Mercurial > hg > xemacs-beta
annotate lisp/paragraphs.el @ 5753:dbd8305e13cb
Warn about non-string non-integer ARG to #'gensym, bytecomp.el.
lisp/ChangeLog addition:
2013-08-21 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el:
* bytecomp.el (gensym):
* bytecomp.el (byte-compile-gensym): New.
Warn that gensym called in a for-effect context is unlikely to be
useful.
Warn about non-string non-integer ARGs, this is incorrect.
Am not changing the function to error with same, most code that
makes the mistake is has no problems, which is why it has survived
so long.
* window-xemacs.el (save-window-excursion/mapping):
* window.el (save-window-excursion):
Call #'gensym with a string, not a symbol.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Wed, 21 Aug 2013 19:02:59 +0100 |
| parents | 7613e3de80b4 |
| children |
| rev | line source |
|---|---|
| 2549 | 1 ;;; paragraphs.el --- paragraph and sentence parsing |
| 428 | 2 |
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3 ;; Copyright (C) 1985-87, 1991, 1994-97, 1999-2010 Free Software Foundation, Inc. |
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4 ;; Copyright (C) 2010 Ben Wing. |
| 428 | 5 |
| 6 ;; Maintainer: FSF | |
| 7 ;; Keywords: wp, dumped | |
| 8 | |
| 9 ;; This file is part of XEmacs. | |
| 10 | |
| 5495 | 11 ;; XEmacs is free software: you can redistribute it and/or modify |
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12 ;; it under the terms of the GNU General Public License as published by |
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13 ;; the Free Software Foundation, either version 3 of the License, or |
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14 ;; (at your option) any later version. |
| 428 | 15 |
| 16 ;; XEmacs is distributed in the hope that it will be useful, but | |
| 17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 19 ;; General Public License for more details. | |
| 20 | |
| 21 ;; You should have received a copy of the GNU General Public License | |
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22 ;; along with XEmacs. If not, see <http://www.gnu.org/licenses/>. |
| 428 | 23 |
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24 ;;; Synced up with: FSF 23.1.92. |
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25 ;;; Synced by: Ben Wing, 2-17-10. |
| 428 | 26 |
| 27 ;;; Commentary: | |
| 28 | |
| 29 ;; This file is dumped with XEmacs. | |
| 30 | |
| 31 ;; This package provides the paragraph-oriented commands documented in the | |
| 32 ;; XEmacs Reference Manual. | |
| 33 | |
| 34 ;; 06/11/1997 - Use char-(after|before) instead of | |
| 35 ;; (following|preceding)-char. -slb | |
| 36 | |
| 37 ;;; Code: | |
| 38 | |
| 2549 | 39 (defgroup paragraphs nil |
| 40 "Paragraph and sentence parsing." | |
| 41 :group 'editing) | |
| 428 | 42 |
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43 (put 'use-hard-newlines 'permanent-local t) |
| 2549 | 44 (define-minor-mode use-hard-newlines |
| 428 | 45 "Minor mode to distinguish hard and soft newlines. |
| 46 When active, the functions `newline' and `open-line' add the | |
| 47 text-property `hard' to newlines that they insert, and a line is | |
| 48 only considered as a candidate to match `paragraph-start' or | |
| 49 `paragraph-separate' if it follows a hard newline. | |
| 50 | |
| 51 Prefix argument says to turn mode on if positive, off if negative. | |
| 52 When the mode is turned on, if there are newlines in the buffer but no hard | |
| 2549 | 53 newlines, ask the user whether to mark as hard any newlines preceeding a |
| 428 | 54 `paragraph-start' line. From a program, second arg INSERT specifies whether |
| 55 to do this; it can be `never' to change nothing, t or `always' to force | |
| 2549 | 56 marking, `guess' to try to do the right thing with no questions, nil |
| 428 | 57 or anything else to ask the user. |
| 58 | |
| 59 Newlines not marked hard are called \"soft\", and are always internal | |
