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3afbc435 | 1 | ;;; reftex-parse.el --- parser functions for RefTeX |
f2e3589a | 2 | |
ab422c4d | 3 | ;; Copyright (C) 1997-2013 Free Software Foundation, Inc. |
3ba2590f | 4 | |
6fbeb429 | 5 | ;; Author: Carsten Dominik <dominik@science.uva.nl> |
ce545621 | 6 | ;; Maintainer: auctex-devel@gnu.org |
3ba2590f RS |
7 | |
8 | ;; This file is part of GNU Emacs. | |
9 | ||
1fecc8fe | 10 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
3ba2590f | 11 | ;; it under the terms of the GNU General Public License as published by |
1fecc8fe GM |
12 | ;; the Free Software Foundation, either version 3 of the License, or |
13 | ;; (at your option) any later version. | |
3ba2590f RS |
14 | |
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
1fecc8fe | 21 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
1a9461d0 | 22 | |
3afbc435 PJ |
23 | ;;; Commentary: |
24 | ||
25 | ;;; Code: | |
26 | ||
7c4d13cc | 27 | (eval-when-compile (require 'cl)) |
4f595e15 | 28 | |
1a9461d0 CD |
29 | (require 'reftex) |
30 | ||
31 | (defmacro reftex-with-special-syntax (&rest body) | |
32 | `(let ((saved-syntax (syntax-table))) | |
33 | (unwind-protect | |
3666daf6 CD |
34 | (progn |
35 | (set-syntax-table reftex-syntax-table) | |
36 | (let ((case-fold-search nil)) | |
37 | ,@body)) | |
1a9461d0 CD |
38 | (set-syntax-table saved-syntax)))) |
39 | ||
40 | (defun reftex-parse-one () | |
41 | "Re-parse this file." | |
42 | (interactive) | |
43 | (let ((reftex-enable-partial-scans t)) | |
44 | (reftex-access-scan-info '(4)))) | |
45 | ||
46 | (defun reftex-parse-all () | |
47 | "Re-parse entire document." | |
48 | (interactive) | |
49 | (reftex-access-scan-info '(16))) | |
50 | ||
51 | (defun reftex-do-parse (rescan &optional file) | |
79d7167f TH |
52 | "Do a document rescan. |
53 | When allowed, do only a partial scan from FILE." | |
1a9461d0 CD |
54 | |
55 | ;; Normalize the rescan argument | |
56 | (setq rescan (cond ((eq rescan t) t) | |
57 | ((eq rescan 1) 1) | |
58 | ((equal rescan '(4)) t) | |
59 | ((equal rescan '(16)) 1) | |
60 | (t 1))) | |
61 | ||
62 | ;; Partial scans only when allowed | |
63 | (unless reftex-enable-partial-scans | |
64 | (setq rescan 1)) | |
65 | ||
66 | ;; Do the scanning. | |
67 | ||
68 | (let* ((old-list (symbol-value reftex-docstruct-symbol)) | |
69 | (master (reftex-TeX-master-file)) | |
3666daf6 CD |
70 | (true-master (file-truename master)) |
71 | (master-dir (file-name-as-directory (file-name-directory master))) | |
1a9461d0 | 72 | (file (or file (buffer-file-name))) |
3666daf6 CD |
73 | (true-file (file-truename file)) |
74 | (bibview-cache (assq 'bibview-cache old-list)) | |
75 | (index-tags (cdr (assq 'index-tags old-list))) | |
1a9461d0 CD |
76 | from-file appendix docstruct tmp) |
77 | ||
78 | ;; Make sure replacement is really an option here | |
79 | (when (and (eq rescan t) | |
80 | (not (and (member (list 'bof file) old-list) | |
81 | (member (list 'eof file) old-list)))) | |
82 | ;; Scan whole document because no such file section exists | |
83 | (setq rescan 1)) | |
84 | (when (string= true-file true-master) | |
85 | ;; Scan whole document because this file is the master | |
86 | (setq rescan 1)) | |
87 | ||
88 | ;; From which file do we start? | |
89 | (setq from-file | |
90 | (cond ((eq rescan t) (or file master)) | |
91 | ((eq rescan 1) master) | |
92 | (t (error "This should not happen (reftex-do-parse)")))) | |
93 | ||
94 | ;; Reset index-tags if we scan everything | |
95 | (if (equal rescan 1) (setq index-tags nil)) | |
96 | ||
97 | ;; Find active toc entry and initialize section-numbers | |
98 | (setq reftex-active-toc (reftex-last-assoc-before-elt | |
3666daf6 CD |
99 | 'toc (list 'bof from-file) old-list) |
100 | appendix (reftex-last-assoc-before-elt | |
101 | 'appendix (list 'bof from-file) old-list)) | |
1a9461d0 CD |
102 | |
103 | (reftex-init-section-numbers reftex-active-toc appendix) | |
104 | ||
105 | (if (eq rescan 1) | |
106 | (message "Scanning entire document...") | |
107 | (message "Scanning document from %s..." from-file)) | |
108 | ||
109 | (reftex-with-special-syntax | |
110 | (save-window-excursion | |
111 | (save-excursion | |
3666daf6 CD |
112 | (unwind-protect |
113 | (setq docstruct | |
114 | (reftex-parse-from-file | |
115 | from-file docstruct master-dir)) | |
116 | (reftex-kill-temporary-buffers))))) | |
1a9461d0 CD |
117 | |
118 | (message "Scanning document... done") | |
119 | ||
120 | ;; Turn the list around. | |
121 | (setq docstruct (nreverse docstruct)) | |
122 | ||
123 | ;; Set or insert | |
124 | (setq docstruct (reftex-replace-label-list-segment | |
125 | old-list docstruct (eq rescan 1))) | |
126 | ||
127 | ;; Add all missing information | |
128 | (unless (assq 'label-numbers docstruct) | |
129 | (push (cons 'label-numbers nil) docstruct)) | |
130 | (unless (assq 'master-dir docstruct) | |
131 | (push (cons 'master-dir master-dir) docstruct)) | |
132 | (unless (assq 'bibview-cache docstruct) | |
133 | (push (cons 'bibview-cache (cdr bibview-cache)) docstruct)) | |
134 | (let* ((bof1 (memq (assq 'bof docstruct) docstruct)) | |
135 | (bof2 (assq 'bof (cdr bof1))) | |
136 | (is-multi (not (not (and bof1 bof2)))) | |
137 | (entry (or (assq 'is-multi docstruct) | |
138 | (car (push (list 'is-multi is-multi) docstruct))))) | |
139 | (setcdr entry (cons is-multi nil))) | |
140 | (and index-tags (setq index-tags (sort index-tags 'string<))) | |
141 | (let ((index-tag-cell (assq 'index-tags docstruct))) | |
142 | (if index-tag-cell | |
3666daf6 CD |
