptive-fill-regexp (purecopy "[ \t]*\\([#;>*]+ +\\)?")
|
|
0
|
73 "*Regexp to match text at start of line that constitutes indentation.
|
|
|
74 If Adaptive Fill mode is enabled, whatever text matches this pattern
|
|
|
75 on the second line of a paragraph is used as the standard indentation
|
|
|
76 for the paragraph. If the paragraph has just one line, the indentation
|
|
|
77 is taken from that line.")
|
|
|
78
|
|
|
79 (defvar adaptive-fill-function nil
|
|
|
80 "*Function to call to choose a fill prefix for a paragraph.
|
|
|
81 This function is used when `adaptive-fill-regexp' does not match.")
|
|
|
82
|
|
110
|
83 ;; Added for kinsoku processing. Use this instead of
|
|
|
84 ;; (skip-chars-backward "^ \t\n")
|
|
|
85 ;; (skip-chars-backward "^ \n" linebeg)
|
|
|
86 (defun fill-move-backward-to-break-point (regexp &optional lim)
|
|
|
87 (let ((opoint (point)))
|
|
|
88 ;; 93.8.23 by kawamoto@ics.es.osaka-u.ac.jp
|
|
|
89 ;; case of first 'word' being longer than fill-column
|
|
|
90 (if (not (re-search-backward regexp lim 'move))
|
|
|
91 nil
|
|
|
92 ;; we have skipped backward SPC or WAN (word-across-newline). So move point forward again.
|
|
|
93 (forward-char)
|
|
112
|
94 (if (< opoint (point))
|
|
110
|
95 (forward-char -1)))))
|
|
|
96
|
|
|
97 ;; Added for kinsoku processing. Use instead of
|
|
|
98 ;; (re-search-forward "[ \t]" opoint t)
|
|
|
99 ;; (skip-chars-forward "^ \n")
|
|
|
100 ;; (skip-chars-forward "^ \n")
|
|
|
101 (defun fill-move-forward-to-break-point (regexp &optional lim)
|
|
|
102 (let ((opoint (point)))
|
|
|
103 (if (not (re-search-forward regexp lim 'move))
|
|
|
104 nil
|
|
|
105 (forward-char -1)
|
|
112
|
106 (if (< (point) opoint)
|
|
110
|
107 (forward-char))))
|
|
|
108 (if (featurep 'mule) (kinsoku-process-extend)))
|
|
|
109
|
|
|
110 (defun fill-end-of-sentence-p ()
|
|
|
111 (save-excursion
|
|
|
112 (skip-chars-backward " ]})\"'")
|
|
|
113 (memq (preceding-char) '(?. ?? ?!))))
|
|
|
114
|
|
0
|
115 (defun current-fill-column ()
|
|
|
116 "Return the fill-column to use for this line.
|
|
|
117 The fill-column to use for a buffer is stored in the variable `fill-column',
|
|
|
118 but can be locally modified by the `right-margin' text property, which is
|
|
|
119 subtracted from `fill-column'.
|
|
|
120
|
|
|
121 The fill column to use for a line is the first column at which the column
|
|
|
122 number equals or exceeds the local fill-column - right-margin difference."
|
|
|
123 (save-excursion
|
|
|
124 (if fill-column
|
|
|
125 (let* ((here (progn (beginning-of-line) (point)))
|
|
|
126 (here-col 0)
|
|
|
127 (eol (progn (end-of-line) (point)))
|
|
|
128 margin fill-col change col)
|
|
|
129 ;; Look separately at each region of line with a different right-margin.
|
|
|
130 (while (and (setq margin (get-text-property here 'right-margin)
|
|
|
131 fill-col (- fill-column (or margin 0))
|
|
|
132 change (text-property-not-all
|
|
|
133 here eol 'right-margin margin))
|
|
|
134 (progn (goto-char (1- change))
|
|
|
135 (setq col (current-column))
|
|
|
136 (< col fill-col)))
|
|
|
137 (setq here change
|
|
|
138 here-col col))
|
|
|
139 (max here-col fill-col)))))
|
|
|
140
|
|
|
141 (defun canonically-space-region (beg end)
|
|
|
142 "Remove extra spaces between words in region.
|
|
2
|
143 Leave one space between words, two at end of sentences or after colons
|
|
110
|
144 \(depending on values of `sentence-end-double-space' and `colon-double-space').
|
|
|
145 Remove indentation from each line."
|
|
0
|
146 (interactive "r")
|
|
110
|
147 ;;;### 97/3/14 jhod: Do I have to add anything here for kinsoku?
|
|
0
|
148 (save-excursion
|
|
|
149 (goto-char beg)
|
|
|
150 ;; XEmacs - (ENE/stig from fa-extras.el): Skip the start of a comment.
|
|
|
151 (and comment-start-skip
|
|
|
152 (looking-at comment-start-skip)
|
|
|
153 (goto-char (match-end 0)))
|
|
|
154 ;; Nuke tabs; they get screwed up in a fill.
|
|
|
155 ;; This is quick, but loses when a tab follows the end of a sentence.
|
|
|
156 ;; Actually, it is difficult to tell that from "Mr.\tSmith".
|
|
|
157 ;; Blame the typist.
|
|
|
158 (subst-char-in-region beg end ?\t ?\ )
|
|
|
159 (while (and (< (point) end)
|
|
|
160 (re-search-forward " *" end t))
|
|
|
161 (delete-region
|
|
|
162 (+ (match-beginning 0)
|
|
|
163 ;; Determine number of spaces to leave:
|
|
|
164 (save-excursion
|
|
|
165 (skip-chars-backward " ]})\"'")
|
|
|
166 (cond ((and sentence-end-double-space
|
|
|
167 (memq (preceding-char) '(?. ?? ?!))) 2)
|
|
|
168 ((and colon-double-space
|
|
|
169 (= (preceding-char) ?:)) 2)
|
|
|
170 ((char-equal (preceding-char) ?\n) 0)
|
|
|
171 (t 1))))
|
|
|
172 (match-end 0)))
|
|
|
173 ;; Make sure sentences ending at end of line get an extra space.
|
|
|
174 ;; loses on split abbrevs ("Mr.\nSmith")
|
|
|
175 (goto-char beg)
|
|
|
176 (while (and (< (point) end)
|
|
|
177 (re-search-forward "[.?!][])}\"']*$" end t))
|
|
2
|
178 ;; We insert before markers in case a caller such as
|
|
|
179 ;; do-auto-fill has done a save-excursion with point at the end
|
|
|
180 ;; of the line and wants it to stay at the end of the line.
|
|
0
|
181 (insert ? ))))
|
|
2
|
182 ;; XEmacs: we don't have this function.
|
|
|
183 ;; (insert-before-markers-and-inherit ? ))))
|
|
0
|
184
|
|
|
185 ;; XEmacs -- added DONT-SKIP-FIRST. Port of older code changes by Stig.
|
|
|
186 ;; #### probably this junk is broken -- do-auto-fill doesn't actually use
|
|
|
187 ;; it. If so, it should be removed.
