cb87c1198f973d2780e3dd8cd46ca869098ce946
[bpt/emacs.git] / lisp / textmodes / texinfmt.el
1 ;;; texinfmt.el --- format Texinfo files into Info files
2
3 ;; Copyright (C) 1985-1986, 1988, 1990-1998, 2000-2012
4 ;; Free Software Foundation, Inc.
5
6 ;; Maintainer: Robert J. Chassell <bug-texinfo@gnu.org>
7 ;; Keywords: maint, tex, docs
8
9 ;; This file is part of GNU Emacs.
10
11 ;; GNU Emacs is free software: you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation, either version 3 of the License, or
14 ;; (at your option) any later version.
15
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
20
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
23
24 ;;; Commentary:
25
26 ;;; Code:
27
28 ;;; Emacs lisp functions to convert Texinfo files to Info files.
29
30 (defvar texinfmt-version "2.42 of 7 Jul 2006")
31
32 (defun texinfmt-version (&optional here)
33 "Show the version of texinfmt.el in the minibuffer.
34 If optional argument HERE is non-nil, insert info at point."
35 (interactive "P")
36 (let ((version-string
37 (format "Version of \`texinfmt.el\': %s" texinfmt-version)))
38 (if here
39 (insert version-string)
40 (if (called-interactively-p 'interactive)
41 (message "%s" version-string)
42 version-string))))
43
44 \f
45 ;;; Variable definitions
46
47 (require 'texinfo) ; So `texinfo-footnote-style' is defined.
48 (require 'texnfo-upd) ; So `texinfo-section-types-regexp' is defined.
49
50 (defvar texinfo-vindex)
51 (defvar texinfo-findex)
52 (defvar texinfo-cindex)
53 (defvar texinfo-pindex)
54 (defvar texinfo-tindex)
55 (defvar texinfo-kindex)
56 (defvar texinfo-last-node)
57 (defvar texinfo-node-names)
58 (defvar texinfo-enclosure-list)
59 (defvar texinfo-alias-list)
60 (defvar texinfo-fold-nodename-case nil)
61
62 (defvar texinfo-command-start)
63 (defvar texinfo-command-end)
64 (defvar texinfo-command-name)
65 (defvar texinfo-defun-type)
66 (defvar texinfo-last-node-pos)
67 (defvar texinfo-stack)
68 (defvar texinfo-short-index-cmds-alist)
69 (defvar texinfo-short-index-format-cmds-alist)
70 (defvar texinfo-format-filename)
71 (defvar texinfo-footnote-number)
72
73 (defvar texinfo-raisesections-alist
74 '((@chapter . @chapter) ; Cannot go higher
75 (@unnumbered . @unnumbered)
76 (@centerchap . @unnumbered)
77
78 (@majorheading . @majorheading)
79 (@chapheading . @chapheading)
80 (@appendix . @appendix)
81
82 (@section . @chapter)
83 (@unnumberedsec . @unnumbered)
84 (@heading . @chapheading)
85 (@appendixsec . @appendix)
86
87 (@subsection . @section)
88 (@unnumberedsubsec . @unnumberedsec)
89 (@subheading . @heading)
90 (@appendixsubsec . @appendixsec)
91
92 (@subsubsection . @subsection)
93 (@unnumberedsubsubsec . @unnumberedsubsec)
94 (@subsubheading . @subheading)
95 (@appendixsubsubsec . @appendixsubsec))
96 "An alist of next higher levels for chapters, sections, etc...
97 For example, section to chapter, subsection to section.
98 Used by `texinfo-raise-lower-sections'.
99 The keys specify types of section; the values correspond to the next
100 higher types.")
101
102 (defvar texinfo-lowersections-alist
103 '((@chapter . @section)
104 (@unnumbered . @unnumberedsec)
105 (@centerchap . @unnumberedsec)
106 (@majorheading . @heading)
107 (@chapheading . @heading)
108 (@appendix . @appendixsec)
109
110 (@section . @subsection)
111 (@unnumberedsec . @unnumberedsubsec)
112 (@heading . @subheading)
113 (@appendixsec . @appendixsubsec)
114
115 (@subsection . @subsubsection)
116 (@unnumberedsubsec . @unnumberedsubsubsec)
117 (@subheading . @subsubheading)
118 (@appendixsubsec . @appendixsubsubsec)
119
120 (@subsubsection . @subsubsection) ; Cannot go lower.
121 (@unnumberedsubsubsec . @unnumberedsubsubsec)
122 (@subsubheading . @subsubheading)
123 (@appendixsubsubsec . @appendixsubsubsec))
124 "An alist of next lower levels for chapters, sections, etc...
125 For example, chapter to section, section to subsection.
126 Used by `texinfo-raise-lower-sections'.
127 The keys specify types of section; the values correspond to the next
128 lower types.")
129 \f
130 ;;; Syntax table
131
132 (defvar texinfo-format-syntax-table
133 (let ((st (make-syntax-table)))
134 (modify-syntax-entry ?\" " " st)
135 (modify-syntax-entry ?\\ " " st)
136 (modify-syntax-entry ?@ "\\" st)
137 (modify-syntax-entry ?\^q "\\" st)
138 (modify-syntax-entry ?\[ "." st)
139 (modify-syntax-entry ?\] "." st)
140 (modify-syntax-entry ?\( "." st)
141 (modify-syntax-entry ?\) "." st)
142 (modify-syntax-entry ?{ "(}" st)
143 (modify-syntax-entry ?} "){" st)
144 (modify-syntax-entry ?\' "." st)
145 st))
146
147 \f
148 ;;; Top level buffer and region formatting functions
149
150 ;;;###autoload
151 (defun texinfo-format-buffer (&optional nosplit)
152 "Process the current buffer as texinfo code, into an Info file.
153 The Info file output is generated in a buffer visiting the Info file
154 name specified in the @setfilename command.
155
156 Non-nil argument (prefix, if interactive) means don't make tag table
157 and don't split the file if large. You can use `Info-tagify' and
158 `Info-split' to do these manually."
159 (interactive "P")
160 (let ((lastmessage "Formatting Info file...")
161 (coding-system-for-write buffer-file-coding-system))
162 (message lastmessage)
163 (widen)
164 (texinfo-format-buffer-1)
165 (Info-tagify)
166 (if nosplit
167 nil
168 (if (> (buffer-size) (+ 50000 Info-split-threshold))
169 (progn
170 (message (setq lastmessage "Splitting Info file..."))
171 (Info-split))))
172 (message (concat lastmessage
173 (if (called-interactively-p 'interactive)
174 "done. Now save it." "done.")))))
175
176 (defvar texinfo-region-buffer-name "*Info Region*"
177 "Name of the temporary buffer used by \\[texinfo-format-region].")
178
179 (defvar texinfo-pre-format-hook nil
180 "Hook called before the conversion of the Texinfo file to Info format.
181 The functions on this hook are called with argument BUFFER, the buffer
182 containing the Texinfo file.")
183
184 ;; These come from tex-mode.el.
185 (defvar tex-start-of-header)
186 (defvar tex-end-of-header)
187
188 ;;;###autoload
189 (defun texinfo-format-region (region-beginning region-end)
190 "Convert the current region of the Texinfo file to Info format.
191 This lets you see what that part of the file will look like in Info.
192 The command is bound to \\[texinfo-format-region]. The text that is
193 converted to Info is stored in a temporary buffer."
194 (interactive "r")
195 (message "Converting region to Info format...")
196 (let (texinfo-command-start
197 texinfo-command-end
198 texinfo-command-name
199 texinfo-vindex
200 texinfo-findex
201 texinfo-cindex
202 texinfo-pindex
203 texinfo-tindex
204 texinfo-kindex
205 texinfo-stack
206 (texinfo-format-filename "")
207 texinfo-example-start
208 texinfo-last-node-pos
209 texinfo-last-node
210 texinfo-node-names
211 (texinfo-footnote-number 0)
212 last-input-buffer
213 (fill-column-for-info fill-column)
214 (input-buffer (current-buffer))
215 (input-directory default-directory)
216 (header-text "")
217 (header-beginning 1)
218 (header-end 1))
219
220 ;;; Copy lines between beginning and end of header lines,
221 ;;; if any, or else copy the `@setfilename' line, if any.
222 (save-excursion
223 (save-restriction
224 (widen)
225 (goto-char (point-min))
226 (let ((search-end (line-beginning-position 101)))
227 (if (or
228 ;; Either copy header text.
229 (and
230 (prog1
231 (search-forward tex-start-of-header search-end t)
232 (forward-line 1)
233 ;; Mark beginning of header.
234 (setq header-beginning (point)))
235 (prog1
236 (search-forward tex-end-of-header nil t)
237 (beginning-of-line)
238 ;; Mark end of header
239 (setq header-end (point))))
240 ;; Or copy @filename line.
241 (prog2
242 (goto-char (point-min))
243 (search-forward "@setfilename" search-end t)
244 (beginning-of-line)
245 (setq header-beginning (point))
246 (forward-line 1)
247 (setq header-end (point))))
248
249 ;; Copy header
250 (setq header-text
251 (buffer-substring-no-properties
252 (min header-beginning region-beginning)
253 header-end))))))
254
255 ;;; Find a buffer to use.
256 (switch-to-buffer (get-buffer-create texinfo-region-buffer-name))
257 (setq buffer-read-only t)
258 (let ((inhibit-read-only t))
259 (erase-buffer)
260 ;; Insert the header into the buffer.
261 (insert header-text)
262 ;; Insert the region into the buffer.
263 (insert-buffer-substring
264 input-buffer
265 (max region-beginning header-end)
266 region-end)
267 (run-hook-with-args 'texinfo-pre-format-hook input-buffer)
268 ;; Make sure region ends in a newline.
269 (or (= (preceding-char) ?\n)
270 (insert "\n"))
271
272 (goto-char (point-min))
273 (texinfo-mode)
274 (message "Converting region to Info format...")
275 (setq fill-column fill-column-for-info)
276 ;; Install a syntax table useful for scanning command operands.
277 (set-syntax-table texinfo-format-syntax-table)
278
279 ;; Insert @include files so `texinfo-raise-lower-sections' can
280 ;; work on them without losing track of multiple
281 ;; @raise/@lowersections commands.
282 (while (re-search-forward "^@include" nil t)
283 (setq texinfo-command-end (point))
284 (let ((filename (concat input-directory
285 (texinfo-parse-line-arg))))
286 (re-search-backward "^@include")
287 (delete-region (point) (line-beginning-position 2))
288 (message "Reading included file: %s" filename)
289 (save-excursion
290 (save-restriction
291 (narrow-to-region
292 (point)
293 (+ (point) (car (cdr (insert-file-contents filename)))))
294 (goto-char (point-min))
295 ;; Remove `@setfilename' line from included file, if any,
296 ;; so @setfilename command not duplicated.
297 (if (re-search-forward "^@setfilename" (line-end-position 100) t)
298 (delete-region (line-beginning-position 1)
299 (line-beginning-position 2)))))))
300
301 ;; Raise or lower level of each section, if necessary.
302 (goto-char (point-min))
303 (texinfo-raise-lower-sections)
304 ;; Append @refill to appropriate paragraphs for filling.
305 (goto-char (point-min))
306 (texinfo-append-refill)
307 ;; If the region includes the effective end of the data,
308 ;; discard everything after that.
309 (goto-char (point-max))
310 (if (re-search-backward "^@bye" nil t)
311 (delete-region (point) (point-max)))
312 ;; Make sure buffer ends in a newline.
313 (or (= (preceding-char) ?\n)
314 (insert "\n"))
315 ;; Don't use a previous value of texinfo-enclosure-list.
316 (setq texinfo-enclosure-list nil)
317 (setq texinfo-alias-list nil)
318
319 (goto-char (point-min))
320 (if (looking-at "\\\\input[ \t]+texinfo")
321 (delete-region (point) (line-beginning-position 2)))
322
323 ;; Insert Info region title text.
324 (goto-char (point-min))
325 (if (search-forward "@setfilename" (line-beginning-position 101) t)
326 (progn
327 (setq texinfo-command-end (point))
328 (beginning-of-line)
329 (setq texinfo-command-start (point))
330 (let ((arg (texinfo-parse-arg-discard)))
331 (insert " "
332 texinfo-region-buffer-name
333 " buffer for: `")
334 (insert (file-name-nondirectory (expand-file-name arg)))
335 (insert "', -*-Text-*-\n")))
336 ;; Else no `@setfilename' line
337 (insert " "
338 texinfo-region-buffer-name
339 " buffer -*-Text-*-\n"))
340 (insert "produced by `texinfo-format-region'\n"
341 "from a region in: "
342 (if (buffer-file-name input-buffer)
343 (concat "`"
344 (file-name-sans-versions
345 (file-name-nondirectory
346 (buffer-file-name input-buffer)))
347 "'")
348 (concat "buffer `" (buffer-name input-buffer) "'"))
349 "\nusing `texinfmt.el' version "
350 texinfmt-version
351 ".\n\n")
352
353 ;; Now convert for real.
354 (goto-char (point-min))
355 (texinfo-format-scan)
356 (goto-char (point-min))
357 (Info-tagify input-buffer)
358 (goto-char (point-min))
359 (message "Done."))))
360
361 ;;;###autoload
362 (defun texi2info (&optional nosplit)
363 "Convert the current buffer (written in Texinfo code) into an Info file.
364 The Info file output is generated in a buffer visiting the Info file
365 names specified in the @setfilename command.
366
367 This function automatically updates all node pointers and menus, and
368 creates a master menu. This work is done on a temporary buffer that
369 is automatically removed when the Info file is created. The original
370 Texinfo source buffer is not changed.
371
372 Non-nil argument (prefix, if interactive) means don't split the file
373 if large. You can use `Info-split' to do this manually."
374 (interactive "P")
375 (let ((temp-buffer (concat "*--" (buffer-name) "--temporary-buffer*" )))
376 (message "First updating nodes and menus, then creating Info file.")
377 ;; (sit-for 2)
378 (copy-to-buffer temp-buffer (point-min) (point-max))
379 (switch-to-buffer temp-buffer)
380 (texinfo-master-menu t)
381 (message "Now creating Info file.")
382 (sit-for 2)
383 (texinfo-format-buffer nosplit)
384 (save-buffer)
385 (kill-buffer temp-buffer)))
386
387 \f
388 ;;; Primary internal formatting function for the whole buffer.
389
390 (defun texinfo-format-buffer-1 ()
391 (let (texinfo-format-filename
392 texinfo-example-start
393 texinfo-command-start
394 texinfo-command-end
395 texinfo-command-name
396 texinfo-last-node
397 texinfo-last-node-pos
398 texinfo-vindex
399 texinfo-findex
400 texinfo-cindex
401 texinfo-pindex
402 texinfo-tindex
403 texinfo-kindex
404 texinfo-stack
405 texinfo-node-names
406 (texinfo-footnote-number 0)
407 last-input-buffer
408 outfile
409 (fill-column-for-info fill-column)
410 (input-buffer (current-buffer))
411 (input-directory default-directory))
412 (setq texinfo-enclosure-list nil)
413 (setq texinfo-alias-list nil)
414 (save-excursion
415 (goto-char (point-min))
416 (or (search-forward "@setfilename" nil t)
417 (error "Texinfo file needs an `@setfilename FILENAME' line"))
418 (setq texinfo-command-end (point))
419 (setq outfile (texinfo-parse-line-arg)))
420
421 (find-file outfile)
422 (texinfo-mode)
423 (erase-buffer)
424 (buffer-disable-undo)
425
426 (message "Formatting Info file: %s" outfile)
427 (setq texinfo-format-filename
428 (file-name-nondirectory (expand-file-name outfile)))
429
430 (setq fill-column fill-column-for-info)
431 (set-syntax-table texinfo-format-syntax-table)
432
433 (insert-buffer-substring input-buffer)
434 (run-hook-with-args 'texinfo-pre-format-hook input-buffer)
435 (message "Converting %s to Info format..." (buffer-name input-buffer))
436
437 ;; Insert @include files so `texinfo-raise-lower-sections' can
438 ;; work on them without losing track of multiple
439 ;; @raise/@lowersections commands.
440 (goto-char (point-min))
441 (while (re-search-forward "^@include" nil t)
442 (setq texinfo-command-end (point))
443 (let ((filename (concat input-directory
444 (texinfo-parse-line-arg))))
445 (re-search-backward "^@include")
446 (delete-region (point) (line-beginning-position 2))
447 (message "Reading included file: %s" filename)
448 (save-excursion
449 (save-restriction
450 (narrow-to-region
451 (point)
452 (+ (point) (car (cdr (insert-file-contents filename)))))
453 (goto-char (point-min))
454 ;; Remove `@setfilename' line from included file, if any,
455 ;; so @setfilename command not duplicated.
456 (if (re-search-forward "^@setfilename" (line-end-position 100) t)
457 (delete-region (line-beginning-position 1)
458 (line-beginning-position 2)))))))
459 ;; Raise or lower level of each section, if necessary.
460 (goto-char (point-min))
461 (texinfo-raise-lower-sections)
462 ;; Append @refill to appropriate paragraphs
463 (goto-char (point-min))
464 (texinfo-append-refill)
465 (goto-char (point-min))
466 (search-forward "@setfilename")
467 (beginning-of-line)
468 (delete-region (point-min) (point))
469 ;; Remove @bye at end of file, if it is there.
470 (goto-char (point-max))
471 (if (search-backward "@bye" nil t)
472 (delete-region (point) (point-max)))
473 ;; Make sure buffer ends in a newline.
474 (or (= (preceding-char) ?\n)
475 (insert "\n"))
476 ;; Scan the whole buffer, converting to Info format.
477 (texinfo-format-scan)
478 (goto-char (point-min))
479 ;; Insert info about how this file was made.
480 (insert "Info file: "
481 texinfo-format-filename ", -*-Text-*-\n"
482 "produced by `texinfo-format-buffer'\n"
483 ;; Date string removed so that regression testing is easier.
484 ;; "on "
485 ;; (insert (format-time-string "%e %b %Y")) " "
486 "from file"
487 (if (buffer-file-name input-buffer)
488 (concat " `"
489 (file-name-sans-versions
490 (file-name-nondirectory
491 (buffer-file-name input-buffer)))
492 "'")
493 (concat "buffer `" (buffer-name input-buffer) "'"))
494 "\nusing `texinfmt.el' version "
495 texinfmt-version
496 ".\n\n")
497 ;; Return data for indices.
498 (list outfile
499 texinfo-vindex texinfo-findex texinfo-cindex
500 texinfo-pindex texinfo-tindex texinfo-kindex)))
501
502 \f
503 ;;; Perform non-@-command file conversions: quotes and hyphens
504
505 (defun texinfo-format-convert (min max)
506 ;; Convert left and right quotes to typewriter font quotes.
507 (goto-char min)
508 (while (search-forward "``" max t)
509 (replace-match "\""))
510 (goto-char min)
511 (while (search-forward "''" max t)
512 (replace-match "\""))
513 ;; Convert three hyphens in a row to two.
514 (goto-char min)
515 (while (re-search-forward "\\( \\|\\w\\)\\(---\\)\\( \\|\\w\\)" max t)
516 (delete-region (1+ (match-beginning 2)) (+ 2 (match-beginning 2)))))
517
518 \f
519 ;;; Handle paragraph filling
520
521 ;; Keep as concatenated lists for ease of maintenance
522
523 (defvar texinfo-no-refill-regexp
524 (concat
525 "^@"
526 "\\("
527 ;; add "itemize\\|" (from experiment of 2001 Nov 28)
528 ;; because of a problem with @end itemize@refill
529 ;; I don't know if this causes other problems.
530 ;; I suspect itemized lists don't get filled properly and a
531 ;; more precise fix is required. Bob
532 ;; commented out on 2005 Feb 28 by Bob
533 ;; "itemize\\|"
534 "direntry\\|"
535 "lisp\\|"
536 "smalllisp\\|"
537 "example\\|"
538 "smallexample\\|"
539 "display\\|"
540 "smalldisplay\\|"
541 "format\\|"
542 "smallformat\\|"
543 "flushleft\\|"
544 "flushright\\|"
545 "menu\\|"
546 "multitable\\|"
547 "titlepage\\|"
548 "iftex\\|"
549 "ifhtml\\|"
550 "tex\\|"
551 "html"
552 "\\)")
553 "Regexp specifying environments in which paragraphs are not filled.")
554
555 (defvar texinfo-accent-commands
556 (concat
557 "@^\\|"
558 "@`\\|"
559 "@'\\|"
560 "@\"\\|"
561 "@,\\|"
562 "@=\\|"
563 "@~\\|"
564 "@OE{\\|"
565 "@oe{\\|"
566 "@AA{\\|"
567 "@aa{\\|"
568 "@AE{\\|"
569 "@ae{\\|"
570 "@ss{\\|"
571 "@questiondown{\\|"
572 "@exclamdown{\\|"
573 "@L{\\|"
574 "@l{\\|"
575 "@O{\\|"
576 "@o{\\|"
577 "@dotaccent{\\|"
578 "@ubaraccent{\\|"
579 "@d{\\|"
580 "@H{\\|"
581 "@ringaccent{\\|"
582 "@tieaccent{\\|"
583 "@u{\\|"
584 "@v{\\|"
585 "@dotless{"
586 ))
587
588 (defvar texinfo-part-of-para-regexp
589 (concat
590 "^@"
591 "\\("
592 "b{\\|"
593 "bullet{\\|"
594 "cite{\\|"
595 "code{\\|"
596 "email{\\|"
597 "emph{\\|"
598 "equiv{\\|"
599 "error{\\|"
600 "expansion{\\|"
601 "file{\\|"
602 "i{\\|"
603 "inforef{\\|"
604 "kbd{\\|"
605 "key{\\|"
606 "lisp{\\|"
607 "minus{\\|"
608 "point{\\|"
609 "print{\\|"
610 "pxref{\\|"
611 "r{\\|"
612 "ref{\\|"
613 "result{\\|"
614 "samp{\\|"
615 "sc{\\|"
616 "t{\\|"
617 "TeX{\\|"
618 "today{\\|"
619 "url{\\|"
620 "var{\\|"
621 "w{\\|"
622 "xref{\\|"
623 "@-\\|" ; @- is a discretionary hyphen (not an accent) (a noop).
624 texinfo-accent-commands
625 "\\)"
626 )
627 "Regexp specifying @-commands found within paragraphs.")
628
629 (defun texinfo-append-refill ()
630 "Append @refill at end of each paragraph that should be filled.
631 Do not append @refill to paragraphs within @example and similar environments.
632 Do not append @refill to paragraphs containing @w{TEXT} or @*."
633
634 ;; It is necessary to append @refill before other processing because
635 ;; the other processing removes information that tells Texinfo
636 ;; whether the text should or should not be filled.
637
638 (while (< (point) (point-max))
639 (let ((refill-blank-lines "^[ \t\n]*$")
640 (case-fold-search nil)) ; Don't confuse @TeX and @tex....
641 (beginning-of-line)
642 ;; 1. Skip over blank lines;
643 ;; skip over lines beginning with @-commands,
644 ;; but do not skip over lines
645 ;; that are no-refill environments such as @example or
646 ;; that begin with within-paragraph @-commands such as @code.
647 (while (and (looking-at (concat "^@\\|^\\\\\\|" refill-blank-lines))
648 (not (looking-at
649 (concat
650 "\\("
651 texinfo-no-refill-regexp
652 "\\|"
653 texinfo-part-of-para-regexp
654 "\\)")))
655 (< (point) (point-max)))
656 (forward-line 1))
657 ;; 2. Skip over @example and similar no-refill environments.
658 (if (looking-at texinfo-no-refill-regexp)
659 (let ((environment (match-string-no-properties 1)))
660 (progn (re-search-forward (concat "^@end " environment) nil t)
661 (forward-line 1)))
662 ;; Else
663 ;; 3. Do not refill a paragraph containing @w or @*, or ending
664 ;; with @<newline> followed by a newline.
665 (if (or (>= (point) (point-max))
666 (re-search-forward
667 "@w{\\|@\\*\\|@\n\n"
668 (save-excursion (forward-paragraph)
669 (line-beginning-position 2))
670 t))
671 ;; Go to end of paragraph and do nothing.