143 | (setcdr index-tag-cell index-tags) |
144 | (push (cons 'index-tags index-tags) docstruct))) | |
1a9461d0 CD |
145 | (unless (assq 'xr docstruct) |
146 | (let* ((allxr (reftex-all-assq 'xr-doc docstruct)) | |
3666daf6 | 147 | (alist (mapcar |
887a0b34 | 148 | (lambda (x) |
3666daf6 CD |
149 | (if (setq tmp (reftex-locate-file (nth 2 x) "tex" |
150 | master-dir)) | |
151 | (cons (nth 1 x) tmp) | |
152 | (message "Can't find external document %s" | |
153 | (nth 2 x)) | |
154 | nil)) | |
155 | allxr)) | |
156 | (alist (delq nil alist)) | |
157 | (allprefix (delq nil (mapcar 'car alist))) | |
158 | (regexp (if allprefix | |
887a0b34 | 159 | (concat "\\`\\(" |
3666daf6 CD |
160 | (mapconcat 'identity allprefix "\\|") |
161 | "\\)") | |
162 | "\\\\\\\\\\\\"))) ; this will never match | |
163 | (push (list 'xr alist regexp) docstruct))) | |
1a9461d0 CD |
164 | |
165 | (set reftex-docstruct-symbol docstruct) | |
166 | (put reftex-docstruct-symbol 'modified t))) | |
167 | ||
168 | (defun reftex-everything-regexp () | |
169 | (if reftex-support-index | |
170 | reftex-everything-regexp | |
171 | reftex-everything-regexp-no-index)) | |
172 | ||
03ca24fb | 173 | ;;;###autoload |
1a9461d0 CD |
174 | (defun reftex-all-document-files (&optional relative) |
175 | "Return a list of all files belonging to the current document. | |
176 | When RELATIVE is non-nil, give file names relative to directory | |
177 | of master file." | |
178 | (let* ((all (symbol-value reftex-docstruct-symbol)) | |
179 | (master-dir (file-name-directory (reftex-TeX-master-file))) | |
180 | (re (concat "\\`" (regexp-quote master-dir))) | |
181 | file-list tmp file) | |
182 | (while (setq tmp (assoc 'bof all)) | |
183 | (setq file (nth 1 tmp) | |
184 | all (cdr (memq tmp all))) | |
185 | (and relative | |
186 | (string-match re file) | |
187 | (setq file (substring file (match-end 0)))) | |
188 | (push file file-list)) | |
189 | (nreverse file-list))) | |
190 | ||
887a0b34 GM |
191 | ;; Bound in the caller, reftex-do-parse. |
192 | (defvar index-tags) | |
193 | ||
1a9461d0 | 194 | (defun reftex-parse-from-file (file docstruct master-dir) |
79d7167f | 195 | "Scan the buffer for labels and save them in a list." |
1a9461d0 CD |
196 | (let ((regexp (reftex-everything-regexp)) |
197 | (bound 0) | |
198 | file-found tmp include-file | |
199 | (level 1) | |
200 | (highest-level 100) | |
201 | toc-entry index-entry next-buf buf) | |
202 | ||
203 | (catch 'exit | |
204 | (setq file-found (reftex-locate-file file "tex" master-dir)) | |
205 | (if (and (not file-found) | |
3666daf6 CD |
206 | (setq buf (reftex-get-buffer-visiting file))) |
207 | (setq file-found (buffer-file-name buf))) | |
1a9461d0 CD |
208 | |
209 | (unless file-found | |
210 | (push (list 'file-error file) docstruct) | |
211 | (throw 'exit nil)) | |
212 | ||
213 | (save-excursion | |
214 | ||
215 | (message "Scanning file %s" file) | |
216 | (set-buffer | |
217 | (setq next-buf | |
218 | (reftex-get-file-buffer-force | |
219 | file-found | |
220 | (not (eq t reftex-keep-temporary-buffers))))) | |
221 | ||
222 | ;; Begin of file mark | |
223 | (setq file (buffer-file-name)) | |
224 | (push (list 'bof file) docstruct) | |
225 | ||
3666daf6 CD |
226 | (reftex-with-special-syntax |
227 | (save-excursion | |
228 | (save-restriction | |
229 | (widen) | |
230 | (goto-char 1) | |
231 | ||
232 | (while (re-search-forward regexp nil t) | |
233 | ||
234 | (cond | |
235 | ||
236 | ((match-end 1) | |
237 | ;; It is a label | |
d79d37bd TH |
238 | (when (or (null reftex-label-ignored-macros-and-environments) |
239 | ;; \label{} defs should always be honored, | |
240 | ;; just no keyval style [label=foo] defs. | |
241 | (string-equal "\label{" (substring (reftex-match-string 0) 0 7)) | |
f440830d GM |
242 | (if (and (fboundp 'TeX-current-macro) |
243 | (fboundp 'LaTeX-current-environment)) | |
244 | (not (or (member (save-match-data (TeX-current-macro)) | |
245 | reftex-label-ignored-macros-and-environments) | |
246 | (member (save-match-data (LaTeX-current-environment)) | |
247 | reftex-label-ignored-macros-and-environments))) | |
248 | t)) | |
d79d37bd TH |
249 | (push (reftex-label-info (reftex-match-string 1) file bound) |
250 | docstruct))) | |
3666daf6 CD |
251 | |
252 | ((match-end 3) | |
253 | ;; It is a section | |
3666daf6 | 254 | |
4f595e15 RA |
255 | ;; Use the beginning as bound and not the end |
256 | ;; (i.e. (point)) because the section command might | |
257 | ;; be the start of the current environment to be | |
258 | ;; found by `reftex-label-info'. | |
259 | (setq bound (match-beginning 0)) | |
260 | ;; The section regexp matches a character at the end | |
261 | ;; we are not interested in. Especially if it is the | |
262 | ;; backslash of a following macro we want to find in | |
263 | ;; the next parsing iteration. | |
264 | (when (eq (char-before) ?\\) (backward-char)) | |
3666daf6 | 265 | ;; Insert in List |
e2cb57f5 | 266 | (setq toc-entry (funcall reftex-section-info-function file)) |
3666daf6 CD |
267 | (when toc-entry |
268 | ;; It can happen that section info returns nil | |
269 | (setq level (nth 5 toc-entry)) | |
270 | (setq highest-level (min highest-level level)) | |
271 | (if (= level highest-level) | |
272 | (message | |
273 | "Scanning %s %s ..." | |
274 | (car (rassoc level reftex-section-levels-all)) | |
275 | (nth 6 toc-entry))) | |
276 | ||
277 | (push toc-entry docstruct) | |
278 | (setq reftex-active-toc toc-entry))) | |
279 | ||
280 | ((match-end 7) | |
281 | ;; It's an include or input | |