|
|
110
|
188
|
|
0
|
189 (defun fill-context-prefix (from to &optional first-line-regexp
|
|
|
190 dont-skip-first)
|
|
|
191 "Compute a fill prefix from the text between FROM and TO.
|
|
2
|
192 This uses the variables `adaptive-fill-prefix' and `adaptive-fill-function'.
|
|
0
|
193 If FIRST-LINE-REGEXP is non-nil, then when taking a prefix from the
|
|
|
194 first line, insist it must match FIRST-LINE-REGEXP."
|
|
|
195 (save-excursion
|
|
|
196 (goto-char from)
|
|
|
197 (if (eolp) (forward-line 1))
|
|
|
198 ;; Move to the second line unless there is just one.
|
|
|
199 (let ((firstline (point))
|
|
|
200 ;; Non-nil if we are on the second line.
|
|
|
201 at-second
|
|
|
202 result)
|
|
2
|
203 ;; XEmacs change
|
|
0
|
204 (if (not dont-skip-first)
|
|
|
205 (forward-line 1))
|
|
|
206 (if (>= (point) to)
|
|
|
207 (goto-char firstline)
|
|
|
208 (setq at-second t))
|
|
|
209 (move-to-left-margin)
|
|
2
|
210 ;; XEmacs change
|
|
0
|
211 (let ((start (point))
|
|
110
|
212 ; jhod: no longer used?
|
|
|
213 ;(eol (save-excursion (end-of-line) (point)))
|
|
|
214 )
|
|
0
|
215 (setq result
|
|
|
216 (if (not (looking-at paragraph-start))
|
|
|
217 (cond ((and adaptive-fill-regexp (looking-at adaptive-fill-regexp))
|
|
|
218 (buffer-substring-no-properties start (match-end 0)))
|
|
|
219 (adaptive-fill-function (funcall adaptive-fill-function)))))
|
|
|
220 (and result
|
|
|
221 (or at-second
|
|
|
222 (null first-line-regexp)
|
|
|
223 (string-match first-line-regexp result))
|
|
|
224 result)))))
|
|
|
225
|
|
|
226 ;; XEmacs (stig) - this is pulled out of fill-region-as-paragraph so that it
|
|
|
227 ;; can also be called from do-auto-fill
|
|
|
228 ;; #### But it's not used there. Chuck pulled it out because it broke things.
|
|
|
229 (defun maybe-adapt-fill-prefix (&optional from to dont-skip-first)
|
|
|
230 (if (and adaptive-fill-mode
|
|
|
231 (or (null fill-prefix) (string= fill-prefix "")))
|
|
|
232 (setq fill-prefix (fill-context-prefix from to nil dont-skip-first))))
|
|
|
233
|
|
2
|
234 (defun fill-region-as-paragraph (from to &optional justify
|
|
|
235 nosqueeze squeeze-after)
|
|
0
|
236 "Fill the region as one paragraph.
|
|
|
237 It removes any paragraph breaks in the region and extra newlines at the end,
|
|
|
238 indents and fills lines between the margins given by the
|
|
|
239 `current-left-margin' and `current-fill-column' functions.
|
|
|
240 It leaves point at the beginning of the line following the paragraph.
|
|
|
241
|
|
|
242 Normally performs justification according to the `current-justification'
|
|
|
243 function, but with a prefix arg, does full justification instead.
|
|
|
244
|
|
|
245 From a program, optional third arg JUSTIFY can specify any type of
|
|
108
|
246 justification. Fourth arg NOSQUEEZE non-nil means not to make spaces
|
|
2
|
247 between words canonical before filling. Fifth arg SQUEEZE-AFTER, if non-nil,
|
|
|
248 means don't canonicalize spaces before that position.
|
|
0
|
249
|
|
|
250 If `sentence-end-double-space' is non-nil, then period followed by one
|
|
|
251 space does not end a sentence, so don't break a line there."
|
|
|
252 (interactive
|
|
|
253 (progn
|
|
|
254 ;; XEmacs addition:
|
|
|
255 (barf-if-buffer-read-only nil (region-beginning) (region-end))
|
|
|
256 (list (region-beginning) (region-end)
|
|
|
257 (if current-prefix-arg 'full))))
|
|
|
258 ;; Arrange for undoing the fill to restore point.
|
|
|
259 (if (and buffer-undo-list (not (eq buffer-undo-list t)))
|
|
|
260 (setq buffer-undo-list (cons (point) buffer-undo-list)))
|
|
|
261
|
|
|
262 ;; Make sure "to" is the endpoint.
|
|
|
263 (goto-char (min from to))
|
|
|
264 (setq to (max from to))
|
|
|
265 ;; Ignore blank lines at beginning of region.
|
|
|
266 (skip-chars-forward " \t\n")
|
|
|
267
|
|
|
268 (let ((from-plus-indent (point))
|
|
|
269 (oneleft nil))
|
|
|
270
|
|
|
271 (beginning-of-line)
|
|
|
272 (setq from (point))
|
|
|
273
|
|
|
274 ;; Delete all but one soft newline at end of region.
|
|
2
|
275 ;; And leave TO before that one.
|
|
0
|
276 (goto-char to)
|
|
|
277 (while (and (> (point) from) (eq ?\n (char-after (1- (point)))))
|
|
|
278 (if (and oneleft
|
|
|
279 (not (and use-hard-newlines
|
|
|
280 (get-text-property (1- (point)) 'hard))))
|
|
|
281 (delete-backward-char 1)
|
|
|
282 (backward-char 1)
|
|
|
283 (setq oneleft t)))
|
|
|
284 (setq to (point))
|
|
|
285
|
|
|
286 ;; If there was no newline, and there is text in the paragraph, then
|
|
|
287 ;; create a newline.
|
|
|
288 (if (and (not oneleft) (> to from-plus-indent))
|
|
|
289 (newline))
|
|
|
290 (goto-char from-plus-indent))
|
|
|
291
|
|
|
292 (if (not (> to (point)))
|
|
|
293 nil ; There is no paragraph, only whitespace: exit now.
|
|
|
294
|
|
|
295 (or justify (setq justify (current-justification)))
|
|
|
296
|
|
|
297 ;; Don't let Adaptive Fill mode alter the fill prefix permanently.
|
|
|
298 (let ((fill-prefix fill-prefix))
|
|
|
299 ;; Figure out how this paragraph is indented, if desired.
|
|
|
300 ;; XEmacs: move some code here to a separate function.
|
|
|
301 (maybe-adapt-fill-prefix from to t)
|
|
|
302
|
|
|
303 (save-restriction
|
|
|
304 (goto-char from)
|
|
|
305 (beginning-of-line)
|
|
|
306 (narrow-to-region (point) to)
|
|
|
307
|
|
|
308 (if (not justify) ; filling disabled: just check indentation
|
|
|
309 (progn
|
|
|
310 (goto-char from)
|
|
|
311 (while (not (eobp))
|
|
|
312 (if (and (not (eolp))
|
|
|
313 (< (current-indentation) (current-left-margin)))
|
|
|
314 (indent-to-left-margin))
|
|
|
315 (forward-line 1)))
|
|
|
316
|
|
|
317 (if use-hard-newlines
|
|
|
318 (remove-text-properties from (point-max) '(hard nil)))
|
|
|
319 ;; Make sure first line is indented (at least) to left margin...
