Mercurial > hg > xemacs-beta
annotate lisp/simple.el @ 5576:071b810ceb18
Declare labels as line where appropriate; use #'labels, not #'flet, tests.
lisp/ChangeLog addition:
2011-10-03 Aidan Kehoe <kehoea@parhasard.net>
* simple.el (handle-pre-motion-command-current-command-is-motion):
Implement #'keysyms-equal with #'labels + (declare (inline ...)),
instead of abusing macrolet to the same end.
* specifier.el (let-specifier):
* mule/mule-cmds.el (describe-language-environment):
* mule/mule-cmds.el (set-language-environment-coding-systems):
* mule/mule-x-init.el (x-use-halfwidth-roman-font):
* faces.el (Face-frob-property):
* keymap.el (key-sequence-list-description):
* lisp-mode.el (construct-lisp-mode-menu):
* loadhist.el (unload-feature):
* mouse.el (default-mouse-track-check-for-activation):
Declare various labels inline in dumped files when that reduces
the size of the dumped image. Declaring labels inline is normally
only worthwhile for inner loops and so on, but it's reasonable
exercise of the related code to have these changes in core.
tests/ChangeLog addition:
2011-10-03 Aidan Kehoe <kehoea@parhasard.net>
* automated/case-tests.el (uni-mappings):
* automated/database-tests.el (delete-database-files):
* automated/hash-table-tests.el (iterations):
* automated/lisp-tests.el (test1):
* automated/lisp-tests.el (a):
* automated/lisp-tests.el (cl-floor):
* automated/lisp-tests.el (foo):
* automated/lisp-tests.el (list-nreverse):
* automated/lisp-tests.el (needs-lexical-context):
* automated/mule-tests.el (featurep):
* automated/os-tests.el (original-string):
* automated/os-tests.el (with):
* automated/symbol-tests.el (check-weak-list-unique):
Replace #'flet with #'labels where appropriate in these tests,
following my own advice on style in the docstrings of those
functions.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Mon, 03 Oct 2011 20:16:14 +0100 |
| parents | 3bc58dc9d688 |
| children | cc6f0266bc36 |
| 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 | |
| 372 (defun back-to-indentation () | |
| 373 "Move point to the first non-whitespace character on this line." | |
| 374 ;; XEmacs change | |
| 375 (interactive "_") | |
| 376 (beginning-of-line 1) | |
| 377 (skip-chars-forward " \t")) | |
| 378 | |
| 379 (defun newline-and-indent () | |
| 380 "Insert a newline, then indent according to major mode. | |
| 381 Indentation is done using the value of `indent-line-function'. | |
| 382 In programming language modes, this is the same as TAB. | |
| 383 In some text modes, where TAB inserts a tab, this command indents to the | |
| 384 column specified by the function `current-left-margin'." | |
| 385 (interactive "*") | |
| 386 (delete-region (point) (progn (skip-chars-backward " \t") (point))) | |
| 387 (newline) | |
| 388 (indent-according-to-mode)) | |
| 389 | |
| 390 (defun reindent-then-newline-and-indent () | |
| 391 "Reindent current line, insert newline, then indent the new line. | |
| 392 Indentation of both lines is done according to the current major mode, | |
| 393 which means calling the current value of `indent-line-function'. | |
| 394 In programming language modes, this is the same as TAB. | |
| 395 In some text modes, where TAB inserts a tab, this indents to the | |
| 396 column specified by the function `current-left-margin'." | |
| 397 (interactive "*") | |
| 398 (save-excursion | |
| 399 (delete-region (point) (progn (skip-chars-backward " \t") (point))) | |
| 400 (indent-according-to-mode)) | |
| 401 (newline) | |
| 402 (indent-according-to-mode)) | |
| 403 | |
| 404 ;; Internal subroutine of delete-char | |
| 405 (defun kill-forward-chars (arg) | |
| 406 (if (listp arg) (setq arg (car arg))) | |
| 407 (if (eq arg '-) (setq arg -1)) | |
| 408 (kill-region (point) (+ (point) arg))) | |
| 409 | |
| 410 ;; Internal subroutine of backward-delete-char | |
| 411 (defun kill-backward-chars (arg) | |
| 412 (if (listp arg) (setq arg (car arg))) | |
| 413 (if (eq arg '-) (setq arg -1)) | |
| 414 (kill-region (point) (- (point) arg))) | |
| 415 | |
| 416 (defun backward-delete-char-untabify (arg &optional killp) | |
| 417 "Delete characters backward, changing tabs into spaces. | |
| 418 Delete ARG chars, and kill (save in kill ring) if KILLP is non-nil. | |
| 419 Interactively, ARG is the prefix arg (default 1) | |
| 420 and KILLP is t if a prefix arg was specified." | |
| 421 (interactive "*p\nP") | |
| 422 (let ((count arg)) | |
| 423 (save-excursion | |
| 424 (while (and (> count 0) (not (bobp))) | |
| 425 (if (eq (char-before (point)) ?\t) ; XEmacs | |
| 426 (let ((col (current-column))) | |
| 446 | 427 (backward-char 1) |
| 428 | 428 (setq col (- col (current-column))) |
| 429 (insert-char ?\ col) | |
| 430 (delete-char 1))) | |
| 446 | 431 (backward-char 1) |
| 428 | 432 (setq count (1- count))))) |
| 433 (delete-backward-char arg killp) | |
| 434 ;; XEmacs: In overwrite mode, back over columns while clearing them out, | |
| 435 ;; unless at end of line. | |
| 436 (and overwrite-mode (not (eolp)) | |
| 437 (save-excursion (insert-char ?\ arg)))) | |
| 438 | |
| 439 (defcustom delete-key-deletes-forward t | |
| 440 "*If non-nil, the DEL key will erase one character forwards. | |
| 441 If nil, the DEL key will erase one character backwards." | |
| 442 :type 'boolean | |
| 443 :group 'editing-basics) | |
| 444 | |
| 446 | 445 (defcustom backward-delete-function 'delete-backward-char |
| 428 | 446 "*Function called to delete backwards on a delete keypress. |
| 447 If `delete-key-deletes-forward' is nil, `backward-or-forward-delete-char' | |
| 448 calls this function to erase one character backwards. Default value | |
| 446 | 449 is `delete-backward-char', with `backward-delete-char-untabify' being a |
| 428 | 450 popular alternate setting." |
| 451 :type 'function | |
| 452 :group 'editing-basics) | |
| 453 | |
| 454 ;; Trash me, baby. | |
| 455 (defsubst delete-forward-p () | |
| 456 (and delete-key-deletes-forward | |
| 457 (or (not (eq (device-type) 'x)) | |
| 502 | 458 (declare-fboundp |
| 459 (x-keysym-on-keyboard-sans-modifiers-p 'backspace))))) | |
| 428 | 460 |
| 461 (defun backward-or-forward-delete-char (arg) | |
| 462 "Delete either one character backwards or one character forwards. | |
| 463 Controlled by the state of `delete-key-deletes-forward' and whether the | |
| 464 BackSpace keysym even exists on your keyboard. If you don't have a | |
| 465 BackSpace keysym, the delete key should always delete one character | |
| 466 backwards." | |
| 467 (interactive "*p") | |
| 468 (if (delete-forward-p) | |
| 469 (delete-char arg) | |
| 470 (funcall backward-delete-function arg))) | |
| 471 | |
| 472 (defun backward-or-forward-kill-word (arg) | |
| 473 "Delete either one word backwards or one word forwards. | |
| 474 Controlled by the state of `delete-key-deletes-forward' and whether the | |
| 475 BackSpace keysym even exists on your keyboard. If you don't have a | |
| 476 BackSpace keysym, the delete key should always delete one character | |
| 477 backwards." | |
| 478 (interactive "*p") | |
| 479 (if (delete-forward-p) | |
| 480 (kill-word arg) | |
| 481 (backward-kill-word arg))) | |
| 482 | |
| 483 (defun backward-or-forward-kill-sentence (arg) | |
| 484 "Delete either one sentence backwards or one sentence forwards. | |
| 485 Controlled by the state of `delete-key-deletes-forward' and whether the | |
| 486 BackSpace keysym even exists on your keyboard. If you don't have a | |
| 487 BackSpace keysym, the delete key should always delete one character | |
| 488 backwards." | |
| 489 (interactive "*P") | |
| 490 (if (delete-forward-p) | |
| 491 (kill-sentence arg) | |
| 492 (backward-kill-sentence (prefix-numeric-value arg)))) | |
| 493 | |
| 494 (defun backward-or-forward-kill-sexp (arg) | |
| 495 "Delete either one sexpr backwards or one sexpr forwards. | |
| 496 Controlled by the state of `delete-key-deletes-forward' and whether the | |
| 497 BackSpace keysym even exists on your keyboard. If you don't have a | |
| 498 BackSpace keysym, the delete key should always delete one character | |
| 499 backwards." | |
| 500 (interactive "*p") | |
| 501 (if (delete-forward-p) | |
| 502 (kill-sexp arg) | |
| 503 (backward-kill-sexp arg))) | |
| 504 | |
| 505 (defun zap-to-char (arg char) | |
| 506 "Kill up to and including ARG'th occurrence of CHAR. | |
| 507 Goes backward if ARG is negative; error if CHAR not found." | |
| 508 (interactive "*p\ncZap to char: ") | |
| 509 (kill-region (point) (with-interactive-search-caps-disable-folding | |
| 510 (char-to-string char) nil | |
| 511 (search-forward (char-to-string char) nil nil arg) | |
| 512 (point)))) | |
| 513 | |
| 514 (defun zap-up-to-char (arg char) | |
| 515 "Kill up to ARG'th occurrence of CHAR. | |
| 516 Goes backward if ARG is negative; error if CHAR not found." | |
| 517 (interactive "*p\ncZap up to char: ") | |
| 518 (kill-region (point) (with-interactive-search-caps-disable-folding | |
| 519 (char-to-string char) nil | |
| 520 (search-forward (char-to-string char) nil nil arg) | |
| 521 (goto-char (if (> arg 0) (1- (point)) (1+ (point)))) | |
| 522 (point)))) | |
| 523 | |
| 524 (defun beginning-of-buffer (&optional arg) | |
| 525 "Move point to the beginning of the buffer; leave mark at previous position. | |
| 526 With arg N, put point N/10 of the way from the beginning. | |
| 527 | |
| 528 If the buffer is narrowed, this command uses the beginning and size | |
| 529 of the accessible part of the buffer. | |
| 530 | |
| 462 | 531 The characters that are moved over may be added to the current selection |
| 532 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 533 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 534 the documentation for this variable for more details. | |
| 535 | |
| 428 | 536 Don't use this command in Lisp programs! |
| 537 \(goto-char (point-min)) is faster and avoids clobbering the mark." | |
| 538 ;; XEmacs change | |
| 539 (interactive "_P") | |
| 540 (push-mark) | |
| 541 (let ((size (- (point-max) (point-min)))) | |
| 542 (goto-char (if arg | |
| 543 (+ (point-min) | |
| 544 (if (> size 10000) | |
| 545 ;; Avoid overflow for large buffer sizes! | |
| 546 (* (prefix-numeric-value arg) | |
| 547 (/ size 10)) | |
| 548 (/ (+ 10 (* size (prefix-numeric-value arg))) 10))) | |
| 549 (point-min)))) | |
| 550 (if arg (forward-line 1))) | |
| 551 | |
| 552 (defun end-of-buffer (&optional arg) | |
| 553 "Move point to the end of the buffer; leave mark at previous position. | |
| 554 With arg N, put point N/10 of the way from the end. | |
| 555 | |
| 556 If the buffer is narrowed, this command uses the beginning and size | |
| 557 of the accessible part of the buffer. | |
| 558 | |
| 462 | 559 The characters that are moved over may be added to the current selection |
| 560 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 561 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 562 the documentation for this variable for more details. | |
| 563 | |
| 428 | 564 Don't use this command in Lisp programs! |
| 565 \(goto-char (point-max)) is faster and avoids clobbering the mark." | |
| 566 ;; XEmacs change | |
| 567 (interactive "_P") | |
| 568 (push-mark) | |
| 569 ;; XEmacs changes here. | |
| 570 (let ((scroll-to-end (not (pos-visible-in-window-p (point-max)))) | |
| 571 (size (- (point-max) (point-min)))) | |
| 572 (goto-char (if arg | |
| 573 (- (point-max) | |
| 574 (if (> size 10000) | |
| 575 ;; Avoid overflow for large buffer sizes! | |
| 576 (* (prefix-numeric-value arg) | |
| 577 (/ size 10)) | |
| 578 (/ (* size (prefix-numeric-value arg)) 10))) | |
| 579 (point-max))) | |
| 580 (cond (arg | |
| 581 ;; If we went to a place in the middle of the buffer, | |
| 582 ;; adjust it to the beginning of a line. | |
| 583 (forward-line 1)) | |
| 584 ;; XEmacs change | |
| 585 (scroll-to-end | |
| 586 ;; If the end of the buffer is not already on the screen, | |
| 587 ;; then scroll specially to put it near, but not at, the bottom. | |
| 588 (recenter -3))))) | |
| 589 | |
| 590 ;; XEmacs (not in FSF) | |
| 591 (defun mark-beginning-of-buffer (&optional arg) | |
| 592 "Push a mark at the beginning of the buffer; leave point where it is. | |
| 593 With arg N, push mark N/10 of the way from the true beginning." | |
| 594 (interactive "P") | |
| 595 (push-mark (if arg | |
| 596 (if (> (buffer-size) 10000) | |
| 597 ;; Avoid overflow for large buffer sizes! | |
| 598 (* (prefix-numeric-value arg) | |
| 599 (/ (buffer-size) 10)) | |
| 600 (/ (+ 10 (* (buffer-size) (prefix-numeric-value arg))) 10)) | |
| 601 (point-min)) | |
| 602 nil | |
| 603 t)) | |
| 604 (define-function 'mark-bob 'mark-beginning-of-buffer) | |
| 605 | |
| 606 ;; XEmacs (not in FSF) | |
| 607 (defun mark-end-of-buffer (&optional arg) | |
| 608 "Push a mark at the end of the buffer; leave point where it is. | |
| 609 With arg N, push mark N/10 of the way from the true end." | |
| 610 (interactive "P") | |
| 611 (push-mark (if arg | |
| 612 (- (1+ (buffer-size)) | |
| 613 (if (> (buffer-size) 10000) | |
| 614 ;; Avoid overflow for large buffer sizes! | |
| 615 (* (prefix-numeric-value arg) | |
| 616 (/ (buffer-size) 10)) | |
| 617 (/ (* (buffer-size) (prefix-numeric-value arg)) 10))) | |
| 618 (point-max)) | |
| 619 nil | |
| 620 t)) | |
| 621 (define-function 'mark-eob 'mark-end-of-buffer) | |
| 622 | |
| 623 (defun mark-whole-buffer () | |
| 624 "Put point at beginning and mark at end of buffer. | |
| 625 You probably should not use this function in Lisp programs; | |
| 626 it is usually a mistake for a Lisp function to use any subroutine | |
| 627 that uses or sets the mark." | |
| 628 (interactive) | |
| 629 (push-mark (point)) | |
| 630 (push-mark (point-max) nil t) | |
| 631 (goto-char (point-min))) | |
| 632 | |
| 633 ;; XEmacs | |
| 634 (defun eval-current-buffer (&optional printflag) | |
| 635 "Evaluate the current buffer as Lisp code. | |
| 636 Programs can pass argument PRINTFLAG which controls printing of output: | |
| 637 nil means discard it; anything else is stream for print." | |
| 638 (interactive) | |
| 639 (eval-buffer (current-buffer) printflag)) | |
| 640 | |
| 641 ;; XEmacs | |
| 642 (defun count-words-buffer (&optional buffer) | |
| 643 "Print the number of words in BUFFER. | |
| 644 If called noninteractively, the value is returned rather than printed. | |
| 645 BUFFER defaults to the current buffer." | |
| 646 (interactive) | |
| 647 (let ((words (count-words-region (point-min) (point-max) buffer))) | |
| 648 (when (interactive-p) | |
| 649 (message "Buffer has %d words" words)) | |
| 650 words)) | |
| 651 | |
| 652 ;; XEmacs | |
| 653 (defun count-words-region (start end &optional buffer) | |
| 654 "Print the number of words in region between START and END in BUFFER. | |
| 655 If called noninteractively, the value is returned rather than printed. | |
| 656 BUFFER defaults to the current buffer." | |
| 657 (interactive "_r") | |
| 658 (save-excursion | |
| 659 (set-buffer (or buffer (current-buffer))) | |
| 660 (let ((words 0)) | |
| 661 (goto-char start) | |
| 662 (while (< (point) end) | |
| 663 (when (forward-word 1) | |
| 664 (incf words))) | |
| 665 (when (interactive-p) | |
| 666 (message "Region has %d words" words)) | |
| 667 words))) | |
| 668 | |
| 669 (defun count-lines-region (start end) | |
| 670 "Print number of lines and characters in the region." | |
| 671 ;; XEmacs change | |
| 672 (interactive "_r") | |
| 673 (message "Region has %d lines, %d characters" | |
| 674 (count-lines start end) (- end start))) | |
| 675 | |
| 676 ;; XEmacs | |
| 677 (defun count-lines-buffer (&optional buffer) | |
| 678 "Print number of lines and characters in BUFFER." | |
| 679 (interactive) | |
| 680 (with-current-buffer (or buffer (current-buffer)) | |
| 681 (let ((cnt (count-lines (point-min) (point-max)))) | |
| 682 (message "Buffer has %d lines, %d characters" | |
| 683 cnt (- (point-max) (point-min))) | |
| 684 cnt))) | |
| 685 | |
| 686 ;;; Modified by Bob Weiner, 8/24/95, to print narrowed line number also. | |
| 687 ;;; Expanded by Bob Weiner, BeOpen, on 02/12/1997 | |
| 688 (defun what-line () | |
| 689 "Print the following variants of the line number of point: | |
| 690 Region line - displayed line within the active region | |
| 691 Collapsed line - includes only selectively displayed lines; | |
| 692 Buffer line - physical line in the buffer; | |
| 693 Narrowed line - line number from the start of the buffer narrowing." | |
| 694 ;; XEmacs change | |
| 695 (interactive "_") | |
| 696 (let ((opoint (point)) start) | |
| 697 (save-excursion | |
| 698 (save-restriction | |
| 699 (if (region-active-p) | |
| 700 (goto-char (region-beginning)) | |
| 701 (goto-char (point-min))) | |
| 702 (widen) | |
| 703 (beginning-of-line) | |
| 704 (setq start (point)) | |
| 705 (goto-char opoint) | |
| 706 (beginning-of-line) | |
| 707 (let* ((buffer-line (1+ (count-lines 1 (point)))) | |
| 708 (narrowed-p (or (/= start 1) | |
| 709 (/= (point-max) (1+ (buffer-size))))) | |
| 710 (narrowed-line (if narrowed-p (1+ (count-lines start (point))))) | |
| 711 (selective-line (if selective-display | |
| 712 (1+ (count-lines start (point) t)))) | |
| 713 (region-line (if (region-active-p) | |
| 714 (1+ (count-lines start (point) selective-display))))) | |
| 715 (cond (region-line | |
| 716 (message "Region line %d; Buffer line %d" | |
| 717 region-line buffer-line)) | |
| 718 ((and narrowed-p selective-line (/= selective-line narrowed-line)) | |
| 719 ;; buffer narrowed and some lines selectively displayed | |
| 720 (message "Collapsed line %d; Buffer line %d; Narrowed line %d" | |
| 721 selective-line buffer-line narrowed-line)) | |
| 722 (narrowed-p | |
| 723 ;; buffer narrowed | |
| 724 (message "Buffer line %d; Narrowed line %d" | |
| 725 buffer-line narrowed-line)) | |
| 726 ((and selective-line (/= selective-line buffer-line)) | |
| 727 ;; some lines selectively displayed | |
| 728 (message "Collapsed line %d; Buffer line %d" | |
| 729 selective-line buffer-line)) | |
| 730 (t | |
| 731 ;; give a basic line count | |
| 732 (message "Line %d" buffer-line))))))) | |
| 733 (setq zmacs-region-stays t)) | |
| 734 | |
| 442 | 735 ;; new in XEmacs 21.2 (not in FSF). |
| 736 (defun line-number (&optional pos respect-narrowing) | |
| 737 "Return the line number of POS (defaults to point). | |
| 738 If RESPECT-NARROWING is non-nil, then the narrowed line number is returned; | |
| 739 otherwise, the absolute line number is returned. The returned line can always | |
| 740 be given to `goto-line' to get back to the current line." | |
| 741 (if (and pos (/= pos (point))) | |
| 742 (save-excursion | |
| 743 (goto-char pos) | |
| 744 (line-number nil respect-narrowing)) | |
| 745 (1+ (count-lines (if respect-narrowing (point-min) 1) (point-at-bol))))) | |
| 746 | |
| 3000 | 747 ;; FSF 22.0.50.1 (CVS) version of above. |
| 748 (defun line-number-at-pos (&optional pos) | |
| 749 (line-number pos t)) | |
| 750 | |
| 428 | 751 (defun count-lines (start end &optional ignore-invisible-lines-flag) |
| 752 "Return number of lines between START and END. | |
| 753 This is usually the number of newlines between them, | |
| 754 but can be one more if START is not equal to END | |
| 755 and the greater of them is not at the start of a line. | |
| 756 | |
| 757 With optional IGNORE-INVISIBLE-LINES-FLAG non-nil, lines collapsed with | |
| 442 | 758 selective-display are excluded from the line count. |
| 759 | |
| 760 NOTE: The expression to return the current line number is not obvious: | |
| 761 | |
| 3767 | 762 \(1+ \(count-lines 1 \(point-at-bol))) |
| 442 | 763 |
| 764 See also `line-number'." | |
| 428 | 765 (save-excursion |
| 766 (save-restriction | |
| 767 (narrow-to-region start end) | |
| 768 (goto-char (point-min)) | |
| 769 (if (and (not ignore-invisible-lines-flag) (eq selective-display t)) | |
| 770 (save-match-data | |
| 771 (let ((done 0)) | |
| 772 (while (re-search-forward "[\n\C-m]" nil t 40) | |
| 773 (setq done (+ 40 done))) | |
| 774 (while (re-search-forward "[\n\C-m]" nil t 1) | |
| 775 (setq done (+ 1 done))) | |
| 776 (goto-char (point-max)) | |
| 777 (if (and (/= start end) | |
| 778 (not (bolp))) | |
| 779 (1+ done) | |
| 780 done))) | |
| 781 (- (buffer-size) (forward-line (buffer-size))))))) | |
| 782 | |
|
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783 (defun what-cursor-position (&optional detail) |
| 3724 | 784 "Print info on cursor position (on screen and within buffer). |
| 785 Also describe the character after point, giving its UCS code point and Mule | |
| 786 charset and codes; for ASCII characters, give its code in octal, decimal and | |
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787 hex. |
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788 |
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789 With prefix argument, show extended details about the character in a |
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790 separate buffer. See also the command `describe-char'." |
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791 ;; XEmacs change "_" |
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792 (interactive "_P") |
| 428 | 793 (let* ((char (char-after (point))) ; XEmacs |
| 794 (beg (point-min)) | |
| 795 (end (point-max)) | |
| 796 (pos (point)) | |
| 797 (total (buffer-size)) | |
| 798 (percent (if (> total 50000) | |
| 799 ;; Avoid overflow from multiplying by 100! | |
| 800 (/ (+ (/ total 200) (1- pos)) (max (/ total 100) 1)) | |
| 801 (/ (+ (/ total 2) (* 100 (1- pos))) (max total 1)))) | |
| 802 (hscroll (if (= (window-hscroll) 0) | |
| 803 "" | |
| 804 (format " Hscroll=%d" (window-hscroll)))) | |
| 3724 | 805 (col (+ (current-column) (if column-number-start-at-one 1 0))) |
| 806 (unicode (and char (encode-char char 'ucs))) | |
| 807 (unicode-string (and unicode (natnump unicode) | |
| 808 (format (if (> unicode #xFFFF) "U+%06X" "U+%04X") | |
| 809 unicode))) | |
| 810 (narrowed-details (if (or (/= beg 1) (/= end (1+ total))) | |
| 811 (format " <%d - %d>" beg end) | |
| 812 ""))) | |
| 813 | |
| 428 | 814 (if (= pos end) |
| 3724 | 815 (message "point=%d of %d(%d%%)%s column %d %s" |
| 816 pos total percent narrowed-details col hscroll) | |
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817 (if detail |
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818 (describe-char (point))) |
| 3724 | 819 ;; XEmacs: don't use single-key-description, treat non-ASCII |
| 820 ;; characters differently. | |
| 821 (if (< char ?\x80) | |
| 822 (message "Char: %s (0%o, %d, %x) point=%d of %d(%d%%)%s column %d %s" | |
| 823 (text-char-description char) char char char pos total | |
| 824 percent narrowed-details col hscroll) | |
| 825 (message "Char: %s (%s %s) point=%d of %d(%d%%)%s column %d %s" | |
| 826 (text-char-description char) unicode-string | |
| 3767 | 827 (mapconcat (lambda (arg) (format "%S" arg)) |
| 828 (split-char char) " ") | |
| 3724 | 829 pos total |
| 830 percent narrowed-details col hscroll))))) | |
| 428 | 831 |
| 832 (defun fundamental-mode () | |
| 833 "Major mode not specialized for anything in particular. | |
| 834 Other major modes are defined by comparison with this one." | |
| 835 (interactive) | |
| 836 (kill-all-local-variables)) | |
| 837 | |
| 838 ;; XEmacs the following are declared elsewhere | |
| 839 ;(defvar read-expression-map (cons 'keymap minibuffer-local-map) | |
| 840 ; "Minibuffer keymap used for reading Lisp expressions.") | |
| 841 ;(define-key read-expression-map "\M-\t" 'lisp-complete-symbol) | |
| 842 | |
| 843 ;(put 'eval-expression 'disabled t) | |
| 844 | |
| 845 ;(defvar read-expression-history nil) | |
| 846 | |
| 847 ;; We define this, rather than making `eval' interactive, | |
| 848 ;; for the sake of completion of names like eval-region, eval-current-buffer. | |
| 849 (defun eval-expression (expression &optional eval-expression-insert-value) | |
| 850 "Evaluate EXPRESSION and print value in minibuffer. | |
| 851 Value is also consed on to front of the variable `values'. | |
| 852 With prefix argument, insert the result to the current buffer." | |
| 853 ;(interactive "xEval: ") | |
| 854 (interactive | |
| 855 (list (read-from-minibuffer "Eval: " | |
| 856 nil read-expression-map t | |
| 857 'read-expression-history) | |
| 858 current-prefix-arg)) | |
| 859 (setq values (cons (eval expression) values)) | |
| 860 (prin1 (car values) | |
| 861 (if eval-expression-insert-value (current-buffer) t))) | |
| 862 | |
| 863 ;; XEmacs -- extra parameter (variant, but equivalent logic) | |
| 444 | 864 (defun edit-and-eval-command (prompt form &optional history) |
| 865 "Prompting with PROMPT, let user edit FORM and eval result. | |
| 866 FORM is a Lisp expression. Let user edit that expression in | |
| 428 | 867 the minibuffer, then read and evaluate the result." |
| 444 | 868 (let ((form (read-expression prompt |
| 869 ;; first try to format the thing readably; | |
| 870 ;; and if that fails, print it normally. | |
| 871 (condition-case () | |
| 872 (let ((print-readably t)) | |
| 873 (prin1-to-string form)) | |
| 874 (error (prin1-to-string form))) | |
| 875 (or history '(command-history . 1))))) | |
| 428 | 876 (or history (setq history 'command-history)) |
| 877 (if (consp history) | |
| 878 (setq history (car history))) | |
| 879 (if (eq history t) | |
| 880 nil | |
| 444 | 881 ;; If form was added to the history as a string, |
| 428 | 882 ;; get rid of that. We want only evallable expressions there. |
| 883 (if (stringp (car (symbol-value history))) | |
| 884 (set history (cdr (symbol-value history)))) | |
| 885 | |
| 444 | 886 ;; If form to be redone does not match front of history, |
| 428 | 887 ;; add it to the history. |
| 444 | 888 (or (equal form (car (symbol-value history))) |
| 889 (set history (cons form (symbol-value history))))) | |
| 890 (eval form))) | |
| 428 | 891 |
| 892 (defun repeat-complex-command (arg) | |
| 893 "Edit and re-evaluate last complex command, or ARGth from last. | |
| 894 A complex command is one which used the minibuffer. | |
| 895 The command is placed in the minibuffer as a Lisp form for editing. | |