282 | (setq include-file (reftex-match-string 7)) | |
283 | ;; Test if this file should be ignored | |
887a0b34 | 284 | (unless (delq nil (mapcar |
3666daf6 CD |
285 | (lambda (x) (string-match x include-file)) |
286 | reftex-no-include-regexps)) | |
287 | ;; Parse it | |
288 | (setq docstruct | |
289 | (reftex-parse-from-file | |
290 | include-file | |
291 | docstruct master-dir)))) | |
292 | ||
293 | ((match-end 9) | |
294 | ;; Appendix starts here | |
295 | (reftex-init-section-numbers nil t) | |
296 | (push (cons 'appendix t) docstruct)) | |
297 | ||
298 | ((match-end 10) | |
299 | ;; Index entry | |
300 | (when reftex-support-index | |
301 | (setq index-entry (reftex-index-info file)) | |
302 | (when index-entry | |
303 | (add-to-list 'index-tags (nth 1 index-entry)) | |
304 | (push index-entry docstruct)))) | |
305 | ||
306 | ((match-end 11) | |
307 | ;; A macro with label | |
308 | (save-excursion | |
309 | (let* ((mac (reftex-match-string 11)) | |
310 | (label (progn (goto-char (match-end 11)) | |
311 | (save-match-data | |
312 | (reftex-no-props | |
313 | (reftex-nth-arg-wrapper | |
314 | mac))))) | |
315 | (typekey (nth 1 (assoc mac reftex-env-or-mac-alist))) | |
316 | (entry (progn (if typekey | |
317 | ;; A typing macro | |
318 | (goto-char (match-end 0)) | |
319 | ;; A neutral macro | |
320 | (goto-char (match-end 11)) | |
321 | (reftex-move-over-touching-args)) | |
322 | (reftex-label-info | |
323 | label file bound nil nil)))) | |
324 | (push entry docstruct)))) | |
325 | (t (error "This should not happen (reftex-parse-from-file)"))) | |
326 | ) | |
327 | ||
328 | ;; Find bibliography statement | |
329 | (when (setq tmp (reftex-locate-bibliography-files master-dir)) | |
330 | (push (cons 'bib tmp) docstruct)) | |
331 | ||
332 | (goto-char 1) | |
887a0b34 | 333 | (when (re-search-forward |
3666daf6 CD |
334 | "\\(\\`\\|[\n\r]\\)[ \t]*\\\\begin{thebibliography}" nil t) |
335 | (push (cons 'thebib file) docstruct)) | |
887a0b34 | 336 | |
3666daf6 CD |
337 | ;; Find external document specifications |
338 | (goto-char 1) | |
339 | (while (re-search-forward "[\n\r][ \t]*\\\\externaldocument\\(\\[\\([^]]*\\)\\]\\)?{\\([^}]+\\)}" nil t) | |
340 | (push (list 'xr-doc (reftex-match-string 2) | |
341 | (reftex-match-string 3)) | |
342 | docstruct)) | |
343 | ||
344 | ;; End of file mark | |
345 | (push (list 'eof file) docstruct))))) | |
1a9461d0 CD |
346 | |
347 | ;; Kill the scanned buffer | |
348 | (reftex-kill-temporary-buffers next-buf)) | |
349 | ||
350 | ;; Return the list | |
351 | docstruct)) | |
352 | ||
353 | (defun reftex-locate-bibliography-files (master-dir &optional files) | |
79d7167f | 354 | "Scan buffer for bibliography macro and return file list." |
1a9461d0 CD |
355 | (unless files |
356 | (save-excursion | |
357 | (goto-char (point-min)) | |
358 | (if (re-search-forward | |
3666daf6 CD |
359 | (concat |
360 | ; "\\(\\`\\|[\n\r]\\)[^%]*\\\\\\(" | |
361 | "\\(^\\)[^%\n\r]*\\\\\\(" | |
362 | (mapconcat 'identity reftex-bibliography-commands "\\|") | |
c43d45f9 | 363 | "\\)\\(\\[.+?\\]\\)?{[ \t]*\\([^}]+\\)") nil t) |
887a0b34 | 364 | (setq files |
c43d45f9 | 365 | (split-string (reftex-match-string 4) |
3666daf6 | 366 | "[ \t\n\r]*,[ \t\n\r]*"))))) |
1a9461d0 | 367 | (when files |
887a0b34 | 368 | (setq files |
3666daf6 CD |
369 | (mapcar |
370 | (lambda (x) | |
371 | (if (or (member x reftex-bibfile-ignore-list) | |
372 | (delq nil (mapcar (lambda (re) (string-match re x)) | |
373 | reftex-bibfile-ignore-regexps))) | |
374 | ;; excluded file | |
375 | nil | |
376 | ;; find the file | |
377 | (reftex-locate-file x "bib" master-dir))) | |
378 | files)) | |
1a9461d0 CD |
379 | (delq nil files))) |
380 | ||
381 | (defun reftex-replace-label-list-segment (old insert &optional entirely) | |
79d7167f TH |
382 | "Replace the segment in OLD which corresponds to INSERT. |
383 | Works with side effects, directly changes old. | |
384 | If ENTIRELY is t, just return INSERT. | |
385 | This function also makes sure the old toc markers do not point anywhere." | |
1a9461d0 CD |
386 | |
387 | (cond | |
388 | (entirely | |
389 | (reftex-silence-toc-markers old (length old)) | |
390 | insert) | |
391 | (t (let* ((new old) | |
392 | (file (nth 1 (car insert))) | |
393 | (eof-list (member (list 'eof file) old)) | |
394 | (bof-list (member (list 'bof file) old)) | |
395 | n) | |
396 | (if (not (and bof-list eof-list)) | |
397 | (error "Cannot splice") | |
398 | ;; Splice | |
399 | (reftex-silence-toc-markers bof-list (- (length bof-list) | |
400 | (length eof-list))) | |
401 | (setq n (- (length old) (length bof-list))) | |
402 | (setcdr (nthcdr n new) (cdr insert)) | |
403 | (setcdr (nthcdr (1- (length new)) new) (cdr eof-list))) | |
404 | new)))) | |
405 | ||
406 | (defun reftex-section-info (file) | |
79d7167f TH |
407 | "Return a section entry for the current match. |
408 | Careful: This function expects the match-data to be still in place!" | |
1a9461d0 CD |
409 | (let* ((marker (set-marker (make-marker) (1- (match-beginning 3)))) |
410 | (macro (reftex-match-string 3)) | |
3666daf6 CD |
411 | (prefix (save-match-data |
412 | (if (string-match "begin{\\([^}]+\\)}" macro) | |
413 | (match-string 1 macro)))) | |
414 | (level-exp (cdr (assoc macro reftex-section-levels-all))) | |
28b707f9 | 415 | (level (if (symbolp level-exp) |
3666daf6 CD |
416 | (save-match-data (funcall level-exp)) |
417 | level-exp)) | |
418 | (star (= ?* (char-after (match-end 3)))) | |
419 | (unnumbered (or star (< level 0))) | |
420 | (level (abs level)) | |