|
|
|
320 (if (or (memq justify '(right center))
|
|
|
321 (< (current-indentation) (current-left-margin)))
|
|
|
322 (indent-to-left-margin))
|
|
|
323 ;; Delete the fill prefix from every line except the first.
|
|
|
324 ;; The first line may not even have a fill prefix.
|
|
|
325 (goto-char from)
|
|
|
326 (let ((fpre (and fill-prefix (not (equal fill-prefix ""))
|
|
|
327 (concat "[ \t]*"
|
|
|
328 (regexp-quote fill-prefix)
|
|
|
329 "[ \t]*"))))
|
|
|
330 (and fpre
|
|
|
331 (progn
|
|
|
332 (if (>= (+ (current-left-margin) (length fill-prefix))
|
|
|
333 (current-fill-column))
|
|
|
334 (error "fill-prefix too long for specified width"))
|
|
|
335 (goto-char from)
|
|
|
336 (forward-line 1)
|
|
|
337 (while (not (eobp))
|
|
|
338 (if (looking-at fpre)
|
|
|
339 (delete-region (point) (match-end 0)))
|
|
|
340 (forward-line 1))
|
|
|
341 (goto-char from)
|
|
2
|
342 (if (looking-at fpre)
|
|
|
343 (goto-char (match-end 0)))
|
|
0
|
344 (setq from (point)))))
|
|
|
345 ;; Remove indentation from lines other than the first.
|
|
|
346 (beginning-of-line 2)
|
|
|
347 (indent-region (point) (point-max) 0)
|
|
|
348 (goto-char from)
|
|
|
349
|
|
|
350 ;; FROM, and point, are now before the text to fill,
|
|
|
351 ;; but after any fill prefix on the first line.
|
|
|
352
|
|
|
353 ;; Make sure sentences ending at end of line get an extra space.
|
|
|
354 ;; loses on split abbrevs ("Mr.\nSmith")
|
|
|
355 (while (re-search-forward "[.?!][])}\"']*$" nil t)
|
|
2
|
356 ;; XEmacs change (no insert-and-inherit)
|
|
0
|
357 (or (eobp) (insert ?\ )))
|
|
|
358 (goto-char from)
|
|
|
359 (skip-chars-forward " \t")
|
|
|
360 ;; Then change all newlines to spaces.
|
|
110
|
361 ;;; 97/3/14 jhod: Kinsoku change
|
|
|
362 ;; Spacing is not necessary for charcters of no word-separater.
|
|
|
363 ;; The regexp word-across-newline is used for this check.
|
|
|
364 (if (not (and (featurep 'mule)
|
|
|
365 (stringp word-across-newline)))
|
|
|
366 (subst-char-in-region from (point-max) ?\n ?\ )
|
|
|
367 ;;
|
|
|
368 ;; WAN +NL+WAN --> WAN + WAN
|
|
|
369 ;; not(WAN)+NL+WAN --> not(WAN) + WAN
|
|
|
370 ;; WAN +NL+not(WAN) --> WAN + not(WAN)
|
|
|
371 ;; SPC +NL+not(WAN) --> SPC + not(WAN)
|
|
|
372 ;; not(WAN)+NL+not(WAN) --> not(WAN) + SPC + not(WAN)
|
|
|
373 ;;
|
|
|
374 (goto-char from)
|
|
|
375 (end-of-line)
|
|
|
376 (while (not (eobp))
|
|
|
377 ;; Insert SPC only when point is between nonWAN. Insert
|
|
|
378 ;; before deleting to preserve marker if possible.
|
|
|
379 (if (or (prog2 ; check following char.
|
|
|
380 (forward-char) ; skip newline
|
|
|
381 (or (eobp)
|
|
|
382 (looking-at word-across-newline))
|
|
|
383 (forward-char -1))
|
|
|
384 (prog2 ; check previous char.
|
|
|
385 (forward-char -1)
|
|
|
386 (or (eq (following-char) ?\ )
|
|
|
387 (looking-at word-across-newline))
|
|
|
388 (forward-char)))
|
|
|
389 nil
|
|
|
390 (insert ?\ ))
|
|
|
391 (delete-char 1) ; delete newline
|
|
|
392 (end-of-line)))
|
|
|
393 ;; end patch
|
|
|
394 (if (and nosqueeze (not (eq justify 'full)))
|
|
0
|
395 nil
|
|
2
|
396 (canonically-space-region (or squeeze-after (point)) (point-max))
|
|
0
|
397 (goto-char (point-max))
|
|
|
398 (delete-horizontal-space)
|
|
2
|
399 ;; XEmacs change (no insert-and-inherit)
|
|
0
|
400 (insert " "))
|
|
|
401 (goto-char (point-min))
|
|
|
402
|
|
|
403 ;; This is the actual filling loop.
|
|
110
|
404 (let ((prefixcol 0) linebeg
|
|
|
405 (re-break-point (if (featurep 'mule)
|
|
|
406 (concat "[ \n\t]\\|" word-across-newline)
|
|
|
407 "[ \n\t]")))
|
|
0
|
408 (while (not (eobp))
|
|
|
409 (setq linebeg (point))
|
|
|
410 (move-to-column (1+ (current-fill-column)))
|
|
|
411 (if (eobp)
|
|
|
412 (or nosqueeze (delete-horizontal-space))
|
|
|
413 ;; Move back to start of word.
|
|
110
|
414 ;; 97/3/14 jhod: Kinsoku
|
|
|
415 ;(skip-chars-backward "^ \n" linebeg)
|
|
|
416 (fill-move-backward-to-break-point re-break-point linebeg)
|
|
|
417 ;; end patch
|
|
0
|
418 ;; Don't break after a period followed by just one space.
|
|
|
419 ;; Move back to the previous place to break.
|
|
|
420 ;; The reason is that if a period ends up at the end of a line,
|
|
|
421 ;; further fills will assume it ends a sentence.
|
|
|
422 ;; If we now know it does not end a sentence,
|
|
|
423 ;; avoid putting it at the end of the line.
|
|
|
424 (if sentence-end-double-space
|
|
|
425 (while (and (> (point) (+ linebeg 2))
|
|
|
426 (eq (preceding-char) ?\ )
|
|
|
427 (not (eq (following-char) ?\ ))
|
|
|
428 (eq (char-after (- (point) 2)) ?\.))