| 896 The result is executed, repeating the command as changed. | |
| 897 If the command has been changed or is not the most recent previous command | |
| 898 it is added to the front of the command history. | |
| 899 You can use the minibuffer history commands \\<minibuffer-local-map>\\[next-history-element] and \\[previous-history-element] | |
| 900 to get different commands to edit and resubmit." | |
| 901 (interactive "p") | |
| 902 ;; XEmacs: It looks like our version is better -sb | |
| 903 (let ((print-level nil)) | |
| 904 (edit-and-eval-command "Redo: " | |
| 905 (or (nth (1- arg) command-history) | |
| 906 (error "")) | |
| 907 (cons 'command-history arg)))) | |
| 908 | |
| 909 ;; XEmacs: Functions moved to minibuf.el | |
| 910 ;; previous-matching-history-element | |
| 911 ;; next-matching-history-element | |
| 912 ;; next-history-element | |
| 913 ;; previous-history-element | |
| 914 ;; next-complete-history-element | |
| 915 ;; previous-complete-history-element | |
| 916 | |
| 3361 | 917 (defun goto-line (line &optional buffer) |
| 918 "Goto line LINE, counting from line 1 at beginning of BUFFER." | |
| 428 | 919 (interactive "NGoto line: ") |
| 444 | 920 (setq line (prefix-numeric-value line)) |
| 3361 | 921 (if buffer |
| 922 (let ((window (get-buffer-window buffer))) | |
| 923 (if window (select-window window) | |
| 924 (switch-to-buffer-other-window buffer)))) | |
| 428 | 925 (save-restriction |
| 926 (widen) | |
| 927 (goto-char 1) | |
| 928 (if (eq selective-display t) | |
| 444 | 929 (re-search-forward "[\n\C-m]" nil 'end (1- line)) |
| 930 (forward-line (1- line))))) | |
| 428 | 931 |
| 771 | 932 ;[Put this on C-x u, so we can force that rather than C-_ into startup msg] |
| 933 ;No more, stop pandering to TTY users. | |
| 428 | 934 (define-function 'advertised-undo 'undo) |
| 935 | |
| 444 | 936 (defun undo (&optional count) |
| 428 | 937 "Undo some previous changes. |
| 938 Repeat this command to undo more changes. | |
| 939 A numeric argument serves as a repeat count." | |
| 940 (interactive "*p") | |
| 941 ;; If we don't get all the way through, make last-command indicate that | |
| 942 ;; for the following command. | |
| 943 (setq this-command t) | |
| 944 (let ((modified (buffer-modified-p)) | |
| 945 (recent-save (recent-auto-save-p))) | |
| 946 (or (eq (selected-window) (minibuffer-window)) | |
| 947 (display-message 'command "Undo!")) | |
| 948 (or (and (eq last-command 'undo) | |
| 949 (eq (current-buffer) last-undo-buffer)) ; XEmacs | |
| 950 (progn (undo-start) | |
| 951 (undo-more 1))) | |
| 444 | 952 (undo-more (or count 1)) |
| 428 | 953 ;; Don't specify a position in the undo record for the undo command. |
| 954 ;; Instead, undoing this should move point to where the change is. | |
| 955 (let ((tail buffer-undo-list) | |
| 956 done) | |
| 957 (while (and tail (not done) (not (null (car tail)))) | |
|
4885
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4869
diff
changeset
|
958 (if (fixnump (car tail)) |
| 428 | 959 (progn |
| 960 (setq done t) | |
| 961 (setq buffer-undo-list (delq (car tail) buffer-undo-list)))) | |
| 962 (setq tail (cdr tail)))) | |
| 963 (and modified (not (buffer-modified-p)) | |
| 964 (delete-auto-save-file-if-necessary recent-save))) | |
| 965 ;; If we do get all the way through, make this-command indicate that. | |
| 966 (setq this-command 'undo)) | |
| 967 | |
| 968 (defvar pending-undo-list nil | |
| 969 "Within a run of consecutive undo commands, list remaining to be undone.") | |
| 970 | |
| 971 (defvar last-undo-buffer nil) ; XEmacs | |
| 972 | |
| 973 (defun undo-start () | |
| 974 "Set `pending-undo-list' to the front of the undo list. | |
| 975 The next call to `undo-more' will undo the most recently made change." | |
| 976 (if (eq buffer-undo-list t) | |
| 977 (error "No undo information in this buffer")) | |
| 978 (setq pending-undo-list buffer-undo-list)) | |
| 979 | |
| 980 (defun undo-more (count) | |
| 981 "Undo back N undo-boundaries beyond what was already undone recently. | |
| 982 Call `undo-start' to get ready to undo recent changes, | |
| 983 then call `undo-more' one or more times to undo them." | |
| 984 (or pending-undo-list | |
| 985 (error "No further undo information")) | |
| 986 (setq pending-undo-list (primitive-undo count pending-undo-list) | |
| 987 last-undo-buffer (current-buffer))) ; XEmacs | |
| 988 | |
| 844 | 989 (defun undo-all-changes () |
| 990 "Keep undoing till the start of the undo list is reached. | |
| 991 Undoes all changes, even past a file save. Especially useful when you've | |
| 992 saved the file at some point." | |
| 993 (interactive) | |
| 994 (undo-start) | |
| 995 (while pending-undo-list (undo-more 1))) | |
| 996 | |
| 428 | 997 ;; XEmacs |
| 998 (defun call-with-transparent-undo (fn &rest args) | |
| 999 "Apply FN to ARGS, and then undo all changes made by FN to the current | |
| 1000 buffer. The undo records are processed even if FN returns non-locally. | |
| 1001 There is no trace of the changes made by FN in the buffer's undo history. | |
| 1002 | |
| 1003 You can use this in a write-file-hooks function with continue-save-buffer | |
| 1004 to make the contents of a disk file differ from its in-memory buffer." | |
| 1005 (let ((buffer-undo-list nil) | |
| 1006 ;; Kludge to prevent undo list truncation: | |
| 1007 (undo-high-threshold -1) | |
| 1008 (undo-threshold -1) | |
| 1009 (obuffer (current-buffer))) | |
| 1010 (unwind-protect | |
| 1011 (apply fn args) | |
| 1012 ;; Go to the buffer we will restore and make it writable: | |
| 1013 (set-buffer obuffer) | |
| 1014 (save-excursion | |
| 1015 (let ((buffer-read-only nil)) | |
| 1016 (save-restriction | |
| 1017 (widen) | |
| 1018 ;; Perform all undos, with further undo logging disabled: | |
| 1019 (let ((tail buffer-undo-list)) | |
| 1020 (setq buffer-undo-list t) | |
| 1021 (while tail | |
| 1022 (setq tail (primitive-undo (length tail) tail)))))))))) | |
| 1023 | |
| 1024 ;; XEmacs: The following are in other files | |
| 1025 ;; shell-command-history | |
| 1026 ;; shell-command-switch | |
| 1027 ;; shell-command | |
| 1028 ;; shell-command-sentinel | |
| 1029 | |
| 1030 | |
| 1031 (defconst universal-argument-map | |
| 1032 (let ((map (make-sparse-keymap))) | |
| 1033 (set-keymap-default-binding map 'universal-argument-other-key) | |
| 1034 ;FSFmacs (define-key map [switch-frame] nil) | |
| 1035 (define-key map [(t)] 'universal-argument-other-key) | |
| 1036 (define-key map [(meta t)] 'universal-argument-other-key) | |
| 1037 (define-key map [(control u)] 'universal-argument-more) | |
| 1038 (define-key map [?-] 'universal-argument-minus) | |
| 1039 (define-key map [?0] 'digit-argument) | |
| 1040 (define-key map [?1] 'digit-argument) | |
| 1041 (define-key map [?2] 'digit-argument) | |
| 1042 (define-key map [?3] 'digit-argument) | |
| 1043 (define-key map [?4] 'digit-argument) | |
| 1044 (define-key map [?5] 'digit-argument) | |
| 1045 (define-key map [?6] 'digit-argument) | |
| 1046 (define-key map [?7] 'digit-argument) | |
| 1047 (define-key map [?8] 'digit-argument) | |
| 1048 (define-key map [?9] 'digit-argument) | |
| 1049 map) | |
| 1050 "Keymap used while processing \\[universal-argument].") | |
| 1051 | |
| 1052 (defvar universal-argument-num-events nil | |
| 1053 "Number of argument-specifying events read by `universal-argument'. | |
| 1054 `universal-argument-other-key' uses this to discard those events | |
| 1055 from (this-command-keys), and reread only the final command.") | |
| 1056 | |
| 1057 (defun universal-argument () | |
| 1058 "Begin a numeric argument for the following command. | |
| 1059 Digits or minus sign following \\[universal-argument] make up the numeric argument. | |
| 1060 \\[universal-argument] following the digits or minus sign ends the argument. | |
| 1061 \\[universal-argument] without digits or minus sign provides 4 as argument. | |
| 1062 Repeating \\[universal-argument] without digits or minus sign | |
| 1063 multiplies the argument by 4 each time." | |
| 1064 (interactive) | |
| 1065 (setq prefix-arg (list 4)) | |
| 1066 (setq zmacs-region-stays t) ; XEmacs | |
| 1067 (setq universal-argument-num-events (length (this-command-keys))) | |
| 1068 (setq overriding-terminal-local-map universal-argument-map)) | |
| 1069 | |
| 1070 ;; A subsequent C-u means to multiply the factor by 4 if we've typed | |
| 1071 ;; nothing but C-u's; otherwise it means to terminate the prefix arg. | |
| 1072 (defun universal-argument-more (arg) | |
| 1073 (interactive "_P") ; XEmacs | |
| 1074 (if (consp arg) | |
| 1075 (setq prefix-arg (list (* 4 (car arg)))) | |
| 1076 (setq prefix-arg arg) | |
| 1077 (setq overriding-terminal-local-map nil)) | |
| 1078 (setq universal-argument-num-events (length (this-command-keys)))) | |
| 1079 | |
| 1080 (defun negative-argument (arg) | |
| 1081 "Begin a negative numeric argument for the next command. | |
| 1082 \\[universal-argument] following digits or minus sign ends the argument." | |
| 1083 (interactive "_P") ; XEmacs | |
| 1084 (cond ((integerp arg) | |
| 1085 (setq prefix-arg (- arg))) | |
| 1086 ((eq arg '-) | |
| 1087 (setq prefix-arg nil)) | |
| 1088 (t | |
| 1089 (setq prefix-arg '-))) | |
| 1090 (setq universal-argument-num-events (length (this-command-keys))) | |
| 1091 (setq overriding-terminal-local-map universal-argument-map)) | |
| 1092 | |
| 1093 ;; XEmacs: This function not synched with FSF | |
| 1094 (defun digit-argument (arg) | |
| 1095 "Part of the numeric argument for the next command. | |
| 1096 \\[universal-argument] following digits or minus sign ends the argument." | |
| 1097 (interactive "_P") ; XEmacs | |
| 1098 (let* ((event last-command-event) | |
| 1099 (key (and (key-press-event-p event) | |
| 1100 (event-key event))) | |
| 1101 (digit (and key (characterp key) (>= key ?0) (<= key ?9) | |
| 1102 (- key ?0)))) | |
| 1103 (if (null digit) | |
| 1104 (universal-argument-other-key arg) | |
| 1105 (cond ((integerp arg) | |
| 1106 (setq prefix-arg (+ (* arg 10) | |
| 1107 (if (< arg 0) (- digit) digit)))) | |
| 1108 ((eq arg '-) | |
| 1109 ;; Treat -0 as just -, so that -01 will work. | |
| 1110 (setq prefix-arg (if (zerop digit) '- (- digit)))) | |
| 1111 (t | |
| 1112 (setq prefix-arg digit))) | |
| 1113 (setq universal-argument-num-events (length (this-command-keys))) | |
| 1114 (setq overriding-terminal-local-map universal-argument-map)))) | |
| 1115 | |
| 1116 ;; For backward compatibility, minus with no modifiers is an ordinary | |
| 1117 ;; command if digits have already been entered. | |
| 1118 (defun universal-argument-minus (arg) | |
| 1119 (interactive "_P") ; XEmacs | |
| 1120 (if (integerp arg) | |
| 1121 (universal-argument-other-key arg) | |
| 1122 (negative-argument arg))) | |
| 1123 | |
| 1124 ;; Anything else terminates the argument and is left in the queue to be | |
| 1125 ;; executed as a command. | |
| 1126 (defun universal-argument-other-key (arg) | |
| 1127 (interactive "_P") ; XEmacs | |
| 1128 (setq prefix-arg arg) | |
| 1129 (let* ((key (this-command-keys)) | |
| 1130 ;; FSF calls silly function `listify-key-sequence' here. | |
| 1131 (keylist (append key nil))) | |
| 1132 (setq unread-command-events | |
| 1133 (append (nthcdr universal-argument-num-events keylist) | |
| 1134 unread-command-events))) | |
| 1135 (reset-this-command-lengths) | |
| 1136 (setq overriding-terminal-local-map nil)) | |
| 1137 | |
| 1138 | |
| 1139 ;; XEmacs -- keep zmacs-region active. | |
| 444 | 1140 (defun forward-to-indentation (count) |
| 1141 "Move forward COUNT lines and position at first nonblank character." | |
| 428 | 1142 (interactive "_p") |
| 444 | 1143 (forward-line count) |
| 428 | 1144 (skip-chars-forward " \t")) |
| 1145 | |
| 444 | 1146 (defun backward-to-indentation (count) |
| 1147 "Move backward COUNT lines and position at first nonblank character." | |
| 428 | 1148 (interactive "_p") |
| 444 | 1149 (forward-line (- count)) |
| 428 | 1150 (skip-chars-forward " \t")) |
| 1151 | |
| 1152 (defcustom kill-whole-line nil | |
| 462 | 1153 "*If non-nil, kill the whole line if point is at the beginning. |
| 1154 Otherwise, `kill-line' kills only up to the end of the line, but not | |
| 503 | 1155 the terminating newline. |
| 462 | 1156 |
| 1157 WARNING: This is a misnamed variable! It should be called something | |
| 1158 like `kill-whole-line-when-at-beginning'. If you simply want | |
| 1159 \\[kill-line] to kill the entire current line, bind it to the function | |
| 1160 `kill-entire-line'. " | |
| 1161 :type 'boolean | |
| 428 | 1162 :group 'killing) |
| 1163 | |
| 503 | 1164 (defun kill-line-1 (arg entire-line) |
| 462 | 1165 (kill-region (if entire-line |
| 442 | 1166 (save-excursion |
| 1167 (beginning-of-line) | |
| 1168 (point)) | |
| 1169 (point)) | |
| 428 | 1170 ;; Don't shift point before doing the delete; that way, |
| 1171 ;; undo will record the right position of point. | |
| 1172 ;; FSF | |
| 1173 ; ;; It is better to move point to the other end of the kill | |
| 1174 ; ;; before killing. That way, in a read-only buffer, point | |
| 1175 ; ;; moves across the text that is copied to the kill ring. | |
| 1176 ; ;; The choice has no effect on undo now that undo records | |
| 1177 ; ;; the value of point from before the command was run. | |
| 1178 ; (progn | |
| 1179 (save-excursion | |
| 1180 (if arg | |
| 1181 (forward-line (prefix-numeric-value arg)) | |
| 1182 (if (eobp) | |
| 1183 (signal 'end-of-buffer nil)) | |
| 442 | 1184 (if (or (looking-at "[ \t]*$") |
| 462 | 1185 (or entire-line |
| 503 | 1186 (and kill-whole-line (bolp)))) |
| 428 | 1187 (forward-line 1) |
| 1188 (end-of-line))) | |
| 1189 (point)))) | |
| 1190 | |
| 462 | 1191 (defun kill-entire-line (&optional arg) |
| 1192 "Kill the entire line. | |
| 1193 With prefix argument, kill that many lines from point. Negative | |
| 1194 arguments kill lines backward. | |
| 1195 | |
| 1196 When calling from a program, nil means \"no arg\", | |
| 1197 a number counts as a prefix arg." | |
| 1198 (interactive "*P") | |
| 503 | 1199 (kill-line-1 arg t)) |
| 462 | 1200 |
| 1201 (defun kill-line (&optional arg) | |
| 1202 "Kill the rest of the current line, or the entire line. | |
| 1203 If no nonblanks there, kill thru newline. If called interactively, | |
| 1204 may kill the entire line when given no argument at the beginning of a | |
| 1205 line; see `kill-whole-line'. With prefix argument, kill that many | |
| 1206 lines from point. Negative arguments kill lines backward. | |
| 1207 | |
| 1208 WARNING: This is a misnamed function! It should be called something | |
| 1209 like `kill-to-end-of-line'. If you simply want to kill the entire | |
| 1210 current line, use `kill-entire-line'. | |
| 1211 | |
| 1212 When calling from a program, nil means \"no arg\", | |
| 1213 a number counts as a prefix arg." | |
| 1214 (interactive "*P") | |
| 503 | 1215 (kill-line-1 arg nil)) |
| 462 | 1216 |
| 428 | 1217 ;; XEmacs |
| 1218 (defun backward-kill-line nil | |
| 1219 "Kill back to the beginning of the line." | |
| 1220 (interactive) | |
| 1221 (let ((point (point))) | |
| 1222 (beginning-of-line nil) | |
| 1223 (kill-region (point) point))) | |
| 1224 | |
| 1225 | |
| 1226 ;;;; Window system cut and paste hooks. | |
| 1227 ;;; | |
| 1228 ;;; I think that kill-hooks is a better name and more general mechanism | |
| 1229 ;;; than interprogram-cut-function (from FSFmacs). I don't like the behavior | |
| 1230 ;;; of interprogram-paste-function: ^Y should always come from the kill ring, | |
| 1231 ;;; not the X selection. But if that were provided, it should be called (and | |
| 1232 ;;; behave as) yank-hooks instead. -- jwz | |
| 1233 | |
| 1234 ;; [... code snipped ...] | |
| 1235 | |
| 1236 (defcustom kill-hooks nil | |
| 1237 "*Functions run when something is added to the XEmacs kill ring. | |
| 1238 These functions are called with one argument, the string most recently | |
| 1239 cut or copied. You can use this to, for example, make the most recent | |
| 1240 kill become the X Clipboard selection." | |
| 1241 :type 'hook | |
| 1242 :group 'killing) | |
| 1243 | |
| 1244 ;;; `kill-hooks' seems not sufficient because | |
| 1245 ;;; `interprogram-cut-function' requires more variable about to rotate | |
| 1246 ;;; the cut buffers. I'm afraid to change interface of `kill-hooks', | |
| 1247 ;;; so I add it. (1997-11-03 by MORIOKA Tomohiko) | |
| 1248 | |
| 442 | 1249 (defcustom interprogram-cut-function 'own-clipboard |
| 428 | 1250 "Function to call to make a killed region available to other programs. |
| 1251 | |
| 1252 Most window systems provide some sort of facility for cutting and | |
| 1253 pasting text between the windows of different programs. | |
| 1254 This variable holds a function that Emacs calls whenever text | |
| 1255 is put in the kill ring, to make the new kill available to other | |
| 1256 programs. | |
| 1257 | |
| 1258 The function takes one or two arguments. | |
| 1259 The first argument, TEXT, is a string containing | |
| 1260 the text which should be made available. | |
| 1261 The second, PUSH, if non-nil means this is a \"new\" kill; | |
| 843 | 1262 nil means appending to an \"old\" kill. |
| 1263 | |
| 1264 One reasonable choice is `own-clipboard' (the default)." | |
| 442 | 1265 :type '(radio (function-item :tag "Send to Clipboard" |
| 1266 :format "%t\n" | |
| 1267 own-clipboard) | |
| 1268 (const :tag "None" nil) | |
| 1269 (function :tag "Other")) | |
| 1270 :group 'killing) | |
| 1271 | |
| 843 | 1272 (defcustom interprogram-paste-function 'get-clipboard-foreign |
| 428 | 1273 "Function to call to get text cut from other programs. |
| 1274 | |
| 1275 Most window systems provide some sort of facility for cutting and | |
| 1276 pasting text between the windows of different programs. | |
| 1277 This variable holds a function that Emacs calls to obtain | |
| 1278 text that other programs have provided for pasting. | |
| 1279 | |
| 1280 The function should be called with no arguments. If the function | |
| 1281 returns nil, then no other program has provided such text, and the top | |
| 1282 of the Emacs kill ring should be used. If the function returns a | |
| 1283 string, that string should be put in the kill ring as the latest kill. | |
| 1284 | |
| 1285 Note that the function should return a string only if a program other | |
| 1286 than Emacs has provided a string for pasting; if Emacs provided the | |
| 1287 most recent string, the function should return nil. If it is | |
| 1288 difficult to tell whether Emacs or some other program provided the | |
| 1289 current string, it is probably good enough to return nil if the string | |
| 843 | 1290 is equal (according to `string=') to the last text Emacs provided. |
| 1291 | |
| 1292 Reasonable choices include `get-clipboard-foreign' (the default), and | |
| 1293 functions calling `get-selection-foreign' (q.v.)." | |
| 442 | 1294 :type '(radio (function-item :tag "Get from Clipboard" |
| 1295 :format "%t\n" | |
| 843 | 1296 get-clipboard-foreign) |
| 442 | 1297 (const :tag "None" nil) |
| 1298 (function :tag "Other")) | |
| 1299 :group 'killing) | |
| 428 | 1300 |
| 1301 | |
| 1302 ;;;; The kill ring data structure. | |
| 1303 | |
| 1304 (defvar kill-ring nil | |
| 1305 "List of killed text sequences. | |
| 1306 Since the kill ring is supposed to interact nicely with cut-and-paste | |
| 1307 facilities offered by window systems, use of this variable should | |
| 1308 interact nicely with `interprogram-cut-function' and | |
| 1309 `interprogram-paste-function'. The functions `kill-new', | |
| 1310 `kill-append', and `current-kill' are supposed to implement this | |
| 1311 interaction; you may want to use them instead of manipulating the kill | |
| 1312 ring directly.") | |
| 1313 | |
| 829 | 1314 (defcustom kill-ring-max 60 |
| 428 | 1315 "*Maximum length of kill ring before oldest elements are thrown away." |
| 1316 :type 'integer | |
| 1317 :group 'killing) | |
| 1318 | |
| 1319 (defvar kill-ring-yank-pointer nil | |
| 1320 "The tail of the kill ring whose car is the last thing yanked.") | |
| 1321 | |
| 1322 (defun kill-new (string &optional replace) | |
| 1323 "Make STRING the latest kill in the kill ring. | |
| 444 | 1324 Set `kill-ring-yank-pointer' to point to it. |
| 829 | 1325 If `interprogram-cut-function' is non-nil, apply it to STRING. |
| 428 | 1326 Run `kill-hooks'. |
| 1327 Optional second argument REPLACE non-nil means that STRING will replace | |
| 1328 the front of the kill ring, rather than being added to the list." | |
| 1329 ; (and (fboundp 'menu-bar-update-yank-menu) | |
| 1330 ; (menu-bar-update-yank-menu string (and replace (car kill-ring)))) | |
| 829 | 1331 (if (and replace kill-ring) |
| 428 | 1332 (setcar kill-ring string) |
| 1333 (setq kill-ring (cons string kill-ring)) | |
| 1334 (if (> (length kill-ring) kill-ring-max) | |
| 1335 (setcdr (nthcdr (1- kill-ring-max) kill-ring) nil))) | |
| 1336 (setq kill-ring-yank-pointer kill-ring) | |
| 1337 (if interprogram-cut-function | |
| 1338 (funcall interprogram-cut-function string (not replace))) | |
| 1339 (run-hook-with-args 'kill-hooks string)) | |
| 1340 | |
| 1341 (defun kill-append (string before-p) | |
| 1342 "Append STRING to the end of the latest kill in the kill ring. | |
| 1343 If BEFORE-P is non-nil, prepend STRING to the kill. | |
| 1344 Run `kill-hooks'." | |
| 1345 (kill-new (if before-p | |
| 1346 (concat string (car kill-ring)) | |
| 1347 (concat (car kill-ring) string)) t)) | |
| 1348 | |
| 1349 (defun current-kill (n &optional do-not-move) | |
| 1350 "Rotate the yanking point by N places, and then return that kill. | |
| 1351 If N is zero, `interprogram-paste-function' is set, and calling it | |
| 1352 returns a string, then that string is added to the front of the | |
| 1353 kill ring and returned as the latest kill. | |
| 1354 If optional arg DO-NOT-MOVE is non-nil, then don't actually move the | |
| 1355 yanking point\; just return the Nth kill forward." | |
| 1356 (let ((interprogram-paste (and (= n 0) | |
| 1357 interprogram-paste-function | |
| 1358 (funcall interprogram-paste-function)))) | |
| 1359 (if interprogram-paste | |
| 1360 (progn | |
| 1361 ;; Disable the interprogram cut function when we add the new | |
| 1362 ;; text to the kill ring, so Emacs doesn't try to own the | |
| 1363 ;; selection, with identical text. | |
| 1364 (let ((interprogram-cut-function nil)) | |
| 1365 (kill-new interprogram-paste)) | |
| 1366 interprogram-paste) | |
| 1367 (or kill-ring (error "Kill ring is empty")) | |
| 1368 (let* ((tem (nthcdr (mod (- n (length kill-ring-yank-pointer)) | |
| 1369 (length kill-ring)) | |
| 1370 kill-ring))) | |
| 1371 (or do-not-move | |
| 1372 (setq kill-ring-yank-pointer tem)) | |
| 1373 (car tem))))) | |
| 1374 | |
| 1375 | |
| 1376 | |
| 1377 ;;;; Commands for manipulating the kill ring. | |
| 1378 | |
| 1379 ;; In FSF killing read-only text just pastes it into kill-ring. Which | |
| 1380 ;; is a very bad idea -- see Jamie's comment below. | |
| 1381 | |
| 1382 ;(defvar kill-read-only-ok nil | |
| 1383 ; "*Non-nil means don't signal an error for killing read-only text.") | |
| 1384 | |
| 444 | 1385 (defun kill-region (start end &optional verbose) ; verbose is XEmacs addition |
| 428 | 1386 "Kill between point and mark. |
| 1387 The text is deleted but saved in the kill ring. | |
| 1388 The command \\[yank] can retrieve it from there. | |
| 1389 \(If you want to kill and then yank immediately, use \\[copy-region-as-kill].) | |
| 1390 | |
| 1391 This is the primitive for programs to kill text (as opposed to deleting it). | |
| 1392 Supply two arguments, character numbers indicating the stretch of text | |
| 1393 to be killed. | |
| 1394 Any command that calls this function is a \"kill command\". | |
| 1395 If the previous command was also a kill command, | |
| 1396 the text killed this time appends to the text killed last time | |
| 1397 to make one entry in the kill ring." | |
| 1398 (interactive "*r\np") | |
| 1399 ; (interactive | |
| 1400 ; (let ((region-hack (and zmacs-regions (eq last-command 'yank)))) | |
| 1401 ; ;; This lets "^Y^W" work. I think this is dumb, but zwei did it. | |
| 1402 ; (if region-hack (zmacs-activate-region)) | |
| 1403 ; (prog1 | |
| 1404 ; (list (point) (mark) current-prefix-arg) | |
| 1405 ; (if region-hack (zmacs-deactivate-region))))) | |
| 444 | 1406 ;; start and end can be markers but the rest of this function is |
| 428 | 1407 ;; written as if they are only integers |
| 444 | 1408 (if (markerp start) (setq start (marker-position start))) |
| 428 | 1409 (if (markerp end) (setq end (marker-position end))) |
| 444 | 1410 (or (and start end) (if zmacs-regions ;; rewritten for I18N3 snarfing |
| 428 | 1411 (error "The region is not active now") |
| 1412 (error "The mark is not set now"))) | |
| 1413 (if verbose (if buffer-read-only | |
| 1414 (lmessage 'command "Copying %d characters" | |
| 444 | 1415 (- (max start end) (min start end))) |
| 428 | 1416 (lmessage 'command "Killing %d characters" |
| 444 | 1417 (- (max start end) (min start end))))) |
| 428 | 1418 (cond |
| 1419 | |
| 1420 ;; I don't like this large change in behavior -- jwz | |
| 1421 ;; Read-Only text means it shouldn't be deleted, so I'm restoring | |
| 1422 ;; this code, but only for text-properties and not full extents. -sb | |
| 1423 ;; If the buffer is read-only, we should beep, in case the person | |
| 1424 ;; just isn't aware of this. However, there's no harm in putting | |
| 1425 ;; the region's text in the kill ring, anyway. | |
| 1426 ((or (and buffer-read-only (not inhibit-read-only)) | |
| 444 | 1427 (text-property-not-all (min start end) (max start end) 'read-only nil)) |
| 428 | 1428 ;; This is redundant. |
| 1429 ;; (if verbose (message "Copying %d characters" | |
| 444 | 1430 ;; (- (max start end) (min start end)))) |
| 1431 (copy-region-as-kill start end) | |
| 428 | 1432 ;; ;; This should always barf, and give us the correct error. |
| 1433 ;; (if kill-read-only-ok | |
| 1434 ;; (message "Read only text copied to kill ring") | |
| 1435 (setq this-command 'kill-region) | |