1a9461d0 | 421 | (section-number (reftex-section-number level unnumbered)) |
887a0b34 | 422 | (text1 (save-match-data |
3666daf6 CD |
423 | (save-excursion |
424 | (reftex-context-substring prefix)))) | |
1a9461d0 CD |
425 | (literal (buffer-substring-no-properties |
426 | (1- (match-beginning 3)) | |
427 | (min (point-max) (+ (match-end 0) (length text1) 1)))) | |
887a0b34 | 428 | ;; Literal can be too short since text1 too short. No big problem. |
1a9461d0 CD |
429 | (text (reftex-nicify-text text1))) |
430 | ||
431 | ;; Add section number and indentation | |
432 | (setq text | |
433 | (concat | |
434 | (make-string (* reftex-level-indent level) ?\ ) | |
435 | (if (nth 1 reftex-label-menu-flags) ; section number flag | |
436 | (concat section-number " ")) | |
3666daf6 | 437 | (if prefix (concat (capitalize prefix) ": ") "") |
1a9461d0 CD |
438 | text)) |
439 | (list 'toc "toc" text file marker level section-number | |
440 | literal (marker-position marker)))) | |
441 | ||
442 | (defun reftex-ensure-index-support (&optional abort) | |
79d7167f TH |
443 | "When index support is turned off, ask to turn it on and |
444 | set the current prefix argument so that `reftex-access-scan-info' | |
445 | will rescan the entire document." | |
1a9461d0 CD |
446 | (cond |
447 | (reftex-support-index t) | |
448 | ((y-or-n-p "Turn on index support and rescan entire document? ") | |
449 | (setq reftex-support-index 'demanded | |
3666daf6 | 450 | current-prefix-arg '(16))) |
1a9461d0 | 451 | (t (if abort |
3666daf6 CD |
452 | (error "No index support") |
453 | (message "No index support") | |
454 | (ding) | |
455 | (sit-for 1))))) | |
1a9461d0 CD |
456 | |
457 | (defun reftex-index-info-safe (file) | |
458 | (reftex-with-special-syntax | |
459 | (reftex-index-info file))) | |
460 | ||
461 | (defvar test-dummy) | |
462 | (defun reftex-index-info (file) | |
79d7167f TH |
463 | "Return an index entry for the current match. |
464 | Careful: This function expects the match-data to be still in place!" | |
1a9461d0 CD |
465 | (catch 'exit |
466 | (let* ((macro (reftex-match-string 10)) | |
3666daf6 CD |
467 | (bom (match-beginning 10)) |
468 | (boa (match-end 10)) | |
469 | (entry (or (assoc macro reftex-index-macro-alist) | |
470 | (throw 'exit nil))) | |
471 | (exclude (nth 3 entry)) | |
472 | ;; The following is a test if this match should be excluded | |
473 | (test-dummy (and (fboundp exclude) | |
474 | (funcall exclude) | |
475 | (throw 'exit nil))) | |
476 | (itag (nth 1 entry)) | |
477 | (prefix (nth 2 entry)) | |
887a0b34 | 478 | (index-tag |
3666daf6 CD |
479 | (cond ((stringp itag) itag) |
480 | ((integerp itag) | |
481 | (progn (goto-char boa) | |
482 | (or (reftex-nth-arg itag (nth 6 entry)) "idx"))) | |
483 | (t "idx"))) | |
484 | (arg (or (progn (goto-char boa) | |
485 | (reftex-nth-arg (nth 5 entry) (nth 6 entry))) | |
486 | "")) | |
487 | (end-of-args (progn (goto-char boa) | |
488 | (reftex-move-over-touching-args) | |
489 | (point))) | |
490 | (end-of-context (progn (skip-chars-forward "^ \t\n\r") (point))) | |
491 | (begin-of-context | |
492 | (progn (goto-char bom) | |
493 | (skip-chars-backward "^ \t\r\n") | |
494 | (point))) | |
495 | (context (buffer-substring-no-properties | |
496 | begin-of-context end-of-context)) | |
497 | (key-end (if (string-match reftex-index-key-end-re arg) | |
498 | (1+ (match-beginning 0)))) | |
499 | (rawkey (substring arg 0 key-end)) | |
887a0b34 | 500 | |
3666daf6 CD |
501 | (key (if prefix (concat prefix rawkey) rawkey)) |
502 | (sortkey (downcase key)) | |
887a0b34 | 503 | (showkey (mapconcat 'identity |
3666daf6 CD |
504 | (split-string key reftex-index-level-re) |
505 | " ! "))) | |
1a9461d0 CD |
506 | (goto-char end-of-args) |
507 | ;; 0 1 2 3 4 5 6 7 8 9 | |
508 | (list 'index index-tag context file bom arg key showkey sortkey key-end)))) | |
887a0b34 | 509 | |
1a9461d0 | 510 | (defun reftex-short-context (env parse &optional bound derive) |
79d7167f | 511 | "Get about one line of useful context for the label definition at point." |
1a9461d0 CD |
512 | |
513 | (if (consp parse) | |
514 | (setq parse (if derive (cdr parse) (car parse)))) | |
515 | ||
516 | (reftex-nicify-text | |
517 | ||
518 | (cond | |
519 | ||
520 | ((null parse) | |
521 | (save-excursion | |
522 | (reftex-context-substring))) | |
523 | ||
524 | ((eq parse t) | |
525 | (if (string= env "section") | |
526 | ;; special treatment for section labels | |
527 | (save-excursion | |
528 | (if (and (re-search-backward reftex-section-or-include-regexp | |
529 | (point-min) t) | |
530 | (match-end 2)) | |
531 | (progn | |
532 | (goto-char (match-end 0)) | |
533 | (reftex-context-substring)) | |
534 | (if reftex-active-toc | |
535 | (progn | |
536 | (string-match "{\\([^}]*\\)" (nth 7 reftex-active-toc)) | |
537 | (match-string 1 (nth 7 reftex-active-toc))) | |
538 | "SECTION HEADING NOT FOUND"))) | |
539 | (save-excursion | |
3666daf6 CD |
540 | (goto-char reftex-default-context-position) |
541 | (unless (eq (string-to-char env) ?\\) | |
542 | (reftex-move-over-touching-args)) | |
1a9461d0 CD |
543 | (reftex-context-substring)))) |
544 | ||
545 | ((stringp parse) | |
546 | (save-excursion | |
547 | (if (re-search-backward parse bound t) | |
548 | (progn | |
549 | (goto-char (match-end 0)) | |
550 | (reftex-context-substring)) | |
551 | "NO MATCH FOR CONTEXT REGEXP"))) | |
552 | ||
553 | ((integerp parse) | |
554 | (or (save-excursion | |
555 | (goto-char reftex-default-context-position) | |
556 | (reftex-nth-arg | |
557 | parse | |
558 | (nth 6 (assoc env reftex-env-or-mac-alist)))) | |