|
|
|
429 (forward-char -2)
|
|
110
|
430 ;; 97/3/14 jhod: Kinsoku
|
|
|
431 ;(skip-chars-backward "^ \n" linebeg)))
|
|
|
432 (fill-move-backward-to-break-point re-break-point linebeg)))
|
|
|
433 (if (featurep 'mule) (kinsoku-process))
|
|
|
434 ;end patch
|
|
|
435
|
|
0
|
436 ;; If the left margin and fill prefix by themselves
|
|
2
|
437 ;; pass the fill-column. or if they are zero
|
|
|
438 ;; but we have no room for even one word,
|
|
|
439 ;; keep at least one word anyway.
|
|
0
|
440 ;; This handles ALL BUT the first line of the paragraph.
|
|
|
441 (if (if (zerop prefixcol)
|
|
|
442 (save-excursion
|
|
|
443 (skip-chars-backward " \t" linebeg)
|
|
|
444 (bolp))
|
|
|
445 (>= prefixcol (current-column)))
|
|
|
446 ;; Ok, skip at least one word.
|
|
|
447 ;; Meanwhile, don't stop at a period followed by one space.
|
|
|
448 (let ((first t))
|
|
|
449 (move-to-column prefixcol)
|
|
|
450 (while (and (not (eobp))
|
|
|
451 (or first
|
|
|
452 (and (not (bobp))
|
|
|
453 sentence-end-double-space
|
|
|
454 (save-excursion (forward-char -1)
|
|
|
455 (and (looking-at "\\. ")
|
|
|
456 (not (looking-at "\\. ")))))))
|
|
|
457 (skip-chars-forward " \t")
|
|
110
|
458 ;; 94/3/14 jhod: Kinsoku
|
|
|
459 ;(skip-chars-forward "^ \n\t")
|
|
|
460 (fill-move-forward-to-break-point re-break-point)
|
|
|
461 ;; end patch
|
|
0
|
462 (setq first nil)))
|
|
|
463 ;; Normally, move back over the single space between the words.
|
|
126
|
464 (if (eq (preceding-char) ?\ )
|
|
|
465 (forward-char -1)))
|
|
0
|
466 ;; If the left margin and fill prefix by themselves
|
|
|
467 ;; pass the fill-column, keep at least one word.
|
|
|
468 ;; This handles the first line of the paragraph.
|
|
|
469 (if (and (zerop prefixcol)
|
|
|
470 (let ((fill-point (point)) nchars)
|
|
|
471 (save-excursion
|
|
|
472 (move-to-left-margin)
|
|
|
473 (setq nchars (- fill-point (point)))
|
|
|
474 (or (< nchars 0)
|
|
|
475 (and fill-prefix
|
|
|
476 (< nchars (length fill-prefix))
|
|
|
477 (string= (buffer-substring (point) fill-point)
|
|
|
478 (substring fill-prefix 0 nchars)))))))
|
|
|
479 ;; Ok, skip at least one word. But
|
|
|
480 ;; don't stop at a period followed by just one space.
|
|
|
481 (let ((first t))
|
|
|
482 (while (and (not (eobp))
|
|
|
483 (or first
|
|
|
484 (and (not (bobp))
|
|
|
485 sentence-end-double-space
|
|
|
486 (save-excursion (forward-char -1)
|
|
|
487 (and (looking-at "\\. ")
|
|
|
488 (not (looking-at "\\. ")))))))
|
|
|
489 (skip-chars-forward " \t")
|
|
110
|
490 ;; 97/3/14 jhod: Kinsoku
|
|
|
491 ;(skip-chars-forward "^ \t\n")
|
|
|
492 (fill-move-forward-to-break-point re-break-point)
|
|
|
493 ;; end patch
|
|
0
|
494 (setq first nil))))
|
|
2
|
495 ;; Check again to see if we got to the end of the paragraph.
|
|
|
496 (if (save-excursion (skip-chars-forward " \t") (eobp))
|
|
|
497 (or nosqueeze (delete-horizontal-space))
|
|
|
498 ;; Replace whitespace here with one newline, then indent to left
|
|
|
499 ;; margin.
|
|
|
500 (skip-chars-backward " \t")
|
|
110
|
501 ;; 97/3/14 jhod: More kinsoku stuff
|
|
|
502 (if (featurep 'mule)
|
|
|
503 ;; WAN means chars which match word-across-newline.
|
|
|
504 ;; (0) | SPC + SPC* <EOB> --> NL
|
|
|
505 ;; (1) WAN | SPC + SPC* --> WAN + SPC + NL
|
|
|
506 ;; (2) | SPC + SPC* + WAN --> SPC + NL + WAN
|
|
|
507 ;; (3) '.' | SPC + nonSPC --> '.' + SPC + NL + nonSPC
|
|
|
508 ;; (4) '.' | SPC + SPC --> '.' + NL
|
|
|
509 ;; (5) | SPC* --> NL
|
|
|
510 (let ((start (point)) ; 92.6.30 by K.Handa
|
|
|
511 (ch (following-char)))
|
|
|
512 (if (and (= ch ? )
|
|
|
513 (progn ; not case (0) -- 92.6.30 by K.Handa
|
|
|
514 (skip-chars-forward " \t")
|
|
|
515 (not (eobp)))
|
|
|
516 (or
|
|
|
517 (progn ; case (1)
|
|
|
518 (goto-char start)
|
|
|
519 (forward-char -1)
|
|
|
520 (looking-at word-across-newline))
|
|
|
521 (progn ; case (2)
|
|
|
522 (goto-char start)
|
|
|
523 (skip-chars-forward " \t")
|
|
|
524 (and (not (eobp))
|
|
|
525 (looking-at word-across-newline)
|
|
|
526 ;; never leave space after the end of sentence
|
|
|
527 (not (fill-end-of-sentence-p))))
|
|
|
528 (progn ; case (3)
|
|
|
529 (goto-char (1+ start))
|
|
|
530 (and (not (eobp))
|
|
|
531 (/= (following-char) ? )
|
|
|
532 (fill-end-of-sentence-p)))))
|
|
|
533 ;; We should keep one SPACE before NEWLINE. (1),(2),(3)
|
|
|
534 (goto-char (1+ start))
|
|
|
535 ;; We should delete all SPACES around break point. (4),(5)
|
|
|
536 (goto-char start))))
|
|
|
537 ;; end of patch
|
|
2
|
538 (insert ?\n)
|
|
|
539 ;; Give newline the properties of the space(s) it replaces
|
|
|
540 (set-text-properties (1- (point)) (point)
|
|
|
541 (text-properties-at (point)))
|
|
|
542 (indent-to-left-margin)
|
|
|
543 ;; Insert the fill prefix after indentation.
|
|
|
544 ;; Set prefixcol so whitespace in the prefix won't get lost.
|
|
|
545 (and fill-prefix (not (equal fill-prefix ""))
|
|
|
546 (progn
|
|
|
547 (insert fill-prefix)
|
|
|
548 (setq prefixcol (current-column))))))
|
|
0
|
549 ;; Justify the line just ended, if desired.
|
|
|
550 (if justify
|
|
|
551 (if (eobp)
|
|
|
552 (justify-current-line justify t t)
|
|
|
553 (forward-line -1)
|
|
|
554 (justify-current-line justify nil t)
|
|
|
555 (forward-line 1))))))
|
|
|
556 ;; Leave point after final newline.