| 1436 (barf-if-buffer-read-only) | |
| 1437 (signal 'buffer-read-only (list (current-buffer)))) | |
| 1438 | |
| 1439 ;; In certain cases, we can arrange for the undo list and the kill | |
| 1440 ;; ring to share the same string object. This code does that. | |
| 1441 ((not (or (eq buffer-undo-list t) | |
| 1442 (eq last-command 'kill-region) | |
| 1443 ;; Use = since positions may be numbers or markers. | |
| 444 | 1444 (= start end))) |
| 428 | 1445 ;; Don't let the undo list be truncated before we can even access it. |
| 1446 ;; FSF calls this `undo-strong-limit' | |
| 444 | 1447 (let ((undo-high-threshold (+ (- end start) 100)) |
| 428 | 1448 ;(old-list buffer-undo-list) |
| 1449 tail) | |
| 444 | 1450 (delete-region start end) |
| 428 | 1451 ;; Search back in buffer-undo-list for this string, |
| 1452 ;; in case a change hook made property changes. | |
| 1453 (setq tail buffer-undo-list) | |
| 1454 (while (and tail | |
| 1455 (not (stringp (car-safe (car-safe tail))))) ; XEmacs | |
| 1456 (pop tail)) | |
| 1457 ;; Take the same string recorded for undo | |
| 1458 ;; and put it in the kill-ring. | |
| 1459 (and tail | |
| 1460 (kill-new (car (car tail)))))) | |
| 1461 | |
| 1462 (t | |
| 1463 ;; if undo is not kept, grab the string then delete it (which won't | |
| 1464 ;; add another string to the undo list). | |
| 444 | 1465 (copy-region-as-kill start end) |
| 1466 (delete-region start end))) | |
| 428 | 1467 (setq this-command 'kill-region)) |
| 1468 | |
| 1469 ;; copy-region-as-kill no longer sets this-command, because it's confusing | |
| 1470 ;; to get two copies of the text when the user accidentally types M-w and | |
| 1471 ;; then corrects it with the intended C-w. | |
| 444 | 1472 (defun copy-region-as-kill (start end) |
| 428 | 1473 "Save the region as if killed, but don't kill it. |
| 1474 Run `kill-hooks'." | |
| 1475 (interactive "r") | |
| 1476 (if (eq last-command 'kill-region) | |
| 444 | 1477 (kill-append (buffer-substring start end) (< end start)) |
| 1478 (kill-new (buffer-substring start end))) | |
| 428 | 1479 nil) |
| 1480 | |
| 444 | 1481 (defun kill-ring-save (start end) |
| 428 | 1482 "Save the region as if killed, but don't kill it. |
| 1483 This command is similar to `copy-region-as-kill', except that it gives | |
| 1484 visual feedback indicating the extent of the region being copied." | |
| 1485 (interactive "r") | |
| 444 | 1486 (copy-region-as-kill start end) |
| 428 | 1487 ;; copy before delay, for xclipboard's benefit |
| 1488 (if (interactive-p) | |
| 444 | 1489 (let ((other-end (if (= (point) start) end start)) |
| 428 | 1490 (opoint (point)) |
| 1491 ;; Inhibit quitting so we can make a quit here | |
| 1492 ;; look like a C-g typed as a command. | |
| 1493 (inhibit-quit t)) | |
| 1494 (if (pos-visible-in-window-p other-end (selected-window)) | |
| 1495 (progn | |
| 1496 ;; FSF (I'm not sure what this does -sb) | |
| 1497 ; ;; Swap point and mark. | |
| 1498 ; (set-marker (mark-marker) (point) (current-buffer)) | |
| 1499 (goto-char other-end) | |
| 1500 (sit-for 1) | |
| 1501 ; ;; Swap back. | |
| 1502 ; (set-marker (mark-marker) other-end (current-buffer)) | |
| 1503 (goto-char opoint) | |
| 1504 ;; If user quit, deactivate the mark | |
| 1505 ;; as C-g would as a command. | |
| 1506 (and quit-flag (mark) | |
| 1507 (zmacs-deactivate-region))) | |
| 1508 ;; too noisy. -- jwz | |
| 1509 ; (let* ((killed-text (current-kill 0)) | |
| 1510 ; (message-len (min (length killed-text) 40))) | |
| 444 | 1511 ; (if (= (point) start) |
| 428 | 1512 ; ;; Don't say "killed"; that is misleading. |
| 1513 ; (message "Saved text until \"%s\"" | |
| 1514 ; (substring killed-text (- message-len))) | |
| 1515 ; (message "Saved text from \"%s\"" | |
| 1516 ; (substring killed-text 0 message-len)))) | |
| 1517 )))) | |
| 1518 | |
| 1519 (defun append-next-kill () | |
| 1520 "Cause following command, if it kills, to append to previous kill." | |
| 1521 ;; XEmacs | |
| 1522 (interactive "_") | |
| 1523 (if (interactive-p) | |
| 1524 (progn | |
| 1525 (setq this-command 'kill-region) | |
| 1526 (display-message 'command | |
| 1527 "If the next command is a kill, it will append")) | |
| 1528 (setq last-command 'kill-region))) | |
| 1529 | |
| 1530 (defun yank-pop (arg) | |
| 1531 "Replace just-yanked stretch of killed text with a different stretch. | |
| 1532 This command is allowed only immediately after a `yank' or a `yank-pop'. | |
| 1533 At such a time, the region contains a stretch of reinserted | |
| 1534 previously-killed text. `yank-pop' deletes that text and inserts in its | |
| 1535 place a different stretch of killed text. | |
| 1536 | |
| 1537 With no argument, the previous kill is inserted. | |
| 1538 With argument N, insert the Nth previous kill. | |
| 1539 If N is negative, this is a more recent kill. | |
| 1540 | |
| 1541 The sequence of kills wraps around, so that after the oldest one | |
| 1542 comes the newest one." | |
| 1543 (interactive "*p") | |
| 1544 (if (not (eq last-command 'yank)) | |
| 1545 (error "Previous command was not a yank")) | |
| 1546 (setq this-command 'yank) | |
| 1547 (let ((inhibit-read-only t) | |
| 1548 (before (< (point) (mark t)))) | |
| 1549 (delete-region (point) (mark t)) | |
| 1550 ;;(set-marker (mark-marker) (point) (current-buffer)) | |
| 1551 (set-mark (point)) | |
| 1552 (insert (current-kill arg)) | |
| 1553 (if before | |
| 1554 ;; This is like exchange-point-and-mark, but doesn't activate the mark. | |
| 1555 ;; It is cleaner to avoid activation, even though the command | |
| 1556 ;; loop would deactivate the mark because we inserted text. | |
| 1557 (goto-char (prog1 (mark t) | |
| 1558 (set-marker (mark-marker t) (point) (current-buffer)))))) | |
| 1559 nil) | |
| 1560 | |
| 1561 | |
| 1562 (defun yank (&optional arg) | |
| 1563 "Reinsert the last stretch of killed text. | |
| 1564 More precisely, reinsert the stretch of killed text most recently | |
| 1565 killed OR yanked. Put point at end, and set mark at beginning. | |
| 1566 With just C-u as argument, same but put point at beginning (and mark at end). | |
| 1567 With argument N, reinsert the Nth most recently killed stretch of killed | |
| 1568 text. | |
| 1569 See also the command \\[yank-pop]." | |
| 1570 (interactive "*P") | |
| 1571 ;; If we don't get all the way through, make last-command indicate that | |
| 1572 ;; for the following command. | |
| 1573 (setq this-command t) | |
| 1574 (push-mark (point)) | |
| 1575 (insert (current-kill (cond | |
| 1576 ((listp arg) 0) | |
| 1577 ((eq arg '-) -1) | |
| 1578 (t (1- arg))))) | |
| 1579 (if (consp arg) | |
| 1580 ;; This is like exchange-point-and-mark, but doesn't activate the mark. | |
| 1581 ;; It is cleaner to avoid activation, even though the command | |
| 1582 ;; loop would deactivate the mark because we inserted text. | |
| 1583 ;; (But it's an unnecessary kludge in XEmacs.) | |
| 1584 ;(goto-char (prog1 (mark t) | |
| 1585 ;(set-marker (mark-marker) (point) (current-buffer))))) | |
| 1586 (exchange-point-and-mark t)) | |
| 1587 ;; If we do get all the way thru, make this-command indicate that. | |
| 1588 (setq this-command 'yank) | |
| 1589 nil) | |
| 1590 | |
| 1591 (defun rotate-yank-pointer (arg) | |
| 1592 "Rotate the yanking point in the kill ring. | |
| 1593 With argument, rotate that many kills forward (or backward, if negative)." | |
| 1594 (interactive "p") | |
| 1595 (current-kill arg)) | |
| 1596 | |
| 1597 | |
| 1598 (defun insert-buffer (buffer) | |
| 1599 "Insert after point the contents of BUFFER. | |
| 1600 Puts mark after the inserted text. | |
| 1601 BUFFER may be a buffer or a buffer name." | |
| 1602 (interactive | |
| 1603 (list | |
| 1604 (progn | |
| 1605 (barf-if-buffer-read-only) | |
| 1606 (read-buffer "Insert buffer: " | |
| 1607 ;; XEmacs: we have different args | |
| 1608 (other-buffer (current-buffer) nil t) | |
| 1609 t)))) | |
| 1610 (or (bufferp buffer) | |
| 1611 (setq buffer (get-buffer buffer))) | |
| 1612 (let (start end newmark) | |
| 1613 (save-excursion | |
| 1614 (save-excursion | |
| 1615 (set-buffer buffer) | |
| 1616 (setq start (point-min) end (point-max))) | |
| 1617 (insert-buffer-substring buffer start end) | |
| 1618 (setq newmark (point))) | |
| 1619 (push-mark newmark)) | |
| 1620 nil) | |
| 1621 | |
| 1622 (defun append-to-buffer (buffer start end) | |
| 1623 "Append to specified buffer the text of the region. | |
| 1624 It is inserted into that buffer before its point. | |
| 1625 | |
| 1626 When calling from a program, give three arguments: | |
| 1627 BUFFER (or buffer name), START and END. | |
| 1628 START and END specify the portion of the current buffer to be copied." | |
| 1629 (interactive | |
| 1630 ;; XEmacs: we have different args to other-buffer | |
| 1631 (list (read-buffer "Append to buffer: " (other-buffer (current-buffer) | |
| 1632 nil t)) | |
| 1633 (region-beginning) (region-end))) | |
| 1634 (let ((oldbuf (current-buffer))) | |
| 1635 (save-excursion | |
| 1636 (set-buffer (get-buffer-create buffer)) | |
| 1637 (insert-buffer-substring oldbuf start end)))) | |
| 1638 | |
| 1639 (defun prepend-to-buffer (buffer start end) | |
| 1640 "Prepend to specified buffer the text of the region. | |
| 1641 It is inserted into that buffer after its point. | |
| 1642 | |
| 1643 When calling from a program, give three arguments: | |
| 1644 BUFFER (or buffer name), START and END. | |
| 1645 START and END specify the portion of the current buffer to be copied." | |
| 1646 (interactive "BPrepend to buffer: \nr") | |
| 1647 (let ((oldbuf (current-buffer))) | |
| 1648 (save-excursion | |
| 1649 (set-buffer (get-buffer-create buffer)) | |
| 1650 (save-excursion | |
| 1651 (insert-buffer-substring oldbuf start end))))) | |
| 1652 | |
| 1653 (defun copy-to-buffer (buffer start end) | |
| 1654 "Copy to specified buffer the text of the region. | |
| 1655 It is inserted into that buffer, replacing existing text there. | |
| 1656 | |
| 1657 When calling from a program, give three arguments: | |
| 1658 BUFFER (or buffer name), START and END. | |
| 1659 START and END specify the portion of the current buffer to be copied." | |
| 1660 (interactive "BCopy to buffer: \nr") | |
| 1661 (let ((oldbuf (current-buffer))) | |
| 1662 (save-excursion | |
| 1663 (set-buffer (get-buffer-create buffer)) | |
| 1664 (erase-buffer) | |
| 1665 (save-excursion | |
| 1666 (insert-buffer-substring oldbuf start end))))) | |
| 1667 | |
| 1668 ;FSFmacs | |
| 1669 ;(put 'mark-inactive 'error-conditions '(mark-inactive error)) | |
| 1670 ;(put 'mark-inactive 'error-message "The mark is not active now") | |
| 1671 | |
| 1672 (defun mark (&optional force buffer) | |
| 1673 "Return this buffer's mark value as integer, or nil if no mark. | |
| 1674 | |
| 1675 If `zmacs-regions' is true, then this returns nil unless the region is | |
| 1676 currently in the active (highlighted) state. With an argument of t, this | |
| 1677 returns the mark (if there is one) regardless of the active-region state. | |
| 1678 You should *generally* not use the mark unless the region is active, if | |
| 1679 the user has expressed a preference for the active-region model. | |
| 1680 | |
| 1681 If you are using this in an editing command, you are most likely making | |
| 1682 a mistake; see the documentation of `set-mark'." | |
| 1683 (setq buffer (decode-buffer buffer)) | |
| 1684 ;FSFmacs version: | |
| 1685 ; (if (or force (not transient-mark-mode) mark-active mark-even-if-inactive) | |
| 1686 ; (marker-position (mark-marker)) | |
| 1687 ; (signal 'mark-inactive nil))) | |
| 1688 (let ((m (mark-marker force buffer))) | |
| 1689 (and m (marker-position m)))) | |
| 1690 | |
| 1691 ;;;#### FSFmacs | |
| 1692 ;;; Many places set mark-active directly, and several of them failed to also | |
| 1693 ;;; run deactivate-mark-hook. This shorthand should simplify. | |
| 1694 ;(defsubst deactivate-mark () | |
| 1695 ; "Deactivate the mark by setting `mark-active' to nil. | |
| 1696 ;\(That makes a difference only in Transient Mark mode.) | |
| 1697 ;Also runs the hook `deactivate-mark-hook'." | |
| 1698 ; (if transient-mark-mode | |
| 1699 ; (progn | |
| 1700 ; (setq mark-active nil) | |
| 1701 ; (run-hooks 'deactivate-mark-hook)))) | |
| 1702 | |
| 1703 (defun set-mark (pos &optional buffer) | |
| 1704 "Set this buffer's mark to POS. Don't use this function! | |
| 1705 That is to say, don't use this function unless you want | |
| 1706 the user to see that the mark has moved, and you want the previous | |
| 1707 mark position to be lost. | |
| 1708 | |
| 1709 Normally, when a new mark is set, the old one should go on the stack. | |
| 444 | 1710 This is why most applications should use `push-mark', not `set-mark'. |
| 428 | 1711 |
| 1712 Novice Emacs Lisp programmers often try to use the mark for the wrong | |
| 1713 purposes. The mark saves a location for the user's convenience. | |
| 1714 Most editing commands should not alter the mark. | |
| 1715 To remember a location for internal use in the Lisp program, | |
| 1716 store it in a Lisp variable. Example: | |
| 1717 | |
| 444 | 1718 (let ((start (point))) (forward-line 1) (delete-region start (point)))." |
| 428 | 1719 |
| 1720 (setq buffer (decode-buffer buffer)) | |
| 1721 (set-marker (mark-marker t buffer) pos buffer)) | |
| 1722 ;; FSF | |
| 1723 ; (if pos | |
| 1724 ; (progn | |
| 1725 ; (setq mark-active t) | |
| 1726 ; (run-hooks 'activate-mark-hook) | |
| 1727 ; (set-marker (mark-marker) pos (current-buffer))) | |
| 1728 ; ;; Normally we never clear mark-active except in Transient Mark mode. | |
| 1729 ; ;; But when we actually clear out the mark value too, | |
| 1730 ; ;; we must clear mark-active in any mode. | |
| 1731 ; (setq mark-active nil) | |
| 1732 ; (run-hooks 'deactivate-mark-hook) | |
| 1733 ; (set-marker (mark-marker) nil))) | |
| 1734 | |
| 1735 (defvar mark-ring nil | |
| 442 | 1736 "The list of former marks of the current buffer, most recent first. |
| 1737 This variable is automatically buffer-local.") | |
| 428 | 1738 (make-variable-buffer-local 'mark-ring) |
| 1739 (put 'mark-ring 'permanent-local t) | |
| 1740 | |
| 442 | 1741 (defvar dont-record-current-mark nil |
| 1742 "If set to t, the current mark value should not be recorded on the mark ring. | |
| 1743 This is set by commands that manipulate the mark incidentally, to avoid | |
| 1744 cluttering the mark ring unnecessarily. Under most circumstances, you do | |
| 1745 not need to set this directly; it is automatically reset each time | |
| 1746 `push-mark' is called, according to `mark-ring-unrecorded-commands'. This | |
| 1747 variable is automatically buffer-local.") | |
| 1748 (make-variable-buffer-local 'dont-record-current-mark) | |
| 1749 (put 'dont-record-current-mark 'permanent-local t) | |
| 1750 | |
| 1751 ;; a conspiracy between push-mark and handle-pre-motion-command | |
| 1752 (defvar in-shifted-motion-command nil) | |
| 1753 | |
| 1754 (defcustom mark-ring-unrecorded-commands '(shifted-motion-commands | |
| 1755 yank | |
| 1756 mark-beginning-of-buffer | |
| 1757 mark-bob | |
| 1758 mark-defun | |
| 1759 mark-end-of-buffer | |
| 1760 mark-end-of-line | |
| 1761 mark-end-of-sentence | |
| 1762 mark-eob | |
| 1763 mark-marker | |
| 1764 mark-page | |
| 1765 mark-paragraph | |
| 1766 mark-sexp | |
| 1767 mark-whole-buffer | |
| 1768 mark-word) | |
| 1769 "*List of commands whose marks should not be recorded on the mark stack. | |
| 1770 Many commands set the mark as part of their action. Normally, all such | |
| 1771 marks get recorded onto the mark stack. However, this tends to clutter up | |
| 1772 the mark stack unnecessarily. You can control this by putting a command | |
| 1773 onto this list. Then, any marks set by the function will not be recorded. | |
| 1774 | |
| 1775 The special value `shifted-motion-commands' causes marks set as a result | |
| 1776 of selection using any shifted motion commands to not be recorded. | |
| 1777 | |
| 1778 The value `yank' affects all yank-like commands, as well as just `yank'." | |
| 1779 :type '(repeat (choice (const :tag "shifted motion commands" | |
| 462 | 1780 shifted-motion-commands) |
| 442 | 1781 (const :tag "functions that select text" |
| 1782 :inline t | |
| 462 | 1783 (mark-beginning-of-buffer |
| 1784 mark-bob | |
| 1785 mark-defun | |
| 1786 mark-end-of-buffer | |
| 1787 mark-end-of-line | |
| 1788 mark-end-of-sentence | |
| 1789 mark-eob | |
| 1790 mark-marker | |
| 1791 mark-page | |
| 1792 mark-paragraph | |
| 1793 mark-sexp | |
| 1794 mark-whole-buffer | |
| 1795 mark-word)) | |
| 442 | 1796 (const :tag "functions that paste text" |
| 462 | 1797 yank) |
| 442 | 1798 function)) |
| 1799 :group 'killing) | |
| 1800 | |
| 428 | 1801 (defcustom mark-ring-max 16 |
| 1802 "*Maximum size of mark ring. Start discarding off end if gets this big." | |
| 1803 :type 'integer | |
| 1804 :group 'killing) | |
| 1805 | |
| 1806 (defvar global-mark-ring nil | |
| 1807 "The list of saved global marks, most recent first.") | |
| 1808 | |
| 1809 (defcustom global-mark-ring-max 16 | |
| 1810 "*Maximum size of global mark ring. \ | |
| 1811 Start discarding off end if gets this big." | |
| 1812 :type 'integer | |
| 1813 :group 'killing) | |
| 1814 | |
| 1815 (defun set-mark-command (arg) | |
| 1816 "Set mark at where point is, or jump to mark. | |
| 1817 With no prefix argument, set mark, push old mark position on local mark | |
| 1818 ring, and push mark on global mark ring. | |
| 1819 With argument, jump to mark, and pop a new position for mark off the ring | |
| 1820 \(does not affect global mark ring\). | |
| 1821 | |
| 442 | 1822 The mark ring is a per-buffer stack of marks, most recent first. Its |
| 1823 maximum length is controlled by `mark-ring-max'. Generally, when new | |
| 1824 marks are set, the current mark is pushed onto the stack. You can pop | |
| 1825 marks off the stack using \\[universal-argument] \\[set-mark-command]. The term \"ring\" is used because when | |
| 1826 you pop a mark off the stack, the current mark value is pushed onto the | |
| 1827 far end of the stack. If this is confusing, just think of the mark ring | |
| 1828 as a stack. | |
| 1829 | |
| 428 | 1830 Novice Emacs Lisp programmers often try to use the mark for the wrong |
| 1831 purposes. See the documentation of `set-mark' for more information." | |
| 1832 (interactive "P") | |
| 1833 (if (null arg) | |
| 1834 (push-mark nil nil t) | |
| 1835 (if (null (mark t)) | |
| 1836 (error "No mark set in this buffer") | |
| 442 | 1837 (if dont-record-current-mark (pop-mark)) |
| 428 | 1838 (goto-char (mark t)) |
| 1839 (pop-mark)))) | |
| 1840 | |
| 1841 ;; XEmacs: Extra parameter | |
| 1842 (defun push-mark (&optional location nomsg activate-region buffer) | |
| 1843 "Set mark at LOCATION (point, by default) and push old mark on mark ring. | |
| 1844 If the last global mark pushed was not in the current buffer, | |
| 1845 also push LOCATION on the global mark ring. | |
| 1846 Display `Mark set' unless the optional second arg NOMSG is non-nil. | |
| 1847 Activate mark if optional third arg ACTIVATE-REGION non-nil. | |
| 1848 | |
| 1849 Novice Emacs Lisp programmers often try to use the mark for the wrong | |
| 1850 purposes. See the documentation of `set-mark' for more information." | |
| 1851 (setq buffer (decode-buffer buffer)) ; XEmacs | |
| 442 | 1852 (if (or dont-record-current-mark (null (mark t buffer))) ; XEmacs |
| 428 | 1853 nil |
| 1854 ;; The save-excursion / set-buffer is necessary because mark-ring | |
| 1855 ;; is a buffer local variable | |
| 1856 (save-excursion | |
| 1857 (set-buffer buffer) | |
| 1858 (setq mark-ring (cons (copy-marker (mark-marker t buffer)) mark-ring)) | |
| 1859 (if (> (length mark-ring) mark-ring-max) | |
| 1860 (progn | |
| 1861 (move-marker (car (nthcdr mark-ring-max mark-ring)) nil buffer) | |
| 1862 (setcdr (nthcdr (1- mark-ring-max) mark-ring) nil))))) | |
| 1863 (set-mark (or location (point buffer)) buffer) | |
| 1864 ; (set-marker (mark-marker) (or location (point)) (current-buffer)) ; FSF | |
| 1865 ;; Now push the mark on the global mark ring. | |
| 442 | 1866 (if (and (not dont-record-current-mark) |
| 1867 (or (null global-mark-ring) | |
| 1868 (not (eq (marker-buffer (car global-mark-ring)) buffer)))) | |
| 428 | 1869 ;; The last global mark pushed wasn't in this same buffer. |
| 1870 (progn | |
| 1871 (setq global-mark-ring (cons (copy-marker (mark-marker t buffer)) | |
| 1872 global-mark-ring)) | |
| 1873 (if (> (length global-mark-ring) global-mark-ring-max) | |
| 1874 (progn | |
| 1875 (move-marker (car (nthcdr global-mark-ring-max global-mark-ring)) | |
| 1876 nil buffer) | |
| 1877 (setcdr (nthcdr (1- global-mark-ring-max) global-mark-ring) nil))))) | |
| 442 | 1878 (setq dont-record-current-mark |
| 1879 (not (not (or (and in-shifted-motion-command | |
| 1880 (memq 'shifted-motion-commands | |
| 1881 mark-ring-unrecorded-commands)) | |
| 1882 (memq this-command mark-ring-unrecorded-commands))))) | |
| 1883 (or dont-record-current-mark nomsg executing-kbd-macro | |
| 1884 (> (minibuffer-depth) 0) | |
| 428 | 1885 (display-message 'command "Mark set")) |
| 1886 (if activate-region | |
| 1887 (progn | |
| 1888 (setq zmacs-region-stays t) | |
| 1889 (zmacs-activate-region))) | |
| 1890 ; (if (or activate (not transient-mark-mode)) ; FSF | |
| 1891 ; (set-mark (mark t))) ; FSF | |
| 1892 nil) | |
| 1893 | |
| 1894 (defun pop-mark () | |
| 1895 "Pop off mark ring into the buffer's actual mark. | |
| 1896 Does not set point. Does nothing if mark ring is empty." | |
| 1897 (if mark-ring | |
| 1898 (progn | |
| 1899 (setq mark-ring (nconc mark-ring (list (copy-marker (mark-marker t))))) | |
| 1900 (set-mark (car mark-ring)) | |
| 1901 (move-marker (car mark-ring) nil) | |
| 1902 (if (null (mark t)) (ding)) | |
| 1903 (setq mark-ring (cdr mark-ring))))) | |
| 1904 | |
| 1905 (define-function 'exchange-dot-and-mark 'exchange-point-and-mark) | |
| 1906 (defun exchange-point-and-mark (&optional dont-activate-region) | |
| 1907 "Put the mark where point is now, and point where the mark is now. | |
| 1908 The mark is activated unless DONT-ACTIVATE-REGION is non-nil." | |
| 1909 (interactive nil) | |
| 1910 (let ((omark (mark t))) | |
| 1911 (if (null omark) | |
| 1912 (error "No mark set in this buffer")) | |
| 1913 (set-mark (point)) | |
| 1914 (goto-char omark) | |
| 1915 (or dont-activate-region (zmacs-activate-region)) ; XEmacs | |
| 1916 nil)) | |
| 1917 | |
| 1918 ;; XEmacs | |
| 1919 (defun mark-something (mark-fn movement-fn arg) | |
| 1920 "internal function used by mark-sexp, mark-word, etc." | |
| 1921 (let (newmark (pushp t)) | |
| 1922 (save-excursion | |
| 1923 (if (and (eq last-command mark-fn) (mark)) | |
| 1924 ;; Extend the previous state in the same direction: | |
| 1925 (progn | |
| 1926 (if (< (mark) (point)) (setq arg (- arg))) | |
| 1927 (goto-char (mark)) | |
| 1928 (setq pushp nil))) | |
| 1929 (funcall movement-fn arg) | |
| 1930 (setq newmark (point))) | |
| 1931 (if pushp | |
| 1932 (push-mark newmark nil t) | |
| 1933 ;; Do not mess with the mark stack, but merely adjust the previous state: | |
| 1934 (set-mark newmark) | |
| 1935 (activate-region)))) | |
| 1936 | |
| 1937 ;(defun transient-mark-mode (arg) | |
| 1938 ; "Toggle Transient Mark mode. | |
| 1939 ;With arg, turn Transient Mark mode on if arg is positive, off otherwise. | |
| 1940 ; | |
| 1941 ;In Transient Mark mode, when the mark is active, the region is highlighted. | |
| 1942 ;Changing the buffer \"deactivates\" the mark. | |
| 1943 ;So do certain other operations that set the mark | |
| 1944 ;but whose main purpose is something else--for example, | |
| 1945 ;incremental search, \\[beginning-of-buffer], and \\[end-of-buffer]." | |
| 1946 ; (interactive "P") | |
| 1947 ; (setq transient-mark-mode | |
| 1948 ; (if (null arg) | |
| 1949 ; (not transient-mark-mode) | |
| 1950 ; (> (prefix-numeric-value arg) 0)))) | |
| 1951 | |
| 1952 (defun pop-global-mark () | |
| 1953 "Pop off global mark ring and jump to the top location." | |
| 1954 (interactive) | |
| 1955 ;; Pop entries which refer to non-existent buffers. | |
| 1956 (while (and global-mark-ring (not (marker-buffer (car global-mark-ring)))) | |
| 1957 (setq global-mark-ring (cdr global-mark-ring))) | |
| 1958 (or global-mark-ring | |
| 1959 (error "No global mark set")) | |
| 1960 (let* ((marker (car global-mark-ring)) | |
| 1961 (buffer (marker-buffer marker)) | |
| 1962 (position (marker-position marker))) | |
| 1963 (setq global-mark-ring (nconc (cdr global-mark-ring) | |
| 1964 (list (car global-mark-ring)))) | |
| 1965 (set-buffer buffer) | |
| 1966 (or (and (>= position (point-min)) | |
| 1967 (<= position (point-max))) | |
| 1968 (widen)) | |
| 1969 (goto-char position) | |
| 1970 (switch-to-buffer buffer))) | |
| 1971 | |
| 1972 | |
| 1973 (defcustom signal-error-on-buffer-boundary t | |
| 462 | 1974 "*If Non-nil, beep or signal an error when moving past buffer boundary. |
| 428 | 1975 The commands that honor this variable are |
| 1976 | |
| 1977 forward-char-command | |
| 1978 backward-char-command | |
| 1979 next-line | |
| 1980 previous-line | |
| 1981 scroll-up-command | |
| 1982 scroll-down-command" | |
| 1983 :type 'boolean | |
| 1984 :group 'editing-basics) | |
| 1985 | |
| 3361 | 1986 (defcustom next-line-add-newlines nil |
| 428 | 1987 "*If non-nil, `next-line' inserts newline when the point is at end of buffer. |
| 3361 | 1988 This behavior used to be the default, but is now considered an unnecessary and |
| 1989 unwanted side-effect." | |
| 428 | 1990 :type 'boolean |
| 1991 :group 'editing-basics) | |
| 1992 | |
| 442 | 1993 (defcustom shifted-motion-keys-select-region t |
| 1994 "*If non-nil, shifted motion keys select text, like in MS Windows. | |
| 462 | 1995 |
| 1996 More specifically, if a keystroke that matches one of the key | |
| 1997 specifications in `motion-keys-for-shifted-motion' is pressed along | |
| 1998 with the Shift key, and the command invoked moves the cursor and | |
| 1999 preserves the active region (see `zmacs-region-stays'), the | |