559 | "")) | |
560 | ||
561 | ((fboundp parse) | |
562 | ;; A hook function. Call it. | |
563 | (save-excursion | |
564 | (condition-case error-var | |
565 | (funcall parse env) | |
566 | (error (format "HOOK ERROR: %s" (cdr error-var)))))) | |
567 | (t | |
5181ff9f | 568 | "INVALID VALUE OF PARSE")))) |
1a9461d0 CD |
569 | |
570 | (defun reftex-where-am-I () | |
79d7167f TH |
571 | "Return the docstruct entry above point. |
572 | Actually returns a cons cell in which the cdr is a flag indicating | |
573 | if the information is exact (t) or approximate (nil)." | |
1a9461d0 CD |
574 | |
575 | (let ((docstruct (symbol-value reftex-docstruct-symbol)) | |
3b919c9f | 576 | (cnt 0) rtn rtn-if-no-other |
1a9461d0 CD |
577 | found) |
578 | (save-excursion | |
579 | (while (not rtn) | |
580 | (incf cnt) | |
581 | (setq found (re-search-backward (reftex-everything-regexp) nil t)) | |
582 | (setq rtn | |
583 | (cond | |
584 | ((not found) | |
585 | ;; no match | |
586 | (or | |
587 | (car (member (list 'bof (buffer-file-name)) docstruct)) | |
588 | (not (setq cnt 2)) | |
589 | (assq 'bof docstruct) ;; for safety reasons | |
590 | 'corrupted)) | |
591 | ((match-end 1) | |
592 | ;; Label | |
593 | (assoc (reftex-match-string 1) | |
594 | (symbol-value reftex-docstruct-symbol))) | |
595 | ((match-end 3) | |
596 | ;; Section | |
597 | (goto-char (1- (match-beginning 3))) | |
598 | (let* ((list (member (list 'bof (buffer-file-name)) | |
599 | docstruct)) | |
600 | (endelt (car (member (list 'eof (buffer-file-name)) | |
601 | list))) | |
602 | rtn1) | |
603 | (while (and list (not (eq endelt (car list)))) | |
604 | (if (and (eq (car (car list)) 'toc) | |
605 | (string= (buffer-file-name) | |
606 | (nth 3 (car list)))) | |
607 | (cond | |
608 | ((equal (point) | |
609 | (or (and (markerp (nth 4 (car list))) | |
610 | (marker-position (nth 4 (car list)))) | |
611 | (nth 8 (car list)))) | |
612 | ;; Fits with marker position or recorded position | |
613 | (setq rtn1 (car list) list nil)) | |
614 | ((looking-at (reftex-make-regexp-allow-for-ctrl-m | |
615 | (nth 7 (car list)))) | |
3b919c9f | 616 | ;; Same title: remember, but keep looking |
3666daf6 | 617 | (setq rtn-if-no-other (car list))))) |
1a9461d0 CD |
618 | (pop list)) |
619 | rtn1)) | |
620 | ((match-end 7) | |
621 | ;; Input or include... | |
622 | (car | |
623 | (member (list 'eof (reftex-locate-file | |
624 | (reftex-match-string 7) "tex" | |
3666daf6 | 625 | (cdr (assq 'master-dir docstruct)))) |
1a9461d0 | 626 | docstruct))) |
3666daf6 CD |
627 | ((match-end 9) |
628 | (assq 'appendix (symbol-value reftex-docstruct-symbol))) | |
629 | ((match-end 10) | |
630 | ;; Index entry | |
631 | (when reftex-support-index | |
887a0b34 | 632 | (let* ((index-info (save-excursion |
3666daf6 CD |
633 | (reftex-index-info-safe nil))) |
634 | (list (member (list 'bof (buffer-file-name)) | |
635 | docstruct)) | |
636 | (endelt (car (member (list 'eof (buffer-file-name)) | |
637 | list))) | |
638 | dist last-dist last (n 0)) | |
639 | ;; Check all index entries with equal text | |
640 | (while (and list (not (eq endelt (car list)))) | |
641 | (when (and (eq (car (car list)) 'index) | |
887a0b34 | 642 | (string= (nth 2 index-info) |
3666daf6 CD |
643 | (nth 2 (car list)))) |
644 | (incf n) | |
645 | (setq dist (abs (- (point) (nth 4 (car list))))) | |
646 | (if (or (not last-dist) (< dist last-dist)) | |
647 | (setq last-dist dist last (car list)))) | |
648 | (setq list (cdr list))) | |
649 | ;; We are sure if we have only one, or a zero distance | |
650 | (cond ((or (= n 1) (equal dist 0)) last) | |
651 | ((> n 1) (setq cnt 2) last) | |
652 | (t nil))))) | |
653 | ((match-end 11) | |
1a9461d0 CD |
654 | (save-excursion |
655 | (goto-char (match-end 11)) | |
656 | (assoc (reftex-no-props | |
657 | (reftex-nth-arg-wrapper | |
658 | (reftex-match-string 11))) | |
659 | (symbol-value reftex-docstruct-symbol)))) | |
660 | (t | |
661 | (error "This should not happen (reftex-where-am-I)")))))) | |
3b919c9f CD |
662 | ;; Check if there was only a by-name match for the section. |
663 | (when (and (not rtn) rtn-if-no-other) | |
664 | (setq rtn rtn-if-no-other | |
3666daf6 | 665 | cnt 2)) |
1a9461d0 CD |
666 | (cons rtn (eq cnt 1)))) |
667 | ||
668 | (defun reftex-notice-new (&optional n force) | |
669 | "Hook to handshake with RefTeX after something new has been inserted." | |
670 | ;; Add a new entry to the docstruct list. If it is a section, renumber | |
671 | ;; the following sections. | |
3666daf6 | 672 | ;; FIXME: Put in a WHAT parameter and search backward until one is found. |
1a9461d0 CD |
673 | ;; When N is given, go back that many matches of reftex-everything-regexp |
674 | ;; When FORCE is non-nil, also insert if `reftex-where-am-I' was uncertain. | |
675 | (condition-case nil | |
676 | (catch 'exit | |
3666daf6 CD |
677 | (unless reftex-mode (throw 'exit nil)) |
678 | (reftex-access-scan-info) | |
679 | (let* ((docstruct (symbol-value reftex-docstruct-symbol)) | |
680 | here-I-am appendix tail entry star level | |
681 | section-number context) | |
1a9461d0 CD |
682 | |
683 | (save-excursion | |
684 | (when (re-search-backward (reftex-everything-regexp) nil t (or n 1)) | |
685 | ||
3666daf6 CD |
686 | ;; Find where we are |
687 | (setq here-I-am (reftex-where-am-I)) | |
688 | (or here-I-am (throw 'exit nil)) | |
689 | (unless (or force (cdr here-I-am)) (throw 'exit nil)) | |
690 | (setq tail (memq (car here-I-am) docstruct)) | |
691 | (or tail (throw 'exit nil)) | |
692 | (setq reftex-active-toc (reftex-last-assoc-before-elt | |