| 60 to paragraphs. The fill functions insert and delete only soft newlines." | |
| 2549 | 61 :group 'paragraphs |
| 62 :extra-args (insert) | |
| 63 (when use-hard-newlines | |
| 428 | 64 ;; Turn mode on |
| 65 ;; Intuit hard newlines -- | |
| 66 ;; mark as hard any newlines preceding a paragraph-start line. | |
| 67 (if (or (eq insert t) (eq insert 'always) | |
| 68 (and (not (eq 'never insert)) | |
| 69 (not (text-property-any (point-min) (point-max) 'hard t)) | |
| 70 (save-excursion | |
| 71 (goto-char (point-min)) | |
| 72 (search-forward "\n" nil t)) | |
| 73 (or (eq insert 'guess) | |
| 74 (y-or-n-p "Make newlines between paragraphs hard? ")))) | |
| 75 (save-excursion | |
| 76 (goto-char (point-min)) | |
| 77 (while (search-forward "\n" nil t) | |
| 78 (let ((pos (point))) | |
| 79 (move-to-left-margin) | |
| 2549 | 80 (when (looking-at paragraph-start) |
| 81 (set-hard-newline-properties (1- pos) pos)) | |
| 82 ;; If paragraph-separate, newline after it is hard too. | |
| 83 (when (looking-at paragraph-separate) | |
| 84 (set-hard-newline-properties (1- pos) pos) | |
| 85 (end-of-line) | |
| 86 (unless (eobp) | |
| 87 (set-hard-newline-properties (point) (1+ (point))))))))))) | |
| 428 | 88 |
| 2549 | 89 (defcustom paragraph-start "\f\\|[ \t]*$" "\ |
| 428 | 90 *Regexp for beginning of a line that starts OR separates paragraphs. |
| 91 This regexp should match lines that separate paragraphs | |
| 92 and should also match lines that start a paragraph | |
| 93 \(and are part of that paragraph). | |
| 94 | |
| 95 This is matched against the text at the left margin, which is not necessarily | |
| 96 the beginning of the line, so it should never use \"^\" as an anchor. This | |
| 97 ensures that the paragraph functions will work equally well within a region | |
| 98 of text indented by a margin setting. | |
| 99 | |
| 100 The variable `paragraph-separate' specifies how to distinguish | |
| 101 lines that start paragraphs from lines that separate them. | |
| 102 | |
| 103 If the variable `use-hard-newlines' is non-nil, then only lines following a | |
| 2549 | 104 hard newline are considered to match." |
| 105 :group 'paragraphs | |
| 106 :type 'regexp) | |
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107 (put 'paragraph-start 'safe-local-variable 'stringp) |
| 428 | 108 |
| 109 ;; paragraph-start requires a hard newline, but paragraph-separate does not: | |
| 110 ;; It is assumed that paragraph-separate is distinctive enough to be believed | |
| 111 ;; whenever it occurs, while it is reasonable to set paragraph-start to | |
| 112 ;; something very minimal, even including "." (which makes every hard newline | |
| 113 ;; start a new paragraph). | |
| 114 | |
| 2549 | 115 (defcustom paragraph-separate "[ \t\f]*$" |
| 116 "*Regexp for beginning of a line that separates paragraphs. | |
| 450 | 117 If you change this, you may have to change `paragraph-start' also. |
| 118 | |
| 119 A line matching this is not part of any paragraph. | |
| 428 | 120 |
| 121 This is matched against the text at the left margin, which is not necessarily | |
| 122 the beginning of the line, so it should not use \"^\" as an anchor. This | |
| 123 ensures that the paragraph functions will work equally within a region of | |
| 2549 | 124 text indented by a margin setting." |
| 125 :group 'paragraphs | |
| 126 :type 'regexp) | |
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127 (put 'paragraph-separate 'safe-local-variable 'stringp) |
| 2549 | 128 |
| 129 (defcustom sentence-end-double-space t | |
| 130 "*Non-nil means a single space does not end a sentence. | |
| 131 This is relevant for filling. See also `sentence-end-without-period' | |
| 132 and `colon-double-space'. | |
| 133 | |
| 134 This variable applies only to filling, not motion commands. To | |
| 135 change the behavior of motion commands, see `sentence-end'. | |
| 136 | |
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137 This value is used by the function `sentence-end' to construct the |