| 2000 intervening text will be added to the active region. | |
| 2001 | |
| 2002 When the region has been enabled or augmented as a result of a shifted | |
| 2003 motion key, an unshifted motion key will normally deselect the region. | |
| 2485 | 2004 However, if `unshifted-motion-keys-deselect-region' is nil, the region |
| 462 | 2005 will remain active, augmented by the characters moved over by this |
| 2006 motion key. | |
| 2007 | |
| 2008 This functionality is specifically interpreted in terms of keys, and | |
| 2009 *NOT* in terms of particular commands, because that produces the most | |
| 2010 intuitive behavior: `forward-char' will work with shifted motion | |
| 2011 when invoked by `right' but not `C-f', and user-written motion commands | |
| 2012 bound to motion keys will automatically work with shifted motion." | |
| 442 | 2013 :type 'boolean |
| 2014 :group 'editing-basics) | |
| 2015 | |
| 2016 (defcustom unshifted-motion-keys-deselect-region t | |
| 2017 "*If non-nil, unshifted motion keys deselect a shifted-motion region. | |
| 462 | 2018 This only occurs after a region has been selected or augmented using |
| 2019 shifted motion keys (not when using the traditional set-mark-then-move | |
| 2020 method), and has no effect if `shifted-motion-keys-select-region' is | |
| 2021 nil." | |
| 442 | 2022 :type 'boolean |
| 2023 :group 'editing-basics) | |
| 2024 | |
| 462 | 2025 (defcustom motion-keys-for-shifted-motion |
| 1261 | 2026 ;; meta-shift-home/end are NOT shifted motion commands. |
| 2027 '(left right up down (home) (control home) (meta control home) | |
| 2028 (end) (control end) (meta control end) prior next | |
| 2029 kp-left kp-right kp-up kp-down (kp-home) (control kp-home) | |
| 2030 (meta control kp-home) (kp-end) (control kp-end) (meta control kp-end) | |
| 2031 kp-prior kp-next) | |
| 462 | 2032 "*List of keys considered motion keys for the purpose of shifted selection. |
| 2033 When one of these keys is pressed along with the Shift key, and the | |
| 2034 command invoked moves the cursor and preserves the active region (see | |
| 2035 `zmacs-region-stays'), the intervening text will be added to the active | |
| 2036 region. See `shifted-motion-keys-select-region' for more details. | |
| 2037 | |
| 2038 Each entry should be a keysym or a list (MODIFIERS ... KEYSYM), | |
| 2039 i.e. zero or more modifiers followed by a keysym. When a keysym alone | |
| 2040 is given, a keystroke consisting of that keysym, with or without any | |
| 2041 modifiers, is considered a motion key. When the list form is given, | |
| 2042 only a keystroke with exactly those modifiers and no others (with the | |
| 2043 exception of the Shift key) is considered a motion key. | |
| 2044 | |
| 2045 NOTE: Currently, the keysym cannot be a non-alphabetic character key | |
| 2046 such as the `=/+' key. In any case, the shifted-motion paradigm does | |
| 2047 not make much sense with those keys. The keysym can, however, be an | |
| 2048 alphabetic key without problem, and you can specify the key using | |
| 2049 either a character or a symbol, uppercase or lowercase." | |
| 2050 :type '(repeat (choice (const :tag "normal cursor-pad (\"gray\") keys" | |
| 2051 :inline t | |
| 1261 | 2052 (left |
| 2053 right up down | |
| 2054 (home) (control home) (meta control home) | |
| 2055 (end) (control end) (meta control end) | |
| 2056 prior next)) | |
| 462 | 2057 (const :tag "keypad motion keys" |
| 2058 :inline t | |
| 1261 | 2059 (kp-left |
| 2060 kp-right kp-up kp-down | |
| 2061 (kp-home) (control kp-home) | |
| 2062 (meta control kp-home) | |
| 2063 (kp-end) (control kp-end) | |
| 2064 (meta control kp-end) | |
| 2065 kp-prior kp-next)) | |
| 462 | 2066 (const :tag "alphabetic motion keys" |
| 2067 :inline t | |
| 2068 ((control b) (control f) | |
| 2069 (control p) (control n) | |
| 2070 (control a) (control e) | |
| 2071 (control v) (meta v) | |
| 2072 (meta b) (meta f) | |
| 2073 (meta a) (meta e) | |
| 2074 (meta m) ; back-to-indentation | |
| 2075 (meta r) ; move-to-window-line | |
| 2076 (meta control b) (meta control f) | |
| 2077 (meta control p) (meta control n) | |
| 2078 (meta control a) (meta control e) | |
| 2079 (meta control d) ;; down-list | |
| 2080 (meta control u) ;; backward-up-list | |
| 2081 )) | |
| 2082 symbol)) | |
| 2083 :group 'editing-basics) | |
| 2084 | |
| 442 | 2085 (defun handle-pre-motion-command-current-command-is-motion () |
| 2086 (and (key-press-event-p last-input-event) | |
|
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2087 (labels |
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2088 ((keysyms-equal (a b) |
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2089 (when (and |
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2090 ;; As of now, none of the elements of |
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2091 ;; motion-keys-for-shifted-motion are non-symbols; |
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2092 ;; this redundant check saves a few hundred |
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2093 ;; funcalls on startup. |
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2094 (not (symbolp b)) |
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2095 (characterp b)) |
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2096 (setf (car char-list) b |
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2097 b (intern (concat char-list nil)))) |
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2098 (eq a b))) |
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2099 (declare (inline keysyms-equal) (special char-list)) |
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2100 (loop |
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2101 for keysym in motion-keys-for-shifted-motion |
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2102 with key = (event-key last-input-event) |
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2103 with mods = (delq 'shift (event-modifiers last-input-event)) |
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2104 with char-list = '(?a) ;; Some random character; the list will be |
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2105 ;; modified in the constants vector over |
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2106 ;; time. |
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2107 initially (if (and (not (symbolp key)) (characterp key)) |
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2108 (setf (car char-list) key |
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2109 key (intern (concat char-list nil)))) |
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2110 thereis (if (listp keysym) |
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2111 (and (equal mods (butlast keysym)) |
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2112 (keysyms-equal |
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2113 key (car (last keysym)))) |
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2114 (keysyms-equal key keysym)))))) |
| 444 | 2115 |
| 442 | 2116 (defun handle-pre-motion-command () |
| 462 | 2117 (if (and |
| 442 | 2118 (handle-pre-motion-command-current-command-is-motion) |
| 2119 zmacs-regions | |
| 2120 shifted-motion-keys-select-region | |
| 2121 (not (region-active-p)) | |
| 462 | 2122 ;; Special-case alphabetic keysyms, because the `shift' |
| 2123 ;; modifier does not appear on them. (Unfortunately, we have no | |
| 2124 ;; way of determining Shift-key status on non-alphabetic ASCII | |
| 2125 ;; keysyms. However, in this case, using Shift will invoke a | |
| 2126 ;; separate command from the non-shifted version, so the | |
| 2127 ;; "shifted motion" paradigm makes no sense.) | |
| 2128 (or (memq 'shift (event-modifiers last-input-event)) | |
| 2129 (let ((key (event-key last-input-event))) | |
| 2130 (and (characterp key) | |
| 2131 (not (eq key (downcase key))))))) | |
| 442 | 2132 (let ((in-shifted-motion-command t)) |
| 2133 (push-mark nil nil t)))) | |
| 2134 | |
| 2135 (defun handle-post-motion-command () | |
| 2136 (if | |
| 2137 (and | |
| 2138 (handle-pre-motion-command-current-command-is-motion) | |
| 2139 zmacs-regions | |
| 2140 (region-active-p)) | |
| 462 | 2141 ;; Special-case alphabetic keysyms, because the `shift' |
| 2142 ;; modifier does not appear on them. See above. | |
| 2143 (cond ((or (memq 'shift (event-modifiers last-input-event)) | |
| 2144 (let ((key (event-key last-input-event))) | |
| 2145 (and (characterp key) | |
| 2146 (not (eq key (downcase key)))))) | |
| 442 | 2147 (if shifted-motion-keys-select-region |
| 2148 (putf this-command-properties 'shifted-motion-command t)) | |
| 2149 (setq zmacs-region-stays t)) | |
| 2150 ((and (getf last-command-properties 'shifted-motion-command) | |
| 2151 unshifted-motion-keys-deselect-region) | |
| 487 | 2152 (setq zmacs-region-stays nil))))) |
| 442 | 2153 |
| 428 | 2154 (defun forward-char-command (&optional arg buffer) |
| 2155 "Move point right ARG characters (left if ARG negative) in BUFFER. | |
| 2156 On attempt to pass end of buffer, stop and signal `end-of-buffer'. | |
| 2157 On attempt to pass beginning of buffer, stop and signal `beginning-of-buffer'. | |
| 2158 Error signaling is suppressed if `signal-error-on-buffer-boundary' | |
| 462 | 2159 is nil. If BUFFER is nil, the current buffer is assumed. |
| 2160 | |
| 2161 The characters that are moved over may be added to the current selection | |
| 2162 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2163 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2164 the documentation for this variable for more details." | |
| 428 | 2165 (interactive "_p") |
| 2166 (if signal-error-on-buffer-boundary | |
| 2167 (forward-char arg buffer) | |
| 2168 (condition-case nil | |
| 2169 (forward-char arg buffer) | |
| 2170 (beginning-of-buffer nil) | |
| 2171 (end-of-buffer nil)))) | |
| 2172 | |
| 2173 (defun backward-char-command (&optional arg buffer) | |
| 2174 "Move point left ARG characters (right if ARG negative) in BUFFER. | |
| 2175 On attempt to pass end of buffer, stop and signal `end-of-buffer'. | |
| 2176 On attempt to pass beginning of buffer, stop and signal `beginning-of-buffer'. | |
| 2177 Error signaling is suppressed if `signal-error-on-buffer-boundary' | |
| 462 | 2178 is nil. If BUFFER is nil, the current buffer is assumed. |
| 2179 | |
| 2180 The characters that are moved over may be added to the current selection | |
| 2181 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2182 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2183 the documentation for this variable for more details." | |
| 428 | 2184 (interactive "_p") |
| 2185 (if signal-error-on-buffer-boundary | |
| 2186 (backward-char arg buffer) | |
| 2187 (condition-case nil | |
| 2188 (backward-char arg buffer) | |
| 2189 (beginning-of-buffer nil) | |
| 2190 (end-of-buffer nil)))) | |
| 2191 | |
| 442 | 2192 (defun scroll-up-one () |
| 2193 "Scroll text of current window upward one line. | |
| 2194 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 2195 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 2196 signaled. | |
| 2197 | |
| 2198 If `signal-error-on-buffer-boundary' is nil, attempts to scroll past buffer | |
| 2199 boundaries do not cause an error to be signaled." | |
| 2200 (interactive "_") | |
| 2201 (scroll-up-command 1)) | |
| 2202 | |
| 428 | 2203 (defun scroll-up-command (&optional n) |
| 444 | 2204 "Scroll current window upward N lines; or near full screen if N is nil. |
| 428 | 2205 A near full screen is `next-screen-context-lines' less than a full screen. |
| 444 | 2206 Negative N means scroll downward. |
| 428 | 2207 When calling from a program, supply a number as argument or nil. |
| 2208 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 2209 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 2210 signaled. | |
| 2211 | |
| 462 | 2212 The characters that are moved over may be added to the current selection |
| 2213 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2214 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2215 the documentation for this variable for more details. | |
| 2216 | |
| 428 | 2217 If `signal-error-on-buffer-boundary' is nil, attempts to scroll past buffer |
| 2218 boundaries do not cause an error to be signaled." | |
| 2219 (interactive "_P") | |
| 2220 (if signal-error-on-buffer-boundary | |
| 2221 (scroll-up n) | |
| 2222 (condition-case nil | |
| 2223 (scroll-up n) | |
| 2224 (beginning-of-buffer nil) | |
| 2225 (end-of-buffer nil)))) | |
| 2226 | |
| 442 | 2227 (defun scroll-down-one () |
| 2228 "Scroll text of current window downward one line. | |
| 2229 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 2230 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 2231 signaled. | |
| 2232 | |
| 2233 If `signal-error-on-buffer-boundary' is nil, attempts to scroll past buffer | |
| 2234 boundaries do not cause an error to be signaled." | |
| 2235 (interactive "_") | |
| 2236 (scroll-down-command 1)) | |
| 2237 | |
| 428 | 2238 (defun scroll-down-command (&optional n) |
| 444 | 2239 "Scroll current window downward N lines; or near full screen if N is nil. |
| 428 | 2240 A near full screen is `next-screen-context-lines' less than a full screen. |
| 444 | 2241 Negative N means scroll upward. |
| 428 | 2242 When calling from a program, supply a number as argument or nil. |
| 2243 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 2244 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 2245 signaled. | |
| 2246 | |
| 2247 If `signal-error-on-buffer-boundary' is nil, attempts to scroll past buffer | |
| 462 | 2248 boundaries do not cause an error to be signaled. |
| 2249 | |
| 2250 The characters that are moved over may be added to the current selection | |
| 2251 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2252 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2253 the documentation for this variable for more details." | |
| 428 | 2254 (interactive "_P") |
| 2255 (if signal-error-on-buffer-boundary | |
| 2256 (scroll-down n) | |
| 2257 (condition-case nil | |
| 2258 (scroll-down n) | |
| 2259 (beginning-of-buffer nil) | |
| 2260 (end-of-buffer nil)))) | |
| 2261 | |
| 444 | 2262 (defun next-line (count) |
| 2263 "Move cursor vertically down COUNT lines. | |
| 428 | 2264 If there is no character in the target line exactly under the current column, |
| 2265 the cursor is positioned after the character in that line which spans this | |
| 2266 column, or at the end of the line if it is not long enough. | |
| 2267 | |
| 2268 If there is no line in the buffer after this one, behavior depends on the | |
| 2269 value of `next-line-add-newlines'. If non-nil, it inserts a newline character | |
| 2270 to create a line, and moves the cursor to that line. Otherwise it moves the | |
| 2439 | 2271 cursor to the end of the buffer. If `signal-error-on-buffer-boundary' is |
| 2272 non-nil and you attempt to move past a buffer boundary, XEmacs will ring the | |
| 2273 bell using `ding'. | |
| 428 | 2274 |
| 2275 The command \\[set-goal-column] can be used to create | |
| 2276 a semipermanent goal column to which this command always moves. | |
| 2277 Then it does not try to move vertically. This goal column is stored | |
| 2278 in `goal-column', which is nil when there is none. | |
| 2279 | |
| 462 | 2280 The characters that are moved over may be added to the current selection |
| 2281 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2282 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2283 the documentation for this variable for more details. | |
| 2284 | |
| 428 | 2285 If you are thinking of using this in a Lisp program, consider |
| 2286 using `forward-line' instead. It is usually easier to use | |
| 2287 and more reliable (no dependence on goal column, etc.)." | |
| 442 | 2288 (interactive "_p") |
| 444 | 2289 (if (and next-line-add-newlines (= count 1)) |
| 428 | 2290 (let ((opoint (point))) |
| 2291 (end-of-line) | |
| 2292 (if (eobp) | |
| 2293 (newline 1) | |
| 2294 (goto-char opoint) | |
| 444 | 2295 (line-move count))) |
| 428 | 2296 (if (interactive-p) |
| 2297 ;; XEmacs: Not sure what to do about this. It's inconsistent. -sb | |
| 2298 (condition-case nil | |
| 444 | 2299 (line-move count) |
| 428 | 2300 ((beginning-of-buffer end-of-buffer) |
| 2301 (when signal-error-on-buffer-boundary | |
| 2302 (ding nil 'buffer-bound)))) | |
| 444 | 2303 (line-move count))) |
| 428 | 2304 nil) |
| 2305 | |
| 444 | 2306 (defun previous-line (count) |
| 2307 "Move cursor vertically up COUNT lines. | |
| 428 | 2308 If there is no character in the target line exactly over the current column, |
| 2309 the cursor is positioned after the character in that line which spans this | |
| 2310 column, or at the end of the line if it is not long enough. | |
| 2311 | |
| 2312 The command \\[set-goal-column] can be used to create | |
| 2313 a semipermanent goal column to which this command always moves. | |
| 2314 Then it does not try to move vertically. | |
| 2315 | |
| 462 | 2316 The characters that are moved over may be added to the current selection |
| 2317 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2318 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2319 the documentation for this variable for more details. | |
| 2320 | |
| 2439 | 2321 If `signal-error-on-buffer-boundary' is non-nil and you attempt to move past |
| 2322 a buffer boundary, XEmacs will ring the bell using `ding'. | |
| 2323 | |
| 428 | 2324 If you are thinking of using this in a Lisp program, consider using |
| 2325 `forward-line' with a negative argument instead. It is usually easier | |
| 2326 to use and more reliable (no dependence on goal column, etc.)." | |
| 442 | 2327 (interactive "_p") |
| 428 | 2328 (if (interactive-p) |
| 2329 (condition-case nil | |
| 444 | 2330 (line-move (- count)) |
| 428 | 2331 ((beginning-of-buffer end-of-buffer) |
| 2332 (when signal-error-on-buffer-boundary ; XEmacs | |
| 2333 (ding nil 'buffer-bound)))) | |
| 444 | 2334 (line-move (- count))) |
| 428 | 2335 nil) |
| 2336 | |
| 442 | 2337 (defcustom block-movement-size 6 |
| 2338 "*Number of lines that \"block movement\" commands (\\[forward-block-of-lines], \\[backward-block-of-lines]) move by." | |
| 2339 :type 'integer | |
| 2340 :group 'editing-basics) | |
| 2341 | |
| 2342 (defun backward-block-of-lines () | |
| 2343 "Move backward by one \"block\" of lines. | |
| 2344 The number of lines that make up a block is controlled by | |
| 462 | 2345 `block-movement-size', which defaults to 6. |
| 2346 | |
| 2347 The characters that are moved over may be added to the current selection | |
| 2348 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2349 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2350 the documentation for this variable for more details." | |
| 442 | 2351 (interactive "_") |
| 2352 (forward-line (- block-movement-size))) | |
| 2353 | |
| 2354 (defun forward-block-of-lines () | |
| 2355 "Move forward by one \"block\" of lines. | |
| 2356 The number of lines that make up a block is controlled by | |
| 462 | 2357 `block-movement-size', which defaults to 6. |
| 2358 | |
| 2359 The characters that are moved over may be added to the current selection | |
| 2360 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2361 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2362 the documentation for this variable for more details." | |
| 442 | 2363 (interactive "_") |
| 2364 (forward-line block-movement-size)) | |
| 2365 | |
| 428 | 2366 (defcustom track-eol nil |
| 2367 "*Non-nil means vertical motion starting at end of line keeps to ends of lines. | |
| 2368 This means moving to the end of each line moved onto. | |
| 2369 The beginning of a blank line does not count as the end of a line." | |
| 2370 :type 'boolean | |
| 2371 :group 'editing-basics) | |
| 2372 | |
| 2373 (defcustom goal-column nil | |
| 2374 "*Semipermanent goal column for vertical motion, as set by \\[set-goal-column], or nil." | |
| 2375 :type '(choice integer (const :tag "None" nil)) | |
| 2376 :group 'editing-basics) | |
| 2377 (make-variable-buffer-local 'goal-column) | |
| 2378 | |
| 2379 (defvar temporary-goal-column 0 | |
| 2380 "Current goal column for vertical motion. | |
| 2381 It is the column where point was | |
| 2382 at the start of current run of vertical motion commands. | |
| 2383 When the `track-eol' feature is doing its job, the value is 9999.") | |
| 2384 (make-variable-buffer-local 'temporary-goal-column) | |
| 2385 | |
| 2386 ;XEmacs: not yet ported, so avoid compiler warnings | |
| 2387 (eval-when-compile | |
| 2388 (defvar inhibit-point-motion-hooks)) | |
| 2389 | |
| 2390 (defcustom line-move-ignore-invisible nil | |
| 2391 "*Non-nil means \\[next-line] and \\[previous-line] ignore invisible lines. | |
| 2392 Use with care, as it slows down movement significantly. Outline mode sets this." | |
| 2393 :type 'boolean | |
| 2394 :group 'editing-basics) | |
| 2395 | |
| 2396 ;; This is the guts of next-line and previous-line. | |
| 444 | 2397 ;; Count says how many lines to move. |
| 2398 (defun line-move (count) | |
| 428 | 2399 ;; Don't run any point-motion hooks, and disregard intangibility, |
| 2400 ;; for intermediate positions. | |
| 2401 (let ((inhibit-point-motion-hooks t) | |
| 2402 (opoint (point)) | |
| 2403 new) | |
| 2404 (unwind-protect | |
| 2405 (progn | |
| 2406 (if (not (or (eq last-command 'next-line) | |
| 2407 (eq last-command 'previous-line))) | |
| 2408 (setq temporary-goal-column | |
| 2409 (if (and track-eol (eolp) | |
| 444 | 2410 ;; Don't count start of empty line as end of line |
| 428 | 2411 ;; unless we just did explicit end-of-line. |
| 2412 (or (not (bolp)) (eq last-command 'end-of-line))) | |
| 2413 9999 | |
| 2414 (current-column)))) | |
| 2415 (if (and (not (integerp selective-display)) | |
| 2416 (not line-move-ignore-invisible)) | |
| 2417 ;; Use just newline characters. | |
| 444 | 2418 (or (if (> count 0) |
| 2419 (progn (if (> count 1) (forward-line (1- count))) | |
| 2420 ;; This way of moving forward COUNT lines | |
| 428 | 2421 ;; verifies that we have a newline after the last one. |
| 2422 ;; It doesn't get confused by intangible text. | |
| 2423 (end-of-line) | |
| 2424 (zerop (forward-line 1))) | |
| 444 | 2425 (and (zerop (forward-line count)) |
| 428 | 2426 (bolp))) |
| 444 | 2427 (signal (if (< count 0) |
| 428 | 2428 'beginning-of-buffer |
| 2429 'end-of-buffer) | |
| 2430 nil)) | |
| 444 | 2431 ;; Move by count lines, but ignore invisible ones. |
| 2432 (while (> count 0) | |
| 428 | 2433 (end-of-line) |
| 2434 (and (zerop (vertical-motion 1)) | |
| 2435 (signal 'end-of-buffer nil)) | |
| 2436 ;; If the following character is currently invisible, | |
| 2437 ;; skip all characters with that same `invisible' property value. | |
| 2438 (while (and (not (eobp)) | |
| 2439 (let ((prop | |
| 2440 (get-char-property (point) 'invisible))) | |
| 2441 (if (eq buffer-invisibility-spec t) | |
| 2442 prop | |
| 2443 (or (memq prop buffer-invisibility-spec) | |
| 2444 (assq prop buffer-invisibility-spec))))) | |
| 2445 (if (get-text-property (point) 'invisible) | |
| 2446 (goto-char (next-single-property-change (point) 'invisible)) | |
| 2447 (goto-char (next-extent-change (point))))) ; XEmacs | |
| 444 | 2448 (setq count (1- count))) |
| 2449 (while (< count 0) | |
| 428 | 2450 (beginning-of-line) |
| 2451 (and (zerop (vertical-motion -1)) | |
| 2452 (signal 'beginning-of-buffer nil)) | |
| 2453 (while (and (not (bobp)) | |
| 2454 (let ((prop | |
| 2455 (get-char-property (1- (point)) 'invisible))) | |
| 2456 (if (eq buffer-invisibility-spec t) | |
| 2457 prop | |
| 2458 (or (memq prop buffer-invisibility-spec) | |
| 2459 (assq prop buffer-invisibility-spec))))) | |
| 2460 (if (get-text-property (1- (point)) 'invisible) | |
| 2461 (goto-char (previous-single-property-change (point) 'invisible)) | |
| 2462 (goto-char (previous-extent-change (point))))) ; XEmacs | |
| 444 | 2463 (setq count (1+ count)))) |
| 428 | 2464 (move-to-column (or goal-column temporary-goal-column))) |
| 2465 ;; Remember where we moved to, go back home, | |
| 2466 ;; then do the motion over again | |
| 2467 ;; in just one step, with intangibility and point-motion hooks | |
| 2468 ;; enabled this time. | |
| 2469 (setq new (point)) | |
| 2470 (goto-char opoint) | |
| 2471 (setq inhibit-point-motion-hooks nil) | |
| 2472 (goto-char new))) | |
| 2473 nil) | |
| 2474 | |
| 2475 ;;; Many people have said they rarely use this feature, and often type | |
| 2476 ;;; it by accident. Maybe it shouldn't even be on a key. | |
| 2477 ;; It's not on a key, as of 20.2. So no need for this. | |
| 2478 ;(put 'set-goal-column 'disabled t) | |
| 2479 | |
| 444 | 2480 (defun set-goal-column (column) |
| 428 | 2481 "Set the current horizontal position as a goal for \\[next-line] and \\[previous-line]. |
| 2482 Those commands will move to this position in the line moved to | |
| 2483 rather than trying to keep the same horizontal position. | |
| 2484 With a non-nil argument, clears out the goal column | |
| 2485 so that \\[next-line] and \\[previous-line] resume vertical motion. | |
| 2486 The goal column is stored in the variable `goal-column'." | |
| 2487 (interactive "_P") ; XEmacs | |
| 444 | 2488 (if column |
| 428 | 2489 (progn |
| 2490 (setq goal-column nil) | |
| 2491 (display-message 'command "No goal column")) | |
| 2492 (setq goal-column (current-column)) | |
| 2493 (lmessage 'command | |
| 444 | 2494 "Goal column %d (use %s with a prefix arg to unset it)" |
| 428 | 2495 goal-column |
| 2496 (substitute-command-keys "\\[set-goal-column]"))) | |
| 2497 nil) | |
| 2498 | |
| 2499 ;; deleted FSFmacs terminal randomness hscroll-point-visible stuff. | |
| 2500 ;; hscroll-step | |
| 2501 ;; hscroll-point-visible | |
| 2502 ;; hscroll-window-column | |
| 2503 ;; right-arrow | |
| 2504 ;; left-arrow | |
| 2505 | |
| 2506 (defun scroll-other-window-down (lines) | |
| 2507 "Scroll the \"other window\" down. | |
| 2508 For more details, see the documentation for `scroll-other-window'." | |
| 2509 (interactive "P") | |