672 (forward-paragraph)
673 ;; 4. Else go to end of paragraph and insert @refill
674 (forward-paragraph)
675 (forward-line -1)
676 (let ((line-beg (point)))
677 (end-of-line)
678 (delete-region
679 (point)
680 (save-excursion (skip-chars-backward " \t") (point)))
681 (forward-char 1)
682 (unless (re-search-backward "@c[ \t\n]\\|@comment[ \t\n]" line-beg t)
683 (forward-char -1))
684 (unless (re-search-backward "@refill\\|^[ \t]*@" line-beg t)
685 (insert "@refill")))
686 (forward-line 1))))))
687
688 \f
689 ;;; Handle `@raisesections' and `@lowersections' commands
690
691 ;; These commands change the hierarchical level of chapter structuring
692 ;; commands.
693 ;;
694 ;; @raisesections changes @subsection to @section,
695 ;; @section to @chapter,
696 ;; etc.
697 ;;
698 ;; @lowersections changes @chapter to @section
699 ;; @subsection to @subsubsection,
700 ;; etc.
701 ;;
702 ;; An @raisesections/@lowersections command changes only those
703 ;; structuring commands that follow the @raisesections/@lowersections
704 ;; command.
705 ;;
706 ;; Repeated @raisesections/@lowersections continue to raise or lower
707 ;; the heading level.
708 ;;
709 ;; An @lowersections command cancels an @raisesections command, and
710 ;; vice versa.
711 ;;
712 ;; You cannot raise or lower "beyond" chapters or subsubsections, but
713 ;; trying to do so does not elicit an error---you just get more
714 ;; headings that mean the same thing as you keep raising or lowering
715 ;; (for example, after a single @raisesections, both @chapter and
716 ;; @section produce chapter headings).
717
718 (defun texinfo-raise-lower-sections ()
719 "Raise or lower the hierarchical level of chapters, sections, etc.
720
721 This function acts according to `@raisesections' and `@lowersections'
722 commands in the Texinfo file.
723
724 For example, an `@lowersections' command is useful if you wish to
725 include what is written as an outer or standalone Texinfo file in
726 another Texinfo file as an inner, included file. The `@lowersections'
727 command changes chapters to sections, sections to subsections and so
728 on.
729
730 @raisesections changes @subsection to @section,
731 @section to @chapter,
732 @heading to @chapheading,
733 etc.
734
735 @lowersections changes @chapter to @section,
736 @subsection to @subsubsection,
737 @heading to @subheading,
738 etc.
739
740 An `@raisesections' or `@lowersections' command changes only those
741 structuring commands that follow the `@raisesections' or
742 `@lowersections' command.
743
744 An `@lowersections' command cancels an `@raisesections' command, and
745 vice versa.
746
747 Repeated use of the commands continue to raise or lower the hierarchical
748 level a step at a time.
749
750 An attempt to raise above `chapters' reproduces chapter commands; an
751 attempt to lower below subsubsections reproduces subsubsection
752 commands."
753
754 ;; `texinfo-section-types-regexp' is defined in `texnfo-upd.el';
755 ;; it is a regexp matching chapter, section, other headings
756 ;; (but not the top node).
757
758 (let (type (level 0))
759 (while
760 (re-search-forward
761 (concat
762 "\\(\\(^@\\(raise\\|lower\\)sections\\)\\|\\("
763 texinfo-section-types-regexp
764 "\\)\\)")
765 nil t)
766 (beginning-of-line)
767 (save-excursion (setq type (read (current-buffer))))
768 (cond
769
770 ;; 1. Increment level
771 ((eq type '@raisesections)
772 (setq level (1+ level))
773 (delete-region
774 (point) (line-beginning-position 2)))
775
776 ;; 2. Decrement level
777 ((eq type '@lowersections)
778 (setq level (1- level))
779 (delete-region
780 (point) (line-beginning-position 2)))
781
782 ;; Now handle structuring commands
783 ((cond
784
785 ;; 3. Raise level when positive
786 ((> level 0)
787 (let ((count level)
788 (new-level type))
789 (while (> count 0)
790 (setq new-level
791 (cdr (assq new-level texinfo-raisesections-alist)))
792 (setq count (1- count)))
793 (kill-word 1)
794 (insert (symbol-name new-level))))
795
796 ;; 4. Do nothing except move point when level is zero
797 ((= level 0) (forward-line 1))
798
799 ;; 5. Lower level when positive
800 ((< level 0)
801 (let ((count level)
802 (new-level type))
803 (while (< count 0)
804 (setq new-level
805 (cdr (assq new-level texinfo-lowersections-alist)))
806 (setq count (1+ count)))
807 (kill-word 1)
808 (insert (symbol-name new-level))))))))))
809 \f
810 ;;; Perform those texinfo-to-info conversions that apply to the whole input
811 ;;; uniformly.
812
813 (defun texinfo-format-scan ()
814 (texinfo-format-convert (point-min) (point-max))
815 ;; Search for @copying, which has to be first since the
816 ;; @insertcopying command then inserts the text elsewhere.
817 (goto-char (point-min))
818 (when (search-forward "@copying" nil t)
819 (texinfo-copying))
820 (while (search-forward "@insertcopying" nil t)
821 (delete-region (match-beginning 0) (match-end 0))
822
823 (texinfo-insertcopying))
824 ;; Scan for other @-commands.
825 (goto-char (point-min))
826 (while (search-forward "@" nil t)
827 ;;
828 ;; These are the single-character accent commands: @^ @` @' @" @= @~
829 ;; In Info, they are simply quoted and the @ deleted.
830 ;; Other single-character commands:
831 ;; @* forces a line break,
832 ;; @- is a discretionary hyphenation point; does nothing in Info.
833 ;; @<space>, @<tab>, @<newline> each produce a single space,
834 ;; unless followed by a newline.
835 ;;
836 ;; Old version 2.34 expression: (looking-at "[@{}^'` *\"?!]")
837 (if (looking-at "[@{}^'`\"=~ \t\n*?!-]")
838 ;; @*, causes a line break.
839 (cond
840 ;; @*, a line break
841 ((= (following-char) ?*)
842 ;; remove command
843 (delete-region (1- (point)) (1+ (point)))
844 ;; insert return if not at end of line;
845 ;; else line is already broken.
846 (if (not (= (following-char) ?\n))
847 (insert ?\n)))
848 ;; @-, deleted
849 ((= (following-char) ?-)
850 (delete-region (1- (point)) (1+ (point))))
851 ;; @<space>, @<tab>, @<newline>: produce a single space,
852 ;; unless followed by a newline.
853 ((= (following-char) ? )
854 (delete-region (1- (point)) (1+ (point)))
855 ;; insert single space if not at end of line;
856 ;; else line is already broken.
857 (if (not (= (following-char) ?\n))
858 (insert ? )))
859 ((= (following-char) ?\t)
860 (delete-region (1- (point)) (1+ (point)))
861 ;; insert single space if not at end of line;
862 ;; else line is already broken.
863 (if (not (= (following-char) ?\n))
864 (insert ? )))
865 ;; following char is a carriage return
866 ((= (following-char) ?\n)
867 ;; remove command
868 (delete-region (1- (point)) (1+ (point)))
869 ;; insert single space if not at end of line;
870 ;; else line is already broken.
871 (if (not (= (following-char) ?\n))
872 (insert ? )))
873 ;; Otherwise: the other characters are simply quoted. Delete the @.
874 (t
875 (delete-char -1)
876 ;; Be compatible with makeinfo: if @' and its ilk are
877 ;; followed by a @ without a brace, barf.
878 (if (looking-at "[\"'^`~=]")
879 (progn
880 (if (= (char-after (1+ (point))) ?@)
881 (error "Use braces to give a command as an argument to @%c"
882 (following-char)))
883 (forward-char 1)
884 ;; @' etc. can optionally accept their argument in
885 ;; braces (makeinfo supports that).
886 (when (looking-at "{")
887 (let ((start (point)))
888 (forward-list 1)
889 (delete-char -1)
890 (goto-char start)
891 (delete-char 1))))
892 (forward-char 1))))
893 ;; @ is followed by a command-word; find the end of the word.
894 (setq texinfo-command-start (1- (point)))
895 (if (= (char-syntax (following-char)) ?w)
896 (forward-word 1)
897 (forward-char 1))
898 (setq texinfo-command-end (point))
899 ;; Detect the case of two @-commands in a row;
900 ;; process just the first one.
901 (goto-char (1+ texinfo-command-start))
902 (skip-chars-forward "^@" texinfo-command-end)
903 (setq texinfo-command-end (point))
904 ;; Handle let aliasing
905 (setq texinfo-command-name
906 (let (trial
907 (cmdname
908 (buffer-substring-no-properties
909 (1+ texinfo-command-start) texinfo-command-end)))
910 (while (setq trial (assoc cmdname texinfo-alias-list))
911 (setq cmdname (cdr trial)))
912 (intern cmdname)))
913 ;; Call the handler for this command.
914 (let ((enclosure-type
915 (assoc
916 (symbol-name texinfo-command-name)
917 texinfo-enclosure-list)))
918 (if enclosure-type
919 (progn
920 (insert
921 (car (car (cdr enclosure-type)))
922 (texinfo-parse-arg-discard)
923 (car (cdr (car (cdr enclosure-type)))))
924 (goto-char texinfo-command-start))
925 (let ((cmd (get texinfo-command-name 'texinfo-format)))
926 (if cmd (funcall cmd) (texinfo-unsupported)))))))
927
928 (cond (texinfo-stack
929 (goto-char (nth 2 (car texinfo-stack)))
930 (error "Unterminated @%s" (car (car texinfo-stack)))))
931
932 ;; Remove excess whitespace
933 (let ((whitespace-silent t))
934 (whitespace-cleanup)))
935
936 (defvar texinfo-copying-text ""
937 "Text of the copyright notice and copying permissions.")
938
939 (defun texinfo-copying ()
940 "Copy the copyright notice and copying permissions from the Texinfo file,
941 as indicated by the @copying ... @end copying command;
942 insert the text with the @insertcopying command."
943 (let ((beg (progn (beginning-of-line) (point)))
944 (end (progn (re-search-forward "^@end copying[ \t]*\n") (point))))
945 (setq texinfo-copying-text
946 (buffer-substring-no-properties
947 (save-excursion (goto-char beg) (line-beginning-position 2))
948 (save-excursion (goto-char end) (line-beginning-position 0))))
949 (delete-region beg end)))
950
951 (defun texinfo-insertcopying ()
952 "Insert the copyright notice and copying permissions from the Texinfo file,
953 which are indicated by the @copying ... @end copying command."
954 (insert (concat "\n" texinfo-copying-text)))
955
956 (put 'begin 'texinfo-format 'texinfo-format-begin)
957 (defun texinfo-format-begin ()
958 (texinfo-format-begin-end 'texinfo-format))
959
960 (put 'end 'texinfo-format 'texinfo-format-end)
961 (defun texinfo-format-end ()
962 (texinfo-format-begin-end 'texinfo-end))
963
964 (defun texinfo-format-begin-end (prop)
965 (setq texinfo-command-name (intern (texinfo-parse-line-arg)))
966 (let ((cmd (get texinfo-command-name prop)))
967 (if cmd (funcall cmd)
968 (texinfo-unsupported))))
969 \f
970 ;;; Parsing functions
971
972 (defun texinfo-parse-line-arg ()
973 "Return argument of @-command as string.
974 Argument is separated from command either by a space or by a brace.
975 If a space, return rest of line, with beginning and ending white
976 space removed. If a brace, return string between braces.
977 Leave point after argument."
978 (goto-char texinfo-command-end)
979 (let ((start (point)))
980 (cond ((looking-at " ")
981 (skip-chars-forward " ")
982 (setq start (point))
983 (end-of-line)
984 (skip-chars-backward " ")
985 (delete-region (point) (progn (end-of-line) (point)))
986 (setq texinfo-command-end (1+ (point))))
987 ((looking-at "{")
988 (setq start (1+ (point)))
989 (forward-list 1)
990 (setq texinfo-command-end (point))
991 (forward-char -1))
992 (t
993 (error "Invalid texinfo command arg format")))
994 (prog1 (buffer-substring-no-properties start (point))
995 (if (eolp) (forward-char 1)))))
996
997 (defun texinfo-parse-expanded-arg ()
998 (goto-char texinfo-command-end)
999 (let ((start (point))
1000 marker)
1001 (cond ((looking-at " ")
1002 (skip-chars-forward " ")
1003 (setq start (point))
1004 (end-of-line)
1005 (setq texinfo-command-end (1+ (point))))
1006 ((looking-at "{")
1007 (setq start (1+ (point)))
1008 (forward-list 1)
1009 (setq texinfo-command-end (point))
1010 (forward-char -1))
1011 (t
1012 (error "Invalid texinfo command arg format")))
1013 (setq marker (move-marker (make-marker) texinfo-command-end))
1014 (texinfo-format-expand-region start (point))
1015 (setq texinfo-command-end (marker-position marker))
1016 (move-marker marker nil)
1017 (prog1 (buffer-substring-no-properties start (point))
1018 (if (eolp) (forward-char 1)))))
1019
1020 (defun texinfo-format-expand-region (start end)
1021 (save-restriction
1022 (narrow-to-region start end)
1023 (let (texinfo-command-start
1024 texinfo-command-end
1025 texinfo-command-name
1026 texinfo-stack)
1027 (texinfo-format-scan))
1028 (goto-char (point-max))))
1029
1030 (defun texinfo-parse-arg-discard ()
1031 "Delete command and argument; return argument of command."
1032 (prog1 (texinfo-parse-line-arg)
1033 (texinfo-discard-command)))
1034
1035 (defun texinfo-discard-command ()
1036 (delete-region texinfo-command-start texinfo-command-end))
1037
1038 (defun texinfo-optional-braces-discard ()
1039 "Discard braces following command, if any."
1040 (goto-char texinfo-command-end)
1041 (let ((start (point)))
1042 (cond ((looking-at "[ \t]*\n")) ; do nothing
1043 ((looking-at "{") ; remove braces, if any
1044 (forward-list 1)
1045 (setq texinfo-command-end (point)))
1046 (t
1047 (error
1048 "Invalid `texinfo-optional-braces-discard' format \(need braces?\)")))
1049 (delete-region texinfo-command-start texinfo-command-end)))
1050
1051 (defun texinfo-format-parse-line-args ()
1052 (let ((start (1- (point)))
1053 next beg end
1054 args)
1055 (skip-chars-forward " ")
1056 (while (not (eolp))
1057 (setq beg (point))
1058 (re-search-forward "[\n,]")
1059 (setq next (point))
1060 (if (bolp) (setq next (1- next)))
1061 (forward-char -1)
1062 (skip-chars-backward " ")
1063 (setq end (point))
1064 (push (if (> end beg) (buffer-substring-no-properties beg end))
1065 args)
1066 (goto-char next)
1067 (skip-chars-forward " "))
1068 (if (eolp) (forward-char 1))
1069 (setq texinfo-command-end (point))
1070 (nreverse args)))
1071
1072 (defun texinfo-format-parse-args ()
1073 (let ((start (1- (point)))
1074 next beg end
1075 args)
1076 (search-forward "{")
1077 (save-excursion
1078 (texinfo-format-expand-region
1079 (point)
1080 (save-excursion (up-list 1) (1- (point)))))
1081 ;; The following does not handle cross references of the form:
1082 ;; `@xref{bullet, , @code{@@bullet}@{@}}.' because the
1083 ;; re-search-forward finds the first right brace after the second
1084 ;; comma.
1085 (while (/= (preceding-char) ?\})
1086 (skip-chars-forward " \t\n")
1087 (setq beg (point))
1088 (re-search-forward "[},]")
1089 (setq next (point))
1090 (forward-char -1)
1091 (skip-chars-backward " \t\n")
1092 (setq end (point))
1093 (cond ((< beg end)
1094 (goto-char beg)
1095 (while (search-forward "\n" end t)
1096 (replace-match " "))))
1097 (push (if (> end beg) (buffer-substring-no-properties beg end))
1098 args)
1099 (goto-char next))
1100 ;;(if (eolp) (forward-char 1))
1101 (setq texinfo-command-end (point))
1102 (nreverse args)))
1103
1104 (defun texinfo-format-parse-defun-args ()
1105 (goto-char texinfo-command-end)
1106 (let ((start (point)))
1107 (end-of-line)
1108 (setq texinfo-command-end (1+ (point)))
1109 (let ((marker (move-marker (make-marker) texinfo-command-end)))
1110 (texinfo-format-expand-region start (point))
1111 (setq texinfo-command-end (marker-position marker))
1112 (move-marker marker nil))
1113 (goto-char start)
1114 (let ((args '())
1115 beg end)
1116 (skip-chars-forward " ")
1117 (while (not (eolp))
1118 (cond ((looking-at "{")
1119 (setq beg (1+ (point)))
1120 (forward-list 1)
1121 (setq end (1- (point))))
1122 (t
1123 (setq beg (point))
1124 (re-search-forward "[\n ]")
1125 (forward-char -1)
1126 (setq end (point))))
1127 (push (buffer-substring-no-properties beg end) args)
1128 (skip-chars-forward " "))
1129 (forward-char 1)
1130 (nreverse args))))
1131
1132 (defun texinfo-discard-line ()
1133 (goto-char texinfo-command-end)
1134 (skip-chars-forward " \t")
1135 (or (eolp)
1136 (error "Extraneous text at end of command line"))
1137 (goto-char texinfo-command-start)
1138 (or (bolp)
1139 (error "Extraneous text at beginning of command line"))
1140 (delete-region (point) (progn (forward-line 1) (point))))
1141
1142 (defun texinfo-discard-line-with-args ()
1143 (goto-char texinfo-command-start)
1144 (delete-region (point) (progn (forward-line 1) (point))))
1145
1146 \f
1147 ;;; @setfilename
1148
1149 ;; Only `texinfo-format-buffer' handles @setfilename with this
1150 ;; definition; `texinfo-format-region' handles @setfilename, if any,
1151 ;; specially.
1152 (put 'setfilename 'texinfo-format 'texinfo-format-setfilename)
1153 (defun texinfo-format-setfilename ()
1154 (texinfo-parse-arg-discard))
1155 \f
1156 ;;; @node, @menu, @detailmenu
1157
1158 (put 'node 'texinfo-format 'texinfo-format-node)
1159 (put 'nwnode 'texinfo-format 'texinfo-format-node)
1160 (defun texinfo-format-node ()
1161 (let* ((args (texinfo-format-parse-line-args))
1162 (name (nth 0 args))
1163 (next (nth 1 args))
1164 (prev (nth 2 args))
1165 (up (nth 3 args)))
1166 (texinfo-discard-command)
1167 (setq texinfo-last-node name)
1168 (let ((tem (if texinfo-fold-nodename-case (downcase name) name)))
1169 (if (assoc tem texinfo-node-names)
1170 (error "Duplicate node name: %s" name)
1171 (push (list tem) texinfo-node-names)))
1172 (setq texinfo-footnote-number 0)
1173 ;; insert "\n\^_" unconditionally since this is what info is looking for
1174 (insert "\n\^_\nFile: " texinfo-format-filename
1175 ", Node: " name)
1176 (if next
1177 (insert ", Next: " next))
1178 (if prev
1179 (insert ", Prev: " prev))
1180 (if up
1181 (insert ", Up: " up))
1182 (insert ?\n)
1183 (setq texinfo-last-node-pos (point))))
1184
1185 (put 'anchor 'texinfo-format 'texinfo-anchor)
1186 (defun texinfo-anchor ()
1187 (let (anchor-string
1188 (here (- (point) 7)) ; save location of beginning of `@anchor'
1189 (arg (texinfo-parse-arg-discard)))
1190 (if (looking-at " ") ; since a space may be left after -discard
1191 (delete-char 1))
1192 (forward-paragraph)
1193 (let ((end (point)))
1194 (if (save-excursion
1195 (backward-word 1)
1196 (search-forward "@refill" end t))
1197 (setq anchor-string "@anchor-yes-refill")
1198 (setq anchor-string "@anchor-no-refill")))
1199 (goto-char here)
1200 (insert anchor-string "{" arg "}")))
1201
1202 (put 'menu 'texinfo-format 'texinfo-format-menu)
1203 (defun texinfo-format-menu ()
1204 (texinfo-discard-line)
1205 (insert "* Menu:\n\n"))
1206
1207 (put 'menu 'texinfo-end 'texinfo-discard-command)
1208
1209 ;; The @detailmenu should be removed eventually.
1210
1211 ;; According to Karl Berry, 31 August 1996:
1212 ;;
1213 ;; You don't like, I don't like it. I agree, it would be better just to
1214 ;; fix the bug [in `makeinfo']. .. At this point, since inserting those
1215 ;; two commands in the Elisp fn is trivial, I don't especially want to
1216 ;; expend more effort...
1217 ;;
1218 ;; I added a couple sentences of documentation to the manual (putting the
1219 ;; blame on makeinfo where it belongs :-().
1220
1221 (put 'detailmenu 'texinfo-format 'texinfo-discard-line)
1222 (put 'detailmenu 'texinfo-end 'texinfo-discard-command)
1223
1224 ;; (Also see `texnfo-upd.el')
1225
1226 \f
1227 ;;; Cross references
1228
1229 ;; @xref {NODE, FNAME, NAME, FILE, DOCUMENT}
1230 ;; -> *Note FNAME: (FILE)NODE
1231 ;; If FILE is missing,
1232 ;; *Note FNAME: NODE
1233 ;; If FNAME is empty and NAME is present
1234 ;; *Note NAME: Node
1235 ;; If both NAME and FNAME are missing
1236 ;; *Note NODE::
1237 ;; texinfo ignores the DOCUMENT argument.
1238 ;; -> See section <xref to NODE> [NAME, else NODE], page <xref to NODE>
1239 ;; If FILE is specified, (FILE)NODE is used for xrefs.
1240 ;; If fifth argument DOCUMENT is specified, produces
1241 ;; See section <xref to NODE> [NAME, else NODE], page <xref to NODE>
1242 ;; of DOCUMENT
1243
1244 ;; @ref a reference that does not put `See' or `see' in
1245 ;; the hardcopy and is the same as @xref in Info
1246 (put 'ref 'texinfo-format 'texinfo-format-xref)
1247
1248 (put 'xref 'texinfo-format 'texinfo-format-xref)
1249 (defun texinfo-format-xref ()
1250 (let ((args (texinfo-format-parse-args)))
1251 (texinfo-discard-command)
1252 (insert "*Note ")
1253 (let ((fname (or (nth 1 args) (nth 2 args))))
1254 (if (null (or fname (nth 3 args)))
1255 (insert (car args) "::")
1256 (insert (or fname (car args)) ": ")
1257 (if (nth 3 args)
1258 (insert "(" (nth 3 args) ")"))
1259 (and (car args) (insert (car args)))))))
1260
1261 (put 'pxref 'texinfo-format 'texinfo-format-pxref)
1262 (defun texinfo-format-pxref ()
1263 (texinfo-format-xref)
1264 (or (save-excursion
1265 (forward-char -2)
1266 (looking-at "::"))
1267 (insert ".")))
1268
1269 ;; @inforef{NODE, FNAME, FILE}
1270 ;; Like @xref{NODE, FNAME,,FILE} in texinfo.
1271 ;; In Tex, generates "See Info file FILE, node NODE"
1272 (put 'inforef 'texinfo-format 'texinfo-format-inforef)
1273 (defun texinfo-format-inforef ()
1274 (let ((args (texinfo-format-parse-args)))
1275 (texinfo-discard-command)
1276 (if (nth 1 args)
1277 (insert "*Note " (nth 1 args) ": (" (nth 2 args) ")" (car args))
1278 (insert "*Note " "(" (nth 2 args) ")" (car args) "::"))))
1279
1280 \f
1281 ;;; URL Reference: @uref
1282
1283 ;; @uref produces a reference to a uniform resource locator (URL).
