info.el 88 KB
Newer Older
1
;;; info.el --- info package for Emacs.
Eric S. Raymond's avatar
Eric S. Raymond committed
2

3
;; Copyright (C) 1985, 86, 92, 93, 94, 95, 96, 97, 98, 99 Free Software
Karl Heuer's avatar
Karl Heuer committed
4
;; Foundation, Inc.
Eric S. Raymond's avatar
Eric S. Raymond committed
5

Eric S. Raymond's avatar
Eric S. Raymond committed
6
;; Maintainer: FSF
Eric S. Raymond's avatar
Eric S. Raymond committed
7
;; Keywords: help
Eric S. Raymond's avatar
Eric S. Raymond committed
8

Jim Blandy's avatar
Jim Blandy committed
9 10 11 12
;; This file is part of GNU Emacs.

;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
Eric S. Raymond's avatar
Eric S. Raymond committed
13
;; the Free Software Foundation; either version 2, or (at your option)
Jim Blandy's avatar
Jim Blandy committed
14 15 16 17 18 19 20 21
;; any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
Erik Naggum's avatar
Erik Naggum committed
22 23 24
;; along with GNU Emacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
Jim Blandy's avatar
Jim Blandy committed
25

Eric S. Raymond's avatar
Eric S. Raymond committed
26 27
;;; Commentary:

Erik Naggum's avatar
Erik Naggum committed
28
;; Note that nowadays we expect info files to be made using makeinfo.
Eric S. Raymond's avatar
Eric S. Raymond committed
29 30 31

;;; Code:

32 33 34 35 36 37
(defgroup info nil
  "Info subsystem"
  :group 'help
  :group 'docs)


Jim Blandy's avatar
Jim Blandy committed
38 39 40 41
(defvar Info-history nil
  "List of info nodes user has visited.
Each element of list is a list (FILENAME NODENAME BUFFERPOS).")

42
(defcustom Info-enable-edit nil
43
  "*Non-nil means the \\<Info-mode-map>\\[Info-edit] command in Info can edit the current node.
44 45 46
This is convenient if you want to write info files by hand.
However, we recommend that you not do this.
It is better to write a Texinfo file and generate the Info file from that,
47 48 49
because that gives you a printed manual as well."
  :type 'boolean
  :group 'info)
Jim Blandy's avatar
Jim Blandy committed
50

51
(defvar Info-enable-active-nodes nil
Jim Blandy's avatar
Jim Blandy committed
52 53
  "Non-nil allows Info to execute Lisp code associated with nodes.
The Lisp code is executed when the node is selected.")
54
(put 'Info-enable-active-nodes 'risky-local-variable t)
Jim Blandy's avatar
Jim Blandy committed
55

56 57 58 59
(defcustom Info-fontify t
  "*Non-nil enables highlighting and fonts in Info nodes."
  :type 'boolean
  :group 'info)
60

61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
(defface info-node
  '((t (:bold t :italic t)))
  "Face for Info node names."
  :group 'info)

(defface info-menu-5
  '((t (:underline t)))
  "Face for the fifth and tenth `*' in an Info menu."
  :group 'info)

(defface info-xref
  '((t (:bold t)))
  "Face for Info cross-references."
  :group 'info)

76 77 78 79
(defcustom Info-fontify-maximum-menu-size 30000
  "*Maximum size of menu to fontify if `Info-fontify' is non-nil."
  :type 'integer
  :group 'info)
80

81
(defvar Info-directory-list nil
Jim Blandy's avatar
Jim Blandy committed
82
  "List of directories to search for Info documentation files.
Jim Blandy's avatar
Jim Blandy committed
83
nil means not yet initialized.  In this case, Info uses the environment
84
variable INFOPATH to initialize it, or `Info-default-directory-list'
85 86
if there is no INFOPATH variable in the environment.
The last element of `Info-default-directory-list' is the directory
87
where Emacs installs the Info files that come with it.
88 89 90 91 92

If you run the Emacs executable from the `src' directory in the Emacs
source tree, the `info' directory in the source tree is used as the last
element, in place of the installation Info directory.  This is useful
when you run a version of Emacs without installing it.")
Jim Blandy's avatar
Jim Blandy committed
93

94
(defcustom Info-additional-directory-list nil
95
  "List of additional directories to search for Info documentation files.
96 97 98
These directories are not searched for merging the `dir' file."
  :type '(repeat directory)
  :group 'info)
99

Jim Blandy's avatar
Jim Blandy committed
100
(defvar Info-current-file nil
101 102 103
  "Info file that Info is now looking at, or nil.
This is the name that was specified in Info, not the actual file name.
It doesn't contain directory names or file name extensions added by Info.")
Jim Blandy's avatar
Jim Blandy committed
104 105 106 107 108 109 110 111

(defvar Info-current-subfile nil
  "Info subfile that is actually in the *info* buffer now,
or nil if current info file is not split into subfiles.")

(defvar Info-current-node nil
  "Name of node that Info is now looking at, or nil.")

112
(defvar Info-tag-table-marker nil
Jim Blandy's avatar
Jim Blandy committed
113 114 115
  "Marker pointing at beginning of current Info file's tag table.
Marker points nowhere if file has no tag table.")

116 117 118
(defvar Info-tag-table-buffer nil
  "Buffer used for indirect tag tables.")

119 120 121
(defvar Info-current-file-completions nil
  "Cached completion list for current Info file.")

122 123 124
(defvar Info-index-alternatives nil
  "List of possible matches for last Info-index command.")