| 2510 (scroll-other-window | |
| 2511 ;; Just invert the argument's meaning. | |
| 2512 ;; We can do that without knowing which window it will be. | |
| 2513 (if (eq lines '-) nil | |
| 2514 (if (null lines) '- | |
| 2515 (- (prefix-numeric-value lines)))))) | |
| 2516 ;(define-key esc-map [?\C-\S-v] 'scroll-other-window-down) | |
| 2517 | |
| 2518 (defun beginning-of-buffer-other-window (arg) | |
| 2519 "Move point to the beginning of the buffer in the other window. | |
| 2520 Leave mark at previous position. | |
| 2521 With arg N, put point N/10 of the way from the true beginning." | |
| 2522 (interactive "P") | |
| 2523 (let ((orig-window (selected-window)) | |
| 2524 (window (other-window-for-scrolling))) | |
| 2525 ;; We use unwind-protect rather than save-window-excursion | |
| 2526 ;; because the latter would preserve the things we want to change. | |
| 2527 (unwind-protect | |
| 2528 (progn | |
| 2529 (select-window window) | |
| 2530 ;; Set point and mark in that window's buffer. | |
| 2531 (beginning-of-buffer arg) | |
| 2532 ;; Set point accordingly. | |
| 2533 (recenter '(t))) | |
| 2534 (select-window orig-window)))) | |
| 2535 | |
| 2536 (defun end-of-buffer-other-window (arg) | |
| 2537 "Move point to the end of the buffer in the other window. | |
| 2538 Leave mark at previous position. | |
| 2539 With arg N, put point N/10 of the way from the true end." | |
| 2540 (interactive "P") | |
| 2541 ;; See beginning-of-buffer-other-window for comments. | |
| 2542 (let ((orig-window (selected-window)) | |
| 2543 (window (other-window-for-scrolling))) | |
| 2544 (unwind-protect | |
| 2545 (progn | |
| 2546 (select-window window) | |
| 2547 (end-of-buffer arg) | |
| 2548 (recenter '(t))) | |
| 2549 (select-window orig-window)))) | |
| 2550 | |
| 2551 (defun transpose-chars (arg) | |
| 2552 "Interchange characters around point, moving forward one character. | |
| 2553 With prefix arg ARG, effect is to take character before point | |
| 2554 and drag it forward past ARG other characters (backward if ARG negative). | |
| 2555 If no argument and at end of line, the previous two chars are exchanged." | |
| 2556 (interactive "*P") | |
| 446 | 2557 (and (null arg) (eolp) (backward-char 1)) |
| 428 | 2558 (transpose-subr 'forward-char (prefix-numeric-value arg))) |
| 2559 | |
| 2560 ;;; A very old implementation of transpose-chars from the old days ... | |
| 2561 (defun transpose-preceding-chars (arg) | |
| 2562 "Interchange characters before point. | |
| 2563 With prefix arg ARG, effect is to take character before point | |
| 2564 and drag it forward past ARG other characters (backward if ARG negative). | |
| 2565 If no argument and not at start of line, the previous two chars are exchanged." | |
| 2566 (interactive "*P") | |
| 446 | 2567 (and (null arg) (not (bolp)) (backward-char 1)) |
| 428 | 2568 (transpose-subr 'forward-char (prefix-numeric-value arg))) |
| 2569 | |
| 2570 | |
| 2571 (defun transpose-words (arg) | |
| 2572 "Interchange words around point, leaving point at end of them. | |
| 2573 With prefix arg ARG, effect is to take word before or around point | |
| 2574 and drag it forward past ARG other words (backward if ARG negative). | |
| 2575 If ARG is zero, the words around or after point and around or after mark | |
| 2576 are interchanged." | |
| 2577 (interactive "*p") | |
| 2578 (transpose-subr 'forward-word arg)) | |
| 2579 | |
| 2580 (defun transpose-sexps (arg) | |
| 2581 "Like \\[transpose-words] but applies to sexps. | |
| 2582 Does not work on a sexp that point is in the middle of | |
| 2583 if it is a list or string." | |
| 2584 (interactive "*p") | |
| 2585 (transpose-subr 'forward-sexp arg)) | |
| 2586 | |
| 613 | 2587 (defun Simple-forward-line-creating-newline () |
| 2588 ;; Move forward over a line, | |
| 2589 ;; but create a newline if none exists yet. | |
| 2590 (end-of-line) | |
| 2591 (if (eobp) | |
| 2592 (newline) | |
| 2593 (forward-char 1))) | |
| 2594 | |
| 2595 (defun Simple-transpose-lines-mover (arg) | |
| 2596 (if (= arg 1) | |
| 2597 (Simple-forward-line-creating-newline) | |
| 2598 (forward-line arg))) | |
| 2599 | |
| 428 | 2600 (defun transpose-lines (arg) |
| 2601 "Exchange current line and previous line, leaving point after both. | |
| 2602 With argument ARG, takes previous line and moves it past ARG lines. | |
| 2603 With argument 0, interchanges line point is in with line mark is in." | |
| 2604 (interactive "*p") | |
| 613 | 2605 (transpose-subr 'Simple-transpose-lines-mover arg)) |
| 428 | 2606 |
| 442 | 2607 (defun transpose-line-up (arg) |
| 2608 "Move current line one line up, leaving point at beginning of that line. | |
| 613 | 2609 With argument ARG, move it ARG lines up. This can be run repeatedly |
| 2610 to move the current line up a number of lines. | |
| 2611 | |
| 2612 If the region is active, move the region up one line (or ARG lines, | |
| 2613 if specified). The region will not be selected afterwards, but this | |
| 2614 command can still be run repeatedly to move the region up a number | |
| 2615 of lines." | |
| 442 | 2616 (interactive "*p") |
| 613 | 2617 (transpose-line-down (- arg))) |
| 442 | 2618 |
| 2619 (defun transpose-line-down (arg) | |
| 2620 "Move current line one line down, leaving point at beginning of that line. | |
| 613 | 2621 With argument ARG, move it ARG lines down. This can be run repeatedly |
| 2622 to move the current line down a number of lines. | |
| 2623 | |
| 2624 If the region is active, move the region down one line (or ARG lines, | |
| 2625 if specified). The region will not be selected afterwards, but this | |
| 2626 command can still be run repeatedly to move the region down a number | |
| 2627 of lines." | |
| 442 | 2628 (interactive "*p") |
| 613 | 2629 (if (or (region-active-p) |
| 2630 (getf last-command-properties 'transpose-region-by-line-command)) | |
| 2631 (progn | |
| 2632 (transpose-subr 'Simple-transpose-lines-mover arg t) | |
| 2633 (putf this-command-properties 'transpose-region-by-line-command t)) | |
| 2634 (Simple-forward-line-creating-newline) | |
| 2635 (transpose-subr 'Simple-transpose-lines-mover arg) | |
| 2636 (forward-line -1))) | |
| 2637 | |
| 2638 (defun transpose-subr (mover arg &optional move-region) | |
| 428 | 2639 (let (start1 end1 start2 end2) |
|
5567
3bc58dc9d688
Replace #'flet by #'labels where appropriate, core code.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5473
diff
changeset
|
2640 ;; XEmacs -- use labels instead of defining a separate function and |
| 613 | 2641 ;; relying on dynamic scope; use (mark t) etc; add code to support |
| 2642 ;; the new MOVE-REGION arg. | |
|
5567
3bc58dc9d688
Replace #'flet by #'labels where appropriate, core code.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5473
diff
changeset
|
2643 (labels ((transpose-subr-1 () |
|
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|
2644 (if (> (min end1 end2) (max start1 start2)) |
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|
2645 (error "Don't have two things to transpose")) |
|
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|
2646 (let ((word1 (buffer-substring start1 end1)) |
|
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changeset
|
2647 (word2 (buffer-substring start2 end2))) |
|
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diff
changeset
|
2648 (delete-region start2 end2) |
|
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diff
changeset
|
2649 (goto-char start2) |
|
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diff
changeset
|
2650 (insert word1) |
|
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|
2651 (goto-char (if (< start1 start2) start1 |
|
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|
2652 (+ start1 (- (length word1) (length word2))))) |
|
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|
2653 (delete-char (length word1)) |
|
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diff
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|
2654 (insert word2)))) |
| 442 | 2655 (if (= arg 0) |
| 2656 (progn | |
| 2657 (save-excursion | |
| 2658 (funcall mover 1) | |
| 2659 (setq end2 (point)) | |
| 2660 (funcall mover -1) | |
| 2661 (setq start2 (point)) | |
| 613 | 2662 (goto-char (mark t)) |
| 442 | 2663 (funcall mover 1) |
| 2664 (setq end1 (point)) | |
| 2665 (funcall mover -1) | |
| 2666 (setq start1 (point)) | |
| 2667 (transpose-subr-1)) | |
| 613 | 2668 (exchange-point-and-mark t))) |
| 2669 (if move-region | |
| 2670 (let ((rbeg (region-beginning)) | |
| 2671 (rend (region-end))) | |
| 2672 (while (> arg 0) | |
| 2673 (goto-char rend) | |
| 2674 (funcall mover 1) | |
| 2675 (setq end2 (point)) | |
| 2676 (funcall mover -1) | |
| 2677 (setq start2 (point)) | |
| 2678 (setq start1 rbeg end1 rend) | |
| 2679 (transpose-subr-1) | |
| 2680 (incf rbeg (- end2 start2)) | |
| 2681 (incf rend (- end2 start2)) | |
| 2682 (setq arg (1- arg))) | |
| 2683 (while (< arg 0) | |
| 2684 (goto-char rbeg) | |
| 2685 (funcall mover -1) | |
| 2686 (setq start1 (point)) | |
| 2687 (funcall mover 1) | |
| 2688 (setq end1 (point)) | |
| 2689 (setq start2 rbeg end2 rend) | |
| 2690 (transpose-subr-1) | |
| 2691 (decf rbeg (- end1 start1)) | |
| 2692 (decf rend (- end1 start1)) | |
| 2693 (setq arg (1+ arg))) | |
| 2694 (set-mark rbeg) | |
| 2695 (goto-char rend)) | |
| 2696 (while (> arg 0) | |
| 2697 (funcall mover -1) | |
| 2698 (setq start1 (point)) | |
| 2699 (funcall mover 1) | |
| 2700 (setq end1 (point)) | |
| 2701 (funcall mover 1) | |
| 2702 (setq end2 (point)) | |
| 2703 (funcall mover -1) | |
| 2704 (setq start2 (point)) | |
| 2705 (transpose-subr-1) | |
| 2706 (goto-char end2) | |
| 2707 (setq arg (1- arg))) | |
| 2708 (while (< arg 0) | |
| 2709 (funcall mover -1) | |
| 2710 (setq start2 (point)) | |
| 2711 (funcall mover -1) | |
| 2712 (setq start1 (point)) | |
| 2713 (funcall mover 1) | |
| 2714 (setq end1 (point)) | |
| 2715 (funcall mover 1) | |
| 2716 (setq end2 (point)) | |
| 2717 (transpose-subr-1) | |
| 2718 (setq arg (1+ arg))))))) | |
| 442 | 2719 |
| 428 | 2720 |
| 2721 ;; XEmacs | |
| 2722 (defun prefix-region (prefix) | |
| 2723 "Add a prefix string to each line between mark and point." | |
| 2724 (interactive "sPrefix string: ") | |
| 2725 (if prefix | |
| 2726 (let ((count (count-lines (mark) (point)))) | |
| 2727 (goto-char (min (mark) (point))) | |
| 2728 (while (> count 0) | |
| 2729 (setq count (1- count)) | |
| 2730 (beginning-of-line 1) | |
| 2731 (insert prefix) | |
| 2732 (end-of-line 1) | |
| 2733 (forward-char 1))))) | |
| 2734 | |
| 2735 | |
| 446 | 2736 (defun backward-word (&optional count buffer) |
| 2737 "Move point backward COUNT words (forward if COUNT is negative). | |
| 2738 Normally t is returned, but if an edge of the buffer is reached, | |
| 2739 point is left there and nil is returned. | |
| 2740 | |
| 462 | 2741 COUNT defaults to 1, and BUFFER defaults to the current buffer. |
| 2742 | |
| 2743 The characters that are moved over may be added to the current selection | |
| 2744 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 2745 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 2746 the documentation for this variable for more details." | |
| 446 | 2747 (interactive "_p") |
| 2748 (forward-word (- (or count 1)) buffer)) | |
| 2749 | |
| 2750 (defun mark-word (&optional count) | |
| 2751 "Mark the text from point until encountering the end of a word. | |
| 2752 With optional argument COUNT, mark COUNT words." | |
| 428 | 2753 (interactive "p") |
| 446 | 2754 (mark-something 'mark-word 'forward-word count)) |
| 2755 | |
| 844 | 2756 (defcustom kill-word-into-kill-ring t |
| 2757 "*Non-nil means `kill-word' saves word killed into kill ring. | |
| 2758 \(Normally, this also affects the clipboard.) | |
| 2759 Nil means word is just deleted, without being remembered. | |
| 2760 This also applies to `backward-kill-word' and `backward-or-forward-kill-word'." | |
| 2761 :type 'boolean | |
| 2762 :group 'editing-basics) | |
| 2763 | |
| 446 | 2764 (defun kill-word (&optional count) |
| 428 | 2765 "Kill characters forward until encountering the end of a word. |
| 446 | 2766 With optional argument COUNT, do this that many times." |
| 2767 (interactive "*p") | |
| 844 | 2768 (if kill-word-into-kill-ring |
| 2769 (kill-region (point) (save-excursion (forward-word count) (point))) | |
| 2770 (delete-region (point) (save-excursion (forward-word count) (point))))) | |
| 446 | 2771 |
| 2772 (defun backward-kill-word (&optional count) | |
| 2773 "Kill characters backward until encountering the end of a word. | |
| 428 | 2774 With argument, do this that many times." |
| 2775 (interactive "*p") | |
| 446 | 2776 (kill-word (- (or count 1)))) |
| 428 | 2777 |
| 2778 (defun current-word (&optional strict) | |
| 2779 "Return the word point is on (or a nearby word) as a string. | |
| 2780 If optional arg STRICT is non-nil, return nil unless point is within | |
| 2781 or adjacent to a word. | |
| 2782 If point is not between two word-constituent characters, but immediately | |
| 2783 follows one, move back first. | |
| 2784 Otherwise, if point precedes a word constituent, move forward first. | |
| 2785 Otherwise, move backwards until a word constituent is found and get that word; | |
| 2786 if you a newlines is reached first, move forward instead." | |
| 2787 (save-excursion | |
| 2788 (let ((oldpoint (point)) (start (point)) (end (point))) | |
| 2789 (skip-syntax-backward "w_") (setq start (point)) | |
| 2790 (goto-char oldpoint) | |
| 2791 (skip-syntax-forward "w_") (setq end (point)) | |
| 2792 (if (and (eq start oldpoint) (eq end oldpoint)) | |
| 2793 ;; Point is neither within nor adjacent to a word. | |
| 2794 (and (not strict) | |
| 2795 (progn | |
| 2796 ;; Look for preceding word in same line. | |
| 2797 (skip-syntax-backward "^w_" | |
| 2798 (save-excursion | |
| 2799 (beginning-of-line) (point))) | |
| 2800 (if (bolp) | |
| 2801 ;; No preceding word in same line. | |
| 2802 ;; Look for following word in same line. | |
| 2803 (progn | |
| 2804 (skip-syntax-forward "^w_" | |
| 2805 (save-excursion | |
| 2806 (end-of-line) (point))) | |
| 2807 (setq start (point)) | |
| 2808 (skip-syntax-forward "w_") | |
| 2809 (setq end (point))) | |
| 2810 (setq end (point)) | |
| 2811 (skip-syntax-backward "w_") | |
| 2812 (setq start (point))) | |
| 2813 (buffer-substring start end))) | |
| 2814 (buffer-substring start end))))) | |
| 2815 | |
| 2816 (defcustom fill-prefix nil | |
| 2817 "*String for filling to insert at front of new line, or nil for none. | |
| 2818 Setting this variable automatically makes it local to the current buffer." | |
| 2819 :type '(choice (const :tag "None" nil) | |
| 2820 string) | |
| 2821 :group 'fill) | |
| 2822 (make-variable-buffer-local 'fill-prefix) | |
| 2823 | |
| 2824 (defcustom auto-fill-inhibit-regexp nil | |
| 2825 "*Regexp to match lines which should not be auto-filled." | |
| 2826 :type '(choice (const :tag "None" nil) | |
| 2827 regexp) | |
| 2828 :group 'fill) | |
| 2829 | |
| 2830 (defvar comment-line-break-function 'indent-new-comment-line | |
| 2831 "*Mode-specific function which line breaks and continues a comment. | |
| 2832 | |
| 2833 This function is only called during auto-filling of a comment section. | |
| 2834 The function should take a single optional argument which is a flag | |
| 2835 indicating whether soft newlines should be inserted.") | |
| 2836 | |
| 2837 ;; This function is the auto-fill-function of a buffer | |
| 2838 ;; when Auto-Fill mode is enabled. | |
| 2839 ;; It returns t if it really did any work. | |
| 2840 ;; XEmacs: This function is totally different. | |
| 2841 (defun do-auto-fill () | |
| 2842 (let (give-up) | |
| 2843 (or (and auto-fill-inhibit-regexp | |
| 2844 (save-excursion (beginning-of-line) | |
| 2845 (looking-at auto-fill-inhibit-regexp))) | |
| 2846 (while (and (not give-up) (> (current-column) fill-column)) | |
| 2847 ;; Determine where to split the line. | |
| 2848 (let ((fill-prefix fill-prefix) | |
| 2849 (fill-point | |
| 2850 (let ((opoint (point)) | |
| 2851 bounce | |
| 502 | 2852 (re-break-point ;; Kinsoku processing |
| 2853 (if (featurep 'mule) | |
| 771 | 2854 (with-boundp 'word-across-newline |
| 2855 (concat "[ \t\n]\\|" word-across-newline | |
| 2856 ".\\|." word-across-newline)) | |
| 502 | 2857 "[ \t\n]")) |
| 428 | 2858 (first t)) |
| 2859 (save-excursion | |
| 2860 (move-to-column (1+ fill-column)) | |
| 2861 ;; Move back to a word boundary. | |
| 2862 (while (or first | |
| 2863 ;; If this is after period and a single space, | |
| 2864 ;; move back once more--we don't want to break | |
| 2865 ;; the line there and make it look like a | |
| 2866 ;; sentence end. | |
| 2867 (and (not (bobp)) | |
| 2868 (not bounce) | |
| 2869 sentence-end-double-space | |
| 446 | 2870 (save-excursion (backward-char 1) |
| 428 | 2871 (and (looking-at "\\. ") |
| 2872 (not (looking-at "\\. ")))))) | |
| 2873 (setq first nil) | |
| 502 | 2874 ;; XEmacs: change for Kinsoku processing |
| 428 | 2875 (fill-move-backward-to-break-point re-break-point) |
| 2876 ;; If we find nowhere on the line to break it, | |
| 2877 ;; break after one word. Set bounce to t | |
| 2878 ;; so we will not keep going in this while loop. | |
| 2879 (if (bolp) | |
| 2880 (progn | |
| 502 | 2881 ;; XEmacs: change for Kinsoku processing |
| 428 | 2882 (fill-move-forward-to-break-point re-break-point |
| 2883 opoint) | |
| 2884 (setq bounce t))) | |
| 2885 (skip-chars-backward " \t")) | |
| 2886 (if (and (featurep 'mule) | |
| 502 | 2887 (or bounce (bolp))) |
| 2888 (declare-fboundp (kinsoku-process))) | |
| 428 | 2889 ;; Let fill-point be set to the place where we end up. |
| 2890 (point))))) | |
| 2891 | |
| 2892 ;; I'm not sure why Stig made this change but it breaks | |
| 2893 ;; auto filling in at least C mode so I'm taking it back | |
| 2894 ;; out. --cet | |
| 2895 ;; XEmacs - adaptive fill. | |
| 2896 ;;(maybe-adapt-fill-prefix | |
| 2897 ;; (or from (setq from (save-excursion (beginning-of-line) | |
| 2898 ;; (point)))) | |
| 2899 ;; (or to (setq to (save-excursion (beginning-of-line 2) | |
| 2900 ;; (point)))) | |
| 2901 ;; t) | |
| 2902 | |
| 2903 ;; If that place is not the beginning of the line, | |
| 2904 ;; break the line there. | |
| 2905 (if (save-excursion | |
| 2906 (goto-char fill-point) | |
| 502 | 2907 ;; during kinsoku processing it is possible to move beyond |
| 2908 (not (or (bolp) (eolp)))) | |
| 428 | 2909 (let ((prev-column (current-column))) |
| 2910 ;; If point is at the fill-point, do not `save-excursion'. | |
| 2911 ;; Otherwise, if a comment prefix or fill-prefix is inserted, | |
| 2912 ;; point will end up before it rather than after it. | |
| 2913 (if (save-excursion | |
| 2914 (skip-chars-backward " \t") | |
| 2915 (= (point) fill-point)) | |
| 2916 ;; 1999-09-17 hniksic: turn off Kinsoku until | |
| 2917 ;; it's debugged. | |
| 444 | 2918 (funcall comment-line-break-function) |
| 502 | 2919 ;; XEmacs: Kinsoku processing |
| 428 | 2920 ; ;(indent-new-comment-line) |
| 2921 ; (let ((spacep (memq (char-before (point)) '(?\ ?\t)))) | |
| 2922 ; (funcall comment-line-break-function) | |
| 2923 ; ;; if user type space explicitly, leave SPC | |
| 2924 ; ;; even if there is no WAN. | |
| 2925 ; (if spacep | |
| 2926 ; (save-excursion | |
| 2927 ; (goto-char fill-point) | |
| 2928 ; ;; put SPC except that there is SPC | |
| 2929 ; ;; already or there is sentence end. | |
| 2930 ; (or (memq (char-after (point)) '(?\ ?\t)) | |
| 2931 ; (fill-end-of-sentence-p) | |
| 2932 ; (insert ?\ ))))) | |
| 2933 (save-excursion | |
| 2934 (goto-char fill-point) | |
| 2935 (funcall comment-line-break-function))) | |
| 2936 ;; If making the new line didn't reduce the hpos of | |
| 2937 ;; the end of the line, then give up now; | |
| 2938 ;; trying again will not help. | |
| 2939 (if (>= (current-column) prev-column) | |
| 2940 (setq give-up t))) | |
| 2941 ;; No place to break => stop trying. | |
| 2942 (setq give-up t))))))) | |
| 2943 | |
| 2944 ;; Put FSF one in until I can one or the other working properly, then the | |
| 2945 ;; other one is history. | |
| 2946 ;(defun fsf:do-auto-fill () | |
| 2947 ; (let (fc justify | |
| 2948 ; ;; bol | |
| 2949 ; give-up | |
| 2950 ; (fill-prefix fill-prefix)) | |
| 2951 ; (if (or (not (setq justify (current-justification))) | |
| 2952 ; (null (setq fc (current-fill-column))) | |
| 2953 ; (and (eq justify 'left) | |
| 2954 ; (<= (current-column) fc)) | |
| 2955 ; (save-excursion (beginning-of-line) | |
| 2956 ; ;; (setq bol (point)) | |
| 2957 ; (and auto-fill-inhibit-regexp | |
| 2958 ; (looking-at auto-fill-inhibit-regexp)))) | |
| 2959 ; nil ;; Auto-filling not required | |
| 2960 ; (if (memq justify '(full center right)) | |
| 2961 ; (save-excursion (unjustify-current-line))) | |
| 2962 | |
| 2963 ; ;; Choose a fill-prefix automatically. | |
| 2964 ; (if (and adaptive-fill-mode | |
| 2965 ; (or (null fill-prefix) (string= fill-prefix ""))) | |
| 2966 ; (let ((prefix | |
| 2967 ; (fill-context-prefix | |
| 2968 ; (save-excursion (backward-paragraph 1) (point)) | |
| 2969 ; (save-excursion (forward-paragraph 1) (point)) | |
| 2970 ; ;; Don't accept a non-whitespace fill prefix | |
| 2971 ; ;; from the first line of a paragraph. | |
| 2972 ; "^[ \t]*$"))) | |
| 2973 ; (and prefix (not (equal prefix "")) | |
| 2974 ; (setq fill-prefix prefix)))) | |
| 2975 | |
| 2976 ; (while (and (not give-up) (> (current-column) fc)) | |
| 2977 ; ;; Determine where to split the line. | |
| 2978 ; (let ((fill-point | |
| 2979 ; (let ((opoint (point)) | |
| 2980 ; bounce | |
| 2981 ; (first t)) | |
| 2982 ; (save-excursion | |
| 2983 ; (move-to-column (1+ fc)) | |
| 2984 ; ;; Move back to a word boundary. | |
| 2985 ; (while (or first | |
| 2986 ; ;; If this is after period and a single space, | |
| 2987 ; ;; move back once more--we don't want to break | |
| 2988 ; ;; the line there and make it look like a | |
| 2989 ; ;; sentence end. | |
| 2990 ; (and (not (bobp)) | |
| 2991 ; (not bounce) | |
| 2992 ; sentence-end-double-space | |
| 446 | 2993 ; (save-excursion (backward-char 1) |
| 428 | 2994 ; (and (looking-at "\\. ") |
| 2995 ; (not (looking-at "\\. ")))))) | |
| 2996 ; (setq first nil) | |
| 2997 ; (skip-chars-backward "^ \t\n") | |
| 2998 ; ;; If we find nowhere on the line to break it, | |
| 2999 ; ;; break after one word. Set bounce to t | |
| 3000 ; ;; so we will not keep going in this while loop. | |
| 3001 ; (if (bolp) | |
| 3002 ; (progn | |
| 3003 ; (re-search-forward "[ \t]" opoint t) | |
| 3004 ; (setq bounce t))) | |
| 3005 ; (skip-chars-backward " \t")) | |
| 3006 ; ;; Let fill-point be set to the place where we end up. | |
| 3007 ; (point))))) | |
| 3008 ; ;; If that place is not the beginning of the line, | |
| 3009 ; ;; break the line there. | |
| 3010 ; (if (save-excursion | |
| 3011 ; (goto-char fill-point) | |
| 3012 ; (not (bolp))) | |
| 3013 ; (let ((prev-column (current-column))) | |
| 3014 ; ;; If point is at the fill-point, do not `save-excursion'. | |
| 3015 ; ;; Otherwise, if a comment prefix or fill-prefix is inserted, | |
| 3016 ; ;; point will end up before it rather than after it. | |
| 3017 ; (if (save-excursion | |
| 3018 ; (skip-chars-backward " \t") | |
| 3019 ; (= (point) fill-point)) | |
| 3020 ; (funcall comment-line-break-function t) | |
| 3021 ; (save-excursion | |
| 3022 ; (goto-char fill-point) | |
| 3023 ; (funcall comment-line-break-function t))) | |
| 3024 ; ;; Now do justification, if required | |
| 3025 ; (if (not (eq justify 'left)) | |
| 3026 ; (save-excursion | |
| 3027 ; (end-of-line 0) | |
| 3028 ; (justify-current-line justify nil t))) | |
| 3029 ; ;; If making the new line didn't reduce the hpos of | |
| 3030 ; ;; the end of the line, then give up now; | |
| 3031 ; ;; trying again will not help. | |
| 3032 ; (if (>= (current-column) prev-column) | |
| 3033 ; (setq give-up t))) | |
| 3034 ; ;; No place to break => stop trying. | |
| 3035 ; (setq give-up t)))) | |
| 3036 ; ;; Justify last line. | |
| 3037 ; (justify-current-line justify t t) | |
| 3038 ; t))) | |
| 3039 | |
| 3040 (defvar normal-auto-fill-function 'do-auto-fill | |
| 3041 "The function to use for `auto-fill-function' if Auto Fill mode is turned on. | |
| 3042 Some major modes set this.") | |
| 3043 | |
| 3044 (defun auto-fill-mode (&optional arg) | |
| 3045 "Toggle auto-fill mode. | |
| 3046 With arg, turn auto-fill mode on if and only if arg is positive. | |
| 3047 In Auto-Fill mode, inserting a space at a column beyond `current-fill-column' | |
| 3048 automatically breaks the line at a previous space. | |
| 3049 | |
| 3050 The value of `normal-auto-fill-function' specifies the function to use | |
| 3051 for `auto-fill-function' when turning Auto Fill mode on." | |
| 3052 (interactive "P") | |
| 3053 (prog1 (setq auto-fill-function | |
| 3054 (if (if (null arg) | |
| 3055 (not auto-fill-function) | |
| 3056 (> (prefix-numeric-value arg) 0)) | |
| 3057 normal-auto-fill-function | |
| 3058 nil)) | |
| 3059 (redraw-modeline))) | |
| 3060 | |
| 3061 ;; This holds a document string used to document auto-fill-mode. | |
| 3062 (defun auto-fill-function () | |
| 3063 "Automatically break line at a previous space, in insertion of text." | |
| 3064 nil) | |
| 3065 | |
| 3066 (defun turn-on-auto-fill () | |
| 3067 "Unconditionally turn on Auto Fill mode." | |
| 444 | 3068 (interactive) |
| 428 | 3069 (auto-fill-mode 1)) |
| 3070 | |
|
4681
64ac4337298b
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Malcolm Purvis <malcolmp@xemacs.org>
parents:
4680
diff
changeset
|
3071 (defun turn-off-auto-fill () |
|
64ac4337298b
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Malcolm Purvis <malcolmp@xemacs.org>
parents:
4680
diff
changeset
|
3072 "Unconditionally turn off Auto Fill mode." |
|
64ac4337298b
Implement turn-off-auto-fill.
Malcolm Purvis <malcolmp@xemacs.org>
parents:
4680
diff
changeset
|
3073 (interactive) |
|
64ac4337298b
Implement turn-off-auto-fill.
Malcolm Purvis <malcolmp@xemacs.org>
parents:
4680
diff
changeset
|
3074 (auto-fill-mode -1)) |
|
64ac4337298b
Implement turn-off-auto-fill.