1284 ;; It takes one mandatory argument, the URL, and one optional argument,
1285 ;; the text to display (the default is the URL itself).
1286
1287 (put 'uref 'texinfo-format 'texinfo-format-uref)
1288 (defun texinfo-format-uref ()
1289 "Format URL and optional URL-TITLE.
1290 Insert ` ... ' around URL if no URL-TITLE argument;
1291 otherwise, insert URL-TITLE followed by URL in parentheses."
1292 (let ((args (texinfo-format-parse-args)))
1293 (texinfo-discard-command)
1294 ;; if url-title
1295 (if (nth 1 args)
1296 (insert (nth 1 args) " (" (nth 0 args) ")")
1297 (insert "`" (nth 0 args) "'"))
1298 (goto-char texinfo-command-start)))
1299
1300 \f
1301 ;;; Section headings
1302
1303 (put 'majorheading 'texinfo-format 'texinfo-format-chapter)
1304 (put 'chapheading 'texinfo-format 'texinfo-format-chapter)
1305 (put 'ichapter 'texinfo-format 'texinfo-format-chapter)
1306 (put 'chapter 'texinfo-format 'texinfo-format-chapter)
1307 (put 'iappendix 'texinfo-format 'texinfo-format-chapter)
1308 (put 'appendix 'texinfo-format 'texinfo-format-chapter)
1309 (put 'iunnumbered 'texinfo-format 'texinfo-format-chapter)
1310 (put 'top 'texinfo-format 'texinfo-format-chapter)
1311 (put 'unnumbered 'texinfo-format 'texinfo-format-chapter)
1312 (put 'centerchap 'texinfo-format 'texinfo-format-chapter)
1313 (defun texinfo-format-chapter ()
1314 (texinfo-format-chapter-1 ?*))
1315
1316 (put 'heading 'texinfo-format 'texinfo-format-section)
1317 (put 'isection 'texinfo-format 'texinfo-format-section)
1318 (put 'section 'texinfo-format 'texinfo-format-section)
1319 (put 'iappendixsection 'texinfo-format 'texinfo-format-section)
1320 (put 'appendixsection 'texinfo-format 'texinfo-format-section)
1321 (put 'iappendixsec 'texinfo-format 'texinfo-format-section)
1322 (put 'appendixsec 'texinfo-format 'texinfo-format-section)
1323 (put 'iunnumberedsec 'texinfo-format 'texinfo-format-section)
1324 (put 'unnumberedsec 'texinfo-format 'texinfo-format-section)
1325 (defun texinfo-format-section ()
1326 (texinfo-format-chapter-1 ?=))
1327
1328 (put 'subheading 'texinfo-format 'texinfo-format-subsection)
1329 (put 'isubsection 'texinfo-format 'texinfo-format-subsection)
1330 (put 'subsection 'texinfo-format 'texinfo-format-subsection)
1331 (put 'iappendixsubsec 'texinfo-format 'texinfo-format-subsection)
1332 (put 'appendixsubsec 'texinfo-format 'texinfo-format-subsection)
1333 (put 'iunnumberedsubsec 'texinfo-format 'texinfo-format-subsection)
1334 (put 'unnumberedsubsec 'texinfo-format 'texinfo-format-subsection)
1335 (defun texinfo-format-subsection ()
1336 (texinfo-format-chapter-1 ?-))
1337
1338 (put 'subsubheading 'texinfo-format 'texinfo-format-subsubsection)
1339 (put 'isubsubsection 'texinfo-format 'texinfo-format-subsubsection)
1340 (put 'subsubsection 'texinfo-format 'texinfo-format-subsubsection)
1341 (put 'iappendixsubsubsec 'texinfo-format 'texinfo-format-subsubsection)
1342 (put 'appendixsubsubsec 'texinfo-format 'texinfo-format-subsubsection)
1343 (put 'iunnumberedsubsubsec 'texinfo-format 'texinfo-format-subsubsection)
1344 (put 'unnumberedsubsubsec 'texinfo-format 'texinfo-format-subsubsection)
1345 (defun texinfo-format-subsubsection ()
1346 (texinfo-format-chapter-1 ?.))
1347
1348 (defun texinfo-format-chapter-1 (belowchar)
1349 (let ((arg (texinfo-parse-arg-discard)))
1350 (message "Formatting: %s ... " arg) ; So we can see where we are.
1351 (insert ?\n arg ?\n "@SectionPAD " belowchar ?\n)
1352 (forward-line -2)))
1353
1354 (put 'SectionPAD 'texinfo-format 'texinfo-format-sectionpad)
1355 (defun texinfo-format-sectionpad ()
1356 (let ((str (texinfo-parse-arg-discard)))
1357 (forward-char -1)
1358 (let ((column (current-column)))
1359 (forward-char 1)
1360 (while (> column 0)
1361 (insert str)
1362 (setq column (1- column))))
1363 (insert ?\n)))
1364
1365 \f
1366 ;;; Space controlling commands: @. and @:, and the soft hyphen.
1367
1368 (put '\. 'texinfo-format 'texinfo-format-\.)
1369 (defun texinfo-format-\. ()
1370 (texinfo-discard-command)
1371 (insert "."))
1372
1373 (put '\: 'texinfo-format 'texinfo-format-\:)
1374 (defun texinfo-format-\: ()
1375 (texinfo-discard-command))
1376
1377 (put '\- 'texinfo-format 'texinfo-format-soft-hyphen)
1378 (defun texinfo-format-soft-hyphen ()
1379 (texinfo-discard-command))
1380
1381 \f
1382 ;;; @kbdinputstyle, @vskip, headings & footings
1383 ;; These commands for not for Info and should never
1384 ;; appear in an Info environment; but if they do,
1385 ;; this causes them to be discarded.
1386
1387 ;; @kbdinputstyle
1388 (put 'kbdinputstyle 'texinfo-format 'texinfo-discard-line-with-args)
1389
1390 ;; @vskip
1391 (put 'vskip 'texinfo-format 'texinfo-discard-line-with-args)
1392
1393 ;; headings & footings
1394 (put 'evenfooting 'texinfo-format 'texinfo-discard-line-with-args)
1395 (put 'evenheading 'texinfo-format 'texinfo-discard-line-with-args)
1396 (put 'oddfooting 'texinfo-format 'texinfo-discard-line-with-args)
1397 (put 'oddheading 'texinfo-format 'texinfo-discard-line-with-args)
1398 (put 'everyfooting 'texinfo-format 'texinfo-discard-line-with-args)
1399 (put 'everyheading 'texinfo-format 'texinfo-discard-line-with-args)
1400
1401 \f
1402 ;;; @documentdescription ... @end documentdescription
1403 ;; This command is for HTML output and should never
1404 ;; appear in an Info environment; but if it does,
1405 ;; this causes it to be discarded.
1406
1407 (put 'documentdescription 'texinfo-format 'texinfo-format-documentdescription)
1408 (defun texinfo-format-documentdescription ()
1409 (delete-region texinfo-command-start
1410 (progn (re-search-forward "^@end documentdescription[ \t]*\n")
1411 (point))))
1412
1413
1414 \f
1415 ;;; @center, @sp, and @br
1416
1417 (put 'center 'texinfo-format 'texinfo-format-center)
1418 (defun texinfo-format-center ()
1419 (let ((arg (texinfo-parse-expanded-arg)))
1420 (texinfo-discard-command)
1421 (insert arg)
1422 (insert ?\n)
1423 (save-restriction
1424 (goto-char (1- (point)))
1425 (let ((indent-tabs-mode nil))
1426 (center-line)))))
1427
1428 (put 'sp 'texinfo-format 'texinfo-format-sp)
1429 (defun texinfo-format-sp ()
1430 (let* ((arg (texinfo-parse-arg-discard))
1431 (num (read arg)))
1432 (insert-char ?\n num)))
1433
1434 (put 'br 'texinfo-format 'texinfo-format-paragraph-break)
1435 (defun texinfo-format-paragraph-break ()
1436 "Force a paragraph break.
1437 If used within a line, follow `@br' with braces."
1438 (texinfo-optional-braces-discard)
1439 ;; insert one return if at end of line;
1440 ;; else insert two returns, to generate a blank line.
1441 (if (= (following-char) ?\n)
1442 (insert ?\n)
1443 (insert-char ?\n 2)))
1444
1445 \f
1446 ;;; @footnote and @footnotestyle
1447
1448 ;; In Texinfo, footnotes are created with the `@footnote' command.
1449 ;; This command is followed immediately by a left brace, then by the text of
1450 ;; the footnote, and then by a terminating right brace. The
1451 ;; template for a footnote is:
1452 ;;
1453 ;; @footnote{TEXT}
1454 ;;
1455 ;; Info has two footnote styles:
1456 ;;
1457 ;; * In the End of node style, all the footnotes for a single node
1458 ;; are placed at the end of that node. The footnotes are
1459 ;; separated from the rest of the node by a line of dashes with
1460 ;; the word `Footnotes' within it.
1461 ;;
1462 ;; * In the Separate node style, all the footnotes for a single node
1463 ;; are placed in an automatically constructed node of their own.
1464
1465 ;; Footnote style is specified by the @footnotestyle command, either
1466 ;; @footnotestyle separate
1467 ;; or
1468 ;; @footnotestyle end
1469 ;;
1470 ;; The default is separate
1471
1472 (defvar texinfo-footnote-style "separate"
1473 "Footnote style, either separate or end.")
1474
1475 (put 'footnotestyle 'texinfo-format 'texinfo-footnotestyle)
1476 (defun texinfo-footnotestyle ()
1477 "Specify whether footnotes are at end of node or in separate nodes.
1478 Argument is either end or separate."
1479 (setq texinfo-footnote-style (texinfo-parse-arg-discard)))
1480
1481 (put 'footnote 'texinfo-format 'texinfo-format-footnote)
1482 (defun texinfo-format-footnote ()
1483 "Format a footnote in either end of node or separate node style.
1484 The texinfo-footnote-style variable controls which style is used."
1485 (setq texinfo-footnote-number (1+ texinfo-footnote-number))
1486 (cond ((string= texinfo-footnote-style "end")
1487 (texinfo-format-end-node))
1488 ((string= texinfo-footnote-style "separate")
1489 (texinfo-format-separate-node))))
1490
1491 (defun texinfo-format-separate-node ()
1492 "Format footnote in Separate node style, with notes in own node.
1493 The node is constructed automatically."
1494 (let* (start
1495 (arg (texinfo-parse-line-arg))
1496 (node-name-beginning
1497 (save-excursion
1498 (re-search-backward
1499 "^File: \\w+\\(\\w\\|\\s_\\|\\.\\|,\\)*[ \t]+Node:")
1500 (match-end 0)))
1501 (node-name
1502 (save-excursion
1503 (buffer-substring-no-properties
1504 (progn (goto-char node-name-beginning) ; skip over node command
1505 (skip-chars-forward " \t") ; and over spaces
1506 (point))
1507 (if (search-forward "," (line-end-position) t) ; bound search
1508 (1- (point))
1509 (end-of-line) (point))))))
1510 (texinfo-discard-command) ; remove or insert whitespace, as needed
1511 (delete-region (save-excursion (skip-chars-backward " \t\n") (point))
1512 (point))
1513 (insert (format " (%d) (*Note %s-Footnotes::)"
1514 texinfo-footnote-number node-name))
1515 (fill-paragraph nil)
1516 (save-excursion
1517 (if (re-search-forward "^@node" nil 'move)
1518 (forward-line -1))
1519
1520 ;; two cases: for the first footnote, we must insert a node header;
1521 ;; for the second and subsequent footnotes, we need only insert
1522 ;; the text of the footnote.
1523
1524 (if (save-excursion
1525 (search-backward
1526 (concat node-name "-Footnotes, Up: ")
1527 node-name-beginning
1528 t))
1529 (progn ; already at least one footnote
1530 (setq start (point))
1531 (insert (format "\n(%d) %s\n" texinfo-footnote-number arg))
1532 (fill-region start (point)))
1533 ;; else not yet a footnote
1534 (insert "\n\^_\nFile: " texinfo-format-filename
1535 " Node: " node-name "-Footnotes, Up: " node-name "\n")
1536 (setq start (point))
1537 (insert (format "\n(%d) %s\n" texinfo-footnote-number arg))
1538 (narrow-to-region (save-excursion (goto-char start) (point)) (point))
1539 (fill-region (point-min) (point-max))
1540 (widen)))))
1541
1542 (defun texinfo-format-end-node ()
1543 "Format footnote in the End of node style, with notes at end of node."
1544 (let (start
1545 (arg (texinfo-parse-line-arg)))
1546 (texinfo-discard-command) ; remove or insert whitespace, as needed
1547 (delete-region (save-excursion (skip-chars-backward " \t\n") (point))
1548 (point))
1549 (insert (format " (%d) " texinfo-footnote-number))
1550 (fill-paragraph nil)
1551 (save-excursion
1552 (if (search-forward "\n--------- Footnotes ---------\n" nil t)
1553 (progn ; already have footnote, put new one before end of node
1554 (if (re-search-forward "^@node" nil 'move)
1555 (forward-line -1))
1556 (setq start (point))
1557 (insert (format "\n(%d) %s\n" texinfo-footnote-number arg))
1558 (fill-region start (point)))
1559 ;; else no prior footnote
1560 (if (re-search-forward "^@node" nil 'move)
1561 (forward-line -1))
1562 (insert "\n--------- Footnotes ---------\n")
1563 (setq start (point))
1564 (insert (format "\n(%d) %s\n" texinfo-footnote-number arg))))))
1565
1566 \f
1567 ;;; @itemize, @enumerate, and similar commands
1568
1569 ;; @itemize pushes (itemize "COMMANDS" STARTPOS) on texinfo-stack.
1570 ;; @enumerate pushes (enumerate 0 STARTPOS).
1571 ;; @item dispatches to the texinfo-item prop of the first elt of the list.
1572 ;; For itemize, this puts in and rescans the COMMANDS.
1573 ;; For enumerate, this increments the number and puts it in.
1574 ;; In either case, it puts a Backspace at the front of the line
1575 ;; which marks it not to be indented later.
1576 ;; All other lines get indented by 5 when the @end is reached.
1577
1578 (defvar texinfo-stack-depth 0
1579 "Count of number of unpopped texinfo-push-stack calls.
1580 Used by @refill indenting command to avoid indenting within lists, etc.")
1581
1582 (defun texinfo-push-stack (check arg)
1583 (setq texinfo-stack-depth (1+ texinfo-stack-depth))
1584 (push (list check arg texinfo-command-start)
1585 texinfo-stack))
1586
1587 (defun texinfo-pop-stack (check)
1588 (setq texinfo-stack-depth (1- texinfo-stack-depth))
1589 (if (null texinfo-stack)
1590 (error "Unmatched @end %s" check))
1591 (if (not (eq (car (car texinfo-stack)) check))
1592 (error "@end %s matches @%s"
1593 check (car (car texinfo-stack))))
1594 (prog1 (cdr (car texinfo-stack))
1595 (setq texinfo-stack (cdr texinfo-stack))))
1596
1597 (put 'itemize 'texinfo-format 'texinfo-itemize)
1598 (defun texinfo-itemize ()
1599 (texinfo-push-stack
1600 'itemize
1601 (progn (skip-chars-forward " \t")
1602 (if (eolp)
1603 "@bullet"
1604 (texinfo-parse-line-arg))))
1605 (texinfo-discard-line-with-args)
1606 (setq fill-column (- fill-column 5)))
1607
1608 (put 'itemize 'texinfo-end 'texinfo-end-itemize)
1609 (defun texinfo-end-itemize ()
1610 (setq fill-column (+ fill-column 5))
1611 (texinfo-discard-command)
1612 (let ((stacktop
1613 (texinfo-pop-stack 'itemize)))
1614 (texinfo-do-itemize (nth 1 stacktop))))
1615
1616 (put 'enumerate 'texinfo-format 'texinfo-enumerate)
1617 (defun texinfo-enumerate ()
1618 (texinfo-push-stack
1619 'enumerate
1620 (progn (skip-chars-forward " \t")
1621 (if (eolp)
1622 1
1623 (read (current-buffer)))))
1624 (if (and (symbolp (car (cdr (car texinfo-stack))))
1625 (> 1 (length (symbol-name (car (cdr (car texinfo-stack)))))))
1626 (error
1627 "@enumerate: Use a number or letter, eg: 1, A, a, 3, B, or d." ))
1628 (texinfo-discard-line-with-args)
1629 (setq fill-column (- fill-column 5)))
1630
1631 (put 'enumerate 'texinfo-end 'texinfo-end-enumerate)
1632 (defun texinfo-end-enumerate ()
1633 (setq fill-column (+ fill-column 5))
1634 (texinfo-discard-command)
1635 (let ((stacktop
1636 (texinfo-pop-stack 'enumerate)))
1637 (texinfo-do-itemize (nth 1 stacktop))))
1638
1639 ;; @alphaenumerate never became a standard part of Texinfo
1640 (put 'alphaenumerate 'texinfo-format 'texinfo-alphaenumerate)
1641 (defun texinfo-alphaenumerate ()
1642 (texinfo-push-stack 'alphaenumerate (1- ?a))
1643 (setq fill-column (- fill-column 5))
1644 (texinfo-discard-line))
1645
1646 (put 'alphaenumerate 'texinfo-end 'texinfo-end-alphaenumerate)
1647 (defun texinfo-end-alphaenumerate ()
1648 (setq fill-column (+ fill-column 5))
1649 (texinfo-discard-command)
1650 (let ((stacktop
1651 (texinfo-pop-stack 'alphaenumerate)))
1652 (texinfo-do-itemize (nth 1 stacktop))))
1653
1654 ;; @capsenumerate never became a standard part of Texinfo
1655 (put 'capsenumerate 'texinfo-format 'texinfo-capsenumerate)
1656 (defun texinfo-capsenumerate ()
1657 (texinfo-push-stack 'capsenumerate (1- ?A))
1658 (setq fill-column (- fill-column 5))
1659 (texinfo-discard-line))
1660
1661 (put 'capsenumerate 'texinfo-end 'texinfo-end-capsenumerate)
1662 (defun texinfo-end-capsenumerate ()
1663 (setq fill-column (+ fill-column 5))
1664 (texinfo-discard-command)
1665 (let ((stacktop
1666 (texinfo-pop-stack 'capsenumerate)))
1667 (texinfo-do-itemize (nth 1 stacktop))))
1668
1669 ;; At the @end, indent all the lines within the construct
1670 ;; except those marked with backspace. FROM says where
1671 ;; construct started.
1672 (defun texinfo-do-itemize (from)
1673 (save-excursion
1674 (while (progn (forward-line -1)
1675 (>= (point) from))
1676 (if (= (following-char) ?\b)
1677 (save-excursion
1678 (delete-char 1)
1679 (end-of-line)
1680 (delete-char 6))
1681 (if (not (looking-at "[ \t]*$"))
1682 (save-excursion (insert " ")))))))
1683
1684 (put 'item 'texinfo-format 'texinfo-item)
1685 (put 'itemx 'texinfo-format 'texinfo-item)
1686 (defun texinfo-item ()
1687 (funcall (get (car (car texinfo-stack)) 'texinfo-item)))
1688
1689 (put 'itemize 'texinfo-item 'texinfo-itemize-item)
1690 (defun texinfo-itemize-item ()
1691 ;; (texinfo-discard-line) ; Did not handle text on same line as @item.
1692 (delete-region (1+ (point)) (line-beginning-position))
1693 (if (looking-at "[ \t]*[^ \t\n]+")
1694 ;; Text on same line as @item command.
1695 (insert "\b " (nth 1 (car texinfo-stack)) " \n")
1696 ;; Else text on next line.
1697 (insert "\b " (nth 1 (car texinfo-stack)) " "))
1698 (forward-line -1))
1699
1700 (put 'enumerate 'texinfo-item 'texinfo-enumerate-item)
1701 (defun texinfo-enumerate-item ()
1702 (texinfo-discard-line)
1703 (let (enumerating-symbol)
1704 (cond ((integerp (car (cdr (car texinfo-stack))))
1705 (setq enumerating-symbol (car (cdr (car texinfo-stack))))
1706 (insert ?\b (format "%3d. " enumerating-symbol) ?\n)
1707 (setcar (cdr (car texinfo-stack)) (1+ enumerating-symbol)))
1708 ((symbolp (car (cdr (car texinfo-stack))))
1709 (setq enumerating-symbol
1710 (symbol-name (car (cdr (car texinfo-stack)))))
1711 (if (or (equal ?\[ (string-to-char enumerating-symbol))
1712 (equal ?\{ (string-to-char enumerating-symbol)))
1713 (error
1714 "Too many items in enumerated list; alphabet ends at Z."))
1715 (insert ?\b (format "%3s. " enumerating-symbol) ?\n)
1716 (setcar (cdr (car texinfo-stack))
1717 (make-symbol
1718 (char-to-string
1719 (1+
1720 (string-to-char enumerating-symbol))))))
1721 (t
1722 (error
1723 "@enumerate: Use a number or letter, eg: 1, A, a, 3, B or d." )))
1724 (forward-line -1)))
1725
1726 (put 'alphaenumerate 'texinfo-item 'texinfo-alphaenumerate-item)
1727 (defun texinfo-alphaenumerate-item ()
1728 (texinfo-discard-line)
1729 (let ((next (1+ (car (cdr (car texinfo-stack))))))
1730 (if (> next ?z)
1731 (error "More than 26 items in @alphaenumerate; get a bigger alphabet"))
1732 (setcar (cdr (car texinfo-stack)) next)
1733 (insert "\b " next ". \n"))
1734 (forward-line -1))
1735
1736 (put 'capsenumerate 'texinfo-item 'texinfo-capsenumerate-item)
1737 (defun texinfo-capsenumerate-item ()
1738 (texinfo-discard-line)
1739 (let ((next (1+ (car (cdr (car texinfo-stack))))))
1740 (if (> next ?Z)
1741 (error "More than 26 items in @capsenumerate; get a bigger alphabet"))
1742 (setcar (cdr (car texinfo-stack)) next)
1743 (insert "\b " next ". \n"))
1744 (forward-line -1))
1745
1746 \f
1747 ;;; @table
1748
1749 ;; The `@table' command produces two-column tables.
1750
1751 (put 'table 'texinfo-format 'texinfo-table)
1752 (defun texinfo-table ()
1753 (texinfo-push-stack
1754 'table
1755 (progn (skip-chars-forward " \t")
1756 (if (eolp)
1757 "@asis"
1758 (texinfo-parse-line-arg))))
1759 (texinfo-discard-line-with-args)
1760 (setq fill-column (- fill-column 5)))
1761
1762 (put 'table 'texinfo-item 'texinfo-table-item)
1763 (defun texinfo-table-item ()
1764 (let ((arg (texinfo-parse-arg-discard))
1765 (itemfont (car (cdr (car texinfo-stack)))))
1766 (insert ?\b itemfont ?\{ arg "}\n \n"))
1767 (forward-line -2))
1768
1769 (put 'table 'texinfo-end 'texinfo-end-table)
1770 (defun texinfo-end-table ()
1771 (setq fill-column (+ fill-column 5))
1772 (texinfo-discard-command)
1773 (let ((stacktop
1774 (texinfo-pop-stack 'table)))
1775 (texinfo-do-itemize (nth 1 stacktop))))
1776
1777 ;; @description appears to be an undocumented variant on @table that
1778 ;; does not require an arg. It fails in texinfo.tex 2.58 and is not
1779 ;; part of makeinfo.c The command appears to be a relic of the past.
1780 (put 'description 'texinfo-end 'texinfo-end-table)
1781 (put 'description 'texinfo-format 'texinfo-description)
1782 (defun texinfo-description ()
1783 (texinfo-push-stack 'table "@asis")
1784 (setq fill-column (- fill-column 5))
1785 (texinfo-discard-line))
1786
1787 \f
1788 ;;; @ftable, @vtable
1789
1790 ;; The `@ftable' and `@vtable' commands are like the `@table' command
1791 ;; but they also insert each entry in the first column of the table
1792 ;; into the function or variable index.