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138 regexp describing the end of a sentence, when the value of the variable |
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139 `sentence-end' is nil. See Info node `(lispref)Standard Regexps'." |
| 2549 | 140 :type 'boolean |
| 141 :group 'fill) | |
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142 (put 'sentence-end-double-space 'safe-local-variable 'booleanp) |
| 428 | 143 |
| 2549 | 144 (defcustom sentence-end-without-period nil |
| 145 "*Non-nil means a sentence will end without a period. | |
| 146 For example, a sentence in Thai text ends with double space but | |
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147 without a period. |
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148 |
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149 This value is used by the function `sentence-end' to construct the |
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150 regexp describing the end of a sentence, when the value of the variable |
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151 `sentence-end' is nil. See Info node `(lispref)Standard Regexps'." |
| 2549 | 152 :type 'boolean |
| 153 :group 'fill) | |
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154 (put 'sentence-end-without-period 'safe-local-variable 'booleanp) |
| 2549 | 155 |
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156 (defcustom sentence-end-without-space |
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157 (cond ((featurep 'unicode-internal) |
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158 (decode-coding-string "\343\200\202\357\274\216\357\274\237\357\274\201" 'utf-8)) |
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159 ((featurep 'mule) |
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160 (decode-coding-string "\033$B!#!%!)!*\033$A!##.#?#!\033$(0!$!%!)!*\033$(G!$!%!)!*\033(B" 'iso-2022-7bit)) |
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161 (t "")) |
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162 "String of characters that end sentence without following spaces. |
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163 |
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164 This value is used by the function `sentence-end' to construct the |
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165 regexp describing the end of a sentence, when the value of the variable |
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166 `sentence-end' is nil. See Info node `(lispref)Standard Regexps'." |
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167 :group 'paragraphs |
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168 :type 'string) |
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169 (put 'sentence-end-without-space 'safe-local-variable 'stringp) |
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170 |
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171 (defcustom sentence-end nil |
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172 "Regexp describing the end of a sentence. |
| 2549 | 173 The value includes the whitespace following the sentence. |
| 428 | 174 All paragraph boundaries also end sentences, regardless. |
| 175 | |
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176 The value nil means to use the default value defined by the |
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177 function `sentence-end'. You should always use this function |
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178 to obtain the value of this variable." |
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179 :group 'paragraphs |
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180 :type '(choice regexp (const :tag "Use default value" nil))) |
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181 (put 'sentence-end 'safe-local-variable 'string-or-null-p) |
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182 |