125 126
(defvar Info-standalone nil
  "Non-nil if Emacs was started solely as an Info browser.")
127

128
(defvar Info-suffix-list
129 130
  ;; The MS-DOS list should work both when long file names are
  ;; supported (Windows 9X), and when only 8+3 file names are available.
131 132 133
  (if (eq system-type 'ms-dos)
      '( (".gz"      . "gunzip")
	 (".z"       . "gunzip")
134 135 136 137 138 139 140 141
	 (".inz"     . "gunzip")
	 (".igz"     . "gunzip")
	 (".info.Z"  . "gunzip")
	 (".info.gz" . "gunzip")
	 ("-info.Z"  . "gunzip")
	 ("-info.gz" . "gunzip")
	 ("/index.gz". "gunzip")
	 ("/index.z" . "gunzip")
142
	 (".inf"     . nil)
143 144 145
	 (".info"    . nil)
	 ("-info"    . nil)
	 ("/index"   . nil)
146
	 (""         . nil))
147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166
    '( (".info.Z".    "uncompress")
       (".info.Y".    "unyabba")
       (".info.gz".   "gunzip")
       (".info.z".    "gunzip")
       (".info".      nil)
       ("-info.Z".   "uncompress")
       ("-info.Y".   "unyabba")
       ("-info.gz".  "gunzip")
       ("-info.z".   "gunzip")
       ("-info".     nil)
       ("/index.Z".   "uncompress")
       ("/index.Y".   "unyabba")
       ("/index.gz".  "gunzip")
       ("/index.z".   "gunzip")
       ("/index".     nil)
       (".Z".         "uncompress")
       (".Y".         "unyabba")
       (".gz".        "gunzip")
       (".z".         "gunzip")
       ("".           nil)))
167 168
  "List of file name suffixes and associated decoding commands.
Each entry should be (SUFFIX . STRING); the file is given to
169 170 171
the command as standard input.  If STRING is nil, no decoding is done.
Because the SUFFIXes are tried in order, the empty string should
be last in the list.")
172

173
;; Concatenate SUFFIX onto FILENAME.  SUFFIX should start with a dot.
174 175 176 177 178 179
;; First, on ms-dos, delete some of the extension in FILENAME
;; to make room.
(defun info-insert-file-contents-1 (filename suffix)
  (if (not (eq system-type 'ms-dos))
      (concat filename suffix)
    (let* ((sans-exts (file-name-sans-extension filename))
180 181 182
	   ;; How long is the extension in FILENAME (not counting the dot).
	   (ext-len (max 0 (- (length filename) (length sans-exts) 1)))
	   ext-left)
183
      ;; SUFFIX starts with a dot.  If FILENAME already has one,
184
      ;; get rid of the one in SUFFIX (unless suffix is empty).
185
      (or (and (<= ext-len 0)
186
	       (not (eq (aref filename (1- (length filename))) ?.)))
187
	  (= (length suffix) 0)
188
	  (setq suffix (substring suffix 1)))
189 190
      ;; How many chars of that extension should we keep?
      (setq ext-left (min ext-len (max 0 (- 3 (length suffix)))))
191 192 193 194 195
      ;; Get rid of the rest of the extension, and add SUFFIX.
      (concat (substring filename 0 (- (length filename)
				       (- ext-len ext-left)))
	      suffix))))

196 197 198 199
(defun info-file-exists-p (filename)
  (and (file-exists-p filename)
       (not (file-directory-p filename))))

200 201 202
(defun info-insert-file-contents (filename &optional visit)
  "Insert the contents of an info file in the current buffer.
Do the right thing if the file has been compressed or zipped."
203 204 205
  (let ((tail Info-suffix-list)
	fullname decoder)
    (if (file-exists-p filename)
206 207
	;; FILENAME exists--see if that name contains a suffix.
	;; If so, set DECODE accordingly.
208 209 210 211 212 213 214 215
	(progn
	  (while (and tail
		      (not (string-match
			    (concat (regexp-quote (car (car tail))) "$")
			    filename)))
	    (setq tail (cdr tail)))
	  (setq fullname filename
		decoder (cdr (car tail))))
216
      ;; Try adding suffixes to FILENAME and see if we can find something.
217
      (while (and tail
218 219
		  (not (info-file-exists-p (info-insert-file-contents-1
					    filename (car (car tail))))))
220
	(setq tail (cdr tail)))
221 222
      ;; If we found a file with a suffix, set DECODER according to the suffix
      ;; and set FULLNAME to the file's actual name.
223
      (setq fullname (info-insert-file-contents-1 filename (car (car tail)))
224 225
	    decoder (cdr (car tail)))
      (or tail
226
	  (error "Can't find %s or any compressed version of it" filename)))
227 228 229 230 231
    ;; check for conflict with jka-compr
    (if (and (featurep 'jka-compr)
	     (jka-compr-installed-p)
	     (jka-compr-get-compression-info fullname))
	(setq decoder nil))
232
    (if decoder
233 234 235 236 237 238 239 240
	(progn
	  (insert-file-contents-literally fullname visit)
	  (let ((buffer-read-only nil)
		(coding-system-for-write 'no-conversion)
		(default-directory (or (file-name-directory fullname)
				       default-directory)))
	    (call-process-region (point-min) (point-max) decoder t t)))
      (insert-file-contents fullname visit))))
241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274

;; Initialize Info-directory-list, if that hasn't been done yet.
(defun info-initialize ()
  (unless Info-directory-list
    (let ((path (getenv "INFOPATH"))
	  (source (expand-file-name "info/" source-directory))
	  (sibling (if installation-directory
		       (expand-file-name "info/" installation-directory)))
	  alternative)
      (setq Info-directory-list
	    (if path
		(split-string path (regexp-quote path-separator))
	      (if (and sibling (file-exists-p sibling))
		  ;; Uninstalled, Emacs builddir != srcdir.
		  (setq alternative sibling)
		;; Uninstalled, builddir == srcdir
		(setq alternative source))
	      (if (or (member alternative Info-default-directory-list)
		      (not (file-exists-p alternative))
		      ;; On DOS/NT, we use movable executables always,
		      ;; and we must always find the Info dir at run time.
		      (if (memq system-type '(ms-dos windows-nt))
			  nil
			;; Use invocation-directory for Info
			;; only if we used it for exec-directory also.
			(not (string= exec-directory
				      (expand-file-name "lib-src/"
							installation-directory)))))
		  Info-default-directory-list
		;; `alternative' contains the Info files that came with this
		;; version, so we should look there first.  `Info-insert-dir'
		;; currently expects to find `alternative' first on the list.
		(cons alternative
		      (reverse (cdr (reverse Info-default-directory-list))))))))))
275

276 277 278 279 280 281 282 283
;;;###autoload
(defun info-other-window (&optional file)
  "Like `info' but show the Info buffer in another window."
  (interactive (if current-prefix-arg
		   (list (read-file-name "Info file name: " nil nil t))))
  (let (same-window-buffer-names)
    (info file)))
  
284
;;;###autoload (add-hook 'same-window-buffer-names "*info*")
285

Jim Blandy's avatar
Jim Blandy committed
286 287 288 289 290 291 292
;;;###autoload
(defun info (&optional file)
  "Enter Info, the documentation browser.
Optional argument FILE specifies the file to examine;
the default is the top-level directory of Info.