693 | 'toc (car here-I-am) docstruct) | |
694 | appendix (reftex-last-assoc-before-elt | |
695 | 'appendix (car here-I-am) docstruct)) | |
696 | ||
697 | ;; Initialize section numbers | |
698 | (if (eq (car (car here-I-am)) 'appendix) | |
699 | (reftex-init-section-numbers nil t) | |
700 | (reftex-init-section-numbers reftex-active-toc appendix)) | |
701 | ||
702 | ;; Match the section command | |
703 | (when (re-search-forward (reftex-everything-regexp) nil t) | |
704 | (cond | |
705 | ((match-end 1) | |
706 | (push (reftex-label-info (reftex-match-string 1) buffer-file-name) | |
707 | (cdr tail))) | |
708 | ||
709 | ((match-end 3) | |
710 | (setq star (= ?* (char-after (match-end 3))) | |
711 | entry (reftex-section-info (buffer-file-name)) | |
712 | level (nth 5 entry)) | |
713 | ;; Insert the section info | |
714 | (push entry (cdr tail)) | |
887a0b34 | 715 | |
3666daf6 CD |
716 | ;; We are done unless we use section numbers |
717 | (unless (nth 1 reftex-label-menu-flags) (throw 'exit nil)) | |
718 | ||
719 | ;; Update the remaining toc items | |
720 | (setq tail (cdr tail)) | |
721 | (while (and (setq tail (memq (assq 'toc (cdr tail)) tail)) | |
722 | (setq entry (car tail)) | |
723 | (>= (nth 5 entry) level)) | |
724 | (setq star (string-match "\\*" (nth 6 entry)) | |
725 | context (nth 2 entry) | |
726 | section-number | |
727 | (reftex-section-number (nth 5 entry) star)) | |
728 | (when (string-match "\\`\\([ \t]*\\)\\([.0-9A-Z]+\\)\\(.*\\)" | |
729 | context) | |
730 | (when (and (not appendix) | |
731 | (>= (string-to-char (match-string 2)) ?A)) | |
91af3942 | 732 | ;; Just entered the appendix. Get out. |
3666daf6 CD |
733 | (throw 'exit nil)) |
734 | ||
735 | ;; Change the section number. | |
736 | (setf (nth 2 entry) | |
737 | (concat (match-string 1 context) | |
738 | section-number | |
739 | (match-string 3 context)))))) | |
740 | ((match-end 10) | |
741 | ;; Index entry | |
742 | (and reftex-support-index | |
743 | (setq entry (reftex-index-info-safe buffer-file-name)) | |
744 | ;; FIXME: (add-to-list 'index-tags (nth 1 index-entry)) | |
745 | (push entry (cdr tail)))))))))) | |
887a0b34 | 746 | |
1a9461d0 CD |
747 | (error nil)) |
748 | ) | |
749 | ||
750 | (defsubst reftex-move-to-previous-arg (&optional bound) | |
79d7167f TH |
751 | "Assuming that we are in front of a macro argument, |
752 | move backward to the closing parenthesis of the previous argument. | |
753 | This function understands the splitting of macros over several lines | |
754 | in TeX." | |
1a9461d0 CD |
755 | (cond |
756 | ;; Just to be quick: | |
757 | ((memq (preceding-char) '(?\] ?\}))) | |
758 | ;; Do a search | |
759 | ((and reftex-allow-detached-macro-args | |
3666daf6 CD |
760 | (re-search-backward |
761 | "[]}][ \t]*[\n\r]?\\([ \t]*%[^\n\r]*[\n\r]\\)*[ \t]*\\=" bound t)) | |
1a9461d0 CD |
762 | (goto-char (1+ (match-beginning 0))) |
763 | t) | |
764 | (t nil))) | |
765 | ||
766 | (defun reftex-what-macro-safe (which &optional bound) | |
79d7167f | 767 | "Call `reftex-what-macro' with special syntax table." |
1a9461d0 CD |
768 | (reftex-with-special-syntax |
769 | (reftex-what-macro which bound))) | |
770 | ||
771 | (defun reftex-what-macro (which &optional bound) | |
79d7167f TH |
772 | "Find out if point is within the arguments of any TeX-macro. |
773 | The return value is either (\"\\macro\" . (point)) or a list of them. | |
774 | ||
775 | If WHICH is nil, immediately return nil. | |
776 | If WHICH is 1, return innermost enclosing macro. | |
777 | If WHICH is t, return list of all macros enclosing point. | |
778 | If WHICH is a list of macros, look only for those macros and return the | |
779 | name of the first macro in this list found to enclose point. | |
780 | If the optional BOUND is an integer, bound backwards directed | |
781 | searches to this point. If it is nil, limit to nearest \\section - | |
782 | like statement. | |
783 | ||
784 | This function is pretty stable, but can be fooled if the text contains | |
785 | things like \\macro{aa}{bb} where \\macro is defined to take only one | |
786 | argument. As RefTeX cannot know this, the string \"bb\" would still be | |
787 | considered an argument of macro \\macro." | |
1a9461d0 CD |
788 | (unless reftex-section-regexp (reftex-compile-variables)) |
789 | (catch 'exit | |
790 | (if (null which) (throw 'exit nil)) | |
791 | (let ((bound (or bound (save-excursion (re-search-backward | |
792 | reftex-section-regexp nil 1) | |
793 | (point)))) | |
794 | pos cmd-list cmd cnt cnt-opt entry) | |
795 | (save-restriction | |
796 | (save-excursion | |
de558d10 | 797 | (narrow-to-region (max (point-min) bound) (point-max)) |
1a9461d0 CD |
798 | ;; move back out of the current parenthesis |
799 | (while (condition-case nil | |
5d8e0d5d SM |
800 | (let ((forward-sexp-function nil)) |
801 | (up-list -1) t) | |
1a9461d0 CD |
802 | (error nil)) |
803 | (setq cnt 1 cnt-opt 0) | |
804 | ;; move back over any touching sexps | |
805 | (while (and (reftex-move-to-previous-arg bound) | |
3666daf6 | 806 | (condition-case nil |
5d8e0d5d SM |
807 | (let ((forward-sexp-function nil)) |
808 | (backward-sexp) t) | |
3666daf6 CD |
809 | (error nil))) |
810 | (if (eq (following-char) ?\[) (incf cnt-opt)) | |
1a9461d0 CD |
811 | (incf cnt)) |
812 | (setq pos (point)) | |
813 | (when (and (or (= (following-char) ?\[) | |
814 | (= (following-char) ?\{)) | |
815 | (re-search-backward "\\\\[*a-zA-Z]+\\=" nil t)) | |
816 | (setq cmd (reftex-match-string 0)) | |
3666daf6 CD |
817 | (when (looking-at "\\\\begin{[^}]*}") |
