Mercurial > hg > xemacs-beta
annotate lisp/simple.el @ 5773:94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
lisp/ChangeLog addition:
2013-12-17 Aidan Kehoe <kehoea@parhasard.net>
* simple.el (blink-matching-open):
When showing the opening parenthesis in the minibiffer, use the
isearch face for it, in case there are multiple parentheses in the
text shown.
When writing moderately involved macros, it's often not enough
just to show the backquote context before the parenthesis
(e.g. @,.`). Skip over that when searching for useful context in
the same way we skip over space and tab.
* simple.el (message):
* simple.el (lmessage):
If there are no ARGS, don't call #'format. This allows extent
information to be passed through to the minibuffer.
It's probably better still to update #'format to preserve extent
info.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Tue, 17 Dec 2013 20:49:52 +0200 |
| parents | 0eb4e96fd261 |
| children | b79e1e02bf01 |
| rev | line source |
|---|---|
| 428 | 1 ;;; simple.el --- basic editing commands for XEmacs |
| 2 | |
| 3 ;; Copyright (C) 1985-7, 1993-5, 1997 Free Software Foundation, Inc. | |
| 4 ;; Copyright (C) 1995 Tinker Systems and INS Engineering Corp. | |
| 1261 | 5 ;; Copyright (C) 2000, 2001, 2002, 2003 Ben Wing. |
| 428 | 6 |
| 7 ;; Maintainer: XEmacs Development Team | |
| 8 ;; Keywords: lisp, extensions, internal, dumped | |
| 9 | |
| 10 ;; This file is part of XEmacs. | |
| 11 | |
|
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12 ;; XEmacs is free software: you can redistribute it and/or modify it |
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13 ;; under the terms of the GNU General Public License as published by the |
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14 ;; Free Software Foundation, either version 3 of the License, or (at your |
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15 ;; option) any later version. |
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16 |
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17 ;; XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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18 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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19 ;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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20 ;; for more details. |
| 428 | 21 |
| 22 ;; You should have received a copy of the GNU General Public License | |
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23 ;; along with XEmacs. If not, see <http://www.gnu.org/licenses/>. |
| 428 | 24 |
| 25 ;;; Synched up with: FSF 19.34 [But not very closely]. | |
| 3000 | 26 ;;; Occasional synching to FSF 21.2 and FSF 22.0, as marked. Comment stuff |
| 27 ;;; also synched, and in newcomment.el. | |
| 428 | 28 |
| 29 ;;; Commentary: | |
| 30 | |
| 31 ;; This file is dumped with XEmacs. | |
| 32 | |
| 33 ;; A grab-bag of basic XEmacs commands not specifically related to some | |
| 34 ;; major mode or to file-handling. | |
| 35 | |
| 36 ;; Changes for zmacs-style active-regions: | |
| 37 ;; | |
| 38 ;; beginning-of-buffer, end-of-buffer, count-lines-region, | |
| 39 ;; count-lines-buffer, what-line, what-cursor-position, set-goal-column, | |
| 40 ;; set-fill-column, prefix-arg-internal, and line-move (which is used by | |
| 41 ;; next-line and previous-line) set zmacs-region-stays to t, so that they | |
| 42 ;; don't affect the current region-hilighting state. | |
| 43 ;; | |
| 44 ;; mark-whole-buffer, mark-word, exchange-point-and-mark, and | |
| 45 ;; set-mark-command (without an argument) call zmacs-activate-region. | |
| 46 ;; | |
| 47 ;; mark takes an optional arg like the new Fmark_marker() does. When | |
| 48 ;; the region is not active, mark returns nil unless the optional arg is true. | |
| 49 ;; | |
| 50 ;; push-mark, pop-mark, exchange-point-and-mark, and set-marker, and | |
| 51 ;; set-mark-command use (mark t) so that they can access the mark whether | |
| 52 ;; the region is active or not. | |
| 53 ;; | |
| 54 ;; shell-command, shell-command-on-region, yank, and yank-pop (which all | |
| 55 ;; push a mark) have been altered to call exchange-point-and-mark with an | |
| 56 ;; argument, meaning "don't activate the region". These commands only use | |
| 57 ;; exchange-point-and-mark to position the newly-pushed mark correctly, so | |
| 58 ;; this isn't a user-visible change. These functions have also been altered | |
| 59 ;; to use (mark t) for the same reason. | |
| 60 | |
| 502 | 61 ;; 97/3/14 Jareth Hein (jhod@po.iijnet.or.jp) added kinsoku processing |
| 62 ;; (support for filling of Asian text) into the fill code. This was | |
| 63 ;; ripped bleeding from Mule-2.3, and could probably use some feature | |
| 64 ;; additions (like additional wrap styles, etc) | |
| 428 | 65 |
| 66 ;; 97/06/11 Steve Baur (steve@xemacs.org) Convert use of | |
| 67 ;; (preceding|following)-char to char-(after|before). | |
| 68 | |
| 69 ;;; Code: | |
| 70 | |
| 71 (defgroup editing-basics nil | |
| 72 "Most basic editing variables." | |
| 73 :group 'editing) | |
| 74 | |
| 75 (defgroup killing nil | |
| 76 "Killing and yanking commands." | |
| 77 :group 'editing) | |
| 78 | |
| 79 (defgroup fill-comments nil | |
| 80 "Indenting and filling of comments." | |
| 81 :prefix "comment-" | |
| 82 :group 'fill) | |
| 83 | |
| 84 (defgroup paren-matching nil | |
| 85 "Highlight (un)matching of parens and expressions." | |
| 86 :prefix "paren-" | |
| 87 :group 'matching) | |
| 88 | |
| 89 (defgroup log-message nil | |
| 90 "Messages logging and display customizations." | |
| 91 :group 'minibuffer) | |
| 92 | |
| 93 (defgroup warnings nil | |
| 94 "Warnings customizations." | |
| 95 :group 'minibuffer) | |
| 96 | |
| 97 | |
| 98 (defcustom search-caps-disable-folding t | |
| 99 "*If non-nil, upper case chars disable case fold searching. | |
| 100 This does not apply to \"yanked\" strings." | |
| 101 :type 'boolean | |
| 102 :group 'editing-basics) | |
| 103 | |
| 104 ;; This is stolen (and slightly modified) from FSF emacs's | |
| 105 ;; `isearch-no-upper-case-p'. | |
| 106 (defun no-upper-case-p (string &optional regexp-flag) | |
| 107 "Return t if there are no upper case chars in STRING. | |
| 108 If REGEXP-FLAG is non-nil, disregard letters preceded by `\\' (but not `\\\\') | |
| 109 since they have special meaning in a regexp." | |
| 110 (let ((case-fold-search nil)) | |
| 444 | 111 (not (string-match (if regexp-flag |
| 428 | 112 "\\(^\\|\\\\\\\\\\|[^\\]\\)[A-Z]" |
| 113 "[A-Z]") | |
| 114 string)) | |
| 115 )) | |
| 116 | |
| 117 (defmacro with-search-caps-disable-folding (string regexp-flag &rest body) "\ | |
| 444 | 118 Eval BODY with `case-fold-search' let to nil if `search-caps-disable-folding' |
| 428 | 119 is non-nil, and if STRING (either a string or a regular expression according |
| 120 to REGEXP-FLAG) contains uppercase letters." | |
| 121 `(let ((case-fold-search | |
| 122 (if (and case-fold-search search-caps-disable-folding) | |
| 123 (no-upper-case-p ,string ,regexp-flag) | |
| 124 case-fold-search))) | |
| 125 ,@body)) | |
| 126 (put 'with-search-caps-disable-folding 'lisp-indent-function 2) | |
| 444 | 127 (put 'with-search-caps-disable-folding 'edebug-form-spec |
| 428 | 128 '(sexp sexp &rest form)) |
| 129 | |
| 444 | 130 (defmacro with-interactive-search-caps-disable-folding (string regexp-flag |
| 428 | 131 &rest body) |
| 132 "Same as `with-search-caps-disable-folding', but only in the case of a | |
| 133 function called interactively." | |
| 134 `(let ((case-fold-search | |
| 444 | 135 (if (and (interactive-p) |
| 428 | 136 case-fold-search search-caps-disable-folding) |
| 137 (no-upper-case-p ,string ,regexp-flag) | |
| 138 case-fold-search))) | |
| 139 ,@body)) | |
| 140 (put 'with-interactive-search-caps-disable-folding 'lisp-indent-function 2) | |
| 444 | 141 (put 'with-interactive-search-caps-disable-folding 'edebug-form-spec |
| 428 | 142 '(sexp sexp &rest form)) |
| 143 | |
| 444 | 144 (defun newline (&optional n) |
| 428 | 145 "Insert a newline, and move to left margin of the new line if it's blank. |
| 146 The newline is marked with the text-property `hard'. | |
| 444 | 147 With optional arg N, insert that many newlines. |
| 428 | 148 In Auto Fill mode, if no numeric arg, break the preceding line if it's long." |
| 149 (interactive "*P") | |
| 150 (barf-if-buffer-read-only nil (point)) | |
| 151 ;; Inserting a newline at the end of a line produces better redisplay in | |
| 152 ;; try_window_id than inserting at the beginning of a line, and the textual | |
| 153 ;; result is the same. So, if we're at beginning of line, pretend to be at | |
| 154 ;; the end of the previous line. | |
| 155 ;; #### Does this have any relevance in XEmacs? | |
| 156 (let ((flag (and (not (bobp)) | |
| 157 (bolp) | |
| 158 ;; Make sure the newline before point isn't intangible. | |
| 159 (not (get-char-property (1- (point)) 'intangible)) | |
| 160 ;; Make sure the newline before point isn't read-only. | |
| 161 (not (get-char-property (1- (point)) 'read-only)) | |
| 162 ;; Make sure the newline before point isn't invisible. | |
| 163 (not (get-char-property (1- (point)) 'invisible)) | |
| 164 ;; This should probably also test for the previous char | |
| 165 ;; being the *last* character too. | |
| 166 (not (get-char-property (1- (point)) 'end-open)) | |
| 167 ;; Make sure the newline before point has the same | |
| 168 ;; properties as the char before it (if any). | |
| 169 (< (or (previous-extent-change (point)) -2) | |
| 170 (- (point) 2)))) | |
| 171 (was-page-start (and (bolp) | |
| 172 (looking-at page-delimiter))) | |
| 173 (beforepos (point))) | |
| 174 (if flag (backward-char 1)) | |
| 175 ;; Call self-insert so that auto-fill, abbrev expansion etc. happens. | |
| 176 ;; Set last-command-char to tell self-insert what to insert. | |
| 177 (let ((last-command-char ?\n) | |
| 178 ;; Don't auto-fill if we have a numeric argument. | |
| 179 ;; Also not if flag is true (it would fill wrong line); | |
| 180 ;; there is no need to since we're at BOL. | |
| 444 | 181 (auto-fill-function (if (or n flag) nil auto-fill-function))) |
| 428 | 182 (unwind-protect |
| 444 | 183 (self-insert-command (prefix-numeric-value n)) |
| 428 | 184 ;; If we get an error in self-insert-command, put point at right place. |
| 185 (if flag (forward-char 1)))) | |
| 186 ;; If we did *not* get an error, cancel that forward-char. | |
| 187 (if flag (backward-char 1)) | |
| 188 ;; Mark the newline(s) `hard'. | |
| 189 (if use-hard-newlines | |
| 444 | 190 (let* ((from (- (point) (if n (prefix-numeric-value n) 1))) |
| 428 | 191 (sticky (get-text-property from 'end-open))) ; XEmacs |
| 192 (put-text-property from (point) 'hard 't) | |
| 193 ;; If end-open is not "t", add 'hard to end-open list | |
| 194 (if (and (listp sticky) (not (memq 'hard sticky))) | |
| 195 (put-text-property from (point) 'end-open ; XEmacs | |
| 196 (cons 'hard sticky))))) | |
| 197 ;; If the newline leaves the previous line blank, | |
| 198 ;; and we have a left margin, delete that from the blank line. | |
| 199 (or flag | |
| 200 (save-excursion | |
| 201 (goto-char beforepos) | |
| 202 (beginning-of-line) | |
| 203 (and (looking-at "[ \t]$") | |
| 204 (> (current-left-margin) 0) | |
| 205 (delete-region (point) (progn (end-of-line) (point)))))) | |
| 206 (if flag (forward-char 1)) | |
| 207 ;; Indent the line after the newline, except in one case: | |
| 208 ;; when we added the newline at the beginning of a line | |
| 209 ;; which starts a page. | |
| 210 (or was-page-start | |
| 211 (move-to-left-margin nil t))) | |
| 212 nil) | |
| 213 | |
| 214 (defun set-hard-newline-properties (from to) | |
| 215 (let ((sticky (get-text-property from 'rear-nonsticky))) | |
| 216 (put-text-property from to 'hard 't) | |
| 217 ;; If rear-nonsticky is not "t", add 'hard to rear-nonsticky list | |
| 218 (if (and (listp sticky) (not (memq 'hard sticky))) | |
| 219 (put-text-property from (point) 'rear-nonsticky | |
| 220 (cons 'hard sticky))))) | |
| 221 | |
| 444 | 222 (defun open-line (n) |
| 428 | 223 "Insert a newline and leave point before it. |
| 224 If there is a fill prefix and/or a left-margin, insert them on the new line | |
| 225 if the line would have been blank. | |
| 226 With arg N, insert N newlines." | |
| 227 (interactive "*p") | |
| 228 (let* ((do-fill-prefix (and fill-prefix (bolp))) | |
| 229 (do-left-margin (and (bolp) (> (current-left-margin) 0))) | |
| 230 (loc (point))) | |
| 444 | 231 (newline n) |
| 428 | 232 (goto-char loc) |
| 444 | 233 (while (> n 0) |
| 428 | 234 (cond ((bolp) |
| 235 (if do-left-margin (indent-to (current-left-margin))) | |
| 236 (if do-fill-prefix (insert fill-prefix)))) | |
| 237 (forward-line 1) | |
| 444 | 238 (setq n (1- n))) |
| 428 | 239 (goto-char loc) |
| 240 (end-of-line))) | |
| 241 | |
| 242 (defun split-line () | |
| 243 "Split current line, moving portion beyond point vertically down." | |
| 244 (interactive "*") | |
| 245 (skip-chars-forward " \t") | |
| 246 (let ((col (current-column)) | |
| 247 (pos (point))) | |
| 248 (newline 1) | |
| 249 (indent-to col 0) | |
| 250 (goto-char pos))) | |
| 251 | |
| 252 (defun quoted-insert (arg) | |
| 253 "Read next input character and insert it. | |
| 254 This is useful for inserting control characters. | |
| 255 You may also type up to 3 octal digits, to insert a character with that code. | |
| 256 | |
| 257 In overwrite mode, this function inserts the character anyway, and | |
| 258 does not handle octal digits specially. This means that if you use | |
| 259 overwrite as your normal editing mode, you can use this function to | |
| 260 insert characters when necessary. | |
| 261 | |
| 262 In binary overwrite mode, this function does overwrite, and octal | |
| 263 digits are interpreted as a character code. This is supposed to make | |
| 264 this function useful in editing binary files." | |
| 265 (interactive "*p") | |
| 266 (let ((char (if (or (not overwrite-mode) | |
| 267 (eq overwrite-mode 'overwrite-mode-binary)) | |
| 268 (read-quoted-char) | |
| 269 ;; read-char obeys C-g, so we should protect. FSF | |
| 270 ;; doesn't have the protection here, but it's a bug in | |
| 271 ;; FSF. | |
| 272 (let ((inhibit-quit t)) | |
| 273 (read-char))))) | |
| 274 (if (> arg 0) | |
| 275 (if (eq overwrite-mode 'overwrite-mode-binary) | |
| 276 (delete-char arg))) | |
| 277 (while (> arg 0) | |
| 278 (insert char) | |
| 279 (setq arg (1- arg))))) | |
| 280 | |
| 281 (defun delete-indentation (&optional arg) | |
| 282 "Join this line to previous and fix up whitespace at join. | |
| 283 If there is a fill prefix, delete it from the beginning of this line. | |
| 284 With argument, join this line to following line." | |
| 285 (interactive "*P") | |
| 286 (beginning-of-line) | |
| 287 (if arg (forward-line 1)) | |
| 288 (if (eq (char-before (point)) ?\n) | |
| 289 (progn | |
| 290 (delete-region (point) (1- (point))) | |
| 291 ;; If the second line started with the fill prefix, | |
| 292 ;; delete the prefix. | |
| 293 (if (and fill-prefix | |
| 294 (<= (+ (point) (length fill-prefix)) (point-max)) | |
| 295 (string= fill-prefix | |
| 296 (buffer-substring (point) | |
| 297 (+ (point) (length fill-prefix))))) | |
| 298 (delete-region (point) (+ (point) (length fill-prefix)))) | |
| 299 (fixup-whitespace)))) | |
| 300 | |
| 958 | 301 (defalias 'join-line 'delete-indentation) |
| 302 | |
| 428 | 303 (defun fixup-whitespace () |
| 304 "Fixup white space between objects around point. | |
| 305 Leave one space or none, according to the context." | |
| 306 (interactive "*") | |
| 307 (save-excursion | |
| 308 (delete-horizontal-space) | |
| 309 (if (or (looking-at "^\\|\\s)") | |
| 446 | 310 (save-excursion (backward-char 1) |
| 428 | 311 (looking-at "$\\|\\s(\\|\\s'"))) |
| 312 nil | |
| 313 (insert ?\ )))) | |
| 314 | |
| 315 (defun delete-horizontal-space () | |
| 316 "Delete all spaces and tabs around point." | |
| 317 (interactive "*") | |
| 318 (skip-chars-backward " \t") | |
| 319 (delete-region (point) (progn (skip-chars-forward " \t") (point)))) | |
| 320 | |
| 321 (defun just-one-space () | |
| 322 "Delete all spaces and tabs around point, leaving one space." | |
| 323 (interactive "*") | |
| 324 (if abbrev-mode ; XEmacs | |
| 325 (expand-abbrev)) | |
| 326 (skip-chars-backward " \t") | |
| 327 (if (eq (char-after (point)) ? ) ; XEmacs | |
| 328 (forward-char 1) | |
| 329 (insert ? )) | |
| 330 (delete-region (point) (progn (skip-chars-forward " \t") (point)))) | |
| 331 | |
| 332 (defun delete-blank-lines () | |
| 333 "On blank line, delete all surrounding blank lines, leaving just one. | |
| 334 On isolated blank line, delete that one. | |
| 335 On nonblank line, delete any immediately following blank lines." | |
| 336 (interactive "*") | |
| 337 (let (thisblank singleblank) | |
| 338 (save-excursion | |
| 339 (beginning-of-line) | |
| 340 (setq thisblank (looking-at "[ \t]*$")) | |
| 341 ;; Set singleblank if there is just one blank line here. | |
| 342 (setq singleblank | |
| 343 (and thisblank | |
| 344 (not (looking-at "[ \t]*\n[ \t]*$")) | |
| 345 (or (bobp) | |
| 346 (progn (forward-line -1) | |
| 347 (not (looking-at "[ \t]*$"))))))) | |
| 348 ;; Delete preceding blank lines, and this one too if it's the only one. | |
| 349 (if thisblank | |
| 350 (progn | |
| 351 (beginning-of-line) | |
| 352 (if singleblank (forward-line 1)) | |
| 353 (delete-region (point) | |
| 354 (if (re-search-backward "[^ \t\n]" nil t) | |
| 355 (progn (forward-line 1) (point)) | |
| 356 (point-min))))) | |
| 357 ;; Delete following blank lines, unless the current line is blank | |
| 358 ;; and there are no following blank lines. | |
| 359 (if (not (and thisblank singleblank)) | |
| 360 (save-excursion | |
| 361 (end-of-line) | |
| 362 (forward-line 1) | |
| 363 (delete-region (point) | |
| 364 (if (re-search-forward "[^ \t\n]" nil t) | |
| 365 (progn (beginning-of-line) (point)) | |
| 366 (point-max))))) | |
| 367 ;; Handle the special case where point is followed by newline and eob. | |
| 368 ;; Delete the line, leaving point at eob. | |
| 369 (if (looking-at "^[ \t]*\n\\'") | |
| 370 (delete-region (point) (point-max))))) | |
| 371 | |
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372 (defcustom delete-trailing-lines t |
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Import GNU's #'delete-trailing-whitespace, thank you GNU.
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373 "If non-nil, \\[delete-trailing-whitespace] deletes trailing lines. |
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Import GNU's #'delete-trailing-whitespace, thank you GNU.
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374 Trailing lines are deleted only if `delete-trailing-whitespace' |
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Import GNU's #'delete-trailing-whitespace, thank you GNU.
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375 is called on the entire buffer (rather than an active region)." |
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98f762d06c5f
Import GNU's #'delete-trailing-whitespace, thank you GNU.
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parents:
5655
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376 :type 'boolean |
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Import GNU's #'delete-trailing-whitespace, thank you GNU.
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parents:
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377 :group 'editing) |
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Import GNU's #'delete-trailing-whitespace, thank you GNU.
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378 ; :version "24.2") |
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98f762d06c5f
Import GNU's #'delete-trailing-whitespace, thank you GNU.
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parents:
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379 |
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98f762d06c5f
Import GNU's #'delete-trailing-whitespace, thank you GNU.
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380 (defun delete-trailing-whitespace (&optional start end) |
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Import GNU's #'delete-trailing-whitespace, thank you GNU.
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parents:
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381 "Delete trailing whitespace between START and END. |
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98f762d06c5f
Import GNU's #'delete-trailing-whitespace, thank you GNU.
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parents:
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382 If called interactively, START and END are the start/end of the |
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Import GNU's #'delete-trailing-whitespace, thank you GNU.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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383 region if the mark is active, or of the buffer's accessible |
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Import GNU's #'delete-trailing-whitespace, thank you GNU.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5655
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384 portion if the mark is inactive. |
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385 |
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386 This command deletes whitespace characters after the last |
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387 non-whitespace character in each line between START and END. It |
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388 does not consider formfeed characters to be whitespace. |
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389 |
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390 If this command acts on the entire buffer (i.e. if called |
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391 interactively with the mark inactive, or called from Lisp with |
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392 END nil), it also deletes all trailing lines at the end of the |
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393 buffer if the variable `delete-trailing-lines' is non-nil." |
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5684
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394 (interactive (progn |
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395 (barf-if-buffer-read-only) |
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396 (if (if zmacs-regions |
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397 zmacs-region-active-p |
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398 (eq (marker-buffer (mark-marker t)) (current-buffer))) |
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399 (list (region-beginning) (region-end)) |
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400 (list nil nil)))) |
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401 (save-match-data |
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402 (save-excursion |
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403 (let ((end-marker (copy-marker (or end (point-max)))) |
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404 (start (or start (point-min)))) |
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405 (goto-char start) |
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406 (while (re-search-forward "\\s-$" end-marker t) |
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407 (skip-syntax-backward "-" (line-beginning-position)) |
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408 ;; Don't delete formfeeds, even if they are considered whitespace. |
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409 ;; XEmacs; #'looking-at-p not (yet) available |
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410 (if (save-match-data (looking-at ".*\f")) |
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411 (goto-char (match-end 0))) |
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412 (delete-region (point) (match-end 0))) |
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413 ;; Delete trailing empty lines. |
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414 (goto-char end-marker) |
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415 (when (and (not end) |
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416 delete-trailing-lines |
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417 ;; Really the end of buffer. |
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418 (save-restriction (widen) (eobp)) |
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419 (<= (skip-chars-backward "\n") -2)) |
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420 (delete-region (1+ (point)) end-marker)) |
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421 (set-marker end-marker nil)))) |
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422 ;; Return nil for the benefit of `write-file-functions'. |
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423 nil) |
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424 |
| 428 | 425 (defun back-to-indentation () |
| 426 "Move point to the first non-whitespace character on this line." | |
| 427 ;; XEmacs change | |
| 428 (interactive "_") | |
| 429 (beginning-of-line 1) | |
| 430 (skip-chars-forward " \t")) | |
| 431 | |
| 432 (defun newline-and-indent () | |
| 433 "Insert a newline, then indent according to major mode. | |
| 434 Indentation is done using the value of `indent-line-function'. | |
| 435 In programming language modes, this is the same as TAB. | |
| 436 In some text modes, where TAB inserts a tab, this command indents to the | |
| 437 column specified by the function `current-left-margin'." | |
| 438 (interactive "*") | |
| 439 (delete-region (point) (progn (skip-chars-backward " \t") (point))) | |
| 440 (newline) | |
| 441 (indent-according-to-mode)) | |
| 442 | |
| 443 (defun reindent-then-newline-and-indent () | |
| 444 "Reindent current line, insert newline, then indent the new line. | |
| 445 Indentation of both lines is done according to the current major mode, | |
| 446 which means calling the current value of `indent-line-function'. | |
| 447 In programming language modes, this is the same as TAB. | |
| 448 In some text modes, where TAB inserts a tab, this indents to the | |
| 449 column specified by the function `current-left-margin'." | |
| 450 (interactive "*") | |
| 451 (save-excursion | |
| 452 (delete-region (point) (progn (skip-chars-backward " \t") (point))) | |
| 453 (indent-according-to-mode)) | |
| 454 (newline) | |
| 455 (indent-according-to-mode)) | |
| 456 | |
| 457 ;; Internal subroutine of delete-char | |
| 458 (defun kill-forward-chars (arg) | |
| 459 (if (listp arg) (setq arg (car arg))) | |
| 460 (if (eq arg '-) (setq arg -1)) | |
| 461 (kill-region (point) (+ (point) arg))) | |
| 462 | |
| 463 (defun backward-delete-char-untabify (arg &optional killp) | |
| 464 "Delete characters backward, changing tabs into spaces. | |
| 465 Delete ARG chars, and kill (save in kill ring) if KILLP is non-nil. | |
| 466 Interactively, ARG is the prefix arg (default 1) | |
| 467 and KILLP is t if a prefix arg was specified." | |
| 468 (interactive "*p\nP") | |
| 469 (let ((count arg)) | |
| 470 (save-excursion | |
| 471 (while (and (> count 0) (not (bobp))) | |
| 472 (if (eq (char-before (point)) ?\t) ; XEmacs | |
| 473 (let ((col (current-column))) | |
| 446 | 474 (backward-char 1) |
| 428 | 475 (setq col (- col (current-column))) |
| 476 (insert-char ?\ col) | |
| 477 (delete-char 1))) | |
| 446 | 478 (backward-char 1) |
| 428 | 479 (setq count (1- count))))) |
| 480 (delete-backward-char arg killp) | |
| 481 ;; XEmacs: In overwrite mode, back over columns while clearing them out, | |
| 482 ;; unless at end of line. | |
| 483 (and overwrite-mode (not (eolp)) | |
| 484 (save-excursion (insert-char ?\ arg)))) | |
| 485 | |
| 486 (defcustom delete-key-deletes-forward t | |
| 487 "*If non-nil, the DEL key will erase one character forwards. | |
| 488 If nil, the DEL key will erase one character backwards." | |
| 489 :type 'boolean | |
| 490 :group 'editing-basics) | |
| 491 | |
| 446 | 492 (defcustom backward-delete-function 'delete-backward-char |
| 428 | 493 "*Function called to delete backwards on a delete keypress. |
| 494 If `delete-key-deletes-forward' is nil, `backward-or-forward-delete-char' | |
| 495 calls this function to erase one character backwards. Default value | |
| 446 | 496 is `delete-backward-char', with `backward-delete-char-untabify' being a |
| 428 | 497 popular alternate setting." |
| 498 :type 'function | |
| 499 :group 'editing-basics) | |
| 500 | |
| 501 ;; Trash me, baby. | |
| 502 (defsubst delete-forward-p () | |
| 503 (and delete-key-deletes-forward | |
| 504 (or (not (eq (device-type) 'x)) | |
| 502 | 505 (declare-fboundp |
| 506 (x-keysym-on-keyboard-sans-modifiers-p 'backspace))))) | |
| 428 | 507 |
| 508 (defun backward-or-forward-delete-char (arg) | |
| 509 "Delete either one character backwards or one character forwards. | |
| 510 Controlled by the state of `delete-key-deletes-forward' and whether the | |
| 511 BackSpace keysym even exists on your keyboard. If you don't have a | |
| 512 BackSpace keysym, the delete key should always delete one character | |
| 513 backwards." | |
| 514 (interactive "*p") | |
| 515 (if (delete-forward-p) | |
| 516 (delete-char arg) | |
| 517 (funcall backward-delete-function arg))) | |
| 518 | |
| 519 (defun backward-or-forward-kill-word (arg) | |
| 520 "Delete either one word backwards or one word forwards. | |
| 521 Controlled by the state of `delete-key-deletes-forward' and whether the | |
| 522 BackSpace keysym even exists on your keyboard. If you don't have a | |
| 523 BackSpace keysym, the delete key should always delete one character | |
| 524 backwards." | |
| 525 (interactive "*p") | |
| 526 (if (delete-forward-p) | |
| 527 (kill-word arg) | |
| 528 (backward-kill-word arg))) | |
| 529 | |
| 530 (defun backward-or-forward-kill-sentence (arg) | |
| 531 "Delete either one sentence backwards or one sentence forwards. | |
| 532 Controlled by the state of `delete-key-deletes-forward' and whether the | |
| 533 BackSpace keysym even exists on your keyboard. If you don't have a | |
| 534 BackSpace keysym, the delete key should always delete one character | |
| 535 backwards." | |
| 536 (interactive "*P") | |
| 537 (if (delete-forward-p) | |
| 538 (kill-sentence arg) | |
| 539 (backward-kill-sentence (prefix-numeric-value arg)))) | |