1793
1794 ;; Handle the @ftable and @vtable commands:
1795
1796 (put 'ftable 'texinfo-format 'texinfo-ftable)
1797 (put 'vtable 'texinfo-format 'texinfo-vtable)
1798
1799 (defun texinfo-ftable () (texinfo-indextable 'ftable))
1800 (defun texinfo-vtable () (texinfo-indextable 'vtable))
1801
1802 (defun texinfo-indextable (table-type)
1803 (texinfo-push-stack table-type (texinfo-parse-arg-discard))
1804 (setq fill-column (- fill-column 5)))
1805
1806 ;; Handle the @item commands within ftable and vtable:
1807
1808 (put 'ftable 'texinfo-item 'texinfo-ftable-item)
1809 (put 'vtable 'texinfo-item 'texinfo-vtable-item)
1810
1811 (defun texinfo-ftable-item () (texinfo-indextable-item 'texinfo-findex))
1812 (defun texinfo-vtable-item () (texinfo-indextable-item 'texinfo-vindex))
1813
1814 (defun texinfo-indextable-item (index-type)
1815 (let ((item (texinfo-parse-arg-discard))
1816 (itemfont (car (cdr (car texinfo-stack))))
1817 (indexvar index-type))
1818 (insert ?\b itemfont ?\{ item "}\n \n")
1819 (set indexvar
1820 (cons
1821 (list item texinfo-last-node)
1822 (symbol-value indexvar)))
1823 (forward-line -2)))
1824
1825 ;; Handle @end ftable, @end vtable
1826
1827 (put 'ftable 'texinfo-end 'texinfo-end-ftable)
1828 (put 'vtable 'texinfo-end 'texinfo-end-vtable)
1829
1830 (defun texinfo-end-ftable () (texinfo-end-indextable 'ftable))
1831 (defun texinfo-end-vtable () (texinfo-end-indextable 'vtable))
1832
1833 (defun texinfo-end-indextable (table-type)
1834 (setq fill-column (+ fill-column 5))
1835 (texinfo-discard-command)
1836 (let ((stacktop
1837 (texinfo-pop-stack table-type)))
1838 (texinfo-do-itemize (nth 1 stacktop))))
1839
1840 \f
1841 ;;; @multitable ... @end multitable
1842
1843 ;; Produce a multi-column table, with as many columns as desired.
1844 ;;
1845 ;; A multi-column table has this template:
1846 ;;
1847 ;; @multitable {A1} {A2} {A3}
1848 ;; @item A1 @tab A2 @tab A3
1849 ;; @item B1 @tab B2 @tab B3
1850 ;; @item C1 @tab C2 @tab C3
1851 ;; @end multitable
1852 ;;
1853 ;; where the width of the text in brackets specifies the width of the
1854 ;; respective column.
1855 ;;
1856 ;; Or else:
1857 ;;
1858 ;; @multitable @columnfractions .25 .3 .45
1859 ;; @item A1 @tab A2 @tab A3
1860 ;; @item B1 @tab B2 @tab B3
1861 ;; @end multitable
1862 ;;
1863 ;; where the fractions specify the width of each column as a percent
1864 ;; of the current width of the text (i.e., of the fill-column).
1865 ;;
1866 ;; Long lines of text are filled within columns.
1867 ;;
1868 ;; Using the Emacs Lisp formatter, texinfmt.el,
1869 ;; the whitespace between columns can be increased by setting
1870 ;; `texinfo-extra-inter-column-width' to a value greater than 0. By default,
1871 ;; there is at least one blank space between columns.
1872 ;;
1873 ;; The Emacs Lisp formatter, texinfmt.el, ignores the following four
1874 ;; commands that are defined in texinfo.tex for printed output.
1875 ;;
1876 ;; @multitableparskip,
1877 ;; @multitableparindent,
1878 ;; @multitablecolmargin,
1879 ;; @multitablelinespace.
1880
1881 ;; How @multitable works.
1882 ;; =====================
1883 ;;
1884 ;; `texinfo-multitable' reads the @multitable line and determines from it
1885 ;; how wide each column should be.
1886 ;;
1887 ;; Also, it pushes this information, along with an identifying symbol,
1888 ;; onto the `texinfo-stack'. At the @end multitable command, the stack
1889 ;; is checked for its matching @multitable command, and then popped, or
1890 ;; else an error is signaled. Also, this command pushes the location of
1891 ;; the start of the table onto the stack.
1892 ;;
1893 ;; `texinfo-end-multitable' checks the `texinfo-stack' that the @end
1894 ;; multitable truly is ending a corresponding beginning, and if it is,
1895 ;; pops the stack.
1896 ;;
1897 ;; `texinfo-multitable-widths' is called by `texinfo-multitable'.
1898 ;; The function returns a list of the widths of each column in a
1899 ;; multi-column table, based on the information supplied by the arguments
1900 ;; to the @multitable command (by arguments, I mean the text on the rest
1901 ;; of the @multitable line, not the remainder of the multi-column table
1902 ;; environment).
1903 ;;
1904 ;; `texinfo-multitable-item' formats a row within a multicolumn table.
1905 ;; This command is executed when texinfmt sees @item inside @multitable.
1906 ;; Cells in row are separated by `@tab's. Widths of cells are specified
1907 ;; by the arguments in the @multitable line. Cells are filled. All cells
1908 ;; are made to be the same height by padding their bottoms, as needed,
1909 ;; with blanks.
1910 ;;
1911 ;; `texinfo-multitable-extract-row' is called by `texinfo-multitable-item'.
1912 ;; This function returns the text in a multitable row, as a string.
1913 ;; The start of a row is marked by an @item and the end of row is the
1914 ;; beginning of next @item or beginning of the @end multitable line.
1915 ;; Cells within a row are separated by @tab.
1916 ;;
1917 ;; Note that @tab, the cell separators, are not treated as independent
1918 ;; Texinfo commands.
1919
1920 (defvar texinfo-extra-inter-column-width 0
1921 "Number of extra spaces between entries (columns) in @multitable.")
1922
1923 (defvar texinfo-multitable-buffer-name "*multitable-temporary-buffer*")
1924 (defvar texinfo-multitable-rectangle-name "texinfo-multitable-temp-")
1925
1926 ;; These commands are defined in texinfo.tex for printed output.
1927 (put 'multitableparskip 'texinfo-format 'texinfo-discard-line-with-args)
1928 (put 'multitableparindent 'texinfo-format 'texinfo-discard-line-with-args)
1929 (put 'multitablecolmargin 'texinfo-format 'texinfo-discard-line-with-args)
1930 (put 'multitablelinespace 'texinfo-format 'texinfo-discard-line-with-args)
1931
1932 (put 'multitable 'texinfo-format 'texinfo-multitable)
1933
1934 (defun texinfo-multitable ()
1935 "Produce multi-column tables.
1936
1937 A multi-column table has this template:
1938
1939 @multitable {A1} {A2} {A3}
1940 @item A1 @tab A2 @tab A3
1941 @item B1 @tab B2 @tab B3
1942 @item C1 @tab C2 @tab C3
1943 @end multitable
1944
1945 where the width of the text in brackets specifies the width of the
1946 respective column.
1947
1948 Or else:
1949
1950 @multitable @columnfractions .25 .3 .45
1951 @item A1 @tab A2 @tab A3
1952 @item B1 @tab B2 @tab B3
1953 @end multitable
1954
1955 where the fractions specify the width of each column as a percent
1956 of the current width of the text (i.e., of the `fill-column').
1957
1958 Long lines of text are filled within columns.
1959
1960 Using the Emacs Lisp formatter, texinfmt.el,
1961 the whitespace between columns can be increased by setting
1962 `texinfo-extra-inter-column-width' to a value greater than 0. By default,
1963 there is at least one blank space between columns.
1964
1965 The Emacs Lisp formatter, texinfmt.el, ignores the following four
1966 commands that are defined in texinfo.tex for printed output.
1967
1968 @multitableparskip,
1969 @multitableparindent,
1970 @multitablecolmargin,
1971 @multitablelinespace."
1972
1973 ;; This function pushes information onto the `texinfo-stack'.
1974 ;; A stack element consists of:
1975 ;; - type-of-command, i.e., multitable
1976 ;; - the information about column widths, and
1977 ;; - the position of texinfo-command-start.
1978 ;; e.g., ('multitable (1 2 3 4) 123)
1979 ;; The command line is then deleted.
1980 (texinfo-push-stack
1981 'multitable
1982 ;; push width information on stack
1983 (texinfo-multitable-widths))
1984 (texinfo-discard-line-with-args))
1985
1986 (put 'multitable 'texinfo-end 'texinfo-end-multitable)
1987 (defun texinfo-end-multitable ()
1988 "Discard the @end multitable line and pop the stack of multitable."
1989 (texinfo-discard-command)
1990 (texinfo-pop-stack 'multitable))
1991
1992 (defun texinfo-multitable-widths ()
1993 "Return list of widths of each column in a multi-column table."
1994 (let (texinfo-multitable-width-list)
1995 ;; Fractions format:
1996 ;; @multitable @columnfractions .25 .3 .45
1997 ;;
1998 ;; Template format:
1999 ;; @multitable {Column 1 template} {Column 2} {Column 3 example}
2000 ;; Place point before first argument
2001 (skip-chars-forward " \t")
2002 (cond
2003 ;; Check for common misspelling
2004 ((looking-at "@columnfraction ")
2005 (error "In @multitable, @columnfractions misspelled"))
2006 ;; Case 1: @columnfractions .25 .3 .45
2007 ((looking-at "@columnfractions")
2008 (forward-word 1)
2009 (while (not (eolp))
2010 (push (truncate
2011 (1-
2012 (* fill-column (read (get-buffer (current-buffer))))))
2013 texinfo-multitable-width-list)))
2014 ;;
2015 ;; Case 2: {Column 1 template} {Column 2} {Column 3 example}
2016 ((looking-at "{")
2017 (let ((start-of-templates (point)))
2018 (while (not (eolp))
2019 (skip-chars-forward " \t")
2020 (let* ((start-of-template (1+ (point)))
2021 (end-of-template
2022 ;; forward-sexp works with braces in Texinfo mode
2023 (progn (forward-sexp 1) (1- (point)))))
2024 (push (- end-of-template start-of-template)
2025 texinfo-multitable-width-list)
2026 ;; Remove carriage return from within a template, if any.
2027 ;; This helps those those who want to use more than
2028 ;; one line's worth of words in @multitable line.
2029 (narrow-to-region start-of-template end-of-template)
2030 (goto-char (point-min))
2031 (while (search-forward "
2032 " nil t)
2033 (delete-char -1))
2034 (goto-char (point-max))
2035 (widen)
2036 (forward-char 1)))))
2037 ;;
2038 ;; Case 3: Trouble
2039 (t
2040 (error
2041 "You probably need to specify column widths for @multitable correctly.")))
2042 ;; Check whether columns fit on page.
2043 (let ((desired-columns
2044 (+
2045 ;; between column spaces
2046 (length texinfo-multitable-width-list)
2047 ;; additional between column spaces, if any
2048 texinfo-extra-inter-column-width
2049 ;; sum of spaces for each entry
2050 (apply '+ texinfo-multitable-width-list))))
2051 (if (> desired-columns fill-column)
2052 (error
2053 "Multi-column table width, %d chars, is greater than page width, %d chars."
2054 desired-columns fill-column)))
2055 texinfo-multitable-width-list))
2056
2057 ;; @item A1 @tab A2 @tab A3
2058 (defun texinfo-multitable-extract-row ()
2059 "Return multitable row, as a string.
2060 End of row is beginning of next @item or beginning of @end.
2061 Cells within rows are separated by @tab."
2062 (skip-chars-forward " \t")
2063 (let* ((start (point))
2064 (end (progn
2065 (re-search-forward "@item\\|@end")
2066 (match-beginning 0)))
2067 (row (progn (goto-char end)
2068 (skip-chars-backward " ")
2069 ;; remove whitespace at end of argument
2070 (delete-region (point) end)
2071 (buffer-substring-no-properties start (point)))))
2072 (delete-region texinfo-command-start end)
2073 row))
2074
2075 (put 'multitable 'texinfo-item 'texinfo-multitable-item)
2076 (defun texinfo-multitable-item ()
2077 "Format a row within a multicolumn table.
2078 Cells in row are separated by @tab.
2079 Widths of cells are specified by the arguments in the @multitable line.
2080 All cells are made to be the same height.
2081 This command is executed when texinfmt sees @item inside @multitable."
2082 (let ((original-buffer (current-buffer))
2083 (table-widths (reverse (car (cdr (car texinfo-stack)))))
2084 (existing-fill-column fill-column)
2085 start
2086 end
2087 (table-column 0)
2088 (table-entry-height 0)
2089 ;; unformatted row looks like: A1 @tab A2 @tab A3
2090 ;; extract-row command deletes the source line in the table.
2091 (unformatted-row (texinfo-multitable-extract-row)))
2092 ;; Use a temporary buffer
2093 (set-buffer (get-buffer-create texinfo-multitable-buffer-name))
2094 (delete-region (point-min) (point-max))
2095 (insert unformatted-row)
2096 (goto-char (point-min))
2097 ;; 1. Check for correct number of @tab in line.
2098 (let ((tab-number 1)) ; one @tab between two columns
2099 (while (search-forward "@tab" nil t)
2100 (setq tab-number (1+ tab-number)))
2101 (let ((needed-tabs (- (length table-widths) tab-number)))
2102 (when (> needed-tabs 0)
2103 (goto-char (point-min))
2104 (end-of-line)
2105 (while (> needed-tabs 0)
2106 (insert "@w{ }\n@tab")
2107 (setq needed-tabs (1- needed-tabs))
2108 (message
2109 "Added @tabs and empty spaces to a @multitable row")))))
2110 (goto-char (point-min))
2111 ;; 2. Format each cell, and copy to a rectangle
2112 ;; buffer looks like this: A1 @tab A2 @tab A3
2113 ;; Cell #1: format up to @tab
2114 ;; Cell #2: format up to @tab
2115 ;; Cell #3: format up to eob
2116 (while (not (eobp))
2117 (setq start (point))
2118 (setq end (save-excursion
2119 (if (search-forward "@tab" nil 'move)
2120 ;; Delete the @tab command, including the @-sign
2121 (delete-region
2122 (point)
2123 (progn (forward-word -1) (1- (point)))))
2124 (point)))
2125 ;; Set fill-column *wider* than needed to produce inter-column space
2126 (setq fill-column (+ 1
2127 texinfo-extra-inter-column-width
2128 (nth table-column table-widths)))
2129 (narrow-to-region start end)
2130 ;; Remove whitespace before and after entry.
2131 (skip-chars-forward " ")
2132 (delete-region (point) (line-beginning-position))
2133 (goto-char (point-max))
2134 (skip-chars-backward " ")
2135 (delete-region (point) (line-end-position))
2136 ;; Temporarily set texinfo-stack to nil so texinfo-format-scan
2137 ;; does not see an unterminated @multitable.
2138 (let (texinfo-stack) ; nil
2139 (texinfo-format-scan))
2140 (let (fill-prefix) ; no fill prefix
2141 (fill-region (point-min) (point-max)))
2142 (setq table-entry-height
2143 (max table-entry-height (count-lines (point-min) (point-max))))
2144 ;; 3. Move point to end of bottom line, and pad that line to fill column.
2145 (goto-char (point-min))
2146 (forward-line (1- table-entry-height))
2147 (let* ((beg (point)) ; beginning of line
2148 ;; add one more space for inter-column spacing
2149 (needed-whitespace
2150 (1+
2151 (- fill-column
2152 (-
2153 (progn (end-of-line) (point)) ; end of existing line
2154 beg)))))
2155 (insert (make-string
2156 (if (> needed-whitespace 0) needed-whitespace 1)
2157 ? )))
2158 ;; now, put formatted cell into a rectangle
2159 (set (intern (concat texinfo-multitable-rectangle-name
2160 (int-to-string table-column)))
2161 (extract-rectangle (point-min) (point)))
2162 (delete-region (point-min) (point))
2163 (goto-char (point-max))
2164 (setq table-column (1+ table-column))
2165 (widen))
2166 ;; 4. Add extra lines to rectangles so all are of same height
2167 (let ((total-number-of-columns table-column)
2168 (column-number 0)
2169 here)
2170 (while (> table-column 0)
2171 (let ((this-rectangle (int-to-string table-column)))
2172 (while (< (length this-rectangle) table-entry-height)
2173 (setq this-rectangle (append this-rectangle '("")))))
2174 (setq table-column (1- table-column)))
2175 ;; 5. Insert formatted rectangles in original buffer
2176 (switch-to-buffer original-buffer)
2177 (open-line table-entry-height)
2178 (while (< column-number total-number-of-columns)
2179 (setq here (point))
2180 (insert-rectangle
2181 (eval (intern
2182 (concat texinfo-multitable-rectangle-name
2183 (int-to-string column-number)))))
2184 (goto-char here)
2185 (end-of-line)
2186 (setq column-number (1+ column-number))))
2187 (kill-buffer texinfo-multitable-buffer-name)
2188 (setq fill-column existing-fill-column)))
2189
2190 \f
2191 ;;; @image
2192 ;; Use only the FILENAME argument to the command.
2193 ;; In Info, ignore the other arguments.
2194
2195 (put 'image 'texinfo-format 'texinfo-format-image)
2196 (defun texinfo-format-image ()
2197 "Insert an image from a file ending in .txt.
2198 Use only the FILENAME arg; for Info, ignore the other arguments to @image."
2199 (let ((args (texinfo-format-parse-args))
2200 filename)
2201 (when (null (nth 0 args))
2202 (error "Invalid image command"))
2203 (texinfo-discard-command)
2204 ;; makeinfo uses FILENAME.txt
2205 (setq filename (format "%s.txt" (nth 0 args)))
2206 (message "Reading included file: %s" filename)
2207 ;; verbatim for Info output
2208 (goto-char (+ (point) (cadr (insert-file-contents filename))))
2209 (message "Reading included file: %s...done" filename)))
2210
2211 \f
2212 ;;; @ifinfo, @iftex, @tex, @ifhtml, @html, @ifplaintext, @ifxml, @xml
2213 ;; @ifnottex, @ifnotinfo, @ifnothtml, @ifnotplaintext, @ifnotxml
2214
2215 (put 'ifinfo 'texinfo-format 'texinfo-discard-line)
2216 (put 'ifinfo 'texinfo-end 'texinfo-discard-command)
2217
2218 (put 'iftex 'texinfo-format 'texinfo-format-iftex)
2219 (defun texinfo-format-iftex ()
2220 (delete-region texinfo-command-start
2221 (re-search-forward "@end iftex[ \t]*\n")))
2222
2223 (put 'ifhtml 'texinfo-format 'texinfo-format-ifhtml)
2224 (defun texinfo-format-ifhtml ()
2225 (delete-region texinfo-command-start
2226 (re-search-forward "@end ifhtml[ \t]*\n")))
2227
2228 (put 'ifplaintext 'texinfo-format 'texinfo-format-ifplaintext)
2229 (defun texinfo-format-ifplaintext ()
2230 (delete-region texinfo-command-start
2231 (re-search-forward "@end ifplaintext[ \t]*\n")))
2232
2233 (put 'ifxml 'texinfo-format 'texinfo-format-ifxml)
2234 (defun texinfo-format-ifxml ()
2235 (delete-region texinfo-command-start
2236 (progn (re-search-forward "^@end ifxml[ \t]*\n")
2237 (point))))
2238
2239 (put 'tex 'texinfo-format 'texinfo-format-tex)
2240 (defun texinfo-format-tex ()
2241 (delete-region texinfo-command-start
2242 (re-search-forward "@end tex[ \t]*\n")))
2243
2244 (put 'html 'texinfo-format 'texinfo-format-html)
2245 (defun texinfo-format-html ()
2246 (delete-region texinfo-command-start
2247 (re-search-forward "@end html[ \t]*\n")))
2248
2249 (put 'xml 'texinfo-format 'texinfo-format-xml)
2250 (defun texinfo-format-xml ()
2251 (delete-region texinfo-command-start
2252 (progn (re-search-forward "^@end xml[ \t]*\n")
2253 (point))))
2254
2255 (put 'ifnotinfo 'texinfo-format 'texinfo-format-ifnotinfo)
2256 (defun texinfo-format-ifnotinfo ()
2257 (delete-region texinfo-command-start
2258 (re-search-forward "@end ifnotinfo[ \t]*\n")))
2259
2260 (put 'ifnotplaintext 'texinfo-format 'texinfo-discard-line)
2261 (put 'ifnotplaintext 'texinfo-end 'texinfo-discard-command)
2262
2263 (put 'ifnottex 'texinfo-format 'texinfo-discard-line)
2264 (put 'ifnottex 'texinfo-end 'texinfo-discard-command)
2265
2266 (put 'ifnothtml 'texinfo-format 'texinfo-discard-line)
2267 (put 'ifnothtml 'texinfo-end 'texinfo-discard-command)
2268
2269 (put 'ifnotxml 'texinfo-format 'texinfo-discard-line)
2270 (put 'ifnotxml 'texinfo-end 'texinfo-discard-command)
2271
2272 \f
2273 ;;; @titlepage
2274
2275 (put 'titlepage 'texinfo-format 'texinfo-format-titlepage)
2276 (defun texinfo-format-titlepage ()
2277 (delete-region texinfo-command-start
2278 (re-search-forward "@end titlepage[ \t]*\n")))
2279
2280 (put 'endtitlepage 'texinfo-format 'texinfo-discard-line)
2281
2282 ;; @titlespec an alternative titling command; ignored by Info
2283
2284 (put 'titlespec 'texinfo-format 'texinfo-format-titlespec)
2285 (defun texinfo-format-titlespec ()
2286 (delete-region texinfo-command-start
2287 (re-search-forward "@end titlespec[ \t]*\n")))
2288
2289 (put 'endtitlespec 'texinfo-format 'texinfo-discard-line)
2290
2291 \f
2292 ;;; @today
2293
2294 (put 'today 'texinfo-format 'texinfo-format-today)
2295
2296 ;; Produces Day Month Year style of output. eg `1 Jan 1900'
2297 ;; The `@today{}' command requires a pair of braces, like `@dots{}'.
2298 (defun texinfo-format-today ()
2299 (texinfo-parse-arg-discard)
2300 (insert (format-time-string "%e %b %Y")))
2301
2302 \f
2303 ;;; @timestamp{}
2304 ;; Produce `Day Month Year Hour:Min' style of output.
2305 ;; eg `1 Jan 1900 13:52'
2306
2307 (put 'timestamp 'texinfo-format 'texinfo-format-timestamp)
2308
2309 ;; The `@timestamp{}' command requires a pair of braces, like `@dots{}'.
2310 (defun texinfo-format-timestamp ()
2311 "Insert the current local time and date."
2312 (texinfo-parse-arg-discard)
2313 ;; For seconds and time zone, replace format string with "%e %b %Y %T %Z"
2314 (insert (format-time-string "%e %b %Y %R")))
2315
2316 \f
2317 ;;; @ignore
2318
2319 (put 'ignore 'texinfo-format 'texinfo-format-ignore)
2320 (defun texinfo-format-ignore ()
2321 (delete-region texinfo-command-start
2322 (re-search-forward "@end ignore[ \t]*\n")))
2323
2324 (put 'endignore 'texinfo-format 'texinfo-discard-line)
2325
2326 \f
2327 ;;; Define the Info enclosure command: @definfoenclose
2328
2329 ;; A `@definfoenclose' command may be used to define a highlighting
2330 ;; command for Info, but not for TeX. A command defined using
2331 ;; `@definfoenclose' marks text by enclosing it in strings that precede
2332 ;; and follow the text.
2333 ;;
2334 ;; Presumably, if you define a command with `@definfoenclose` for Info,
2335 ;; you will also define the same command in the TeX definitions file,
2336 ;; `texinfo.tex' in a manner appropriate for typesetting.