818 | (setq cmd (reftex-match-string 0) | |
819 | cnt (1- cnt))) | |
820 | ;; This does ignore optional arguments. Very hard to fix. | |
821 | (when (setq entry (assoc cmd reftex-env-or-mac-alist)) | |
822 | (if (> cnt (or (nth 4 entry) 100)) | |
823 | (setq cmd nil))) | |
1a9461d0 | 824 | (cond |
3666daf6 CD |
825 | ((null cmd)) |
826 | ((eq t which) | |
827 | (push (cons cmd (point)) cmd-list)) | |
828 | ((or (eq 1 which) (member cmd which)) | |
829 | (throw 'exit (cons cmd (point)))))) | |
1a9461d0 CD |
830 | (goto-char pos))) |
831 | (nreverse cmd-list))))) | |
832 | ||
833 | (defun reftex-what-environment (which &optional bound) | |
79d7167f TH |
834 | "Find out if point is inside a LaTeX environment. |
835 | The return value is (e.g.) either (\"equation\" . (point)) or a list of | |
836 | them. | |
837 | ||
838 | If WHICH is nil, immediately return nil. | |
839 | If WHICH is 1, return innermost enclosing environment. | |
840 | If WHICH is t, return list of all environments enclosing point. | |
841 | If WHICH is a list of environments, look only for those environments and | |
842 | return the name of the first environment in this list found to enclose | |
843 | point. | |
844 | ||
845 | If the optional BOUND is an integer, bound backwards directed searches to | |
846 | this point. If it is nil, limit to nearest \\section - like statement." | |
1a9461d0 CD |
847 | (unless reftex-section-regexp (reftex-compile-variables)) |
848 | (catch 'exit | |
849 | (save-excursion | |
850 | (if (null which) (throw 'exit nil)) | |
851 | (let ((bound (or bound (save-excursion (re-search-backward | |
852 | reftex-section-regexp nil 1) | |
853 | (point)))) | |
854 | env-list end-list env) | |
855 | (while (re-search-backward "\\\\\\(begin\\|end\\){\\([^}]+\\)}" | |
856 | bound t) | |
857 | (setq env (buffer-substring-no-properties | |
858 | (match-beginning 2) (match-end 2))) | |
859 | (cond | |
860 | ((string= (match-string 1) "end") | |
3666daf6 | 861 | (push env end-list)) |
1a9461d0 CD |
862 | ((equal env (car end-list)) |
863 | (setq end-list (cdr end-list))) | |
864 | ((eq t which) | |
865 | (push (cons env (point)) env-list)) | |
866 | ((or (eq 1 which) (member env which)) | |
867 | (throw 'exit (cons env (point)))))) | |
868 | (nreverse env-list))))) | |
869 | ||
870 | (defun reftex-what-special-env (which &optional bound) | |
79d7167f TH |
871 | "Run the special environment parsers and return the matches. |
872 | ||
873 | The return value is (e.g.) either (\"my-parser-function\" . (point)) | |
874 | or a list of them. | |
1a9461d0 | 875 | |
79d7167f TH |
876 | If WHICH is nil, immediately return nil. |
877 | If WHICH is 1, return innermost enclosing environment. | |
878 | If WHICH is t, return list of all environments enclosing point. | |
879 | If WHICH is a list of environments, look only for those environments and | |
880 | return the name of the first environment in this list found to enclose | |
881 | point." | |
1a9461d0 CD |
882 | (unless reftex-section-regexp (reftex-compile-variables)) |
883 | (catch 'exit | |
884 | (save-excursion | |
885 | (if (null reftex-special-env-parsers) (throw 'exit nil)) | |
886 | (if (null which) (throw 'exit nil)) | |
887 | (let ((bound (or bound (save-excursion (re-search-backward | |
888 | reftex-section-regexp nil 1) | |
889 | (point)))) | |
3666daf6 CD |
890 | (fun-list (if (listp which) |
891 | (mapcar (lambda (x) (if (memq x which) x nil)) | |
892 | reftex-special-env-parsers) | |
893 | reftex-special-env-parsers)) | |
1a9461d0 | 894 | specials rtn) |
3666daf6 | 895 | ;; Call all functions |
887a0b34 | 896 | (setq specials (mapcar |
3666daf6 CD |
897 | (lambda (fun) |
898 | (save-excursion | |
899 | (setq rtn (and fun (funcall fun bound))) | |
900 | (if rtn (cons (symbol-name fun) rtn) nil))) | |
901 | fun-list)) | |
902 | ;; Delete the non-matches | |
903 | (setq specials (delq nil specials)) | |
904 | ;; Sort | |
905 | (setq specials (sort specials (lambda (a b) (> (cdr a) (cdr b))))) | |
887a0b34 | 906 | (if (eq which t) |
3666daf6 CD |
907 | specials |
908 | (car specials)))))) | |
1a9461d0 CD |
909 | |
910 | (defsubst reftex-move-to-next-arg (&optional ignore) | |
79d7167f TH |
911 | "Assuming that we are at the end of a macro name or a macro argument, |
912 | move forward to the opening parenthesis of the next argument. | |
913 | This function understands the splitting of macros over several lines | |
914 | in TeX." | |
1a9461d0 CD |
915 | (cond |
916 | ;; Just to be quick: | |
917 | ((memq (following-char) '(?\[ ?\{))) | |
918 | ;; Do a search | |
919 | ((and reftex-allow-detached-macro-args | |
3666daf6 | 920 | (looking-at "[ \t]*[\n\r]?\\([ \t]*%[^\n\r]*[\n\r]\\)*[ \t]*[[{]")) |
1a9461d0 CD |
921 | (goto-char (1- (match-end 0))) |
922 | t) | |
923 | (t nil))) | |
924 | ||
925 | (defun reftex-nth-arg-wrapper (key) | |
926 | (let ((entry (assoc key reftex-env-or-mac-alist))) | |
927 | (reftex-nth-arg (nth 5 entry) (nth 6 entry)))) | |
928 | ||
929 | (defun reftex-nth-arg (n &optional opt-args) | |
79d7167f TH |
930 | "Return the Nth following {} or [] parentheses content. |
931 | OPT-ARGS is a list of argument numbers which are optional." | |
1a9461d0 CD |
932 | |
933 | ;; If we are sitting at a macro start, skip to end of macro name. | |
934 | (and (eq (following-char) ?\\) (skip-chars-forward "a-zA-Z*\\\\")) | |
935 | ||
936 | (if (= n 1000) | |
937 | ;; Special case: Skip all touching arguments | |
938 | (progn | |
3666daf6 CD |
939 | (reftex-move-over-touching-args) |
940 | (reftex-context-substring)) | |