In interactive use, a prefix argument directs this command
Richard M. Stallman's avatar
Richard M. Stallman committed
293 294 295 296 297
to read a file name from the minibuffer.

The search path for Info files is in the variable `Info-directory-list'.
The top-level Info directory is made by combining all the files named `dir' 
in all the directories in that path."
Jim Blandy's avatar
Jim Blandy committed
298 299 300
  (interactive (if current-prefix-arg
		   (list (read-file-name "Info file name: " nil nil t))))
  (if file
301 302 303 304 305 306 307 308 309
      (progn
	(pop-to-buffer "*info*")
	;; If argument already contains parentheses, don't add another set
	;; since the argument will then be parsed improperly.  This also
	;; has the added benefit of allowing node names to be included
	;; following the parenthesized filename.
	(if (and (stringp file) (string-match "(.*)" file))
	    (Info-goto-node file)
	  (Info-goto-node (concat "(" file ")"))))
310 311 312
    (if (get-buffer "*info*")
	(pop-to-buffer "*info*")
      (Info-directory))))
Jim Blandy's avatar
Jim Blandy committed
313

314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330
;;;###autoload
(defun info-standalone ()
  "Run Emacs as a standalone Info reader.
Usage:  emacs -f info-standalone [filename]
In standalone mode, \\<Info-mode-map>\\[Info-exit] exits Emacs itself."
  (setq Info-standalone t)
  (if (and command-line-args-left
	   (not (string-match "^-" (car command-line-args-left))))
      (condition-case err
	  (progn
	    (info (car command-line-args-left))
	    (setq command-line-args-left (cdr command-line-args-left)))
	(error (send-string-to-terminal
		(format "%s\n" (if (eq (car-safe err) 'error)
				   (nth 1 err) err)))
	       (save-buffers-kill-emacs)))
    (info)))
331

332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351
;; See if the the accessible portion of the buffer begins with a node
;; delimiter, and the node header line which follows matches REGEXP.
;; Typically, this test will be followed by a loop that examines the
;; rest of the buffer with (search-forward "\n\^_"), and it's a pity
;; to have the overhead of this special test inside the loop.

;; This function changes match-data, but supposedly the caller might
;; want to use the results of re-search-backward.

;; The return value is the value of point at the beginning of matching
;; REGERXP, if the function succeeds, nil otherwise.
(defun Info-node-at-bob-matching (regexp)
  (and (bobp)			; are we at beginning of buffer?
       (looking-at "\^_")	; does it begin with node delimiter?
       (let (beg)
	 (forward-line 1)
	 (setq beg (point))
	 (forward-line 1)	; does the line after delimiter match REGEXP?
	 (re-search-backward regexp beg t))))

Jim Blandy's avatar
Jim Blandy committed
352 353 354 355
;; Go to an info node specified as separate filename and nodename.
;; no-going-back is non-nil if recovering from an error in this function;
;; it says do not attempt further (recursive) error recovery.
(defun Info-find-node (filename nodename &optional no-going-back)
356
  (info-initialize)
Jim Blandy's avatar
Jim Blandy committed
357 358 359 360
  ;; Convert filename to lower case if not found as specified.
  ;; Expand it.
  (if filename
      (let (temp temp-downcase found)
361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401
        (setq filename (substitute-in-file-name filename))
        (if (string= (downcase filename) "dir")
            (setq found t)
          (let ((dirs (if (string-match "^\\./" filename)
                          ;; If specified name starts with `./'
                          ;; then just try current directory.
                          '("./")
                        (if (file-name-absolute-p filename)
                            ;; No point in searching for an
                            ;; absolute file name
                            '(nil)
                          (if Info-additional-directory-list
                              (append Info-directory-list
                                      Info-additional-directory-list)
                            Info-directory-list)))))
            ;; Search the directory list for file FILENAME.
            (while (and dirs (not found))
              (setq temp (expand-file-name filename (car dirs)))
              (setq temp-downcase
                    (expand-file-name (downcase filename) (car dirs)))
              ;; Try several variants of specified name.
              (let ((suffix-list Info-suffix-list))
                (while (and suffix-list (not found))
                  (cond ((info-file-exists-p
                          (info-insert-file-contents-1
                           temp (car (car suffix-list))))
                         (setq found temp))
                        ((info-file-exists-p
                          (info-insert-file-contents-1
                           temp-downcase (car (car suffix-list))))
                         (setq found temp-downcase)))
                  (setq suffix-list (cdr suffix-list))))
              (setq dirs (cdr dirs)))))
        (if found
            (setq filename found)
          (error "Info file %s does not exist" filename))))
  ;; Record the node we are leaving.
  (if (and Info-current-file (not no-going-back))
      (setq Info-history
            (cons (list Info-current-file Info-current-node (point))
                  Info-history)))
Jim Blandy's avatar
Jim Blandy committed
402
  ;; Go into info buffer.
403
  (or (eq major-mode 'Info-mode) (pop-to-buffer "*info*"))
404
  (buffer-disable-undo (current-buffer))
Jim Blandy's avatar
Jim Blandy committed
405 406 407 408 409
  (or (eq major-mode 'Info-mode)
      (Info-mode))
  (widen)
  (setq Info-current-node nil)
  (unwind-protect
410
      ;; Bind case-fold-search in case the user sets it to nil.
411 412
      (let ((case-fold-search t)
	    anchorpos)
413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450
        ;; Switch files if necessary
        (or (null filename)
            (equal Info-current-file filename)
            (let ((buffer-read-only nil))
              (setq Info-current-file nil
                    Info-current-subfile nil
                    Info-current-file-completions nil
                    buffer-file-name nil)
              (erase-buffer)
              (if (eq filename t)
                  (Info-insert-dir)
                (info-insert-file-contents filename t)
                (setq default-directory (file-name-directory filename)))
              (set-buffer-modified-p nil)
              ;; See whether file has a tag table.  Record the location if yes.
              (goto-char (point-max))
              (forward-line -8)
              ;; Use string-equal, not equal, to ignore text props.
              (if (not (or (string-equal nodename "*")
                           (not
                            (search-forward "\^_\nEnd tag table\n" nil t))))
                  (let (pos)
                    ;; We have a tag table.  Find its beginning.
                    ;; Is this an indirect file?
                    (search-backward "\nTag table:\n")
                    (setq pos (point))
                    (if (save-excursion
                          (forward-line 2)
                          (looking-at "(Indirect)\n"))
                        ;; It is indirect.  Copy it to another buffer
                        ;; and record that the tag table is in that buffer.
                        (let ((buf (current-buffer))
                              (tagbuf
                               (or Info-tag-table-buffer
                                   (generate-new-buffer " *info tag table*"))))
                          (setq Info-tag-table-buffer tagbuf)
                          (save-excursion
                            (set-buffer tagbuf)
451
                            (buffer-disable-undo (current-buffer))
452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476
                            (setq case-fold-search t)
                            (erase-buffer)
                            (insert-buffer-substring buf))
                          (set-marker Info-tag-table-marker
                                      (match-end 0) tagbuf))
                      (set-marker Info-tag-table-marker pos)))
                (set-marker Info-tag-table-marker nil))
              (setq Info-current-file
                    (if (eq filename t) "dir" filename))))
        ;; Use string-equal, not equal, to ignore text props.
        (if (string-equal nodename "*")
            (progn (setq Info-current-node nodename)
                   (Info-set-mode-line))
          ;; Possibilities:
          ;;
          ;; 1. Anchor found in tag table
          ;; 2. Anchor *not* in tag table
          ;;
          ;; 3. Node found in tag table
          ;; 4. Node *not* found in tag table, but found in file
          ;; 5. Node *not* in tag table, and *not* in file
          ;;
          ;; *Or* the same, but in an indirect subfile.