Malcolm Purvis <malcolmp@xemacs.org>
parents:
4680
diff
changeset
|
3075 |
| 428 | 3076 (defun set-fill-column (arg) |
| 3077 "Set `fill-column' to specified argument. | |
| 3078 Just \\[universal-argument] as argument means to use the current column | |
| 3079 The variable `fill-column' has a separate value for each buffer." | |
| 3080 (interactive "_P") ; XEmacs | |
| 3081 (cond ((integerp arg) | |
| 3082 (setq fill-column arg)) | |
| 3083 ((consp arg) | |
| 3084 (setq fill-column (current-column))) | |
| 3085 ;; Disallow missing argument; it's probably a typo for C-x C-f. | |
| 3086 (t | |
| 3087 (error "set-fill-column requires an explicit argument"))) | |
| 3088 (lmessage 'command "fill-column set to %d" fill-column)) | |
| 3089 | |
| 1333 | 3090 |
| 3091 ;; BEGIN SYNCHED WITH FSF 21.2. | |
| 3092 | |
| 428 | 3093 (defun set-selective-display (arg) |
| 3094 "Set `selective-display' to ARG; clear it if no arg. | |
| 3095 When the value of `selective-display' is a number > 0, | |
| 3096 lines whose indentation is >= that value are not displayed. | |
| 3097 The variable `selective-display' has a separate value for each buffer." | |
| 3098 (interactive "P") | |
| 3099 (if (eq selective-display t) | |
| 3100 (error "selective-display already in use for marked lines")) | |
| 3101 (let ((current-vpos | |
| 3102 (save-restriction | |
| 3103 (narrow-to-region (point-min) (point)) | |
| 3104 (goto-char (window-start)) | |
| 3105 (vertical-motion (window-height))))) | |
| 3106 (setq selective-display | |
| 3107 (and arg (prefix-numeric-value arg))) | |
| 3108 (recenter current-vpos)) | |
| 3109 (set-window-start (selected-window) (window-start (selected-window))) | |
| 3110 ;; #### doesn't localize properly: | |
| 3111 (princ "selective-display set to " t) | |
| 3112 (prin1 selective-display t) | |
| 3113 (princ "." t)) | |
| 3114 | |
| 3115 ;; XEmacs | |
| 3116 (defun nuke-selective-display () | |
| 3117 "Ensure that the buffer is not in selective-display mode. | |
| 3118 If `selective-display' is t, then restore the buffer text to its original | |
| 3119 state before disabling selective display." | |
| 3120 ;; by Stig@hackvan.com | |
| 3121 (interactive) | |
| 3122 (and (eq t selective-display) | |
| 3123 (save-excursion | |
| 3124 (save-restriction | |
| 3125 (widen) | |
| 3126 (goto-char (point-min)) | |
| 3127 (let ((mod-p (buffer-modified-p)) | |
| 3128 (buffer-read-only nil)) | |
| 3129 (while (search-forward "\r" nil t) | |
| 3130 (delete-char -1) | |
| 3131 (insert "\n")) | |
| 3132 (set-buffer-modified-p mod-p) | |
| 3133 )))) | |
| 3134 (setq selective-display nil)) | |
| 3135 | |
| 3136 (add-hook 'change-major-mode-hook 'nuke-selective-display) | |
| 3137 | |
| 1333 | 3138 (defvar overwrite-mode-textual " Ovwrt" |
| 428 | 3139 "The string displayed in the mode line when in overwrite mode.") |
| 1333 | 3140 (defvar overwrite-mode-binary " Bin Ovwrt" |
| 428 | 3141 "The string displayed in the mode line when in binary overwrite mode.") |
| 3142 | |
| 3143 (defun overwrite-mode (arg) | |
| 3144 "Toggle overwrite mode. | |
| 1333 | 3145 With arg, turn overwrite mode on iff arg is positive. |
| 428 | 3146 In overwrite mode, printing characters typed in replace existing text |
| 3147 on a one-for-one basis, rather than pushing it to the right. At the | |
| 3148 end of a line, such characters extend the line. Before a tab, | |
| 3149 such characters insert until the tab is filled in. | |
| 3150 \\[quoted-insert] still inserts characters in overwrite mode; this | |
| 3151 is supposed to make it easier to insert characters when necessary." | |
| 3152 (interactive "P") | |
| 3153 (setq overwrite-mode | |
| 3154 (if (if (null arg) (not overwrite-mode) | |
| 3155 (> (prefix-numeric-value arg) 0)) | |
| 3156 'overwrite-mode-textual)) | |
| 3157 (redraw-modeline)) | |
| 3158 | |
| 3159 (defun binary-overwrite-mode (arg) | |
| 3160 "Toggle binary overwrite mode. | |
| 1333 | 3161 With arg, turn binary overwrite mode on iff arg is positive. |
| 428 | 3162 In binary overwrite mode, printing characters typed in replace |
| 3163 existing text. Newlines are not treated specially, so typing at the | |
| 3164 end of a line joins the line to the next, with the typed character | |
| 3165 between them. Typing before a tab character simply replaces the tab | |
| 3166 with the character typed. | |
| 3167 \\[quoted-insert] replaces the text at the cursor, just as ordinary | |
| 3168 typing characters do. | |
| 3169 | |
| 3170 Note that binary overwrite mode is not its own minor mode; it is a | |
| 3171 specialization of overwrite-mode, entered by setting the | |
| 3172 `overwrite-mode' variable to `overwrite-mode-binary'." | |
| 3173 (interactive "P") | |
| 3174 (setq overwrite-mode | |
| 3175 (if (if (null arg) | |
| 3176 (not (eq overwrite-mode 'overwrite-mode-binary)) | |
| 3177 (> (prefix-numeric-value arg) 0)) | |
| 3178 'overwrite-mode-binary)) | |
| 3179 (redraw-modeline)) | |
| 1333 | 3180 |
| 3181 ;; END SYNCHED WITH FSF 21.2. | |
| 3182 | |
| 428 | 3183 |
| 771 | 3184 (defcustom line-number-mode t |
| 428 | 3185 "*Non-nil means display line number in modeline." |
| 3186 :type 'boolean | |
| 3187 :group 'editing-basics) | |
| 3188 | |
| 3189 (defun line-number-mode (arg) | |
| 3190 "Toggle Line Number mode. | |
| 444 | 3191 With arg, enable Line Number mode if arg is positive, else disable. |
| 428 | 3192 When Line Number mode is enabled, the line number appears |
| 3193 in the mode line." | |
| 3194 (interactive "P") | |
| 3195 (setq line-number-mode | |
| 3196 (if (null arg) (not line-number-mode) | |
| 3197 (> (prefix-numeric-value arg) 0))) | |
| 3198 (redraw-modeline)) | |
| 3199 | |
| 771 | 3200 (defcustom column-number-mode t |
| 428 | 3201 "*Non-nil means display column number in mode line." |
| 3202 :type 'boolean | |
| 3203 :group 'editing-basics) | |
| 3204 | |
| 3205 (defun column-number-mode (arg) | |
| 3206 "Toggle Column Number mode. | |
| 444 | 3207 With arg, enable Column Number mode if arg is positive, else disable. |
| 428 | 3208 When Column Number mode is enabled, the column number appears |
| 3209 in the mode line." | |
| 3210 (interactive "P") | |
| 3211 (setq column-number-mode | |
| 3212 (if (null arg) (not column-number-mode) | |
| 3213 (> (prefix-numeric-value arg) 0))) | |
| 3214 (redraw-modeline)) | |
| 3215 | |
| 3216 | |
| 3217 (defcustom blink-matching-paren t | |
| 3218 "*Non-nil means show matching open-paren when close-paren is inserted." | |
| 3219 :type 'boolean | |
| 3220 :group 'paren-blinking) | |
| 3221 | |
| 3222 (defcustom blink-matching-paren-on-screen t | |
| 3223 "*Non-nil means show matching open-paren when it is on screen. | |
| 3224 nil means don't show it (but the open-paren can still be shown | |
| 3225 when it is off screen." | |
| 3226 :type 'boolean | |
| 3227 :group 'paren-blinking) | |
| 3228 | |
| 3229 (defcustom blink-matching-paren-distance 12000 | |
| 3230 "*If non-nil, is maximum distance to search for matching open-paren." | |
| 3231 :type '(choice integer (const nil)) | |
| 3232 :group 'paren-blinking) | |
| 3233 | |
| 3234 (defcustom blink-matching-delay 1 | |
| 3235 "*The number of seconds that `blink-matching-open' will delay at a match." | |
| 3236 :type 'number | |
| 3237 :group 'paren-blinking) | |
| 3238 | |
| 3239 (defcustom blink-matching-paren-dont-ignore-comments nil | |
| 3240 "*Non-nil means `blink-matching-paren' should not ignore comments." | |
| 3241 :type 'boolean | |
| 3242 :group 'paren-blinking) | |
| 3243 | |
| 3244 (defun blink-matching-open () | |
| 3245 "Move cursor momentarily to the beginning of the sexp before point." | |
| 3246 (interactive "_") ; XEmacs | |
| 3247 (and (> (point) (1+ (point-min))) | |
| 3248 blink-matching-paren | |
| 3249 ;; Verify an even number of quoting characters precede the close. | |
| 3250 (= 1 (logand 1 (- (point) | |
| 3251 (save-excursion | |
| 446 | 3252 (backward-char 1) |
| 428 | 3253 (skip-syntax-backward "/\\") |
| 3254 (point))))) | |
| 3255 (let* ((oldpos (point)) | |
| 3256 (blinkpos) | |
| 3257 (mismatch)) | |
| 3258 (save-excursion | |
| 3259 (save-restriction | |
| 3260 (if blink-matching-paren-distance | |
| 3261 (narrow-to-region (max (point-min) | |
| 3262 (- (point) blink-matching-paren-distance)) | |
| 3263 oldpos)) | |
| 3264 (condition-case () | |
| 3265 (let ((parse-sexp-ignore-comments | |
| 3266 (and parse-sexp-ignore-comments | |
| 3267 (not blink-matching-paren-dont-ignore-comments)))) | |
| 3268 (setq blinkpos (scan-sexps oldpos -1))) | |
| 3269 (error nil))) | |
| 3270 (and blinkpos | |
| 3271 (/= (char-syntax (char-after blinkpos)) | |
| 3272 ?\$) | |
| 3273 (setq mismatch | |
| 3274 (or (null (matching-paren (char-after blinkpos))) | |
| 3275 (/= (char-after (1- oldpos)) | |
| 3276 (matching-paren (char-after blinkpos)))))) | |
| 3277 (if mismatch (setq blinkpos nil)) | |
| 3278 (if blinkpos | |
| 3279 (progn | |
| 3280 (goto-char blinkpos) | |
| 3281 (if (pos-visible-in-window-p) | |
| 3282 (and blink-matching-paren-on-screen | |
| 3283 (progn | |
| 3284 (auto-show-make-point-visible) | |
| 3285 (sit-for blink-matching-delay))) | |
| 3286 (goto-char blinkpos) | |
| 3287 (lmessage 'command "Matches %s" | |
| 3288 ;; Show what precedes the open in its line, if anything. | |
| 3289 (if (save-excursion | |
| 3290 (skip-chars-backward " \t") | |
| 3291 (not (bolp))) | |
| 3292 (buffer-substring (progn (beginning-of-line) (point)) | |
| 3293 (1+ blinkpos)) | |
| 3294 ;; Show what follows the open in its line, if anything. | |
| 3295 (if (save-excursion | |
| 3296 (forward-char 1) | |
| 3297 (skip-chars-forward " \t") | |
| 3298 (not (eolp))) | |
| 3299 (buffer-substring blinkpos | |
| 3300 (progn (end-of-line) (point))) | |
| 3301 ;; Otherwise show the previous nonblank line, | |
| 3302 ;; if there is one. | |
| 3303 (if (save-excursion | |
| 3304 (skip-chars-backward "\n \t") | |
| 3305 (not (bobp))) | |
| 3306 (concat | |
| 3307 (buffer-substring (progn | |
| 3308 (skip-chars-backward "\n \t") | |
| 3309 (beginning-of-line) | |
| 3310 (point)) | |
| 3311 (progn (end-of-line) | |
| 3312 (skip-chars-backward " \t") | |
| 3313 (point))) | |
| 3314 ;; Replace the newline and other whitespace with `...'. | |
| 3315 "..." | |
| 3316 (buffer-substring blinkpos (1+ blinkpos))) | |
| 3317 ;; There is nothing to show except the char itself. | |
| 3318 (buffer-substring blinkpos (1+ blinkpos)))))))) | |
| 3319 (cond (mismatch | |
| 3320 (display-message 'no-log "Mismatched parentheses")) | |
| 3321 ((not blink-matching-paren-distance) | |
| 3322 (display-message 'no-log "Unmatched parenthesis")))))))) | |
| 3323 | |
| 3324 ;Turned off because it makes dbx bomb out. | |
| 3325 (setq blink-paren-function 'blink-matching-open) | |
| 3326 | |
| 3327 | |
| 3328 ;; XEmacs: Some functions moved to cmdloop.el: | |
| 3329 ;; keyboard-quit | |
| 3330 ;; buffer-quit-function | |
| 3331 ;; keyboard-escape-quit | |
| 3332 | |
| 442 | 3333 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 3334 ;; mail composition code ;; | |
| 3335 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3336 | |
| 1333 | 3337 ;; BEGIN SYNCHED WITH FSF 21.2. |
| 3338 | |
| 2768 | 3339 (defcustom mail-user-agent 'xemacs-default-mail-user-agent |
| 428 | 3340 "*Your preference for a mail composition package. |
| 1333 | 3341 Various Emacs Lisp packages (e.g. Reporter) require you to compose an |
| 428 | 3342 outgoing email message. This variable lets you specify which |
| 3343 mail-sending package you prefer. | |
| 3344 | |
| 2768 | 3345 Valid values may include: |
| 3346 | |
| 3347 `vm-user-agent' -- use Kyle Jones' VM, as documented in the `(vm)' | |
| 3348 Info node. Compatible with `sendmail-user-agent' | |
| 3349 and can handle attachments and non-ASCII content, | |
| 3350 which the former can't. | |
| 3351 `sendmail-user-agent' -- use the default, bare-bones, Emacs Mail | |
| 3352 package. See Info node `(xemacs)Sending Mail'. | |
| 1333 | 3353 `mh-e-user-agent' -- use the Emacs interface to the MH mail system. |
| 3354 See Info node `(mh-e)'. | |
| 3355 `message-user-agent' -- use the Gnus Message package. | |
| 3356 See Info node `(message)'. | |
| 3357 `gnus-user-agent' -- like `message-user-agent', but with Gnus | |
| 3358 paraphernalia, particularly the Gcc: header for | |
| 3359 archiving. | |
| 428 | 3360 |
| 2768 | 3361 If you examine the value of this variable before setting it or composing a |
| 3362 mail, it will have another value, `xemacs-default-mail-user-agent'--this is to | |
| 3363 allow XEmacs to suggest that you use another email client instead of | |
| 3364 `sendmail-user-agent'. The latter, while part of the base XEmacs Lisp code, | |
| 3365 and very lightweight, doesn't support MIME, a considerable disadvantage | |
| 3366 today. | |
| 3367 | |
| 428 | 3368 Additional valid symbols may be available; check with the author of |
| 1333 | 3369 your package for details. The function should return non-nil if it |
| 3370 succeeds. | |
| 3371 | |
| 3372 See also `read-mail-command' concerning reading mail." | |
| 2768 | 3373 :type '(radio (function-item :tag "VM mail package" |
| 3374 :format "%t\n" | |
| 3375 vm-user-agent) | |
| 3376 (function-item :tag "Bare-bones Emacs mail" | |
| 428 | 3377 :format "%t\n" |
| 3378 sendmail-user-agent) | |
| 1333 | 3379 (function-item :tag "Emacs interface to MH" |
| 3380 :format "%t\n" | |
| 3381 mh-e-user-agent) | |
| 3382 (function-item :tag "Gnus Message package" | |
| 428 | 3383 :format "%t\n" |
| 3384 message-user-agent) | |
| 1333 | 3385 (function-item :tag "Gnus Message with full Gnus features" |
| 3386 :format "%t\n" | |
| 3387 gnus-user-agent) | |
| 428 | 3388 (function :tag "Other")) |
| 3389 :group 'mail) | |
| 3390 | |
| 3391 (defun define-mail-user-agent (symbol composefunc sendfunc | |
| 3392 &optional abortfunc hookvar) | |
| 3393 "Define a symbol to identify a mail-sending package for `mail-user-agent'. | |
| 3394 | |
| 3395 SYMBOL can be any Lisp symbol. Its function definition and/or | |
| 3396 value as a variable do not matter for this usage; we use only certain | |
| 3397 properties on its property list, to encode the rest of the arguments. | |
| 3398 | |
| 3399 COMPOSEFUNC is program callable function that composes an outgoing | |
| 3400 mail message buffer. This function should set up the basics of the | |
| 3401 buffer without requiring user interaction. It should populate the | |
| 3402 standard mail headers, leaving the `to:' and `subject:' headers blank | |
| 3403 by default. | |
| 3404 | |
| 3405 COMPOSEFUNC should accept several optional arguments--the same | |
| 3406 arguments that `compose-mail' takes. See that function's documentation. | |
| 3407 | |
| 3408 SENDFUNC is the command a user would run to send the message. | |
| 3409 | |
| 3410 Optional ABORTFUNC is the command a user would run to abort the | |
| 3411 message. For mail packages that don't have a separate abort function, | |
| 3412 this can be `kill-buffer' (the equivalent of omitting this argument). | |
| 3413 | |
| 3414 Optional HOOKVAR is a hook variable that gets run before the message | |
| 3415 is actually sent. Callers that use the `mail-user-agent' may | |
| 3416 install a hook function temporarily on this hook variable. | |
| 3417 If HOOKVAR is nil, `mail-send-hook' is used. | |
| 3418 | |
| 3419 The properties used on SYMBOL are `composefunc', `sendfunc', | |
| 3420 `abortfunc', and `hookvar'." | |
| 3421 (put symbol 'composefunc composefunc) | |
| 3422 (put symbol 'sendfunc sendfunc) | |
| 3423 (put symbol 'abortfunc (or abortfunc 'kill-buffer)) | |
| 3424 (put symbol 'hookvar (or hookvar 'mail-send-hook))) | |
| 3425 | |
| 2768 | 3426 (define-mail-user-agent 'vm-user-agent |
| 3427 'vm-compose-mail | |
| 3428 'vm-mail-send-and-exit) | |
| 3429 | |
| 428 | 3430 (define-mail-user-agent 'sendmail-user-agent |
| 3431 'sendmail-user-agent-compose 'mail-send-and-exit) | |
| 3432 | |
| 2768 | 3433 ;; Recent GNU sendmail.el does have MIME support, but it's buggy (as of |
| 3434 ;; 2005-05-01.) For example, if you FCC to a file more than once with | |
| 3435 ;; different coding systems, your non-ASCII data will get | |
| 3436 ;; trashed. quoted-printable encoding isn't done by default, attachments | |
| 3437 ;; just add a line: | |
| 3438 ;; | |
| 3439 ;; ===File /path/to/file/here================= | |
| 3440 ;; | |
| 3441 ;; the file's contents, | |
| 3442 ;; | |
| 3443 ;; =========================================== | |
| 3444 ;; | |
| 3445 ;; and hope for the best. Not code we want to use, IMO. | |
| 3446 | |
| 4293 | 3447 (defvar xemacs-default-composefunc-dont-nag nil |
| 3448 "Disable the `xemacs-default-composefunc' nagging; for bug reports.") | |
| 3449 | |
| 2768 | 3450 (defun xemacs-default-composefunc (&rest args) |
| 3451 "Warn that the default mail-reading package is heinously underfeatured; | |
| 3452 compose a mail using it, all the same. " | |
| 4293 | 3453 (unless (or noninteractive xemacs-default-composefunc-dont-nag) |
| 2977 | 3454 (warn " |
| 2768 | 3455 |
| 3456 Defaulting to the GNU Emacs-derived `sendmail.el' mail client. This facility, | |
| 3457 while part of base XEmacs, is heinously underfeatured, and not going to get | |
| 3458 better in the medium term. We include it so that bug reports work without | |
| 3459 packages; we suggest that you choose and/or install one of the other mail | |
| 3460 clients from packages if you're doing something other than M-x | |
| 3461 report-xemacs-bug , or even if you are reporting bugs regularly. | |
| 3462 | |
| 3463 To choose a package from those installed, click on \"Options\" -> | |
| 3464 \"Internet\" -> \"Compose Mail With ...\" and decide on one from the | |
| 3465 list. Gnus and VM are full-featured and have active user communities. | |
| 3466 | |
| 3467 To disable this warning and stick with the old behavior, you can explicitly | |
| 2977 | 3468 initialize `mail-user-agent' to 'sendmail-user-agent . ")) |
| 2768 | 3469 (setq mail-user-agent 'sendmail-user-agent) |
| 3470 (apply (get 'sendmail-user-agent 'composefunc) args)) | |
| 3471 | |
| 3472 (defun xemacs-default-sendfunc (&rest args) | |
| 3473 "Set `mail-user-agent' to `sendmail-user-agent'; call the send function | |
| 3474 associated with that package, passing it the supplied arguments. " | |
| 3475 (setq mail-user-agent 'sendmail-user-agent) | |
| 3476 (apply (get 'sendmail-user-agent 'sendfunc) args)) | |
| 3477 | |
| 3478 (define-mail-user-agent 'xemacs-default-mail-user-agent | |
| 3479 'xemacs-default-composefunc 'xemacs-default-sendfunc) | |
| 3480 | |
| 428 | 3481 (define-mail-user-agent 'message-user-agent |
| 3482 'message-mail 'message-send-and-exit | |
| 3483 'message-kill-buffer 'message-send-hook) | |
| 3484 | |
| 1333 | 3485 (defun rfc822-goto-eoh () |
| 3486 ;; Go to header delimiter line in a mail message, following RFC822 rules | |
| 3487 (goto-char (point-min)) | |
| 3488 (while (looking-at "^[^: \n]+:\\|^[ \t]") | |
| 3489 (forward-line 1)) | |
| 3490 (point)) | |
| 3491 | |
| 428 | 3492 (defun sendmail-user-agent-compose (&optional to subject other-headers continue |
| 3493 switch-function yank-action | |
| 3494 send-actions) | |
| 3495 (if switch-function | |
| 3496 (let ((special-display-buffer-names nil) | |
| 3497 (special-display-regexps nil) | |
| 3498 (same-window-buffer-names nil) | |
| 3499 (same-window-regexps nil)) | |
| 3500 (funcall switch-function "*mail*"))) | |
| 3501 (let ((cc (cdr (assoc-ignore-case "cc" other-headers))) | |
| 1333 | 3502 (in-reply-to (cdr (assoc-ignore-case "in-reply-to" other-headers))) |
| 3503 (body (cdr (assoc-ignore-case "body" other-headers)))) | |
| 776 | 3504 (or (declare-fboundp |
| 3505 (mail continue to subject in-reply-to cc yank-action send-actions)) | |
| 428 | 3506 continue |
| 3507 (error "Message aborted")) | |
| 3508 (save-excursion | |
| 1333 | 3509 (rfc822-goto-eoh) |
| 428 | 3510 (while other-headers |
| 1333 | 3511 (unless (member* (car (car other-headers)) |
| 3512 '("in-reply-to" "cc" "body") | |
| 3513 :test 'equalp) | |
| 428 | 3514 (insert (car (car other-headers)) ": " |
| 3515 (cdr (car other-headers)) "\n")) | |
| 3516 (setq other-headers (cdr other-headers))) | |
| 1333 | 3517 (when body |
| 3518 (forward-line 1) | |
| 3519 (insert body)) | |
| 428 | 3520 t))) |
| 3521 | |
| 3522 (define-mail-user-agent 'mh-e-user-agent | |
| 1333 | 3523 'mh-smail-batch 'mh-send-letter 'mh-fully-kill-draft |
| 428 | 3524 'mh-before-send-letter-hook) |
| 3525 | |
| 3526 (defun compose-mail (&optional to subject other-headers continue | |
| 3527 switch-function yank-action send-actions) | |
| 3528 "Start composing a mail message to send. | |
| 3529 This uses the user's chosen mail composition package | |
| 3530 as selected with the variable `mail-user-agent'. | |
| 3531 The optional arguments TO and SUBJECT specify recipients | |
| 3532 and the initial Subject field, respectively. | |
| 3533 | |
| 3534 OTHER-HEADERS is an alist specifying additional | |
| 3535 header fields. Elements look like (HEADER . VALUE) where both | |
| 3536 HEADER and VALUE are strings. | |
| 3537 | |
| 3538 CONTINUE, if non-nil, says to continue editing a message already | |
| 3539 being composed. | |
| 3540 | |
| 3541 SWITCH-FUNCTION, if non-nil, is a function to use to | |
| 3542 switch to and display the buffer used for mail composition. | |
| 3543 | |
| 3544 YANK-ACTION, if non-nil, is an action to perform, if and when necessary, | |
| 3545 to insert the raw text of the message being replied to. | |
| 3546 It has the form (FUNCTION . ARGS). The user agent will apply | |
| 3547 FUNCTION to ARGS, to insert the raw text of the original message. | |
| 3548 \(The user agent will also run `mail-citation-hook', *after* the | |
| 3549 original text has been inserted in this way.) | |
| 3550 | |
| 3551 SEND-ACTIONS is a list of actions to call when the message is sent. | |
| 3552 Each action has the form (FUNCTION . ARGS)." | |
| 3553 (interactive | |
| 3554 (list nil nil nil current-prefix-arg)) | |
| 3555 (let ((function (get mail-user-agent 'composefunc))) | |
| 3556 (funcall function to subject other-headers continue | |
| 3557 switch-function yank-action send-actions))) | |
| 3558 | |
| 3559 (defun compose-mail-other-window (&optional to subject other-headers continue | |
| 3560 yank-action send-actions) | |
| 3561 "Like \\[compose-mail], but edit the outgoing message in another window." | |
| 3562 (interactive | |
| 3563 (list nil nil nil current-prefix-arg)) | |
| 3564 (compose-mail to subject other-headers continue | |
| 3565 'switch-to-buffer-other-window yank-action send-actions)) | |
| 3566 | |
| 3567 | |
| 3568 (defun compose-mail-other-frame (&optional to subject other-headers continue | |
| 3569 yank-action send-actions) | |
| 3570 "Like \\[compose-mail], but edit the outgoing message in another frame." | |
| 3571 (interactive | |
| 3572 (list nil nil nil current-prefix-arg)) | |
| 3573 (compose-mail to subject other-headers continue | |
| 3574 'switch-to-buffer-other-frame yank-action send-actions)) | |
| 3575 | |
| 3576 | |
| 442 | 3577 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 3578 ;; set variable ;; | |
| 3579 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3580 | |
| 1333 | 3581 (defvar set-variable-value-history nil |
| 3582 "History of values entered with `set-variable'.") | |
| 3583 | |
| 428 | 3584 (defun set-variable (var val) |
| 3585 "Set VARIABLE to VALUE. VALUE is a Lisp object. | |
| 1333 | 3586 When using this interactively, enter a Lisp object for VALUE. |
| 428 | 3587 If you want VALUE to be a string, you must surround it with doublequotes. |
| 1333 | 3588 VALUE is used literally, not evaluated. |
| 3589 | |
| 428 | 3590 If VARIABLE is a specifier, VALUE is added to it as an instantiator in |
| 3591 the 'global locale with nil tag set (see `set-specifier'). | |
| 3592 | |
| 3593 If VARIABLE has a `variable-interactive' property, that is used as if | |
| 1333 | 3594 it were the arg to `interactive' (which see) to interactively read VALUE. |
| 3595 | |
| 3596 If VARIABLE has been defined with `defcustom', then the type information | |
| 3597 in the definition is used to check that VALUE is valid." | |
| 428 | 3598 (interactive |
| 1333 | 3599 (let* ((default-var (variable-at-point)) |
| 3600 (var (if (symbolp default-var) | |
| 3601 (read-variable (format "Set variable (default %s): " default-var) | |
| 3602 default-var) | |
| 3603 (read-variable "Set variable: "))) | |
| 3604 (minibuffer-help-form '(describe-variable var)) | |
| 3605 (prop (get var 'variable-interactive)) | |
| 3606 (prompt (format "Set %s to value: " var)) | |
| 3607 (val (if prop | |
| 3608 ;; Use VAR's `variable-interactive' property | |
| 3609 ;; as an interactive spec for prompting. | |
| 3610 (call-interactively `(lambda (arg) | |
| 3611 (interactive ,prop) | |
| 3612 arg)) | |
| 3613 (read | |
| 3614 (read-string prompt nil | |
| 3615 'set-variable-value-history))))) | |
| 3616 (list var val))) | |
| 3617 | |
| 3618 (let ((type (get var 'custom-type))) | |
| 3619 (when type | |
| 3620 ;; Match with custom type. | |
| 3621 (require 'cus-edit) | |
| 3622 (setq type (widget-convert type)) | |
| 3623 (unless (widget-apply type :match val) | |
| 3624 (error "Value `%S' does not match type %S of %S" | |
| 3625 val (car type) var)))) | |
| 428 | 3626 (if (and (boundp var) (specifierp (symbol-value var))) |
| 3627 (set-specifier (symbol-value var) val) | |
| 1333 | 3628 (set var val)) |
| 3629 | |
| 3630 ;; Force a thorough redisplay for the case that the variable | |
| 3631 ;; has an effect on the display, like `tab-width' has. | |
| 3632 (force-mode-line-update)) | |
| 3633 | |
| 3634 | |
| 3635 | |
| 3636 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3637 ;; forking a twin copy of a buffer ;; | |
| 3638 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3639 | |
| 3640 (defvar clone-buffer-hook nil | |
| 3641 "Normal hook to run in the new buffer at the end of `clone-buffer'.") | |
| 3642 | |
| 3643 (defun clone-process (process &optional newname) | |
| 3644 "Create a twin copy of PROCESS. | |
| 3645 If NEWNAME is nil, it defaults to PROCESS' name; | |
| 3646 NEWNAME is modified by adding or incrementing <N> at the end as necessary. | |
| 3647 If PROCESS is associated with a buffer, the new process will be associated | |
| 3648 with the current buffer instead. | |
| 3649 Returns nil if PROCESS has already terminated." | |
| 3650 (setq newname (or newname (process-name process))) | |
| 3651 (if (string-match "<[0-9]+>\\'" newname) | |
| 3652 (setq newname (substring newname 0 (match-beginning 0)))) | |
| 3653 (when (memq (process-status process) '(run stop open)) | |
| 3654 (let* ((process-connection-type (process-tty-name process)) | |
| 3655 (old-kwoq (process-kill-without-query process nil)) | |
| 3656 (new-process | |
| 3657 (if (memq (process-status process) '(open)) | |
| 3658 (apply 'open-network-stream newname | |
| 3659 (if (process-buffer process) (current-buffer)) | |
| 3660 ;; FSF: (process-contact process) | |
| 3661 (process-command process)) | |
| 3662 (apply 'start-process newname | |
| 3663 (if (process-buffer process) (current-buffer)) | |
| 3664 (process-command process))))) | |
| 3665 (process-kill-without-query new-process old-kwoq) | |
| 3666 (process-kill-without-query process old-kwoq) | |
| 3667 ;; FSF 21.2: | |
| 3668 ; (set-process-inherit-coding-system-flag | |
| 3669 ; new-process (process-inherit-coding-system-flag process)) | |
| 3670 (set-process-filter new-process (process-filter process)) | |
| 3671 (set-process-sentinel new-process (process-sentinel process)) | |
| 3672 new-process))) | |
| 3673 | |
| 3674 ;; things to maybe add (currently partly covered by `funcall mode': | |
| 3675 ;; - syntax-table | |
| 3676 ;; - overlays | |
| 3677 (defun clone-buffer (&optional newname display-flag) | |
| 3678 "Create a twin copy of the current buffer. | |
| 3679 If NEWNAME is nil, it defaults to the current buffer's name; | |
| 3680 NEWNAME is modified by adding or incrementing <N> at the end as necessary. | |