|
|
|
557 (goto-char (point-max)))
|
|
|
558 (forward-char 1))))
|
|
|
559
|
|
|
560 (defun fill-paragraph (arg)
|
|
|
561 "Fill paragraph at or after point. Prefix arg means justify as well.
|
|
|
562 If `sentence-end-double-space' is non-nil, then period followed by one
|
|
|
563 space does not end a sentence, so don't break a line there.
|
|
|
564
|
|
|
565 If `fill-paragraph-function' is non-nil, we call it (passing our
|
|
|
566 argument to it), and if it returns non-nil, we simply return its value."
|
|
|
567 (interactive (list (if current-prefix-arg 'full)))
|
|
|
568 (or (and fill-paragraph-function
|
|
|
569 (let ((function fill-paragraph-function)
|
|
|
570 fill-paragraph-function)
|
|
|
571 (funcall function arg)))
|
|
|
572 (let ((before (point)))
|
|
|
573 (save-excursion
|
|
|
574 (forward-paragraph)
|
|
|
575 (or (bolp) (newline 1))
|
|
|
576 (let ((end (point))
|
|
|
577 (beg (progn (backward-paragraph) (point))))
|
|
|
578 (goto-char before)
|
|
|
579 (if use-hard-newlines
|
|
|
580 ;; Can't use fill-region-as-paragraph, since this paragraph may
|
|
|
581 ;; still contain hard newlines. See fill-region.
|
|
|
582 (fill-region beg end arg)
|
|
|
583 (fill-region-as-paragraph beg end arg)))))))
|
|
|
584
|
|
|
585 (defun fill-region (from to &optional justify nosqueeze to-eop)
|
|
|
586 "Fill each of the paragraphs in the region.
|
|
|
587 Prefix arg (non-nil third arg, if called from program) means justify as well.
|
|
|
588
|
|
|
589 Noninteractively, fourth arg NOSQUEEZE non-nil means to leave
|
|
|
590 whitespace other than line breaks untouched, and fifth arg TO-EOP
|
|
|
591 non-nil means to keep filling to the end of the paragraph (or next
|
|
|
592 hard newline, if `use-hard-newlines' is on).
|
|
|
593
|
|
|
594 If `sentence-end-double-space' is non-nil, then period followed by one
|
|
|
595 space does not end a sentence, so don't break a line there."
|
|
|
596 (interactive
|
|
|
597 (progn
|
|
|
598 ;; XEmacs addition:
|
|
|
599 (barf-if-buffer-read-only nil (region-beginning) (region-end))
|
|
|
600 (list (region-beginning) (region-end)
|
|
|
601 (if current-prefix-arg 'full))))
|
|
|
602 (let (end beg)
|
|
|
603 (save-restriction
|
|
|
604 (goto-char (max from to))
|
|
|
605 (if to-eop
|
|
|
606 (progn (skip-chars-backward "\n")
|
|
|
607 (forward-paragraph)))
|
|
|
608 (setq end (point))
|
|
|
609 (goto-char (setq beg (min from to)))
|
|
|
610 (beginning-of-line)
|
|
|
611 (narrow-to-region (point) end)
|
|
|
612 (while (not (eobp))
|
|
|
613 (let ((initial (point))
|
|
|
614 end)
|
|
|
615 ;; If using hard newlines, break at every one for filling
|
|
|
616 ;; purposes rather than using paragraph breaks.
|
|
|
617 (if use-hard-newlines
|
|
|
618 (progn
|
|
|
619 (while (and (setq end (text-property-any (point) (point-max)
|
|
|
620 'hard t))
|
|
|
621 (not (= ?\n (char-after end)))
|
|
|
622 (not (= end (point-max))))
|
|
|
623 (goto-char (1+ end)))
|
|
|
624 (setq end (if end (min (point-max) (1+ end)) (point-max)))
|
|
|
625 (goto-char initial))
|
|
|
626 (forward-paragraph 1)
|
|
|
627 (setq end (point))
|
|
|
628 (forward-paragraph -1))
|
|
|
629 (if (< (point) beg)
|
|
|
630 (goto-char beg))
|
|
|
631 (if (>= (point) initial)
|
|
|
632 (fill-region-as-paragraph (point) end justify nosqueeze)
|
|
|
633 (goto-char end)))))))
|
|
|
634
|
|
|
635 ;; XEmacs addition: from Tim Bradshaw <tfb@edinburgh.ac.uk>
|
|
|
636 (defun fill-paragraph-or-region (arg)
|
|
|
637 "Fill the current region, if it's active; otherwise, fill the paragraph.
|
|
|
638 See `fill-paragraph' and `fill-region' for more information."
|
|
|
639 (interactive "*P")
|
|
|
640 (if (region-active-p)
|
|
|
641 (fill-region (point) (mark) arg)
|
|
|
642 (fill-paragraph arg)))
|
|
|
643
|
|
|
644
|
|
|
645 (defconst default-justification 'left
|
|
|
646 "*Method of justifying text not otherwise specified.
|
|
|
647 Possible values are `left', `right', `full', `center', or `none'.
|
|
|
648 The requested kind of justification is done whenever lines are filled.
|
|
|
649 The `justification' text-property can locally override this variable.
|
|
|
650 This variable automatically becomes buffer-local when set in any fashion.")
|
|
|
651 (make-variable-buffer-local 'default-justification)
|
|
|
652
|
|
|
653 (defun current-justification ()
|
|
|
654 "How should we justify this line?
|
|
|
655 This returns the value of the text-property `justification',
|
|
|
656 or the variable `default-justification' if there is no text-property.
|
|
|
657 However, it returns nil rather than `none' to mean \"don't justify\"."
|
|
|
658 (let ((j (or (get-text-property
|
|
|
659 ;; Make sure we're looking at paragraph body.
|
|
|
660 (save-excursion (skip-chars-forward " \t")
|
|
|
661 (if (and (eobp) (not (bobp)))
|
|
|
662 (1- (point)) (point)))
|
|
|
663 'justification)
|
|
|
664 default-justification)))
|
|
|
665 (if (eq 'none j)
|
|
|
666 nil
|
|
|
667 j)))
|
|
|
668
|
|
|
669 (defun set-justification (begin end value &optional whole-par)
|
|
|
670 "Set the region's justification style.
|
|
|
671 The kind of justification to use is prompted for.
|
|
|
672 If the mark is not active, this command operates on the current paragraph.
|
|
|
673 If the mark is active, the region is used. However, if the beginning and end
|
|
|
674 of the region are not at paragraph breaks, they are moved to the beginning and
|
|
|
675 end of the paragraphs they are in.
|
|
|
676 If `use-hard-newlines' is true, all hard newlines are taken to be paragraph
|
|
|
677 breaks.
|
|
|
678
|
|
|
679 When calling from a program, operates just on region between BEGIN and END,
|
|
|
680 unless optional fourth arg WHOLE-PAR is non-nil. In that case bounds are
|
|
|
681 extended to include entire paragraphs as in the interactive command."