| 540 | |
| 541 (defun backward-or-forward-kill-sexp (arg) | |
| 542 "Delete either one sexpr backwards or one sexpr forwards. | |
| 543 Controlled by the state of `delete-key-deletes-forward' and whether the | |
| 544 BackSpace keysym even exists on your keyboard. If you don't have a | |
| 545 BackSpace keysym, the delete key should always delete one character | |
| 546 backwards." | |
| 547 (interactive "*p") | |
| 548 (if (delete-forward-p) | |
| 549 (kill-sexp arg) | |
| 550 (backward-kill-sexp arg))) | |
| 551 | |
| 552 (defun zap-to-char (arg char) | |
| 553 "Kill up to and including ARG'th occurrence of CHAR. | |
| 554 Goes backward if ARG is negative; error if CHAR not found." | |
| 555 (interactive "*p\ncZap to char: ") | |
| 556 (kill-region (point) (with-interactive-search-caps-disable-folding | |
| 557 (char-to-string char) nil | |
| 558 (search-forward (char-to-string char) nil nil arg) | |
| 559 (point)))) | |
| 560 | |
| 561 (defun zap-up-to-char (arg char) | |
| 562 "Kill up to ARG'th occurrence of CHAR. | |
| 563 Goes backward if ARG is negative; error if CHAR not found." | |
| 564 (interactive "*p\ncZap up to char: ") | |
| 565 (kill-region (point) (with-interactive-search-caps-disable-folding | |
| 566 (char-to-string char) nil | |
| 567 (search-forward (char-to-string char) nil nil arg) | |
| 568 (goto-char (if (> arg 0) (1- (point)) (1+ (point)))) | |
| 569 (point)))) | |
| 570 | |
| 571 (defun beginning-of-buffer (&optional arg) | |
| 572 "Move point to the beginning of the buffer; leave mark at previous position. | |
| 573 With arg N, put point N/10 of the way from the beginning. | |
| 574 | |
| 575 If the buffer is narrowed, this command uses the beginning and size | |
| 576 of the accessible part of the buffer. | |
| 577 | |
| 462 | 578 The characters that are moved over may be added to the current selection |
| 579 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 580 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 581 the documentation for this variable for more details. | |
| 582 | |
| 428 | 583 Don't use this command in Lisp programs! |
| 584 \(goto-char (point-min)) is faster and avoids clobbering the mark." | |
| 585 ;; XEmacs change | |
| 586 (interactive "_P") | |
| 587 (push-mark) | |
| 588 (let ((size (- (point-max) (point-min)))) | |
| 589 (goto-char (if arg | |
| 590 (+ (point-min) | |
| 591 (if (> size 10000) | |
| 592 ;; Avoid overflow for large buffer sizes! | |
| 593 (* (prefix-numeric-value arg) | |
| 594 (/ size 10)) | |
| 595 (/ (+ 10 (* size (prefix-numeric-value arg))) 10))) | |
| 596 (point-min)))) | |
| 597 (if arg (forward-line 1))) | |
| 598 | |
| 599 (defun end-of-buffer (&optional arg) | |
| 600 "Move point to the end of the buffer; leave mark at previous position. | |
| 601 With arg N, put point N/10 of the way from the end. | |
| 602 | |
| 603 If the buffer is narrowed, this command uses the beginning and size | |
| 604 of the accessible part of the buffer. | |
| 605 | |
| 462 | 606 The characters that are moved over may be added to the current selection |
| 607 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 608 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 609 the documentation for this variable for more details. | |
| 610 | |
| 428 | 611 Don't use this command in Lisp programs! |
| 612 \(goto-char (point-max)) is faster and avoids clobbering the mark." | |
| 613 ;; XEmacs change | |
| 614 (interactive "_P") | |
| 615 (push-mark) | |
| 616 ;; XEmacs changes here. | |
| 617 (let ((scroll-to-end (not (pos-visible-in-window-p (point-max)))) | |
| 618 (size (- (point-max) (point-min)))) | |
| 619 (goto-char (if arg | |
| 620 (- (point-max) | |
| 621 (if (> size 10000) | |
| 622 ;; Avoid overflow for large buffer sizes! | |
| 623 (* (prefix-numeric-value arg) | |
| 624 (/ size 10)) | |
| 625 (/ (* size (prefix-numeric-value arg)) 10))) | |
| 626 (point-max))) | |
| 627 (cond (arg | |
| 628 ;; If we went to a place in the middle of the buffer, | |
| 629 ;; adjust it to the beginning of a line. | |
| 630 (forward-line 1)) | |
| 631 ;; XEmacs change | |
| 632 (scroll-to-end | |
| 633 ;; If the end of the buffer is not already on the screen, | |
| 634 ;; then scroll specially to put it near, but not at, the bottom. | |
| 635 (recenter -3))))) | |
| 636 | |
| 637 ;; XEmacs (not in FSF) | |
| 638 (defun mark-beginning-of-buffer (&optional arg) | |
| 639 "Push a mark at the beginning of the buffer; leave point where it is. | |
| 640 With arg N, push mark N/10 of the way from the true beginning." | |
| 641 (interactive "P") | |
| 642 (push-mark (if arg | |
| 643 (if (> (buffer-size) 10000) | |
| 644 ;; Avoid overflow for large buffer sizes! | |
| 645 (* (prefix-numeric-value arg) | |
| 646 (/ (buffer-size) 10)) | |
| 647 (/ (+ 10 (* (buffer-size) (prefix-numeric-value arg))) 10)) | |
| 648 (point-min)) | |
| 649 nil | |
| 650 t)) | |
| 651 (define-function 'mark-bob 'mark-beginning-of-buffer) | |
| 652 | |
| 653 ;; XEmacs (not in FSF) | |
| 654 (defun mark-end-of-buffer (&optional arg) | |
| 655 "Push a mark at the end of the buffer; leave point where it is. | |
| 656 With arg N, push mark N/10 of the way from the true end." | |
| 657 (interactive "P") | |
| 658 (push-mark (if arg | |
| 659 (- (1+ (buffer-size)) | |
| 660 (if (> (buffer-size) 10000) | |
| 661 ;; Avoid overflow for large buffer sizes! | |
| 662 (* (prefix-numeric-value arg) | |
| 663 (/ (buffer-size) 10)) | |
| 664 (/ (* (buffer-size) (prefix-numeric-value arg)) 10))) | |
| 665 (point-max)) | |
| 666 nil | |
| 667 t)) | |
| 668 (define-function 'mark-eob 'mark-end-of-buffer) | |
| 669 | |
| 670 (defun mark-whole-buffer () | |
| 671 "Put point at beginning and mark at end of buffer. | |
| 672 You probably should not use this function in Lisp programs; | |
| 673 it is usually a mistake for a Lisp function to use any subroutine | |
| 674 that uses or sets the mark." | |
| 675 (interactive) | |
| 676 (push-mark (point)) | |
| 677 (push-mark (point-max) nil t) | |
| 678 (goto-char (point-min))) | |
| 679 | |
| 680 ;; XEmacs | |
| 681 (defun eval-current-buffer (&optional printflag) | |
| 682 "Evaluate the current buffer as Lisp code. | |
| 683 Programs can pass argument PRINTFLAG which controls printing of output: | |
| 684 nil means discard it; anything else is stream for print." | |
| 685 (interactive) | |
| 686 (eval-buffer (current-buffer) printflag)) | |
| 687 | |
| 688 ;; XEmacs | |
| 689 (defun count-words-buffer (&optional buffer) | |
| 690 "Print the number of words in BUFFER. | |
| 691 If called noninteractively, the value is returned rather than printed. | |
| 692 BUFFER defaults to the current buffer." | |
| 693 (interactive) | |
| 694 (let ((words (count-words-region (point-min) (point-max) buffer))) | |
| 695 (when (interactive-p) | |
| 696 (message "Buffer has %d words" words)) | |
| 697 words)) | |
| 698 | |
| 699 ;; XEmacs | |
| 700 (defun count-words-region (start end &optional buffer) | |
| 701 "Print the number of words in region between START and END in BUFFER. | |
| 702 If called noninteractively, the value is returned rather than printed. | |
| 703 BUFFER defaults to the current buffer." | |
| 704 (interactive "_r") | |
| 705 (save-excursion | |
| 706 (set-buffer (or buffer (current-buffer))) | |
| 707 (let ((words 0)) | |
| 708 (goto-char start) | |
| 709 (while (< (point) end) | |
| 710 (when (forward-word 1) | |
| 711 (incf words))) | |
| 712 (when (interactive-p) | |
| 713 (message "Region has %d words" words)) | |
| 714 words))) | |
| 715 | |
| 716 (defun count-lines-region (start end) | |
| 717 "Print number of lines and characters in the region." | |
| 718 ;; XEmacs change | |
| 719 (interactive "_r") | |
| 720 (message "Region has %d lines, %d characters" | |
| 721 (count-lines start end) (- end start))) | |
| 722 | |
| 723 ;; XEmacs | |
| 724 (defun count-lines-buffer (&optional buffer) | |
| 725 "Print number of lines and characters in BUFFER." | |
| 726 (interactive) | |
| 727 (with-current-buffer (or buffer (current-buffer)) | |
| 728 (let ((cnt (count-lines (point-min) (point-max)))) | |
| 729 (message "Buffer has %d lines, %d characters" | |
| 730 cnt (- (point-max) (point-min))) | |
| 731 cnt))) | |
| 732 | |
| 733 ;;; Modified by Bob Weiner, 8/24/95, to print narrowed line number also. | |
| 734 ;;; Expanded by Bob Weiner, BeOpen, on 02/12/1997 | |
| 735 (defun what-line () | |
| 736 "Print the following variants of the line number of point: | |
| 737 Region line - displayed line within the active region | |
| 738 Collapsed line - includes only selectively displayed lines; | |
| 739 Buffer line - physical line in the buffer; | |
| 740 Narrowed line - line number from the start of the buffer narrowing." | |
| 741 ;; XEmacs change | |
| 742 (interactive "_") | |
| 743 (let ((opoint (point)) start) | |
| 744 (save-excursion | |
| 745 (save-restriction | |
| 746 (if (region-active-p) | |
| 747 (goto-char (region-beginning)) | |
| 748 (goto-char (point-min))) | |
| 749 (widen) | |
| 750 (beginning-of-line) | |
| 751 (setq start (point)) | |
| 752 (goto-char opoint) | |
| 753 (beginning-of-line) | |
| 754 (let* ((buffer-line (1+ (count-lines 1 (point)))) | |
| 755 (narrowed-p (or (/= start 1) | |
| 756 (/= (point-max) (1+ (buffer-size))))) | |
| 757 (narrowed-line (if narrowed-p (1+ (count-lines start (point))))) | |
| 758 (selective-line (if selective-display | |
| 759 (1+ (count-lines start (point) t)))) | |
| 760 (region-line (if (region-active-p) | |
| 761 (1+ (count-lines start (point) selective-display))))) | |
| 762 (cond (region-line | |
| 763 (message "Region line %d; Buffer line %d" | |
| 764 region-line buffer-line)) | |
| 765 ((and narrowed-p selective-line (/= selective-line narrowed-line)) | |
| 766 ;; buffer narrowed and some lines selectively displayed | |
| 767 (message "Collapsed line %d; Buffer line %d; Narrowed line %d" | |
| 768 selective-line buffer-line narrowed-line)) | |
| 769 (narrowed-p | |
| 770 ;; buffer narrowed | |
| 771 (message "Buffer line %d; Narrowed line %d" | |
| 772 buffer-line narrowed-line)) | |
| 773 ((and selective-line (/= selective-line buffer-line)) | |
| 774 ;; some lines selectively displayed | |
| 775 (message "Collapsed line %d; Buffer line %d" | |
| 776 selective-line buffer-line)) | |
| 777 (t | |
| 778 ;; give a basic line count | |
| 779 (message "Line %d" buffer-line))))))) | |
| 780 (setq zmacs-region-stays t)) | |
| 781 | |
| 442 | 782 ;; new in XEmacs 21.2 (not in FSF). |
| 783 (defun line-number (&optional pos respect-narrowing) | |
| 784 "Return the line number of POS (defaults to point). | |
| 785 If RESPECT-NARROWING is non-nil, then the narrowed line number is returned; | |
| 786 otherwise, the absolute line number is returned. The returned line can always | |
| 787 be given to `goto-line' to get back to the current line." | |
| 788 (if (and pos (/= pos (point))) | |
| 789 (save-excursion | |
| 790 (goto-char pos) | |
| 791 (line-number nil respect-narrowing)) | |
| 792 (1+ (count-lines (if respect-narrowing (point-min) 1) (point-at-bol))))) | |
| 793 | |
| 3000 | 794 ;; FSF 22.0.50.1 (CVS) version of above. |
| 795 (defun line-number-at-pos (&optional pos) | |
| 796 (line-number pos t)) | |
| 797 | |
| 428 | 798 (defun count-lines (start end &optional ignore-invisible-lines-flag) |
| 799 "Return number of lines between START and END. | |
| 800 This is usually the number of newlines between them, | |
| 801 but can be one more if START is not equal to END | |
| 802 and the greater of them is not at the start of a line. | |
| 803 | |
| 804 With optional IGNORE-INVISIBLE-LINES-FLAG non-nil, lines collapsed with | |
| 442 | 805 selective-display are excluded from the line count. |
| 806 | |
| 807 NOTE: The expression to return the current line number is not obvious: | |
| 808 | |
| 3767 | 809 \(1+ \(count-lines 1 \(point-at-bol))) |
| 442 | 810 |
| 811 See also `line-number'." | |
| 428 | 812 (save-excursion |
| 813 (save-restriction | |
| 814 (narrow-to-region start end) | |
| 815 (goto-char (point-min)) | |
| 816 (if (and (not ignore-invisible-lines-flag) (eq selective-display t)) | |
| 817 (save-match-data | |
| 818 (let ((done 0)) | |
| 819 (while (re-search-forward "[\n\C-m]" nil t 40) | |
| 820 (setq done (+ 40 done))) | |
| 821 (while (re-search-forward "[\n\C-m]" nil t 1) | |
| 822 (setq done (+ 1 done))) | |
| 823 (goto-char (point-max)) | |
| 824 (if (and (/= start end) | |
| 825 (not (bolp))) | |
| 826 (1+ done) | |
| 827 done))) | |
| 828 (- (buffer-size) (forward-line (buffer-size))))))) | |
| 829 | |
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830 (defun what-cursor-position (&optional detail) |
| 3724 | 831 "Print info on cursor position (on screen and within buffer). |
| 832 Also describe the character after point, giving its UCS code point and Mule | |
| 833 charset and codes; for ASCII characters, give its code in octal, decimal and | |
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834 hex. |
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835 |
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836 With prefix argument, show extended details about the character in a |
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837 separate buffer. See also the command `describe-char'." |
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838 ;; XEmacs change "_" |
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839 (interactive "_P") |
| 428 | 840 (let* ((char (char-after (point))) ; XEmacs |
| 841 (beg (point-min)) | |
| 842 (end (point-max)) | |
| 843 (pos (point)) | |
| 844 (total (buffer-size)) | |
| 845 (percent (if (> total 50000) | |
| 846 ;; Avoid overflow from multiplying by 100! | |
| 847 (/ (+ (/ total 200) (1- pos)) (max (/ total 100) 1)) | |
| 848 (/ (+ (/ total 2) (* 100 (1- pos))) (max total 1)))) | |
| 849 (hscroll (if (= (window-hscroll) 0) | |
| 850 "" | |
| 851 (format " Hscroll=%d" (window-hscroll)))) | |
| 3724 | 852 (col (+ (current-column) (if column-number-start-at-one 1 0))) |
| 853 (unicode (and char (encode-char char 'ucs))) | |
| 854 (unicode-string (and unicode (natnump unicode) | |
| 855 (format (if (> unicode #xFFFF) "U+%06X" "U+%04X") | |
| 856 unicode))) | |
| 857 (narrowed-details (if (or (/= beg 1) (/= end (1+ total))) | |
| 858 (format " <%d - %d>" beg end) | |
| 859 ""))) | |
| 860 | |
| 428 | 861 (if (= pos end) |
| 3724 | 862 (message "point=%d of %d(%d%%)%s column %d %s" |
| 863 pos total percent narrowed-details col hscroll) | |
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864 (if detail |
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865 (describe-char (point))) |
| 3724 | 866 ;; XEmacs: don't use single-key-description, treat non-ASCII |
| 867 ;; characters differently. | |
| 868 (if (< char ?\x80) | |
| 869 (message "Char: %s (0%o, %d, %x) point=%d of %d(%d%%)%s column %d %s" | |
| 870 (text-char-description char) char char char pos total | |
| 871 percent narrowed-details col hscroll) | |
| 872 (message "Char: %s (%s %s) point=%d of %d(%d%%)%s column %d %s" | |
| 873 (text-char-description char) unicode-string | |
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874 (mapconcat #'prin1-to-string (split-char char) " ") |
| 3724 | 875 pos total |
| 876 percent narrowed-details col hscroll))))) | |
| 428 | 877 |
| 878 (defun fundamental-mode () | |
| 879 "Major mode not specialized for anything in particular. | |
| 880 Other major modes are defined by comparison with this one." | |
| 881 (interactive) | |
| 882 (kill-all-local-variables)) | |
| 883 | |
| 884 ;; XEmacs the following are declared elsewhere | |
| 885 ;(defvar read-expression-map (cons 'keymap minibuffer-local-map) | |
| 886 ; "Minibuffer keymap used for reading Lisp expressions.") | |
| 887 ;(define-key read-expression-map "\M-\t" 'lisp-complete-symbol) | |
| 888 | |
| 889 ;(put 'eval-expression 'disabled t) | |
| 890 | |
| 891 ;(defvar read-expression-history nil) | |
| 892 | |
| 893 ;; We define this, rather than making `eval' interactive, | |
| 894 ;; for the sake of completion of names like eval-region, eval-current-buffer. | |
| 895 (defun eval-expression (expression &optional eval-expression-insert-value) | |
| 896 "Evaluate EXPRESSION and print value in minibuffer. | |
| 897 Value is also consed on to front of the variable `values'. | |
| 898 With prefix argument, insert the result to the current buffer." | |
| 899 ;(interactive "xEval: ") | |
| 900 (interactive | |
| 901 (list (read-from-minibuffer "Eval: " | |
| 902 nil read-expression-map t | |
| 903 'read-expression-history) | |
| 904 current-prefix-arg)) | |
| 905 (setq values (cons (eval expression) values)) | |
| 906 (prin1 (car values) | |
| 907 (if eval-expression-insert-value (current-buffer) t))) | |
| 908 | |
| 909 ;; XEmacs -- extra parameter (variant, but equivalent logic) | |
| 444 | 910 (defun edit-and-eval-command (prompt form &optional history) |
| 911 "Prompting with PROMPT, let user edit FORM and eval result. | |
| 912 FORM is a Lisp expression. Let user edit that expression in | |
| 428 | 913 the minibuffer, then read and evaluate the result." |
| 444 | 914 (let ((form (read-expression prompt |
| 915 ;; first try to format the thing readably; | |
| 916 ;; and if that fails, print it normally. | |
| 917 (condition-case () | |
| 918 (let ((print-readably t)) | |
| 919 (prin1-to-string form)) | |
| 920 (error (prin1-to-string form))) | |
| 921 (or history '(command-history . 1))))) | |
| 428 | 922 (or history (setq history 'command-history)) |
| 923 (if (consp history) | |
| 924 (setq history (car history))) | |
| 925 (if (eq history t) | |
| 926 nil | |
| 444 | 927 ;; If form was added to the history as a string, |
| 428 | 928 ;; get rid of that. We want only evallable expressions there. |
| 929 (if (stringp (car (symbol-value history))) | |
| 930 (set history (cdr (symbol-value history)))) | |
| 931 | |
| 444 | 932 ;; If form to be redone does not match front of history, |
| 428 | 933 ;; add it to the history. |
| 444 | 934 (or (equal form (car (symbol-value history))) |
| 935 (set history (cons form (symbol-value history))))) | |
| 936 (eval form))) | |
| 428 | 937 |
| 938 (defun repeat-complex-command (arg) | |
| 939 "Edit and re-evaluate last complex command, or ARGth from last. | |
| 940 A complex command is one which used the minibuffer. | |
| 941 The command is placed in the minibuffer as a Lisp form for editing. | |
| 942 The result is executed, repeating the command as changed. | |
| 943 If the command has been changed or is not the most recent previous command | |
| 944 it is added to the front of the command history. | |
| 945 You can use the minibuffer history commands \\<minibuffer-local-map>\\[next-history-element] and \\[previous-history-element] | |
| 946 to get different commands to edit and resubmit." | |
| 947 (interactive "p") | |
| 948 ;; XEmacs: It looks like our version is better -sb | |
| 949 (let ((print-level nil)) | |
| 950 (edit-and-eval-command "Redo: " | |
| 951 (or (nth (1- arg) command-history) | |
| 952 (error "")) | |
| 953 (cons 'command-history arg)))) | |
| 954 | |
| 955 ;; XEmacs: Functions moved to minibuf.el | |
| 956 ;; previous-matching-history-element | |
| 957 ;; next-matching-history-element | |
| 958 ;; next-history-element | |
| 959 ;; previous-history-element | |
| 960 ;; next-complete-history-element | |
| 961 ;; previous-complete-history-element | |
| 962 | |
| 3361 | 963 (defun goto-line (line &optional buffer) |
| 964 "Goto line LINE, counting from line 1 at beginning of BUFFER." | |
| 428 | 965 (interactive "NGoto line: ") |
| 444 | 966 (setq line (prefix-numeric-value line)) |
| 3361 | 967 (if buffer |
| 968 (let ((window (get-buffer-window buffer))) | |
| 969 (if window (select-window window) | |
| 970 (switch-to-buffer-other-window buffer)))) | |
| 428 | 971 (save-restriction |
| 972 (widen) | |
| 973 (goto-char 1) | |
| 974 (if (eq selective-display t) | |
| 444 | 975 (re-search-forward "[\n\C-m]" nil 'end (1- line)) |
| 976 (forward-line (1- line))))) | |
| 428 | 977 |
| 771 | 978 ;[Put this on C-x u, so we can force that rather than C-_ into startup msg] |
| 979 ;No more, stop pandering to TTY users. | |
| 428 | 980 (define-function 'advertised-undo 'undo) |
| 981 | |
| 444 | 982 (defun undo (&optional count) |
| 428 | 983 "Undo some previous changes. |
| 984 Repeat this command to undo more changes. | |
| 985 A numeric argument serves as a repeat count." | |
| 986 (interactive "*p") | |
| 987 ;; If we don't get all the way through, make last-command indicate that | |
| 988 ;; for the following command. | |
| 989 (setq this-command t) | |
| 990 (let ((modified (buffer-modified-p)) | |
| 991 (recent-save (recent-auto-save-p))) | |
| 992 (or (eq (selected-window) (minibuffer-window)) | |
| 993 (display-message 'command "Undo!")) | |
| 994 (or (and (eq last-command 'undo) | |
| 995 (eq (current-buffer) last-undo-buffer)) ; XEmacs | |
| 996 (progn (undo-start) | |
| 997 (undo-more 1))) | |
| 444 | 998 (undo-more (or count 1)) |
| 428 | 999 ;; Don't specify a position in the undo record for the undo command. |
| 1000 ;; Instead, undoing this should move point to where the change is. | |
| 1001 (let ((tail buffer-undo-list) | |
| 1002 done) | |
| 1003 (while (and tail (not done) (not (null (car tail)))) | |
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1004 (if (fixnump (car tail)) |
| 428 | 1005 (progn |
| 1006 (setq done t) | |
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1007 (setq buffer-undo-list (delete* (car tail) buffer-undo-list)))) |
| 428 | 1008 (setq tail (cdr tail)))) |
| 1009 (and modified (not (buffer-modified-p)) | |
| 1010 (delete-auto-save-file-if-necessary recent-save))) | |
| 1011 ;; If we do get all the way through, make this-command indicate that. | |
| 1012 (setq this-command 'undo)) | |
| 1013 | |
| 1014 (defvar pending-undo-list nil | |
| 1015 "Within a run of consecutive undo commands, list remaining to be undone.") | |
| 1016 | |
| 1017 (defvar last-undo-buffer nil) ; XEmacs | |
| 1018 | |
| 1019 (defun undo-start () | |
| 1020 "Set `pending-undo-list' to the front of the undo list. | |
| 1021 The next call to `undo-more' will undo the most recently made change." | |
| 1022 (if (eq buffer-undo-list t) | |
| 1023 (error "No undo information in this buffer")) | |
| 1024 (setq pending-undo-list buffer-undo-list)) | |
| 1025 | |
| 1026 (defun undo-more (count) | |
| 1027 "Undo back N undo-boundaries beyond what was already undone recently. | |
| 1028 Call `undo-start' to get ready to undo recent changes, | |
| 1029 then call `undo-more' one or more times to undo them." | |
| 1030 (or pending-undo-list | |
| 1031 (error "No further undo information")) | |
| 1032 (setq pending-undo-list (primitive-undo count pending-undo-list) | |
| 1033 last-undo-buffer (current-buffer))) ; XEmacs | |
| 1034 | |
| 844 | 1035 (defun undo-all-changes () |
| 1036 "Keep undoing till the start of the undo list is reached. | |
| 1037 Undoes all changes, even past a file save. Especially useful when you've | |
| 1038 saved the file at some point." | |
| 1039 (interactive) | |
| 1040 (undo-start) | |
| 1041 (while pending-undo-list (undo-more 1))) | |
| 1042 | |
| 428 | 1043 ;; XEmacs |
| 1044 (defun call-with-transparent-undo (fn &rest args) | |
| 1045 "Apply FN to ARGS, and then undo all changes made by FN to the current | |
| 1046 buffer. The undo records are processed even if FN returns non-locally. | |
| 1047 There is no trace of the changes made by FN in the buffer's undo history. | |
| 1048 | |
| 1049 You can use this in a write-file-hooks function with continue-save-buffer | |
| 1050 to make the contents of a disk file differ from its in-memory buffer." | |
| 1051 (let ((buffer-undo-list nil) | |
| 1052 ;; Kludge to prevent undo list truncation: | |
| 1053 (undo-high-threshold -1) | |
| 1054 (undo-threshold -1) | |
| 1055 (obuffer (current-buffer))) | |
| 1056 (unwind-protect | |
| 1057 (apply fn args) | |
| 1058 ;; Go to the buffer we will restore and make it writable: | |
| 1059 (set-buffer obuffer) | |
| 1060 (save-excursion | |
| 1061 (let ((buffer-read-only nil)) | |
| 1062 (save-restriction | |
| 1063 (widen) | |
| 1064 ;; Perform all undos, with further undo logging disabled: | |
| 1065 (let ((tail buffer-undo-list)) | |
| 1066 (setq buffer-undo-list t) | |
| 1067 (while tail | |
| 1068 (setq tail (primitive-undo (length tail) tail)))))))))) | |
| 1069 | |
| 1070 ;; XEmacs: The following are in other files | |
| 1071 ;; shell-command-history | |
| 1072 ;; shell-command-switch | |
| 1073 ;; shell-command | |
| 1074 ;; shell-command-sentinel | |
| 1075 | |
| 1076 | |
| 1077 (defconst universal-argument-map | |
| 1078 (let ((map (make-sparse-keymap))) | |
| 1079 (set-keymap-default-binding map 'universal-argument-other-key) | |
| 1080 ;FSFmacs (define-key map [switch-frame] nil) | |
| 1081 (define-key map [(t)] 'universal-argument-other-key) | |
| 1082 (define-key map [(meta t)] 'universal-argument-other-key) | |
| 1083 (define-key map [(control u)] 'universal-argument-more) | |
| 1084 (define-key map [?-] 'universal-argument-minus) | |
| 1085 (define-key map [?0] 'digit-argument) | |
| 1086 (define-key map [?1] 'digit-argument) | |
| 1087 (define-key map [?2] 'digit-argument) | |
| 1088 (define-key map [?3] 'digit-argument) | |
| 1089 (define-key map [?4] 'digit-argument) | |
| 1090 (define-key map [?5] 'digit-argument) | |
| 1091 (define-key map [?6] 'digit-argument) | |
| 1092 (define-key map [?7] 'digit-argument) | |
| 1093 (define-key map [?8] 'digit-argument) | |
| 1094 (define-key map [?9] 'digit-argument) | |
| 1095 map) | |
| 1096 "Keymap used while processing \\[universal-argument].") | |
| 1097 | |
| 1098 (defvar universal-argument-num-events nil | |
| 1099 "Number of argument-specifying events read by `universal-argument'. | |
| 1100 `universal-argument-other-key' uses this to discard those events | |
| 1101 from (this-command-keys), and reread only the final command.") | |
| 1102 | |
| 1103 (defun universal-argument () | |
| 1104 "Begin a numeric argument for the following command. | |
| 1105 Digits or minus sign following \\[universal-argument] make up the numeric argument. | |
| 1106 \\[universal-argument] following the digits or minus sign ends the argument. | |
| 1107 \\[universal-argument] without digits or minus sign provides 4 as argument. | |
| 1108 Repeating \\[universal-argument] without digits or minus sign | |
| 1109 multiplies the argument by 4 each time." | |
| 1110 (interactive) | |
| 1111 (setq prefix-arg (list 4)) | |
| 1112 (setq zmacs-region-stays t) ; XEmacs | |
| 1113 (setq universal-argument-num-events (length (this-command-keys))) | |
| 1114 (setq overriding-terminal-local-map universal-argument-map)) | |
| 1115 | |
| 1116 ;; A subsequent C-u means to multiply the factor by 4 if we've typed | |
| 1117 ;; nothing but C-u's; otherwise it means to terminate the prefix arg. | |
| 1118 (defun universal-argument-more (arg) | |
| 1119 (interactive "_P") ; XEmacs | |
| 1120 (if (consp arg) | |
| 1121 (setq prefix-arg (list (* 4 (car arg)))) | |
| 1122 (setq prefix-arg arg) | |
| 1123 (setq overriding-terminal-local-map nil)) | |
| 1124 (setq universal-argument-num-events (length (this-command-keys)))) | |
| 1125 | |
| 1126 (defun negative-argument (arg) | |
| 1127 "Begin a negative numeric argument for the next command. | |
| 1128 \\[universal-argument] following digits or minus sign ends the argument." | |
| 1129 (interactive "_P") ; XEmacs | |
| 1130 (cond ((integerp arg) | |
| 1131 (setq prefix-arg (- arg))) | |
| 1132 ((eq arg '-) | |
| 1133 (setq prefix-arg nil)) | |
| 1134 (t | |
| 1135 (setq prefix-arg '-))) | |
| 1136 (setq universal-argument-num-events (length (this-command-keys))) | |
| 1137 (setq overriding-terminal-local-map universal-argument-map)) | |
| 1138 | |
| 1139 ;; XEmacs: This function not synched with FSF | |
| 1140 (defun digit-argument (arg) | |
| 1141 "Part of the numeric argument for the next command. | |
| 1142 \\[universal-argument] following digits or minus sign ends the argument." | |
| 1143 (interactive "_P") ; XEmacs | |
| 1144 (let* ((event last-command-event) | |
| 1145 (key (and (key-press-event-p event) | |
| 1146 (event-key event))) | |
| 1147 (digit (and key (characterp key) (>= key ?0) (<= key ?9) | |
| 1148 (- key ?0)))) | |
| 1149 (if (null digit) | |
| 1150 (universal-argument-other-key arg) | |
| 1151 (cond ((integerp arg) | |
| 1152 (setq prefix-arg (+ (* arg 10) | |
| 1153 (if (< arg 0) (- digit) digit)))) | |
| 1154 ((eq arg '-) | |
| 1155 ;; Treat -0 as just -, so that -01 will work. | |
| 1156 (setq prefix-arg (if (zerop digit) '- (- digit)))) | |
| 1157 (t | |
| 1158 (setq prefix-arg digit))) | |
| 1159 (setq universal-argument-num-events (length (this-command-keys))) | |
| 1160 (setq overriding-terminal-local-map universal-argument-map)))) | |
| 1161 | |
| 1162 ;; For backward compatibility, minus with no modifiers is an ordinary | |
| 1163 ;; command if digits have already been entered. | |
| 1164 (defun universal-argument-minus (arg) | |
| 1165 (interactive "_P") ; XEmacs | |
| 1166 (if (integerp arg) | |
| 1167 (universal-argument-other-key arg) | |
| 1168 (negative-argument arg))) | |
| 1169 | |
| 1170 ;; Anything else terminates the argument and is left in the queue to be | |
| 1171 ;; executed as a command. | |
| 1172 (defun universal-argument-other-key (arg) | |
| 1173 (interactive "_P") ; XEmacs | |
| 1174 (setq prefix-arg arg) | |
| 1175 (let* ((key (this-command-keys)) | |
| 1176 ;; FSF calls silly function `listify-key-sequence' here. | |
| 1177 (keylist (append key nil))) | |
| 1178 (setq unread-command-events | |
| 1179 (append (nthcdr universal-argument-num-events keylist) | |
| 1180 unread-command-events))) | |
| 1181 (reset-this-command-lengths) | |
| 1182 (setq overriding-terminal-local-map nil)) | |
| 1183 | |
| 1184 | |
| 1185 ;; XEmacs -- keep zmacs-region active. | |
| 444 | 1186 (defun forward-to-indentation (count) |
| 1187 "Move forward COUNT lines and position at first nonblank character." | |
| 428 | 1188 (interactive "_p") |
| 444 | 1189 (forward-line count) |
| 428 | 1190 (skip-chars-forward " \t")) |
| 1191 | |
| 444 | 1192 (defun backward-to-indentation (count) |
| 1193 "Move backward COUNT lines and position at first nonblank character." | |
| 428 | 1194 (interactive "_p") |
| 444 | 1195 (forward-line (- count)) |
| 428 | 1196 (skip-chars-forward " \t")) |
| 1197 | |
| 1198 (defcustom kill-whole-line nil | |
| 462 | 1199 "*If non-nil, kill the whole line if point is at the beginning. |
| 1200 Otherwise, `kill-line' kills only up to the end of the line, but not | |