| 3681 | |
| 3682 If DISPLAY-FLAG is non-nil, the new buffer is shown with `pop-to-buffer'. | |
| 3683 This runs the normal hook `clone-buffer-hook' in the new buffer | |
| 3684 after it has been set up properly in other respects." | |
| 3685 (interactive (list (if current-prefix-arg (read-string "Name: ")) | |
| 3686 t)) | |
| 3687 (if buffer-file-name | |
| 3688 (error "Cannot clone a file-visiting buffer")) | |
| 3689 (if (get major-mode 'no-clone) | |
| 3690 (error "Cannot clone a buffer in %s mode" mode-name)) | |
| 3691 (setq newname (or newname (buffer-name))) | |
| 3692 (if (string-match "<[0-9]+>\\'" newname) | |
| 3693 (setq newname (substring newname 0 (match-beginning 0)))) | |
| 3694 (let ((buf (current-buffer)) | |
| 3695 (ptmin (point-min)) | |
| 3696 (ptmax (point-max)) | |
| 3697 (pt (point)) | |
| 3698 (mk (mark t)) ;(if mark-active (mark t))) | |
| 3699 (modified (buffer-modified-p)) | |
| 3700 (mode major-mode) | |
| 3701 (lvars (buffer-local-variables)) | |
| 3702 (process (get-buffer-process (current-buffer))) | |
| 3703 (new (generate-new-buffer (or newname (buffer-name))))) | |
| 3704 (save-restriction | |
| 3705 (widen) | |
| 3706 (with-current-buffer new | |
| 3707 (insert-buffer-substring buf))) | |
| 3708 (with-current-buffer new | |
| 3709 (narrow-to-region ptmin ptmax) | |
| 3710 (goto-char pt) | |
| 3711 (if mk (set-mark mk)) | |
| 3712 (set-buffer-modified-p modified) | |
| 3713 | |
| 3714 ;; Clone the old buffer's process, if any. | |
| 3715 (when process (clone-process process)) | |
| 3716 | |
| 3717 ;; Now set up the major mode. | |
| 3718 (funcall mode) | |
| 3719 | |
| 3720 ;; Set up other local variables. | |
|
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|
3721 (mapc (lambda (v) |
|
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|
3722 (condition-case () ;in case var is read-only |
|
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|
3723 (if (symbolp v) |
|
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|
3724 (makunbound v) |
|
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|
3725 (set (make-local-variable (car v)) (cdr v))) |
|
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|
3726 (error nil))) |
|
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|
3727 lvars) |
| 1333 | 3728 |
| 3729 ;; Run any hooks (typically set up by the major mode | |
| 3730 ;; for cloning to work properly). | |
| 3731 (run-hooks 'clone-buffer-hook)) | |
| 3732 (if display-flag (pop-to-buffer new)) | |
| 3733 new)) | |
| 3734 | |
| 3735 | |
| 3736 (defun clone-indirect-buffer (newname display-flag &optional norecord) | |
| 3737 "Create an indirect buffer that is a twin copy of the current buffer. | |
| 3738 | |
| 3739 Give the indirect buffer name NEWNAME. Interactively, read NEW-NAME | |
| 3740 from the minibuffer when invoked with a prefix arg. If NEWNAME is nil | |
| 3741 or if not called with a prefix arg, NEWNAME defaults to the current | |
| 3742 buffer's name. The name is modified by adding a `<N>' suffix to it | |
| 3743 or by incrementing the N in an existing suffix. | |
| 3744 | |
| 3745 DISPLAY-FLAG non-nil means show the new buffer with `pop-to-buffer'. | |
| 3746 This is always done when called interactively. | |
| 3747 | |
| 3748 Optional last arg NORECORD non-nil means do not put this buffer at the | |
| 3749 front of the list of recently selected ones." | |
| 3750 (interactive (list (if current-prefix-arg | |
| 3751 (read-string "BName of indirect buffer: ")) | |
| 3752 t)) | |
| 3753 (setq newname (or newname (buffer-name))) | |
| 3754 (if (string-match "<[0-9]+>\\'" newname) | |
| 3755 (setq newname (substring newname 0 (match-beginning 0)))) | |
| 3756 (let* ((name (generate-new-buffer-name newname)) | |
| 3757 (buffer (make-indirect-buffer (current-buffer) name t))) | |
| 3758 (when display-flag | |
| 3759 (pop-to-buffer buffer norecord)) | |
| 3760 buffer)) | |
| 3761 | |
| 3762 | |
| 3763 (defun clone-indirect-buffer-other-window (buffer &optional norecord) | |
| 3764 "Create an indirect buffer that is a twin copy of BUFFER. | |
| 3765 Select the new buffer in another window. | |
| 3766 Optional second arg NORECORD non-nil means do not put this buffer at | |
| 3767 the front of the list of recently selected ones." | |
| 3768 (interactive "bClone buffer in other window: ") | |
| 3769 (let ((pop-up-windows t)) | |
| 3770 (set-buffer buffer) | |
| 3771 (clone-indirect-buffer nil t norecord))) | |
| 3772 | |
| 3773 ;; END SYNCHED WITH FSF 21.2. | |
| 442 | 3774 |
| 428 | 3775 |
| 442 | 3776 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 3777 ;; case changing code ;; | |
| 3778 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 428 | 3779 |
| 3780 ;; A bunch of stuff was moved elsewhere: | |
| 3781 ;; completion-list-mode-map | |
| 3782 ;; completion-reference-buffer | |
| 3783 ;; completion-base-size | |
| 3784 ;; delete-completion-window | |
| 3785 ;; previous-completion | |
| 3786 ;; next-completion | |
| 3787 ;; choose-completion | |
| 3788 ;; choose-completion-delete-max-match | |
| 3789 ;; choose-completion-string | |
| 3790 ;; completion-list-mode | |
| 3791 ;; completion-fixup-function | |
| 3792 ;; completion-setup-function | |
| 3793 ;; switch-to-completions | |
| 3794 ;; event stuffs | |
| 3795 ;; keypad stuffs | |
| 3796 | |
| 3797 ;; The rest of this file is not in Lisp in FSF | |
| 3798 (defun capitalize-region-or-word (arg) | |
| 3799 "Capitalize the selected region or the following word (or ARG words)." | |
| 3800 (interactive "p") | |
| 3801 (if (region-active-p) | |
| 3802 (capitalize-region (region-beginning) (region-end)) | |
| 3803 (capitalize-word arg))) | |
| 3804 | |
| 3805 (defun upcase-region-or-word (arg) | |
| 3806 "Upcase the selected region or the following word (or ARG words)." | |
| 3807 (interactive "p") | |
| 3808 (if (region-active-p) | |
| 3809 (upcase-region (region-beginning) (region-end)) | |
| 3810 (upcase-word arg))) | |
| 3811 | |
| 3812 (defun downcase-region-or-word (arg) | |
| 3813 "Downcase the selected region or the following word (or ARG words)." | |
| 3814 (interactive "p") | |
| 3815 (if (region-active-p) | |
| 3816 (downcase-region (region-beginning) (region-end)) | |
| 3817 (downcase-word arg))) | |
| 3818 | |
| 442 | 3819 ;; #### not localized |
| 3820 (defvar uncapitalized-title-words | |
| 3821 '("the" "a" "an" "in" "of" "for" "to" "and" "but" "at" "on" "as" "by")) | |
| 3822 | |
| 3823 (defvar uncapitalized-title-word-regexp | |
| 3824 (concat "[ \t]*\\(" (mapconcat #'identity uncapitalized-title-words "\\|") | |
| 3825 "\\)\\>")) | |
| 3826 | |
| 3827 (defun capitalize-string-as-title (string) | |
| 3828 "Capitalize the words in the string, except for small words (as in titles). | |
| 3829 The words not capitalized are specified in `uncapitalized-title-words'." | |
|
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|
3830 (with-string-as-buffer-contents string |
|
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4869
diff
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|
3831 (capitalize-region-as-title (point-min) (point-max)))) |
| 442 | 3832 |
| 3833 (defun capitalize-region-as-title (b e &optional buffer) | |
| 3834 "Capitalize the words in the region, except for small words (as in titles). | |
| 3835 The words not capitalized are specified in `uncapitalized-title-words'." | |
| 3836 (interactive "r") | |
| 3837 (save-excursion | |
| 3838 (and buffer | |
| 3839 (set-buffer buffer)) | |
| 3840 (save-restriction | |
| 3841 (narrow-to-region b e) | |
| 3842 (goto-char (point-min)) | |
| 3843 (let ((first t)) | |
| 3844 (while (< (point) (point-max)) | |
| 3845 (if (or first | |
| 3846 (not (looking-at uncapitalized-title-word-regexp))) | |
| 3847 (capitalize-word 1) | |
| 3848 (forward-word 1)) | |
| 3849 (setq first nil)))))) | |
| 3850 | |
| 3851 | |
| 3852 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3853 ;; zmacs active region code ;; | |
| 3854 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3855 | |
| 428 | 3856 ;; Most of the zmacs code is now in elisp. The only thing left in C |
| 3857 ;; are the variables zmacs-regions, zmacs-region-active-p and | |
| 3858 ;; zmacs-region-stays plus the function zmacs_update_region which | |
| 3859 ;; simply calls the lisp level zmacs-update-region. It must remain | |
| 3860 ;; for convenience, since it is called by core C code. | |
| 3861 | |
| 442 | 3862 ;; XEmacs |
| 3863 (defun activate-region () | |
| 3864 "Activate the region, if `zmacs-regions' is true. | |
| 3865 Setting `zmacs-regions' to true causes LISPM-style active regions to be used. | |
| 3866 This function has no effect if `zmacs-regions' is false." | |
| 3867 (interactive) | |
| 3868 (and zmacs-regions (zmacs-activate-region))) | |
| 3869 | |
| 3870 ;; XEmacs | |
| 3871 (defsubst region-exists-p () | |
| 3872 "Return t if the region exists. | |
| 3873 If active regions are in use (i.e. `zmacs-regions' is true), this means that | |
| 3874 the region is active. Otherwise, this means that the user has pushed | |
| 3875 a mark in this buffer at some point in the past. | |
| 3876 The functions `region-beginning' and `region-end' can be used to find the | |
| 502 | 3877 limits of the region. |
| 3878 | |
| 3879 You should use this, *NOT* `region-active-p', in a menu item | |
| 3880 specification that you want grayed out when the region is not active: | |
| 3881 | |
| 3882 [ ... ... :active (region-exists-p)] | |
| 3883 | |
| 3884 This correctly caters to the user's setting of `zmacs-regions'." | |
| 442 | 3885 (not (null (mark)))) |
| 3886 | |
| 3887 ;; XEmacs | |
| 3888 (defun region-active-p () | |
| 2611 | 3889 "Return non-nil if the region is active in the current buffer. |
| 442 | 3890 If `zmacs-regions' is true, this is equivalent to `region-exists-p'. |
| 502 | 3891 Otherwise, this function always returns false. |
| 3892 | |
| 3893 You should generally *NOT* use this in a menu item specification that you | |
| 3894 want grayed out when the region is not active. Instead, use this: | |
| 3895 | |
| 3896 [ ... ... :active (region-exists-p)] | |
| 3897 | |
| 3898 Which correctly caters to the user's setting of `zmacs-regions'." | |
| 2611 | 3899 (and zmacs-regions zmacs-region-extent |
| 3900 (eq (current-buffer) (zmacs-region-buffer)))) | |
| 442 | 3901 |
| 428 | 3902 (defvar zmacs-activate-region-hook nil |
| 3903 "Function or functions called when the region becomes active; | |
| 3904 see the variable `zmacs-regions'.") | |
| 3905 | |
| 3906 (defvar zmacs-deactivate-region-hook nil | |
| 3907 "Function or functions called when the region becomes inactive; | |
| 3908 see the variable `zmacs-regions'.") | |
| 3909 | |
| 3910 (defvar zmacs-update-region-hook nil | |
| 3911 "Function or functions called when the active region changes. | |
| 3912 This is called after each command that sets `zmacs-region-stays' to t. | |
| 3913 See the variable `zmacs-regions'.") | |
| 3914 | |
| 487 | 3915 (add-hook 'zmacs-deactivate-region-hook 'disown-selection) |
| 3916 (add-hook 'zmacs-activate-region-hook 'activate-region-as-selection) | |
| 3917 (add-hook 'zmacs-update-region-hook 'activate-region-as-selection) | |
| 3918 | |
| 428 | 3919 (defvar zmacs-region-extent nil |
| 3920 "The extent of the zmacs region; don't use this.") | |
| 3921 | |
| 3922 (defvar zmacs-region-rectangular-p nil | |
| 3923 "Whether the zmacs region is a rectangle; don't use this.") | |
| 3924 | |
| 3925 (defun zmacs-make-extent-for-region (region) | |
| 3926 ;; Given a region, this makes an extent in the buffer which holds that | |
| 3927 ;; region, for highlighting purposes. If the region isn't associated | |
| 3928 ;; with a buffer, this does nothing. | |
| 3929 (let ((buffer nil) | |
| 3930 (valid (and (extentp zmacs-region-extent) | |
| 3931 (extent-object zmacs-region-extent) | |
| 3932 (buffer-live-p (extent-object zmacs-region-extent)))) | |
| 3933 start end) | |
| 3934 (cond ((consp region) | |
| 3935 (setq start (min (car region) (cdr region)) | |
| 3936 end (max (car region) (cdr region)) | |
| 3937 valid (and valid | |
| 3938 (eq (marker-buffer (car region)) | |
| 3939 (extent-object zmacs-region-extent))) | |
| 3940 buffer (marker-buffer (car region)))) | |
| 3941 (t | |
| 3942 (signal 'error (list "Invalid region" region)))) | |
| 3943 | |
| 3944 (if valid | |
| 3945 nil | |
| 3946 ;; The condition case is in case any of the extents are dead or | |
| 3947 ;; otherwise incapacitated. | |
| 3948 (condition-case () | |
| 3949 (if (listp zmacs-region-extent) | |
| 3950 (mapc 'delete-extent zmacs-region-extent) | |
| 3951 (delete-extent zmacs-region-extent)) | |
| 3952 (error nil))) | |
| 3953 | |
| 3954 (if valid | |
| 3955 (set-extent-endpoints zmacs-region-extent start end) | |
| 3956 (setq zmacs-region-extent (make-extent start end buffer)) | |
| 3957 | |
| 3958 ;; Make the extent be closed on the right, which means that if | |
| 3959 ;; characters are inserted exactly at the end of the extent, the | |
| 3960 ;; extent will grow to cover them. This is important for shell | |
| 3961 ;; buffers - suppose one makes a region, and one end is at point-max. | |
| 3962 ;; If the shell produces output, that marker will remain at point-max | |
| 3963 ;; (its position will increase). So it's important that the extent | |
| 3964 ;; exhibit the same behavior, lest the region covered by the extent | |
| 3965 ;; (the visual indication), and the region between point and mark | |
| 3966 ;; (the actual region value) become different! | |
| 3967 (set-extent-property zmacs-region-extent 'end-open nil) | |
| 3968 | |
| 3969 ;; use same priority as mouse-highlighting so that conflicts between | |
| 3970 ;; the region extent and a mouse-highlighted extent are resolved by | |
| 3971 ;; the usual size-and-endpoint-comparison method. | |
| 3972 (set-extent-priority zmacs-region-extent mouse-highlight-priority) | |
| 3973 (set-extent-face zmacs-region-extent 'zmacs-region) | |
| 3974 | |
| 3975 ;; #### It might be better to actually break | |
| 3976 ;; default-mouse-track-next-move-rect out of mouse.el so that we | |
| 3977 ;; can use its logic here. | |
| 3978 (cond | |
| 3979 (zmacs-region-rectangular-p | |
| 3980 (setq zmacs-region-extent (list zmacs-region-extent)) | |
|
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|
3981 (when-fboundp 'default-mouse-track-next-move-rect |
| 4222 | 3982 (default-mouse-track-next-move-rect start end zmacs-region-extent)) |
| 428 | 3983 )) |
| 3984 | |
| 3985 zmacs-region-extent))) | |
| 3986 | |
| 3987 (defun zmacs-region-buffer () | |
| 3988 "Return the buffer containing the zmacs region, or nil." | |
| 3989 ;; #### this is horrible and kludgy! This stuff needs to be rethought. | |
| 3990 (and zmacs-regions zmacs-region-active-p | |
| 3991 (or (marker-buffer (mark-marker t)) | |
| 3992 (and (extent-live-p zmacs-region-extent) | |
| 3993 (buffer-live-p (extent-object zmacs-region-extent)) | |
| 3994 (extent-object zmacs-region-extent))))) | |
| 3995 | |
| 3996 (defun zmacs-activate-region () | |
| 3997 "Make the region between `point' and `mark' be active (highlighted), | |
| 3998 if `zmacs-regions' is true. Only a very small number of commands | |
| 3999 should ever do this. Calling this function will call the hook | |
| 4000 `zmacs-activate-region-hook', if the region was previously inactive. | |
| 4001 Calling this function ensures that the region stays active after the | |
| 4002 current command terminates, even if `zmacs-region-stays' is not set. | |
| 4003 Returns t if the region was activated (i.e. if `zmacs-regions' if t)." | |
| 4004 (if (not zmacs-regions) | |
| 4005 nil | |
| 4006 (setq zmacs-region-active-p t | |
| 4007 zmacs-region-stays t | |
| 4222 | 4008 zmacs-region-rectangular-p (and-boundp 'mouse-track-rectangle-p |
| 4009 mouse-track-rectangle-p)) | |
| 428 | 4010 (if (marker-buffer (mark-marker t)) |
| 4011 (zmacs-make-extent-for-region (cons (point-marker t) (mark-marker t)))) | |
| 4012 (run-hooks 'zmacs-activate-region-hook) | |
| 4013 t)) | |
| 4014 | |
| 4015 (defun zmacs-deactivate-region () | |
| 4016 "Make the region between `point' and `mark' no longer be active, | |
| 4017 if `zmacs-regions' is true. You shouldn't need to call this; the | |
| 4018 command loop calls it when appropriate. Calling this function will | |
| 4019 call the hook `zmacs-deactivate-region-hook', if the region was | |
| 4020 previously active. Returns t if the region had been active, nil | |
| 4021 otherwise." | |
| 4022 (if (not zmacs-region-active-p) | |
| 4023 nil | |
| 4024 (setq zmacs-region-active-p nil | |
| 4025 zmacs-region-stays nil | |
| 4026 zmacs-region-rectangular-p nil) | |
| 4027 (if zmacs-region-extent | |
| 4028 (let ((inhibit-quit t)) | |
| 4029 (if (listp zmacs-region-extent) | |
| 4030 (mapc 'delete-extent zmacs-region-extent) | |
| 4031 (delete-extent zmacs-region-extent)) | |
| 4032 (setq zmacs-region-extent nil))) | |
| 4033 (run-hooks 'zmacs-deactivate-region-hook) | |
| 4034 t)) | |
| 4035 | |
| 4036 (defun zmacs-update-region () | |
| 4037 "Update the highlighted region between `point' and `mark'. | |
| 4038 You shouldn't need to call this; the command loop calls it | |
| 4039 when appropriate. Calling this function will call the hook | |
| 4040 `zmacs-update-region-hook', if the region is active." | |
| 4041 (when zmacs-region-active-p | |
| 4042 (when (marker-buffer (mark-marker t)) | |
| 4043 (zmacs-make-extent-for-region (cons (point-marker t) | |
| 4044 (mark-marker t)))) | |
| 4045 (run-hooks 'zmacs-update-region-hook))) | |
| 4046 | |
| 442 | 4047 |
| 4048 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 4049 ;; message logging code ;; | |
| 4050 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 428 | 4051 |
| 4052 ;;; #### Should this be moved to a separate file, for clarity? | |
| 4053 ;;; -hniksic | |
| 4054 | |
| 4055 ;;; The `message-stack' is an alist of labels with messages; the first | |
| 4056 ;;; message in this list is always in the echo area. A call to | |
| 4057 ;;; `display-message' inserts a label/message pair at the head of the | |
| 4058 ;;; list, and removes any other pairs with that label. Calling | |
| 4059 ;;; `clear-message' causes any pair with matching label to be removed, | |
| 4060 ;;; and this may cause the displayed message to change or vanish. If | |
| 4061 ;;; the label arg is nil, the entire message stack is cleared. | |
| 4062 ;;; | |
| 4063 ;;; Message/error filtering will be a little tricker to implement than | |
| 4064 ;;; logging, since messages can be built up incrementally | |
| 4065 ;;; using clear-message followed by repeated calls to append-message | |
| 4066 ;;; (this happens with error messages). For messages which aren't | |
| 4067 ;;; created this way, filtering could be implemented at display-message | |
| 4068 ;;; very easily. | |
| 4069 ;;; | |
| 4070 ;;; Bits of the logging code are borrowed from log-messages.el by | |
| 4071 ;;; Robert Potter (rpotter@grip.cis.upenn.edu). | |
| 4072 | |
| 4073 ;; need this to terminate the currently-displayed message | |
| 4074 ;; ("Loading simple ...") | |
| 4075 (when (and | |
| 4076 (not (fboundp 'display-message)) | |
| 4077 (not (featurep 'debug))) | |
| 1346 | 4078 (set-device-clear-left-side nil nil) |
| 428 | 4079 (send-string-to-terminal "\n")) |
| 4080 | |
| 4081 (defvar message-stack nil | |
| 4082 "An alist of label/string pairs representing active echo-area messages. | |
| 4083 The first element in the list is currently displayed in the echo area. | |
| 4084 Do not modify this directly--use the `message' or | |
| 4085 `display-message'/`clear-message' functions.") | |
| 4086 | |
| 4087 (defvar remove-message-hook 'log-message | |
| 4088 "A function or list of functions to be called when a message is removed | |
| 4089 from the echo area at the bottom of the frame. The label of the removed | |
| 4090 message is passed as the first argument, and the text of the message | |
| 4091 as the second argument.") | |
| 4092 | |
| 4093 (defcustom log-message-max-size 50000 | |
| 4094 "Maximum size of the \" *Message-Log*\" buffer. See `log-message'." | |
| 4095 :type 'integer | |
| 4096 :group 'log-message) | |
| 4097 (make-compatible-variable 'message-log-max 'log-message-max-size) | |
| 4098 | |
| 4099 ;; We used to reject quite a lot of stuff here, but it was a bad idea, | |
| 4100 ;; for two reasons: | |
| 4101 ;; | |
| 4102 ;; a) In most circumstances, you *want* to see the message in the log. | |
| 4103 ;; The explicitly non-loggable messages should be marked as such by | |
| 4104 ;; the issuer. Gratuitous non-displaying of random regexps made | |
| 4105 ;; debugging harder, too (because various reasonable debugging | |
| 4106 ;; messages would get eaten). | |
| 4107 ;; | |
| 4108 ;; b) It slowed things down. Yes, visibly. | |
| 4109 ;; | |
| 4110 ;; So, I left only a few of the really useless ones on this kill-list. | |
| 4111 ;; | |
| 4112 ;; --hniksic | |
| 4113 (defcustom log-message-ignore-regexps | |
| 4114 '(;; Note: adding entries to this list slows down messaging | |
| 440 | 4115 ;; significantly. Wherever possible, use message labels. |
| 428 | 4116 |
| 4117 ;; Often-seen messages | |
| 4118 "\\`\\'" ; empty message | |
| 4119 "\\`\\(Beginning\\|End\\) of buffer\\'" | |
| 4120 ;;"^Quit$" | |
| 4121 ;; completions | |
| 4122 ;; Many packages print this -- impossible to categorize | |
| 4123 ;;"^Making completion list" | |
| 4124 ;; Gnus | |
| 4125 ;; "^No news is no news$" | |
| 4126 ;; "^No more\\( unread\\)? newsgroups$" | |
| 4127 ;; "^Opening [^ ]+ server\\.\\.\\." | |
| 4128 ;; "^[^:]+: Reading incoming mail" | |
| 4129 ;; "^Getting mail from " | |
| 4130 ;; "^\\(Generating Summary\\|Sorting threads\\|Making sparse threads\\|Scoring\\|Checking new news\\|Expiring articles\\|Sending\\)\\.\\.\\." | |
| 4131 ;; "^\\(Fetching headers for\\|Retrieving newsgroup\\|Reading active file\\)" | |
| 4132 ;; "^No more\\( unread\\)? articles" | |
| 4133 ;; "^Deleting article " | |
| 4134 ;; W3 | |
| 4135 ;; "^Parsed [0-9]+ of [0-9]+ ([0-9]+%)" | |
| 4136 ) | |
| 4137 "List of regular expressions matching messages which shouldn't be logged. | |
| 4138 See `log-message'. | |
| 4139 | |
| 3929 | 4140 Adding entries to this list slows down messaging significantly. Wherever |
| 4141 possible, messages which might need to be ignored should be labeled with | |
| 4142 'progress, 'prompt, or 'no-log, so they can be filtered by | |
| 4143 log-message-ignore-labels." | |
| 428 | 4144 :type '(repeat regexp) |
| 4145 :group 'log-message) | |
| 4146 | |
| 4147 (defcustom log-message-ignore-labels | |
| 4148 '(help-echo command progress prompt no-log garbage-collecting auto-saving) | |
| 4149 "List of symbols indicating labels of messages which shouldn't be logged. | |
| 4150 See `display-message' for some common labels. See also `log-message'." | |
| 4151 :type '(repeat (symbol :tag "Label")) | |
| 4152 :group 'log-message) | |
| 4153 | |
| 1703 | 4154 (defcustom redisplay-echo-area-function 'redisplay-echo-area |
| 4155 "The function to call to display echo area buffer." | |
| 4156 :type 'function | |
| 4157 :group 'log-message) | |
| 4158 | |
| 4159 (defcustom undisplay-echo-area-function nil | |
| 3929 | 4160 "The function to call to undisplay echo area buffer. |
| 4161 WARNING: any problem with your function is likely to result in an | |
| 4162 uninterruptible infinite loop. Use of custom functions is therefore not | |
| 4163 recommended." | |
| 4164 :type '(choice (const nil) | |
| 4165 function) | |
| 4166 :group 'log-message) | |
| 4167 | |
| 4168 (defvar undisplay-echo-area-resize-window-allowed t | |
| 4169 "INTERNAL USE ONLY. | |
| 4170 Guards against `undisplay-echo-area-resize-window' infloops. | |
| 4171 Touch this at your own risk.") | |
| 4172 | |
| 4173 (defun undisplay-echo-area-resize-window () | |
| 4174 "Resize idle echo area window to `resize-minibuffer-idle-height'. | |
| 4175 If either `resize-minibuffer-idle-height' or `resize-minibuffer-mode' is nil, | |
| 4176 does nothing. If `resize-minibuffer-window-exactly' is non-nil, always resize | |
| 4177 to this height exactly, otherwise if current height is no larger than this, | |
| 4178 leave it as is." | |
| 4179 (when (default-value undisplay-echo-area-resize-window-allowed) | |
| 4180 (setq-default undisplay-echo-area-resize-window-allowed nil) | |
| 4181 (let* ((mbw (minibuffer-window)) | |
| 4182 (height (window-height mbw))) | |
| 4183 (with-boundp '(resize-minibuffer-idle-height) | |
| 4184 (and resize-minibuffer-mode | |
| 4185 (numberp resize-minibuffer-idle-height) | |
| 4186 (> resize-minibuffer-idle-height 0) | |
| 4187 (unless (if resize-minibuffer-window-exactly | |
| 4188 (= resize-minibuffer-idle-height height) | |
| 4189 (<= resize-minibuffer-idle-height height)) | |
| 4190 (enlarge-window (- resize-minibuffer-idle-height height) | |
| 4191 nil mbw)))) | |
| 4192 (setq-default undisplay-echo-area-resize-window-allowed t)))) | |
| 1703 | 4193 |
| 428 | 4194 ;;Subsumed by view-lossage |
| 4195 ;; Not really, I'm adding it back by popular demand. -slb | |
| 4196 (defun show-message-log () | |
| 4197 "Show the \" *Message-Log*\" buffer, which contains old messages and errors." | |
| 4198 (interactive) | |
| 793 | 4199 (view-lossage t)) |
| 428 | 4200 |
| 4201 (defvar log-message-filter-function 'log-message-filter | |
| 4202 "Value must be a function of two arguments: a symbol (label) and | |
| 4203 a string (message). It should return non-nil to indicate a message | |
| 4204 should be logged. Possible values include 'log-message-filter and | |
| 4205 'log-message-filter-errors-only.") | |
| 4206 | |
| 4207 (defun log-message-filter (label message) | |
| 4208 "Default value of `log-message-filter-function'. | |
| 4209 Messages whose text matches one of the `log-message-ignore-regexps' | |
| 4210 or whose label appears in `log-message-ignore-labels' are not saved." | |
| 4211 (let ((r log-message-ignore-regexps) | |
| 4212 (ok (not (memq label log-message-ignore-labels)))) | |
| 4213 (save-match-data | |
| 4214 (while (and r ok) | |
| 4215 (when (string-match (car r) message) | |
| 4216 (setq ok nil)) | |
| 4217 (setq r (cdr r)))) | |
| 4218 ok)) | |
| 4219 | |
| 4220 (defun log-message-filter-errors-only (label message) | |
| 4221 "For use as the `log-message-filter-function'. Only logs error messages." | |
| 4222 (eq label 'error)) | |
| 4223 | |
| 4224 (defun log-message (label message) | |
| 4225 "Stuff a copy of the message into the \" *Message-Log*\" buffer, | |
| 4226 if it satisfies the `log-message-filter-function'. | |
| 4227 | |
| 4228 For use on `remove-message-hook'." | |
| 4229 (when (and (not noninteractive) | |
| 4230 (funcall log-message-filter-function label message)) | |
| 4231 ;; Use save-excursion rather than save-current-buffer because we | |
| 4232 ;; change the value of point. | |
| 4233 (save-excursion | |
| 4234 (set-buffer (get-buffer-create " *Message-Log*")) | |
| 4235 (goto-char (point-max)) | |
| 4236 ;(insert (concat (upcase (symbol-name label)) ": " message "\n")) | |
| 4237 (let (extent) | |
| 4238 ;; Mark multiline message with an extent, which `view-lossage' | |
| 4239 ;; will recognize. | |
| 793 | 4240 (save-match-data |
| 4241 (when (string-match "\n" message) | |
| 4242 (setq extent (make-extent (point) (point))) | |
| 4243 (set-extent-properties extent '(end-open nil message-multiline t))) | |
| 4244 ) | |
| 428 | 4245 (insert message "\n") |
| 4246 (when extent | |
| 4247 (set-extent-property extent 'end-open t))) | |
| 4248 (when (> (point-max) (max log-message-max-size (point-min))) | |
| 4249 ;; Trim log to ~90% of max size. | |
| 4250 (goto-char (max (- (point-max) | |
| 4251 (truncate (* 0.9 log-message-max-size))) | |
| 4252 (point-min))) | |
| 4253 (forward-line 1) | |
| 4254 (delete-region (point-min) (point)))))) | |
| 4255 | |
| 4256 (defun message-displayed-p (&optional return-string frame) | |
| 4257 "Return a non-nil value if a message is presently displayed in the\n\ | |
| 4258 minibuffer's echo area. If optional argument RETURN-STRING is non-nil,\n\ | |