2337 ;;
2338 ;; Write a `@definfoenclose' command on a line and follow it with three
2339 ;; arguments separated by commas (commas are used as separators in an
2340 ;; `@node' line in the same way). The first argument to
2341 ;; `@definfoenclose' is the @-command name \(without the `@'\); the
2342 ;; second argument is the Info start delimiter string; and the third
2343 ;; argument is the Info end delimiter string. The latter two arguments
2344 ;; enclose the highlighted text in the Info file. A delimiter string
2345 ;; may contain spaces. Neither the start nor end delimiter is
2346 ;; required. However, if you do not provide a start delimiter, you
2347 ;; must follow the command name with two commas in a row; otherwise,
2348 ;; the Info formatting commands will misinterpret the end delimiter
2349 ;; string as a start delimiter string.
2350 ;;
2351 ;; If you do a @definfoenclose{} on the name of a pre-defined macro (such
2352 ;; as @emph{}, @strong{}, @tt{}, or @i{}) the enclosure definition will
2353 ;; override the built-in definition.
2354 ;;
2355 ;; An enclosure command defined this way takes one argument in braces.
2356 ;;
2357 ;; For example, you can write:
2358 ;;
2359 ;; @ifinfo
2360 ;; @definfoenclose phoo, //, \\
2361 ;; @end ifinfo
2362 ;;
2363 ;; near the beginning of a Texinfo file at the beginning of the lines
2364 ;; to define `@phoo' as an Info formatting command that inserts `//'
2365 ;; before and `\\' after the argument to `@phoo'. You can then write
2366 ;; `@phoo{bar}' wherever you want `//bar\\' highlighted in Info.
2367 ;;
2368 ;; Also, for TeX formatting, you could write
2369 ;;
2370 ;; @iftex
2371 ;; @global@let@phoo=@i
2372 ;; @end iftex
2373 ;;
2374 ;; to define `@phoo' as a command that causes TeX to typeset
2375 ;; the argument to `@phoo' in italics.
2376 ;;
2377 ;; Note that each definition applies to its own formatter: one for TeX,
2378 ;; the other for texinfo-format-buffer or texinfo-format-region.
2379 ;;
2380 ;; Here is another example: write
2381 ;;
2382 ;; @definfoenclose headword, , :
2383 ;;
2384 ;; near the beginning of the file, to define `@headword' as an Info
2385 ;; formatting command that inserts nothing before and a colon after the
2386 ;; argument to `@headword'.
2387
2388 (put 'definfoenclose 'texinfo-format 'texinfo-define-info-enclosure)
2389 (defun texinfo-define-info-enclosure ()
2390 (let* ((args (texinfo-format-parse-line-args))
2391 (command-name (nth 0 args))
2392 (beginning-delimiter (or (nth 1 args) ""))
2393 (end-delimiter (or (nth 2 args) "")))
2394 (texinfo-discard-command)
2395 (push (list command-name
2396 (list
2397 beginning-delimiter
2398 end-delimiter))
2399 texinfo-enclosure-list)))
2400
2401 \f
2402 ;;; @alias
2403
2404 (put 'alias 'texinfo-format 'texinfo-alias)
2405 (defun texinfo-alias ()
2406 (let ((start (1- (point)))
2407 args)
2408 (skip-chars-forward " ")
2409 (setq texinfo-command-end (line-end-position))
2410 (if (not (looking-at "\\([^=]+\\)=\\(.*\\)"))
2411 (error "Invalid alias command")
2412 (push (cons
2413 (match-string-no-properties 1)
2414 (match-string-no-properties 2))
2415 texinfo-alias-list)
2416 (texinfo-discard-command))))
2417
2418 \f
2419 ;;; @var, @code and the like
2420
2421 (put 'var 'texinfo-format 'texinfo-format-var)
2422 ;; @sc a small caps font for TeX; formatted as `var' in Info
2423 (put 'sc 'texinfo-format 'texinfo-format-var)
2424 ;; @acronym for abbreviations in all caps, such as `NASA'.
2425 ;; Convert all letters to uppercase if they are not already.
2426 (put 'acronym 'texinfo-format 'texinfo-format-var)
2427 (defun texinfo-format-var ()
2428 (let ((arg (texinfo-parse-expanded-arg)))
2429 (texinfo-discard-command)
2430 (insert (upcase arg))))
2431
2432 (put 'cite 'texinfo-format 'texinfo-format-code)
2433 (put 'code 'texinfo-format 'texinfo-format-code)
2434 ;; @command (for command names)
2435 (put 'command 'texinfo-format 'texinfo-format-code)
2436 ;; @env (for environment variables)
2437 (put 'env 'texinfo-format 'texinfo-format-code)
2438 (put 'file 'texinfo-format 'texinfo-format-code)
2439 (put 'samp 'texinfo-format 'texinfo-format-code)
2440 (put 'url 'texinfo-format 'texinfo-format-code)
2441 (defun texinfo-format-code ()
2442 (insert "`" (texinfo-parse-arg-discard) "'")
2443 (goto-char texinfo-command-start))
2444
2445 ;; @option (for command-line options) must be different from @code
2446 ;; because of its special formatting in @table; namely that it does
2447 ;; not lead to inserted ` ... ' in a table, but does elsewhere.
2448 (put 'option 'texinfo-format 'texinfo-format-option)
2449 (defun texinfo-format-option ()
2450 "Insert ` ... ' around arg unless inside a table; in that case, no quotes."
2451 ;; `looking-at-backward' not available in v. 18.57, 20.2
2452 (if (not (search-backward "\b" ; searched-for character is a control-H
2453 (line-beginning-position)
2454 t))
2455 (insert "`" (texinfo-parse-arg-discard) "'")
2456 (insert (texinfo-parse-arg-discard)))
2457 (goto-char texinfo-command-start))
2458
2459 (put 'emph 'texinfo-format 'texinfo-format-emph)
2460 (put 'strong 'texinfo-format 'texinfo-format-emph)
2461 (defun texinfo-format-emph ()
2462 (insert "*" (texinfo-parse-arg-discard) "*")
2463 (goto-char texinfo-command-start))
2464
2465 (put 'dfn 'texinfo-format 'texinfo-format-defn)
2466 (put 'defn 'texinfo-format 'texinfo-format-defn)
2467 (defun texinfo-format-defn ()
2468 (insert "\"" (texinfo-parse-arg-discard) "\"")
2469 (goto-char texinfo-command-start))
2470
2471 (put 'email 'texinfo-format 'texinfo-format-email)
2472 (defun texinfo-format-email ()
2473 "Format email address and optional following full name.
2474 Insert full name, if present, followed by email address
2475 surrounded by in angle brackets."
2476 (let ((args (texinfo-format-parse-args)))
2477 (texinfo-discard-command)
2478 ;; if full-name
2479 (if (nth 1 args)
2480 (insert (nth 1 args) " "))
2481 (insert "<" (nth 0 args) ">")))
2482
2483 (put 'key 'texinfo-format 'texinfo-format-key)
2484 ;; I've decided not want to have angle brackets around these -- rms.
2485 (defun texinfo-format-key ()
2486 (insert (texinfo-parse-arg-discard))
2487 (goto-char texinfo-command-start))
2488
2489 ;; @verb{<char>TEXT<char>} (in `makeinfo' 4.1 and later)
2490 (put 'verb 'texinfo-format 'texinfo-format-verb)
2491 (defun texinfo-format-verb ()
2492 "Format text between non-quoted unique delimiter characters verbatim.
2493 Enclose the verbatim text, including the delimiters, in braces. Print
2494 text exactly as written (but not the delimiters) in a fixed-width.
2495
2496 For example, @verb\{|@|\} results in @ and
2497 @verb\{+@'e?`!`+} results in @'e?`!`."
2498
2499 (let ((delimiter (buffer-substring-no-properties
2500 (1+ texinfo-command-end) (+ 2 texinfo-command-end))))
2501 (unless (looking-at "{")
2502 (error "Not found: @verb start brace"))
2503 (delete-region texinfo-command-start (+ 2 texinfo-command-end))
2504 (search-forward delimiter))
2505 (delete-char -1)
2506 (unless (looking-at "}")
2507 (error "Not found: @verb end brace"))
2508 (delete-char 1))
2509
2510 ;; as of 2002 Dec 10
2511 ;; see (texinfo)Block Enclosing Commands
2512 ;; need: @verbatim
2513
2514 ;; as of 2002 Dec 10
2515 ;; see (texinfo)verbatiminclude
2516 ;; need: @verbatiminclude FILENAME
2517
2518 (put 'bullet 'texinfo-format 'texinfo-format-bullet)
2519 (defun texinfo-format-bullet ()
2520 "Insert an asterisk.
2521 If used within a line, follow `@bullet' with braces."
2522 (texinfo-optional-braces-discard)
2523 (insert "*"))
2524
2525 \f
2526 ;;; @kbd
2527
2528 ;; Inside of @example ... @end example and similar environments,
2529 ;; @kbd does nothing; but outside of such environments, it places
2530 ;; single quotation marks around its argument.
2531
2532 (defvar texinfo-format-kbd-regexp
2533 (concat
2534 "^@"
2535 "\\("
2536 "display\\|"
2537 "example\\|"
2538 "smallexample\\|"
2539 "lisp\\|"
2540 "smalllisp"
2541 "\\)")
2542 "Regexp matching environments in which @kbd does not put `...' around arg.")
2543
2544 (defvar texinfo-format-kbd-end-regexp
2545 (concat
2546 "^@end "
2547 "\\("
2548 "display\\|"
2549 "example\\|"
2550 "smallexample\\|"
2551 "lisp\\|"
2552 "smalllisp"
2553 "\\)")
2554 "Regexp specifying end of environments in which @kbd does not put `...'
2555 around argument. (See `texinfo-format-kbd-regexp')")
2556
2557 (put 'kbd 'texinfo-format 'texinfo-format-kbd)
2558 (defun texinfo-format-kbd ()
2559 "Place single quote marks around arg, except in @example and similar."
2560 ;; Search forward for @end example closer than an @example.
2561 ;; Can stop search at nearest @node or texinfo-section-types-regexp
2562 (let* ((stop
2563 (save-excursion
2564 (re-search-forward
2565 (concat "^@node\\|\\(" texinfo-section-types-regexp "\\)")
2566 nil
2567 'move-to-end) ; if necessary, return point at end of buffer
2568 (point)))
2569 (example-location
2570 (save-excursion
2571 (re-search-forward texinfo-format-kbd-regexp stop 'move-to-end)
2572 (point)))
2573 (end-example-location
2574 (save-excursion
2575 (re-search-forward texinfo-format-kbd-end-regexp stop 'move-to-end)
2576 (point))))
2577 ;; If inside @example, @end example will be closer than @example
2578 ;; or end of search i.e., end-example-location less than example-location
2579 (if (>= end-example-location example-location)
2580 ;; outside an @example or equivalent
2581 (insert "`" (texinfo-parse-arg-discard) "'")
2582 ;; else, in @example; do not surround with `...'
2583 (insert (texinfo-parse-arg-discard)))
2584 (goto-char texinfo-command-start)))
2585
2586 \f
2587 ;;; @example, @lisp, @quotation, @display, @smalllisp, @smallexample,
2588 ;; @smalldisplay
2589
2590 (put 'display 'texinfo-format 'texinfo-format-example)
2591 (put 'smalldisplay 'texinfo-format 'texinfo-format-example)
2592 (put 'example 'texinfo-format 'texinfo-format-example)
2593 (put 'lisp 'texinfo-format 'texinfo-format-example)
2594 (put 'quotation 'texinfo-format 'texinfo-format-example)
2595 (put 'smallexample 'texinfo-format 'texinfo-format-example)
2596 (put 'smalllisp 'texinfo-format 'texinfo-format-example)
2597 (defun texinfo-format-example ()
2598 (texinfo-push-stack 'example nil)
2599 (setq fill-column (- fill-column 5))
2600 (texinfo-discard-line))
2601
2602 (put 'example 'texinfo-end 'texinfo-end-example)
2603 (put 'display 'texinfo-end 'texinfo-end-example)
2604 (put 'smalldisplay 'texinfo-end 'texinfo-end-example)
2605 (put 'lisp 'texinfo-end 'texinfo-end-example)
2606 (put 'quotation 'texinfo-end 'texinfo-end-example)
2607 (put 'smallexample 'texinfo-end 'texinfo-end-example)
2608 (put 'smalllisp 'texinfo-end 'texinfo-end-example)
2609 (defun texinfo-end-example ()
2610 (setq fill-column (+ fill-column 5))
2611 (texinfo-discard-command)
2612 (let ((stacktop
2613 (texinfo-pop-stack 'example)))
2614 (texinfo-do-itemize (nth 1 stacktop))))
2615
2616 (put 'exdent 'texinfo-format 'texinfo-format-exdent)
2617 (defun texinfo-format-exdent ()
2618 (texinfo-discard-command)
2619 (delete-region (point)
2620 (progn
2621 (skip-chars-forward " ")
2622 (point)))
2623 (insert ?\b)
2624 ;; Cancel out the deletion that texinfo-do-itemize
2625 ;; is going to do at the end of this line.
2626 (save-excursion
2627 (end-of-line)
2628 (insert "\n ")))
2629
2630 \f
2631 ;; @direntry and @dircategory
2632
2633 (put 'direntry 'texinfo-format 'texinfo-format-direntry)
2634 (defun texinfo-format-direntry ()
2635 (texinfo-push-stack 'direntry nil)
2636 (texinfo-discard-line)
2637 (insert "START-INFO-DIR-ENTRY\n"))
2638
2639 (put 'direntry 'texinfo-end 'texinfo-end-direntry)
2640 (defun texinfo-end-direntry ()
2641 (texinfo-discard-command)
2642 (insert "END-INFO-DIR-ENTRY\n\n")
2643 (texinfo-pop-stack 'direntry))
2644
2645 (put 'dircategory 'texinfo-format 'texinfo-format-dircategory)
2646 (defun texinfo-format-dircategory ()
2647 (let ((str (texinfo-parse-arg-discard)))
2648 (delete-region (point)
2649 (progn
2650 (skip-chars-forward " ")
2651 (point)))
2652 (insert "INFO-DIR-SECTION " str "\n")))
2653 \f
2654 ;;; @cartouche
2655
2656 ;; The @cartouche command is a noop in Info; in a printed manual,
2657 ;; it makes a box with rounded corners.
2658
2659 (put 'cartouche 'texinfo-format 'texinfo-discard-line)
2660 (put 'cartouche 'texinfo-end 'texinfo-discard-command)
2661
2662 \f
2663 ;;; @flushleft and @format
2664
2665 ;; The @flushleft command left justifies every line but leaves the
2666 ;; right end ragged. As far as Info is concerned, @flushleft is a
2667 ;; `do-nothing' command
2668
2669 ;; The @format command is similar to @example except that it does not
2670 ;; indent; this means that in Info, @format is similar to @flushleft.
2671
2672 (put 'format 'texinfo-format 'texinfo-format-flushleft)
2673 (put 'smallformat 'texinfo-format 'texinfo-format-flushleft)
2674 (put 'flushleft 'texinfo-format 'texinfo-format-flushleft)
2675 (defun texinfo-format-flushleft ()
2676 (texinfo-discard-line))
2677
2678 (put 'format 'texinfo-end 'texinfo-end-flushleft)
2679 (put 'smallformat 'texinfo-end 'texinfo-end-flushleft)
2680 (put 'flushleft 'texinfo-end 'texinfo-end-flushleft)
2681 (defun texinfo-end-flushleft ()
2682 (texinfo-discard-command))
2683
2684 \f
2685 ;;; @flushright
2686
2687 ;; The @flushright command right justifies every line but leaves the
2688 ;; left end ragged. Spaces and tabs at the right ends of lines are
2689 ;; removed so that visible text lines up on the right side.
2690
2691 (put 'flushright 'texinfo-format 'texinfo-format-flushright)
2692 (defun texinfo-format-flushright ()
2693 (texinfo-push-stack 'flushright nil)
2694 (texinfo-discard-line))
2695
2696 (put 'flushright 'texinfo-end 'texinfo-end-flushright)
2697 (defun texinfo-end-flushright ()
2698 (texinfo-discard-command)
2699
2700 (let ((stacktop
2701 (texinfo-pop-stack 'flushright)))
2702
2703 (texinfo-do-flushright (nth 1 stacktop))))
2704
2705 (defun texinfo-do-flushright (from)
2706 (save-excursion
2707 (while (progn (forward-line -1)
2708 (>= (point) from))
2709
2710 (beginning-of-line)
2711 (insert
2712 (make-string
2713 (- fill-column
2714 (save-excursion
2715 (end-of-line)
2716 (skip-chars-backward " \t")
2717 (delete-region (point) (progn (end-of-line) (point)))
2718 (current-column)))
2719 ? )))))
2720
2721 \f
2722 ;;; @ctrl, @TeX, @copyright, @minus, @dots, @enddots, @pounds
2723
2724 (put 'ctrl 'texinfo-format 'texinfo-format-ctrl)
2725 (defun texinfo-format-ctrl ()
2726 (let ((str (texinfo-parse-arg-discard)))
2727 (insert (logand 31 (aref str 0)))))
2728
2729 (put 'TeX 'texinfo-format 'texinfo-format-TeX)
2730 (defun texinfo-format-TeX ()
2731 (texinfo-parse-arg-discard)
2732 (insert "TeX"))
2733
2734 (put 'copyright 'texinfo-format 'texinfo-format-copyright)
2735 (defun texinfo-format-copyright ()
2736 (texinfo-parse-arg-discard)
2737 (insert "(C)"))
2738
2739 (put 'minus 'texinfo-format 'texinfo-format-minus)
2740 (defun texinfo-format-minus ()
2741 "Insert a minus sign.
2742 If used within a line, follow `@minus' with braces."
2743 (texinfo-optional-braces-discard)
2744 (insert "-"))
2745
2746 (put 'dots 'texinfo-format 'texinfo-format-dots)
2747 (defun texinfo-format-dots ()
2748 (texinfo-parse-arg-discard)
2749 (insert "..."))
2750
2751 (put 'enddots 'texinfo-format 'texinfo-format-enddots)
2752 (defun texinfo-format-enddots ()
2753 (texinfo-parse-arg-discard)
2754 (insert "...."))
2755
2756 (put 'pounds 'texinfo-format 'texinfo-format-pounds)
2757 (defun texinfo-format-pounds ()
2758 (texinfo-parse-arg-discard)
2759 (insert "#"))
2760
2761 \f
2762 ;;; Refilling and indenting: @refill, @paragraphindent, @noindent
2763
2764 ;; Indent only those paragraphs that are refilled as a result of an
2765 ;; @refill command.
2766
2767 ;; * If the value is `asis', do not change the existing indentation at
2768 ;; the starts of paragraphs.
2769
2770 ;; * If the value zero, delete any existing indentation.
2771
2772 ;; * If the value is greater than zero, indent each paragraph by that
2773 ;; number of spaces.
2774
2775 ;; But do not refill paragraphs with an @refill command that are
2776 ;; preceded by @noindent or are part of a table, list, or deffn.
2777
2778 (defvar texinfo-paragraph-indent "asis"
2779 "Number of spaces for @refill to indent a paragraph; else to leave as is.")
2780
2781 (put 'paragraphindent 'texinfo-format 'texinfo-paragraphindent)
2782
2783 (defun texinfo-paragraphindent ()
2784 "Specify the number of spaces for @refill to indent a paragraph.
2785 Default is to leave the number of spaces as is."
2786 (let ((arg (texinfo-parse-arg-discard)))
2787 (if (string= "asis" arg)
2788 (setq texinfo-paragraph-indent "asis")
2789 (setq texinfo-paragraph-indent (string-to-number arg)))))
2790
2791 (put 'refill 'texinfo-format 'texinfo-format-refill)
2792 (defun texinfo-format-refill ()
2793 "Refill paragraph. Also, indent first line as set by @paragraphindent.
2794 Default is to leave paragraph indentation as is."
2795 (texinfo-discard-command)
2796 (let ((position (point-marker)))
2797 (forward-paragraph -1)
2798 (if (looking-at "[ \t\n]*$") (forward-line 1))
2799 ;; Do not indent if an entry in a list, table, or deffn,
2800 ;; or if paragraph is preceded by @noindent.
2801 ;; Otherwise, indent
2802 (cond
2803 ;; delete a @noindent line and do not indent paragraph
2804 ((save-excursion (forward-line -1)
2805 (looking-at "^@noindent"))
2806 (forward-line -1)
2807 (delete-region (point) (progn (forward-line 1) (point))))
2808 ;; do nothing if "asis"
2809 ((equal texinfo-paragraph-indent "asis"))
2810 ;; do no indenting in list, etc.
2811 ((> texinfo-stack-depth 0))
2812 ;; otherwise delete existing whitespace and indent
2813 (t
2814 (delete-region (point) (progn (skip-chars-forward " \t") (point)))
2815 (insert (make-string texinfo-paragraph-indent ? ))))
2816 (forward-paragraph 1)
2817 (forward-line -1)
2818 (end-of-line)
2819 ;; Do not fill a section title line with asterisks, hyphens, etc. that
2820 ;; are used to underline it. This could occur if the line following
2821 ;; the underlining is not an index entry and has text within it.
2822 (let* ((previous-paragraph-separate paragraph-separate)
2823 (paragraph-separate
2824 (concat paragraph-separate "\\|[-=.]+\\|\\*\\*+"))
2825 (previous-paragraph-start paragraph-start)
2826 (paragraph-start
2827 (concat paragraph-start "\\|[-=.]+\\|\\*\\*+")))
2828 (unwind-protect
2829 (fill-paragraph nil)
2830 (setq paragraph-separate previous-paragraph-separate)
2831 (setq paragraph-start previous-paragraph-start)))
2832 (goto-char position)))
2833
2834 (put 'noindent 'texinfo-format 'texinfo-noindent)
2835 (defun texinfo-noindent ()
2836 (save-excursion
2837 (forward-paragraph 1)
2838 (if (search-backward "@refill" (line-beginning-position 0) t)
2839 () ; leave @noindent command so @refill command knows not to indent
2840 ;; else
2841 (texinfo-discard-line))))
2842
2843 \f
2844 ;;; Index generation
2845
2846 (put 'vindex 'texinfo-format 'texinfo-format-vindex)
2847 (defun texinfo-format-vindex ()
2848 (texinfo-index 'texinfo-vindex))
2849
2850 (put 'cindex 'texinfo-format 'texinfo-format-cindex)
2851 (defun texinfo-format-cindex ()
2852 (texinfo-index 'texinfo-cindex))
2853
2854 (put 'findex 'texinfo-format 'texinfo-format-findex)
2855 (defun texinfo-format-findex ()
2856 (texinfo-index 'texinfo-findex))
2857
2858 (put 'pindex 'texinfo-format 'texinfo-format-pindex)
2859 (defun texinfo-format-pindex ()
2860 (texinfo-index 'texinfo-pindex))
2861
2862 (put 'tindex 'texinfo-format 'texinfo-format-tindex)
2863 (defun texinfo-format-tindex ()
2864 (texinfo-index 'texinfo-tindex))
2865
2866 (put 'kindex 'texinfo-format 'texinfo-format-kindex)
2867 (defun texinfo-format-kindex ()
2868 (texinfo-index 'texinfo-kindex))
2869
2870 (defun texinfo-index (indexvar)
2871 (let ((arg (texinfo-parse-expanded-arg)))
2872 (texinfo-discard-command)
2873 (set indexvar
2874 (cons (list arg
2875 texinfo-last-node
2876 ;; Region formatting may not provide last node position.