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183 (defcustom sentence-end-base |
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184 (concat "[.?!][]\"'" |
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185 (if (featurep 'mule) (string (unicode-to-char #x201D)) "") |
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186 ")}]*") |
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187 "Regexp matching the basic end of a sentence, not including following space." |
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188 :group 'paragraphs |
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189 :type 'string |
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190 :version "22.1") |
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191 (put 'sentence-end-base 'safe-local-variable 'stringp) |
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192 |
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193 (defun sentence-end () |
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194 "Return the regexp describing the end of a sentence. |
| 2549 | 195 |
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196 This function returns either the value of the variable `sentence-end' |
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197 if it is non-nil, or the default value constructed from the |
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198 variables `sentence-end-base', `sentence-end-double-space', |
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199 `sentence-end-without-period' and `sentence-end-without-space'. |
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200 |
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201 The default value specifies that in order to be recognized as the |
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202 end of a sentence, the ending period, question mark, or exclamation point |
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203 must be followed by two spaces, with perhaps some closing delimiters |
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204 in between. See Info node `(elisp)Standard Regexps'." |
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205 (or sentence-end |
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206 ;; We accept non-break space along with space. |
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207 (concat (if sentence-end-without-period "\\w[ \240][ \240]\\|") |
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208 "\\(" |
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209 sentence-end-base |
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210 (if sentence-end-double-space |
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211 "\\($\\|[ \240]$\\|\t\\|[ \240][ \240]\\)" "\\($\\|[\t \240]\\)") |
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212 "\\|[" sentence-end-without-space "]+" |
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213 "\\)" |
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214 "[ \240\t\n]*"))) |
| 428 | 215 |
| 2549 | 216 (defcustom page-delimiter "^\014" |
| 217 "*Regexp describing line-beginnings that separate pages." | |
| 218 :group 'paragraphs | |
| 219 :type 'regexp) | |
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220 (put 'page-delimiter 'safe-local-variable 'stringp) |
| 428 | 221 |
| 2549 | 222 (defcustom paragraph-ignore-fill-prefix nil |
| 223 "*Non-nil means the paragraph commands are not affected by `fill-prefix'. | |
| 224 This is desirable in modes where blank lines are the paragraph delimiters." | |
| 225 :group 'paragraphs | |
| 226 :type 'boolean) | |
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227 (put 'paragraph-ignore-fill-prefix 'safe-local-variable 'booleanp) |
| 428 | 228 |
| 229 (defun forward-paragraph (&optional arg) | |
| 230 "Move forward to end of paragraph. | |
| 2549 | 231 With argument ARG, do it ARG times; |
| 232 a negative argument ARG = -N means move backward N paragraphs. | |
| 428 | 233 |