| 4259 return a string containing the message, otherwise just return t." | |
| 4260 ;; by definition, a message is displayed if the echo area buffer is | |
| 4261 ;; non-empty (see also echo_area_active()). It had better also | |
| 4262 ;; be the case that message-stack is nil exactly when the echo area | |
| 4263 ;; is non-empty. | |
| 4264 (let ((buffer (get-buffer " *Echo Area*"))) | |
| 4265 (and (< (point-min buffer) (point-max buffer)) | |
| 4266 (if return-string | |
| 4267 (buffer-substring nil nil buffer) | |
| 4268 t)))) | |
| 4269 | |
| 4270 ;;; Returns the string which remains in the echo area, or nil if none. | |
| 4271 ;;; If label is nil, the whole message stack is cleared. | |
| 4272 (defun clear-message (&optional label frame stdout-p no-restore) | |
| 4273 "Remove any message with the given LABEL from the message-stack, | |
| 4274 erasing it from the echo area if it's currently displayed there. | |
| 4275 If a message remains at the head of the message-stack and NO-RESTORE | |
| 4276 is nil, it will be displayed. The string which remains in the echo | |
| 4277 area will be returned, or nil if the message-stack is now empty. | |
| 4278 If LABEL is nil, the entire message-stack is cleared. | |
| 3929 | 4279 STDOUT-P is ignored, except for output to stream devices. For streams, |
| 4280 STDOUT-P non-nil directs output to stdout, otherwise to stderr. \(This is | |
| 4281 used only in case of restoring an earlier message from the stack.) | |
| 428 | 4282 |
| 4283 Unless you need the return value or you need to specify a label, | |
| 4284 you should just use (message nil)." | |
| 4285 (or frame (setq frame (selected-frame))) | |
| 4286 (let ((clear-stream (and message-stack (eq 'stream (frame-type frame))))) | |
| 4287 (remove-message label frame) | |
| 502 | 4288 (let ((inhibit-read-only t)) |
| 428 | 4289 (erase-buffer " *Echo Area*")) |
| 1703 | 4290 (if undisplay-echo-area-function |
| 4291 (funcall undisplay-echo-area-function)) | |
| 1346 | 4292 ;; If outputting to the terminal, make sure we clear the left side. |
| 4293 (when (or clear-stream | |
| 4294 (and (eq 'stream (frame-type frame)) | |
| 4295 (not (device-left-side-clear-p (frame-device frame))))) | |
| 4296 (set-device-clear-left-side (frame-device frame) nil) | |
| 4297 (send-string-to-terminal ?\n stdout-p)) | |
| 428 | 4298 (if no-restore |
| 4299 nil ; just preparing to put another msg up | |
| 4300 (if message-stack | |
| 4301 (let ((oldmsg (cdr (car message-stack)))) | |
| 4302 (raw-append-message oldmsg frame stdout-p) | |
| 4303 oldmsg) | |
| 4304 ;; #### Should we (redisplay-echo-area) here? Messes some | |
| 4305 ;; things up. | |
| 4306 nil)))) | |
| 4307 | |
| 4308 (defun remove-message (&optional label frame) | |
| 4309 ;; If label is nil, we want to remove all matching messages. | |
| 4310 ;; Must reverse the stack first to log them in the right order. | |
| 4311 (let ((log nil)) | |
| 4312 (while (and message-stack | |
| 4313 (or (null label) ; null label means clear whole stack | |
| 4314 (eq label (car (car message-stack))))) | |
| 4315 (push (car message-stack) log) | |
| 4316 (setq message-stack (cdr message-stack))) | |
| 4317 (let ((s message-stack)) | |
| 4318 (while (cdr s) | |
| 4319 (let ((msg (car (cdr s)))) | |
| 4320 (if (eq label (car msg)) | |
| 4321 (progn | |
| 4322 (push msg log) | |
| 4323 (setcdr s (cdr (cdr s)))) | |
| 4324 (setq s (cdr s)))))) | |
| 4325 ;; (possibly) log each removed message | |
| 4326 (while log | |
| 793 | 4327 (with-trapping-errors |
| 4328 :operation 'remove-message-hook | |
| 4329 :class 'message-log | |
| 4330 :error-form (progn | |
| 4331 (setq remove-message-hook nil) | |
| 4332 (let ((inhibit-read-only t)) | |
| 4333 (erase-buffer " *Echo Area*"))) | |
| 4334 :resignal t | |
| 4335 (run-hook-with-args 'remove-message-hook | |
| 4336 (car (car log)) (cdr (car log)))) | |
| 428 | 4337 (setq log (cdr log))))) |
| 4338 | |
| 4339 (defun append-message (label message &optional frame stdout-p) | |
| 3929 | 4340 "Add MESSAGE to the message-stack, or append it to the existing text. |
| 4341 LABEL is the class of the message. If it is the same as that of the top of | |
| 4342 the message stack, MESSAGE is appended to the existing message, otherwise | |
| 4343 it is pushed on the stack. | |
| 4344 FRAME determines the minibuffer window to send the message to. | |
| 4345 STDOUT-P is ignored, except for output to stream devices. For streams, | |
| 4346 STDOUT-P non-nil directs output to stdout, otherwise to stderr." | |
| 428 | 4347 (or frame (setq frame (selected-frame))) |
| 1346 | 4348 ;; If outputting to the terminal, make sure output from anyone else clears |
| 4349 ;; the left side first, but don't do it ourselves, otherwise we won't be | |
| 4350 ;; able to append to an existing message. | |
| 4351 (if (eq 'stream (frame-type frame)) | |
| 4352 (set-device-clear-left-side (frame-device frame) nil)) | |
| 428 | 4353 (let ((top (car message-stack))) |
| 4354 (if (eq label (car top)) | |
| 4355 (setcdr top (concat (cdr top) message)) | |
| 4356 (push (cons label message) message-stack))) | |
| 1346 | 4357 (raw-append-message message frame stdout-p) |
| 4358 (if (eq 'stream (frame-type frame)) | |
| 4359 (set-device-clear-left-side (frame-device frame) t))) | |
| 428 | 4360 |
| 3929 | 4361 ;; Really append the message to the echo area. No fiddling with |
| 428 | 4362 ;; message-stack. |
| 4363 (defun raw-append-message (message &optional frame stdout-p) | |
| 4364 (unless (equal message "") | |
| 502 | 4365 (let ((inhibit-read-only t)) |
| 3652 | 4366 (with-current-buffer " *Echo Area*" |
| 4367 (insert-string message) | |
| 3929 | 4368 ;; #### This needs to be conditional; cf discussion by Stefan Monnier |
| 4369 ;; et al on emacs-devel in mid-to-late April 2007. One problem is | |
| 4370 ;; there is no known good way to guess whether the user wants to have | |
| 4371 ;; the echo area height changed on him asynchronously, especially | |
| 4372 ;; after message display. | |
| 4373 ;; There is also a problem where Lisp backtraces get sent to the echo | |
| 4374 ;; area, thus maxing out the window height. Unfortunately, it doesn't | |
| 4375 ;; return to a reasonable size very quickly. | |
| 4376 ;; It is not clear that echo area and minibuffer behavior should be | |
| 4377 ;; linked as we do here. It's OK for now; at least this obeys the | |
| 4378 ;; minibuffer resizing conventions which seem a pretty good guess | |
| 4379 ;; at user preference. | |
| 4380 (when resize-minibuffer-mode | |
| 4381 ;; #### interesting idea, unbearable implementation | |
| 4382 ;; (fill-region (point-min) (point-max)) | |
| 4383 ;; | |
| 4384 ;; #### We'd like to be able to do something like | |
| 4385 ;; | |
| 4386 ;; (save-window-excursion | |
| 4387 ;; (select-window (minibuffer-window frame)) | |
| 4388 ;; (resize-minibuffer-window)))) | |
| 4389 ;; | |
| 4390 ;; but that can't work, because the echo area isn't a real window! | |
| 4391 ;; We should fix that, but this is an approximation, duplicating the | |
| 4392 ;; resize-minibuffer code. | |
| 4393 (let* ((mbw (minibuffer-window frame)) | |
| 4394 (height (window-height mbw)) | |
| 4395 (lines (ceiling (/ (- (point-max) (point-min)) | |
| 4396 (- (window-width mbw) 1.0))))) | |
| 4397 (and (numberp resize-minibuffer-window-max-height) | |
| 4398 (> resize-minibuffer-window-max-height 0) | |
| 4399 (setq lines (min lines | |
| 4400 resize-minibuffer-window-max-height))) | |
| 4401 (or (if resize-minibuffer-window-exactly | |
| 4402 (= lines height) | |
| 4403 (<= lines height)) | |
| 4404 (enlarge-window (- lines height) nil mbw))))) | |
| 428 | 4405 |
| 4406 ;; Don't redisplay the echo area if we are executing a macro. | |
| 4407 (if (not executing-kbd-macro) | |
| 3929 | 4408 ;; Conditionalizing on the device type in this way isn't clean, but |
| 4409 ;; neither is having a device method, as I originally implemented | |
| 4410 ;; it: all non-stream devices behave in the same way. Perhaps | |
| 4411 ;; the cleanest way is to make the concept of a "redisplayable" | |
| 4412 ;; device, which stream devices are not. Look into this more if | |
| 4413 ;; we ever create another non-redisplayable device type (e.g. | |
| 4414 ;; processes? printers?). | |
| 428 | 4415 (if (eq 'stream (frame-type frame)) |
| 4416 (send-string-to-terminal message stdout-p (frame-device frame)) | |
| 1703 | 4417 (funcall redisplay-echo-area-function)))))) |
| 428 | 4418 |
| 4419 (defun display-message (label message &optional frame stdout-p) | |
| 4420 "Print a one-line message at the bottom of the frame. First argument | |
| 4421 LABEL is an identifier for this message. MESSAGE is the string to display. | |
| 4422 Use `clear-message' to remove a labelled message. | |
| 3929 | 4423 STDOUT-P is ignored, except for output to stream devices. For streams, |
| 4424 STDOUT-P non-nil directs output to stdout, otherwise to stderr. | |
| 428 | 4425 |
| 4426 Here are some standard labels (those marked with `*' are not logged | |
| 4427 by default--see the `log-message-ignore-labels' variable): | |
| 4428 message default label used by the `message' function | |
| 4429 error default label used for reporting errors | |
| 4430 * progress progress indicators like \"Converting... 45%\" | |
| 4431 * prompt prompt-like messages like \"I-search: foo\" | |
| 4432 * command helper command messages like \"Mark set\" | |
| 4433 * no-log messages that should never be logged" | |
| 4434 (clear-message label frame stdout-p t) | |
| 4435 (append-message label message frame stdout-p)) | |
| 4436 | |
| 4437 (defun current-message (&optional frame) | |
| 4438 "Return the current message in the echo area, or nil. | |
| 4439 The FRAME argument is currently unused." | |
| 4440 (cdr (car message-stack))) | |
| 4441 | |
| 4442 ;;; may eventually be frame-dependent | |
| 4443 (defun current-message-label (&optional frame) | |
| 4444 (car (car message-stack))) | |
| 4445 | |
| 4446 (defun message (fmt &rest args) | |
| 4447 "Print a one-line message at the bottom of the frame. | |
| 4448 The arguments are the same as to `format'. | |
| 4449 | |
| 4450 If the only argument is nil, clear any existing message; let the | |
| 4451 minibuffer contents show." | |
| 4452 ;; questionable junk in the C code | |
| 4453 ;; (if (framep default-minibuffer-frame) | |
| 4454 ;; (make-frame-visible default-minibuffer-frame)) | |
| 4455 (if (and (null fmt) (null args)) | |
| 4456 (prog1 nil | |
| 4457 (clear-message nil)) | |
| 4458 (let ((str (apply 'format fmt args))) | |
| 4459 (display-message 'message str) | |
| 4460 str))) | |
| 4461 | |
| 4462 (defun lmessage (label fmt &rest args) | |
| 4463 "Print a one-line message at the bottom of the frame. | |
| 4464 First argument LABEL is an identifier for this message. The rest of the | |
| 4465 arguments are the same as to `format'. | |
| 4466 | |
| 4467 See `display-message' for a list of standard labels." | |
| 4468 (if (and (null fmt) (null args)) | |
| 4469 (prog1 nil | |
| 4470 (clear-message label nil)) | |
| 4471 (let ((str (apply 'format fmt args))) | |
| 4472 (display-message label str) | |
| 4473 str))) | |
| 4474 | |
| 442 | 4475 |
| 4476 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 4477 ;; warning code ;; | |
| 4478 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 428 | 4479 |
| 4480 (defcustom log-warning-minimum-level 'info | |
| 4481 "Minimum level of warnings that should be logged. | |
| 4482 The warnings in levels below this are completely ignored, as if they never | |
| 4483 happened. | |
| 4484 | |
| 4485 The recognized warning levels, in decreasing order of priority, are | |
| 793 | 4486 'emergency, 'critical, 'error, 'warning, 'alert, 'notice, 'info, and |
| 428 | 4487 'debug. |
| 4488 | |
| 4489 See also `display-warning-minimum-level'. | |
| 4490 | |
| 4491 You can also control which warnings are displayed on a class-by-class | |
| 4492 basis. See `display-warning-suppressed-classes' and | |
| 793 | 4493 `log-warning-suppressed-classes'. |
| 4494 | |
| 3064 | 4495 For a description of the meaning of the levels, see `display-warning'." |
| 793 | 4496 :type '(choice (const emergency) (const critical) |
| 4497 (const error) (const warning) (const alert) (const notice) | |
| 428 | 4498 (const info) (const debug)) |
| 4499 :group 'warnings) | |
| 4500 | |
| 793 | 4501 (defcustom display-warning-minimum-level 'warning |
| 4502 "Minimum level of warnings that cause the warnings buffer to be displayed. | |
| 4503 Warnings at this level or higher will force the *Warnings* buffer, in which | |
| 4504 the warnings are logged, to be displayed. The warnings in levels below | |
| 4505 this, but at least as high as `log-warning-suppressed-classes', will be | |
| 4506 shown in the minibuffer. | |
| 428 | 4507 |
| 4508 The recognized warning levels, in decreasing order of priority, are | |
| 793 | 4509 'emergency, 'critical, 'error, 'warning, 'alert, 'notice, 'info, and |
| 428 | 4510 'debug. |
| 4511 | |
| 4512 See also `log-warning-minimum-level'. | |
| 4513 | |
| 4514 You can also control which warnings are displayed on a class-by-class | |
| 4515 basis. See `display-warning-suppressed-classes' and | |
| 793 | 4516 `log-warning-suppressed-classes'. |
| 4517 | |
| 3064 | 4518 For a description of the meaning of the levels, see `display-warning'." |
| 793 | 4519 :type '(choice (const emergency) (const critical) |
| 4520 (const error) (const warning) (const alert) (const notice) | |
| 428 | 4521 (const info) (const debug)) |
| 4522 :group 'warnings) | |
| 4523 | |
| 4524 (defvar log-warning-suppressed-classes nil | |
| 4525 "List of classes of warnings that shouldn't be logged or displayed. | |
| 4526 If any of the CLASS symbols associated with a warning is the same as | |
| 4527 any of the symbols listed here, the warning will be completely ignored, | |
| 4528 as it they never happened. | |
| 4529 | |
| 4530 NOTE: In most circumstances, you should *not* set this variable. | |
| 4531 Set `display-warning-suppressed-classes' instead. That way the suppressed | |
| 4532 warnings are not displayed but are still unobtrusively logged. | |
| 4533 | |
| 4534 See also `log-warning-minimum-level' and `display-warning-minimum-level'.") | |
| 4535 | |
| 4536 (defcustom display-warning-suppressed-classes nil | |
| 4537 "List of classes of warnings that shouldn't be displayed. | |
| 4538 If any of the CLASS symbols associated with a warning is the same as | |
| 4539 any of the symbols listed here, the warning will not be displayed. | |
| 4540 The warning will still logged in the *Warnings* buffer (unless also | |
| 4541 contained in `log-warning-suppressed-classes'), but the buffer will | |
| 4542 not be automatically popped up. | |
| 4543 | |
| 4544 See also `log-warning-minimum-level' and `display-warning-minimum-level'." | |
| 4545 :type '(repeat symbol) | |
| 4546 :group 'warnings) | |
| 4547 | |
| 4548 (defvar warning-count 0 | |
| 4549 "Count of the number of warning messages displayed so far.") | |
| 4550 | |
| 4551 (defconst warning-level-alist '((emergency . 8) | |
| 793 | 4552 (critical . 7) |
| 4553 (error . 6) | |
| 4554 (warning . 5) | |
| 4555 (alert . 4) | |
| 428 | 4556 (notice . 3) |
| 4557 (info . 2) | |
| 4558 (debug . 1))) | |
| 4559 | |
| 4560 (defun warning-level-p (level) | |
| 4561 "Non-nil if LEVEL specifies a warning level." | |
| 4562 (and (symbolp level) (assq level warning-level-alist))) | |
| 4563 | |
| 793 | 4564 (defun warning-level-< (level1 level2) |
| 4565 "Non-nil if warning level LEVEL1 is lower than LEVEL2." | |
| 4566 (check-argument-type 'warning-level-p level1) | |
| 4567 (check-argument-type 'warning-level-p level2) | |
| 4568 (< (cdr (assq level1 warning-level-alist)) | |
| 4569 (cdr (assq level2 warning-level-alist)))) | |
| 4570 | |
| 428 | 4571 ;; If you're interested in rewriting this function, be aware that it |
| 4572 ;; could be called at arbitrary points in a Lisp program (when a | |
| 4573 ;; built-in function wants to issue a warning, it will call out to | |
| 4574 ;; this function the next time some Lisp code is evaluated). Therefore, | |
| 4575 ;; this function *must* not permanently modify any global variables | |
| 4576 ;; (e.g. the current buffer) except those that specifically apply | |
| 4577 ;; to the warning system. | |
| 4578 | |
| 4579 (defvar before-init-deferred-warnings nil) | |
| 4580 | |
| 4581 (defun after-init-display-warnings () | |
| 4582 "Display warnings deferred till after the init file is run. | |
| 4583 Warnings that occur before then are deferred so that warning | |
| 4584 suppression in the .emacs file will be honored." | |
| 4585 (while before-init-deferred-warnings | |
| 4586 (apply 'display-warning (car before-init-deferred-warnings)) | |
| 4587 (setq before-init-deferred-warnings | |
| 4588 (cdr before-init-deferred-warnings)))) | |
| 4589 | |
| 4590 (add-hook 'after-init-hook 'after-init-display-warnings) | |
| 4591 | |
| 4592 (defun display-warning (class message &optional level) | |
| 4593 "Display a warning message. | |
| 793 | 4594 |
| 4595 \[This is the most basic entry point for displaying a warning. In practice, | |
| 4596 `lwarn' or `warn' are probably more convenient for most usages.] | |
| 4597 | |
| 4598 CLASS should be a symbol describing what sort of warning this is, such as | |
| 4599 `resource' or `key-mapping' -- this refers, more or less, to the module in | |
| 4600 which the warning is generated and serves to group warnings together with | |
| 4601 similar semantics. A list of such symbols is also accepted. | |
| 4602 | |
| 4603 Optional argument LEVEL can be used to specify a priority for the warning, | |
| 4604 other than default priority `warning'. The currently defined levels are, | |
| 4605 from highest to lowest: | |
| 4606 | |
| 4607 Level Meaning | |
| 4608 ----------------------------------------------------------------------------- | |
| 4609 emergency A fatal or near-fatal error. XEmacs is likely to crash. | |
| 4610 | |
| 4611 critical A serious, nonrecoverable problem has occurred -- e.g., the | |
| 4612 loss of a major subsystem, such as the crash of the X server | |
| 4613 when XEmacs is connected to the server. | |
| 4614 | |
| 4615 error A warning about a problematic condition that should be fixed, | |
| 4616 and XEmacs cannot work around it -- it causes a failure of an | |
| 4617 operation. (In most circumstances, consider just signalling | |
| 4618 an error). However, there is no permanent damage and the | |
| 4619 situation is ultimately recoverable. | |
| 4620 | |
| 4621 warning A warning about a problematic condition that should be fixed, | |
| 4622 but XEmacs can work around it. | |
| 4623 | |
| 4624 \[By default, warnings above here, as well as being logged, cause the | |
| 4625 *Warnings* buffer to be forcibly displayed, so that the warning (and | |
| 4626 previous warnings, since often a whole series of warnings are issued at | |
| 4627 once) can be examined in detail. Also, the annoying presence of the | |
| 4628 *Warnings* buffer will encourage people to go out and fix the | |
| 4629 problem. Warnings below here are displayed in the minibuffer as well as | |
| 4630 logged in the *Warnings* buffer. but the *Warnings* buffer will not be | |
| 4631 forcibly shown, as these represent conditions the user is not expected to | |
| 4632 fix.] | |
| 4633 | |
| 4634 alert A warning about a problematic condition that can't easily be | |
| 4635 fixed (often having to do with the external environment), and | |
| 4636 causes a failure. We don't force the *Warnings* buffer to be | |
| 4637 displayed because the purpose of doing that is to force the | |
| 4638 user to fix the problem so that the buffer no longer appears. | |
| 4639 When the problem is outside the user's control, forcing the | |
| 4640 buffer is pointless and annoying. | |
| 4641 | |
| 4642 notice A warning about a problematic condition that can't easily be | |
| 4643 fixed (often having to do with the external environment), | |
| 4644 but XEmacs can work around it. | |
| 4645 | |
| 4646 info Random info about something new or unexpected that was noticed; | |
| 4647 does not generally indicate a problem. | |
| 4648 | |
| 4649 \[By default, warnings below here are ignored entirely. All warnings above | |
| 4650 here are logged in the *Warnings* buffer.] | |
| 4651 | |
| 4652 debug A debugging notice; normally, not seen at all. | |
| 4653 | |
| 4654 NOTE: `specifier-instance' outputs warnings at level `debug' when errors occur | |
| 4655 in the process of trying to instantiate a particular instantiator. If you | |
| 4656 want to see these, change `log-warning-minimum-level'. | |
| 4657 | |
| 4658 There are two sets of variables. One controls the lower level (see the | |
| 4659 above diagram) -- i.e. ignored entirely. One controls the upper level -- | |
| 4660 whether the *Warnings* buffer is forcibly displayed. In particular: | |
| 4661 | |
| 4662 `display-warning-minimum-level' sets the upper level (see above), and | |
| 4663 `log-warning-minimum-level' the lower level. | |
| 4664 | |
| 4665 Individual classes can be suppressed. `log-warning-suppressed-classes' | |
| 4666 specifies a list of classes where warnings on those classes will be treated | |
| 4667 as if their level is below `log-warning-minimum-level' (i.e. they will be | |
| 4668 ignored completely), regardless of their actual level. Similarly, | |
| 4669 `display-warning-suppressed-classes' specifies a list of classes where | |
| 4670 warnings on those classes will be treated as if their level is below | |
| 4671 `display-warning-minimum-level', but above `log-warning-minimum-level' so | |
| 4672 long as they're not listed in that variable as well." | |
| 428 | 4673 (or level (setq level 'warning)) |
| 4674 (or (listp class) (setq class (list class))) | |
| 4675 (check-argument-type 'warning-level-p level) | |
|
5228
5efbd1253905
Remove all support for InfoDock.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4957
diff
changeset
|
4676 (if (not init-file-loaded) |
| 428 | 4677 (push (list class message level) before-init-deferred-warnings) |
| 4678 (catch 'ignored | |
| 4679 (let ((display-p t) | |
| 4680 (level-num (cdr (assq level warning-level-alist)))) | |
| 4681 (if (< level-num (cdr (assq log-warning-minimum-level | |
| 4682 warning-level-alist))) | |
| 4683 (throw 'ignored nil)) | |
| 4684 (if (intersection class log-warning-suppressed-classes) | |
| 4685 (throw 'ignored nil)) | |
| 4686 | |
| 4687 (if (< level-num (cdr (assq display-warning-minimum-level | |
| 4688 warning-level-alist))) | |
| 4689 (setq display-p nil)) | |
| 4690 (if (and display-p | |
| 4691 (intersection class display-warning-suppressed-classes)) | |
| 4692 (setq display-p nil)) | |
| 4693 (let ((buffer (get-buffer-create "*Warnings*"))) | |
| 4694 (when display-p | |
| 4695 ;; The C code looks at display-warning-tick to determine | |
| 4696 ;; when it should call `display-warning-buffer'. Change it | |
| 4697 ;; to get the C code's attention. | |
| 4698 (incf display-warning-tick)) | |
| 4699 (with-current-buffer buffer | |
| 4700 (goto-char (point-max)) | |
| 4701 (incf warning-count) | |
| 793 | 4702 (let ((start (point))) |
| 4703 (princ (format "(%d) (%s/%s) " | |
| 4704 warning-count | |
| 4705 (mapconcat 'symbol-name class ",") | |
| 4706 level) | |
| 4707 buffer) | |
| 4708 (princ message buffer) | |
| 4709 (terpri buffer) | |
| 4710 (terpri buffer) | |
| 4711 (let ((ex (make-extent start (point)))) | |
| 4712 (set-extent-properties ex | |
| 4713 `(warning t warning-count ,warning-count | |
| 4714 warning-class ,class | |
| 4715 warning-level ,level))))) | |
| 4716 (message "%s: %s" (capitalize (symbol-name level)) message)))))) | |
| 428 | 4717 |
| 4718 (defun warn (&rest args) | |
| 793 | 4719 "Display a formatted warning message at default class and level. |
| 428 | 4720 The message is constructed by passing all args to `format'. The message |
| 4721 is placed in the *Warnings* buffer, which will be popped up at the next | |
| 793 | 4722 redisplay. The class of the warning is `general'; the level is `warning'. |
| 4723 | |
| 4724 See `display-warning' for more info." | |
| 4725 (display-warning 'default (apply 'format args))) | |
| 428 | 4726 |
| 4727 (defun lwarn (class level &rest args) | |
| 793 | 4728 "Display a formatted warning message at specified class and level. |
| 4729 The message is constructed by passing all args to `format'. The message | |
| 4730 is placed in the *Warnings* buffer, which will be popped up at the next | |
| 4731 redisplay. | |
| 4732 | |
| 4733 See `display-warning' for more info." | |
| 428 | 4734 (display-warning class (apply 'format args) |
| 4735 (or level 'warning))) | |
| 4736 | |
| 4737 (defvar warning-marker nil) | |
| 4738 | |
| 4739 ;; When this function is called by the C code, all non-local exits are | |
| 4740 ;; trapped and C-g is inhibited; therefore, it would be a very, very | |
| 4741 ;; bad idea for this function to get into an infinite loop. | |
| 4742 | |
| 4743 (defun display-warning-buffer () | |
| 4744 "Make the buffer that contains the warnings be visible. | |
| 4745 The C code calls this periodically, right before redisplay." | |
| 4746 (let ((buffer (get-buffer-create "*Warnings*"))) | |
| 4747 (when (or (not warning-marker) | |
| 4748 (not (eq (marker-buffer warning-marker) buffer))) | |
| 4749 (setq warning-marker (make-marker)) | |
| 4750 (set-marker warning-marker 1 buffer)) | |
| 4751 (if temp-buffer-show-function | |
| 442 | 4752 (progn |
| 4753 (funcall temp-buffer-show-function buffer) | |
| 4754 (mapc #'(lambda (win) (set-window-start win warning-marker)) | |
| 4755 (windows-of-buffer buffer nil t))) | |
| 428 | 4756 (set-window-start (display-buffer buffer) warning-marker)) |
| 4757 (set-marker warning-marker (point-max buffer) buffer))) | |
| 4758 | |
| 442 | 4759 |
| 4760 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 4761 ;; misc junk ;; | |
| 4762 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 4763 | |
| 428 | 4764 (defun emacs-name () |
| 4765 "Return the printable name of this instance of Emacs." | |
|
5228
5efbd1253905
Remove all support for InfoDock.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4957
diff
changeset
|
4766 (cond ((featurep 'xemacs) "XEmacs") |
| 428 | 4767 (t "Emacs"))) |
| 4768 | |
| 793 | 4769 (defun debug-print-1 (&rest args) |
| 4770 "Send a debugging-type string to standard output. | |
| 4771 If the first argument is a string, it is considered to be a format | |
| 4772 specifier if there are sufficient numbers of other args, and the string is | |
| 4773 formatted using (apply #'format args). Otherwise, each argument is printed | |
| 4774 individually in a numbered list." | |
| 4775 (let ((standard-output 'external-debugging-output) | |
| 4776 (fmt (condition-case nil | |
| 4777 (and (stringp (first args)) | |
| 4778 (apply #'format args)) | |
| 4779 (error nil)))) | |
| 4780 (if fmt | |
| 4781 (progn | |
| 3064 | 4782 (princ (apply #'format args)) |
| 793 | 4783 (terpri)) |
| 4784 (princ "--> ") | |
| 4785 (let ((i 1)) | |
| 4786 (dolist (sgra args) | |
| 4787 (if (> i 1) (princ " ")) | |
| 4788 (princ (format "%d. " i)) | |
| 4789 (prin1 sgra) | |
| 4790 (incf i)) | |
| 4791 (terpri))))) | |
| 4792 | |
| 4793 (defun debug-print (&rest args) | |
| 442 | 4794 "Send a string to the debugging output. |
| 793 | 4795 If the first argument is a string, it is considered to be a format |
| 4796 specifier if there are sufficient numbers of other args, and the string is | |
| 4797 formatted using (apply #'format args). Otherwise, each argument is printed | |
| 4798 individually in a numbered list." | |
| 4799 (let ((standard-output 'external-debugging-output)) | |
| 4800 (apply #'debug-print-1 args))) | |
| 4801 | |
| 4802 (defun debug-backtrace () | |
| 4803 "Send a backtrace to the debugging output." | |
| 4804 (let ((standard-output 'external-debugging-output)) | |
| 4805 (backtrace nil t) | |
| 4806 (terpri))) | |
| 444 | 4807 |
| 428 | 4808 ;;; simple.el ends here |