| 503 | 1201 the terminating newline. |
| 462 | 1202 |
| 1203 WARNING: This is a misnamed variable! It should be called something | |
| 1204 like `kill-whole-line-when-at-beginning'. If you simply want | |
| 1205 \\[kill-line] to kill the entire current line, bind it to the function | |
| 1206 `kill-entire-line'. " | |
| 1207 :type 'boolean | |
| 428 | 1208 :group 'killing) |
| 1209 | |
| 503 | 1210 (defun kill-line-1 (arg entire-line) |
| 462 | 1211 (kill-region (if entire-line |
| 442 | 1212 (save-excursion |
| 1213 (beginning-of-line) | |
| 1214 (point)) | |
| 1215 (point)) | |
| 428 | 1216 ;; Don't shift point before doing the delete; that way, |
| 1217 ;; undo will record the right position of point. | |
| 1218 ;; FSF | |
| 1219 ; ;; It is better to move point to the other end of the kill | |
| 1220 ; ;; before killing. That way, in a read-only buffer, point | |
| 1221 ; ;; moves across the text that is copied to the kill ring. | |
| 1222 ; ;; The choice has no effect on undo now that undo records | |
| 1223 ; ;; the value of point from before the command was run. | |
| 1224 ; (progn | |
| 1225 (save-excursion | |
| 1226 (if arg | |
| 1227 (forward-line (prefix-numeric-value arg)) | |
| 1228 (if (eobp) | |
| 1229 (signal 'end-of-buffer nil)) | |
| 442 | 1230 (if (or (looking-at "[ \t]*$") |
| 462 | 1231 (or entire-line |
| 503 | 1232 (and kill-whole-line (bolp)))) |
| 428 | 1233 (forward-line 1) |
| 1234 (end-of-line))) | |
| 1235 (point)))) | |
| 1236 | |
| 462 | 1237 (defun kill-entire-line (&optional arg) |
| 1238 "Kill the entire line. | |
| 1239 With prefix argument, kill that many lines from point. Negative | |
| 1240 arguments kill lines backward. | |
| 1241 | |
| 1242 When calling from a program, nil means \"no arg\", | |
| 1243 a number counts as a prefix arg." | |
| 1244 (interactive "*P") | |
| 503 | 1245 (kill-line-1 arg t)) |
| 462 | 1246 |
| 1247 (defun kill-line (&optional arg) | |
| 1248 "Kill the rest of the current line, or the entire line. | |
| 1249 If no nonblanks there, kill thru newline. If called interactively, | |
| 1250 may kill the entire line when given no argument at the beginning of a | |
| 1251 line; see `kill-whole-line'. With prefix argument, kill that many | |
| 1252 lines from point. Negative arguments kill lines backward. | |
| 1253 | |
| 1254 WARNING: This is a misnamed function! It should be called something | |
| 1255 like `kill-to-end-of-line'. If you simply want to kill the entire | |
| 1256 current line, use `kill-entire-line'. | |
| 1257 | |
| 1258 When calling from a program, nil means \"no arg\", | |
| 1259 a number counts as a prefix arg." | |
| 1260 (interactive "*P") | |
| 503 | 1261 (kill-line-1 arg nil)) |
| 462 | 1262 |
| 428 | 1263 ;; XEmacs |
| 1264 (defun backward-kill-line nil | |
| 1265 "Kill back to the beginning of the line." | |
| 1266 (interactive) | |
| 1267 (let ((point (point))) | |
| 1268 (beginning-of-line nil) | |
| 1269 (kill-region (point) point))) | |
| 1270 | |
| 1271 | |
| 1272 ;;;; Window system cut and paste hooks. | |
| 1273 ;;; | |
| 1274 ;;; I think that kill-hooks is a better name and more general mechanism | |
| 1275 ;;; than interprogram-cut-function (from FSFmacs). I don't like the behavior | |
| 1276 ;;; of interprogram-paste-function: ^Y should always come from the kill ring, | |
| 1277 ;;; not the X selection. But if that were provided, it should be called (and | |
| 1278 ;;; behave as) yank-hooks instead. -- jwz | |
| 1279 | |
| 1280 ;; [... code snipped ...] | |
| 1281 | |
| 1282 (defcustom kill-hooks nil | |
| 1283 "*Functions run when something is added to the XEmacs kill ring. | |
| 1284 These functions are called with one argument, the string most recently | |
| 1285 cut or copied. You can use this to, for example, make the most recent | |
| 1286 kill become the X Clipboard selection." | |
| 1287 :type 'hook | |
| 1288 :group 'killing) | |
| 1289 | |
| 1290 ;;; `kill-hooks' seems not sufficient because | |
| 1291 ;;; `interprogram-cut-function' requires more variable about to rotate | |
| 1292 ;;; the cut buffers. I'm afraid to change interface of `kill-hooks', | |
| 1293 ;;; so I add it. (1997-11-03 by MORIOKA Tomohiko) | |
| 1294 | |
| 442 | 1295 (defcustom interprogram-cut-function 'own-clipboard |
| 428 | 1296 "Function to call to make a killed region available to other programs. |
| 1297 | |
| 1298 Most window systems provide some sort of facility for cutting and | |
| 1299 pasting text between the windows of different programs. | |
| 1300 This variable holds a function that Emacs calls whenever text | |
| 1301 is put in the kill ring, to make the new kill available to other | |
| 1302 programs. | |
| 1303 | |
| 1304 The function takes one or two arguments. | |
| 1305 The first argument, TEXT, is a string containing | |
| 1306 the text which should be made available. | |
| 1307 The second, PUSH, if non-nil means this is a \"new\" kill; | |
| 843 | 1308 nil means appending to an \"old\" kill. |
| 1309 | |
| 1310 One reasonable choice is `own-clipboard' (the default)." | |
| 442 | 1311 :type '(radio (function-item :tag "Send to Clipboard" |
| 1312 :format "%t\n" | |
| 1313 own-clipboard) | |
| 1314 (const :tag "None" nil) | |
| 1315 (function :tag "Other")) | |
| 1316 :group 'killing) | |
| 1317 | |
| 843 | 1318 (defcustom interprogram-paste-function 'get-clipboard-foreign |
| 428 | 1319 "Function to call to get text cut from other programs. |
| 1320 | |
| 1321 Most window systems provide some sort of facility for cutting and | |
| 1322 pasting text between the windows of different programs. | |
| 1323 This variable holds a function that Emacs calls to obtain | |
| 1324 text that other programs have provided for pasting. | |
| 1325 | |
| 1326 The function should be called with no arguments. If the function | |
| 1327 returns nil, then no other program has provided such text, and the top | |
| 1328 of the Emacs kill ring should be used. If the function returns a | |
| 1329 string, that string should be put in the kill ring as the latest kill. | |
| 1330 | |
| 1331 Note that the function should return a string only if a program other | |
| 1332 than Emacs has provided a string for pasting; if Emacs provided the | |
| 1333 most recent string, the function should return nil. If it is | |
| 1334 difficult to tell whether Emacs or some other program provided the | |
| 1335 current string, it is probably good enough to return nil if the string | |
| 843 | 1336 is equal (according to `string=') to the last text Emacs provided. |
| 1337 | |
| 1338 Reasonable choices include `get-clipboard-foreign' (the default), and | |
| 1339 functions calling `get-selection-foreign' (q.v.)." | |
| 442 | 1340 :type '(radio (function-item :tag "Get from Clipboard" |
| 1341 :format "%t\n" | |
| 843 | 1342 get-clipboard-foreign) |
| 442 | 1343 (const :tag "None" nil) |
| 1344 (function :tag "Other")) | |
| 1345 :group 'killing) | |
| 428 | 1346 |
| 1347 | |
| 1348 ;;;; The kill ring data structure. | |
| 1349 | |
| 1350 (defvar kill-ring nil | |
| 1351 "List of killed text sequences. | |
| 1352 Since the kill ring is supposed to interact nicely with cut-and-paste | |
| 1353 facilities offered by window systems, use of this variable should | |
| 1354 interact nicely with `interprogram-cut-function' and | |
| 1355 `interprogram-paste-function'. The functions `kill-new', | |
| 1356 `kill-append', and `current-kill' are supposed to implement this | |
| 1357 interaction; you may want to use them instead of manipulating the kill | |
| 1358 ring directly.") | |
| 1359 | |
| 829 | 1360 (defcustom kill-ring-max 60 |
| 428 | 1361 "*Maximum length of kill ring before oldest elements are thrown away." |
| 1362 :type 'integer | |
| 1363 :group 'killing) | |
| 1364 | |
| 1365 (defvar kill-ring-yank-pointer nil | |
| 1366 "The tail of the kill ring whose car is the last thing yanked.") | |
| 1367 | |
| 1368 (defun kill-new (string &optional replace) | |
| 1369 "Make STRING the latest kill in the kill ring. | |
| 444 | 1370 Set `kill-ring-yank-pointer' to point to it. |
| 829 | 1371 If `interprogram-cut-function' is non-nil, apply it to STRING. |
| 428 | 1372 Run `kill-hooks'. |
| 1373 Optional second argument REPLACE non-nil means that STRING will replace | |
| 1374 the front of the kill ring, rather than being added to the list." | |
| 1375 ; (and (fboundp 'menu-bar-update-yank-menu) | |
| 1376 ; (menu-bar-update-yank-menu string (and replace (car kill-ring)))) | |
| 829 | 1377 (if (and replace kill-ring) |
| 428 | 1378 (setcar kill-ring string) |
| 1379 (setq kill-ring (cons string kill-ring)) | |
| 1380 (if (> (length kill-ring) kill-ring-max) | |
| 1381 (setcdr (nthcdr (1- kill-ring-max) kill-ring) nil))) | |
| 1382 (setq kill-ring-yank-pointer kill-ring) | |
| 1383 (if interprogram-cut-function | |
| 1384 (funcall interprogram-cut-function string (not replace))) | |
| 1385 (run-hook-with-args 'kill-hooks string)) | |
| 1386 | |
| 1387 (defun kill-append (string before-p) | |
| 1388 "Append STRING to the end of the latest kill in the kill ring. | |
| 1389 If BEFORE-P is non-nil, prepend STRING to the kill. | |
| 1390 Run `kill-hooks'." | |
| 1391 (kill-new (if before-p | |
| 1392 (concat string (car kill-ring)) | |
| 1393 (concat (car kill-ring) string)) t)) | |
| 1394 | |
| 1395 (defun current-kill (n &optional do-not-move) | |
| 1396 "Rotate the yanking point by N places, and then return that kill. | |
| 1397 If N is zero, `interprogram-paste-function' is set, and calling it | |
| 1398 returns a string, then that string is added to the front of the | |
| 1399 kill ring and returned as the latest kill. | |
| 1400 If optional arg DO-NOT-MOVE is non-nil, then don't actually move the | |
| 1401 yanking point\; just return the Nth kill forward." | |
| 1402 (let ((interprogram-paste (and (= n 0) | |
| 1403 interprogram-paste-function | |
| 1404 (funcall interprogram-paste-function)))) | |
| 1405 (if interprogram-paste | |
| 1406 (progn | |
| 1407 ;; Disable the interprogram cut function when we add the new | |
| 1408 ;; text to the kill ring, so Emacs doesn't try to own the | |
| 1409 ;; selection, with identical text. | |
| 1410 (let ((interprogram-cut-function nil)) | |
| 1411 (kill-new interprogram-paste)) | |
| 1412 interprogram-paste) | |
| 1413 (or kill-ring (error "Kill ring is empty")) | |
| 1414 (let* ((tem (nthcdr (mod (- n (length kill-ring-yank-pointer)) | |
| 1415 (length kill-ring)) | |
| 1416 kill-ring))) | |
| 1417 (or do-not-move | |
| 1418 (setq kill-ring-yank-pointer tem)) | |
| 1419 (car tem))))) | |
| 1420 | |
| 1421 | |
| 1422 | |
| 1423 ;;;; Commands for manipulating the kill ring. | |
| 1424 | |
| 1425 ;; In FSF killing read-only text just pastes it into kill-ring. Which | |
| 1426 ;; is a very bad idea -- see Jamie's comment below. | |
| 1427 | |
| 1428 ;(defvar kill-read-only-ok nil | |
| 1429 ; "*Non-nil means don't signal an error for killing read-only text.") | |
| 1430 | |
| 444 | 1431 (defun kill-region (start end &optional verbose) ; verbose is XEmacs addition |
| 428 | 1432 "Kill between point and mark. |
| 1433 The text is deleted but saved in the kill ring. | |
| 1434 The command \\[yank] can retrieve it from there. | |
| 1435 \(If you want to kill and then yank immediately, use \\[copy-region-as-kill].) | |
| 1436 | |
| 1437 This is the primitive for programs to kill text (as opposed to deleting it). | |
| 1438 Supply two arguments, character numbers indicating the stretch of text | |
| 1439 to be killed. | |
| 1440 Any command that calls this function is a \"kill command\". | |
| 1441 If the previous command was also a kill command, | |
| 1442 the text killed this time appends to the text killed last time | |
| 1443 to make one entry in the kill ring." | |
| 1444 (interactive "*r\np") | |
| 1445 ; (interactive | |
| 1446 ; (let ((region-hack (and zmacs-regions (eq last-command 'yank)))) | |
| 1447 ; ;; This lets "^Y^W" work. I think this is dumb, but zwei did it. | |
| 1448 ; (if region-hack (zmacs-activate-region)) | |
| 1449 ; (prog1 | |
| 1450 ; (list (point) (mark) current-prefix-arg) | |
| 1451 ; (if region-hack (zmacs-deactivate-region))))) | |
| 444 | 1452 ;; start and end can be markers but the rest of this function is |
| 428 | 1453 ;; written as if they are only integers |
| 444 | 1454 (if (markerp start) (setq start (marker-position start))) |
| 428 | 1455 (if (markerp end) (setq end (marker-position end))) |
| 444 | 1456 (or (and start end) (if zmacs-regions ;; rewritten for I18N3 snarfing |
| 428 | 1457 (error "The region is not active now") |
| 1458 (error "The mark is not set now"))) | |
| 1459 (if verbose (if buffer-read-only | |
| 1460 (lmessage 'command "Copying %d characters" | |
| 444 | 1461 (- (max start end) (min start end))) |
| 428 | 1462 (lmessage 'command "Killing %d characters" |
| 444 | 1463 (- (max start end) (min start end))))) |
| 428 | 1464 (cond |
| 1465 | |
| 1466 ;; I don't like this large change in behavior -- jwz | |
| 1467 ;; Read-Only text means it shouldn't be deleted, so I'm restoring | |
| 1468 ;; this code, but only for text-properties and not full extents. -sb | |
| 1469 ;; If the buffer is read-only, we should beep, in case the person | |
| 1470 ;; just isn't aware of this. However, there's no harm in putting | |
| 1471 ;; the region's text in the kill ring, anyway. | |
| 1472 ((or (and buffer-read-only (not inhibit-read-only)) | |
| 444 | 1473 (text-property-not-all (min start end) (max start end) 'read-only nil)) |
| 428 | 1474 ;; This is redundant. |
| 1475 ;; (if verbose (message "Copying %d characters" | |
| 444 | 1476 ;; (- (max start end) (min start end)))) |
| 1477 (copy-region-as-kill start end) | |
| 428 | 1478 ;; ;; This should always barf, and give us the correct error. |
| 1479 ;; (if kill-read-only-ok | |
| 1480 ;; (message "Read only text copied to kill ring") | |
| 1481 (setq this-command 'kill-region) | |
| 1482 (barf-if-buffer-read-only) | |
| 1483 (signal 'buffer-read-only (list (current-buffer)))) | |
| 1484 | |
| 1485 ;; In certain cases, we can arrange for the undo list and the kill | |
| 1486 ;; ring to share the same string object. This code does that. | |
| 1487 ((not (or (eq buffer-undo-list t) | |
| 1488 (eq last-command 'kill-region) | |
| 1489 ;; Use = since positions may be numbers or markers. | |
| 444 | 1490 (= start end))) |
| 428 | 1491 ;; Don't let the undo list be truncated before we can even access it. |
| 1492 ;; FSF calls this `undo-strong-limit' | |
| 444 | 1493 (let ((undo-high-threshold (+ (- end start) 100)) |
| 428 | 1494 ;(old-list buffer-undo-list) |
| 1495 tail) | |
| 444 | 1496 (delete-region start end) |
| 428 | 1497 ;; Search back in buffer-undo-list for this string, |
| 1498 ;; in case a change hook made property changes. | |
| 1499 (setq tail buffer-undo-list) | |
| 1500 (while (and tail | |
| 1501 (not (stringp (car-safe (car-safe tail))))) ; XEmacs | |
| 1502 (pop tail)) | |
| 1503 ;; Take the same string recorded for undo | |
| 1504 ;; and put it in the kill-ring. | |
| 1505 (and tail | |
| 1506 (kill-new (car (car tail)))))) | |
| 1507 | |
| 1508 (t | |
| 1509 ;; if undo is not kept, grab the string then delete it (which won't | |
| 1510 ;; add another string to the undo list). | |
| 444 | 1511 (copy-region-as-kill start end) |
| 1512 (delete-region start end))) | |
| 428 | 1513 (setq this-command 'kill-region)) |
| 1514 | |
| 1515 ;; copy-region-as-kill no longer sets this-command, because it's confusing | |
| 1516 ;; to get two copies of the text when the user accidentally types M-w and | |
| 1517 ;; then corrects it with the intended C-w. | |
| 444 | 1518 (defun copy-region-as-kill (start end) |
| 428 | 1519 "Save the region as if killed, but don't kill it. |
| 1520 Run `kill-hooks'." | |
| 1521 (interactive "r") | |
| 1522 (if (eq last-command 'kill-region) | |
| 444 | 1523 (kill-append (buffer-substring start end) (< end start)) |
| 1524 (kill-new (buffer-substring start end))) | |
| 428 | 1525 nil) |
| 1526 | |
| 444 | 1527 (defun kill-ring-save (start end) |
| 428 | 1528 "Save the region as if killed, but don't kill it. |
| 1529 This command is similar to `copy-region-as-kill', except that it gives | |
| 1530 visual feedback indicating the extent of the region being copied." | |
| 1531 (interactive "r") | |
| 444 | 1532 (copy-region-as-kill start end) |
| 428 | 1533 ;; copy before delay, for xclipboard's benefit |
| 1534 (if (interactive-p) | |
| 444 | 1535 (let ((other-end (if (= (point) start) end start)) |
| 428 | 1536 (opoint (point)) |
| 1537 ;; Inhibit quitting so we can make a quit here | |
| 1538 ;; look like a C-g typed as a command. | |
| 1539 (inhibit-quit t)) | |
| 1540 (if (pos-visible-in-window-p other-end (selected-window)) | |
| 1541 (progn | |
| 1542 ;; FSF (I'm not sure what this does -sb) | |
| 1543 ; ;; Swap point and mark. | |
| 1544 ; (set-marker (mark-marker) (point) (current-buffer)) | |
| 1545 (goto-char other-end) | |
| 1546 (sit-for 1) | |
| 1547 ; ;; Swap back. | |
| 1548 ; (set-marker (mark-marker) other-end (current-buffer)) | |
| 1549 (goto-char opoint) | |
| 1550 ;; If user quit, deactivate the mark | |
| 1551 ;; as C-g would as a command. | |
| 1552 (and quit-flag (mark) | |
| 1553 (zmacs-deactivate-region))) | |
| 1554 ;; too noisy. -- jwz | |
| 1555 ; (let* ((killed-text (current-kill 0)) | |
| 1556 ; (message-len (min (length killed-text) 40))) | |
| 444 | 1557 ; (if (= (point) start) |
| 428 | 1558 ; ;; Don't say "killed"; that is misleading. |
| 1559 ; (message "Saved text until \"%s\"" | |
| 1560 ; (substring killed-text (- message-len))) | |
| 1561 ; (message "Saved text from \"%s\"" | |
| 1562 ; (substring killed-text 0 message-len)))) | |
| 1563 )))) | |
| 1564 | |
| 1565 (defun append-next-kill () | |
| 1566 "Cause following command, if it kills, to append to previous kill." | |
| 1567 ;; XEmacs | |
| 1568 (interactive "_") | |
| 1569 (if (interactive-p) | |
| 1570 (progn | |
| 1571 (setq this-command 'kill-region) | |
| 1572 (display-message 'command | |
| 1573 "If the next command is a kill, it will append")) | |
| 1574 (setq last-command 'kill-region))) | |
| 1575 | |
| 1576 (defun yank-pop (arg) | |
| 1577 "Replace just-yanked stretch of killed text with a different stretch. | |
| 1578 This command is allowed only immediately after a `yank' or a `yank-pop'. | |
| 1579 At such a time, the region contains a stretch of reinserted | |
| 1580 previously-killed text. `yank-pop' deletes that text and inserts in its | |
| 1581 place a different stretch of killed text. | |
| 1582 | |
| 1583 With no argument, the previous kill is inserted. | |
| 1584 With argument N, insert the Nth previous kill. | |
| 1585 If N is negative, this is a more recent kill. | |
| 1586 | |
| 1587 The sequence of kills wraps around, so that after the oldest one | |
| 1588 comes the newest one." | |
| 1589 (interactive "*p") | |
| 1590 (if (not (eq last-command 'yank)) | |
| 1591 (error "Previous command was not a yank")) | |
| 1592 (setq this-command 'yank) | |
| 1593 (let ((inhibit-read-only t) | |
| 1594 (before (< (point) (mark t)))) | |
| 1595 (delete-region (point) (mark t)) | |
| 1596 ;;(set-marker (mark-marker) (point) (current-buffer)) | |
| 1597 (set-mark (point)) | |
| 1598 (insert (current-kill arg)) | |
| 1599 (if before | |
| 1600 ;; This is like exchange-point-and-mark, but doesn't activate the mark. | |
| 1601 ;; It is cleaner to avoid activation, even though the command | |
| 1602 ;; loop would deactivate the mark because we inserted text. | |
| 1603 (goto-char (prog1 (mark t) | |
| 1604 (set-marker (mark-marker t) (point) (current-buffer)))))) | |
| 1605 nil) | |
| 1606 | |
| 1607 | |
| 1608 (defun yank (&optional arg) | |
| 1609 "Reinsert the last stretch of killed text. | |
| 1610 More precisely, reinsert the stretch of killed text most recently | |
| 1611 killed OR yanked. Put point at end, and set mark at beginning. | |
| 1612 With just C-u as argument, same but put point at beginning (and mark at end). | |
| 1613 With argument N, reinsert the Nth most recently killed stretch of killed | |
| 1614 text. | |
| 1615 See also the command \\[yank-pop]." | |
| 1616 (interactive "*P") | |
| 1617 ;; If we don't get all the way through, make last-command indicate that | |
| 1618 ;; for the following command. | |
| 1619 (setq this-command t) | |
| 1620 (push-mark (point)) | |
| 1621 (insert (current-kill (cond | |
| 1622 ((listp arg) 0) | |
| 1623 ((eq arg '-) -1) | |
| 1624 (t (1- arg))))) | |
| 1625 (if (consp arg) | |
| 1626 ;; This is like exchange-point-and-mark, but doesn't activate the mark. | |
| 1627 ;; It is cleaner to avoid activation, even though the command | |
| 1628 ;; loop would deactivate the mark because we inserted text. | |
| 1629 ;; (But it's an unnecessary kludge in XEmacs.) | |
| 1630 ;(goto-char (prog1 (mark t) | |
| 1631 ;(set-marker (mark-marker) (point) (current-buffer))))) | |
| 1632 (exchange-point-and-mark t)) | |
| 1633 ;; If we do get all the way thru, make this-command indicate that. | |
| 1634 (setq this-command 'yank) | |
| 1635 nil) | |
| 1636 | |
| 1637 (defun rotate-yank-pointer (arg) | |
| 1638 "Rotate the yanking point in the kill ring. | |
| 1639 With argument, rotate that many kills forward (or backward, if negative)." | |
| 1640 (interactive "p") | |
| 1641 (current-kill arg)) | |
| 1642 | |
| 1643 | |
| 1644 (defun insert-buffer (buffer) | |
| 1645 "Insert after point the contents of BUFFER. | |
| 1646 Puts mark after the inserted text. | |
| 1647 BUFFER may be a buffer or a buffer name." | |
| 1648 (interactive | |
| 1649 (list | |
| 1650 (progn | |
| 1651 (barf-if-buffer-read-only) | |
| 1652 (read-buffer "Insert buffer: " | |
| 1653 ;; XEmacs: we have different args | |
| 1654 (other-buffer (current-buffer) nil t) | |
| 1655 t)))) | |
| 1656 (or (bufferp buffer) | |
| 1657 (setq buffer (get-buffer buffer))) | |
| 1658 (let (start end newmark) | |
| 1659 (save-excursion | |
| 1660 (save-excursion | |
| 1661 (set-buffer buffer) | |
| 1662 (setq start (point-min) end (point-max))) | |
| 1663 (insert-buffer-substring buffer start end) | |
| 1664 (setq newmark (point))) | |
| 1665 (push-mark newmark)) | |
| 1666 nil) | |
| 1667 | |
| 1668 (defun append-to-buffer (buffer start end) | |
| 1669 "Append to specified buffer the text of the region. | |
| 1670 It is inserted into that buffer before its point. | |
| 1671 | |
| 1672 When calling from a program, give three arguments: | |
| 1673 BUFFER (or buffer name), START and END. | |
| 1674 START and END specify the portion of the current buffer to be copied." | |
| 1675 (interactive | |
| 1676 ;; XEmacs: we have different args to other-buffer | |
| 1677 (list (read-buffer "Append to buffer: " (other-buffer (current-buffer) | |
| 1678 nil t)) | |
| 1679 (region-beginning) (region-end))) | |
| 1680 (let ((oldbuf (current-buffer))) | |
| 1681 (save-excursion | |
| 1682 (set-buffer (get-buffer-create buffer)) | |
| 1683 (insert-buffer-substring oldbuf start end)))) | |
| 1684 | |
| 1685 (defun prepend-to-buffer (buffer start end) | |
| 1686 "Prepend to specified buffer the text of the region. | |
| 1687 It is inserted into that buffer after its point. | |
| 1688 | |
| 1689 When calling from a program, give three arguments: | |
| 1690 BUFFER (or buffer name), START and END. | |
| 1691 START and END specify the portion of the current buffer to be copied." | |
| 1692 (interactive "BPrepend to buffer: \nr") | |
| 1693 (let ((oldbuf (current-buffer))) | |
| 1694 (save-excursion | |
| 1695 (set-buffer (get-buffer-create buffer)) | |
| 1696 (save-excursion | |
| 1697 (insert-buffer-substring oldbuf start end))))) | |
| 1698 | |
| 1699 (defun copy-to-buffer (buffer start end) | |
| 1700 "Copy to specified buffer the text of the region. | |
| 1701 It is inserted into that buffer, replacing existing text there. | |
| 1702 | |
| 1703 When calling from a program, give three arguments: | |
| 1704 BUFFER (or buffer name), START and END. | |
| 1705 START and END specify the portion of the current buffer to be copied." | |
| 1706 (interactive "BCopy to buffer: \nr") | |
| 1707 (let ((oldbuf (current-buffer))) | |
| 1708 (save-excursion | |
| 1709 (set-buffer (get-buffer-create buffer)) | |
| 1710 (erase-buffer) | |
| 1711 (save-excursion | |
| 1712 (insert-buffer-substring oldbuf start end))))) | |
| 1713 | |
| 1714 ;FSFmacs | |
| 1715 ;(put 'mark-inactive 'error-conditions '(mark-inactive error)) | |
| 1716 ;(put 'mark-inactive 'error-message "The mark is not active now") | |
| 1717 | |
| 1718 (defun mark (&optional force buffer) | |
| 1719 "Return this buffer's mark value as integer, or nil if no mark. | |
| 1720 | |
| 1721 If `zmacs-regions' is true, then this returns nil unless the region is | |
| 1722 currently in the active (highlighted) state. With an argument of t, this | |
| 1723 returns the mark (if there is one) regardless of the active-region state. | |
| 1724 You should *generally* not use the mark unless the region is active, if | |
| 1725 the user has expressed a preference for the active-region model. | |
| 1726 | |
| 1727 If you are using this in an editing command, you are most likely making | |
| 1728 a mistake; see the documentation of `set-mark'." | |
| 1729 (setq buffer (decode-buffer buffer)) | |
| 1730 ;FSFmacs version: | |
| 1731 ; (if (or force (not transient-mark-mode) mark-active mark-even-if-inactive) | |
| 1732 ; (marker-position (mark-marker)) | |
| 1733 ; (signal 'mark-inactive nil))) | |
| 1734 (let ((m (mark-marker force buffer))) | |
| 1735 (and m (marker-position m)))) | |
| 1736 | |
| 1737 ;;;#### FSFmacs | |
| 1738 ;;; Many places set mark-active directly, and several of them failed to also | |
| 1739 ;;; run deactivate-mark-hook. This shorthand should simplify. | |
| 1740 ;(defsubst deactivate-mark () | |
| 1741 ; "Deactivate the mark by setting `mark-active' to nil. | |
| 1742 ;\(That makes a difference only in Transient Mark mode.) | |
| 1743 ;Also runs the hook `deactivate-mark-hook'." | |
| 1744 ; (if transient-mark-mode | |
| 1745 ; (progn | |
| 1746 ; (setq mark-active nil) | |
| 1747 ; (run-hooks 'deactivate-mark-hook)))) | |
| 1748 | |
| 1749 (defun set-mark (pos &optional buffer) | |
| 1750 "Set this buffer's mark to POS. Don't use this function! | |
| 1751 That is to say, don't use this function unless you want | |
| 1752 the user to see that the mark has moved, and you want the previous | |
| 1753 mark position to be lost. | |
| 1754 | |
| 1755 Normally, when a new mark is set, the old one should go on the stack. | |
| 444 | 1756 This is why most applications should use `push-mark', not `set-mark'. |
| 428 | 1757 |
| 1758 Novice Emacs Lisp programmers often try to use the mark for the wrong | |
| 1759 purposes. The mark saves a location for the user's convenience. | |
| 1760 Most editing commands should not alter the mark. | |
| 1761 To remember a location for internal use in the Lisp program, | |
| 1762 store it in a Lisp variable. Example: | |
| 1763 | |
| 444 | 1764 (let ((start (point))) (forward-line 1) (delete-region start (point)))." |
| 428 | 1765 |
| 1766 (setq buffer (decode-buffer buffer)) | |
| 1767 (set-marker (mark-marker t buffer) pos buffer)) | |
| 1768 ;; FSF | |
| 1769 ; (if pos | |
| 1770 ; (progn | |
| 1771 ; (setq mark-active t) | |
| 1772 ; (run-hooks 'activate-mark-hook) | |
| 1773 ; (set-marker (mark-marker) pos (current-buffer))) | |
| 1774 ; ;; Normally we never clear mark-active except in Transient Mark mode. | |
| 1775 ; ;; But when we actually clear out the mark value too, | |
| 1776 ; ;; we must clear mark-active in any mode. | |
| 1777 ; (setq mark-active nil) | |
| 1778 ; (run-hooks 'deactivate-mark-hook) | |
| 1779 ; (set-marker (mark-marker) nil))) | |
| 1780 | |
| 1781 (defvar mark-ring nil | |
| 442 | 1782 "The list of former marks of the current buffer, most recent first. |
| 1783 This variable is automatically buffer-local.") | |
| 428 | 1784 (make-variable-buffer-local 'mark-ring) |
| 1785 (put 'mark-ring 'permanent-local t) | |
| 1786 | |
| 442 | 1787 (defvar dont-record-current-mark nil |
| 1788 "If set to t, the current mark value should not be recorded on the mark ring. | |
| 1789 This is set by commands that manipulate the mark incidentally, to avoid | |
| 1790 cluttering the mark ring unnecessarily. Under most circumstances, you do | |
| 1791 not need to set this directly; it is automatically reset each time | |
| 1792 `push-mark' is called, according to `mark-ring-unrecorded-commands'. This | |
| 1793 variable is automatically buffer-local.") | |
| 1794 (make-variable-buffer-local 'dont-record-current-mark) | |
| 1795 (put 'dont-record-current-mark 'permanent-local t) | |
| 1796 | |
| 1797 ;; a conspiracy between push-mark and handle-pre-motion-command | |
| 1798 (defvar in-shifted-motion-command nil) | |
| 1799 | |
| 1800 (defcustom mark-ring-unrecorded-commands '(shifted-motion-commands | |
| 1801 yank | |
| 1802 mark-beginning-of-buffer | |
| 1803 mark-bob | |
| 1804 mark-defun | |
| 1805 mark-end-of-buffer | |
| 1806 mark-end-of-line | |
| 1807 mark-end-of-sentence | |
| 1808 mark-eob | |
| 1809 mark-marker | |
| 1810 mark-page | |
| 1811 mark-paragraph | |
| 1812 mark-sexp | |
| 1813 mark-whole-buffer | |
| 1814 mark-word) | |
| 1815 "*List of commands whose marks should not be recorded on the mark stack. | |
| 1816 Many commands set the mark as part of their action. Normally, all such | |
| 1817 marks get recorded onto the mark stack. However, this tends to clutter up | |
| 1818 the mark stack unnecessarily. You can control this by putting a command | |
| 1819 onto this list. Then, any marks set by the function will not be recorded. | |
| 1820 | |
| 1821 The special value `shifted-motion-commands' causes marks set as a result | |
| 1822 of selection using any shifted motion commands to not be recorded. | |
| 1823 | |
| 1824 The value `yank' affects all yank-like commands, as well as just `yank'." | |
| 1825 :type '(repeat (choice (const :tag "shifted motion commands" | |
| 462 | 1826 shifted-motion-commands) |
| 442 | 1827 (const :tag "functions that select text" |
| 1828 :inline t | |
| 462 | 1829 (mark-beginning-of-buffer |
| 1830 mark-bob | |
| 1831 mark-defun | |
| 1832 mark-end-of-buffer | |
| 1833 mark-end-of-line | |
| 1834 mark-end-of-sentence | |
| 1835 mark-eob | |
| 1836 mark-marker | |
| 1837 mark-page | |
| 1838 mark-paragraph | |
| 1839 mark-sexp | |
| 1840 mark-whole-buffer | |
| 1841 mark-word)) | |
| 442 | 1842 (const :tag "functions that paste text" |
| 462 | 1843 yank) |
| 442 | 1844 function)) |
| 1845 :group 'killing) | |
| 1846 | |