          ;; Search file for a suitable node.
477 478 479 480 481 482
	  (let ((guesspos (point-min))
		(regexp
		 (concat "\\(Node:\\|Ref:\\) *\\("
			 (regexp-quote nodename)
			 "\\) *[,\t\n\177]"))
		(nodepos nil))
483 484 485

            ;; First, search a tag table, if any
            (if (marker-position Info-tag-table-marker)
486
		(let ((found-in-tag-table t)
487
		      found-anchor
488 489
		      found-mode
		      (m Info-tag-table-marker))
490 491 492 493 494 495
                  (save-excursion
                    (set-buffer (marker-buffer m))
                    (goto-char m)
                    (beginning-of-line) ; so re-search will work.

                    ;; Search tag table
496 497 498 499 500 501 502 503 504 505
		    (catch 'foo
		      (while (re-search-forward regexp nil t)
			(setq found-anchor
			      (string-equal "Ref:" (match-string 1)))
			(or nodepos (setq nodepos (point))
			(if (string-equal (match-string 2) nodename)
			    (throw 'foo t))))
		      (if nodepos
			  (goto-char nodepos)
			(setq found-in-tag-table nil)))
506
                    (if found-in-tag-table
507
                        (setq guesspos (1+ (read (current-buffer)))))
508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523
                    (setq found-mode major-mode))

                  ;; Indirect file among split files
                  (if found-in-tag-table
                      (progn
                        ;; If this is an indirect file, determine
                        ;; which file really holds this node and
                        ;; read it in.
                        (if (not (eq found-mode 'Info-mode))
                            ;; Note that the current buffer must be
                            ;; the *info* buffer on entry to
                            ;; Info-read-subfile.  Thus the hackery
                            ;; above.
                            (setq guesspos (Info-read-subfile guesspos)))))

                  ;; Handle anchor
524 525
                  (if found-anchor
		      (goto-char (setq anchorpos guesspos))
526 527

                    ;; Else we may have a node, which we search for:
528 529
		    (goto-char (max (point-min)
				    (- (byte-to-position guesspos) 1000)))
530 531 532
                    ;; Now search from our advised position
                    ;; (or from beg of buffer)
                    ;; to find the actual node.
533 534 535
		    ;; First, check whether the node is right
		    ;; where we are, in case the buffer begins
		    ;; with a node.
536
		    (setq nodepos nil)
537 538 539
		    (or (Info-node-at-bob-matching regexp)
			(catch 'foo
			  (while (search-forward "\n\^_" nil t)
540
			    (forward-line 1)
541 542 543
			    (let ((beg (point)))
			      (forward-line 1)
			      (if (re-search-backward regexp beg t)
544 545 546 547 548 549 550 551 552 553 554 555 556
				  (if (string-equal (match-string 2) nodename)
				      (progn
					(beginning-of-line)
					(throw 'foo t))
				    (or nodepos
				      (setq nodepos (point)))))))
			  (if nodepos
			      (progn
				(goto-char nodepos)
				(beginning-of-line))
			    (error
			     "No such anchor in tag table or node in tag table or file: %s"
			     nodename))))))
557 558 559
	      (goto-char (max (point-min) (- guesspos 1000)))
	      ;; Now search from our advised position (or from beg of buffer)
	      ;; to find the actual node.
560 561
	      ;; First, check whether the node is right where we are, in case
	      ;; the buffer begins with a node.
562
	      (setq nodepos nil)
563 564 565
	      (or (Info-node-at-bob-matching regexp)
		  (catch 'foo
		    (while (search-forward "\n\^_" nil t)
566
		      (forward-line 1)
567 568 569
		      (let ((beg (point)))
			(forward-line 1)
			(if (re-search-backward regexp beg t)
570 571 572 573 574 575 576
			    (if (string-equal (match-string 2) nodename)
				(throw 'foo t)
			      (or nodepos
				  (setq nodepos (point)))))))
		    (if nodepos
			(goto-char nodepos)
		      (error "No such node: %s" nodename))))))
577
          (Info-select-node)
578
	  (goto-char (or anchorpos (point-min)))))
Jim Blandy's avatar
Jim Blandy committed
579 580
    ;; If we did not finish finding the specified node,
    ;; go back to the previous one.
581
    (or Info-current-node no-going-back (null Info-history)
582 583 584 585
        (let ((hist (car Info-history)))
          (setq Info-history (cdr Info-history))
          (Info-find-node (nth 0 hist) (nth 1 hist) t)
          (goto-char (nth 2 hist))))))
Jim Blandy's avatar
Jim Blandy committed
586