| 234 A line which `paragraph-start' matches either separates paragraphs | |
| 235 \(if `paragraph-separate' matches it also) or is the first line of a paragraph. | |
| 236 A paragraph end is the beginning of a line which is not part of the paragraph | |
| 2549 | 237 to which the end of the previous line belongs, or the end of the buffer. |
| 238 Returns the count of paragraphs left to move." | |
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239 ;; #### MERGE! FSF Has (interactive "^p") |
| 428 | 240 (interactive "_p") ; XEmacs |
| 241 (or arg (setq arg 1)) | |
| 2549 | 242 (let* ((opoint (point)) |
| 243 (fill-prefix-regexp | |
| 428 | 244 (and fill-prefix (not (equal fill-prefix "")) |
| 245 (not paragraph-ignore-fill-prefix) | |
| 246 (regexp-quote fill-prefix))) | |
| 247 ;; Remove ^ from paragraph-start and paragraph-sep if they are there. | |
| 248 ;; These regexps shouldn't be anchored, because we look for them | |
| 249 ;; starting at the left-margin. This allows paragraph commands to | |
| 250 ;; work normally with indented text. | |
| 251 ;; This hack will not find problem cases like "whatever\\|^something". | |
| 2549 | 252 (parstart (if (and (not (equal "" paragraph-start)) |
| 253 (equal ?^ (aref paragraph-start 0))) | |
| 254 (substring paragraph-start 1) | |
| 255 paragraph-start)) | |
| 256 (parsep (if (and (not (equal "" paragraph-separate)) | |
| 257 (equal ?^ (aref paragraph-separate 0))) | |
| 258 (substring paragraph-separate 1) | |
| 259 paragraph-separate)) | |
| 260 (parsep | |
| 428 | 261 (if fill-prefix-regexp |
| 2549 | 262 (concat parsep "\\|" |
| 428 | 263 fill-prefix-regexp "[ \t]*$") |
| 2549 | 264 parsep)) |
| 428 | 265 ;; This is used for searching. |
| 2549 | 266 (sp-parstart (concat "^[ \t]*\\(?:" parstart "\\|" parsep "\\)")) |
| 267 start found-start) | |
| 428 | 268 (while (and (< arg 0) (not (bobp))) |
| 2549 | 269 (if (and (not (looking-at parsep)) |
| 428 | 270 (re-search-backward "^\n" (max (1- (point)) (point-min)) t) |
| 2549 | 271 (looking-at parsep)) |
| 272 (setq arg (1+ arg)) | |
| 428 | 273 (setq start (point)) |
| 274 ;; Move back over paragraph-separating lines. | |
| 446 | 275 (backward-char 1) (beginning-of-line) |
| 428 | 276 (while (and (not (bobp)) |
| 277 (progn (move-to-left-margin) | |
| 2549 | 278 (looking-at parsep))) |
| 279 (forward-line -1)) | |
| 428 | 280 (if (bobp) |
| 281 nil | |
| 2549 | 282 (setq arg (1+ arg)) |
| 428 | 283 ;; Go to end of the previous (non-separating) line. |
| 284 (end-of-line) | |
| 285 ;; Search back for line that starts or separates paragraphs. | |
| 286 (if (if fill-prefix-regexp | |
| 2549 | 287 ;; There is a fill prefix; it overrides parstart. |
| 4103 | 288 (let nil ; (multiple-lines) |
| 428 | 289 (while (and (progn (beginning-of-line) (not (bobp))) |
| 290 (progn (move-to-left-margin) | |
| 2549 | 291 (not (looking-at parsep))) |
| 428 | 292 (looking-at fill-prefix-regexp)) |
| 4103 | 293 ; (unless (= (point) start) |
| 294 ; (setq multiple-lines t)) | |
| 428 | 295 (forward-line -1)) |
| 296 (move-to-left-margin) | |
| 2549 | 297 ;; This deleted code caused a long hanging-indent line |
| 298 ;; not to be filled together with the following lines. | |
| 299 ;; ;; Don't move back over a line before the paragraph | |
| 300 ;; ;; which doesn't start with fill-prefix | |
| 301 ;; ;; unless that is the only line we've moved over. | |
| 302 ;; (and (not (looking-at fill-prefix-regexp)) | |
| 303 ;; multiple-lines | |
| 304 ;; (forward-line 1)) | |
| 428 | 305 (not (bobp))) |
| 2549 | 306 (while (and (re-search-backward sp-parstart nil 1) |
| 307 (setq found-start t) | |
| 428 | 308 ;; Found a candidate, but need to check if it is a |
| 2549 | 309 ;; REAL parstart. |
| 428 | 310 (progn (setq start (point)) |
| 311 (move-to-left-margin) | |
| 2549 | 312 (not (looking-at parsep))) |
| 313 (not (and (looking-at parstart) | |
| 314 (or (not use-hard-newlines) | |
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315 ;; #### XEmacs: We've reversed |