| 428 | 1847 (defcustom mark-ring-max 16 |
| 1848 "*Maximum size of mark ring. Start discarding off end if gets this big." | |
| 1849 :type 'integer | |
| 1850 :group 'killing) | |
| 1851 | |
| 1852 (defvar global-mark-ring nil | |
| 1853 "The list of saved global marks, most recent first.") | |
| 1854 | |
| 1855 (defcustom global-mark-ring-max 16 | |
| 1856 "*Maximum size of global mark ring. \ | |
| 1857 Start discarding off end if gets this big." | |
| 1858 :type 'integer | |
| 1859 :group 'killing) | |
| 1860 | |
| 1861 (defun set-mark-command (arg) | |
| 1862 "Set mark at where point is, or jump to mark. | |
| 1863 With no prefix argument, set mark, push old mark position on local mark | |
| 1864 ring, and push mark on global mark ring. | |
| 1865 With argument, jump to mark, and pop a new position for mark off the ring | |
| 1866 \(does not affect global mark ring\). | |
| 1867 | |
| 442 | 1868 The mark ring is a per-buffer stack of marks, most recent first. Its |
| 1869 maximum length is controlled by `mark-ring-max'. Generally, when new | |
| 1870 marks are set, the current mark is pushed onto the stack. You can pop | |
| 1871 marks off the stack using \\[universal-argument] \\[set-mark-command]. The term \"ring\" is used because when | |
| 1872 you pop a mark off the stack, the current mark value is pushed onto the | |
| 1873 far end of the stack. If this is confusing, just think of the mark ring | |
| 1874 as a stack. | |
| 1875 | |
| 428 | 1876 Novice Emacs Lisp programmers often try to use the mark for the wrong |
| 1877 purposes. See the documentation of `set-mark' for more information." | |
| 1878 (interactive "P") | |
| 1879 (if (null arg) | |
| 1880 (push-mark nil nil t) | |
| 1881 (if (null (mark t)) | |
| 1882 (error "No mark set in this buffer") | |
| 442 | 1883 (if dont-record-current-mark (pop-mark)) |
| 428 | 1884 (goto-char (mark t)) |
| 1885 (pop-mark)))) | |
| 1886 | |
| 1887 ;; XEmacs: Extra parameter | |
| 1888 (defun push-mark (&optional location nomsg activate-region buffer) | |
| 1889 "Set mark at LOCATION (point, by default) and push old mark on mark ring. | |
| 1890 If the last global mark pushed was not in the current buffer, | |
| 1891 also push LOCATION on the global mark ring. | |
| 1892 Display `Mark set' unless the optional second arg NOMSG is non-nil. | |
| 1893 Activate mark if optional third arg ACTIVATE-REGION non-nil. | |
| 1894 | |
| 1895 Novice Emacs Lisp programmers often try to use the mark for the wrong | |
| 1896 purposes. See the documentation of `set-mark' for more information." | |
| 1897 (setq buffer (decode-buffer buffer)) ; XEmacs | |
| 442 | 1898 (if (or dont-record-current-mark (null (mark t buffer))) ; XEmacs |
| 428 | 1899 nil |
| 1900 ;; The save-excursion / set-buffer is necessary because mark-ring | |
| 1901 ;; is a buffer local variable | |
| 1902 (save-excursion | |
| 1903 (set-buffer buffer) | |
| 1904 (setq mark-ring (cons (copy-marker (mark-marker t buffer)) mark-ring)) | |
| 1905 (if (> (length mark-ring) mark-ring-max) | |
| 1906 (progn | |
| 1907 (move-marker (car (nthcdr mark-ring-max mark-ring)) nil buffer) | |
| 1908 (setcdr (nthcdr (1- mark-ring-max) mark-ring) nil))))) | |
| 1909 (set-mark (or location (point buffer)) buffer) | |
| 1910 ; (set-marker (mark-marker) (or location (point)) (current-buffer)) ; FSF | |
| 1911 ;; Now push the mark on the global mark ring. | |
| 442 | 1912 (if (and (not dont-record-current-mark) |
| 1913 (or (null global-mark-ring) | |
| 1914 (not (eq (marker-buffer (car global-mark-ring)) buffer)))) | |
| 428 | 1915 ;; The last global mark pushed wasn't in this same buffer. |
| 1916 (progn | |
| 1917 (setq global-mark-ring (cons (copy-marker (mark-marker t buffer)) | |
| 1918 global-mark-ring)) | |
| 1919 (if (> (length global-mark-ring) global-mark-ring-max) | |
| 1920 (progn | |
| 1921 (move-marker (car (nthcdr global-mark-ring-max global-mark-ring)) | |
| 1922 nil buffer) | |
| 1923 (setcdr (nthcdr (1- global-mark-ring-max) global-mark-ring) nil))))) | |
| 442 | 1924 (setq dont-record-current-mark |
| 1925 (not (not (or (and in-shifted-motion-command | |
| 1926 (memq 'shifted-motion-commands | |
| 1927 mark-ring-unrecorded-commands)) | |
| 1928 (memq this-command mark-ring-unrecorded-commands))))) | |
| 1929 (or dont-record-current-mark nomsg executing-kbd-macro | |
| 1930 (> (minibuffer-depth) 0) | |
| 428 | 1931 (display-message 'command "Mark set")) |
| 1932 (if activate-region | |
| 1933 (progn | |
| 1934 (setq zmacs-region-stays t) | |
| 1935 (zmacs-activate-region))) | |
| 1936 ; (if (or activate (not transient-mark-mode)) ; FSF | |
| 1937 ; (set-mark (mark t))) ; FSF | |
| 1938 nil) | |
| 1939 | |
| 1940 (defun pop-mark () | |
| 1941 "Pop off mark ring into the buffer's actual mark. | |
| 1942 Does not set point. Does nothing if mark ring is empty." | |
| 1943 (if mark-ring | |
| 1944 (progn | |
| 1945 (setq mark-ring (nconc mark-ring (list (copy-marker (mark-marker t))))) | |
| 1946 (set-mark (car mark-ring)) | |
| 1947 (move-marker (car mark-ring) nil) | |
| 1948 (if (null (mark t)) (ding)) | |
| 1949 (setq mark-ring (cdr mark-ring))))) | |
| 1950 | |
| 1951 (define-function 'exchange-dot-and-mark 'exchange-point-and-mark) | |
| 1952 (defun exchange-point-and-mark (&optional dont-activate-region) | |
| 1953 "Put the mark where point is now, and point where the mark is now. | |
| 1954 The mark is activated unless DONT-ACTIVATE-REGION is non-nil." | |
| 1955 (interactive nil) | |
| 1956 (let ((omark (mark t))) | |
| 1957 (if (null omark) | |
| 1958 (error "No mark set in this buffer")) | |
| 1959 (set-mark (point)) | |
| 1960 (goto-char omark) | |
| 1961 (or dont-activate-region (zmacs-activate-region)) ; XEmacs | |
| 1962 nil)) | |
| 1963 | |
| 1964 ;; XEmacs | |
| 1965 (defun mark-something (mark-fn movement-fn arg) | |
| 1966 "internal function used by mark-sexp, mark-word, etc." | |
| 1967 (let (newmark (pushp t)) | |
| 1968 (save-excursion | |
| 1969 (if (and (eq last-command mark-fn) (mark)) | |
| 1970 ;; Extend the previous state in the same direction: | |
| 1971 (progn | |
| 1972 (if (< (mark) (point)) (setq arg (- arg))) | |
| 1973 (goto-char (mark)) | |
| 1974 (setq pushp nil))) | |
| 1975 (funcall movement-fn arg) | |
| 1976 (setq newmark (point))) | |
| 1977 (if pushp | |
| 1978 (push-mark newmark nil t) | |
| 1979 ;; Do not mess with the mark stack, but merely adjust the previous state: | |
| 1980 (set-mark newmark) | |
| 1981 (activate-region)))) | |
| 1982 | |
| 1983 ;(defun transient-mark-mode (arg) | |
| 1984 ; "Toggle Transient Mark mode. | |
| 1985 ;With arg, turn Transient Mark mode on if arg is positive, off otherwise. | |
| 1986 ; | |
| 1987 ;In Transient Mark mode, when the mark is active, the region is highlighted. | |
| 1988 ;Changing the buffer \"deactivates\" the mark. | |
| 1989 ;So do certain other operations that set the mark | |
| 1990 ;but whose main purpose is something else--for example, | |
| 1991 ;incremental search, \\[beginning-of-buffer], and \\[end-of-buffer]." | |
| 1992 ; (interactive "P") | |
| 1993 ; (setq transient-mark-mode | |
| 1994 ; (if (null arg) | |
| 1995 ; (not transient-mark-mode) | |
| 1996 ; (> (prefix-numeric-value arg) 0)))) | |
| 1997 | |
| 1998 (defun pop-global-mark () | |
| 1999 "Pop off global mark ring and jump to the top location." | |
| 2000 (interactive) | |
| 2001 ;; Pop entries which refer to non-existent buffers. | |
| 2002 (while (and global-mark-ring (not (marker-buffer (car global-mark-ring)))) | |
| 2003 (setq global-mark-ring (cdr global-mark-ring))) | |
| 2004 (or global-mark-ring | |
| 2005 (error "No global mark set")) | |
| 2006 (let* ((marker (car global-mark-ring)) | |
| 2007 (buffer (marker-buffer marker)) | |
| 2008 (position (marker-position marker))) | |
| 2009 (setq global-mark-ring (nconc (cdr global-mark-ring) | |
| 2010 (list (car global-mark-ring)))) | |
| 2011 (set-buffer buffer) | |
| 2012 (or (and (>= position (point-min)) | |
| 2013 (<= position (point-max))) | |
| 2014 (widen)) | |
| 2015 (goto-char position) | |
| 2016 (switch-to-buffer buffer))) | |
| 2017 | |
| 2018 | |
| 2019 (defcustom signal-error-on-buffer-boundary t | |
| 462 | 2020 "*If Non-nil, beep or signal an error when moving past buffer boundary. |
| 428 | 2021 The commands that honor this variable are |
| 2022 | |
| 2023 forward-char-command | |
| 2024 backward-char-command | |
| 2025 next-line | |
| 2026 previous-line | |
| 2027 scroll-up-command | |
| 2028 scroll-down-command" | |
| 2029 :type 'boolean | |
| 2030 :group 'editing-basics) | |
| 2031 | |
| 3361 | 2032 (defcustom next-line-add-newlines nil |
| 428 | 2033 "*If non-nil, `next-line' inserts newline when the point is at end of buffer. |
| 3361 | 2034 This behavior used to be the default, but is now considered an unnecessary and |
| 2035 unwanted side-effect." | |
| 428 | 2036 :type 'boolean |
| 2037 :group 'editing-basics) | |
| 2038 | |
| 442 | 2039 (defcustom shifted-motion-keys-select-region t |
| 2040 "*If non-nil, shifted motion keys select text, like in MS Windows. | |
| 462 | 2041 |
| 2042 More specifically, if a keystroke that matches one of the key | |
| 2043 specifications in `motion-keys-for-shifted-motion' is pressed along | |
| 2044 with the Shift key, and the command invoked moves the cursor and | |
| 2045 preserves the active region (see `zmacs-region-stays'), the | |
| 2046 intervening text will be added to the active region. | |
| 2047 | |
| 2048 When the region has been enabled or augmented as a result of a shifted | |
| 2049 motion key, an unshifted motion key will normally deselect the region. | |
| 2485 | 2050 However, if `unshifted-motion-keys-deselect-region' is nil, the region |
| 462 | 2051 will remain active, augmented by the characters moved over by this |
| 2052 motion key. | |
| 2053 | |
| 2054 This functionality is specifically interpreted in terms of keys, and | |
| 2055 *NOT* in terms of particular commands, because that produces the most | |
| 2056 intuitive behavior: `forward-char' will work with shifted motion | |
| 2057 when invoked by `right' but not `C-f', and user-written motion commands | |
| 2058 bound to motion keys will automatically work with shifted motion." | |
| 442 | 2059 :type 'boolean |
| 2060 :group 'editing-basics) | |
| 2061 | |
| 2062 (defcustom unshifted-motion-keys-deselect-region t | |
| 2063 "*If non-nil, unshifted motion keys deselect a shifted-motion region. | |
| 462 | 2064 This only occurs after a region has been selected or augmented using |
| 2065 shifted motion keys (not when using the traditional set-mark-then-move | |
| 2066 method), and has no effect if `shifted-motion-keys-select-region' is | |
| 2067 nil." | |
| 442 | 2068 :type 'boolean |
| 2069 :group 'editing-basics) | |
| 2070 | |
| 462 | 2071 (defcustom motion-keys-for-shifted-motion |
| 1261 | 2072 ;; meta-shift-home/end are NOT shifted motion commands. |
| 2073 '(left right up down (home) (control home) (meta control home) | |
| 2074 (end) (control end) (meta control end) prior next | |
| 2075 kp-left kp-right kp-up kp-down (kp-home) (control kp-home) | |
| 2076 (meta control kp-home) (kp-end) (control kp-end) (meta control kp-end) | |
| 2077 kp-prior kp-next) | |
| 462 | 2078 "*List of keys considered motion keys for the purpose of shifted selection. |
| 2079 When one of these keys is pressed along with the Shift key, and the | |
| 2080 command invoked moves the cursor and preserves the active region (see | |
| 2081 `zmacs-region-stays'), the intervening text will be added to the active | |
| 2082 region. See `shifted-motion-keys-select-region' for more details. | |
| 2083 | |
| 2084 Each entry should be a keysym or a list (MODIFIERS ... KEYSYM), | |
| 2085 i.e. zero or more modifiers followed by a keysym. When a keysym alone | |
| 2086 is given, a keystroke consisting of that keysym, with or without any | |
| 2087 modifiers, is considered a motion key. When the list form is given, | |
| 2088 only a keystroke with exactly those modifiers and no others (with the | |
| 2089 exception of the Shift key) is considered a motion key. | |
| 2090 | |
| 2091 NOTE: Currently, the keysym cannot be a non-alphabetic character key | |
| 2092 such as the `=/+' key. In any case, the shifted-motion paradigm does | |
| 2093 not make much sense with those keys. The keysym can, however, be an | |
| 2094 alphabetic key without problem, and you can specify the key using | |
| 2095 either a character or a symbol, uppercase or lowercase." | |
| 2096 :type '(repeat (choice (const :tag "normal cursor-pad (\"gray\") keys" | |
| 2097 :inline t | |
| 1261 | 2098 (left |
| 2099 right up down | |
| 2100 (home) (control home) (meta control home) | |
| 2101 (end) (control end) (meta control end) | |
| 2102 prior next)) | |
| 462 | 2103 (const :tag "keypad motion keys" |
| 2104 :inline t | |
| 1261 | 2105 (kp-left |
| 2106 kp-right kp-up kp-down | |
| 2107 (kp-home) (control kp-home) | |
| 2108 (meta control kp-home) | |
| 2109 (kp-end) (control kp-end) | |
| 2110 (meta control kp-end) | |
| 2111 kp-prior kp-next)) | |
| 462 | 2112 (const :tag "alphabetic motion keys" |
| 2113 :inline t | |
| 2114 ((control b) (control f) | |
| 2115 (control p) (control n) | |
| 2116 (control a) (control e) | |
| 2117 (control v) (meta v) | |
| 2118 (meta b) (meta f) | |
| 2119 (meta a) (meta e) | |
| 2120 (meta m) ; back-to-indentation | |
| 2121 (meta r) ; move-to-window-line | |
| 2122 (meta control b) (meta control f) | |
| 2123 (meta control p) (meta control n) | |
| 2124 (meta control a) (meta control e) | |
| 2125 (meta control d) ;; down-list | |
| 2126 (meta control u) ;; backward-up-list | |
| 2127 )) | |
| 2128 symbol)) | |
| 2129 :group 'editing-basics) | |
| 2130 | |
| 442 | 2131 (defun handle-pre-motion-command-current-command-is-motion () |
| 2132 (and (key-press-event-p last-input-event) | |
|
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2133 (labels |
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2134 ((keysyms-equal (a b) |
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2135 (when (and |
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2136 ;; As of now, none of the elements of |
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2137 ;; motion-keys-for-shifted-motion are non-symbols; |
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2138 ;; this redundant check saves a few hundred |
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2139 ;; funcalls on startup. |
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2140 (not (symbolp b)) |
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2141 (characterp b)) |
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2142 (setf (car char-list) b |
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2143 b (intern (concat char-list nil)))) |
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2144 (eq a b))) |
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2145 (declare (inline keysyms-equal) (special char-list)) |
|
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2146 (loop |
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2147 for keysym in motion-keys-for-shifted-motion |
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2148 with key = (event-key last-input-event) |
|
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2149 with mods = (delete* 'shift (event-modifiers last-input-event)) |
|
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2150 with char-list = '(?a) ;; Some random character; the list will be |
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2151 ;; modified in the constants vector over |
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2152 ;; time. |
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2153 initially (if (and (not (symbolp key)) (characterp key)) |
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2154 (setf (car char-list) key |
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2155 key (intern (concat char-list nil)))) |
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2156 thereis (if (listp keysym) |
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2157 (and (equal mods (butlast keysym)) |
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2158 (keysyms-equal |
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2159 key (car (last keysym)))) |
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2160 (keysyms-equal key keysym)))))) |
| 444 | 2161 |
| 442 | 2162 (defun handle-pre-motion-command () |
| 462 | 2163 (if (and |
| 442 | 2164 (handle-pre-motion-command-current-command-is-motion) |
| 2165 zmacs-regions | |
| 2166 shifted-motion-keys-select-region | |
| 2167 (not (region-active-p)) | |
| 462 | 2168 ;; Special-case alphabetic keysyms, because the `shift' |
| 2169 ;; modifier does not appear on them. (Unfortunately, we have no | |
| 2170 ;; way of determining Shift-key status on non-alphabetic ASCII | |
| 2171 ;; keysyms. However, in this case, using Shift will invoke a | |
| 2172 ;; separate command from the non-shifted version, so the | |
| 2173 ;; "shifted motion" paradigm makes no sense.) | |
| 2174 (or (memq 'shift (event-modifiers last-input-event)) | |
| 2175 (let ((key (event-key last-input-event))) | |
| 2176 (and (characterp key) | |
| 2177 (not (eq key (downcase key))))))) | |
| 442 | 2178 (let ((in-shifted-motion-command t)) |
| 2179 (push-mark nil nil t)))) | |
| 2180 | |
| 2181 (defun handle-post-motion-command () | |
| 2182 (if | |
| 2183 (and | |
| 2184 (handle-pre-motion-command-current-command-is-motion) | |
| 2185 zmacs-regions | |
| 2186 (region-active-p)) | |
| 462 | 2187 ;; Special-case alphabetic keysyms, because the `shift' |
| 2188 ;; modifier does not appear on them. See above. | |
| 2189 (cond ((or (memq 'shift (event-modifiers last-input-event)) | |
| 2190 (let ((key (event-key last-input-event))) | |
| 2191 (and (characterp key) | |
| 2192 (not (eq key (downcase key)))))) | |
| 442 | 2193 (if shifted-motion-keys-select-region |
| 2194 (putf this-command-properties 'shifted-motion-command t)) | |
| 2195 (setq zmacs-region-stays t)) | |
| 2196 ((and (getf last-command-properties 'shifted-motion-command) | |
| 2197 unshifted-motion-keys-deselect-region) | |
| 487 | 2198 (setq zmacs-region-stays nil))))) |
| 442 | 2199 |
| 428 | 2200 (defun forward-char-command (&optional arg buffer) |
| 2201 "Move point right ARG characters (left if ARG negative) in BUFFER. | |
| 2202 On attempt to pass end of buffer, stop and signal `end-of-buffer'. | |
| 2203 On attempt to pass beginning of buffer, stop and signal `beginning-of-buffer'. | |
| 2204 Error signaling is suppressed if `signal-error-on-buffer-boundary' | |
| 462 | 2205 is nil. If BUFFER is nil, the current buffer is assumed. |
| 2206 | |
| 2207 The characters that are moved over may be added to the current selection | |
| 2208 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2209 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2210 the documentation for this variable for more details." | |
| 428 | 2211 (interactive "_p") |
| 2212 (if signal-error-on-buffer-boundary | |
| 2213 (forward-char arg buffer) | |
| 2214 (condition-case nil | |
| 2215 (forward-char arg buffer) | |
| 2216 (beginning-of-buffer nil) | |
| 2217 (end-of-buffer nil)))) | |
| 2218 | |
| 2219 (defun backward-char-command (&optional arg buffer) | |
| 2220 "Move point left ARG characters (right if ARG negative) in BUFFER. | |
| 2221 On attempt to pass end of buffer, stop and signal `end-of-buffer'. | |
| 2222 On attempt to pass beginning of buffer, stop and signal `beginning-of-buffer'. | |
| 2223 Error signaling is suppressed if `signal-error-on-buffer-boundary' | |
| 462 | 2224 is nil. If BUFFER is nil, the current buffer is assumed. |
| 2225 | |
| 2226 The characters that are moved over may be added to the current selection | |
| 2227 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2228 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2229 the documentation for this variable for more details." | |
| 428 | 2230 (interactive "_p") |
| 2231 (if signal-error-on-buffer-boundary | |
| 2232 (backward-char arg buffer) | |
| 2233 (condition-case nil | |
| 2234 (backward-char arg buffer) | |
| 2235 (beginning-of-buffer nil) | |
| 2236 (end-of-buffer nil)))) | |
| 2237 | |
| 442 | 2238 (defun scroll-up-one () |
| 2239 "Scroll text of current window upward one line. | |
| 2240 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 2241 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 2242 signaled. | |
| 2243 | |
| 2244 If `signal-error-on-buffer-boundary' is nil, attempts to scroll past buffer | |
| 2245 boundaries do not cause an error to be signaled." | |
| 2246 (interactive "_") | |
| 2247 (scroll-up-command 1)) | |
| 2248 | |
| 428 | 2249 (defun scroll-up-command (&optional n) |
| 444 | 2250 "Scroll current window upward N lines; or near full screen if N is nil. |
| 428 | 2251 A near full screen is `next-screen-context-lines' less than a full screen. |
| 444 | 2252 Negative N means scroll downward. |
| 428 | 2253 When calling from a program, supply a number as argument or nil. |
| 2254 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 2255 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 2256 signaled. | |
| 2257 | |
| 462 | 2258 The characters that are moved over may be added to the current selection |
| 2259 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2260 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2261 the documentation for this variable for more details. | |
| 2262 | |
| 428 | 2263 If `signal-error-on-buffer-boundary' is nil, attempts to scroll past buffer |
| 2264 boundaries do not cause an error to be signaled." | |
| 2265 (interactive "_P") | |
| 2266 (if signal-error-on-buffer-boundary | |
| 2267 (scroll-up n) | |
| 2268 (condition-case nil | |
| 2269 (scroll-up n) | |
| 2270 (beginning-of-buffer nil) | |
| 2271 (end-of-buffer nil)))) | |
| 2272 | |
| 442 | 2273 (defun scroll-down-one () |
| 2274 "Scroll text of current window downward one line. | |
| 2275 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 2276 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 2277 signaled. | |
| 2278 | |
| 2279 If `signal-error-on-buffer-boundary' is nil, attempts to scroll past buffer | |
| 2280 boundaries do not cause an error to be signaled." | |
| 2281 (interactive "_") | |
| 2282 (scroll-down-command 1)) | |
| 2283 | |
| 428 | 2284 (defun scroll-down-command (&optional n) |
| 444 | 2285 "Scroll current window downward N lines; or near full screen if N is nil. |
| 428 | 2286 A near full screen is `next-screen-context-lines' less than a full screen. |
| 444 | 2287 Negative N means scroll upward. |
| 428 | 2288 When calling from a program, supply a number as argument or nil. |
| 2289 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 2290 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 2291 signaled. | |
| 2292 | |
| 2293 If `signal-error-on-buffer-boundary' is nil, attempts to scroll past buffer | |
| 462 | 2294 boundaries do not cause an error to be signaled. |
| 2295 | |
| 2296 The characters that are moved over may be added to the current selection | |
| 2297 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2298 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2299 the documentation for this variable for more details." | |
| 428 | 2300 (interactive "_P") |
| 2301 (if signal-error-on-buffer-boundary | |
| 2302 (scroll-down n) | |
| 2303 (condition-case nil | |
| 2304 (scroll-down n) | |
| 2305 (beginning-of-buffer nil) | |
| 2306 (end-of-buffer nil)))) | |
| 2307 | |
| 444 | 2308 (defun next-line (count) |
| 2309 "Move cursor vertically down COUNT lines. | |
| 428 | 2310 If there is no character in the target line exactly under the current column, |
| 2311 the cursor is positioned after the character in that line which spans this | |
| 2312 column, or at the end of the line if it is not long enough. | |
| 2313 | |
| 2314 If there is no line in the buffer after this one, behavior depends on the | |
| 2315 value of `next-line-add-newlines'. If non-nil, it inserts a newline character | |
| 2316 to create a line, and moves the cursor to that line. Otherwise it moves the | |
| 2439 | 2317 cursor to the end of the buffer. If `signal-error-on-buffer-boundary' is |
| 2318 non-nil and you attempt to move past a buffer boundary, XEmacs will ring the | |
| 2319 bell using `ding'. | |
| 428 | 2320 |
| 2321 The command \\[set-goal-column] can be used to create | |
| 2322 a semipermanent goal column to which this command always moves. | |
| 2323 Then it does not try to move vertically. This goal column is stored | |
| 2324 in `goal-column', which is nil when there is none. | |
| 2325 | |
| 462 | 2326 The characters that are moved over may be added to the current selection |
| 2327 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2328 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2329 the documentation for this variable for more details. | |
| 2330 | |
| 428 | 2331 If you are thinking of using this in a Lisp program, consider |
| 2332 using `forward-line' instead. It is usually easier to use | |
| 2333 and more reliable (no dependence on goal column, etc.)." | |
| 442 | 2334 (interactive "_p") |
| 444 | 2335 (if (and next-line-add-newlines (= count 1)) |
| 428 | 2336 (let ((opoint (point))) |
| 2337 (end-of-line) | |
| 2338 (if (eobp) | |
| 2339 (newline 1) | |
| 2340 (goto-char opoint) | |
| 444 | 2341 (line-move count))) |
| 428 | 2342 (if (interactive-p) |
| 2343 ;; XEmacs: Not sure what to do about this. It's inconsistent. -sb | |
| 2344 (condition-case nil | |
| 444 | 2345 (line-move count) |
| 428 | 2346 ((beginning-of-buffer end-of-buffer) |
| 2347 (when signal-error-on-buffer-boundary | |
| 2348 (ding nil 'buffer-bound)))) | |
| 444 | 2349 (line-move count))) |
| 428 | 2350 nil) |
| 2351 | |
| 444 | 2352 (defun previous-line (count) |
| 2353 "Move cursor vertically up COUNT lines. | |
| 428 | 2354 If there is no character in the target line exactly over the current column, |
| 2355 the cursor is positioned after the character in that line which spans this | |
| 2356 column, or at the end of the line if it is not long enough. | |
| 2357 | |
| 2358 The command \\[set-goal-column] can be used to create | |
| 2359 a semipermanent goal column to which this command always moves. | |
| 2360 Then it does not try to move vertically. | |
| 2361 | |
| 462 | 2362 The characters that are moved over may be added to the current selection |
| 2363 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2364 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2365 the documentation for this variable for more details. | |
| 2366 | |
| 2439 | 2367 If `signal-error-on-buffer-boundary' is non-nil and you attempt to move past |
| 2368 a buffer boundary, XEmacs will ring the bell using `ding'. | |
| 2369 | |
| 428 | 2370 If you are thinking of using this in a Lisp program, consider using |
| 2371 `forward-line' with a negative argument instead. It is usually easier | |
| 2372 to use and more reliable (no dependence on goal column, etc.)." | |
| 442 | 2373 (interactive "_p") |
| 428 | 2374 (if (interactive-p) |
| 2375 (condition-case nil | |
| 444 | 2376 (line-move (- count)) |
| 428 | 2377 ((beginning-of-buffer end-of-buffer) |
| 2378 (when signal-error-on-buffer-boundary ; XEmacs | |
| 2379 (ding nil 'buffer-bound)))) | |
| 444 | 2380 (line-move (- count))) |
| 428 | 2381 nil) |
| 2382 | |
| 442 | 2383 (defcustom block-movement-size 6 |
| 2384 "*Number of lines that \"block movement\" commands (\\[forward-block-of-lines], \\[backward-block-of-lines]) move by." | |
| 2385 :type 'integer | |
| 2386 :group 'editing-basics) | |
| 2387 | |
| 2388 (defun backward-block-of-lines () | |
| 2389 "Move backward by one \"block\" of lines. | |
| 2390 The number of lines that make up a block is controlled by | |
| 462 | 2391 `block-movement-size', which defaults to 6. |
| 2392 | |
| 2393 The characters that are moved over may be added to the current selection | |
| 2394 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2395 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2396 the documentation for this variable for more details." | |
| 442 | 2397 (interactive "_") |
| 2398 (forward-line (- block-movement-size))) | |
| 2399 | |
| 2400 (defun forward-block-of-lines () | |
| 2401 "Move forward by one \"block\" of lines. | |
| 2402 The number of lines that make up a block is controlled by | |
| 462 | 2403 `block-movement-size', which defaults to 6. |
| 2404 | |
| 2405 The characters that are moved over may be added to the current selection | |
| 2406 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2407 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2408 the documentation for this variable for more details." | |
| 442 | 2409 (interactive "_") |
| 2410 (forward-line block-movement-size)) | |
| 2411 | |
| 428 | 2412 (defcustom track-eol nil |
| 2413 "*Non-nil means vertical motion starting at end of line keeps to ends of lines. | |
| 2414 This means moving to the end of each line moved onto. | |
| 2415 The beginning of a blank line does not count as the end of a line." | |
| 2416 :type 'boolean | |
| 2417 :group 'editing-basics) | |
| 2418 | |
| 2419 (defcustom goal-column nil | |
| 2420 "*Semipermanent goal column for vertical motion, as set by \\[set-goal-column], or nil." | |
| 2421 :type '(choice integer (const :tag "None" nil)) | |
| 2422 :group 'editing-basics) | |
| 2423 (make-variable-buffer-local 'goal-column) | |
| 2424 | |
| 2425 (defvar temporary-goal-column 0 | |
| 2426 "Current goal column for vertical motion. | |
| 2427 It is the column where point was | |
| 2428 at the start of current run of vertical motion commands. | |
| 2429 When the `track-eol' feature is doing its job, the value is 9999.") | |
| 2430 (make-variable-buffer-local 'temporary-goal-column) | |
| 2431 | |
| 2432 ;XEmacs: not yet ported, so avoid compiler warnings | |
| 2433 (eval-when-compile | |
| 2434 (defvar inhibit-point-motion-hooks)) | |
| 2435 | |
| 2436 (defcustom line-move-ignore-invisible nil | |
| 2437 "*Non-nil means \\[next-line] and \\[previous-line] ignore invisible lines. | |
| 2438 Use with care, as it slows down movement significantly. Outline mode sets this." | |
| 2439 :type 'boolean | |
| 2440 :group 'editing-basics) | |
| 2441 | |
| 2442 ;; This is the guts of next-line and previous-line. | |
| 444 | 2443 ;; Count says how many lines to move. |
| 2444 (defun line-move (count) | |
| 428 | 2445 ;; Don't run any point-motion hooks, and disregard intangibility, |
| 2446 ;; for intermediate positions. | |