587 588
;; Cache the contents of the (virtual) dir file, once we have merged
;; it for the first time, so we can save time subsequently.
589 590
(defvar Info-dir-contents nil)

591 592 593 594
;; Cache for the directory we decided to use for the default-directory
;; of the merged dir text.
(defvar Info-dir-contents-directory nil)

595 596 597 598
;; Record the file attributes of all the files from which we
;; constructed Info-dir-contents.
(defvar Info-dir-file-attributes nil)

599 600
(defvar Info-dir-file-name nil)

601
;; Construct the Info directory node by merging the files named `dir'
602 603 604
;; from various directories.  Set the *info* buffer's
;; default-directory to the first directory we actually get any text
;; from.
605
(defun Info-insert-dir ()
606 607 608 609 610
  (if (and Info-dir-contents Info-dir-file-attributes
	   ;; Verify that none of the files we used has changed
	   ;; since we used it.
	   (eval (cons 'and
		       (mapcar '(lambda (elt)
611 612 613 614
				  (let ((curr (file-attributes 
					       ;; Handle symlinks
					       (file-truename (car elt)))))
				    
615 616 617 618
				    ;; Don't compare the access time.
				    (if curr (setcar (nthcdr 4 curr) 0))
				    (setcar (nthcdr 4 (cdr elt)) 0)
				    (equal (cdr elt) curr)))
619
			       Info-dir-file-attributes))))
620 621 622
      (progn
	(insert Info-dir-contents)
	(goto-char (point-min)))
623
    (let ((dirs Info-directory-list)
624 625
	  ;; Bind this in case the user sets it to nil.
	  (case-fold-search t)
626 627
	  ;; This is set non-nil if we find a problem in some input files.
	  problems
628
	  buffers buffer others nodes dirs-done)
629

630 631
      (setq Info-dir-file-attributes nil)

632
      ;; Search the directory list for the directory file.
633
      (while dirs
634 635 636 637 638
	(let ((truename (file-truename (expand-file-name (car dirs)))))
	  (or (member truename dirs-done)
	      (member (directory-file-name truename) dirs-done)
	      ;; Try several variants of specified name.
	      ;; Try upcasing, appending `.info', or both.
639 640 641 642 643 644 645 646 647 648 649
	      (let* (file
		     (attrs
		      (or
		       (progn (setq file (expand-file-name "dir" truename))
			      (file-attributes file))
		       (progn (setq file (expand-file-name "DIR" truename))
			      (file-attributes file))
		       (progn (setq file (expand-file-name "dir.info" truename))
			      (file-attributes file))
		       (progn (setq file (expand-file-name "DIR.INFO" truename))
			      (file-attributes file)))))
650 651 652 653
		(setq dirs-done
		      (cons truename
			    (cons (directory-file-name truename)
				  dirs-done)))
654 655 656 657
		(if attrs
		    (save-excursion
		      (or buffers
			  (message "Composing main Info directory..."))
658
		      (set-buffer (generate-new-buffer " info dir"))
659 660 661
		      (condition-case nil
			  (progn
			    (insert-file-contents file)
662 663
			    (make-local-variable 'Info-dir-file-name)
			    (setq Info-dir-file-name file)
664 665 666 667 668
			    (setq buffers (cons (current-buffer) buffers)
				  Info-dir-file-attributes
				  (cons (cons file attrs)
					Info-dir-file-attributes)))
			(error (kill-buffer (current-buffer))))))))
669 670
	  (or (cdr dirs) (setq Info-dir-contents-directory
			       (file-name-as-directory (car dirs))))
671 672
	  (setq dirs (cdr dirs))))
      
673
      (or buffers
674
	  (error "Can't find the Info directory node"))
675
      ;; Distinguish the dir file that comes with Emacs from all the
676
      ;; others.  Yes, that is really what this is supposed to do.
677 678 679 680
      ;; The definition of `Info-directory-list' puts it first on that
      ;; list and so last in `buffers' at this point.
      (setq buffer (car (last buffers))
	    others (delq buffer buffers))
681

682 683 684
      ;; Insert the entire original dir file as a start; note that we've
      ;; already saved its default directory to use as the default
      ;; directory for the whole concatenation.
685
      (insert-buffer buffer)
686