2877 (if texinfo-last-node-pos
2878 (1+ (count-lines texinfo-last-node-pos (point)))
2879 1))
2880 (symbol-value indexvar)))))
2881
2882 (defvar texinfo-indexvar-alist
2883 '(("cp" . texinfo-cindex)
2884 ("fn" . texinfo-findex)
2885 ("vr" . texinfo-vindex)
2886 ("tp" . texinfo-tindex)
2887 ("pg" . texinfo-pindex)
2888 ("ky" . texinfo-kindex)))
2889
2890 \f
2891 ;;; @defindex @defcodeindex
2892 (put 'defindex 'texinfo-format 'texinfo-format-defindex)
2893 (put 'defcodeindex 'texinfo-format 'texinfo-format-defindex)
2894
2895 (defun texinfo-format-defindex ()
2896 (let* ((index-name (texinfo-parse-arg-discard)) ; eg: `aa'
2897 (indexing-command (intern (concat index-name "index")))
2898 (index-formatting-command ; eg: `texinfo-format-aaindex'
2899 (intern (concat "texinfo-format-" index-name "index")))
2900 (index-alist-name ; eg: `texinfo-aaindex'
2901 (intern (concat "texinfo-" index-name "index"))))
2902
2903 (set index-alist-name nil)
2904
2905 (put indexing-command ; eg, aaindex
2906 'texinfo-format
2907 index-formatting-command) ; eg, texinfo-format-aaindex
2908
2909 ;; eg: "aa" . texinfo-aaindex
2910 (or (assoc index-name texinfo-indexvar-alist)
2911 (push (cons index-name
2912 index-alist-name)
2913 texinfo-indexvar-alist))
2914
2915 (fset index-formatting-command
2916 (list 'lambda 'nil
2917 (list 'texinfo-index
2918 (list 'quote index-alist-name))))))
2919
2920 \f
2921 ;;; @synindex @syncodeindex
2922
2923 (put 'synindex 'texinfo-format 'texinfo-format-synindex)
2924 (put 'syncodeindex 'texinfo-format 'texinfo-format-synindex)
2925
2926 (defun texinfo-format-synindex ()
2927 (let* ((args (texinfo-parse-arg-discard))
2928 (second (cdr (read-from-string args)))
2929 (joiner (symbol-name (car (read-from-string args))))
2930 (joined (symbol-name (car (read-from-string args second)))))
2931
2932 (if (assoc joiner texinfo-short-index-cmds-alist)
2933 (put
2934 (cdr (assoc joiner texinfo-short-index-cmds-alist))
2935 'texinfo-format
2936 (or (cdr (assoc joined texinfo-short-index-format-cmds-alist))
2937 (intern (concat "texinfo-format-" joined "index"))))
2938 (put
2939 (intern (concat joiner "index"))
2940 'texinfo-format
2941 (or (cdr(assoc joined texinfo-short-index-format-cmds-alist))
2942 (intern (concat "texinfo-format-" joined "index")))))))
2943
2944 (defconst texinfo-short-index-cmds-alist
2945 '(("cp" . cindex)
2946 ("fn" . findex)
2947 ("vr" . vindex)
2948 ("tp" . tindex)
2949 ("pg" . pindex)
2950 ("ky" . kindex)))
2951
2952 (defconst texinfo-short-index-format-cmds-alist
2953 '(("cp" . texinfo-format-cindex)
2954 ("fn" . texinfo-format-findex)
2955 ("vr" . texinfo-format-vindex)
2956 ("tp" . texinfo-format-tindex)
2957 ("pg" . texinfo-format-pindex)
2958 ("ky" . texinfo-format-kindex)))
2959
2960 \f
2961 ;;; Sort and index
2962
2963 ;; Sort an index which is in the current buffer between START and END.
2964 (defun texinfo-sort-region (start end)
2965 (require 'sort)
2966 (save-restriction
2967 (narrow-to-region start end)
2968 (goto-char (point-min))
2969 (sort-subr nil 'forward-line 'end-of-line 'texinfo-sort-startkeyfun)))
2970
2971 ;; Subroutine for sorting an index.
2972 ;; At start of a line, return a string to sort the line under.
2973 (defun texinfo-sort-startkeyfun ()
2974 (let ((line (buffer-substring-no-properties (point) (line-end-position))))
2975 ;; Canonicalize whitespace and eliminate funny chars.
2976 (while (string-match "[ \t][ \t]+\\|[^a-z0-9 ]+" line)
2977 (setq line (concat (substring line 0 (match-beginning 0))
2978 " "
2979 (substring line (match-end 0)))))
2980 line))
2981
2982 \f
2983 ;;; @printindex
2984
2985 (put 'printindex 'texinfo-format 'texinfo-format-printindex)
2986
2987 (defun texinfo-format-printindex ()
2988 (let* ((arg (texinfo-parse-arg-discard))
2989 (fmt (cdr (assoc arg texinfo-short-index-format-cmds-alist)))
2990 (index-list (delq nil (mapcar (lambda (e)
2991 (and (eq fmt (get (cdr e) 'texinfo-format))
2992 (cdr (assoc (car e) texinfo-indexvar-alist))))
2993 texinfo-short-index-cmds-alist)))
2994 (indexelts (apply #'append nil (mapcar #'symbol-value index-list)))
2995 opoint)
2996 (insert "\n* Menu:\n\n")
2997 (setq opoint (point))
2998 (texinfo-print-index nil indexelts)
2999 (texinfo-sort-region opoint (point))))
3000
3001 (defun texinfo-print-index (file indexelts)
3002 (while indexelts
3003 (if (stringp (car (car indexelts)))
3004 (progn
3005 (insert "* " (car (car indexelts)) ": " )
3006 (indent-to 32)
3007 (insert
3008 (if file (concat "(" file ")") "")
3009 (nth 1 (car indexelts)) ".")
3010 (indent-to 54)
3011 (insert
3012 (if (nth 2 (car indexelts))
3013 (format " (line %3d)" (1+ (nth 2 (car indexelts))))
3014 "")
3015 "\n"))
3016 ;; index entries from @include'd file
3017 (texinfo-print-index (nth 1 (car indexelts))
3018 (nth 2 (car indexelts))))
3019 (setq indexelts (cdr indexelts))))
3020
3021 \f
3022 ;;; Glyphs: @equiv, @error, etc
3023
3024 ;; @equiv to show that two expressions are equivalent
3025 ;; @error to show an error message
3026 ;; @expansion to show what a macro expands to
3027 ;; @point to show the location of point in an example
3028 ;; @print to show what an evaluated expression prints
3029 ;; @result to indicate the value returned by an expression
3030
3031 (put 'equiv 'texinfo-format 'texinfo-format-equiv)
3032 (defun texinfo-format-equiv ()
3033 (texinfo-parse-arg-discard)
3034 (insert "=="))
3035
3036 (put 'error 'texinfo-format 'texinfo-format-error)
3037 (defun texinfo-format-error ()
3038 (texinfo-parse-arg-discard)
3039 (insert "error-->"))
3040
3041 (put 'expansion 'texinfo-format 'texinfo-format-expansion)
3042 (defun texinfo-format-expansion ()
3043 (texinfo-parse-arg-discard)
3044 (insert "==>"))
3045
3046 (put 'point 'texinfo-format 'texinfo-format-point)
3047 (defun texinfo-format-point ()
3048 (texinfo-parse-arg-discard)
3049 (insert "-!-"))
3050
3051 (put 'print 'texinfo-format 'texinfo-format-print)
3052 (defun texinfo-format-print ()
3053 (texinfo-parse-arg-discard)
3054 (insert "-|"))
3055
3056 (put 'result 'texinfo-format 'texinfo-format-result)
3057 (defun texinfo-format-result ()
3058 (texinfo-parse-arg-discard)
3059 (insert "=>"))
3060
3061 \f
3062 ;;; Accent commands
3063
3064 ;; Info presumes a plain ASCII output, so the accented characters do
3065 ;; not look as they would if typeset, or output with a different
3066 ;; character set.
3067
3068 ;; See the `texinfo-accent-commands' variable
3069 ;; in the section for `texinfo-append-refill'.
3070 ;; Also, see the defun for `texinfo-format-scan'
3071 ;; for single-character accent commands.
3072
3073 ;; Command Info output Name
3074
3075 ;; These do not have braces:
3076 ;; @^ ==> ^ circumflex accent
3077 ;; @` ==> ` grave accent
3078 ;; @' ==> ' acute accent
3079 ;; @" ==> " umlaut accent
3080 ;; @= ==> = overbar accent
3081 ;; @~ ==> ~ tilde accent
3082
3083 ;; These have braces, but take no argument:
3084 ;; @OE{} ==> OE French-OE-ligature
3085 ;; @oe{} ==> oe
3086 ;; @AA{} ==> AA Scandinavian-A-with-circle
3087 ;; @aa{} ==> aa
3088 ;; @AE{} ==> AE Latin-Scandinavian-AE
3089 ;; @ae{} ==> ae
3090 ;; @ss{} ==> ss German-sharp-S
3091
3092 ;; @questiondown{} ==> ? upside-down-question-mark
3093 ;; @exclamdown{} ==> ! upside-down-exclamation-mark
3094 ;; @L{} ==> L/ Polish suppressed-L (Lslash)
3095 ;; @l{} ==> l/ Polish suppressed-L (Lslash) (lower case)
3096 ;; @O{} ==> O/ Scandinavian O-with-slash
3097 ;; @o{} ==> o/ Scandinavian O-with-slash (lower case)
3098
3099 ;; These have braces, and take an argument:
3100 ;; @,{c} ==> c, cedilla accent
3101 ;; @dotaccent{o} ==> .o overdot-accent
3102 ;; @ubaraccent{o} ==> _o underbar-accent
3103 ;; @udotaccent{o} ==> o-. underdot-accent
3104 ;; @H{o} ==> ""o long Hungarian umlaut
3105 ;; @ringaccent{o} ==> *o ring accent
3106 ;; @tieaccent{oo} ==> [oo tie after accent
3107 ;; @u{o} ==> (o breve accent
3108 ;; @v{o} ==> <o hacek accent
3109 ;; @dotless{i} ==> i dotless i and dotless j
3110
3111 ;; ==========
3112
3113 ;; Note: The defun texinfo-format-scan
3114 ;; looks at "[@{}^'`\",=~ *?!-]"
3115 ;; In the case of @*, a line break is inserted;
3116 ;; in the other cases, the characters are simply quoted and the @ is deleted.
3117 ;; Thus, `texinfo-format-scan' handles the following
3118 ;; single-character accent commands: @^ @` @' @" @, @- @= @~
3119
3120 ;; @^ ==> ^ circumflex accent
3121 ;; (put '^ 'texinfo-format 'texinfo-format-circumflex-accent)
3122 ;; (defun texinfo-format-circumflex-accent ()
3123 ;; (texinfo-discard-command)
3124 ;; (insert "^"))
3125 ;;
3126 ;; @` ==> ` grave accent
3127 ;; (put '\` 'texinfo-format 'texinfo-format-grave-accent)
3128 ;; (defun texinfo-format-grave-accent ()
3129 ;; (texinfo-discard-command)
3130 ;; (insert "\`"))
3131 ;;
3132 ;; @' ==> ' acute accent
3133 ;; (put '\' 'texinfo-format 'texinfo-format-acute-accent)
3134 ;; (defun texinfo-format-acute-accent ()
3135 ;; (texinfo-discard-command)
3136 ;; (insert "'"))
3137 ;;
3138 ;; @" ==> " umlaut accent
3139 ;; (put '\" 'texinfo-format 'texinfo-format-umlaut-accent)
3140 ;; (defun texinfo-format-umlaut-accent ()
3141 ;; (texinfo-discard-command)
3142 ;; (insert "\""))
3143 ;;
3144 ;; @= ==> = overbar accent
3145 ;; (put '= 'texinfo-format 'texinfo-format-overbar-accent)
3146 ;; (defun texinfo-format-overbar-accent ()
3147 ;; (texinfo-discard-command)
3148 ;; (insert "="))
3149 ;;
3150 ;; @~ ==> ~ tilde accent
3151 ;; (put '~ 'texinfo-format 'texinfo-format-tilde-accent)
3152 ;; (defun texinfo-format-tilde-accent ()
3153 ;; (texinfo-discard-command)
3154 ;; (insert "~"))
3155
3156 ;; @OE{} ==> OE French-OE-ligature
3157 (put 'OE 'texinfo-format 'texinfo-format-French-OE-ligature)
3158 (defun texinfo-format-French-OE-ligature ()
3159 (insert "OE" (texinfo-parse-arg-discard))
3160 (goto-char texinfo-command-start))
3161
3162 ;; @oe{} ==> oe
3163 (put 'oe 'texinfo-format 'texinfo-format-French-oe-ligature)
3164 (defun texinfo-format-French-oe-ligature () ; lower case
3165 (insert "oe" (texinfo-parse-arg-discard))
3166 (goto-char texinfo-command-start))
3167
3168 ;; @AA{} ==> AA Scandinavian-A-with-circle
3169 (put 'AA 'texinfo-format 'texinfo-format-Scandinavian-A-with-circle)
3170 (defun texinfo-format-Scandinavian-A-with-circle ()
3171 (insert "AA" (texinfo-parse-arg-discard))
3172 (goto-char texinfo-command-start))
3173
3174 ;; @aa{} ==> aa
3175 (put 'aa 'texinfo-format 'texinfo-format-Scandinavian-a-with-circle)
3176 (defun texinfo-format-Scandinavian-a-with-circle () ; lower case
3177 (insert "aa" (texinfo-parse-arg-discard))
3178 (goto-char texinfo-command-start))
3179
3180 ;; @AE{} ==> AE Latin-Scandinavian-AE
3181 (put 'AE 'texinfo-format 'texinfo-format-Latin-Scandinavian-AE)
3182 (defun texinfo-format-Latin-Scandinavian-AE ()
3183 (insert "AE" (texinfo-parse-arg-discard))
3184 (goto-char texinfo-command-start))
3185
3186 ;; @ae{} ==> ae
3187 (put 'ae 'texinfo-format 'texinfo-format-Latin-Scandinavian-ae)
3188 (defun texinfo-format-Latin-Scandinavian-ae () ; lower case
3189 (insert "ae" (texinfo-parse-arg-discard))
3190 (goto-char texinfo-command-start))
3191
3192 ;; @ss{} ==> ss German-sharp-S
3193 (put 'ss 'texinfo-format 'texinfo-format-German-sharp-S)
3194 (defun texinfo-format-German-sharp-S ()
3195 (insert "ss" (texinfo-parse-arg-discard))
3196 (goto-char texinfo-command-start))
3197
3198 ;; @questiondown{} ==> ? upside-down-question-mark
3199 (put 'questiondown 'texinfo-format 'texinfo-format-upside-down-question-mark)
3200 (defun texinfo-format-upside-down-question-mark ()
3201 (insert "?" (texinfo-parse-arg-discard))
3202 (goto-char texinfo-command-start))
3203
3204 ;; @exclamdown{} ==> ! upside-down-exclamation-mark
3205 (put 'exclamdown 'texinfo-format 'texinfo-format-upside-down-exclamation-mark)
3206 (defun texinfo-format-upside-down-exclamation-mark ()
3207 (insert "!" (texinfo-parse-arg-discard))
3208 (goto-char texinfo-command-start))
3209
3210 ;; @L{} ==> L/ Polish suppressed-L (Lslash)
3211 (put 'L 'texinfo-format 'texinfo-format-Polish-suppressed-L)
3212 (defun texinfo-format-Polish-suppressed-L ()
3213 (insert (texinfo-parse-arg-discard) "/L")
3214 (goto-char texinfo-command-start))
3215
3216 ;; @l{} ==> l/ Polish suppressed-L (Lslash) (lower case)
3217 (put 'l 'texinfo-format 'texinfo-format-Polish-suppressed-l-lower-case)
3218 (defun texinfo-format-Polish-suppressed-l-lower-case ()
3219 (insert (texinfo-parse-arg-discard) "/l")
3220 (goto-char texinfo-command-start))
3221
3222
3223 ;; @O{} ==> O/ Scandinavian O-with-slash
3224 (put 'O 'texinfo-format 'texinfo-format-Scandinavian-O-with-slash)
3225 (defun texinfo-format-Scandinavian-O-with-slash ()
3226 (insert (texinfo-parse-arg-discard) "O/")
3227 (goto-char texinfo-command-start))
3228
3229 ;; @o{} ==> o/ Scandinavian O-with-slash (lower case)
3230 (put 'o 'texinfo-format 'texinfo-format-Scandinavian-o-with-slash-lower-case)
3231 (defun texinfo-format-Scandinavian-o-with-slash-lower-case ()
3232 (insert (texinfo-parse-arg-discard) "o/")
3233 (goto-char texinfo-command-start))
3234
3235 ;; Take arguments
3236
3237 ;; @,{c} ==> c, cedilla accent
3238 (put '\, 'texinfo-format 'texinfo-format-cedilla-accent)
3239 (defun texinfo-format-cedilla-accent ()
3240 (insert (texinfo-parse-arg-discard) ",")
3241 (goto-char texinfo-command-start))
3242
3243
3244 ;; @dotaccent{o} ==> .o overdot-accent
3245 (put 'dotaccent 'texinfo-format 'texinfo-format-overdot-accent)
3246 (defun texinfo-format-overdot-accent ()
3247 (insert "." (texinfo-parse-arg-discard))
3248 (goto-char texinfo-command-start))
3249
3250 ;; @ubaraccent{o} ==> _o underbar-accent
3251 (put 'ubaraccent 'texinfo-format 'texinfo-format-underbar-accent)
3252 (defun texinfo-format-underbar-accent ()
3253 (insert "_" (texinfo-parse-arg-discard))
3254 (goto-char texinfo-command-start))
3255
3256 ;; @udotaccent{o} ==> o-. underdot-accent
3257 (put 'udotaccent 'texinfo-format 'texinfo-format-underdot-accent)
3258 (defun texinfo-format-underdot-accent ()
3259 (insert (texinfo-parse-arg-discard) "-.")
3260 (goto-char texinfo-command-start))
3261
3262 ;; @H{o} ==> ""o long Hungarian umlaut
3263 (put 'H 'texinfo-format 'texinfo-format-long-Hungarian-umlaut)
3264 (defun texinfo-format-long-Hungarian-umlaut ()
3265 (insert "\"\"" (texinfo-parse-arg-discard))
3266 (goto-char texinfo-command-start))
3267
3268 ;; @ringaccent{o} ==> *o ring accent
3269 (put 'ringaccent 'texinfo-format 'texinfo-format-ring-accent)
3270 (defun texinfo-format-ring-accent ()
3271 (insert "*" (texinfo-parse-arg-discard))
3272 (goto-char texinfo-command-start))
3273
3274 ;; @tieaccent{oo} ==> [oo tie after accent
3275 (put 'tieaccent 'texinfo-format 'texinfo-format-tie-after-accent)
3276 (defun texinfo-format-tie-after-accent ()
3277 (insert "[" (texinfo-parse-arg-discard))
3278 (goto-char texinfo-command-start))
3279
3280
3281 ;; @u{o} ==> (o breve accent
3282 (put 'u 'texinfo-format 'texinfo-format-breve-accent)
3283 (defun texinfo-format-breve-accent ()
3284 (insert "(" (texinfo-parse-arg-discard))
3285 (goto-char texinfo-command-start))
3286
3287 ;; @v{o} ==> <o hacek accent
3288 (put 'v 'texinfo-format 'texinfo-format-hacek-accent)
3289 (defun texinfo-format-hacek-accent ()
3290 (insert "<" (texinfo-parse-arg-discard))
3291 (goto-char texinfo-command-start))
3292
3293
3294 ;; @dotless{i} ==> i dotless i and dotless j
3295 (put 'dotless 'texinfo-format 'texinfo-format-dotless)
3296 (defun texinfo-format-dotless ()
3297 (insert (texinfo-parse-arg-discard))
3298 (goto-char texinfo-command-start))
3299
3300 \f
3301 ;;; Definition formatting: @deffn, @defun, etc
3302
3303 ;; What definition formatting produces:
3304 ;;
3305 ;; @deffn category name args...
3306 ;; In Info, `Category: name ARGS'
3307 ;; In index: name: node. line#.
3308 ;;
3309 ;; @defvr category name
3310 ;; In Info, `Category: name'
3311 ;; In index: name: node. line#.
3312 ;;
3313 ;; @deftp category name attributes...
3314 ;; `category name attributes...' Note: @deftp args in lower case.
3315 ;; In index: name: node. line#.
3316 ;;
3317 ;; Specialized function-like or variable-like entity:
3318 ;;
3319 ;; @defun, @defmac, @defspec, @defvar, @defopt
3320 ;;
3321 ;; @defun name args In Info, `Function: name ARGS'
3322 ;; @defmac name args In Info, `Macro: name ARGS'
3323 ;; @defvar name In Info, `Variable: name'
3324 ;; etc.
3325 ;; In index: name: node. line#.
3326 ;;
3327 ;; Generalized typed-function-like or typed-variable-like entity:
3328 ;; @deftypefn category data-type name args...
3329 ;; In Info, `Category: data-type name args...'
3330 ;; @deftypevr category data-type name
3331 ;; In Info, `Category: data-type name'
3332 ;; In index: name: node. line#.
3333 ;;
3334 ;; Specialized typed-function-like or typed-variable-like entity:
3335 ;; @deftypefun data-type name args...
3336 ;; In Info, `Function: data-type name ARGS'
3337 ;; In index: name: node. line#.
3338 ;;
3339 ;; @deftypevar data-type name
3340 ;; In Info, `Variable: data-type name'
3341 ;; In index: name: node. line#. but include args after name!?
3342 ;;
3343 ;; Generalized object oriented entity:
3344 ;; @defop category class name args...
3345 ;; In Info, `Category on class: name ARG'
3346 ;; In index: name on class: node. line#.
3347 ;;
3348 ;; @defcv category class name
3349 ;; In Info, `Category of class: name'
3350 ;; In index: name of class: node. line#.
3351 ;;
3352 ;; Specialized object oriented entity:
3353 ;; @defmethod class name args...
3354 ;; In Info, `Method on class: name ARGS'
3355 ;; In index: name on class: node. line#.
3356 ;;
3357 ;; @defivar class name
3358 ;; In Info, `Instance variable of class: name'
3359 ;; In index: name of class: node. line#.
3360
3361 \f
3362 ;;; The definition formatting functions
3363
3364 (defun texinfo-format-defun ()
3365 (texinfo-push-stack 'defun nil)
3366 (setq fill-column (- fill-column 5))
3367 (texinfo-format-defun-1 t))
3368
3369 (defun texinfo-end-defun ()
3370 (setq fill-column (+ fill-column 5))
3371 (texinfo-discard-command)
3372 (let ((start (nth 1 (texinfo-pop-stack 'defun))))
3373 (texinfo-do-itemize start)
3374 ;; Delete extra newline inserted after header.
3375 (save-excursion
3376 (goto-char start)
3377 (delete-char -1))))
3378
3379 (defun texinfo-format-defunx ()
3380 (texinfo-format-defun-1 nil))
3381
3382 (defun texinfo-format-defun-1 (first-p)
3383 (let ((parse-args (texinfo-format-parse-defun-args))
3384 (texinfo-defun-type (get texinfo-command-name 'texinfo-defun-type)))
3385 (texinfo-discard-command)
3386 ;; Delete extra newline inserted after previous header line.
3387 (if (not first-p)
3388 (delete-char -1))
3389 (funcall
3390 (get texinfo-command-name 'texinfo-deffn-formatting-property) parse-args)
3391 ;; Insert extra newline so that paragraph filling does not mess
3392 ;; with header line.
3393 (insert "\n\n")
3394 (rplaca (cdr (cdr (car texinfo-stack))) (point))
3395 (funcall
3396 (get texinfo-command-name 'texinfo-defun-indexing-property) parse-args)))
3397
3398 ;;; Formatting the first line of a definition
3399
3400 ;; @deffn, @defvr, @deftp
3401 (put 'deffn 'texinfo-deffn-formatting-property 'texinfo-format-deffn)
3402 (put 'deffnx 'texinfo-deffn-formatting-property 'texinfo-format-deffn)
3403 (put 'defvr 'texinfo-deffn-formatting-property 'texinfo-format-deffn)
3404 (put 'defvrx 'texinfo-deffn-formatting-property 'texinfo-format-deffn)
3405 (put 'deftp 'texinfo-deffn-formatting-property 'texinfo-format-deffn)
3406 (put 'deftpx 'texinfo-deffn-formatting-property 'texinfo-format-deffn)
3407 (defun texinfo-format-deffn (parsed-args)
3408 ;; Generalized function-like, variable-like, or generic data-type entity:
3409 ;; @deffn category name args...