| 2447 (let ((inhibit-point-motion-hooks t) | |
| 2448 (opoint (point)) | |
| 2449 new) | |
| 2450 (unwind-protect | |
| 2451 (progn | |
| 2452 (if (not (or (eq last-command 'next-line) | |
| 2453 (eq last-command 'previous-line))) | |
| 2454 (setq temporary-goal-column | |
| 2455 (if (and track-eol (eolp) | |
| 444 | 2456 ;; Don't count start of empty line as end of line |
| 428 | 2457 ;; unless we just did explicit end-of-line. |
| 2458 (or (not (bolp)) (eq last-command 'end-of-line))) | |
| 2459 9999 | |
| 2460 (current-column)))) | |
| 2461 (if (and (not (integerp selective-display)) | |
| 2462 (not line-move-ignore-invisible)) | |
| 2463 ;; Use just newline characters. | |
| 444 | 2464 (or (if (> count 0) |
| 2465 (progn (if (> count 1) (forward-line (1- count))) | |
| 2466 ;; This way of moving forward COUNT lines | |
| 428 | 2467 ;; verifies that we have a newline after the last one. |
| 2468 ;; It doesn't get confused by intangible text. | |
| 2469 (end-of-line) | |
| 2470 (zerop (forward-line 1))) | |
| 444 | 2471 (and (zerop (forward-line count)) |
| 428 | 2472 (bolp))) |
| 444 | 2473 (signal (if (< count 0) |
| 428 | 2474 'beginning-of-buffer |
| 2475 'end-of-buffer) | |
| 2476 nil)) | |
| 444 | 2477 ;; Move by count lines, but ignore invisible ones. |
| 2478 (while (> count 0) | |
| 428 | 2479 (end-of-line) |
| 2480 (and (zerop (vertical-motion 1)) | |
| 2481 (signal 'end-of-buffer nil)) | |
| 2482 ;; If the following character is currently invisible, | |
| 2483 ;; skip all characters with that same `invisible' property value. | |
| 2484 (while (and (not (eobp)) | |
| 2485 (let ((prop | |
| 2486 (get-char-property (point) 'invisible))) | |
| 2487 (if (eq buffer-invisibility-spec t) | |
| 2488 prop | |
| 2489 (or (memq prop buffer-invisibility-spec) | |
| 2490 (assq prop buffer-invisibility-spec))))) | |
| 2491 (if (get-text-property (point) 'invisible) | |
| 2492 (goto-char (next-single-property-change (point) 'invisible)) | |
| 2493 (goto-char (next-extent-change (point))))) ; XEmacs | |
| 444 | 2494 (setq count (1- count))) |
| 2495 (while (< count 0) | |
| 428 | 2496 (beginning-of-line) |
| 2497 (and (zerop (vertical-motion -1)) | |
| 2498 (signal 'beginning-of-buffer nil)) | |
| 2499 (while (and (not (bobp)) | |
| 2500 (let ((prop | |
| 2501 (get-char-property (1- (point)) 'invisible))) | |
| 2502 (if (eq buffer-invisibility-spec t) | |
| 2503 prop | |
| 2504 (or (memq prop buffer-invisibility-spec) | |
| 2505 (assq prop buffer-invisibility-spec))))) | |
| 2506 (if (get-text-property (1- (point)) 'invisible) | |
| 2507 (goto-char (previous-single-property-change (point) 'invisible)) | |
| 2508 (goto-char (previous-extent-change (point))))) ; XEmacs | |
| 444 | 2509 (setq count (1+ count)))) |
| 428 | 2510 (move-to-column (or goal-column temporary-goal-column))) |
| 2511 ;; Remember where we moved to, go back home, | |
| 2512 ;; then do the motion over again | |
| 2513 ;; in just one step, with intangibility and point-motion hooks | |
| 2514 ;; enabled this time. | |
| 2515 (setq new (point)) | |
| 2516 (goto-char opoint) | |
| 2517 (setq inhibit-point-motion-hooks nil) | |
| 2518 (goto-char new))) | |
| 2519 nil) | |
| 2520 | |
| 2521 ;;; Many people have said they rarely use this feature, and often type | |
| 2522 ;;; it by accident. Maybe it shouldn't even be on a key. | |
| 2523 ;; It's not on a key, as of 20.2. So no need for this. | |
| 2524 ;(put 'set-goal-column 'disabled t) | |
| 2525 | |
| 444 | 2526 (defun set-goal-column (column) |
| 428 | 2527 "Set the current horizontal position as a goal for \\[next-line] and \\[previous-line]. |
| 2528 Those commands will move to this position in the line moved to | |
| 2529 rather than trying to keep the same horizontal position. | |
| 2530 With a non-nil argument, clears out the goal column | |
| 2531 so that \\[next-line] and \\[previous-line] resume vertical motion. | |
| 2532 The goal column is stored in the variable `goal-column'." | |
| 2533 (interactive "_P") ; XEmacs | |
| 444 | 2534 (if column |
| 428 | 2535 (progn |
| 2536 (setq goal-column nil) | |
| 2537 (display-message 'command "No goal column")) | |
| 2538 (setq goal-column (current-column)) | |
| 2539 (lmessage 'command | |
| 444 | 2540 "Goal column %d (use %s with a prefix arg to unset it)" |
| 428 | 2541 goal-column |
| 2542 (substitute-command-keys "\\[set-goal-column]"))) | |
| 2543 nil) | |
| 2544 | |
| 2545 ;; deleted FSFmacs terminal randomness hscroll-point-visible stuff. | |
| 2546 ;; hscroll-step | |
| 2547 ;; hscroll-point-visible | |
| 2548 ;; hscroll-window-column | |
| 2549 ;; right-arrow | |
| 2550 ;; left-arrow | |
| 2551 | |
| 2552 (defun scroll-other-window-down (lines) | |
| 2553 "Scroll the \"other window\" down. | |
| 2554 For more details, see the documentation for `scroll-other-window'." | |
| 2555 (interactive "P") | |
| 2556 (scroll-other-window | |
| 2557 ;; Just invert the argument's meaning. | |
| 2558 ;; We can do that without knowing which window it will be. | |
| 2559 (if (eq lines '-) nil | |
| 2560 (if (null lines) '- | |
| 2561 (- (prefix-numeric-value lines)))))) | |
| 2562 ;(define-key esc-map [?\C-\S-v] 'scroll-other-window-down) | |
| 2563 | |
| 2564 (defun beginning-of-buffer-other-window (arg) | |
| 2565 "Move point to the beginning of the buffer in the other window. | |
| 2566 Leave mark at previous position. | |
| 2567 With arg N, put point N/10 of the way from the true beginning." | |
| 2568 (interactive "P") | |
| 2569 (let ((orig-window (selected-window)) | |
| 2570 (window (other-window-for-scrolling))) | |
| 2571 ;; We use unwind-protect rather than save-window-excursion | |
| 2572 ;; because the latter would preserve the things we want to change. | |
| 2573 (unwind-protect | |
| 2574 (progn | |
| 2575 (select-window window) | |
| 2576 ;; Set point and mark in that window's buffer. | |
| 2577 (beginning-of-buffer arg) | |
| 2578 ;; Set point accordingly. | |
| 2579 (recenter '(t))) | |
| 2580 (select-window orig-window)))) | |
| 2581 | |
| 2582 (defun end-of-buffer-other-window (arg) | |
| 2583 "Move point to the end of the buffer in the other window. | |
| 2584 Leave mark at previous position. | |
| 2585 With arg N, put point N/10 of the way from the true end." | |
| 2586 (interactive "P") | |
| 2587 ;; See beginning-of-buffer-other-window for comments. | |
| 2588 (let ((orig-window (selected-window)) | |
| 2589 (window (other-window-for-scrolling))) | |
| 2590 (unwind-protect | |
| 2591 (progn | |
| 2592 (select-window window) | |
| 2593 (end-of-buffer arg) | |
| 2594 (recenter '(t))) | |
| 2595 (select-window orig-window)))) | |
| 2596 | |
| 2597 (defun transpose-chars (arg) | |
| 2598 "Interchange characters around point, moving forward one character. | |
| 2599 With prefix arg ARG, effect is to take character before point | |
| 2600 and drag it forward past ARG other characters (backward if ARG negative). | |
| 2601 If no argument and at end of line, the previous two chars are exchanged." | |
| 2602 (interactive "*P") | |
| 446 | 2603 (and (null arg) (eolp) (backward-char 1)) |
| 428 | 2604 (transpose-subr 'forward-char (prefix-numeric-value arg))) |
| 2605 | |
| 2606 ;;; A very old implementation of transpose-chars from the old days ... | |
| 2607 (defun transpose-preceding-chars (arg) | |
| 2608 "Interchange characters before point. | |
| 2609 With prefix arg ARG, effect is to take character before point | |
| 2610 and drag it forward past ARG other characters (backward if ARG negative). | |
| 2611 If no argument and not at start of line, the previous two chars are exchanged." | |
| 2612 (interactive "*P") | |
| 446 | 2613 (and (null arg) (not (bolp)) (backward-char 1)) |
| 428 | 2614 (transpose-subr 'forward-char (prefix-numeric-value arg))) |
| 2615 | |
| 2616 | |
| 2617 (defun transpose-words (arg) | |
| 2618 "Interchange words around point, leaving point at end of them. | |
| 2619 With prefix arg ARG, effect is to take word before or around point | |
| 2620 and drag it forward past ARG other words (backward if ARG negative). | |
| 2621 If ARG is zero, the words around or after point and around or after mark | |
| 2622 are interchanged." | |
| 2623 (interactive "*p") | |
| 2624 (transpose-subr 'forward-word arg)) | |
| 2625 | |
| 2626 (defun transpose-sexps (arg) | |
| 2627 "Like \\[transpose-words] but applies to sexps. | |
| 2628 Does not work on a sexp that point is in the middle of | |
| 2629 if it is a list or string." | |
| 2630 (interactive "*p") | |
| 2631 (transpose-subr 'forward-sexp arg)) | |
| 2632 | |
| 613 | 2633 (defun Simple-forward-line-creating-newline () |
| 2634 ;; Move forward over a line, | |
| 2635 ;; but create a newline if none exists yet. | |
| 2636 (end-of-line) | |
| 2637 (if (eobp) | |
| 2638 (newline) | |
| 2639 (forward-char 1))) | |
| 2640 | |
| 2641 (defun Simple-transpose-lines-mover (arg) | |
| 2642 (if (= arg 1) | |
| 2643 (Simple-forward-line-creating-newline) | |
| 2644 (forward-line arg))) | |
| 2645 | |
| 428 | 2646 (defun transpose-lines (arg) |
| 2647 "Exchange current line and previous line, leaving point after both. | |
| 2648 With argument ARG, takes previous line and moves it past ARG lines. | |
| 2649 With argument 0, interchanges line point is in with line mark is in." | |
| 2650 (interactive "*p") | |
| 613 | 2651 (transpose-subr 'Simple-transpose-lines-mover arg)) |
| 428 | 2652 |
| 442 | 2653 (defun transpose-line-up (arg) |
| 2654 "Move current line one line up, leaving point at beginning of that line. | |
| 613 | 2655 With argument ARG, move it ARG lines up. This can be run repeatedly |
| 2656 to move the current line up a number of lines. | |
| 2657 | |
| 2658 If the region is active, move the region up one line (or ARG lines, | |
| 2659 if specified). The region will not be selected afterwards, but this | |
| 2660 command can still be run repeatedly to move the region up a number | |
| 2661 of lines." | |
| 442 | 2662 (interactive "*p") |
| 613 | 2663 (transpose-line-down (- arg))) |
| 442 | 2664 |
| 2665 (defun transpose-line-down (arg) | |
| 2666 "Move current line one line down, leaving point at beginning of that line. | |
| 613 | 2667 With argument ARG, move it ARG lines down. This can be run repeatedly |
| 2668 to move the current line down a number of lines. | |
| 2669 | |
| 2670 If the region is active, move the region down one line (or ARG lines, | |
| 2671 if specified). The region will not be selected afterwards, but this | |
| 2672 command can still be run repeatedly to move the region down a number | |
| 2673 of lines." | |
| 442 | 2674 (interactive "*p") |
| 613 | 2675 (if (or (region-active-p) |
| 2676 (getf last-command-properties 'transpose-region-by-line-command)) | |
| 2677 (progn | |
| 2678 (transpose-subr 'Simple-transpose-lines-mover arg t) | |
| 2679 (putf this-command-properties 'transpose-region-by-line-command t)) | |
| 2680 (Simple-forward-line-creating-newline) | |
| 2681 (transpose-subr 'Simple-transpose-lines-mover arg) | |
| 2682 (forward-line -1))) | |
| 2683 | |
| 2684 (defun transpose-subr (mover arg &optional move-region) | |
| 428 | 2685 (let (start1 end1 start2 end2) |
|
5567
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|
2686 ;; XEmacs -- use labels instead of defining a separate function and |
| 613 | 2687 ;; relying on dynamic scope; use (mark t) etc; add code to support |
| 2688 ;; the new MOVE-REGION arg. | |
|
5567
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|
2689 (labels ((transpose-subr-1 () |
|
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|
2690 (if (> (min end1 end2) (max start1 start2)) |
|
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|
2691 (error "Don't have two things to transpose")) |
|
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|
2692 (let ((word1 (buffer-substring start1 end1)) |
|
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parents:
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diff
changeset
|
2693 (word2 (buffer-substring start2 end2))) |
|
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Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
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|
2694 (delete-region start2 end2) |
|
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Aidan Kehoe <kehoea@parhasard.net>
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|
2695 (goto-char start2) |
|
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|
2696 (insert word1) |
|
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|
2697 (goto-char (if (< start1 start2) start1 |
|
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Aidan Kehoe <kehoea@parhasard.net>
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|
2698 (+ start1 (- (length word1) (length word2))))) |
|
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Aidan Kehoe <kehoea@parhasard.net>
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|
2699 (delete-char (length word1)) |
|
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|
2700 (insert word2)))) |
| 442 | 2701 (if (= arg 0) |
| 2702 (progn | |
| 2703 (save-excursion | |
| 2704 (funcall mover 1) | |
| 2705 (setq end2 (point)) | |
| 2706 (funcall mover -1) | |
| 2707 (setq start2 (point)) | |
| 613 | 2708 (goto-char (mark t)) |
| 442 | 2709 (funcall mover 1) |
| 2710 (setq end1 (point)) | |
| 2711 (funcall mover -1) | |
| 2712 (setq start1 (point)) | |
| 2713 (transpose-subr-1)) | |
| 613 | 2714 (exchange-point-and-mark t))) |
| 2715 (if move-region | |
| 2716 (let ((rbeg (region-beginning)) | |
| 2717 (rend (region-end))) | |
| 2718 (while (> arg 0) | |
| 2719 (goto-char rend) | |
| 2720 (funcall mover 1) | |
| 2721 (setq end2 (point)) | |
| 2722 (funcall mover -1) | |
| 2723 (setq start2 (point)) | |
| 2724 (setq start1 rbeg end1 rend) | |
| 2725 (transpose-subr-1) | |
| 2726 (incf rbeg (- end2 start2)) | |
| 2727 (incf rend (- end2 start2)) | |
| 2728 (setq arg (1- arg))) | |
| 2729 (while (< arg 0) | |
| 2730 (goto-char rbeg) | |
| 2731 (funcall mover -1) | |
| 2732 (setq start1 (point)) | |
| 2733 (funcall mover 1) | |
| 2734 (setq end1 (point)) | |
| 2735 (setq start2 rbeg end2 rend) | |
| 2736 (transpose-subr-1) | |
| 2737 (decf rbeg (- end1 start1)) | |
| 2738 (decf rend (- end1 start1)) | |
| 2739 (setq arg (1+ arg))) | |
| 2740 (set-mark rbeg) | |
| 2741 (goto-char rend)) | |
| 2742 (while (> arg 0) | |
| 2743 (funcall mover -1) | |
| 2744 (setq start1 (point)) | |
| 2745 (funcall mover 1) | |
| 2746 (setq end1 (point)) | |
| 2747 (funcall mover 1) | |
| 2748 (setq end2 (point)) | |
| 2749 (funcall mover -1) | |
| 2750 (setq start2 (point)) | |
| 2751 (transpose-subr-1) | |
| 2752 (goto-char end2) | |
| 2753 (setq arg (1- arg))) | |
| 2754 (while (< arg 0) | |
| 2755 (funcall mover -1) | |
| 2756 (setq start2 (point)) | |
| 2757 (funcall mover -1) | |
| 2758 (setq start1 (point)) | |
| 2759 (funcall mover 1) | |
| 2760 (setq end1 (point)) | |
| 2761 (funcall mover 1) | |
| 2762 (setq end2 (point)) | |
| 2763 (transpose-subr-1) | |
| 2764 (setq arg (1+ arg))))))) | |
| 442 | 2765 |
| 428 | 2766 |
| 2767 ;; XEmacs | |
| 2768 (defun prefix-region (prefix) | |
| 2769 "Add a prefix string to each line between mark and point." | |
| 2770 (interactive "sPrefix string: ") | |
| 2771 (if prefix | |
| 2772 (let ((count (count-lines (mark) (point)))) | |
| 2773 (goto-char (min (mark) (point))) | |
| 2774 (while (> count 0) | |
| 2775 (setq count (1- count)) | |
| 2776 (beginning-of-line 1) | |
| 2777 (insert prefix) | |
| 2778 (end-of-line 1) | |
| 2779 (forward-char 1))))) | |
| 2780 | |
| 2781 | |
| 446 | 2782 (defun backward-word (&optional count buffer) |
| 2783 "Move point backward COUNT words (forward if COUNT is negative). | |
| 2784 Normally t is returned, but if an edge of the buffer is reached, | |
| 2785 point is left there and nil is returned. | |
| 2786 | |
| 462 | 2787 COUNT defaults to 1, and BUFFER defaults to the current buffer. |
| 2788 | |
| 2789 The characters that are moved over may be added to the current selection | |
| 2790 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2791 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2792 the documentation for this variable for more details." | |
| 446 | 2793 (interactive "_p") |
| 2794 (forward-word (- (or count 1)) buffer)) | |
| 2795 | |
| 2796 (defun mark-word (&optional count) | |
| 2797 "Mark the text from point until encountering the end of a word. | |
| 2798 With optional argument COUNT, mark COUNT words." | |
| 428 | 2799 (interactive "p") |
| 446 | 2800 (mark-something 'mark-word 'forward-word count)) |
| 2801 | |
| 844 | 2802 (defcustom kill-word-into-kill-ring t |
| 2803 "*Non-nil means `kill-word' saves word killed into kill ring. | |
| 2804 \(Normally, this also affects the clipboard.) | |
| 2805 Nil means word is just deleted, without being remembered. | |
| 2806 This also applies to `backward-kill-word' and `backward-or-forward-kill-word'." | |
| 2807 :type 'boolean | |
| 2808 :group 'editing-basics) | |
| 2809 | |
| 446 | 2810 (defun kill-word (&optional count) |
| 428 | 2811 "Kill characters forward until encountering the end of a word. |
| 446 | 2812 With optional argument COUNT, do this that many times." |
| 2813 (interactive "*p") | |
| 844 | 2814 (if kill-word-into-kill-ring |
| 2815 (kill-region (point) (save-excursion (forward-word count) (point))) | |
| 2816 (delete-region (point) (save-excursion (forward-word count) (point))))) | |
| 446 | 2817 |
| 2818 (defun backward-kill-word (&optional count) | |
| 2819 "Kill characters backward until encountering the end of a word. | |
| 428 | 2820 With argument, do this that many times." |
| 2821 (interactive "*p") | |
| 446 | 2822 (kill-word (- (or count 1)))) |
| 428 | 2823 |
| 2824 (defun current-word (&optional strict) | |
| 2825 "Return the word point is on (or a nearby word) as a string. | |
| 2826 If optional arg STRICT is non-nil, return nil unless point is within | |
| 2827 or adjacent to a word. | |
| 2828 If point is not between two word-constituent characters, but immediately | |
| 2829 follows one, move back first. | |
| 2830 Otherwise, if point precedes a word constituent, move forward first. | |
| 2831 Otherwise, move backwards until a word constituent is found and get that word; | |
| 2832 if you a newlines is reached first, move forward instead." | |
| 2833 (save-excursion | |
| 2834 (let ((oldpoint (point)) (start (point)) (end (point))) | |
| 2835 (skip-syntax-backward "w_") (setq start (point)) | |
| 2836 (goto-char oldpoint) | |
| 2837 (skip-syntax-forward "w_") (setq end (point)) | |
| 2838 (if (and (eq start oldpoint) (eq end oldpoint)) | |
| 2839 ;; Point is neither within nor adjacent to a word. | |
| 2840 (and (not strict) | |
| 2841 (progn | |
| 2842 ;; Look for preceding word in same line. | |
| 2843 (skip-syntax-backward "^w_" | |
| 2844 (save-excursion | |
| 2845 (beginning-of-line) (point))) | |
| 2846 (if (bolp) | |
| 2847 ;; No preceding word in same line. | |
| 2848 ;; Look for following word in same line. | |
| 2849 (progn | |
| 2850 (skip-syntax-forward "^w_" | |
| 2851 (save-excursion | |
| 2852 (end-of-line) (point))) | |
| 2853 (setq start (point)) | |
| 2854 (skip-syntax-forward "w_") | |
| 2855 (setq end (point))) | |
| 2856 (setq end (point)) | |
| 2857 (skip-syntax-backward "w_") | |
| 2858 (setq start (point))) | |
| 2859 (buffer-substring start end))) | |
| 2860 (buffer-substring start end))))) | |
| 2861 | |
| 2862 (defcustom fill-prefix nil | |
| 2863 "*String for filling to insert at front of new line, or nil for none. | |
| 2864 Setting this variable automatically makes it local to the current buffer." | |
| 2865 :type '(choice (const :tag "None" nil) | |
| 2866 string) | |
| 2867 :group 'fill) | |
| 2868 (make-variable-buffer-local 'fill-prefix) | |
| 2869 | |
| 2870 (defcustom auto-fill-inhibit-regexp nil | |
| 2871 "*Regexp to match lines which should not be auto-filled." | |
| 2872 :type '(choice (const :tag "None" nil) | |
| 2873 regexp) | |
| 2874 :group 'fill) | |
| 2875 | |
| 2876 (defvar comment-line-break-function 'indent-new-comment-line | |
| 2877 "*Mode-specific function which line breaks and continues a comment. | |
| 2878 | |
| 2879 This function is only called during auto-filling of a comment section. | |
| 2880 The function should take a single optional argument which is a flag | |
| 2881 indicating whether soft newlines should be inserted.") | |
| 2882 | |
| 2883 ;; This function is the auto-fill-function of a buffer | |
| 2884 ;; when Auto-Fill mode is enabled. | |
| 2885 ;; It returns t if it really did any work. | |
| 2886 ;; XEmacs: This function is totally different. | |
| 2887 (defun do-auto-fill () | |
| 2888 (let (give-up) | |
| 2889 (or (and auto-fill-inhibit-regexp | |
| 2890 (save-excursion (beginning-of-line) | |
| 2891 (looking-at auto-fill-inhibit-regexp))) | |
| 2892 (while (and (not give-up) (> (current-column) fill-column)) | |
| 2893 ;; Determine where to split the line. | |
| 2894 (let ((fill-prefix fill-prefix) | |
| 2895 (fill-point | |
| 2896 (let ((opoint (point)) | |
| 2897 bounce | |
| 502 | 2898 (re-break-point ;; Kinsoku processing |
| 2899 (if (featurep 'mule) | |
| 771 | 2900 (with-boundp 'word-across-newline |
| 2901 (concat "[ \t\n]\\|" word-across-newline | |
| 2902 ".\\|." word-across-newline)) | |
| 502 | 2903 "[ \t\n]")) |
| 428 | 2904 (first t)) |
| 2905 (save-excursion | |
| 2906 (move-to-column (1+ fill-column)) | |
| 2907 ;; Move back to a word boundary. | |
| 2908 (while (or first | |
| 2909 ;; If this is after period and a single space, | |
| 2910 ;; move back once more--we don't want to break | |
| 2911 ;; the line there and make it look like a | |
| 2912 ;; sentence end. | |
| 2913 (and (not (bobp)) | |
| 2914 (not bounce) | |
| 2915 sentence-end-double-space | |
| 446 | 2916 (save-excursion (backward-char 1) |
| 428 | 2917 (and (looking-at "\\. ") |
| 2918 (not (looking-at "\\. ")))))) | |
| 2919 (setq first nil) | |
| 502 | 2920 ;; XEmacs: change for Kinsoku processing |
| 428 | 2921 (fill-move-backward-to-break-point re-break-point) |
| 2922 ;; If we find nowhere on the line to break it, | |
| 2923 ;; break after one word. Set bounce to t | |
| 2924 ;; so we will not keep going in this while loop. | |
| 2925 (if (bolp) | |
| 2926 (progn | |
| 502 | 2927 ;; XEmacs: change for Kinsoku processing |
| 428 | 2928 (fill-move-forward-to-break-point re-break-point |
| 2929 opoint) | |
| 2930 (setq bounce t))) | |
| 2931 (skip-chars-backward " \t")) | |
| 2932 (if (and (featurep 'mule) | |
| 502 | 2933 (or bounce (bolp))) |
| 2934 (declare-fboundp (kinsoku-process))) | |
| 428 | 2935 ;; Let fill-point be set to the place where we end up. |
| 2936 (point))))) | |
| 2937 | |
| 2938 ;; I'm not sure why Stig made this change but it breaks | |
| 2939 ;; auto filling in at least C mode so I'm taking it back | |
| 2940 ;; out. --cet | |
| 2941 ;; XEmacs - adaptive fill. | |
| 2942 ;;(maybe-adapt-fill-prefix | |
| 2943 ;; (or from (setq from (save-excursion (beginning-of-line) | |
| 2944 ;; (point)))) | |
| 2945 ;; (or to (setq to (save-excursion (beginning-of-line 2) | |
| 2946 ;; (point)))) | |
| 2947 ;; t) | |
| 2948 | |
| 2949 ;; If that place is not the beginning of the line, | |
| 2950 ;; break the line there. | |
| 2951 (if (save-excursion | |
| 2952 (goto-char fill-point) | |
| 502 | 2953 ;; during kinsoku processing it is possible to move beyond |
| 2954 (not (or (bolp) (eolp)))) | |
| 428 | 2955 (let ((prev-column (current-column))) |
| 2956 ;; If point is at the fill-point, do not `save-excursion'. | |
| 2957 ;; Otherwise, if a comment prefix or fill-prefix is inserted, | |
| 2958 ;; point will end up before it rather than after it. | |
| 2959 (if (save-excursion | |
| 2960 (skip-chars-backward " \t") | |
| 2961 (= (point) fill-point)) | |
| 2962 ;; 1999-09-17 hniksic: turn off Kinsoku until | |
| 2963 ;; it's debugged. | |
| 444 | 2964 (funcall comment-line-break-function) |
| 502 | 2965 ;; XEmacs: Kinsoku processing |
| 428 | 2966 ; ;(indent-new-comment-line) |
| 2967 ; (let ((spacep (memq (char-before (point)) '(?\ ?\t)))) | |
| 2968 ; (funcall comment-line-break-function) | |
| 2969 ; ;; if user type space explicitly, leave SPC | |
| 2970 ; ;; even if there is no WAN. | |
| 2971 ; (if spacep | |
| 2972 ; (save-excursion | |
| 2973 ; (goto-char fill-point) | |
| 2974 ; ;; put SPC except that there is SPC | |
| 2975 ; ;; already or there is sentence end. | |
| 2976 ; (or (memq (char-after (point)) '(?\ ?\t)) | |
| 2977 ; (fill-end-of-sentence-p) | |
| 2978 ; (insert ?\ ))))) | |
| 2979 (save-excursion | |
| 2980 (goto-char fill-point) | |
| 2981 (funcall comment-line-break-function))) | |
| 2982 ;; If making the new line didn't reduce the hpos of | |
| 2983 ;; the end of the line, then give up now; | |
| 2984 ;; trying again will not help. | |
| 2985 (if (>= (current-column) prev-column) | |
| 2986 (setq give-up t))) | |
| 2987 ;; No place to break => stop trying. | |
| 2988 (setq give-up t))))))) | |
| 2989 | |
| 2990 ;; Put FSF one in until I can one or the other working properly, then the | |
| 2991 ;; other one is history. | |
| 2992 ;(defun fsf:do-auto-fill () | |
| 2993 ; (let (fc justify | |
| 2994 ; ;; bol | |
| 2995 ; give-up | |
| 2996 ; (fill-prefix fill-prefix)) | |
| 2997 ; (if (or (not (setq justify (current-justification))) | |
| 2998 ; (null (setq fc (current-fill-column))) | |
| 2999 ; (and (eq justify 'left) | |
| 3000 ; (<= (current-column) fc)) | |
| 3001 ; (save-excursion (beginning-of-line) | |
| 3002 ; ;; (setq bol (point)) | |
| 3003 ; (and auto-fill-inhibit-regexp | |
| 3004 ; (looking-at auto-fill-inhibit-regexp)))) | |
| 3005 ; nil ;; Auto-filling not required | |
| 3006 ; (if (memq justify '(full center right)) | |
| 3007 ; (save-excursion (unjustify-current-line))) | |
| 3008 | |
| 3009 ; ;; Choose a fill-prefix automatically. | |
| 3010 ; (if (and adaptive-fill-mode | |
| 3011 ; (or (null fill-prefix) (string= fill-prefix ""))) | |
| 3012 ; (let ((prefix | |
| 3013 ; (fill-context-prefix | |
| 3014 ; (save-excursion (backward-paragraph 1) (point)) | |
| 3015 ; (save-excursion (forward-paragraph 1) (point)) | |
| 3016 ; ;; Don't accept a non-whitespace fill prefix | |
| 3017 ; ;; from the first line of a paragraph. | |
| 3018 ; "^[ \t]*$"))) | |
| 3019 ; (and prefix (not (equal prefix "")) | |
| 3020 ; (setq fill-prefix prefix)))) | |
| 3021 | |
| 3022 ; (while (and (not give-up) (> (current-column) fc)) | |
| 3023 ; ;; Determine where to split the line. | |
| 3024 ; (let ((fill-point | |
| 3025 ; (let ((opoint (point)) | |
| 3026 ; bounce | |
| 3027 ; (first t)) | |
| 3028 ; (save-excursion | |
| 3029 ; (move-to-column (1+ fc)) | |
| 3030 ; ;; Move back to a word boundary. | |
| 3031 ; (while (or first | |
| 3032 ; ;; If this is after period and a single space, | |
| 3033 ; ;; move back once more--we don't want to break | |
| 3034 ; ;; the line there and make it look like a | |
| 3035 ; ;; sentence end. | |
| 3036 ; (and (not (bobp)) | |
| 3037 ; (not bounce) | |
| 3038 ; sentence-end-double-space | |
| 446 | 3039 ; (save-excursion (backward-char 1) |
| 428 | 3040 ; (and (looking-at "\\. ") |
| 3041 ; (not (looking-at "\\. ")))))) | |
| 3042 ; (setq first nil) | |
| 3043 ; (skip-chars-backward "^ \t\n") | |
| 3044 ; ;; If we find nowhere on the line to break it, | |
| 3045 ; ;; break after one word. Set bounce to t | |
| 3046 ; ;; so we will not keep going in this while loop. | |
| 3047 ; (if (bolp) | |
| 3048 ; (progn | |
| 3049 ; (re-search-forward "[ \t]" opoint t) | |
| 3050 ; (setq bounce t))) | |
| 3051 ; (skip-chars-backward " \t")) | |
| 3052 ; ;; Let fill-point be set to the place where we end up. | |
| 3053 ; (point))))) | |
| 3054 ; ;; If that place is not the beginning of the line, | |
| 3055 ; ;; break the line there. | |
| 3056 ; (if (save-excursion | |
| 3057 ; (goto-char fill-point) | |
| 3058 ; (not (bolp))) | |
| 3059 ; (let ((prev-column (current-column))) | |
| 3060 ; ;; If point is at the fill-point, do not `save-excursion'. | |
| 3061 ; ;; Otherwise, if a comment prefix or fill-prefix is inserted, | |
| 3062 ; ;; point will end up before it rather than after it. | |
| 3063 ; (if (save-excursion | |
| 3064 ; (skip-chars-backward " \t") | |
| 3065 ; (= (point) fill-point)) | |
| 3066 ; (funcall comment-line-break-function t) | |
| 3067 ; (save-excursion | |
| 3068 ; (goto-char fill-point) | |
| 3069 ; (funcall comment-line-break-function t))) | |
| 3070 ; ;; Now do justification, if required | |
| 3071 ; (if (not (eq justify 'left)) | |
| 3072 ; (save-excursion | |
| 3073 ; (end-of-line 0) | |
| 3074 ; (justify-current-line justify nil t))) | |
| 3075 ; ;; If making the new line didn't reduce the hpos of | |
| 3076 ; ;; the end of the line, then give up now; | |
| 3077 ; ;; trying again will not help. | |
| 3078 ; (if (>= (current-column) prev-column) | |
| 3079 ; (setq give-up t))) | |
| 3080 ; ;; No place to break => stop trying. | |
| 3081 ; (setq give-up t)))) | |
| 3082 ; ;; Justify last line. | |
| 3083 ; (justify-current-line justify t t) | |
| 3084 ; t))) | |
| 3085 | |
| 3086 (defvar normal-auto-fill-function 'do-auto-fill | |
| 3087 "The function to use for `auto-fill-function' if Auto Fill mode is turned on. | |
| 3088 Some major modes set this.") | |
| 3089 | |
| 3090 (defun auto-fill-mode (&optional arg) | |
| 3091 "Toggle auto-fill mode. | |
| 3092 With arg, turn auto-fill mode on if and only if arg is positive. | |
| 3093 In Auto-Fill mode, inserting a space at a column beyond `current-fill-column' | |
| 3094 automatically breaks the line at a previous space. | |
| 3095 | |
| 3096 The value of `normal-auto-fill-function' specifies the function to use | |
| 3097 for `auto-fill-function' when turning Auto Fill mode on." | |
| 3098 (interactive "P") | |
| 3099 (prog1 (setq auto-fill-function | |
| 3100 (if (if (null arg) | |
| 3101 (not auto-fill-function) | |
| 3102 (> (prefix-numeric-value arg) 0)) | |
| 3103 normal-auto-fill-function | |
| 3104 nil)) | |
| 3105 (redraw-modeline))) | |
| 3106 | |
| 3107 ;; This holds a document string used to document auto-fill-mode. | |
| 3108 (defun auto-fill-function () | |
| 3109 "Automatically break line at a previous space, in insertion of text." | |
| 3110 nil) | |
| 3111 | |
| 3112 (defun turn-on-auto-fill () | |
| 3113 "Unconditionally turn on Auto Fill mode." | |
| 444 | 3114 (interactive) |
| 428 | 3115 (auto-fill-mode 1)) |
| 3116 | |
|
4681
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Malcolm Purvis <malcolmp@xemacs.org>
parents:
4680
diff
changeset
|
3117 (defun turn-off-auto-fill () |
|
64ac4337298b
Implement turn-off-auto-fill.