687 688
      ;; Look at each of the other buffers one by one.
      (while others
689 690
	(let ((other (car others))
	      this-buffer-nodes)
691 692 693 694 695 696 697 698 699
	  ;; In each, find all the menus.
	  (save-excursion
	    (set-buffer other)
	    (goto-char (point-min))
	    ;; Find each menu, and add an elt to NODES for it.
	    (while (re-search-forward "^\\* Menu:" nil t)
	      (let (beg nodename end)
		(forward-line 1)
		(setq beg (point))
700 701 702
		(or (search-backward "\n\^_" nil 'move)
		    (looking-at "\^_")
		    (signal 'search-failed (list "\n\^_")))
703 704
		(search-forward "Node: ")
		(setq nodename (Info-following-node-name))
705
		(search-forward "\n\^_" nil 'move)
706 707
		(beginning-of-line)
		(setq end (point))
708 709 710 711 712 713 714
		(setq this-buffer-nodes
		      (cons (list nodename other beg end)
			    this-buffer-nodes))))
	    (if (assoc-ignore-case "top" this-buffer-nodes)
		(setq nodes (nconc this-buffer-nodes nodes))
	      (setq problems t)
	      (message "No `top' node in %s" Info-dir-file-name))))
715 716 717 718 719 720 721
	(setq others (cdr others)))
      ;; Add to the main menu a menu item for each other node.
      (re-search-forward "^\\* Menu:")
      (forward-line 1)
      (let ((menu-items '("top"))
	    (nodes nodes)
	    (case-fold-search t)
722
	    (end (save-excursion (search-forward "\^_" nil t) (point))))
723 724
	(while nodes
	  (let ((nodename (car (car nodes))))
725 726
	    (save-excursion
	      (or (member (downcase nodename) menu-items)
727
		  (re-search-forward (concat "^\\* +"
728 729 730 731 732 733
					     (regexp-quote nodename)
					     "::")
				     end t)
		  (progn
		    (insert "* " nodename "::" "\n")
		    (setq menu-items (cons nodename menu-items))))))
734 735 736 737 738 739 740
	  (setq nodes (cdr nodes))))
      ;; Now take each node of each of the other buffers
      ;; and merge it into the main buffer.
      (while nodes
	(let ((nodename (car (car nodes))))
	  (goto-char (point-min))
	  ;; Find the like-named node in the main buffer.
741
	  (if (re-search-forward (concat "^\^_.*\n.*Node: "
742 743 744 745
					 (regexp-quote nodename)
					 "[,\n\t]")
				 nil t)
	      (progn
746
		(search-forward "\n\^_" nil 'move)
747 748
		(beginning-of-line)
		(insert "\n"))
749 750
	    ;; If none exists, add one.
	    (goto-char (point-max))
751
	    (insert "\^_\nFile: dir\tNode: " nodename "\n\n* Menu:\n\n"))
752 753
	  ;; Merge the text from the other buffer's menu
	  ;; into the menu in the like-named node in the main buffer.
754
	  (apply 'insert-buffer-substring (cdr (car nodes))))
755 756 757 758
	(setq nodes (cdr nodes)))
      ;; Kill all the buffers we just made.
      (while buffers
	(kill-buffer (car buffers))
759
	(setq buffers (cdr buffers)))
760 761 762 763
      (goto-char (point-min))
      (if problems
	  (message "Composing main Info directory...problems encountered, see `*Messages*'")
	(message "Composing main Info directory...done")))
764 765
    (setq Info-dir-contents (buffer-string)))
  (setq default-directory Info-dir-contents-directory))
766

767 768
;; Note that on entry to this function the current-buffer must be the
;; *info* buffer; not the info tags buffer.
Jim Blandy's avatar
Jim Blandy committed
769
(defun Info-read-subfile (nodepos)
770 771
  ;; NODEPOS is either a position (in the Info file as a whole,
  ;; not relative to a subfile) or the name of a subfile.
Jim Blandy's avatar
Jim Blandy committed
772 773
  (let (lastfilepos
	lastfilename)
774 775 776 777
    (if (numberp nodepos)
	(save-excursion
	  (set-buffer (marker-buffer Info-tag-table-marker))
	  (goto-char (point-min))
778 779
	  (or (looking-at "\^_")
	      (search-forward "\n\^_"))
780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798
	  (forward-line 2)
	  (catch 'foo
	    (while (not (looking-at "\^_"))
	      (if (not (eolp))
		  (let ((beg (point))
			thisfilepos thisfilename)
		    (search-forward ": ")
		    (setq thisfilename  (buffer-substring beg (- (point) 2)))
		    (setq thisfilepos (read (current-buffer)))
		    ;; read in version 19 stops at the end of number.
		    ;; Advance to the next line.
		    (forward-line 1)
		    (if (> thisfilepos nodepos)
			(throw 'foo t))
		    (setq lastfilename thisfilename)
		    (setq lastfilepos thisfilepos))
		(forward-line 1)))))
      (setq lastfilename nodepos)
      (setq lastfilepos 0))
799 800
    ;; Assume previous buffer is in Info-mode.
    ;; (set-buffer (get-buffer "*info*"))
Jim Blandy's avatar
Jim Blandy committed
801 802 803 804 805
    (or (equal Info-current-subfile lastfilename)
	(let ((buffer-read-only nil))
	  (setq buffer-file-name nil)
	  (widen)
	  (erase-buffer)
806
	  (info-insert-file-contents lastfilename)
Jim Blandy's avatar
Jim Blandy committed
807 808 809
	  (set-buffer-modified-p nil)
	  (setq Info-current-subfile lastfilename)))
    (goto-char (point-min))
810 811 812
    (if (looking-at "\^_")
	(forward-char 1)
      (search-forward "\n\^_"))
813 814
    (if (numberp nodepos)
	(+ (- nodepos lastfilepos) (point)))))
Jim Blandy's avatar
Jim Blandy committed
815 816 817

;; Select the info node that point is in.
(defun Info-select-node ()
818 819 820 821
  ;; Bind this in case the user sets it to nil.
  (let ((case-fold-search t))
    (save-excursion
     ;; Find beginning of node.
822 823 824 825 826
     (if (search-backward "\n\^_" nil 'move)
	 (forward-line 2)
       (if (looking-at "\^_")
	   (forward-line 1)
	 (signal 'search-failed (list "\n\^_"))))
827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850
     ;; Get nodename spelled as it is in the node.
     (re-search-forward "Node:[ \t]*")
     (setq Info-current-node
	   (buffer-substring-no-properties (point)
					   (progn
					    (skip-chars-forward "^,\t\n")
					    (point))))
     (Info-set-mode-line)
     ;; Find the end of it, and narrow.
     (beginning-of-line)
     (let (active-expression)
       (narrow-to-region (point)
			 (if (re-search-forward "\n[\^_\f]" nil t)
			     (prog1
			      (1- (point))
			      (if (looking-at "[\n\^_\f]*execute: ")
				  (progn
				    (goto-char (match-end 0))
				    (setq active-expression
					  (read (current-buffer))))))
			   (point-max)))
       (if Info-enable-active-nodes (eval active-expression))
       (if Info-fontify (Info-fontify-node))
       (run-hooks 'Info-selection-hook)))))
Jim Blandy's avatar
Jim Blandy committed
851 852 853 854

(defun Info-set-mode-line ()
  (setq mode-line-buffer-identification
	(concat
855
	 "  Info:  ("
Jim Blandy's avatar
Jim Blandy committed
856 857 858 859 860 861 862 863 864 865 866
	 (if Info-current-file
	     (file-name-nondirectory Info-current-file)
	   "")
	 ")"
	 (or Info-current-node ""))))

;; Go to an info node specified with a filename-and-nodename string
;; of the sort that is found in pointers in nodes.