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316 ;; the order of the following two -- |
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317 ;; does it matter? |
| 2549 | 318 (get-text-property (1- start) 'hard) |
| 319 (bobp))))) | |
| 320 (setq found-start nil) | |
| 428 | 321 (goto-char start)) |
| 2549 | 322 found-start) |
| 428 | 323 ;; Found one. |
| 324 (progn | |
| 325 ;; Move forward over paragraph separators. | |
| 326 ;; We know this cannot reach the place we started | |
| 327 ;; because we know we moved back over a non-separator. | |
| 328 (while (and (not (eobp)) | |
| 329 (progn (move-to-left-margin) | |
| 2549 | 330 (looking-at parsep))) |
| 428 | 331 (forward-line 1)) |
| 332 ;; If line before paragraph is just margin, back up to there. | |
| 333 (end-of-line 0) | |
| 334 (if (> (current-column) (current-left-margin)) | |
| 335 (forward-char 1) | |
| 336 (skip-chars-backward " \t") | |
| 337 (if (not (bolp)) | |
| 338 (forward-line 1)))) | |
| 339 ;; No starter or separator line => use buffer beg. | |
| 2549 | 340 (goto-char (point-min)))))) |
| 341 | |
| 428 | 342 (while (and (> arg 0) (not (eobp))) |
| 2549 | 343 ;; Move forward over separator lines... |
| 344 (while (and (not (eobp)) | |
| 345 (progn (move-to-left-margin) (not (eobp))) | |
| 346 (looking-at parsep)) | |
| 347 (forward-line 1)) | |
| 348 (unless (eobp) (setq arg (1- arg))) | |
| 349 ;; ... and one more line. | |
| 350 (forward-line 1) | |
| 428 | 351 (if fill-prefix-regexp |
| 2549 | 352 ;; There is a fill prefix; it overrides parstart. |
| 428 | 353 (while (and (not (eobp)) |
| 354 (progn (move-to-left-margin) (not (eobp))) | |
| 2549 | 355 (not (looking-at parsep)) |
| 428 | 356 (looking-at fill-prefix-regexp)) |
| 357 (forward-line 1)) | |
| 2549 | 358 (while (and (re-search-forward sp-parstart nil 1) |
| 428 | 359 (progn (setq start (match-beginning 0)) |
| 360 (goto-char start) | |
| 361 (not (eobp))) | |
| 362 (progn (move-to-left-margin) | |
| 2549 | 363 (not (looking-at parsep))) |
| 364 (or (not (looking-at parstart)) | |
| 428 | 365 (and use-hard-newlines |
| 366 (not (get-text-property (1- start) 'hard))))) | |
| 367 (forward-char 1)) | |
| 368 (if (< (point) (point-max)) | |
| 2549 | 369 (goto-char start)))) |
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370 (if-fboundp 'constrain-to-field |
| 4103 | 371 (constrain-to-field nil opoint t) |
| 372 (error | |
| 373 'void-function | |
| 374 "constrain-to-field not available; is xemacs-base installed?")) | |
| 2549 | 375 ;; Return the number of steps that could not be done. |
| 376 arg)) | |
| 428 | 377 |
| 378 (defun backward-paragraph (&optional arg) | |
| 379 "Move backward to start of paragraph. | |
| 2549 | 380 With argument ARG, do it ARG times; |
| 381 a negative argument ARG = -N means move forward N paragraphs. | |
| 428 | 382 |
| 383 A paragraph start is the beginning of a line which is a | |
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384 `paragraph-start' or which is ordinary text and follows a |
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385 `paragraph-separate'ing line; except: if the first real line of a |
| 428 | 386 paragraph is preceded by a blank line, the paragraph starts at that |
| 387 blank line. | |
| 388 | |
| 389 See `forward-paragraph' for more information." | |
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390 ;; #### MERGE! FSF Has (interactive "^p") |
| 428 | 391 (interactive "_p") ; XEmacs |
| 392 (or arg (setq arg 1)) | |
| 393 (forward-paragraph (- arg))) | |
| 394 | |
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395 (defun mark-paragraph (&optional arg allow-extend) |
| 428 | 396 "Put point at beginning of this paragraph, mark at end. |
| 687 | 397 The paragraph marked is the one that contains point or follows point. |
| 2549 | 398 |
| 399 With argument ARG, puts mark at end of a following paragraph, so that | |
| 400 the number of paragraphs marked equals ARG. | |
| 401 | |