Malcolm Purvis <malcolmp@xemacs.org>
parents:
4680
diff
changeset
|
3118 "Unconditionally turn off Auto Fill mode." |
|
64ac4337298b
Implement turn-off-auto-fill.
Malcolm Purvis <malcolmp@xemacs.org>
parents:
4680
diff
changeset
|
3119 (interactive) |
|
64ac4337298b
Implement turn-off-auto-fill.
Malcolm Purvis <malcolmp@xemacs.org>
parents:
4680
diff
changeset
|
3120 (auto-fill-mode -1)) |
|
64ac4337298b
Implement turn-off-auto-fill.
Malcolm Purvis <malcolmp@xemacs.org>
parents:
4680
diff
changeset
|
3121 |
| 428 | 3122 (defun set-fill-column (arg) |
| 3123 "Set `fill-column' to specified argument. | |
| 3124 Just \\[universal-argument] as argument means to use the current column | |
| 3125 The variable `fill-column' has a separate value for each buffer." | |
| 3126 (interactive "_P") ; XEmacs | |
| 3127 (cond ((integerp arg) | |
| 3128 (setq fill-column arg)) | |
| 3129 ((consp arg) | |
| 3130 (setq fill-column (current-column))) | |
| 3131 ;; Disallow missing argument; it's probably a typo for C-x C-f. | |
| 3132 (t | |
| 3133 (error "set-fill-column requires an explicit argument"))) | |
| 3134 (lmessage 'command "fill-column set to %d" fill-column)) | |
| 3135 | |
| 1333 | 3136 |
| 3137 ;; BEGIN SYNCHED WITH FSF 21.2. | |
| 3138 | |
| 428 | 3139 (defun set-selective-display (arg) |
| 3140 "Set `selective-display' to ARG; clear it if no arg. | |
| 3141 When the value of `selective-display' is a number > 0, | |
| 3142 lines whose indentation is >= that value are not displayed. | |
| 3143 The variable `selective-display' has a separate value for each buffer." | |
| 3144 (interactive "P") | |
| 3145 (if (eq selective-display t) | |
| 3146 (error "selective-display already in use for marked lines")) | |
| 3147 (let ((current-vpos | |
| 3148 (save-restriction | |
| 3149 (narrow-to-region (point-min) (point)) | |
| 3150 (goto-char (window-start)) | |
| 3151 (vertical-motion (window-height))))) | |
| 3152 (setq selective-display | |
| 3153 (and arg (prefix-numeric-value arg))) | |
| 3154 (recenter current-vpos)) | |
| 3155 (set-window-start (selected-window) (window-start (selected-window))) | |
| 3156 ;; #### doesn't localize properly: | |
| 3157 (princ "selective-display set to " t) | |
| 3158 (prin1 selective-display t) | |
| 3159 (princ "." t)) | |
| 3160 | |
| 3161 ;; XEmacs | |
| 3162 (defun nuke-selective-display () | |
| 3163 "Ensure that the buffer is not in selective-display mode. | |
| 3164 If `selective-display' is t, then restore the buffer text to its original | |
| 3165 state before disabling selective display." | |
| 3166 ;; by Stig@hackvan.com | |
| 3167 (interactive) | |
| 3168 (and (eq t selective-display) | |
| 3169 (save-excursion | |
| 3170 (save-restriction | |
| 3171 (widen) | |
| 3172 (goto-char (point-min)) | |
| 3173 (let ((mod-p (buffer-modified-p)) | |
| 3174 (buffer-read-only nil)) | |
| 3175 (while (search-forward "\r" nil t) | |
| 3176 (delete-char -1) | |
| 3177 (insert "\n")) | |
| 3178 (set-buffer-modified-p mod-p) | |
| 3179 )))) | |
| 3180 (setq selective-display nil)) | |
| 3181 | |
| 3182 (add-hook 'change-major-mode-hook 'nuke-selective-display) | |
| 3183 | |
| 1333 | 3184 (defvar overwrite-mode-textual " Ovwrt" |
| 428 | 3185 "The string displayed in the mode line when in overwrite mode.") |
| 1333 | 3186 (defvar overwrite-mode-binary " Bin Ovwrt" |
| 428 | 3187 "The string displayed in the mode line when in binary overwrite mode.") |
| 3188 | |
| 3189 (defun overwrite-mode (arg) | |
| 3190 "Toggle overwrite mode. | |
| 1333 | 3191 With arg, turn overwrite mode on iff arg is positive. |
| 428 | 3192 In overwrite mode, printing characters typed in replace existing text |
| 3193 on a one-for-one basis, rather than pushing it to the right. At the | |
| 3194 end of a line, such characters extend the line. Before a tab, | |
| 3195 such characters insert until the tab is filled in. | |
| 3196 \\[quoted-insert] still inserts characters in overwrite mode; this | |
| 3197 is supposed to make it easier to insert characters when necessary." | |
| 3198 (interactive "P") | |
| 3199 (setq overwrite-mode | |
| 3200 (if (if (null arg) (not overwrite-mode) | |
| 3201 (> (prefix-numeric-value arg) 0)) | |
| 3202 'overwrite-mode-textual)) | |
| 3203 (redraw-modeline)) | |
| 3204 | |
| 3205 (defun binary-overwrite-mode (arg) | |
| 3206 "Toggle binary overwrite mode. | |
| 1333 | 3207 With arg, turn binary overwrite mode on iff arg is positive. |
| 428 | 3208 In binary overwrite mode, printing characters typed in replace |
| 3209 existing text. Newlines are not treated specially, so typing at the | |
| 3210 end of a line joins the line to the next, with the typed character | |
| 3211 between them. Typing before a tab character simply replaces the tab | |
| 3212 with the character typed. | |
| 3213 \\[quoted-insert] replaces the text at the cursor, just as ordinary | |
| 3214 typing characters do. | |
| 3215 | |
| 3216 Note that binary overwrite mode is not its own minor mode; it is a | |
| 3217 specialization of overwrite-mode, entered by setting the | |
| 3218 `overwrite-mode' variable to `overwrite-mode-binary'." | |
| 3219 (interactive "P") | |
| 3220 (setq overwrite-mode | |
| 3221 (if (if (null arg) | |
| 3222 (not (eq overwrite-mode 'overwrite-mode-binary)) | |
| 3223 (> (prefix-numeric-value arg) 0)) | |
| 3224 'overwrite-mode-binary)) | |
| 3225 (redraw-modeline)) | |
| 1333 | 3226 |
| 3227 ;; END SYNCHED WITH FSF 21.2. | |
| 3228 | |
| 428 | 3229 |
| 771 | 3230 (defcustom line-number-mode t |
| 428 | 3231 "*Non-nil means display line number in modeline." |
| 3232 :type 'boolean | |
| 3233 :group 'editing-basics) | |
| 3234 | |
| 3235 (defun line-number-mode (arg) | |
| 3236 "Toggle Line Number mode. | |
| 444 | 3237 With arg, enable Line Number mode if arg is positive, else disable. |
| 428 | 3238 When Line Number mode is enabled, the line number appears |
| 3239 in the mode line." | |
| 3240 (interactive "P") | |
| 3241 (setq line-number-mode | |
| 3242 (if (null arg) (not line-number-mode) | |
| 3243 (> (prefix-numeric-value arg) 0))) | |
| 3244 (redraw-modeline)) | |
| 3245 | |
| 771 | 3246 (defcustom column-number-mode t |
| 428 | 3247 "*Non-nil means display column number in mode line." |
| 3248 :type 'boolean | |
| 3249 :group 'editing-basics) | |
| 3250 | |
| 3251 (defun column-number-mode (arg) | |
| 3252 "Toggle Column Number mode. | |
| 444 | 3253 With arg, enable Column Number mode if arg is positive, else disable. |
| 428 | 3254 When Column Number mode is enabled, the column number appears |
| 3255 in the mode line." | |
| 3256 (interactive "P") | |
| 3257 (setq column-number-mode | |
| 3258 (if (null arg) (not column-number-mode) | |
| 3259 (> (prefix-numeric-value arg) 0))) | |
| 3260 (redraw-modeline)) | |
| 3261 | |
| 3262 | |
| 3263 (defcustom blink-matching-paren t | |
| 3264 "*Non-nil means show matching open-paren when close-paren is inserted." | |
| 3265 :type 'boolean | |
| 3266 :group 'paren-blinking) | |
| 3267 | |
| 3268 (defcustom blink-matching-paren-on-screen t | |
| 3269 "*Non-nil means show matching open-paren when it is on screen. | |
| 3270 nil means don't show it (but the open-paren can still be shown | |
| 3271 when it is off screen." | |
| 3272 :type 'boolean | |
| 3273 :group 'paren-blinking) | |
| 3274 | |
| 3275 (defcustom blink-matching-paren-distance 12000 | |
| 3276 "*If non-nil, is maximum distance to search for matching open-paren." | |
| 3277 :type '(choice integer (const nil)) | |
| 3278 :group 'paren-blinking) | |
| 3279 | |
| 3280 (defcustom blink-matching-delay 1 | |
| 3281 "*The number of seconds that `blink-matching-open' will delay at a match." | |
| 3282 :type 'number | |
| 3283 :group 'paren-blinking) | |
| 3284 | |
| 3285 (defcustom blink-matching-paren-dont-ignore-comments nil | |
| 3286 "*Non-nil means `blink-matching-paren' should not ignore comments." | |
| 3287 :type 'boolean | |
| 3288 :group 'paren-blinking) | |
| 3289 | |
| 3290 (defun blink-matching-open () | |
| 3291 "Move cursor momentarily to the beginning of the sexp before point." | |
| 3292 (interactive "_") ; XEmacs | |
| 3293 (and (> (point) (1+ (point-min))) | |
| 3294 blink-matching-paren | |
| 3295 ;; Verify an even number of quoting characters precede the close. | |
| 3296 (= 1 (logand 1 (- (point) | |
| 3297 (save-excursion | |
| 446 | 3298 (backward-char 1) |
| 428 | 3299 (skip-syntax-backward "/\\") |
| 3300 (point))))) | |
| 3301 (let* ((oldpos (point)) | |
| 3302 (blinkpos) | |
| 3303 (mismatch)) | |
| 3304 (save-excursion | |
| 3305 (save-restriction | |
| 3306 (if blink-matching-paren-distance | |
|
5773
94a6b8fbd56e
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5684
diff
changeset
|
3307 (narrow-to-region |
|
94a6b8fbd56e
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5684
diff
changeset
|
3308 (max (point-min) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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5684
diff
changeset
|
3309 (- (point) blink-matching-paren-distance)) |
|
94a6b8fbd56e
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Aidan Kehoe <kehoea@parhasard.net>
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5684
diff
changeset
|
3310 oldpos)) |
| 428 | 3311 (condition-case () |
| 3312 (let ((parse-sexp-ignore-comments | |
| 3313 (and parse-sexp-ignore-comments | |
| 3314 (not blink-matching-paren-dont-ignore-comments)))) | |
| 3315 (setq blinkpos (scan-sexps oldpos -1))) | |
| 3316 (error nil))) | |
| 3317 (and blinkpos | |
| 3318 (/= (char-syntax (char-after blinkpos)) | |
| 3319 ?\$) | |
| 3320 (setq mismatch | |
| 3321 (or (null (matching-paren (char-after blinkpos))) | |
| 3322 (/= (char-after (1- oldpos)) | |
| 3323 (matching-paren (char-after blinkpos)))))) | |
| 3324 (if mismatch (setq blinkpos nil)) | |
| 3325 (if blinkpos | |
|
5773
94a6b8fbd56e
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5684
diff
changeset
|
3326 (labels |
|
94a6b8fbd56e
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5684
diff
changeset
|
3327 ((buffer-substring-highlight-blinkpos (start end) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
parents:
5684
diff
changeset
|
3328 ;; Sometimes there are sufficiently many |
|
94a6b8fbd56e
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5684
diff
changeset
|
3329 ;; parentheses on a line that it's *very* |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
parents:
5684
diff
changeset
|
3330 ;; useful to see exactly which is the match. |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
parents:
5684
diff
changeset
|
3331 (let* ((string (buffer-substring start end)) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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parents:
5684
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changeset
|
3332 (extent (make-extent (- blinkpos start) |
|
94a6b8fbd56e
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|
3333 (1+ (- blinkpos start)) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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|
3334 string))) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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5684
diff
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|
3335 (set-extent-face extent 'isearch) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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diff
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|
3336 (set-extent-property extent 'duplicable t) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
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|
3337 string)) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
3338 (before-backquote-context () |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
parents:
5684
diff
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|
3339 ;; Just showing the backquote context is often not |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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|
3340 ;; informative enough, if you're writing vaguely |
|
94a6b8fbd56e
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diff
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|
3341 ;; complex macros. Move past it. |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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|
3342 (skip-chars-backward "`,@."))) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
3343 (declare (inline before-backquote-context)) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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parents:
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diff
changeset
|
3344 (goto-char blinkpos) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
parents:
5684
diff
changeset
|
3345 (if (pos-visible-in-window-p) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
parents:
5684
diff
changeset
|
3346 (and blink-matching-paren-on-screen |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
parents:
5684
diff
changeset
|
3347 (progn |
|
94a6b8fbd56e
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5684
diff
changeset
|
3348 (auto-show-make-point-visible) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
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|
3349 (sit-for blink-matching-delay))) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
3350 (goto-char blinkpos) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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parents:
5684
diff
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|
3351 (lmessage |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
parents:
5684
diff
changeset
|
3352 'command |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
3353 (concat |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
3354 "Matches " |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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|
3355 ;; Show what precedes the open in its line, if |
|
94a6b8fbd56e
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|
3356 ;; anything. |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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|
3357 (if (save-excursion |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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diff
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|
3358 (before-backquote-context) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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|
3359 (skip-chars-backward " \t") |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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|
3360 (not (bolp))) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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|
3361 (buffer-substring-highlight-blinkpos |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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|
3362 (progn (beginning-of-line) (point)) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
3363 (1+ blinkpos)) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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|
3364 ;; Show what follows the open in its line, if |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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|
3365 ;; anything. |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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|
3366 (if (save-excursion |
|
94a6b8fbd56e
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|
3367 (forward-char 1) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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|
3368 (skip-chars-forward " \t") |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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|
3369 (not (eolp))) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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|
3370 (buffer-substring-highlight-blinkpos |
|
94a6b8fbd56e
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|
3371 (progn (before-backquote-context) (point)) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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|
3372 (progn (end-of-line (point)))) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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|
3373 ;; Otherwise show the previous nonblank line, |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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|
3374 ;; if there is one. |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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changeset
|
3375 (if (save-excursion |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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|
3376 (skip-chars-backward "\n \t") |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
3377 (not (bobp))) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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|
3378 (concat |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
3379 (buffer-substring |
|
94a6b8fbd56e
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Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
3380 (progn (skip-chars-backward "\n \t") |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
3381 (beginning-of-line) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
3382 (point)) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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|
3383 (progn (end-of-line) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
3384 (skip-chars-backward " \t") |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
3385 (point))) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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|
3386 ;; Replace the newline and other whitespace |
|
94a6b8fbd56e
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|
3387 ;; with `...'. |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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changeset
|
3388 "..." |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
3389 (buffer-substring-highlight-blinkpos |
|
94a6b8fbd56e
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Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
3390 blinkpos (1+ blinkpos))) |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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diff
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|
3391 ;; There is nothing to show except the char |
|
94a6b8fbd56e
Use a face, show more context around open parenthesis, #'blink-matching-open
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|
3392 ;; itself. |
|
94a6b8fbd56e
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Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
3393 (buffer-substring-highlight-blinkpos |
|
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Use a face, show more context around open parenthesis, #'blink-matching-open
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
3394 blinkpos (1+ blinkpos))))))))) |
| 428 | 3395 (cond (mismatch |
| 3396 (display-message 'no-log "Mismatched parentheses")) | |
| 3397 ((not blink-matching-paren-distance) | |
| 3398 (display-message 'no-log "Unmatched parenthesis")))))))) | |
| 3399 | |
| 3400 ;Turned off because it makes dbx bomb out. | |
| 3401 (setq blink-paren-function 'blink-matching-open) | |
| 3402 | |
| 3403 | |
| 3404 ;; XEmacs: Some functions moved to cmdloop.el: | |
| 3405 ;; keyboard-quit | |
| 3406 ;; buffer-quit-function | |
| 3407 ;; keyboard-escape-quit | |
| 3408 | |
| 442 | 3409 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 3410 ;; mail composition code ;; | |
| 3411 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3412 | |
| 1333 | 3413 ;; BEGIN SYNCHED WITH FSF 21.2. |
| 3414 | |
| 2768 | 3415 (defcustom mail-user-agent 'xemacs-default-mail-user-agent |
| 428 | 3416 "*Your preference for a mail composition package. |
| 1333 | 3417 Various Emacs Lisp packages (e.g. Reporter) require you to compose an |
| 428 | 3418 outgoing email message. This variable lets you specify which |
| 3419 mail-sending package you prefer. | |
| 3420 | |
| 2768 | 3421 Valid values may include: |
| 3422 | |
| 3423 `vm-user-agent' -- use Kyle Jones' VM, as documented in the `(vm)' | |
| 3424 Info node. Compatible with `sendmail-user-agent' | |
| 3425 and can handle attachments and non-ASCII content, | |
| 3426 which the former can't. | |
| 3427 `sendmail-user-agent' -- use the default, bare-bones, Emacs Mail | |
| 3428 package. See Info node `(xemacs)Sending Mail'. | |
| 1333 | 3429 `mh-e-user-agent' -- use the Emacs interface to the MH mail system. |
| 3430 See Info node `(mh-e)'. | |
| 3431 `message-user-agent' -- use the Gnus Message package. | |
| 3432 See Info node `(message)'. | |
| 3433 `gnus-user-agent' -- like `message-user-agent', but with Gnus | |
| 3434 paraphernalia, particularly the Gcc: header for | |
| 3435 archiving. | |
| 428 | 3436 |
| 2768 | 3437 If you examine the value of this variable before setting it or composing a |
| 3438 mail, it will have another value, `xemacs-default-mail-user-agent'--this is to | |
| 3439 allow XEmacs to suggest that you use another email client instead of | |
| 3440 `sendmail-user-agent'. The latter, while part of the base XEmacs Lisp code, | |
| 3441 and very lightweight, doesn't support MIME, a considerable disadvantage | |
| 3442 today. | |
| 3443 | |
| 428 | 3444 Additional valid symbols may be available; check with the author of |
| 1333 | 3445 your package for details. The function should return non-nil if it |
| 3446 succeeds. | |
| 3447 | |
| 3448 See also `read-mail-command' concerning reading mail." | |
| 2768 | 3449 :type '(radio (function-item :tag "VM mail package" |
| 3450 :format "%t\n" | |
| 3451 vm-user-agent) | |
| 3452 (function-item :tag "Bare-bones Emacs mail" | |
| 428 | 3453 :format "%t\n" |
| 3454 sendmail-user-agent) | |
| 1333 | 3455 (function-item :tag "Emacs interface to MH" |
| 3456 :format "%t\n" | |
| 3457 mh-e-user-agent) | |
| 3458 (function-item :tag "Gnus Message package" | |
| 428 | 3459 :format "%t\n" |
| 3460 message-user-agent) | |
| 1333 | 3461 (function-item :tag "Gnus Message with full Gnus features" |
| 3462 :format "%t\n" | |
| 3463 gnus-user-agent) | |
| 428 | 3464 (function :tag "Other")) |
| 3465 :group 'mail) | |
| 3466 | |
| 3467 (defun define-mail-user-agent (symbol composefunc sendfunc | |
| 3468 &optional abortfunc hookvar) | |
| 3469 "Define a symbol to identify a mail-sending package for `mail-user-agent'. | |
| 3470 | |
| 3471 SYMBOL can be any Lisp symbol. Its function definition and/or | |
| 3472 value as a variable do not matter for this usage; we use only certain | |
| 3473 properties on its property list, to encode the rest of the arguments. | |
| 3474 | |
| 3475 COMPOSEFUNC is program callable function that composes an outgoing | |
| 3476 mail message buffer. This function should set up the basics of the | |
| 3477 buffer without requiring user interaction. It should populate the | |
| 3478 standard mail headers, leaving the `to:' and `subject:' headers blank | |
| 3479 by default. | |
| 3480 | |
| 3481 COMPOSEFUNC should accept several optional arguments--the same | |
| 3482 arguments that `compose-mail' takes. See that function's documentation. | |
| 3483 | |
| 3484 SENDFUNC is the command a user would run to send the message. | |
| 3485 | |
| 3486 Optional ABORTFUNC is the command a user would run to abort the | |
| 3487 message. For mail packages that don't have a separate abort function, | |
| 3488 this can be `kill-buffer' (the equivalent of omitting this argument). | |
| 3489 | |
| 3490 Optional HOOKVAR is a hook variable that gets run before the message | |
| 3491 is actually sent. Callers that use the `mail-user-agent' may | |
| 3492 install a hook function temporarily on this hook variable. | |
| 3493 If HOOKVAR is nil, `mail-send-hook' is used. | |
| 3494 | |
| 3495 The properties used on SYMBOL are `composefunc', `sendfunc', | |
| 3496 `abortfunc', and `hookvar'." | |
| 3497 (put symbol 'composefunc composefunc) | |
| 3498 (put symbol 'sendfunc sendfunc) | |
| 3499 (put symbol 'abortfunc (or abortfunc 'kill-buffer)) | |
| 3500 (put symbol 'hookvar (or hookvar 'mail-send-hook))) | |
| 3501 | |
| 2768 | 3502 (define-mail-user-agent 'vm-user-agent |
| 3503 'vm-compose-mail | |
| 3504 'vm-mail-send-and-exit) | |
| 3505 | |
| 428 | 3506 (define-mail-user-agent 'sendmail-user-agent |
| 3507 'sendmail-user-agent-compose 'mail-send-and-exit) | |
| 3508 | |
| 2768 | 3509 ;; Recent GNU sendmail.el does have MIME support, but it's buggy (as of |
| 3510 ;; 2005-05-01.) For example, if you FCC to a file more than once with | |
| 3511 ;; different coding systems, your non-ASCII data will get | |
| 3512 ;; trashed. quoted-printable encoding isn't done by default, attachments | |
| 3513 ;; just add a line: | |
| 3514 ;; | |
| 3515 ;; ===File /path/to/file/here================= | |
| 3516 ;; | |
| 3517 ;; the file's contents, | |
| 3518 ;; | |
| 3519 ;; =========================================== | |
| 3520 ;; | |
| 3521 ;; and hope for the best. Not code we want to use, IMO. | |
| 3522 | |
| 4293 | 3523 (defvar xemacs-default-composefunc-dont-nag nil |
| 3524 "Disable the `xemacs-default-composefunc' nagging; for bug reports.") | |
| 3525 | |
| 2768 | 3526 (defun xemacs-default-composefunc (&rest args) |
| 3527 "Warn that the default mail-reading package is heinously underfeatured; | |
| 3528 compose a mail using it, all the same. " | |
| 4293 | 3529 (unless (or noninteractive xemacs-default-composefunc-dont-nag) |
| 2977 | 3530 (warn " |
| 2768 | 3531 |
| 3532 Defaulting to the GNU Emacs-derived `sendmail.el' mail client. This facility, | |
| 3533 while part of base XEmacs, is heinously underfeatured, and not going to get | |
| 3534 better in the medium term. We include it so that bug reports work without | |
| 3535 packages; we suggest that you choose and/or install one of the other mail | |
| 3536 clients from packages if you're doing something other than M-x | |
| 3537 report-xemacs-bug , or even if you are reporting bugs regularly. | |
| 3538 | |
| 3539 To choose a package from those installed, click on \"Options\" -> | |
| 3540 \"Internet\" -> \"Compose Mail With ...\" and decide on one from the | |
| 3541 list. Gnus and VM are full-featured and have active user communities. | |
| 3542 | |
| 3543 To disable this warning and stick with the old behavior, you can explicitly | |
| 2977 | 3544 initialize `mail-user-agent' to 'sendmail-user-agent . ")) |
| 2768 | 3545 (setq mail-user-agent 'sendmail-user-agent) |
| 3546 (apply (get 'sendmail-user-agent 'composefunc) args)) | |
| 3547 | |
| 3548 (defun xemacs-default-sendfunc (&rest args) | |
| 3549 "Set `mail-user-agent' to `sendmail-user-agent'; call the send function | |
| 3550 associated with that package, passing it the supplied arguments. " | |
| 3551 (setq mail-user-agent 'sendmail-user-agent) | |
| 3552 (apply (get 'sendmail-user-agent 'sendfunc) args)) | |
| 3553 | |
| 3554 (define-mail-user-agent 'xemacs-default-mail-user-agent | |
| 3555 'xemacs-default-composefunc 'xemacs-default-sendfunc) | |
| 3556 | |
| 428 | 3557 (define-mail-user-agent 'message-user-agent |
| 3558 'message-mail 'message-send-and-exit | |
| 3559 'message-kill-buffer 'message-send-hook) | |
| 3560 | |
| 1333 | 3561 (defun rfc822-goto-eoh () |
| 3562 ;; Go to header delimiter line in a mail message, following RFC822 rules | |
| 3563 (goto-char (point-min)) | |
| 3564 (while (looking-at "^[^: \n]+:\\|^[ \t]") | |
| 3565 (forward-line 1)) | |
| 3566 (point)) | |
| 3567 | |
| 428 | 3568 (defun sendmail-user-agent-compose (&optional to subject other-headers continue |
| 3569 switch-function yank-action | |
| 3570 send-actions) | |
| 3571 (if switch-function | |
| 3572 (let ((special-display-buffer-names nil) | |
| 3573 (special-display-regexps nil) | |
| 3574 (same-window-buffer-names nil) | |
| 3575 (same-window-regexps nil)) | |
| 3576 (funcall switch-function "*mail*"))) | |
| 3577 (let ((cc (cdr (assoc-ignore-case "cc" other-headers))) | |
| 1333 | 3578 (in-reply-to (cdr (assoc-ignore-case "in-reply-to" other-headers))) |
| 3579 (body (cdr (assoc-ignore-case "body" other-headers)))) | |
| 776 | 3580 (or (declare-fboundp |
| 3581 (mail continue to subject in-reply-to cc yank-action send-actions)) | |
| 428 | 3582 continue |
| 3583 (error "Message aborted")) | |
| 3584 (save-excursion | |
| 1333 | 3585 (rfc822-goto-eoh) |
| 428 | 3586 (while other-headers |
| 1333 | 3587 (unless (member* (car (car other-headers)) |
| 3588 '("in-reply-to" "cc" "body") | |
| 3589 :test 'equalp) | |
| 428 | 3590 (insert (car (car other-headers)) ": " |
| 3591 (cdr (car other-headers)) "\n")) | |
| 3592 (setq other-headers (cdr other-headers))) | |
| 1333 | 3593 (when body |
| 3594 (forward-line 1) | |
| 3595 (insert body)) | |
| 428 | 3596 t))) |
| 3597 | |
| 3598 (define-mail-user-agent 'mh-e-user-agent | |
| 1333 | 3599 'mh-smail-batch 'mh-send-letter 'mh-fully-kill-draft |
| 428 | 3600 'mh-before-send-letter-hook) |
| 3601 | |
| 3602 (defun compose-mail (&optional to subject other-headers continue | |
| 3603 switch-function yank-action send-actions) | |
| 3604 "Start composing a mail message to send. | |
| 3605 This uses the user's chosen mail composition package | |
| 3606 as selected with the variable `mail-user-agent'. | |
| 3607 The optional arguments TO and SUBJECT specify recipients | |
| 3608 and the initial Subject field, respectively. | |
| 3609 | |
| 3610 OTHER-HEADERS is an alist specifying additional | |
| 3611 header fields. Elements look like (HEADER . VALUE) where both | |
| 3612 HEADER and VALUE are strings. | |
| 3613 | |
| 3614 CONTINUE, if non-nil, says to continue editing a message already | |
| 3615 being composed. | |
| 3616 | |
| 3617 SWITCH-FUNCTION, if non-nil, is a function to use to | |
| 3618 switch to and display the buffer used for mail composition. | |
| 3619 | |
| 3620 YANK-ACTION, if non-nil, is an action to perform, if and when necessary, | |
| 3621 to insert the raw text of the message being replied to. | |
| 3622 It has the form (FUNCTION . ARGS). The user agent will apply | |
| 3623 FUNCTION to ARGS, to insert the raw text of the original message. | |
| 3624 \(The user agent will also run `mail-citation-hook', *after* the | |
| 3625 original text has been inserted in this way.) | |
| 3626 | |
| 3627 SEND-ACTIONS is a list of actions to call when the message is sent. | |
| 3628 Each action has the form (FUNCTION . ARGS)." | |
| 3629 (interactive | |
| 3630 (list nil nil nil current-prefix-arg)) | |
| 3631 (let ((function (get mail-user-agent 'composefunc))) | |
| 3632 (funcall function to subject other-headers continue | |
| 3633 switch-function yank-action send-actions))) | |
| 3634 | |
| 3635 (defun compose-mail-other-window (&optional to subject other-headers continue | |
| 3636 yank-action send-actions) | |
| 3637 "Like \\[compose-mail], but edit the outgoing message in another window." | |