(defun Info-goto-node (nodename)
  "Go to info node named NAME.  Give just NODENAME or (FILENAME)NODENAME."
867
  (interactive (list (Info-read-node-name "Goto node: ")))
868
  (info-initialize)
Jim Blandy's avatar
Jim Blandy committed
869 870 871 872 873 874 875 876 877 878 879
  (let (filename)
    (string-match "\\s *\\((\\s *\\([^\t)]*\\)\\s *)\\s *\\|\\)\\(.*\\)"
		  nodename)
    (setq filename (if (= (match-beginning 1) (match-end 1))
		       ""
		     (substring nodename (match-beginning 2) (match-end 2)))
	  nodename (substring nodename (match-beginning 3) (match-end 3)))
    (let ((trim (string-match "\\s *\\'" filename)))
      (if trim (setq filename (substring filename 0 trim))))
    (let ((trim (string-match "\\s *\\'" nodename)))
      (if trim (setq nodename (substring nodename 0 trim))))
880
    (if transient-mark-mode (deactivate-mark))
Jim Blandy's avatar
Jim Blandy committed
881 882
    (Info-find-node (if (equal filename "") nil filename)
		    (if (equal nodename "") "Top" nodename))))
883

884 885
(defvar Info-read-node-completion-table)

886
;; This function is used as the "completion table" while reading a node name.
887
;; It does completion using the alist in Info-read-node-completion-table
888 889 890 891 892 893
;; unless STRING starts with an open-paren.
(defun Info-read-node-name-1 (string predicate code)
  (let ((no-completion (and (> (length string) 0) (eq (aref string 0) ?\())))
    (cond ((eq code nil)
	   (if no-completion
	       string
894
	     (try-completion string Info-read-node-completion-table predicate)))
895 896 897
	  ((eq code t)
	   (if no-completion
	       nil
898
	     (all-completions string Info-read-node-completion-table predicate)))
899 900 901
	  ((eq code 'lambda)
	   (if no-completion
	       t
902
	     (assoc string Info-read-node-completion-table))))))
903

904 905
(defun Info-read-node-name (prompt &optional default)
  (let* ((completion-ignore-case t)
906
	 (Info-read-node-completion-table (Info-build-node-completions))
907
	 (nodename (completing-read prompt 'Info-read-node-name-1 nil t)))
908 909 910 911 912 913 914
    (if (equal nodename "")
	(or default
	    (Info-read-node-name prompt))
      nodename)))

(defun Info-build-node-completions ()
  (or Info-current-file-completions
915 916
      (let ((compl nil)
	    ;; Bind this in case the user sets it to nil.
917 918
	    (case-fold-search t)
	    (node-regexp "Node: *\\([^,\n]*\\) *[,\n\t]"))
919 920 921
	(save-excursion
	  (save-restriction
	    (if (marker-buffer Info-tag-table-marker)
922 923
		(let ((marker Info-tag-table-marker))
		  (set-buffer (marker-buffer marker))
924
		  (widen)
925
		  (goto-char marker)
926 927 928 929 930 931 932
		  (while (re-search-forward "\nNode: \\(.*\\)\177" nil t)
		    (setq compl
			  (cons (list (buffer-substring (match-beginning 1)
							(match-end 1)))
				compl))))
	      (widen)
	      (goto-char (point-min))
933 934 935 936 937
	      ;; If the buffer begins with a node header, process that first.
	      (if (Info-node-at-bob-matching node-regexp)
		  (setq compl (list (buffer-substring (match-beginning 1)
						      (match-end 1)))))
	      ;; Now for the rest of the nodes.
938 939 940 941
	      (while (search-forward "\n\^_" nil t)
		(forward-line 1)
		(let ((beg (point)))
		  (forward-line 1)
942
		  (if (re-search-backward node-regexp beg t)
943 944 945 946 947
		      (setq compl 
			    (cons (list (buffer-substring (match-beginning 1)
							  (match-end 1)))
				  compl))))))))
	(setq Info-current-file-completions compl))))
Jim Blandy's avatar
Jim Blandy committed
948

Jim Blandy's avatar
Jim Blandy committed
949 950
(defun Info-restore-point (hl)
  "If this node has been visited, restore the point value when we left."
951 952
  (while hl
    (if (and (equal (nth 0 (car hl)) Info-current-file)
953 954
	     ;; Use string-equal, not equal, to ignore text props.
	     (string-equal (nth 1 (car hl)) Info-current-node))
955
	(progn
956 957
	  (goto-char (nth 2 (car hl)))
	  (setq hl nil))		;terminate the while at next iter
958
      (setq hl (cdr hl)))))
Jim Blandy's avatar
Jim Blandy committed
959

Jim Blandy's avatar
Jim Blandy committed
960
(defvar Info-last-search nil
961
  "Default regexp for \\<Info-mode-map>\\[Info-search] command to search for.")
Jim Blandy's avatar
Jim Blandy committed
962 963 964 965