| 402 If ARG is negative, point is put at end of this paragraph, mark is put | |
| 403 at beginning of this or a previous paragraph. | |
| 404 | |
| 405 If this command is repeated, it marks the next ARG paragraphs after (or | |
| 406 before, if arg is negative) the ones already marked." | |
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407 (interactive "p\np") |
| 687 | 408 (unless arg (setq arg 1)) |
| 409 (when (zerop arg) | |
| 410 (error "Cannot mark zero paragraphs")) | |
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411 (cond ((and allow-extend |
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412 (eq last-command this-command) (mark t)) |
| 2549 | 413 (set-mark |
| 414 (save-excursion | |
| 415 (goto-char (mark)) | |
| 416 (forward-paragraph arg) | |
| 417 (point)))) | |
| 418 (t | |
| 419 (forward-paragraph arg) | |
| 420 (push-mark nil t t) | |
| 421 (backward-paragraph arg)))) | |
| 428 | 422 |
| 423 (defun kill-paragraph (arg) | |
| 424 "Kill forward to end of paragraph. | |
| 425 With arg N, kill forward to Nth end of paragraph; | |
| 426 negative arg -N means kill backward to Nth start of paragraph." | |
| 427 (interactive "*p") ; XEmacs | |
| 428 (kill-region (point) (progn (forward-paragraph arg) (point)))) | |
| 429 | |
| 430 (defun backward-kill-paragraph (arg) | |
| 431 "Kill back to start of paragraph. | |
| 432 With arg N, kill back to Nth start of paragraph; | |
| 433 negative arg -N means kill forward to Nth end of paragraph." | |
| 434 (interactive "*p") ; XEmacs | |
| 435 (kill-region (point) (progn (backward-paragraph arg) (point)))) | |
| 436 | |
| 437 (defun transpose-paragraphs (arg) | |
| 438 "Interchange this (or next) paragraph with previous one." | |
| 439 (interactive "*p") | |
| 440 (transpose-subr 'forward-paragraph arg)) | |
| 441 | |
| 442 (defun start-of-paragraph-text () | |
| 443 (let ((opoint (point)) npoint) | |
| 444 (forward-paragraph -1) | |
| 445 (setq npoint (point)) | |
| 446 (skip-chars-forward " \t\n") | |
| 447 ;; If the range of blank lines found spans the original start point, | |
| 448 ;; try again from the beginning of it. | |
| 449 ;; Must be careful to avoid infinite loop | |
| 450 ;; when following a single return at start of buffer. | |
| 451 (if (and (>= (point) opoint) (< npoint opoint)) | |
| 452 (progn | |
| 453 (goto-char npoint) | |
| 454 (if (> npoint (point-min)) | |
| 455 (start-of-paragraph-text)))))) | |
| 456 | |
| 457 (defun end-of-paragraph-text () | |
| 458 (let ((opoint (point))) | |
| 459 (forward-paragraph 1) | |
| 446 | 460 (if (eq (char-before (point)) ?\n) (backward-char 1)) |
| 428 | 461 (if (<= (point) opoint) |
| 462 (progn | |
| 463 (forward-char 1) | |
| 464 (if (< (point) (point-max)) | |
| 465 (end-of-paragraph-text)))))) | |
| 466 | |
| 467 (defun forward-sentence (&optional arg) | |
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468 "Move forward to next end of sentence. With argument, repeat. |
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469 With negative argument, move backward repeatedly to start of sentence. |
| 428 | 470 |
| 471 The variable `sentence-end' is a regular expression that matches ends of | |
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472 sentences. Also, every paragraph boundary terminates sentences as well." |
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473 ;; #### MERGE! FSF Has (interactive "^p") |
| 428 | 474 (interactive "_p") ; XEmacs |
| 475 (or arg (setq arg 1)) | |
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476 (let ((opoint (point)) |
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477 (sentence-end (sentence-end))) |
| 2549 | 478 (while (< arg 0) |
| 479 (let ((pos (point)) | |
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480 ;; We used to use (start-of-paragraph-text), but this can |
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481 ;; prevent sentence-end from matching if it is anchored at |