|
|
2
|
682 ;; XEmacs change (was mark-active)
|
|
0
|
683 (interactive (list (if (region-active-p) (region-beginning) (point))
|
|
|
684 (if (region-active-p) (region-end) (point))
|
|
|
685 (let ((s (completing-read
|
|
|
686 "Set justification to: "
|
|
|
687 '(("left") ("right") ("full")
|
|
|
688 ("center") ("none"))
|
|
|
689 nil t)))
|
|
|
690 (if (equal s "") (error ""))
|
|
|
691 (intern s))
|
|
|
692 t))
|
|
|
693 (save-excursion
|
|
|
694 (save-restriction
|
|
|
695 (if whole-par
|
|
|
696 (let ((paragraph-start (if use-hard-newlines "." paragraph-start))
|
|
|
697 (paragraph-ignore-fill-prefix (if use-hard-newlines t
|
|
|
698 paragraph-ignore-fill-prefix)))
|
|
|
699 (goto-char begin)
|
|
|
700 (while (and (bolp) (not (eobp))) (forward-char 1))
|
|
|
701 (backward-paragraph)
|
|
|
702 (setq begin (point))
|
|
|
703 (goto-char end)
|
|
|
704 (skip-chars-backward " \t\n" begin)
|
|
|
705 (forward-paragraph)
|
|
|
706 (setq end (point))))
|
|
|
707
|
|
|
708 (narrow-to-region (point-min) end)
|
|
|
709 (unjustify-region begin (point-max))
|
|
|
710 (put-text-property begin (point-max) 'justification value)
|
|
|
711 (fill-region begin (point-max) nil t))))
|
|
|
712
|
|
|
713 (defun set-justification-none (b e)
|
|
|
714 "Disable automatic filling for paragraphs in the region.
|
|
|
715 If the mark is not active, this applies to the current paragraph."
|
|
2
|
716 ;; XEmacs change (was mark-active)
|
|
0
|
717 (interactive (list (if (region-active-p) (region-beginning) (point))
|
|
|
718 (if (region-active-p) (region-end) (point))))
|
|
|
719 (set-justification b e 'none t))
|
|
|
720
|
|
|
721 (defun set-justification-left (b e)
|
|
|
722 "Make paragraphs in the region left-justified.
|
|
|
723 This is usually the default, but see the variable `default-justification'.
|
|
|
724 If the mark is not active, this applies to the current paragraph."
|
|
2
|
725 ;; XEmacs change (was mark-active)
|
|
0
|
726 (interactive (list (if (region-active-p) (region-beginning) (point))
|
|
|
727 (if (region-active-p) (region-end) (point))))
|
|
|
728 (set-justification b e 'left t))
|
|
|
729
|
|
|
730 (defun set-justification-right (b e)
|
|
|
731 "Make paragraphs in the region right-justified:
|
|
|
732 Flush at the right margin and ragged on the left.
|
|
|
733 If the mark is not active, this applies to the current paragraph."
|
|
2
|
734 ;; XEmacs change (was mark-active)
|
|
0
|
735 (interactive (list (if (region-active-p) (region-beginning) (point))
|
|
|
736 (if (region-active-p) (region-end) (point))))
|
|
|
737 (set-justification b e 'right t))
|
|
|
738
|
|
|
739 (defun set-justification-full (b e)
|
|
|
740 "Make paragraphs in the region fully justified:
|
|
|
741 This makes lines flush on both margins by inserting spaces between words.
|
|
|
742 If the mark is not active, this applies to the current paragraph."
|
|
2
|
743 ;; XEmacs change (was mark-active)
|
|
0
|
744 (interactive (list (if (region-active-p) (region-beginning) (point))
|
|
|
745 (if (region-active-p) (region-end) (point))))
|
|
|
746 (set-justification b e 'full t))
|
|
|
747
|
|
|
748 (defun set-justification-center (b e)
|
|
|
749 "Make paragraphs in the region centered.
|
|
|
750 If the mark is not active, this applies to the current paragraph."
|
|
2
|
751 ;; XEmacs change (was mark-active)
|
|
0
|
752 (interactive (list (if (region-active-p) (region-beginning) (point))
|
|
|
753 (if (region-active-p) (region-end) (point))))
|
|
|
754 (set-justification b e 'center t))
|
|
|
755
|
|
110
|
756 ;; 97/3/14 jhod: This functions are added for Kinsoku support
|
|
|
757 (defun find-space-insertable-point ()
|
|
|
758 "Search backward for a permissable point for inserting justification spaces"
|
|
|
759 (if (boundp 'space-insertable)
|
|
|
760 (if (re-search-backward space-insertable nil t)
|
|
|
761 (progn (forward-char 1)
|
|
|
762 t)
|
|
|
763 nil)
|
|
|
764 (search-backward " " nil t)))
|
|
|
765
|
|
0
|
766 ;; A line has up to six parts:
|
|
|
767 ;;
|
|
|
768 ;; >>> hello.
|
|
|
769 ;; [Indent-1][FP][ Indent-2 ][text][trailing whitespace][newline]
|
|
|
770 ;;
|
|
|
771 ;; "Indent-1" is the left-margin indentation; normally it ends at column
|
|
|
772 ;; given by the `current-left-margin' function.
|
|
|
773 ;; "FP" is the fill-prefix. It can be any string, including whitespace.
|
|
|
774 ;; "Indent-2" is added to justify a line if the `current-justification' is
|
|
|
775 ;; `center' or `right'. In `left' and `full' justification regions, any
|
|
|
776 ;; whitespace there is part of the line's text, and should not be changed.
|
|
|
777 ;; Trailing whitespace is not counted as part of the line length when
|
|
|
778 ;; center- or right-justifying.
|
|
|
779 ;;
|
|
|
780 ;; All parts of the line are optional, although the final newline can
|
|
|
781 ;; only be missing on the last line of the buffer.
|
|
|
782
|
|
|
783 (defun justify-current-line (&optional how eop nosqueeze)
|
|
|
784 "Do some kind of justification on this line.
|
|
|
785 Normally does full justification: adds spaces to the line to make it end at
|
|
|
786 the column given by `current-fill-column'.
|
|
|
787 Optional first argument HOW specifies alternate type of justification:
|
|
|
788 it can be `left', `right', `full', `center', or `none'.
|
|
|
789 If HOW is t, will justify however the `current-justification' function says to.
|
|
|
790 If HOW is nil or missing, full justification is done by default.
|
|
|
791 Second arg EOP non-nil means that this is the last line of the paragraph, so
|
|
|
792 it will not be stretched by full justification.
|
|
|
793 Third arg NOSQUEEZE non-nil means to leave interior whitespace unchanged,
|
|
|
794 otherwise it is made canonical."