| 3638 (interactive | |
| 3639 (list nil nil nil current-prefix-arg)) | |
| 3640 (compose-mail to subject other-headers continue | |
| 3641 'switch-to-buffer-other-window yank-action send-actions)) | |
| 3642 | |
| 3643 | |
| 3644 (defun compose-mail-other-frame (&optional to subject other-headers continue | |
| 3645 yank-action send-actions) | |
| 3646 "Like \\[compose-mail], but edit the outgoing message in another frame." | |
| 3647 (interactive | |
| 3648 (list nil nil nil current-prefix-arg)) | |
| 3649 (compose-mail to subject other-headers continue | |
| 3650 'switch-to-buffer-other-frame yank-action send-actions)) | |
| 3651 | |
| 3652 | |
| 442 | 3653 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 3654 ;; set variable ;; | |
| 3655 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3656 | |
| 1333 | 3657 (defvar set-variable-value-history nil |
| 3658 "History of values entered with `set-variable'.") | |
| 3659 | |
| 428 | 3660 (defun set-variable (var val) |
| 3661 "Set VARIABLE to VALUE. VALUE is a Lisp object. | |
| 1333 | 3662 When using this interactively, enter a Lisp object for VALUE. |
| 428 | 3663 If you want VALUE to be a string, you must surround it with doublequotes. |
| 1333 | 3664 VALUE is used literally, not evaluated. |
| 3665 | |
| 428 | 3666 If VARIABLE is a specifier, VALUE is added to it as an instantiator in |
| 3667 the 'global locale with nil tag set (see `set-specifier'). | |
| 3668 | |
| 3669 If VARIABLE has a `variable-interactive' property, that is used as if | |
| 1333 | 3670 it were the arg to `interactive' (which see) to interactively read VALUE. |
| 3671 | |
| 3672 If VARIABLE has been defined with `defcustom', then the type information | |
| 3673 in the definition is used to check that VALUE is valid." | |
| 428 | 3674 (interactive |
| 1333 | 3675 (let* ((default-var (variable-at-point)) |
| 3676 (var (if (symbolp default-var) | |
| 3677 (read-variable (format "Set variable (default %s): " default-var) | |
| 3678 default-var) | |
| 3679 (read-variable "Set variable: "))) | |
| 3680 (minibuffer-help-form '(describe-variable var)) | |
| 3681 (prop (get var 'variable-interactive)) | |
| 3682 (prompt (format "Set %s to value: " var)) | |
| 3683 (val (if prop | |
| 3684 ;; Use VAR's `variable-interactive' property | |
| 3685 ;; as an interactive spec for prompting. | |
| 3686 (call-interactively `(lambda (arg) | |
| 3687 (interactive ,prop) | |
| 3688 arg)) | |
| 3689 (read | |
| 3690 (read-string prompt nil | |
| 3691 'set-variable-value-history))))) | |
| 3692 (list var val))) | |
| 3693 | |
| 3694 (let ((type (get var 'custom-type))) | |
| 3695 (when type | |
| 3696 ;; Match with custom type. | |
| 3697 (require 'cus-edit) | |
| 3698 (setq type (widget-convert type)) | |
| 3699 (unless (widget-apply type :match val) | |
| 3700 (error "Value `%S' does not match type %S of %S" | |
| 3701 val (car type) var)))) | |
| 428 | 3702 (if (and (boundp var) (specifierp (symbol-value var))) |
| 3703 (set-specifier (symbol-value var) val) | |
| 1333 | 3704 (set var val)) |
| 3705 | |
| 3706 ;; Force a thorough redisplay for the case that the variable | |
| 3707 ;; has an effect on the display, like `tab-width' has. | |
| 3708 (force-mode-line-update)) | |
| 3709 | |
| 3710 | |
| 3711 | |
| 3712 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3713 ;; forking a twin copy of a buffer ;; | |
| 3714 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3715 | |
| 3716 (defvar clone-buffer-hook nil | |
| 3717 "Normal hook to run in the new buffer at the end of `clone-buffer'.") | |
| 3718 | |
| 3719 (defun clone-process (process &optional newname) | |
| 3720 "Create a twin copy of PROCESS. | |
| 3721 If NEWNAME is nil, it defaults to PROCESS' name; | |
| 3722 NEWNAME is modified by adding or incrementing <N> at the end as necessary. | |
| 3723 If PROCESS is associated with a buffer, the new process will be associated | |
| 3724 with the current buffer instead. | |
| 3725 Returns nil if PROCESS has already terminated." | |
| 3726 (setq newname (or newname (process-name process))) | |
| 3727 (if (string-match "<[0-9]+>\\'" newname) | |
| 3728 (setq newname (substring newname 0 (match-beginning 0)))) | |
| 3729 (when (memq (process-status process) '(run stop open)) | |
| 3730 (let* ((process-connection-type (process-tty-name process)) | |
| 3731 (old-kwoq (process-kill-without-query process nil)) | |
| 3732 (new-process | |
| 3733 (if (memq (process-status process) '(open)) | |
| 3734 (apply 'open-network-stream newname | |
| 3735 (if (process-buffer process) (current-buffer)) | |
| 3736 ;; FSF: (process-contact process) | |
| 3737 (process-command process)) | |
| 3738 (apply 'start-process newname | |
| 3739 (if (process-buffer process) (current-buffer)) | |
| 3740 (process-command process))))) | |
| 3741 (process-kill-without-query new-process old-kwoq) | |
| 3742 (process-kill-without-query process old-kwoq) | |
| 3743 ;; FSF 21.2: | |
| 3744 ; (set-process-inherit-coding-system-flag | |
| 3745 ; new-process (process-inherit-coding-system-flag process)) | |
| 3746 (set-process-filter new-process (process-filter process)) | |
| 3747 (set-process-sentinel new-process (process-sentinel process)) | |
| 3748 new-process))) | |
| 3749 | |
| 3750 ;; things to maybe add (currently partly covered by `funcall mode': | |
| 3751 ;; - syntax-table | |
| 3752 ;; - overlays | |
| 3753 (defun clone-buffer (&optional newname display-flag) | |
| 3754 "Create a twin copy of the current buffer. | |
| 3755 If NEWNAME is nil, it defaults to the current buffer's name; | |
| 3756 NEWNAME is modified by adding or incrementing <N> at the end as necessary. | |
| 3757 | |
| 3758 If DISPLAY-FLAG is non-nil, the new buffer is shown with `pop-to-buffer'. | |
| 3759 This runs the normal hook `clone-buffer-hook' in the new buffer | |
| 3760 after it has been set up properly in other respects." | |
| 3761 (interactive (list (if current-prefix-arg (read-string "Name: ")) | |
| 3762 t)) | |
| 3763 (if buffer-file-name | |
| 3764 (error "Cannot clone a file-visiting buffer")) | |
| 3765 (if (get major-mode 'no-clone) | |
| 3766 (error "Cannot clone a buffer in %s mode" mode-name)) | |
| 3767 (setq newname (or newname (buffer-name))) | |
| 3768 (if (string-match "<[0-9]+>\\'" newname) | |
| 3769 (setq newname (substring newname 0 (match-beginning 0)))) | |
| 3770 (let ((buf (current-buffer)) | |
| 3771 (ptmin (point-min)) | |
| 3772 (ptmax (point-max)) | |
| 3773 (pt (point)) | |
| 3774 (mk (mark t)) ;(if mark-active (mark t))) | |
| 3775 (modified (buffer-modified-p)) | |
| 3776 (mode major-mode) | |
| 3777 (lvars (buffer-local-variables)) | |
| 3778 (process (get-buffer-process (current-buffer))) | |
| 3779 (new (generate-new-buffer (or newname (buffer-name))))) | |
| 3780 (save-restriction | |
| 3781 (widen) | |
| 3782 (with-current-buffer new | |
| 3783 (insert-buffer-substring buf))) | |
| 3784 (with-current-buffer new | |
| 3785 (narrow-to-region ptmin ptmax) | |
| 3786 (goto-char pt) | |
| 3787 (if mk (set-mark mk)) | |
| 3788 (set-buffer-modified-p modified) | |
| 3789 | |
| 3790 ;; Clone the old buffer's process, if any. | |
| 3791 (when process (clone-process process)) | |
| 3792 | |
| 3793 ;; Now set up the major mode. | |
| 3794 (funcall mode) | |
| 3795 | |
| 3796 ;; Set up other local variables. | |
|
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|
3797 (mapc (lambda (v) |
|
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|
3798 (condition-case () ;in case var is read-only |
|
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4687
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|
3799 (if (symbolp v) |
|
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changeset
|
3800 (makunbound v) |
|
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diff
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|
3801 (set (make-local-variable (car v)) (cdr v))) |
|
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|
3802 (error nil))) |
|
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|
3803 lvars) |
| 1333 | 3804 |
| 3805 ;; Run any hooks (typically set up by the major mode | |
| 3806 ;; for cloning to work properly). | |
| 3807 (run-hooks 'clone-buffer-hook)) | |
| 3808 (if display-flag (pop-to-buffer new)) | |
| 3809 new)) | |
| 3810 | |
| 3811 | |
| 3812 (defun clone-indirect-buffer (newname display-flag &optional norecord) | |
| 3813 "Create an indirect buffer that is a twin copy of the current buffer. | |
| 3814 | |
| 3815 Give the indirect buffer name NEWNAME. Interactively, read NEW-NAME | |
| 3816 from the minibuffer when invoked with a prefix arg. If NEWNAME is nil | |
| 3817 or if not called with a prefix arg, NEWNAME defaults to the current | |
| 3818 buffer's name. The name is modified by adding a `<N>' suffix to it | |
| 3819 or by incrementing the N in an existing suffix. | |
| 3820 | |
| 3821 DISPLAY-FLAG non-nil means show the new buffer with `pop-to-buffer'. | |
| 3822 This is always done when called interactively. | |
| 3823 | |
| 3824 Optional last arg NORECORD non-nil means do not put this buffer at the | |
| 3825 front of the list of recently selected ones." | |
| 3826 (interactive (list (if current-prefix-arg | |
| 3827 (read-string "BName of indirect buffer: ")) | |
| 3828 t)) | |
| 3829 (setq newname (or newname (buffer-name))) | |
| 3830 (if (string-match "<[0-9]+>\\'" newname) | |
| 3831 (setq newname (substring newname 0 (match-beginning 0)))) | |
| 3832 (let* ((name (generate-new-buffer-name newname)) | |
| 3833 (buffer (make-indirect-buffer (current-buffer) name t))) | |
| 3834 (when display-flag | |
| 3835 (pop-to-buffer buffer norecord)) | |
| 3836 buffer)) | |
| 3837 | |
| 3838 | |
| 3839 (defun clone-indirect-buffer-other-window (buffer &optional norecord) | |
| 3840 "Create an indirect buffer that is a twin copy of BUFFER. | |
| 3841 Select the new buffer in another window. | |
| 3842 Optional second arg NORECORD non-nil means do not put this buffer at | |
| 3843 the front of the list of recently selected ones." | |
| 3844 (interactive "bClone buffer in other window: ") | |
| 3845 (let ((pop-up-windows t)) | |
| 3846 (set-buffer buffer) | |
| 3847 (clone-indirect-buffer nil t norecord))) | |
| 3848 | |
| 3849 ;; END SYNCHED WITH FSF 21.2. | |
| 442 | 3850 |
| 428 | 3851 |
| 442 | 3852 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 3853 ;; case changing code ;; | |
| 3854 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 428 | 3855 |
| 3856 ;; A bunch of stuff was moved elsewhere: | |
| 3857 ;; completion-list-mode-map | |
| 3858 ;; completion-reference-buffer | |
| 3859 ;; completion-base-size | |
| 3860 ;; delete-completion-window | |
| 3861 ;; previous-completion | |
| 3862 ;; next-completion | |
| 3863 ;; choose-completion | |
| 3864 ;; choose-completion-delete-max-match | |
| 3865 ;; choose-completion-string | |
| 3866 ;; completion-list-mode | |
| 3867 ;; completion-fixup-function | |
| 3868 ;; completion-setup-function | |
| 3869 ;; switch-to-completions | |
| 3870 ;; event stuffs | |
| 3871 ;; keypad stuffs | |
| 3872 | |
| 3873 ;; The rest of this file is not in Lisp in FSF | |
| 3874 (defun capitalize-region-or-word (arg) | |
| 3875 "Capitalize the selected region or the following word (or ARG words)." | |
| 3876 (interactive "p") | |
| 3877 (if (region-active-p) | |
| 3878 (capitalize-region (region-beginning) (region-end)) | |
| 3879 (capitalize-word arg))) | |
| 3880 | |
| 3881 (defun upcase-region-or-word (arg) | |
| 3882 "Upcase the selected region or the following word (or ARG words)." | |
| 3883 (interactive "p") | |
| 3884 (if (region-active-p) | |
| 3885 (upcase-region (region-beginning) (region-end)) | |
| 3886 (upcase-word arg))) | |
| 3887 | |
| 3888 (defun downcase-region-or-word (arg) | |
| 3889 "Downcase the selected region or the following word (or ARG words)." | |
| 3890 (interactive "p") | |
| 3891 (if (region-active-p) | |
| 3892 (downcase-region (region-beginning) (region-end)) | |
| 3893 (downcase-word arg))) | |
| 3894 | |
| 442 | 3895 ;; #### not localized |
| 3896 (defvar uncapitalized-title-words | |
| 3897 '("the" "a" "an" "in" "of" "for" "to" "and" "but" "at" "on" "as" "by")) | |
| 3898 | |
| 3899 (defvar uncapitalized-title-word-regexp | |
| 3900 (concat "[ \t]*\\(" (mapconcat #'identity uncapitalized-title-words "\\|") | |
| 3901 "\\)\\>")) | |
| 3902 | |
| 3903 (defun capitalize-string-as-title (string) | |
| 3904 "Capitalize the words in the string, except for small words (as in titles). | |
| 3905 The words not capitalized are specified in `uncapitalized-title-words'." | |
|
4946
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Ben Wing <ben@xemacs.org>
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4869
diff
changeset
|
3906 (with-string-as-buffer-contents string |
|
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diff
changeset
|
3907 (capitalize-region-as-title (point-min) (point-max)))) |
| 442 | 3908 |
| 3909 (defun capitalize-region-as-title (b e &optional buffer) | |
| 3910 "Capitalize the words in the region, except for small words (as in titles). | |
| 3911 The words not capitalized are specified in `uncapitalized-title-words'." | |
| 3912 (interactive "r") | |
| 3913 (save-excursion | |
| 3914 (and buffer | |
| 3915 (set-buffer buffer)) | |
| 3916 (save-restriction | |
| 3917 (narrow-to-region b e) | |
| 3918 (goto-char (point-min)) | |
| 3919 (let ((first t)) | |
| 3920 (while (< (point) (point-max)) | |
| 3921 (if (or first | |
| 3922 (not (looking-at uncapitalized-title-word-regexp))) | |
| 3923 (capitalize-word 1) | |
| 3924 (forward-word 1)) | |
| 3925 (setq first nil)))))) | |
| 3926 | |
| 3927 | |
| 3928 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3929 ;; zmacs active region code ;; | |
| 3930 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3931 | |
| 428 | 3932 ;; Most of the zmacs code is now in elisp. The only thing left in C |
| 3933 ;; are the variables zmacs-regions, zmacs-region-active-p and | |
| 3934 ;; zmacs-region-stays plus the function zmacs_update_region which | |
| 3935 ;; simply calls the lisp level zmacs-update-region. It must remain | |
| 3936 ;; for convenience, since it is called by core C code. | |
| 3937 | |
| 442 | 3938 ;; XEmacs |
| 3939 (defun activate-region () | |
| 3940 "Activate the region, if `zmacs-regions' is true. | |
| 3941 Setting `zmacs-regions' to true causes LISPM-style active regions to be used. | |
| 3942 This function has no effect if `zmacs-regions' is false." | |
| 3943 (interactive) | |
| 3944 (and zmacs-regions (zmacs-activate-region))) | |
| 3945 | |
| 3946 ;; XEmacs | |
| 3947 (defsubst region-exists-p () | |
| 3948 "Return t if the region exists. | |
| 3949 If active regions are in use (i.e. `zmacs-regions' is true), this means that | |
| 3950 the region is active. Otherwise, this means that the user has pushed | |
| 3951 a mark in this buffer at some point in the past. | |
| 3952 The functions `region-beginning' and `region-end' can be used to find the | |
| 502 | 3953 limits of the region. |
| 3954 | |
| 3955 You should use this, *NOT* `region-active-p', in a menu item | |
| 3956 specification that you want grayed out when the region is not active: | |
| 3957 | |
| 3958 [ ... ... :active (region-exists-p)] | |
| 3959 | |
| 3960 This correctly caters to the user's setting of `zmacs-regions'." | |
| 442 | 3961 (not (null (mark)))) |
| 3962 | |
| 3963 ;; XEmacs | |
| 3964 (defun region-active-p () | |
| 2611 | 3965 "Return non-nil if the region is active in the current buffer. |
| 442 | 3966 If `zmacs-regions' is true, this is equivalent to `region-exists-p'. |
| 502 | 3967 Otherwise, this function always returns false. |
| 3968 | |
| 3969 You should generally *NOT* use this in a menu item specification that you | |
| 3970 want grayed out when the region is not active. Instead, use this: | |
| 3971 | |
| 3972 [ ... ... :active (region-exists-p)] | |
| 3973 | |
| 3974 Which correctly caters to the user's setting of `zmacs-regions'." | |
| 2611 | 3975 (and zmacs-regions zmacs-region-extent |
| 3976 (eq (current-buffer) (zmacs-region-buffer)))) | |
| 442 | 3977 |
| 428 | 3978 (defvar zmacs-activate-region-hook nil |
| 3979 "Function or functions called when the region becomes active; | |
| 3980 see the variable `zmacs-regions'.") | |
| 3981 | |
| 3982 (defvar zmacs-deactivate-region-hook nil | |
| 3983 "Function or functions called when the region becomes inactive; | |
| 3984 see the variable `zmacs-regions'.") | |
| 3985 | |
| 3986 (defvar zmacs-update-region-hook nil | |
| 3987 "Function or functions called when the active region changes. | |
| 3988 This is called after each command that sets `zmacs-region-stays' to t. | |
| 3989 See the variable `zmacs-regions'.") | |
| 3990 | |
| 487 | 3991 (add-hook 'zmacs-deactivate-region-hook 'disown-selection) |
| 3992 (add-hook 'zmacs-activate-region-hook 'activate-region-as-selection) | |
| 3993 (add-hook 'zmacs-update-region-hook 'activate-region-as-selection) | |
| 3994 | |
| 428 | 3995 (defvar zmacs-region-extent nil |
| 3996 "The extent of the zmacs region; don't use this.") | |
| 3997 | |
| 3998 (defvar zmacs-region-rectangular-p nil | |
| 3999 "Whether the zmacs region is a rectangle; don't use this.") | |
| 4000 | |
| 4001 (defun zmacs-make-extent-for-region (region) | |
| 4002 ;; Given a region, this makes an extent in the buffer which holds that | |
| 4003 ;; region, for highlighting purposes. If the region isn't associated | |
| 4004 ;; with a buffer, this does nothing. | |
| 4005 (let ((buffer nil) | |
| 4006 (valid (and (extentp zmacs-region-extent) | |
| 4007 (extent-object zmacs-region-extent) | |
| 4008 (buffer-live-p (extent-object zmacs-region-extent)))) | |
| 4009 start end) | |
| 4010 (cond ((consp region) | |
| 4011 (setq start (min (car region) (cdr region)) | |
| 4012 end (max (car region) (cdr region)) | |
| 4013 valid (and valid | |
| 4014 (eq (marker-buffer (car region)) | |
| 4015 (extent-object zmacs-region-extent))) | |
| 4016 buffer (marker-buffer (car region)))) | |
| 4017 (t | |
| 4018 (signal 'error (list "Invalid region" region)))) | |
| 4019 | |
| 4020 (if valid | |
| 4021 nil | |
| 4022 ;; The condition case is in case any of the extents are dead or | |
| 4023 ;; otherwise incapacitated. | |
| 4024 (condition-case () | |
| 4025 (if (listp zmacs-region-extent) | |
| 4026 (mapc 'delete-extent zmacs-region-extent) | |
| 4027 (delete-extent zmacs-region-extent)) | |
| 4028 (error nil))) | |
| 4029 | |
| 4030 (if valid | |
| 4031 (set-extent-endpoints zmacs-region-extent start end) | |
| 4032 (setq zmacs-region-extent (make-extent start end buffer)) | |
| 4033 | |
| 4034 ;; Make the extent be closed on the right, which means that if | |
| 4035 ;; characters are inserted exactly at the end of the extent, the | |
| 4036 ;; extent will grow to cover them. This is important for shell | |
| 4037 ;; buffers - suppose one makes a region, and one end is at point-max. | |
| 4038 ;; If the shell produces output, that marker will remain at point-max | |
| 4039 ;; (its position will increase). So it's important that the extent | |
| 4040 ;; exhibit the same behavior, lest the region covered by the extent | |
| 4041 ;; (the visual indication), and the region between point and mark | |
| 4042 ;; (the actual region value) become different! | |
| 4043 (set-extent-property zmacs-region-extent 'end-open nil) | |
| 4044 | |
| 4045 ;; use same priority as mouse-highlighting so that conflicts between | |
| 4046 ;; the region extent and a mouse-highlighted extent are resolved by | |
| 4047 ;; the usual size-and-endpoint-comparison method. | |
| 4048 (set-extent-priority zmacs-region-extent mouse-highlight-priority) | |
| 4049 (set-extent-face zmacs-region-extent 'zmacs-region) | |
| 4050 | |
| 4051 ;; #### It might be better to actually break | |
| 4052 ;; default-mouse-track-next-move-rect out of mouse.el so that we | |
| 4053 ;; can use its logic here. | |
| 4054 (cond | |
| 4055 (zmacs-region-rectangular-p | |
| 4056 (setq zmacs-region-extent (list zmacs-region-extent)) | |
|
5368
ed74d2ca7082
Use ', not #', when a given symbol may not have a function binding at read time
Aidan Kehoe <kehoea@parhasard.net>
parents:
5321
diff
changeset
|
4057 (when-fboundp 'default-mouse-track-next-move-rect |
| 4222 | 4058 (default-mouse-track-next-move-rect start end zmacs-region-extent)) |
| 428 | 4059 )) |
| 4060 | |
| 4061 zmacs-region-extent))) | |
| 4062 | |
| 4063 (defun zmacs-region-buffer () | |
| 4064 "Return the buffer containing the zmacs region, or nil." | |
| 4065 ;; #### this is horrible and kludgy! This stuff needs to be rethought. | |
| 4066 (and zmacs-regions zmacs-region-active-p | |
| 4067 (or (marker-buffer (mark-marker t)) | |
| 4068 (and (extent-live-p zmacs-region-extent) | |
| 4069 (buffer-live-p (extent-object zmacs-region-extent)) | |
| 4070 (extent-object zmacs-region-extent))))) | |
| 4071 | |
| 4072 (defun zmacs-activate-region () | |
| 4073 "Make the region between `point' and `mark' be active (highlighted), | |
| 4074 if `zmacs-regions' is true. Only a very small number of commands | |
| 4075 should ever do this. Calling this function will call the hook | |
| 4076 `zmacs-activate-region-hook', if the region was previously inactive. | |
| 4077 Calling this function ensures that the region stays active after the | |
| 4078 current command terminates, even if `zmacs-region-stays' is not set. | |
| 4079 Returns t if the region was activated (i.e. if `zmacs-regions' if t)." | |
| 4080 (if (not zmacs-regions) | |
| 4081 nil | |
| 4082 (setq zmacs-region-active-p t | |
| 4083 zmacs-region-stays t | |
| 4222 | 4084 zmacs-region-rectangular-p (and-boundp 'mouse-track-rectangle-p |
| 4085 mouse-track-rectangle-p)) | |
| 428 | 4086 (if (marker-buffer (mark-marker t)) |
| 4087 (zmacs-make-extent-for-region (cons (point-marker t) (mark-marker t)))) | |
| 4088 (run-hooks 'zmacs-activate-region-hook) | |
| 4089 t)) | |
| 4090 | |
| 4091 (defun zmacs-deactivate-region () | |
| 4092 "Make the region between `point' and `mark' no longer be active, | |
| 4093 if `zmacs-regions' is true. You shouldn't need to call this; the | |
| 4094 command loop calls it when appropriate. Calling this function will | |
| 4095 call the hook `zmacs-deactivate-region-hook', if the region was | |
| 4096 previously active. Returns t if the region had been active, nil | |
| 4097 otherwise." | |
| 4098 (if (not zmacs-region-active-p) | |
| 4099 nil | |
| 4100 (setq zmacs-region-active-p nil | |
| 4101 zmacs-region-stays nil | |
| 4102 zmacs-region-rectangular-p nil) | |
| 4103 (if zmacs-region-extent | |
| 4104 (let ((inhibit-quit t)) | |
| 4105 (if (listp zmacs-region-extent) | |
| 4106 (mapc 'delete-extent zmacs-region-extent) | |
| 4107 (delete-extent zmacs-region-extent)) | |
| 4108 (setq zmacs-region-extent nil))) | |
| 4109 (run-hooks 'zmacs-deactivate-region-hook) | |
| 4110 t)) | |
| 4111 | |
| 4112 (defun zmacs-update-region () | |
| 4113 "Update the highlighted region between `point' and `mark'. | |
| 4114 You shouldn't need to call this; the command loop calls it | |
| 4115 when appropriate. Calling this function will call the hook | |
| 4116 `zmacs-update-region-hook', if the region is active." | |
| 4117 (when zmacs-region-active-p | |
| 4118 (when (marker-buffer (mark-marker t)) | |
| 4119 (zmacs-make-extent-for-region (cons (point-marker t) | |
| 4120 (mark-marker t)))) | |
| 4121 (run-hooks 'zmacs-update-region-hook))) | |
| 4122 | |
| 442 | 4123 |
| 4124 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 4125 ;; message logging code ;; | |
| 4126 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 428 | 4127 |
| 4128 ;;; #### Should this be moved to a separate file, for clarity? | |
| 4129 ;;; -hniksic | |
| 4130 | |
| 4131 ;;; The `message-stack' is an alist of labels with messages; the first | |
| 4132 ;;; message in this list is always in the echo area. A call to | |
| 4133 ;;; `display-message' inserts a label/message pair at the head of the | |
| 4134 ;;; list, and removes any other pairs with that label. Calling | |
| 4135 ;;; `clear-message' causes any pair with matching label to be removed, | |
| 4136 ;;; and this may cause the displayed message to change or vanish. If | |
| 4137 ;;; the label arg is nil, the entire message stack is cleared. | |
| 4138 ;;; | |
| 4139 ;;; Message/error filtering will be a little tricker to implement than | |
| 4140 ;;; logging, since messages can be built up incrementally | |
| 4141 ;;; using clear-message followed by repeated calls to append-message | |
| 4142 ;;; (this happens with error messages). For messages which aren't | |
| 4143 ;;; created this way, filtering could be implemented at display-message | |
| 4144 ;;; very easily. | |
| 4145 ;;; | |
| 4146 ;;; Bits of the logging code are borrowed from log-messages.el by | |
| 4147 ;;; Robert Potter (rpotter@grip.cis.upenn.edu). | |
| 4148 | |
| 4149 ;; need this to terminate the currently-displayed message | |
| 4150 ;; ("Loading simple ...") | |
| 4151 (when (and | |
| 4152 (not (fboundp 'display-message)) | |
| 4153 (not (featurep 'debug))) | |
| 1346 | 4154 (set-device-clear-left-side nil nil) |
| 428 | 4155 (send-string-to-terminal "\n")) |
| 4156 | |
| 4157 (defvar message-stack nil | |
| 4158 "An alist of label/string pairs representing active echo-area messages. | |
| 4159 The first element in the list is currently displayed in the echo area. | |
| 4160 Do not modify this directly--use the `message' or | |
| 4161 `display-message'/`clear-message' functions.") | |
| 4162 | |
| 4163 (defvar remove-message-hook 'log-message | |
| 4164 "A function or list of functions to be called when a message is removed | |
| 4165 from the echo area at the bottom of the frame. The label of the removed | |
| 4166 message is passed as the first argument, and the text of the message | |
| 4167 as the second argument.") | |
| 4168 | |
| 4169 (defcustom log-message-max-size 50000 | |
| 4170 "Maximum size of the \" *Message-Log*\" buffer. See `log-message'." | |
| 4171 :type 'integer | |
| 4172 :group 'log-message) | |
| 4173 (make-compatible-variable 'message-log-max 'log-message-max-size) | |
| 4174 | |
| 4175 ;; We used to reject quite a lot of stuff here, but it was a bad idea, | |
| 4176 ;; for two reasons: | |
| 4177 ;; | |
| 4178 ;; a) In most circumstances, you *want* to see the message in the log. | |
| 4179 ;; The explicitly non-loggable messages should be marked as such by | |
| 4180 ;; the issuer. Gratuitous non-displaying of random regexps made | |
| 4181 ;; debugging harder, too (because various reasonable debugging | |
| 4182 ;; messages would get eaten). | |
| 4183 ;; | |
| 4184 ;; b) It slowed things down. Yes, visibly. | |
| 4185 ;; | |
| 4186 ;; So, I left only a few of the really useless ones on this kill-list. | |
| 4187 ;; | |
| 4188 ;; --hniksic | |
| 4189 (defcustom log-message-ignore-regexps | |
| 4190 '(;; Note: adding entries to this list slows down messaging | |
| 440 | 4191 ;; significantly. Wherever possible, use message labels. |
| 428 | 4192 |
| 4193 ;; Often-seen messages | |
| 4194 "\\`\\'" ; empty message | |
| 4195 "\\`\\(Beginning\\|End\\) of buffer\\'" | |
| 4196 ;;"^Quit$" | |
| 4197 ;; completions | |
| 4198 ;; Many packages print this -- impossible to categorize | |
| 4199 ;;"^Making completion list" | |
| 4200 ;; Gnus | |
| 4201 ;; "^No news is no news$" | |
| 4202 ;; "^No more\\( unread\\)? newsgroups$" | |
| 4203 ;; "^Opening [^ ]+ server\\.\\.\\." | |
| 4204 ;; "^[^:]+: Reading incoming mail" | |
| 4205 ;; "^Getting mail from " | |
| 4206 ;; "^\\(Generating Summary\\|Sorting threads\\|Making sparse threads\\|Scoring\\|Checking new news\\|Expiring articles\\|Sending\\)\\.\\.\\." | |
| 4207 ;; "^\\(Fetching headers for\\|Retrieving newsgroup\\|Reading active file\\)" | |
| 4208 ;; "^No more\\( unread\\)? articles" | |
| 4209 ;; "^Deleting article " | |
| 4210 ;; W3 | |
| 4211 ;; "^Parsed [0-9]+ of [0-9]+ ([0-9]+%)" | |
| 4212 ) | |
| 4213 "List of regular expressions matching messages which shouldn't be logged. | |
| 4214 See `log-message'. | |
| 4215 | |
| 3929 | 4216 Adding entries to this list slows down messaging significantly. Wherever |
| 4217 possible, messages which might need to be ignored should be labeled with | |
| 4218 'progress, 'prompt, or 'no-log, so they can be filtered by | |
| 4219 log-message-ignore-labels." | |
| 428 | 4220 :type '(repeat regexp) |
| 4221 :group 'log-message) | |
| 4222 | |
| 4223 (defcustom log-message-ignore-labels | |
| 4224 '(help-echo command progress prompt no-log garbage-collecting auto-saving) | |
| 4225 "List of symbols indicating labels of messages which shouldn't be logged. | |
| 4226 See `display-message' for some common labels. See also `log-message'." | |
| 4227 :type '(repeat (symbol :tag "Label")) | |
| 4228 :group 'log-message) | |
| 4229 | |
| 1703 | 4230 (defcustom redisplay-echo-area-function 'redisplay-echo-area |
| 4231 "The function to call to display echo area buffer." | |
| 4232 :type 'function | |
| 4233 :group 'log-message) | |
| 4234 | |
| 4235 (defcustom undisplay-echo-area-function nil | |
| 3929 | 4236 "The function to call to undisplay echo area buffer. |
| 4237 WARNING: any problem with your function is likely to result in an | |
| 4238 uninterruptible infinite loop. Use of custom functions is therefore not | |
| 4239 recommended." | |
| 4240 :type '(choice (const nil) | |
| 4241 function) | |
| 4242 :group 'log-message) | |
| 4243 | |
| 4244 (defvar undisplay-echo-area-resize-window-allowed t | |
| 4245 "INTERNAL USE ONLY. | |
| 4246 Guards against `undisplay-echo-area-resize-window' infloops. | |
| 4247 Touch this at your own risk.") | |
| 4248 | |
| 4249 (defun undisplay-echo-area-resize-window () | |
| 4250 "Resize idle echo area window to `resize-minibuffer-idle-height'. | |
| 4251 If either `resize-minibuffer-idle-height' or `resize-minibuffer-mode' is nil, | |
| 4252 does nothing. If `resize-minibuffer-window-exactly' is non-nil, always resize | |
| 4253 to this height exactly, otherwise if current height is no larger than this, | |
| 4254 leave it as is." | |
| 4255 (when (default-value undisplay-echo-area-resize-window-allowed) | |
| 4256 (setq-default undisplay-echo-area-resize-window-allowed nil) | |
| 4257 (let* ((mbw (minibuffer-window)) | |
| 4258 (height (window-height mbw))) | |
| 4259 (with-boundp '(resize-minibuffer-idle-height) | |
| 4260 (and resize-minibuffer-mode | |
| 4261 (numberp resize-minibuffer-idle-height) | |
| 4262 (> resize-minibuffer-idle-height 0) | |
| 4263 (unless (if resize-minibuffer-window-exactly | |
| 4264 (= resize-minibuffer-idle-height height) | |
| 4265 (<= resize-minibuffer-idle-height height)) | |
| 4266 (enlarge-window (- resize-minibuffer-idle-height height) | |
| 4267 nil mbw)))) | |
| 4268 (setq-default undisplay-echo-area-resize-window-allowed t)))) | |
| 1703 | 4269 |
| 428 | 4270 ;;Subsumed by view-lossage |