3410 ;; In Info, `Category: name ARGS'
3411 ;; @deftp category name attributes...
3412 ;; `category name attributes...' Note: @deftp args in lower case.
3413 (let ((category (car parsed-args))
3414 (name (car (cdr parsed-args)))
3415 (args (cdr (cdr parsed-args))))
3416 (insert " -- " category ": " name)
3417 (while args
3418 (insert " "
3419 (if (or (= ?& (aref (car args) 0))
3420 (eq (eval (car texinfo-defun-type)) 'deftp-type))
3421 (car args)
3422 (upcase (car args))))
3423 (setq args (cdr args)))))
3424
3425 ;; @defun, @defmac, @defspec, @defvar, @defopt: Specialized, simple
3426 (put 'defun 'texinfo-deffn-formatting-property
3427 'texinfo-format-specialized-defun)
3428 (put 'defunx 'texinfo-deffn-formatting-property
3429 'texinfo-format-specialized-defun)
3430 (put 'defmac 'texinfo-deffn-formatting-property
3431 'texinfo-format-specialized-defun)
3432 (put 'defmacx 'texinfo-deffn-formatting-property
3433 'texinfo-format-specialized-defun)
3434 (put 'defspec 'texinfo-deffn-formatting-property
3435 'texinfo-format-specialized-defun)
3436 (put 'defspecx 'texinfo-deffn-formatting-property
3437 'texinfo-format-specialized-defun)
3438 (put 'defvar 'texinfo-deffn-formatting-property
3439 'texinfo-format-specialized-defun)
3440 (put 'defvarx 'texinfo-deffn-formatting-property
3441 'texinfo-format-specialized-defun)
3442 (put 'defopt 'texinfo-deffn-formatting-property
3443 'texinfo-format-specialized-defun)
3444 (put 'defoptx 'texinfo-deffn-formatting-property
3445 'texinfo-format-specialized-defun)
3446 (defun texinfo-format-specialized-defun (parsed-args)
3447 ;; Specialized function-like or variable-like entity:
3448 ;; @defun name args In Info, `Function: Name ARGS'
3449 ;; @defmac name args In Info, `Macro: Name ARGS'
3450 ;; @defvar name In Info, `Variable: Name'
3451 ;; Use cdr of texinfo-defun-type to determine category:
3452 (let ((category (car (cdr texinfo-defun-type)))
3453 (name (car parsed-args))
3454 (args (cdr parsed-args)))
3455 (insert " -- " category ": " name)
3456 (while args
3457 (insert " "
3458 (if (= ?& (aref (car args) 0))
3459 (car args)
3460 (upcase (car args))))
3461 (setq args (cdr args)))))
3462
3463 ;; @deftypefn, @deftypevr: Generalized typed
3464 (put 'deftypefn 'texinfo-deffn-formatting-property 'texinfo-format-deftypefn)
3465 (put 'deftypefnx 'texinfo-deffn-formatting-property 'texinfo-format-deftypefn)
3466 (put 'deftypevr 'texinfo-deffn-formatting-property 'texinfo-format-deftypefn)
3467 (put 'deftypevrx 'texinfo-deffn-formatting-property 'texinfo-format-deftypefn)
3468 (defun texinfo-format-deftypefn (parsed-args)
3469 ;; Generalized typed-function-like or typed-variable-like entity:
3470 ;; @deftypefn category data-type name args...
3471 ;; In Info, `Category: data-type name args...'
3472 ;; @deftypevr category data-type name
3473 ;; In Info, `Category: data-type name'
3474 ;; Note: args in lower case, unless modified in command line.
3475 (let ((category (car parsed-args))
3476 (data-type (car (cdr parsed-args)))
3477 (name (car (cdr (cdr parsed-args))))
3478 (args (cdr (cdr (cdr parsed-args)))))
3479 (insert " -- " category ": " data-type " " name)
3480 (while args
3481 (insert " " (car args))
3482 (setq args (cdr args)))))
3483
3484 ;; @deftypefun, @deftypevar: Specialized typed
3485 (put 'deftypefun 'texinfo-deffn-formatting-property 'texinfo-format-deftypefun)
3486 (put 'deftypefunx 'texinfo-deffn-formatting-property
3487 'texinfo-format-deftypefun)
3488 (put 'deftypevar 'texinfo-deffn-formatting-property 'texinfo-format-deftypefun)
3489 (put 'deftypevarx 'texinfo-deffn-formatting-property
3490 'texinfo-format-deftypefun)
3491 (defun texinfo-format-deftypefun (parsed-args)
3492 ;; Specialized typed-function-like or typed-variable-like entity:
3493 ;; @deftypefun data-type name args...
3494 ;; In Info, `Function: data-type name ARGS'
3495 ;; @deftypevar data-type name
3496 ;; In Info, `Variable: data-type name'
3497 ;; Note: args in lower case, unless modified in command line.
3498 ;; Use cdr of texinfo-defun-type to determine category:
3499 (let ((category (car (cdr texinfo-defun-type)))
3500 (data-type (car parsed-args))
3501 (name (car (cdr parsed-args)))
3502 (args (cdr (cdr parsed-args))))
3503 (insert " -- " category ": " data-type " " name)
3504 (while args
3505 (insert " " (car args))
3506 (setq args (cdr args)))))
3507
3508 ;; @defop: Generalized object-oriented
3509 (put 'defop 'texinfo-deffn-formatting-property 'texinfo-format-defop)
3510 (put 'defopx 'texinfo-deffn-formatting-property 'texinfo-format-defop)
3511 (defun texinfo-format-defop (parsed-args)
3512 ;; Generalized object oriented entity:
3513 ;; @defop category class name args...
3514 ;; In Info, `Category on class: name ARG'
3515 ;; Note: args in upper case; use of `on'
3516 (let ((category (car parsed-args))
3517 (class (car (cdr parsed-args)))
3518 (name (car (cdr (cdr parsed-args))))
3519 (args (cdr (cdr (cdr parsed-args)))))
3520 (insert " -- " category " on " class ": " name)
3521 (while args
3522 (insert " " (upcase (car args)))
3523 (setq args (cdr args)))))
3524
3525 ;; @defcv: Generalized object-oriented
3526 (put 'defcv 'texinfo-deffn-formatting-property 'texinfo-format-defcv)
3527 (put 'defcvx 'texinfo-deffn-formatting-property 'texinfo-format-defcv)
3528 (defun texinfo-format-defcv (parsed-args)
3529 ;; Generalized object oriented entity:
3530 ;; @defcv category class name
3531 ;; In Info, `Category of class: name'
3532 ;; Note: args in upper case; use of `of'
3533 (let ((category (car parsed-args))
3534 (class (car (cdr parsed-args)))
3535 (name (car (cdr (cdr parsed-args))))
3536 (args (cdr (cdr (cdr parsed-args)))))
3537 (insert " -- " category " of " class ": " name)
3538 (while args
3539 (insert " " (upcase (car args)))
3540 (setq args (cdr args)))))
3541
3542 ;; @defmethod: Specialized object-oriented
3543 (put 'defmethod 'texinfo-deffn-formatting-property 'texinfo-format-defmethod)
3544 (put 'defmethodx 'texinfo-deffn-formatting-property 'texinfo-format-defmethod)
3545 (defun texinfo-format-defmethod (parsed-args)
3546 ;; Specialized object oriented entity:
3547 ;; @defmethod class name args...
3548 ;; In Info, `Method on class: name ARGS'
3549 ;; Note: args in upper case; use of `on'
3550 ;; Use cdr of texinfo-defun-type to determine category:
3551 (let ((category (car (cdr texinfo-defun-type)))
3552 (class (car parsed-args))
3553 (name (car (cdr parsed-args)))
3554 (args (cdr (cdr parsed-args))))
3555 (insert " -- " category " on " class ": " name)
3556 (while args
3557 (insert " " (upcase (car args)))
3558 (setq args (cdr args)))))
3559
3560 ;; @defivar: Specialized object-oriented
3561 (put 'defivar 'texinfo-deffn-formatting-property 'texinfo-format-defivar)
3562 (put 'defivarx 'texinfo-deffn-formatting-property 'texinfo-format-defivar)
3563 (defun texinfo-format-defivar (parsed-args)
3564 ;; Specialized object oriented entity:
3565 ;; @defivar class name
3566 ;; In Info, `Instance variable of class: name'
3567 ;; Note: args in upper case; use of `of'
3568 ;; Use cdr of texinfo-defun-type to determine category:
3569 (let ((category (car (cdr texinfo-defun-type)))
3570 (class (car parsed-args))
3571 (name (car (cdr parsed-args)))
3572 (args (cdr (cdr parsed-args))))
3573 (insert " -- " category " of " class ": " name)
3574 (while args
3575 (insert " " (upcase (car args)))
3576 (setq args (cdr args)))))
3577
3578 \f
3579 ;;; Indexing for definitions
3580
3581 ;; An index entry has three parts: the `entry proper', the node name, and the
3582 ;; line number. Depending on the which command is used, the entry is
3583 ;; formatted differently:
3584 ;;
3585 ;; @defun,
3586 ;; @defmac,
3587 ;; @defspec,
3588 ;; @defvar,
3589 ;; @defopt all use their 1st argument as the entry-proper
3590 ;;
3591 ;; @deffn,
3592 ;; @defvr,
3593 ;; @deftp
3594 ;; @deftypefun
3595 ;; @deftypevar all use their 2nd argument as the entry-proper
3596 ;;
3597 ;; @deftypefn,
3598 ;; @deftypevr both use their 3rd argument as the entry-proper
3599 ;;
3600 ;; @defmethod uses its 2nd and 1st arguments as an entry-proper
3601 ;; formatted: NAME on CLASS
3602
3603 ;; @defop uses its 3rd and 2nd arguments as an entry-proper
3604 ;; formatted: NAME on CLASS
3605 ;;
3606 ;; @defivar uses its 2nd and 1st arguments as an entry-proper
3607 ;; formatted: NAME of CLASS
3608 ;;
3609 ;; @defcv uses its 3rd and 2nd argument as an entry-proper
3610 ;; formatted: NAME of CLASS
3611
3612 (put 'defun 'texinfo-defun-indexing-property 'texinfo-index-defun)
3613 (put 'defunx 'texinfo-defun-indexing-property 'texinfo-index-defun)
3614 (put 'defmac 'texinfo-defun-indexing-property 'texinfo-index-defun)
3615 (put 'defmacx 'texinfo-defun-indexing-property 'texinfo-index-defun)
3616 (put 'defspec 'texinfo-defun-indexing-property 'texinfo-index-defun)
3617 (put 'defspecx 'texinfo-defun-indexing-property 'texinfo-index-defun)
3618 (put 'defvar 'texinfo-defun-indexing-property 'texinfo-index-defun)
3619 (put 'defvarx 'texinfo-defun-indexing-property 'texinfo-index-defun)
3620 (put 'defopt 'texinfo-defun-indexing-property 'texinfo-index-defun)
3621 (put 'defoptx 'texinfo-defun-indexing-property 'texinfo-index-defun)
3622 (defun texinfo-index-defun (parsed-args)
3623 ;; use 1st parsed-arg as entry-proper
3624 ;; `index-list' will be texinfo-findex or the like
3625 (let ((index-list (get texinfo-command-name 'texinfo-defun-index)))
3626 (set index-list
3627 (cons
3628 ;; Three elements: entry-proper, node-name, line-number
3629 (list
3630 (car parsed-args)
3631 texinfo-last-node
3632 ;; Region formatting may not provide last node position.
3633 (if texinfo-last-node-pos
3634 (1+ (count-lines texinfo-last-node-pos (point)))
3635 1))
3636 (symbol-value index-list)))))
3637
3638 (put 'deffn 'texinfo-defun-indexing-property 'texinfo-index-deffn)
3639 (put 'deffnx 'texinfo-defun-indexing-property 'texinfo-index-deffn)
3640 (put 'defvr 'texinfo-defun-indexing-property 'texinfo-index-deffn)
3641 (put 'defvrx 'texinfo-defun-indexing-property 'texinfo-index-deffn)
3642 (put 'deftp 'texinfo-defun-indexing-property 'texinfo-index-deffn)
3643 (put 'deftpx 'texinfo-defun-indexing-property 'texinfo-index-deffn)
3644 (put 'deftypefun 'texinfo-defun-indexing-property 'texinfo-index-deffn)
3645 (put 'deftypefunx 'texinfo-defun-indexing-property 'texinfo-index-deffn)
3646 (put 'deftypevar 'texinfo-defun-indexing-property 'texinfo-index-deffn)
3647 (put 'deftypevarx 'texinfo-defun-indexing-property 'texinfo-index-deffn)
3648 (defun texinfo-index-deffn (parsed-args)
3649 ;; use 2nd parsed-arg as entry-proper
3650 ;; `index-list' will be texinfo-findex or the like
3651 (let ((index-list (get texinfo-command-name 'texinfo-defun-index)))
3652 (set index-list
3653 (cons
3654 ;; Three elements: entry-proper, node-name, line-number
3655 (list
3656 (car (cdr parsed-args))
3657 texinfo-last-node
3658 ;; Region formatting may not provide last node position.
3659 (if texinfo-last-node-pos
3660 (1+ (count-lines texinfo-last-node-pos (point)))
3661 1))
3662 (symbol-value index-list)))))
3663
3664 (put 'deftypefn 'texinfo-defun-indexing-property 'texinfo-index-deftypefn)
3665 (put 'deftypefnx 'texinfo-defun-indexing-property 'texinfo-index-deftypefn)
3666 (put 'deftypevr 'texinfo-defun-indexing-property 'texinfo-index-deftypefn)
3667 (put 'deftypevrx 'texinfo-defun-indexing-property 'texinfo-index-deftypefn)
3668 (defun texinfo-index-deftypefn (parsed-args)
3669 ;; use 3rd parsed-arg as entry-proper
3670 ;; `index-list' will be texinfo-findex or the like
3671 (let ((index-list (get texinfo-command-name 'texinfo-defun-index)))
3672 (set index-list
3673 (cons
3674 ;; Three elements: entry-proper, node-name, line-number
3675 (list
3676 (car (cdr (cdr parsed-args)))
3677 texinfo-last-node
3678 ;; Region formatting may not provide last node position.
3679 (if texinfo-last-node-pos
3680 (1+ (count-lines texinfo-last-node-pos (point)))
3681 1))
3682 (symbol-value index-list)))))
3683
3684 (put 'defmethod 'texinfo-defun-indexing-property 'texinfo-index-defmethod)
3685 (put 'defmethodx 'texinfo-defun-indexing-property 'texinfo-index-defmethod)
3686 (defun texinfo-index-defmethod (parsed-args)
3687 ;; use 2nd on 1st parsed-arg as entry-proper
3688 ;; `index-list' will be texinfo-findex or the like
3689 (let ((index-list (get texinfo-command-name 'texinfo-defun-index)))
3690 (set index-list
3691 (cons
3692 ;; Three elements: entry-proper, node-name, line-number
3693 (list
3694 (format "%s on %s"
3695 (car (cdr parsed-args))
3696 (car parsed-args))
3697 texinfo-last-node
3698 ;; Region formatting may not provide last node position.
3699 (if texinfo-last-node-pos
3700 (1+ (count-lines texinfo-last-node-pos (point)))
3701 1))
3702 (symbol-value index-list)))))
3703
3704 (put 'defop 'texinfo-defun-indexing-property 'texinfo-index-defop)
3705 (put 'defopx 'texinfo-defun-indexing-property 'texinfo-index-defop)
3706 (defun texinfo-index-defop (parsed-args)
3707 ;; use 3rd on 2nd parsed-arg as entry-proper
3708 ;; `index-list' will be texinfo-findex or the like
3709 (let ((index-list (get texinfo-command-name 'texinfo-defun-index)))
3710 (set index-list
3711 (cons
3712 ;; Three elements: entry-proper, node-name, line-number
3713 (list
3714 (format "%s on %s"
3715 (car (cdr (cdr parsed-args)))
3716 (car (cdr parsed-args)))
3717 texinfo-last-node
3718 ;; Region formatting may not provide last node position.
3719 (if texinfo-last-node-pos
3720 (1+ (count-lines texinfo-last-node-pos (point)))
3721 1))
3722 (symbol-value index-list)))))
3723
3724 (put 'defivar 'texinfo-defun-indexing-property 'texinfo-index-defivar)
3725 (put 'defivarx 'texinfo-defun-indexing-property 'texinfo-index-defivar)
3726 (defun texinfo-index-defivar (parsed-args)
3727 ;; use 2nd of 1st parsed-arg as entry-proper
3728 ;; `index-list' will be texinfo-findex or the like
3729 (let ((index-list (get texinfo-command-name 'texinfo-defun-index)))
3730 (set index-list
3731 (cons
3732 ;; Three elements: entry-proper, node-name, line-number
3733 (list
3734 (format "%s of %s"
3735 (car (cdr parsed-args))
3736 (car parsed-args))
3737 texinfo-last-node
3738 ;; Region formatting may not provide last node position.
3739 (if texinfo-last-node-pos
3740 (1+ (count-lines texinfo-last-node-pos (point)))
3741 1))
3742 (symbol-value index-list)))))
3743
3744 (put 'defcv 'texinfo-defun-indexing-property 'texinfo-index-defcv)
3745 (put 'defcvx 'texinfo-defun-indexing-property 'texinfo-index-defcv)
3746 (defun texinfo-index-defcv (parsed-args)
3747 ;; use 3rd of 2nd parsed-arg as entry-proper
3748 ;; `index-list' will be texinfo-findex or the like
3749 (let ((index-list (get texinfo-command-name 'texinfo-defun-index)))
3750 (set index-list
3751 (cons
3752 ;; Three elements: entry-proper, node-name, line-number
3753 (list
3754 (format "%s of %s"
3755 (car (cdr (cdr parsed-args)))
3756 (car (cdr parsed-args)))
3757 texinfo-last-node
3758 ;; Region formatting may not provide last node position.
3759 (if texinfo-last-node-pos
3760 (1+ (count-lines texinfo-last-node-pos (point)))
3761 1))
3762 (symbol-value index-list)))))
3763
3764 \f
3765 ;;; Properties for definitions
3766
3767 ;; Each definition command has six properties:
3768 ;;
3769 ;; 1. texinfo-deffn-formatting-property to format definition line
3770 ;; 2. texinfo-defun-indexing-property to create index entry
3771 ;; 3. texinfo-format formatting command
3772 ;; 4. texinfo-end end formatting command
3773 ;; 5. texinfo-defun-type type of deffn to format
3774 ;; 6. texinfo-defun-index type of index to use
3775 ;;
3776 ;; The `x' forms of each definition command are used for the second
3777 ;; and subsequent header lines.
3778
3779 ;; The texinfo-deffn-formatting-property and texinfo-defun-indexing-property
3780 ;; are listed just before the appropriate formatting and indexing commands.
3781
3782 (put 'deffn 'texinfo-format 'texinfo-format-defun)
3783 (put 'deffnx 'texinfo-format 'texinfo-format-defunx)
3784 (put 'deffn 'texinfo-end 'texinfo-end-defun)
3785 (put 'deffn 'texinfo-defun-type '('deffn-type nil))
3786 (put 'deffnx 'texinfo-defun-type '('deffn-type nil))
3787 (put 'deffn 'texinfo-defun-index 'texinfo-findex)
3788 (put 'deffnx 'texinfo-defun-index 'texinfo-findex)
3789
3790 (put 'defun 'texinfo-format 'texinfo-format-defun)
3791 (put 'defunx 'texinfo-format 'texinfo-format-defunx)
3792 (put 'defun 'texinfo-end 'texinfo-end-defun)
3793 (put 'defun 'texinfo-defun-type '('defun-type "Function"))
3794 (put 'defunx 'texinfo-defun-type '('defun-type "Function"))
3795 (put 'defun 'texinfo-defun-index 'texinfo-findex)
3796 (put 'defunx 'texinfo-defun-index 'texinfo-findex)
3797
3798 (put 'defmac 'texinfo-format 'texinfo-format-defun)
3799 (put 'defmacx 'texinfo-format 'texinfo-format-defunx)
3800 (put 'defmac 'texinfo-end 'texinfo-end-defun)
3801 (put 'defmac 'texinfo-defun-type '('defun-type "Macro"))
3802 (put 'defmacx 'texinfo-defun-type '('defun-type "Macro"))
3803 (put 'defmac 'texinfo-defun-index 'texinfo-findex)
3804 (put 'defmacx 'texinfo-defun-index 'texinfo-findex)
3805
3806 (put 'defspec 'texinfo-format 'texinfo-format-defun)
3807 (put 'defspecx 'texinfo-format 'texinfo-format-defunx)
3808 (put 'defspec 'texinfo-end 'texinfo-end-defun)
3809 (put 'defspec 'texinfo-defun-type '('defun-type "Special form"))
3810 (put 'defspecx 'texinfo-defun-type '('defun-type "Special form"))
3811 (put 'defspec 'texinfo-defun-index 'texinfo-findex)
3812 (put 'defspecx 'texinfo-defun-index 'texinfo-findex)
3813
3814 (put 'defvr 'texinfo-format 'texinfo-format-defun)
3815 (put 'defvrx 'texinfo-format 'texinfo-format-defunx)
3816 (put 'defvr 'texinfo-end 'texinfo-end-defun)
3817 (put 'defvr 'texinfo-defun-type '('deffn-type nil))
3818 (put 'defvrx 'texinfo-defun-type '('deffn-type nil))
3819 (put 'defvr 'texinfo-defun-index 'texinfo-vindex)
3820 (put 'defvrx 'texinfo-defun-index 'texinfo-vindex)
3821
3822 (put 'defvar 'texinfo-format 'texinfo-format-defun)
3823 (put 'defvarx 'texinfo-format 'texinfo-format-defunx)
3824 (put 'defvar 'texinfo-end 'texinfo-end-defun)
3825 (put 'defvar 'texinfo-defun-type '('defun-type "Variable"))
3826 (put 'defvarx 'texinfo-defun-type '('defun-type "Variable"))
3827 (put 'defvar 'texinfo-defun-index 'texinfo-vindex)
3828 (put 'defvarx 'texinfo-defun-index 'texinfo-vindex)
3829
3830 (put 'defconst 'texinfo-format 'texinfo-format-defun)
3831 (put 'defconstx 'texinfo-format 'texinfo-format-defunx)
3832 (put 'defconst 'texinfo-end 'texinfo-end-defun)
3833 (put 'defconst 'texinfo-defun-type '('defun-type "Constant"))
3834 (put 'defconstx 'texinfo-defun-type '('defun-type "Constant"))
3835 (put 'defconst 'texinfo-defun-index 'texinfo-vindex)
3836 (put 'defconstx 'texinfo-defun-index 'texinfo-vindex)
3837
3838 (put 'defcmd 'texinfo-format 'texinfo-format-defun)
3839 (put 'defcmdx 'texinfo-format 'texinfo-format-defunx)
3840 (put 'defcmd 'texinfo-end 'texinfo-end-defun)
3841 (put 'defcmd 'texinfo-defun-type '('defun-type "Command"))
3842 (put 'defcmdx 'texinfo-defun-type '('defun-type "Command"))
3843 (put 'defcmd 'texinfo-defun-index 'texinfo-findex)
3844 (put 'defcmdx 'texinfo-defun-index 'texinfo-findex)
3845
3846 (put 'defopt 'texinfo-format 'texinfo-format-defun)
3847 (put 'defoptx 'texinfo-format 'texinfo-format-defunx)
3848 (put 'defopt 'texinfo-end 'texinfo-end-defun)
3849 (put 'defopt 'texinfo-defun-type '('defun-type "User Option"))
3850 (put 'defoptx 'texinfo-defun-type '('defun-type "User Option"))
3851 (put 'defopt 'texinfo-defun-index 'texinfo-vindex)
3852 (put 'defoptx 'texinfo-defun-index 'texinfo-vindex)
3853
3854 (put 'deftp 'texinfo-format 'texinfo-format-defun)
3855 (put 'deftpx 'texinfo-format 'texinfo-format-defunx)
3856 (put 'deftp 'texinfo-end 'texinfo-end-defun)
3857 (put 'deftp 'texinfo-defun-type '('deftp-type nil))
3858 (put 'deftpx 'texinfo-defun-type '('deftp-type nil))
3859 (put 'deftp 'texinfo-defun-index 'texinfo-tindex)
3860 (put 'deftpx 'texinfo-defun-index 'texinfo-tindex)
3861
3862 ;;; Object-oriented stuff is a little hairier.