(defun Info-search (regexp)
  "Search for REGEXP, starting from point, and select node it's found in."
  (interactive "sSearch (regexp): ")
966
  (if transient-mark-mode (deactivate-mark))
Jim Blandy's avatar
Jim Blandy committed
967 968 969
  (if (equal regexp "")
      (setq regexp Info-last-search)
    (setq Info-last-search regexp))
970 971 972 973 974 975 976 977 978 979 980
  (when regexp
    (let ((found ()) current
	  (onode Info-current-node)
	  (ofile Info-current-file)
	  (opoint (point))
	  (ostart (window-start))
	  (osubfile Info-current-subfile))
      (save-excursion
	(save-restriction
	  (widen)
	  (if (null Info-current-subfile)
Jim Blandy's avatar
Jim Blandy committed
981
	      (progn (re-search-forward regexp) (setq found (point)))
982 983 984 985 986 987 988 989
	    (condition-case err
		(progn (re-search-forward regexp) (setq found (point)))
	      (search-failed nil)))))
      (if (not found) ;can only happen in subfile case -- else would have erred
	  (unwind-protect
	      (let ((list ()))
		(save-excursion
		  (set-buffer (marker-buffer Info-tag-table-marker))
990
		  (goto-char (point-min))
991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024
		  (search-forward "\n\^_\nIndirect:")
		  (save-restriction
		    (narrow-to-region (point)
				      (progn (search-forward "\n\^_")
					     (1- (point))))
		    (goto-char (point-min))
		    (search-forward (concat "\n" osubfile ": "))
		    (beginning-of-line)
		    (while (not (eobp))
		      (re-search-forward "\\(^.*\\): [0-9]+$")
		      (goto-char (+ (match-end 1) 2))
		      (setq list (cons (cons (read (current-buffer))
					     (buffer-substring
					      (match-beginning 1) (match-end 1)))
				       list))
		      (goto-char (1+ (match-end 0))))
		    (setq list (nreverse list)
			  current (car (car list))
			  list (cdr list))))
		(while list
		  (message "Searching subfile %s..." (cdr (car list)))
		  (Info-read-subfile (car (car list)))
		  (setq list (cdr list))
;;;		(goto-char (point-min))
		  (if (re-search-forward regexp nil t)
		      (setq found (point) list ())))
		(if found
		    (message "")
		  (signal 'search-failed (list regexp))))
	    (if (not found)
		(progn (Info-read-subfile osubfile)
		       (goto-char opoint)
		       (Info-select-node)
		       (set-window-start (selected-window) ostart)))))
Jim Blandy's avatar
Jim Blandy committed
1025 1026 1027
    (widen)
    (goto-char found)
    (Info-select-node)
1028 1029
    ;; Use string-equal, not equal, to ignore text props.
    (or (and (string-equal onode Info-current-node)
Jim Blandy's avatar
Jim Blandy committed
1030 1031
	     (equal ofile Info-current-file))
	(setq Info-history (cons (list ofile onode opoint)
1032
				 Info-history))))))
Jim Blandy's avatar
Jim Blandy committed
1033 1034 1035 1036 1037

;; Extract the value of the node-pointer named NAME.
;; If there is none, use ERRORNAME in the error message; 
;; if ERRORNAME is nil, just return nil.
(defun Info-extract-pointer (name &optional errorname)
1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049
  ;; Bind this in case the user sets it to nil.
  (let ((case-fold-search t))
    (save-excursion
      (goto-char (point-min))
      (forward-line 1)
      (if (re-search-backward (concat name ":") nil t)
	  (progn
	    (goto-char (match-end 0))
	    (Info-following-node-name))
	(if (eq errorname t)
	    nil
	  (error "Node has no %s" (capitalize (or errorname name))))))))
Jim Blandy's avatar
Jim Blandy committed
1050

1051 1052
;; Return the node name in the buffer following point.
;; ALLOWEDCHARS, if non-nil, goes within [...] to make a regexp
1053
;; saying which chars may appear in the node name.
Jim Blandy's avatar
Jim Blandy committed
1054 1055
(defun Info-following-node-name (&optional allowedchars)
  (skip-chars-forward " \t")
1056
  (buffer-substring-no-properties
Jim Blandy's avatar
Jim Blandy committed
1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075
   (point)
   (progn
     (while (looking-at (concat "[" (or allowedchars "^,\t\n") "]"))
       (skip-chars-forward (concat (or allowedchars "^,\t\n") "("))
       (if (looking-at "(")
	   (skip-chars-forward "^)")))
     (skip-chars-backward " ")
     (point))))

(defun Info-next ()
  "Go to the next node of this node."
  (interactive)
  (Info-goto-node (Info-extract-pointer "next")))

(defun Info-prev ()
  "Go to the previous node of this node."
  (interactive)
  (Info-goto-node (Info-extract-pointer "prev[ious]*" "previous")))

1076 1077 1078
(defun Info-up (&optional same-file)
  "Go to the superior node of this node.
If SAME-FILE is non-nil, do not move to a different Info file."
Jim Blandy's avatar
Jim Blandy committed
1079
  (interactive)
1080 1081 1082 1083 1084
  (let ((node (Info-extract-pointer "up")))
    (and same-file
	 (string-match "^(" node)
	 (error "Up node is in another Info file"))
    (Info-goto-node node))
Jim Blandy's avatar
Jim Blandy committed
1085
  (Info-restore-point Info-history))
Jim Blandy's avatar
Jim Blandy committed
1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110

(defun Info-last ()
  "Go back to the last node visited."
  (interactive)
  (or Info-history
      (error "This is the first Info node you looked at"))
  (let (filename nodename opoint)
    (setq filename (car (car Info-history)))
    (setq nodename (car (cdr (car Info-history))))
    (setq opoint (car (cdr (cdr (car Info-history)))))
    (setq Info-history (cdr Info-history))
    (Info-find-node filename nodename)
    (setq Info-history (cdr Info-history))
    (goto-char opoint)))

(defun Info-directory ()
  "Go to the Info directory node."
  (interactive)
  (Info-find-node "dir" "top"))

(defun Info-follow-reference (footnotename)
  "Follow cross reference named NAME to the node it refers to.
NAME may be an abbreviation of the reference name."
  (interactive
   (let ((completion-ignore-case t)
1111
	 (case-fold-search t)
1112
	 completions default alt-default (start-point (point)) str i bol eol)
Jim Blandy's avatar
Jim Blandy committed
1113
     (save-excursion
1114 1115 1116 1117 1118 1119
       ;; Store end and beginning of line.
       (end-of-line)
       (setq eol (point))
       (beginning-of-line)
       (setq bol (point))

Jim Blandy's avatar
Jim Blandy committed
1120 1121 1122 1123