| 4271 ;; Not really, I'm adding it back by popular demand. -slb | |
| 4272 (defun show-message-log () | |
| 4273 "Show the \" *Message-Log*\" buffer, which contains old messages and errors." | |
| 4274 (interactive) | |
| 793 | 4275 (view-lossage t)) |
| 428 | 4276 |
| 4277 (defvar log-message-filter-function 'log-message-filter | |
| 4278 "Value must be a function of two arguments: a symbol (label) and | |
| 4279 a string (message). It should return non-nil to indicate a message | |
| 4280 should be logged. Possible values include 'log-message-filter and | |
| 4281 'log-message-filter-errors-only.") | |
| 4282 | |
| 4283 (defun log-message-filter (label message) | |
| 4284 "Default value of `log-message-filter-function'. | |
| 4285 Messages whose text matches one of the `log-message-ignore-regexps' | |
| 4286 or whose label appears in `log-message-ignore-labels' are not saved." | |
| 4287 (let ((r log-message-ignore-regexps) | |
| 4288 (ok (not (memq label log-message-ignore-labels)))) | |
| 4289 (save-match-data | |
| 4290 (while (and r ok) | |
| 4291 (when (string-match (car r) message) | |
| 4292 (setq ok nil)) | |
| 4293 (setq r (cdr r)))) | |
| 4294 ok)) | |
| 4295 | |
| 4296 (defun log-message-filter-errors-only (label message) | |
| 4297 "For use as the `log-message-filter-function'. Only logs error messages." | |
| 4298 (eq label 'error)) | |
| 4299 | |
| 4300 (defun log-message (label message) | |
| 4301 "Stuff a copy of the message into the \" *Message-Log*\" buffer, | |
| 4302 if it satisfies the `log-message-filter-function'. | |
| 4303 | |
| 4304 For use on `remove-message-hook'." | |
| 4305 (when (and (not noninteractive) | |
| 4306 (funcall log-message-filter-function label message)) | |
| 4307 ;; Use save-excursion rather than save-current-buffer because we | |
| 4308 ;; change the value of point. | |
| 4309 (save-excursion | |
| 4310 (set-buffer (get-buffer-create " *Message-Log*")) | |
| 4311 (goto-char (point-max)) | |
| 4312 ;(insert (concat (upcase (symbol-name label)) ": " message "\n")) | |
| 4313 (let (extent) | |
| 4314 ;; Mark multiline message with an extent, which `view-lossage' | |
| 4315 ;; will recognize. | |
| 793 | 4316 (save-match-data |
| 4317 (when (string-match "\n" message) | |
| 4318 (setq extent (make-extent (point) (point))) | |
| 4319 (set-extent-properties extent '(end-open nil message-multiline t))) | |
| 4320 ) | |
| 428 | 4321 (insert message "\n") |
| 4322 (when extent | |
| 4323 (set-extent-property extent 'end-open t))) | |
| 4324 (when (> (point-max) (max log-message-max-size (point-min))) | |
| 4325 ;; Trim log to ~90% of max size. | |
| 4326 (goto-char (max (- (point-max) | |
| 4327 (truncate (* 0.9 log-message-max-size))) | |
| 4328 (point-min))) | |
| 4329 (forward-line 1) | |
| 4330 (delete-region (point-min) (point)))))) | |
| 4331 | |
| 4332 (defun message-displayed-p (&optional return-string frame) | |
| 4333 "Return a non-nil value if a message is presently displayed in the\n\ | |
| 4334 minibuffer's echo area. If optional argument RETURN-STRING is non-nil,\n\ | |
| 4335 return a string containing the message, otherwise just return t." | |
| 4336 ;; by definition, a message is displayed if the echo area buffer is | |
| 4337 ;; non-empty (see also echo_area_active()). It had better also | |
| 4338 ;; be the case that message-stack is nil exactly when the echo area | |
| 4339 ;; is non-empty. | |
| 4340 (let ((buffer (get-buffer " *Echo Area*"))) | |
| 4341 (and (< (point-min buffer) (point-max buffer)) | |
| 4342 (if return-string | |
| 4343 (buffer-substring nil nil buffer) | |
| 4344 t)))) | |
| 4345 | |
| 4346 ;;; Returns the string which remains in the echo area, or nil if none. | |
| 4347 ;;; If label is nil, the whole message stack is cleared. | |
| 4348 (defun clear-message (&optional label frame stdout-p no-restore) | |
| 4349 "Remove any message with the given LABEL from the message-stack, | |
| 4350 erasing it from the echo area if it's currently displayed there. | |
| 4351 If a message remains at the head of the message-stack and NO-RESTORE | |
| 4352 is nil, it will be displayed. The string which remains in the echo | |
| 4353 area will be returned, or nil if the message-stack is now empty. | |
| 4354 If LABEL is nil, the entire message-stack is cleared. | |
| 3929 | 4355 STDOUT-P is ignored, except for output to stream devices. For streams, |
| 4356 STDOUT-P non-nil directs output to stdout, otherwise to stderr. \(This is | |
| 4357 used only in case of restoring an earlier message from the stack.) | |
| 428 | 4358 |
| 4359 Unless you need the return value or you need to specify a label, | |
| 4360 you should just use (message nil)." | |
| 4361 (or frame (setq frame (selected-frame))) | |
| 4362 (let ((clear-stream (and message-stack (eq 'stream (frame-type frame))))) | |
| 4363 (remove-message label frame) | |
| 502 | 4364 (let ((inhibit-read-only t)) |
| 428 | 4365 (erase-buffer " *Echo Area*")) |
| 1703 | 4366 (if undisplay-echo-area-function |
| 4367 (funcall undisplay-echo-area-function)) | |
| 1346 | 4368 ;; If outputting to the terminal, make sure we clear the left side. |
| 4369 (when (or clear-stream | |
| 4370 (and (eq 'stream (frame-type frame)) | |
| 4371 (not (device-left-side-clear-p (frame-device frame))))) | |
| 4372 (set-device-clear-left-side (frame-device frame) nil) | |
| 4373 (send-string-to-terminal ?\n stdout-p)) | |
| 428 | 4374 (if no-restore |
| 4375 nil ; just preparing to put another msg up | |
| 4376 (if message-stack | |
| 4377 (let ((oldmsg (cdr (car message-stack)))) | |
| 4378 (raw-append-message oldmsg frame stdout-p) | |
| 4379 oldmsg) | |
| 4380 ;; #### Should we (redisplay-echo-area) here? Messes some | |
| 4381 ;; things up. | |
| 4382 nil)))) | |
| 4383 | |
| 4384 (defun remove-message (&optional label frame) | |
| 4385 ;; If label is nil, we want to remove all matching messages. | |
| 4386 ;; Must reverse the stack first to log them in the right order. | |
| 4387 (let ((log nil)) | |
| 4388 (while (and message-stack | |
| 4389 (or (null label) ; null label means clear whole stack | |
| 4390 (eq label (car (car message-stack))))) | |
| 4391 (push (car message-stack) log) | |
| 4392 (setq message-stack (cdr message-stack))) | |
| 4393 (let ((s message-stack)) | |
| 4394 (while (cdr s) | |
| 4395 (let ((msg (car (cdr s)))) | |
| 4396 (if (eq label (car msg)) | |
| 4397 (progn | |
| 4398 (push msg log) | |
| 4399 (setcdr s (cdr (cdr s)))) | |
| 4400 (setq s (cdr s)))))) | |
| 4401 ;; (possibly) log each removed message | |
| 4402 (while log | |
| 793 | 4403 (with-trapping-errors |
| 4404 :operation 'remove-message-hook | |
| 4405 :class 'message-log | |
| 4406 :error-form (progn | |
| 4407 (setq remove-message-hook nil) | |
| 4408 (let ((inhibit-read-only t)) | |
| 4409 (erase-buffer " *Echo Area*"))) | |
| 4410 :resignal t | |
| 4411 (run-hook-with-args 'remove-message-hook | |
| 4412 (car (car log)) (cdr (car log)))) | |
| 428 | 4413 (setq log (cdr log))))) |
| 4414 | |
| 4415 (defun append-message (label message &optional frame stdout-p) | |
| 3929 | 4416 "Add MESSAGE to the message-stack, or append it to the existing text. |
| 4417 LABEL is the class of the message. If it is the same as that of the top of | |
| 4418 the message stack, MESSAGE is appended to the existing message, otherwise | |
| 4419 it is pushed on the stack. | |
| 4420 FRAME determines the minibuffer window to send the message to. | |
| 4421 STDOUT-P is ignored, except for output to stream devices. For streams, | |
| 4422 STDOUT-P non-nil directs output to stdout, otherwise to stderr." | |
| 428 | 4423 (or frame (setq frame (selected-frame))) |
| 1346 | 4424 ;; If outputting to the terminal, make sure output from anyone else clears |
| 4425 ;; the left side first, but don't do it ourselves, otherwise we won't be | |
| 4426 ;; able to append to an existing message. | |
| 4427 (if (eq 'stream (frame-type frame)) | |
| 4428 (set-device-clear-left-side (frame-device frame) nil)) | |
| 428 | 4429 (let ((top (car message-stack))) |
| 4430 (if (eq label (car top)) | |
| 4431 (setcdr top (concat (cdr top) message)) | |
| 4432 (push (cons label message) message-stack))) | |
| 1346 | 4433 (raw-append-message message frame stdout-p) |
| 4434 (if (eq 'stream (frame-type frame)) | |
| 4435 (set-device-clear-left-side (frame-device frame) t))) | |
| 428 | 4436 |
| 3929 | 4437 ;; Really append the message to the echo area. No fiddling with |
| 428 | 4438 ;; message-stack. |
| 4439 (defun raw-append-message (message &optional frame stdout-p) | |
| 4440 (unless (equal message "") | |
| 502 | 4441 (let ((inhibit-read-only t)) |
| 3652 | 4442 (with-current-buffer " *Echo Area*" |
| 4443 (insert-string message) | |
| 3929 | 4444 ;; #### This needs to be conditional; cf discussion by Stefan Monnier |
| 4445 ;; et al on emacs-devel in mid-to-late April 2007. One problem is | |
| 4446 ;; there is no known good way to guess whether the user wants to have | |
| 4447 ;; the echo area height changed on him asynchronously, especially | |
| 4448 ;; after message display. | |
| 4449 ;; There is also a problem where Lisp backtraces get sent to the echo | |
| 4450 ;; area, thus maxing out the window height. Unfortunately, it doesn't | |
| 4451 ;; return to a reasonable size very quickly. | |
| 4452 ;; It is not clear that echo area and minibuffer behavior should be | |
| 4453 ;; linked as we do here. It's OK for now; at least this obeys the | |
| 4454 ;; minibuffer resizing conventions which seem a pretty good guess | |
| 4455 ;; at user preference. | |
| 4456 (when resize-minibuffer-mode | |
| 4457 ;; #### interesting idea, unbearable implementation | |
| 4458 ;; (fill-region (point-min) (point-max)) | |
| 4459 ;; | |
| 4460 ;; #### We'd like to be able to do something like | |
| 4461 ;; | |
| 4462 ;; (save-window-excursion | |
| 4463 ;; (select-window (minibuffer-window frame)) | |
| 4464 ;; (resize-minibuffer-window)))) | |
| 4465 ;; | |
| 4466 ;; but that can't work, because the echo area isn't a real window! | |
| 4467 ;; We should fix that, but this is an approximation, duplicating the | |
| 4468 ;; resize-minibuffer code. | |
| 4469 (let* ((mbw (minibuffer-window frame)) | |
| 4470 (height (window-height mbw)) | |
| 4471 (lines (ceiling (/ (- (point-max) (point-min)) | |
| 4472 (- (window-width mbw) 1.0))))) | |
| 4473 (and (numberp resize-minibuffer-window-max-height) | |
| 4474 (> resize-minibuffer-window-max-height 0) | |
| 4475 (setq lines (min lines | |
| 4476 resize-minibuffer-window-max-height))) | |
| 4477 (or (if resize-minibuffer-window-exactly | |
| 4478 (= lines height) | |
| 4479 (<= lines height)) | |
| 4480 (enlarge-window (- lines height) nil mbw))))) | |
| 428 | 4481 |
| 4482 ;; Don't redisplay the echo area if we are executing a macro. | |
| 4483 (if (not executing-kbd-macro) | |
| 3929 | 4484 ;; Conditionalizing on the device type in this way isn't clean, but |
| 4485 ;; neither is having a device method, as I originally implemented | |
| 4486 ;; it: all non-stream devices behave in the same way. Perhaps | |
| 4487 ;; the cleanest way is to make the concept of a "redisplayable" | |
| 4488 ;; device, which stream devices are not. Look into this more if | |
| 4489 ;; we ever create another non-redisplayable device type (e.g. | |
| 4490 ;; processes? printers?). | |
| 428 | 4491 (if (eq 'stream (frame-type frame)) |
| 4492 (send-string-to-terminal message stdout-p (frame-device frame)) | |
| 1703 | 4493 (funcall redisplay-echo-area-function)))))) |
| 428 | 4494 |
| 4495 (defun display-message (label message &optional frame stdout-p) | |
| 4496 "Print a one-line message at the bottom of the frame. First argument | |
| 4497 LABEL is an identifier for this message. MESSAGE is the string to display. | |
| 4498 Use `clear-message' to remove a labelled message. | |
| 3929 | 4499 STDOUT-P is ignored, except for output to stream devices. For streams, |
| 4500 STDOUT-P non-nil directs output to stdout, otherwise to stderr. | |
| 428 | 4501 |
| 4502 Here are some standard labels (those marked with `*' are not logged | |
| 4503 by default--see the `log-message-ignore-labels' variable): | |
| 4504 message default label used by the `message' function | |
| 4505 error default label used for reporting errors | |
| 4506 * progress progress indicators like \"Converting... 45%\" | |
| 4507 * prompt prompt-like messages like \"I-search: foo\" | |
| 4508 * command helper command messages like \"Mark set\" | |
| 4509 * no-log messages that should never be logged" | |
| 4510 (clear-message label frame stdout-p t) | |
| 4511 (append-message label message frame stdout-p)) | |
| 4512 | |
| 4513 (defun current-message (&optional frame) | |
| 4514 "Return the current message in the echo area, or nil. | |
| 4515 The FRAME argument is currently unused." | |
| 4516 (cdr (car message-stack))) | |
| 4517 | |
| 4518 ;;; may eventually be frame-dependent | |
| 4519 (defun current-message-label (&optional frame) | |
| 4520 (car (car message-stack))) | |
| 4521 | |
| 4522 (defun message (fmt &rest args) | |
| 4523 "Print a one-line message at the bottom of the frame. | |
| 4524 The arguments are the same as to `format'. | |
| 4525 | |
| 4526 If the only argument is nil, clear any existing message; let the | |
| 4527 minibuffer contents show." | |
| 4528 ;; questionable junk in the C code | |
| 4529 ;; (if (framep default-minibuffer-frame) | |
| 4530 ;; (make-frame-visible default-minibuffer-frame)) | |
| 4531 (if (and (null fmt) (null args)) | |
| 4532 (prog1 nil | |
| 4533 (clear-message nil)) | |
|
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|
4534 (let ((string (if args (apply 'format fmt args) fmt))) |
|
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|
4535 (display-message 'message string) |
|
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diff
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|
4536 string))) |
| 428 | 4537 |
| 4538 (defun lmessage (label fmt &rest args) | |
| 4539 "Print a one-line message at the bottom of the frame. | |
| 4540 First argument LABEL is an identifier for this message. The rest of the | |
| 4541 arguments are the same as to `format'. | |
| 4542 | |
| 4543 See `display-message' for a list of standard labels." | |
| 4544 (if (and (null fmt) (null args)) | |
| 4545 (prog1 nil | |
| 4546 (clear-message label nil)) | |
|
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diff
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|
4547 (let ((string (if args (apply 'format fmt args) fmt))) |
|
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|
4548 (display-message label string) |
|
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|
4549 string))) |
| 442 | 4550 |
| 4551 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 4552 ;; warning code ;; | |
| 4553 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 428 | 4554 |
| 4555 (defcustom log-warning-minimum-level 'info | |
| 4556 "Minimum level of warnings that should be logged. | |
| 4557 The warnings in levels below this are completely ignored, as if they never | |
| 4558 happened. | |
| 4559 | |
| 4560 The recognized warning levels, in decreasing order of priority, are | |
| 793 | 4561 'emergency, 'critical, 'error, 'warning, 'alert, 'notice, 'info, and |
| 428 | 4562 'debug. |
| 4563 | |
| 4564 See also `display-warning-minimum-level'. | |
| 4565 | |
| 4566 You can also control which warnings are displayed on a class-by-class | |
| 4567 basis. See `display-warning-suppressed-classes' and | |
| 793 | 4568 `log-warning-suppressed-classes'. |
| 4569 | |
| 3064 | 4570 For a description of the meaning of the levels, see `display-warning'." |
| 793 | 4571 :type '(choice (const emergency) (const critical) |
| 4572 (const error) (const warning) (const alert) (const notice) | |
| 428 | 4573 (const info) (const debug)) |
| 4574 :group 'warnings) | |
| 4575 | |
| 793 | 4576 (defcustom display-warning-minimum-level 'warning |
| 4577 "Minimum level of warnings that cause the warnings buffer to be displayed. | |
| 4578 Warnings at this level or higher will force the *Warnings* buffer, in which | |
| 4579 the warnings are logged, to be displayed. The warnings in levels below | |
| 4580 this, but at least as high as `log-warning-suppressed-classes', will be | |
| 4581 shown in the minibuffer. | |
| 428 | 4582 |
| 4583 The recognized warning levels, in decreasing order of priority, are | |
| 793 | 4584 'emergency, 'critical, 'error, 'warning, 'alert, 'notice, 'info, and |
| 428 | 4585 'debug. |
| 4586 | |
| 4587 See also `log-warning-minimum-level'. | |
| 4588 | |
| 4589 You can also control which warnings are displayed on a class-by-class | |
| 4590 basis. See `display-warning-suppressed-classes' and | |
| 793 | 4591 `log-warning-suppressed-classes'. |
| 4592 | |
| 3064 | 4593 For a description of the meaning of the levels, see `display-warning'." |
| 793 | 4594 :type '(choice (const emergency) (const critical) |
| 4595 (const error) (const warning) (const alert) (const notice) | |
| 428 | 4596 (const info) (const debug)) |
| 4597 :group 'warnings) | |
| 4598 | |
| 4599 (defvar log-warning-suppressed-classes nil | |
| 4600 "List of classes of warnings that shouldn't be logged or displayed. | |
| 4601 If any of the CLASS symbols associated with a warning is the same as | |
| 4602 any of the symbols listed here, the warning will be completely ignored, | |
| 4603 as it they never happened. | |
| 4604 | |
| 4605 NOTE: In most circumstances, you should *not* set this variable. | |
| 4606 Set `display-warning-suppressed-classes' instead. That way the suppressed | |
| 4607 warnings are not displayed but are still unobtrusively logged. | |
| 4608 | |
| 4609 See also `log-warning-minimum-level' and `display-warning-minimum-level'.") | |
| 4610 | |
| 4611 (defcustom display-warning-suppressed-classes nil | |
| 4612 "List of classes of warnings that shouldn't be displayed. | |
| 4613 If any of the CLASS symbols associated with a warning is the same as | |
| 4614 any of the symbols listed here, the warning will not be displayed. | |
| 4615 The warning will still logged in the *Warnings* buffer (unless also | |
| 4616 contained in `log-warning-suppressed-classes'), but the buffer will | |
| 4617 not be automatically popped up. | |
| 4618 | |
| 4619 See also `log-warning-minimum-level' and `display-warning-minimum-level'." | |
| 4620 :type '(repeat symbol) | |
| 4621 :group 'warnings) | |
| 4622 | |
| 4623 (defvar warning-count 0 | |
| 4624 "Count of the number of warning messages displayed so far.") | |
| 4625 | |
| 4626 (defconst warning-level-alist '((emergency . 8) | |
| 793 | 4627 (critical . 7) |
| 4628 (error . 6) | |
| 4629 (warning . 5) | |
| 4630 (alert . 4) | |
| 428 | 4631 (notice . 3) |
| 4632 (info . 2) | |
| 4633 (debug . 1))) | |
| 4634 | |
| 4635 (defun warning-level-p (level) | |
| 4636 "Non-nil if LEVEL specifies a warning level." | |
| 4637 (and (symbolp level) (assq level warning-level-alist))) | |
| 4638 | |
| 793 | 4639 (defun warning-level-< (level1 level2) |
| 4640 "Non-nil if warning level LEVEL1 is lower than LEVEL2." | |
| 4641 (check-argument-type 'warning-level-p level1) | |
| 4642 (check-argument-type 'warning-level-p level2) | |
| 4643 (< (cdr (assq level1 warning-level-alist)) | |
| 4644 (cdr (assq level2 warning-level-alist)))) | |
| 4645 | |
| 428 | 4646 ;; If you're interested in rewriting this function, be aware that it |
| 4647 ;; could be called at arbitrary points in a Lisp program (when a | |
| 4648 ;; built-in function wants to issue a warning, it will call out to | |
| 4649 ;; this function the next time some Lisp code is evaluated). Therefore, | |
| 4650 ;; this function *must* not permanently modify any global variables | |
| 4651 ;; (e.g. the current buffer) except those that specifically apply | |
| 4652 ;; to the warning system. | |
| 4653 | |
| 4654 (defvar before-init-deferred-warnings nil) | |
| 4655 | |
| 4656 (defun after-init-display-warnings () | |
| 4657 "Display warnings deferred till after the init file is run. | |
| 4658 Warnings that occur before then are deferred so that warning | |
| 4659 suppression in the .emacs file will be honored." | |
| 4660 (while before-init-deferred-warnings | |
| 4661 (apply 'display-warning (car before-init-deferred-warnings)) | |
| 4662 (setq before-init-deferred-warnings | |
| 4663 (cdr before-init-deferred-warnings)))) | |
| 4664 | |
| 4665 (add-hook 'after-init-hook 'after-init-display-warnings) | |
| 4666 | |
| 4667 (defun display-warning (class message &optional level) | |
| 4668 "Display a warning message. | |
| 793 | 4669 |
| 4670 \[This is the most basic entry point for displaying a warning. In practice, | |
| 4671 `lwarn' or `warn' are probably more convenient for most usages.] | |
| 4672 | |
| 4673 CLASS should be a symbol describing what sort of warning this is, such as | |
| 4674 `resource' or `key-mapping' -- this refers, more or less, to the module in | |
| 4675 which the warning is generated and serves to group warnings together with | |
| 4676 similar semantics. A list of such symbols is also accepted. | |
| 4677 | |
| 4678 Optional argument LEVEL can be used to specify a priority for the warning, | |
| 4679 other than default priority `warning'. The currently defined levels are, | |
| 4680 from highest to lowest: | |
| 4681 | |
| 4682 Level Meaning | |
| 4683 ----------------------------------------------------------------------------- | |
| 4684 emergency A fatal or near-fatal error. XEmacs is likely to crash. | |
| 4685 | |
| 4686 critical A serious, nonrecoverable problem has occurred -- e.g., the | |
| 4687 loss of a major subsystem, such as the crash of the X server | |
| 4688 when XEmacs is connected to the server. | |
| 4689 | |
| 4690 error A warning about a problematic condition that should be fixed, | |
| 4691 and XEmacs cannot work around it -- it causes a failure of an | |
| 4692 operation. (In most circumstances, consider just signalling | |
| 4693 an error). However, there is no permanent damage and the | |
| 4694 situation is ultimately recoverable. | |
| 4695 | |
| 4696 warning A warning about a problematic condition that should be fixed, | |
| 4697 but XEmacs can work around it. | |
| 4698 | |
| 4699 \[By default, warnings above here, as well as being logged, cause the | |
| 4700 *Warnings* buffer to be forcibly displayed, so that the warning (and | |
| 4701 previous warnings, since often a whole series of warnings are issued at | |
| 4702 once) can be examined in detail. Also, the annoying presence of the | |
| 4703 *Warnings* buffer will encourage people to go out and fix the | |
| 4704 problem. Warnings below here are displayed in the minibuffer as well as | |
| 4705 logged in the *Warnings* buffer. but the *Warnings* buffer will not be | |
| 4706 forcibly shown, as these represent conditions the user is not expected to | |
| 4707 fix.] | |
| 4708 | |
| 4709 alert A warning about a problematic condition that can't easily be | |
| 4710 fixed (often having to do with the external environment), and | |
| 4711 causes a failure. We don't force the *Warnings* buffer to be | |
| 4712 displayed because the purpose of doing that is to force the | |
| 4713 user to fix the problem so that the buffer no longer appears. | |
| 4714 When the problem is outside the user's control, forcing the | |
| 4715 buffer is pointless and annoying. | |
| 4716 | |
| 4717 notice A warning about a problematic condition that can't easily be | |
| 4718 fixed (often having to do with the external environment), | |
| 4719 but XEmacs can work around it. | |
| 4720 | |
| 4721 info Random info about something new or unexpected that was noticed; | |
| 4722 does not generally indicate a problem. | |
| 4723 | |
| 4724 \[By default, warnings below here are ignored entirely. All warnings above | |
| 4725 here are logged in the *Warnings* buffer.] | |
| 4726 | |
| 4727 debug A debugging notice; normally, not seen at all. | |
| 4728 | |
| 4729 NOTE: `specifier-instance' outputs warnings at level `debug' when errors occur | |
| 4730 in the process of trying to instantiate a particular instantiator. If you | |
| 4731 want to see these, change `log-warning-minimum-level'. | |
| 4732 | |
| 4733 There are two sets of variables. One controls the lower level (see the | |
| 4734 above diagram) -- i.e. ignored entirely. One controls the upper level -- | |
| 4735 whether the *Warnings* buffer is forcibly displayed. In particular: | |
| 4736 | |
| 4737 `display-warning-minimum-level' sets the upper level (see above), and | |
| 4738 `log-warning-minimum-level' the lower level. | |
| 4739 | |
| 4740 Individual classes can be suppressed. `log-warning-suppressed-classes' | |
| 4741 specifies a list of classes where warnings on those classes will be treated | |
| 4742 as if their level is below `log-warning-minimum-level' (i.e. they will be | |
| 4743 ignored completely), regardless of their actual level. Similarly, | |
| 4744 `display-warning-suppressed-classes' specifies a list of classes where | |
| 4745 warnings on those classes will be treated as if their level is below | |
| 4746 `display-warning-minimum-level', but above `log-warning-minimum-level' so | |
| 4747 long as they're not listed in that variable as well." | |
| 428 | 4748 (or level (setq level 'warning)) |
| 4749 (or (listp class) (setq class (list class))) | |
| 4750 (check-argument-type 'warning-level-p level) | |
|
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|
4751 (if (not init-file-loaded) |
| 428 | 4752 (push (list class message level) before-init-deferred-warnings) |
| 4753 (catch 'ignored | |
| 4754 (let ((display-p t) | |
| 4755 (level-num (cdr (assq level warning-level-alist)))) | |
| 4756 (if (< level-num (cdr (assq log-warning-minimum-level | |
| 4757 warning-level-alist))) | |
| 4758 (throw 'ignored nil)) | |
| 4759 (if (intersection class log-warning-suppressed-classes) | |
| 4760 (throw 'ignored nil)) | |
| 4761 | |
| 4762 (if (< level-num (cdr (assq display-warning-minimum-level | |
| 4763 warning-level-alist))) | |
| 4764 (setq display-p nil)) | |
| 4765 (if (and display-p | |
| 4766 (intersection class display-warning-suppressed-classes)) | |
| 4767 (setq display-p nil)) | |
| 4768 (let ((buffer (get-buffer-create "*Warnings*"))) | |
| 4769 (when display-p | |
| 4770 ;; The C code looks at display-warning-tick to determine | |
| 4771 ;; when it should call `display-warning-buffer'. Change it | |
| 4772 ;; to get the C code's attention. | |
| 4773 (incf display-warning-tick)) | |
| 4774 (with-current-buffer buffer | |
| 4775 (goto-char (point-max)) | |
| 4776 (incf warning-count) | |
| 793 | 4777 (let ((start (point))) |
| 4778 (princ (format "(%d) (%s/%s) " | |
| 4779 warning-count | |
| 4780 (mapconcat 'symbol-name class ",") | |
| 4781 level) | |
| 4782 buffer) | |
| 4783 (princ message buffer) | |
| 4784 (terpri buffer) | |
| 4785 (terpri buffer) | |
| 4786 (let ((ex (make-extent start (point)))) | |
| 4787 (set-extent-properties ex | |
| 4788 `(warning t warning-count ,warning-count | |
| 4789 warning-class ,class | |
| 4790 warning-level ,level))))) | |
| 4791 (message "%s: %s" (capitalize (symbol-name level)) message)))))) | |
| 428 | 4792 |
| 4793 (defun warn (&rest args) | |
| 793 | 4794 "Display a formatted warning message at default class and level. |
| 428 | 4795 The message is constructed by passing all args to `format'. The message |
| 4796 is placed in the *Warnings* buffer, which will be popped up at the next | |
| 793 | 4797 redisplay. The class of the warning is `general'; the level is `warning'. |
| 4798 | |
| 4799 See `display-warning' for more info." | |
| 4800 (display-warning 'default (apply 'format args))) | |
| 428 | 4801 |
| 4802 (defun lwarn (class level &rest args) | |
| 793 | 4803 "Display a formatted warning message at specified class and level. |
| 4804 The message is constructed by passing all args to `format'. The message | |
| 4805 is placed in the *Warnings* buffer, which will be popped up at the next | |
| 4806 redisplay. | |
| 4807 | |
| 4808 See `display-warning' for more info." | |
| 428 | 4809 (display-warning class (apply 'format args) |
| 4810 (or level 'warning))) | |
| 4811 | |
| 4812 (defvar warning-marker nil) | |
| 4813 | |
| 4814 ;; When this function is called by the C code, all non-local exits are | |
| 4815 ;; trapped and C-g is inhibited; therefore, it would be a very, very | |
| 4816 ;; bad idea for this function to get into an infinite loop. | |
| 4817 | |
| 4818 (defun display-warning-buffer () | |
| 4819 "Make the buffer that contains the warnings be visible. | |
| 4820 The C code calls this periodically, right before redisplay." | |
| 4821 (let ((buffer (get-buffer-create "*Warnings*"))) | |
| 4822 (when (or (not warning-marker) | |
| 4823 (not (eq (marker-buffer warning-marker) buffer))) | |
| 4824 (setq warning-marker (make-marker)) | |
| 4825 (set-marker warning-marker 1 buffer)) | |
| 4826 (if temp-buffer-show-function | |
| 442 | 4827 (progn |
| 4828 (funcall temp-buffer-show-function buffer) | |
| 4829 (mapc #'(lambda (win) (set-window-start win warning-marker)) | |
| 4830 (windows-of-buffer buffer nil t))) | |
| 428 | 4831 (set-window-start (display-buffer buffer) warning-marker)) |
| 4832 (set-marker warning-marker (point-max buffer) buffer))) | |
| 4833 | |
| 442 | 4834 |
| 4835 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 4836 ;; misc junk ;; | |
| 4837 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 4838 | |
| 428 | 4839 (defun emacs-name () |
| 4840 "Return the printable name of this instance of Emacs." | |
|
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|
4841 (cond ((featurep 'xemacs) "XEmacs") |
| 428 | 4842 (t "Emacs"))) |
| 4843 | |
|
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|
4844 (defun debug-print (&rest args) |
|
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|
4845 "Send a string to the debugging output. |
| 793 | 4846 If the first argument is a string, it is considered to be a format |
| 4847 specifier if there are sufficient numbers of other args, and the string is | |
| 4848 formatted using (apply #'format args). Otherwise, each argument is printed | |
| 4849 individually in a numbered list." | |
| 4850 (let ((standard-output 'external-debugging-output) | |
| 4851 (fmt (condition-case nil | |
| 4852 (and (stringp (first args)) | |
| 4853 (apply #'format args)) | |
| 4854 (error nil)))) | |
| 4855 (if fmt | |
| 4856 (progn | |
| 3064 | 4857 (princ (apply #'format args)) |
| 793 | 4858 (terpri)) |
| 4859 (princ "--> ") | |
| 4860 (let ((i 1)) | |
| 4861 (dolist (sgra args) | |
| 4862 (if (> i 1) (princ " ")) | |
| 4863 (princ (format "%d. " i)) | |
| 4864 (prin1 sgra) | |
| 4865 (incf i)) | |
| 4866 (terpri))))) | |
| 4867 | |
| 4868 (defun debug-backtrace () | |
| 4869 "Send a backtrace to the debugging output." | |
| 4870 (let ((standard-output 'external-debugging-output)) | |
| 4871 (backtrace nil t) | |
| 4872 (terpri))) | |
| 444 | 4873 |
| 428 | 4874 ;;; simple.el ends here |