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482 ;; BOL and the paragraph starts indented. |
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483 (par-beg (save-excursion (backward-paragraph) (point)))) |
| 2549 | 484 (if (and (re-search-backward sentence-end par-beg t) |
| 485 (or (< (match-end 0) pos) | |
| 486 (re-search-backward sentence-end par-beg t))) | |
| 487 (goto-char (match-end 0)) | |
| 488 (goto-char par-beg))) | |
| 489 (setq arg (1+ arg))) | |
| 490 (while (> arg 0) | |
| 491 (let ((par-end (save-excursion (end-of-paragraph-text) (point)))) | |
| 492 (if (re-search-forward sentence-end par-end t) | |
| 493 (skip-chars-backward " \t\n") | |
| 494 (goto-char par-end))) | |
| 495 (setq arg (1- arg))) | |
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496 (if-fboundp 'constrain-to-field |
| 4103 | 497 (constrain-to-field nil opoint t) |
| 498 (error | |
| 499 'void-function | |
| 500 "constrain-to-field not available; is xemacs-base installed?")))) | |
| 428 | 501 |
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502 (defun repunctuate-sentences () |
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503 "Put two spaces at the end of sentences from point to the end of buffer. |
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504 It works using `query-replace-regexp'." |
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505 (interactive) |
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506 (query-replace-regexp "\\([]\"')]?\\)\\([.?!]\\)\\([]\"')]?\\) +" |
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507 "\\1\\2\\3 ")) |
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508 |
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509 |
| 428 | 510 (defun backward-sentence (&optional arg) |
| 511 "Move backward to start of sentence. With arg, do it arg times. | |
| 512 See `forward-sentence' for more information." | |
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513 ;; #### MERGE! FSF Has (interactive "^p") |
| 428 | 514 (interactive "_p") ; XEmacs |
| 515 (or arg (setq arg 1)) | |
| 516 (forward-sentence (- arg))) | |
| 517 | |
| 518 (defun kill-sentence (&optional arg) | |
| 519 "Kill from point to end of sentence. | |
| 520 With arg, repeat; negative arg -N means kill back to Nth start of sentence." | |
| 521 (interactive "*p") ; XEmacs | |
| 522 (kill-region (point) (progn (forward-sentence arg) (point)))) | |
| 523 | |
| 524 (defun backward-kill-sentence (&optional arg) | |
| 525 "Kill back from point to start of sentence. | |
| 526 With arg, repeat, or kill forward to Nth end of sentence if negative arg -N." | |
| 527 (interactive "*p") ; XEmacs | |
| 528 (kill-region (point) (progn (backward-sentence arg) (point)))) | |
| 529 | |
| 530 (defun mark-end-of-sentence (arg) | |
| 2549 | 531 "Put mark at end of sentence. Arg works as in `forward-sentence'. |
| 532 If this command is repeated, it marks the next ARG sentences after the | |
| 533 ones already marked." | |
| 428 | 534 (interactive "p") |
| 535 ;; FSF Version: | |
| 2549 | 536 ; (push-mark |
| 537 ; (save-excursion | |
| 538 ; (if (and (eq last-command this-command) (mark t)) | |
| 539 ; (goto-char (mark))) | |
| 540 ; (forward-sentence arg) | |
| 541 ; (point)) | |
| 542 ; nil t)) | |
| 428 | 543 (mark-something 'mark-end-of-sentence 'forward-sentence arg)) |
| 544 | |
| 545 (defun mark-end-of-line (arg) | |
| 546 "Put mark at end of line. Arg works as in `end-of-line'." | |
| 547 (interactive "p") | |
| 548 (mark-something 'mark-end-of-line 'end-of-line arg)) | |
| 549 | |
| 550 (defun transpose-sentences (arg) | |
| 551 "Interchange this (next) and previous sentence." | |
| 552 (interactive "*p") | |
| 553 (transpose-subr 'forward-sentence arg)) | |
| 554 | |
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555 ;; Local Variables: |
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556 ;; coding: utf-8 |
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557 ;; End: |
| 2549 | 558 |
| 428 | 559 ;;; paragraphs.el ends here |