|
|
|
795 (interactive)
|
|
|
796 (if (eq t how) (setq how (or (current-justification) 'none))
|
|
|
797 (if (null how) (setq how 'full)
|
|
|
798 (or (memq how '(none left right center))
|
|
|
799 (setq how 'full))))
|
|
|
800 (or (memq how '(none left)) ; No action required for these.
|
|
|
801 (let ((fc (current-fill-column))
|
|
|
802 (pos (point-marker))
|
|
|
803 fp-end ; point at end of fill prefix
|
|
|
804 beg ; point at beginning of line's text
|
|
|
805 end ; point at end of line's text
|
|
|
806 indent ; column of `beg'
|
|
|
807 endcol ; column of `end'
|
|
|
808 ncols) ; new indent point or offset
|
|
|
809 (end-of-line)
|
|
|
810 ;; Check if this is the last line of the paragraph.
|
|
|
811 (if (and use-hard-newlines (null eop)
|
|
|
812 (get-text-property (point) 'hard))
|
|
|
813 (setq eop t))
|
|
|
814 (skip-chars-backward " \t")
|
|
|
815 ;; Quick exit if it appears to be properly justified already
|
|
|
816 ;; or there is no text.
|
|
|
817 (if (or (bolp)
|
|
|
818 (and (memq how '(full right))
|
|
|
819 (= (current-column) fc)))
|
|
|
820 nil
|
|
|
821 (setq end (point))
|
|
|
822 (beginning-of-line)
|
|
|
823 (skip-chars-forward " \t")
|
|
|
824 ;; Skip over fill-prefix.
|
|
|
825 (if (and fill-prefix
|
|
|
826 (not (string-equal fill-prefix ""))
|
|
|
827 (equal fill-prefix
|
|
|
828 (buffer-substring
|
|
|
829 (point) (min (point-max) (+ (length fill-prefix)
|
|
|
830 (point))))))
|
|
|
831 (forward-char (length fill-prefix))
|
|
70
|
832 (if (and adaptive-fill-mode
|
|
0
|
833 (looking-at adaptive-fill-regexp))
|
|
|
834 (goto-char (match-end 0))))
|
|
|
835 (setq fp-end (point))
|
|
|
836 (skip-chars-forward " \t")
|
|
|
837 ;; This is beginning of the line's text.
|
|
|
838 (setq indent (current-column))
|
|
|
839 (setq beg (point))
|
|
|
840 (goto-char end)
|
|
|
841 (setq endcol (current-column))
|
|
|
842
|
|
|
843 ;; HOW can't be null or left--we would have exited already
|
|
|
844 (cond ((eq 'right how)
|
|
|
845 (setq ncols (- fc endcol))
|
|
|
846 (if (< ncols 0)
|
|
|
847 ;; Need to remove some indentation
|
|
|
848 (delete-region
|
|
|
849 (progn (goto-char fp-end)
|
|
|
850 (if (< (current-column) (+ indent ncols))
|
|
|
851 (move-to-column (+ indent ncols) t))
|
|
|
852 (point))
|
|
|
853 (progn (move-to-column indent) (point)))
|
|
|
854 ;; Need to add some
|
|
|
855 (goto-char beg)
|
|
|
856 (indent-to (+ indent ncols))
|
|
|
857 ;; If point was at beginning of text, keep it there.
|
|
|
858 (if (= beg pos)
|
|
|
859 (move-marker pos (point)))))
|
|
|
860
|
|
|
861 ((eq 'center how)
|
|
|
862 ;; Figure out how much indentation is needed
|
|
|
863 (setq ncols (+ (current-left-margin)
|
|
|
864 (/ (- fc (current-left-margin) ;avail. space
|
|
|
865 (- endcol indent)) ;text width
|
|
|
866 2)))
|
|
|
867 (if (< ncols indent)
|
|
|
868 ;; Have too much indentation - remove some
|
|
|
869 (delete-region
|
|
|
870 (progn (goto-char fp-end)
|
|
|
871 (if (< (current-column) ncols)
|
|
|
872 (move-to-column ncols t))
|
|
|
873 (point))
|
|
|
874 (progn (move-to-column indent) (point)))
|
|
|
875 ;; Have too little - add some
|
|
|
876 (goto-char beg)
|
|
|
877 (indent-to ncols)
|
|
|
878 ;; If point was at beginning of text, keep it there.
|
|
|
879 (if (= beg pos)
|
|
|
880 (move-marker pos (point)))))
|
|
|
881
|
|
|
882 ((eq 'full how)
|
|
|
883 ;; Insert extra spaces between words to justify line
|
|
|
884 (save-restriction
|
|
|
885 (narrow-to-region beg end)
|
|
|
886 (or nosqueeze
|
|
|
887 (canonically-space-region beg end))
|
|
|
888 (goto-char (point-max))
|
|
|
889 (setq ncols (- fc endcol))
|
|
|
890 ;; Ncols is number of additional spaces needed
|
|
|
891 (if (> ncols 0)
|
|
|
892 (if (and (not eop)
|
|
110
|
893 ;; 97/3/14 jhod: Kinsoku
|
|
|
894 (find-space-insertable-point)) ;(search-backward " " nil t))
|
|
0
|
895 (while (> ncols 0)
|
|
|
896 (let ((nmove (+ 3 (random 3))))
|
|
|
897 (while (> nmove 0)
|
|
110
|
898 (or (find-space-insertable-point) ;(search-backward " " nil t)
|
|
0
|
899 (progn
|
|
|
900 (goto-char (point-max))
|
|
110
|
901 (find-space-insertable-point))) ;(search-backward " ")))
|
|
0
|
902 (skip-chars-backward " ")
|
|
|
903 (setq nmove (1- nmove))))
|
|
2
|
904 ;; XEmacs change
|
|
0
|
905 (insert " ")
|
|
|
906 (skip-chars-backward " ")
|
|
|
907 (setq ncols (1- ncols)))))))
|
|
|
908 (t (error "Unknown justification value"))))
|
|
|
909 (goto-char pos)
|
|
|
910 (move-marker pos nil)))
|
|
|
911 nil)
|
|
|
912
|
|
|
913 (defun unjustify-current-line ()
|
|
|
914 "Remove justification whitespace from current line.
|
|
|
915 If the line is centered or right-justified, this function removes any
|
|
2
|
916 indentation past the left margin. If the line is full-justified, it removes
|
|
0
|
917 extra spaces between words. It does nothing in other justification modes."
|
|
|
918 (let ((justify (current-justification)))
|
|
|
919 (cond ((eq 'left justify) nil)
|
|
|
920 ((eq nil justify) nil)
|
|
|
921 ((eq 'full justify) ; full justify: remove extra spaces
|
|
|
922 (beginning-of-line-text)
|
|
|
923 (canonically-space-region
|
|
|
924 (point) (save-excursion (end-of-line) (point))))
|
|
|
925 ((memq justify '(center right))
|
|
|
926 (save-excursion
|
|
|
927 (move-to-left-margin nil t)
|
|
|
928 ;; Position ourselves after any fill-prefix.