3863
3864 (put 'defop 'texinfo-format 'texinfo-format-defun)
3865 (put 'defopx 'texinfo-format 'texinfo-format-defunx)
3866 (put 'defop 'texinfo-end 'texinfo-end-defun)
3867 (put 'defop 'texinfo-defun-type '('defop-type nil))
3868 (put 'defopx 'texinfo-defun-type '('defop-type nil))
3869 (put 'defop 'texinfo-defun-index 'texinfo-findex)
3870 (put 'defopx 'texinfo-defun-index 'texinfo-findex)
3871
3872 (put 'defmethod 'texinfo-format 'texinfo-format-defun)
3873 (put 'defmethodx 'texinfo-format 'texinfo-format-defunx)
3874 (put 'defmethod 'texinfo-end 'texinfo-end-defun)
3875 (put 'defmethod 'texinfo-defun-type '('defmethod-type "Method"))
3876 (put 'defmethodx 'texinfo-defun-type '('defmethod-type "Method"))
3877 (put 'defmethod 'texinfo-defun-index 'texinfo-findex)
3878 (put 'defmethodx 'texinfo-defun-index 'texinfo-findex)
3879
3880 (put 'defcv 'texinfo-format 'texinfo-format-defun)
3881 (put 'defcvx 'texinfo-format 'texinfo-format-defunx)
3882 (put 'defcv 'texinfo-end 'texinfo-end-defun)
3883 (put 'defcv 'texinfo-defun-type '('defop-type nil))
3884 (put 'defcvx 'texinfo-defun-type '('defop-type nil))
3885 (put 'defcv 'texinfo-defun-index 'texinfo-vindex)
3886 (put 'defcvx 'texinfo-defun-index 'texinfo-vindex)
3887
3888 (put 'defivar 'texinfo-format 'texinfo-format-defun)
3889 (put 'defivarx 'texinfo-format 'texinfo-format-defunx)
3890 (put 'defivar 'texinfo-end 'texinfo-end-defun)
3891 (put 'defivar 'texinfo-defun-type '('defmethod-type "Instance variable"))
3892 (put 'defivarx 'texinfo-defun-type '('defmethod-type "Instance variable"))
3893 (put 'defivar 'texinfo-defun-index 'texinfo-vindex)
3894 (put 'defivarx 'texinfo-defun-index 'texinfo-vindex)
3895
3896 ;;; Typed functions and variables
3897
3898 (put 'deftypefn 'texinfo-format 'texinfo-format-defun)
3899 (put 'deftypefnx 'texinfo-format 'texinfo-format-defunx)
3900 (put 'deftypefn 'texinfo-end 'texinfo-end-defun)
3901 (put 'deftypefn 'texinfo-defun-type '('deftypefn-type nil))
3902 (put 'deftypefnx 'texinfo-defun-type '('deftypefn-type nil))
3903 (put 'deftypefn 'texinfo-defun-index 'texinfo-findex)
3904 (put 'deftypefnx 'texinfo-defun-index 'texinfo-findex)
3905
3906 (put 'deftypefun 'texinfo-format 'texinfo-format-defun)
3907 (put 'deftypefunx 'texinfo-format 'texinfo-format-defunx)
3908 (put 'deftypefun 'texinfo-end 'texinfo-end-defun)
3909 (put 'deftypefun 'texinfo-defun-type '('deftypefun-type "Function"))
3910 (put 'deftypefunx 'texinfo-defun-type '('deftypefun-type "Function"))
3911 (put 'deftypefun 'texinfo-defun-index 'texinfo-findex)
3912 (put 'deftypefunx 'texinfo-defun-index 'texinfo-findex)
3913
3914 (put 'deftypevr 'texinfo-format 'texinfo-format-defun)
3915 (put 'deftypevrx 'texinfo-format 'texinfo-format-defunx)
3916 (put 'deftypevr 'texinfo-end 'texinfo-end-defun)
3917 (put 'deftypevr 'texinfo-defun-type '('deftypefn-type nil))
3918 (put 'deftypevrx 'texinfo-defun-type '('deftypefn-type nil))
3919 (put 'deftypevr 'texinfo-defun-index 'texinfo-vindex)
3920 (put 'deftypevrx 'texinfo-defun-index 'texinfo-vindex)
3921
3922 (put 'deftypevar 'texinfo-format 'texinfo-format-defun)
3923 (put 'deftypevarx 'texinfo-format 'texinfo-format-defunx)
3924 (put 'deftypevar 'texinfo-end 'texinfo-end-defun)
3925 (put 'deftypevar 'texinfo-defun-type '('deftypevar-type "Variable"))
3926 (put 'deftypevarx 'texinfo-defun-type '('deftypevar-type "Variable"))
3927 (put 'deftypevar 'texinfo-defun-index 'texinfo-vindex)
3928 (put 'deftypevarx 'texinfo-defun-index 'texinfo-vindex)
3929
3930 \f
3931 ;;; @set, @clear, @ifset, @ifclear
3932
3933 ;; If a flag is set with @set FLAG, then text between @ifset and @end
3934 ;; ifset is formatted normally, but if the flag is cleared with
3935 ;; @clear FLAG, then the text is not formatted; it is ignored.
3936
3937 ;; If a flag is cleared with @clear FLAG, then text between @ifclear
3938 ;; and @end ifclear is formatted normally, but if the flag is set with
3939 ;; @set FLAG, then the text is not formatted; it is ignored. @ifclear
3940 ;; is the opposite of @ifset.
3941
3942 ;; If a flag is set to a string with @set FLAG,
3943 ;; replace @value{FLAG} with the string.
3944 ;; If a flag with a value is cleared,
3945 ;; @value{FLAG} is invalid,
3946 ;; as if there had never been any @set FLAG previously.
3947
3948 (put 'clear 'texinfo-format 'texinfo-clear)
3949 (defun texinfo-clear ()
3950 "Clear the value of the flag."
3951 (let* ((arg (texinfo-parse-arg-discard))
3952 (flag (car (read-from-string arg)))
3953 (value (substring arg (cdr (read-from-string arg)))))
3954 (put flag 'texinfo-whether-setp 'flag-cleared)
3955 (put flag 'texinfo-set-value "")))
3956
3957 (put 'set 'texinfo-format 'texinfo-set)
3958 (defun texinfo-set ()
3959 "Set the value of the flag, optionally to a string.
3960 The command `@set foo This is a string.'
3961 sets flag foo to the value: `This is a string.'
3962 The command `@value{foo}' expands to the value."
3963 (let* ((arg (texinfo-parse-arg-discard))
3964 (flag (car (read-from-string arg)))
3965 (value (substring arg (cdr (read-from-string arg)))))
3966 (if (string-match "^[ \t]+" value)
3967 (setq value (substring value (match-end 0))))
3968 (put flag 'texinfo-whether-setp 'flag-set)
3969 (put flag 'texinfo-set-value value)))
3970
3971 (put 'value 'texinfo-format 'texinfo-value)
3972 (defun texinfo-value ()
3973 "Insert the string to which the flag is set.
3974 The command `@set foo This is a string.'
3975 sets flag foo to the value: `This is a string.'
3976 The command `@value{foo}' expands to the value."
3977 (let ((arg (texinfo-parse-arg-discard)))
3978 (cond ((and
3979 (eq (get (car (read-from-string arg)) 'texinfo-whether-setp)
3980 'flag-set)
3981 (get (car (read-from-string arg)) 'texinfo-set-value))
3982 (insert (get (car (read-from-string arg)) 'texinfo-set-value)))
3983 ((eq (get (car (read-from-string arg)) 'texinfo-whether-setp)
3984 'flag-cleared)
3985 (insert (format "{No value for \"%s\"}" arg)))
3986 ((eq (get (car (read-from-string arg)) 'texinfo-whether-setp) nil)
3987 (insert (format "{No value for \"%s\"}" arg))))))
3988
3989 (put 'ifset 'texinfo-end 'texinfo-discard-command)
3990 (put 'ifset 'texinfo-format 'texinfo-if-set)
3991 (defun texinfo-if-set ()
3992 "If set, continue formatting; else do not format region up to @end ifset."
3993 (let ((arg (texinfo-parse-arg-discard)))
3994 (cond
3995 ((eq (get (car (read-from-string arg)) 'texinfo-whether-setp)
3996 'flag-set)
3997 ;; Format the text (i.e., do not remove it); do nothing here.
3998 ())
3999 ((eq (get (car (read-from-string arg)) 'texinfo-whether-setp)
4000 'flag-cleared)
4001 ;; Clear region (i.e., cause the text to be ignored).
4002 (delete-region texinfo-command-start
4003 (re-search-forward "@end ifset[ \t]*\n")))
4004 ((eq (get (car (read-from-string arg)) 'texinfo-whether-setp)
4005 nil)
4006 ;; In this case flag is neither set nor cleared.
4007 ;; Act as if set, i.e. do nothing.
4008 ()))))
4009
4010 (put 'ifclear 'texinfo-end 'texinfo-discard-command)
4011 (put 'ifclear 'texinfo-format 'texinfo-if-clear)
4012 (defun texinfo-if-clear ()
4013 "If clear, continue formatting; if set, do not format up to @end ifset."
4014 (let ((arg (texinfo-parse-arg-discard)))
4015 (cond
4016 ((eq (get (car (read-from-string arg)) 'texinfo-whether-setp)
4017 'flag-set)
4018 ;; Clear region (i.e., cause the text to be ignored).
4019 (delete-region texinfo-command-start
4020 (re-search-forward "@end ifclear[ \t]*\n")))
4021 ((eq (get (car (read-from-string arg)) 'texinfo-whether-setp)
4022 'flag-cleared)
4023 ;; Format the text (i.e., do not remove it); do nothing here.
4024 ())
4025 ((eq (get (car (read-from-string arg)) 'texinfo-whether-setp)
4026 nil)
4027 ;; In this case flag is neither set nor cleared.
4028 ;; Act as if clear, i.e. do nothing.
4029 ()))))
4030 \f
4031 ;;; @ifeq
4032
4033 (put 'ifeq 'texinfo-format 'texinfo-format-ifeq)
4034 (defun texinfo-format-ifeq ()
4035 "If ARG1 and ARG2 caselessly string compare to same string, perform COMMAND.
4036 Otherwise produces no output.
4037
4038 Thus:
4039 @ifeq{ arg1 , arg1 , @code{foo}} bar
4040
4041 ==> `foo' bar.
4042 but
4043 @ifeq{ arg1 , arg2 , @code{foo}} bar
4044
4045 ==> bar
4046
4047 Note that the Texinfo command and its arguments must be arguments to
4048 the @ifeq command."
4049 ;; compare-buffer-substrings does not exist in version 18; don't use
4050 (goto-char texinfo-command-end)
4051 (let* ((case-fold-search t)
4052 (stop (save-excursion (forward-sexp 1) (point)))
4053 start end
4054 ;; @ifeq{arg1, arg2, @command{optional-args}}
4055 (arg1
4056 (progn
4057 (forward-char 1)
4058 (skip-chars-forward " ")
4059 (setq start (point))
4060 (search-forward "," stop t)
4061 (skip-chars-backward ", ")
4062 (buffer-substring-no-properties start (point))))
4063 (arg2
4064 (progn
4065 (search-forward "," stop t)
4066 (skip-chars-forward " ")
4067 (setq start (point))
4068 (search-forward "," stop t)
4069 (skip-chars-backward ", ")
4070 (buffer-substring-no-properties start (point))))
4071 (texinfo-command
4072 (progn
4073 (search-forward "," stop t)
4074 (skip-chars-forward " ")
4075 (setq start (point))
4076 (goto-char (1- stop))
4077 (skip-chars-backward " ")
4078 (buffer-substring-no-properties start (point)))))
4079 (delete-region texinfo-command-start stop)
4080 (if (equal arg1 arg2)
4081 (insert texinfo-command))
4082 (goto-char texinfo-command-start)))
4083
4084 \f
4085 ;;; Process included files: `@include' command
4086
4087 ;; Updated 19 October 1990
4088 ;; In the original version, include files were ignored by Info but
4089 ;; incorporated in to the printed manual. To make references to the
4090 ;; included file, the Texinfo source file has to refer to the included
4091 ;; files using the `(filename)nodename' format for referring to other
4092 ;; Info files. Also, the included files had to be formatted on their
4093 ;; own. It was just like they were another file.
4094
4095 ;; Currently, include files are inserted into the buffer that is
4096 ;; formatted for Info. If large, the resulting info file is split and
4097 ;; tagified. For current include files to work, the master menu must
4098 ;; refer to all the nodes, and the highest level nodes in the include
4099 ;; files must have the correct next, prev, and up pointers.
4100
4101 ;; The included file may have an @setfilename and even an @settitle,
4102 ;; but not an `\input texinfo' line.
4103
4104 ;; Updated 24 March 1993
4105 ;; In order for @raisesections and @lowersections to work, included
4106 ;; files must be inserted into the buffer holding the outer file
4107 ;; before other Info formatting takes place. So @include is no longer
4108 ;; is treated like other @-commands.
4109 (put 'include 'texinfo-format 'texinfo-format-noop)
4110
4111 ;; Original definition:
4112 ;; (defun texinfo-format-include ()
4113 ;; (let ((filename (texinfo-parse-arg-discard))
4114 ;; (default-directory input-directory)
4115 ;; subindex)
4116 ;; (setq subindex
4117 ;; (save-excursion
4118 ;; (progn (find-file
4119 ;; (cond ((file-readable-p (concat filename ".texinfo"))
4120 ;; (concat filename ".texinfo"))
4121 ;; ((file-readable-p (concat filename ".texi"))
4122 ;; (concat filename ".texi"))
4123 ;; ((file-readable-p (concat filename ".tex"))
4124 ;; (concat filename ".tex"))
4125 ;; ((file-readable-p filename)
4126 ;; filename)
4127 ;; (t (error "@include'd file %s not found"
4128 ;; filename))))
4129 ;; (texinfo-format-buffer-1))))
4130 ;; (texinfo-subindex 'texinfo-vindex (car subindex) (nth 1 subindex))
4131 ;; (texinfo-subindex 'texinfo-findex (car subindex) (nth 2 subindex))
4132 ;; (texinfo-subindex 'texinfo-cindex (car subindex) (nth 3 subindex))
4133 ;; (texinfo-subindex 'texinfo-pindex (car subindex) (nth 4 subindex))
4134 ;; (texinfo-subindex 'texinfo-tindex (car subindex) (nth 5 subindex))
4135 ;; (texinfo-subindex 'texinfo-kindex (car subindex) (nth 6 subindex))))
4136 ;;
4137 ;;(defun texinfo-subindex (indexvar file content)
4138 ;; (set indexvar (cons (list 'recurse file content)
4139 ;; (symbol-value indexvar))))
4140
4141 ;; Second definition:
4142 ;; (put 'include 'texinfo-format 'texinfo-format-include)
4143 ;; (defun texinfo-format-include ()
4144 ;; (let ((filename (concat input-directory
4145 ;; (texinfo-parse-arg-discard)))
4146 ;; (default-directory input-directory))
4147 ;; (message "Reading: %s" filename)
4148 ;; (save-excursion
4149 ;; (save-restriction
4150 ;; (narrow-to-region
4151 ;; (point)
4152 ;; (+ (point) (car (cdr (insert-file-contents filename)))))
4153 ;; (goto-char (point-min))
4154 ;; (texinfo-append-refill)
4155 ;; (texinfo-format-convert (point-min) (point-max))))
4156 ;; (setq last-input-buffer input-buffer) ; to bypass setfilename
4157 ;; ))
4158
4159 \f
4160 ;;; Numerous commands do nothing in Info
4161 ;; These commands are defined in texinfo.tex for printed output.
4162
4163 \f
4164 ;;; various noops, such as @b{foo}, that take arguments in braces
4165
4166 (put 'b 'texinfo-format 'texinfo-format-noop)
4167 (put 'i 'texinfo-format 'texinfo-format-noop)
4168 (put 'r 'texinfo-format 'texinfo-format-noop)
4169 (put 't 'texinfo-format 'texinfo-format-noop)
4170 (put 'w 'texinfo-format 'texinfo-format-noop)
4171 (put 'asis 'texinfo-format 'texinfo-format-noop)
4172 (put 'dmn 'texinfo-format 'texinfo-format-noop)
4173 (put 'math 'texinfo-format 'texinfo-format-noop)
4174 (put 'titlefont 'texinfo-format 'texinfo-format-noop)
4175 (defun texinfo-format-noop ()
4176 (insert (texinfo-parse-arg-discard))
4177 (goto-char texinfo-command-start))
4178
4179 ;; @hyphenation command discards an argument within braces
4180 (put 'hyphenation 'texinfo-format 'texinfo-discard-command-and-arg)
4181 (defun texinfo-discard-command-and-arg ()
4182 "Discard both @-command and its argument in braces."
4183 (goto-char texinfo-command-end)
4184 (forward-list 1)
4185 (setq texinfo-command-end (point))
4186 (delete-region texinfo-command-start texinfo-command-end))
4187
4188 \f
4189 ;;; Do nothing commands, such as @smallbook, that have no args and no braces
4190 ;; These must appear on a line of their own
4191
4192 (put 'bye 'texinfo-format 'texinfo-discard-line)
4193 (put 'smallbook 'texinfo-format 'texinfo-discard-line)
4194 (put 'finalout 'texinfo-format 'texinfo-discard-line)
4195 (put 'overfullrule 'texinfo-format 'texinfo-discard-line)
4196 (put 'smallbreak 'texinfo-format 'texinfo-discard-line)
4197 (put 'medbreak 'texinfo-format 'texinfo-discard-line)
4198 (put 'bigbreak 'texinfo-format 'texinfo-discard-line)
4199 (put 'afourpaper 'texinfo-format 'texinfo-discard-line)
4200 (put 'afivepaper 'texinfo-format 'texinfo-discard-line)
4201 (put 'afourlatex 'texinfo-format 'texinfo-discard-line)
4202 (put 'afourwide 'texinfo-format 'texinfo-discard-line)
4203
4204 \f
4205 ;;; These noop commands discard the rest of the line.
4206
4207 (put 'c 'texinfo-format 'texinfo-discard-line-with-args)
4208 (put 'comment 'texinfo-format 'texinfo-discard-line-with-args)
4209 (put 'contents 'texinfo-format 'texinfo-discard-line-with-args)
4210 (put 'group 'texinfo-end 'texinfo-discard-line-with-args)
4211 (put 'group 'texinfo-format 'texinfo-discard-line-with-args)
4212 (put 'headings 'texinfo-format 'texinfo-discard-line-with-args)
4213 (put 'setchapterstyle 'texinfo-format 'texinfo-discard-line-with-args)
4214 (put 'hsize 'texinfo-format 'texinfo-discard-line-with-args)
4215 (put 'itemindent 'texinfo-format 'texinfo-discard-line-with-args)
4216 (put 'lispnarrowing 'texinfo-format 'texinfo-discard-line-with-args)
4217 (put 'need 'texinfo-format 'texinfo-discard-line-with-args)
4218 (put 'nopara 'texinfo-format 'texinfo-discard-line-with-args)
4219
4220 ;; @novalidate suppresses cross-reference checking and auxiliary file
4221 ;; creation with TeX. The Info-validate command checks that every
4222 ;; node pointer points to an existing node. Since this Info command
4223 ;; is not invoked automatically, the @novalidate command is irrelevant
4224 ;; and not supported by texinfmt.el
4225 (put 'novalidate 'texinfo-format 'texinfo-discard-line-with-args)
4226
4227 (put 'page 'texinfo-format 'texinfo-discard-line-with-args)
4228 (put 'pagesizes 'texinfo-format 'texinfo-discard-line-with-args)
4229 (put 'parindent 'texinfo-format 'texinfo-discard-line-with-args)
4230 (put 'setchapternewpage 'texinfo-format 'texinfo-discard-line-with-args)
4231 (put 'setq 'texinfo-format 'texinfo-discard-line-with-args)
4232
4233 (put 'setcontentsaftertitlepage
4234 'texinfo-format 'texinfo-discard-line-with-args)
4235 (put 'setshortcontentsaftertitlepage
4236 'texinfo-format 'texinfo-discard-line-with-args)
4237
4238 (put 'settitle 'texinfo-format 'texinfo-discard-line-with-args)
4239 (put 'setx 'texinfo-format 'texinfo-discard-line-with-args)
4240 (put 'shortcontents 'texinfo-format 'texinfo-discard-line-with-args)
4241 (put 'shorttitlepage 'texinfo-format 'texinfo-discard-line-with-args)
4242 (put 'summarycontents 'texinfo-format 'texinfo-discard-line-with-args)
4243 (put 'input 'texinfo-format 'texinfo-discard-line-with-args)
4244
4245 (put 'documentlanguage 'texinfo-format 'texinfo-discard-line-with-args)
4246 (put 'documentencoding 'texinfo-format 'texinfo-discard-line-with-args)
4247
4248
4249 \f
4250 ;;; Some commands cannot be handled
4251
4252 (defun texinfo-unsupported ()
4253 (error "%s is not handled by texinfo"
4254 (buffer-substring-no-properties texinfo-command-start texinfo-command-end)))
4255 \f
4256 ;;; Batch formatting
4257
4258 (defun batch-texinfo-format ()
4259 "Run `texinfo-format-buffer' on the files remaining on the command line.
4260 Must be used only with -batch, and kills Emacs on completion.
4261 Each file will be processed even if an error occurred previously.
4262 For example, invoke
4263 \"emacs -batch -l texinfmt -f batch-texinfo-format $docs/ ~/*.texinfo\"."
4264 (if (not noninteractive)
4265 (error "batch-texinfo-format may only be used -batch"))
4266 (let ((version-control t)
4267 (auto-save-default nil)
4268 (find-file-run-dired nil)
4269 (kept-old-versions 259259)
4270 (kept-new-versions 259259))
4271 (let ((error 0)
4272 file
4273 (files ()))
4274 (while command-line-args-left
4275 (setq file (expand-file-name (car command-line-args-left)))
4276 (cond ((not (file-exists-p file))
4277 (message ">> %s does not exist!" file)
4278 (setq error 1
4279 command-line-args-left (cdr command-line-args-left)))
4280 ((file-directory-p file)
4281 (setq command-line-args-left
4282 (nconc (directory-files file)
4283 (cdr command-line-args-left))))
4284 (t
4285 (push file files)
4286 (setq command-line-args-left (cdr command-line-args-left)))))
4287 (while files
4288 (setq file (car files)
4289 files (cdr files))
4290 (condition-case err
4291 (progn
4292 (if buffer-file-name (kill-buffer (current-buffer)))
4293 (find-file file)
4294 (buffer-disable-undo (current-buffer))
4295 (set-buffer-modified-p nil)
4296 (texinfo-mode)
4297 (message "texinfo formatting %s..." file)
4298 (texinfo-format-buffer nil)
4299 (if (buffer-modified-p)
4300 (progn (message "Saving modified %s" (buffer-file-name))
4301 (save-buffer))))
4302 (error
4303 (message ">> Error: %s" (prin1-to-string err))
4304 (message ">> point at")
4305 (let ((s (buffer-substring-no-properties (point)
4306 (min (+ (point) 100)
4307 (point-max))))
4308 (tem 0))
4309 (while (setq tem (string-match "\n+" s tem))
4310 (setq s (concat (substring s 0 (match-beginning 0))
4311 "\n>> "
4312 (substring s (match-end 0)))
4313 tem (1+ tem)))
4314 (message ">> %s" s))
4315 (setq error 1))))
4316 (kill-emacs error))))
4317
4318 \f
4319 ;;; Place `provide' at end of file.
4320 (provide 'texinfmt)
4321
4322 ;;; texinfmt.el ends here