|
|
|
929 (if (and fill-prefix
|
|
|
930 (not (string-equal fill-prefix ""))
|
|
|
931 (equal fill-prefix
|
|
|
932 (buffer-substring
|
|
|
933 (point) (min (point-max) (+ (length fill-prefix)
|
|
|
934 (point))))))
|
|
|
935 (forward-char (length fill-prefix)))
|
|
|
936 (delete-region (point) (progn (skip-chars-forward " \t")
|
|
|
937 (point))))))))
|
|
|
938
|
|
|
939 (defun unjustify-region (&optional begin end)
|
|
|
940 "Remove justification whitespace from region.
|
|
|
941 For centered or right-justified regions, this function removes any indentation
|
|
2
|
942 past the left margin from each line. For full-justified lines, it removes
|
|
0
|
943 extra spaces between words. It does nothing in other justification modes.
|
|
|
944 Arguments BEGIN and END are optional; default is the whole buffer."
|
|
|
945 (save-excursion
|
|
|
946 (save-restriction
|
|
|
947 (if end (narrow-to-region (point-min) end))
|
|
|
948 (goto-char (or begin (point-min)))
|
|
|
949 (while (not (eobp))
|
|
|
950 (unjustify-current-line)
|
|
|
951 (forward-line 1)))))
|
|
|
952
|
|
|
953
|
|
|
954 (defun fill-nonuniform-paragraphs (min max &optional justifyp mailp)
|
|
|
955 "Fill paragraphs within the region, allowing varying indentation within each.
|
|
|
956 This command divides the region into \"paragraphs\",
|
|
|
957 only at paragraph-separator lines, then fills each paragraph
|
|
|
958 using as the fill prefix the smallest indentation of any line
|
|
|
959 in the paragraph.
|
|
|
960
|
|
|
961 When calling from a program, pass range to fill as first two arguments.
|
|
|
962
|
|
|
963 Optional third and fourth arguments JUSTIFY and MAIL-FLAG:
|
|
|
964 JUSTIFY to justify paragraphs (prefix arg),
|
|
|
965 MAIL-FLAG for a mail message, i. e. don't fill header lines."
|
|
|
966 (interactive (list (region-beginning) (region-end)
|
|
|
967 (if current-prefix-arg 'full)))
|
|
|
968 (let ((fill-individual-varying-indent t))
|
|
|
969 (fill-individual-paragraphs min max justifyp mailp)))
|
|
|
970
|
|
|
971 (defun fill-individual-paragraphs (min max &optional justify mailp)
|
|
|
972 "Fill paragraphs of uniform indentation within the region.
|
|
|
973 This command divides the region into \"paragraphs\",
|
|
|
974 treating every change in indentation level as a paragraph boundary,
|
|
|
975 then fills each paragraph using its indentation level as the fill prefix.
|
|
|
976
|
|
|
977 When calling from a program, pass range to fill as first two arguments.
|
|
|
978
|
|
|
979 Optional third and fourth arguments JUSTIFY and MAIL-FLAG:
|
|
|
980 JUSTIFY to justify paragraphs (prefix arg),
|
|
|
981 MAIL-FLAG for a mail message, i. e. don't fill header lines."
|
|
|
982 (interactive (list (region-beginning) (region-end)
|
|
|
983 (if current-prefix-arg 'full)))
|
|
|
984 (save-restriction
|
|
|
985 (save-excursion
|
|
|
986 (goto-char min)
|
|
|
987 (beginning-of-line)
|
|
|
988 (narrow-to-region (point) max)
|
|
|
989 (if mailp
|
|
|
990 (while (and (not (eobp))
|
|
|
991 (or (looking-at "[ \t]*[^ \t\n]+:")
|
|
|
992 (looking-at "[ \t]*$")))
|
|
|
993 (if (looking-at "[ \t]*[^ \t\n]+:")
|
|
|
994 (search-forward "\n\n" nil 'move)
|
|
|
995 (forward-line 1))))
|
|
|
996 (narrow-to-region (point) max)
|
|
|
997 ;; Loop over paragraphs.
|
|
|
998 (while (progn (skip-chars-forward " \t\n") (not (eobp)))
|
|
|
999 (move-to-left-margin)
|
|
|
1000 (let ((start (point))
|
|
|
1001 fill-prefix fill-prefix-regexp)
|
|
|
1002 ;; Find end of paragraph, and compute the smallest fill-prefix
|
|
|
1003 ;; that fits all the lines in this paragraph.
|
|
|
1004 (while (progn
|
|
|
1005 ;; Update the fill-prefix on the first line
|
|
|
1006 ;; and whenever the prefix good so far is too long.
|
|
|
1007 (if (not (and fill-prefix
|
|
|
1008 (looking-at fill-prefix-regexp)))
|
|
|
1009 (setq fill-prefix
|
|
|
1010 (if (and adaptive-fill-mode adaptive-fill-regexp
|
|
|
1011 (looking-at adaptive-fill-regexp))
|
|
|
1012 (match-string 0)
|
|
|
1013 (buffer-substring
|
|
|
1014 (point)
|
|
|
1015 (save-excursion (skip-chars-forward " \t")
|
|
|
1016 (point))))
|
|
|
1017 fill-prefix-regexp (regexp-quote fill-prefix)))
|
|
|
1018 (forward-line 1)
|
|
2
|
1019 (if (bolp)
|
|
|
1020 ;; If forward-line went past a newline
|
|
|
1021 ;; move further to the left margin.
|
|
|
1022 (move-to-left-margin))
|
|
0
|
1023 ;; Now stop the loop if end of paragraph.
|
|
|
1024 (and (not (eobp))
|
|
|
1025 (if fill-individual-varying-indent
|
|
|
1026 ;; If this line is a separator line, with or
|
|
|
1027 ;; without prefix, end the paragraph.
|
|
|
1028 (and
|
|
|
1029 (not (looking-at paragraph-separate))
|
|
|
1030 (save-excursion
|
|
|
1031 (not (and (looking-at fill-prefix-regexp)
|
|
2
|
1032 ;; XEmacs change
|
|
0
|
1033 (progn
|
|
|
1034 (forward-char (length fill-prefix))
|
|
|
1035 (looking-at paragraph-separate))))))
|
|
|
1036 ;; If this line has more or less indent
|
|
|
1037 ;; than the fill prefix wants, end the paragraph.
|
|
|
1038 (and (looking-at fill-prefix-regexp)
|
|
|
1039 (save-excursion
|
|
|
1040 (not
|
|
|
1041 (progn
|
|
|
1042 (forward-char (length fill-prefix))
|
|
|
1043 (or (looking-at paragraph-separate)
|
|
|
1044 (looking-at paragraph-start))))))))))
|
|
|
1045 ;; Fill this paragraph, but don't add a newline at the end.
|
|
|
1046 (let ((had-newline (bolp)))
|
|
|
1047 (fill-region-as-paragraph start (point) justify)
|
|
|
1048 (or had-newline (delete-char -1))))))))
|
|
|
1049
|
|
|
1050 ;;; fill.el ends here
|