1a9461d0 CD |
941 | |
942 | ;; Do the real thing. | |
943 | (let ((cnt 1)) | |
887a0b34 | 944 | |
1a9461d0 | 945 | (when (reftex-move-to-next-arg) |
887a0b34 | 946 | |
3666daf6 CD |
947 | (while (< cnt n) |
948 | (while (and (member cnt opt-args) | |
949 | (eq (following-char) ?\{)) | |
950 | (incf cnt)) | |
951 | (when (< cnt n) | |
952 | (unless (and (condition-case nil | |
953 | (or (forward-list 1) t) | |
954 | (error nil)) | |
955 | (reftex-move-to-next-arg) | |
956 | (incf cnt)) | |
957 | (setq cnt 1000)))) | |
958 | ||
959 | (while (and (memq cnt opt-args) | |
960 | (eq (following-char) ?\{)) | |
961 | (incf cnt))) | |
1a9461d0 | 962 | (if (and (= n cnt) |
3666daf6 CD |
963 | (> (skip-chars-forward "{\\[") 0)) |
964 | (reftex-context-substring) | |
965 | nil)))) | |
1a9461d0 CD |
966 | |
967 | (defun reftex-move-over-touching-args () | |
968 | (condition-case nil | |
969 | (while (memq (following-char) '(?\[ ?\{)) | |
3666daf6 | 970 | (forward-list 1)) |
887a0b34 | 971 | (error nil))) |
1a9461d0 | 972 | |
7c4d13cc | 973 | (defun reftex-context-substring (&optional to-end) |
79d7167f TH |
974 | "Return up to 150 chars from point. |
975 | When point is just after a { or [, limit string to matching parenthesis" | |
1a9461d0 | 976 | (cond |
7c4d13cc CD |
977 | (to-end |
978 | ;; Environment - find next \end | |
979 | (buffer-substring-no-properties | |
980 | (point) | |
981 | (min (+ (point) 150) | |
3666daf6 CD |
982 | (save-match-data |
983 | ;; FIXME: This is not perfect | |
984 | (if (re-search-forward "\\\\end{" nil t) | |
985 | (match-beginning 0) | |
986 | (point-max)))))) | |
5d8e0d5d | 987 | ((memq (preceding-char) '(?\{ ?\[)) |
1a9461d0 CD |
988 | ;; Inside a list - get only the list. |
989 | (buffer-substring-no-properties | |
990 | (point) | |
991 | (min (+ (point) 150) | |
992 | (point-max) | |
993 | (condition-case nil | |
5d8e0d5d | 994 | (let ((forward-sexp-function nil)) ;Unneeded fanciness. |
1a9461d0 CD |
995 | (up-list 1) |
996 | (1- (point))) | |
997 | (error (point-max)))))) | |
998 | (t | |
999 | ;; no list - just grab 150 characters | |
887a0b34 | 1000 | (buffer-substring-no-properties (point) |
3666daf6 | 1001 | (min (+ (point) 150) (point-max)))))) |
1a9461d0 CD |
1002 | |
1003 | ;; Variable holding the vector with section numbers | |
28b707f9 | 1004 | (defvar reftex-section-numbers (make-vector reftex-max-section-depth 0)) |
1a9461d0 CD |
1005 | |
1006 | (defun reftex-init-section-numbers (&optional toc-entry appendix) | |
79d7167f | 1007 | "Initialize the section numbers with zeros or with what is found in the TOC-ENTRY." |
1a9461d0 CD |
1008 | (let* ((level (or (nth 5 toc-entry) -1)) |
1009 | (numbers (nreverse (split-string (or (nth 6 toc-entry) "") "\\."))) | |
1010 | (depth (1- (length reftex-section-numbers))) | |
1011 | (i depth) number-string) | |
1012 | (while (>= i 0) | |
1013 | (if (> i level) | |
1014 | (aset reftex-section-numbers i 0) | |
3666daf6 CD |
1015 | (setq number-string (or (car numbers) "0")) |
1016 | (if (string-match "\\`[A-Z]\\'" number-string) | |
1017 | (aset reftex-section-numbers i | |
1018 | (- (string-to-char number-string) ?A -1)) | |
027a4b6b | 1019 | (aset reftex-section-numbers i (string-to-number number-string))) |
1a9461d0 CD |
1020 | (pop numbers)) |
1021 | (decf i))) | |
1022 | (put 'reftex-section-numbers 'appendix appendix)) | |
1023 | ||
1024 | (defun reftex-section-number (&optional level star) | |
79d7167f TH |
1025 | "Return a string with the current section number. |
1026 | When LEVEL is non-nil, increase section numbers on that level." | |
1a9461d0 | 1027 | (let* ((depth (1- (length reftex-section-numbers))) idx n (string "") |
3666daf6 CD |
1028 | (appendix (get 'reftex-section-numbers 'appendix)) |
1029 | (partspecial (and (not reftex-part-resets-chapter) | |
1030 | (equal level 0)))) | |
3b919c9f CD |
1031 | ;; partspecial means, this is a part statement. |
1032 | ;; Parts do not reset the chapter counter, and the part number is | |
1033 | ;; not included in the numbering of other sectioning levels. | |
1a9461d0 CD |
1034 | (when level |
1035 | (when (and (> level -1) (not star)) | |
887a0b34 | 1036 | (aset reftex-section-numbers |
3666daf6 | 1037 | level (1+ (aref reftex-section-numbers level)))) |
1a9461d0 CD |
1038 | (setq idx (1+ level)) |
1039 | (when (not star) | |
3666daf6 CD |
1040 | (while (<= idx depth) |
1041 | (if (or (not partspecial) | |
1042 | (not (= idx 1))) | |
1043 | (aset reftex-section-numbers idx 0)) | |
1044 | (incf idx)))) | |
3b919c9f | 1045 | (if partspecial |
3666daf6 CD |
1046 | (setq string (concat "Part " (reftex-roman-number |
1047 | (aref reftex-section-numbers 0)))) | |
3b919c9f CD |
1048 | (setq idx (if reftex-part-resets-chapter 0 1)) |
1049 | (while (<= idx depth) | |
3666daf6 CD |
1050 | (setq n (aref reftex-section-numbers idx)) |
1051 | (if (not (and partspecial (not (equal string "")))) | |
1052 | (setq string (concat string (if (not (string= string "")) "." "") | |
1053 | (int-to-string n)))) | |
1054 | (incf idx)) | |
3b919c9f | 1055 | (save-match-data |
3666daf6 CD |
1056 | (if (string-match "\\`\\([@0]\\.\\)+" string) |
1057 | (setq string (replace-match "" nil nil string))) | |
1058 | (if (string-match "\\(\\.0\\)+\\'" string) | |
1059 | (setq string (replace-match "" nil nil string))) | |
1060 | (if (and appendix | |
1061 | (string-match "\\`[0-9]+" string)) | |
887a0b34 | 1062 | (setq string |
3666daf6 CD |
1063 | (concat |
1064 | (char-to-string | |
027a4b6b | 1065 | (1- (+ ?A (string-to-number (match-string 0 string))))) |
3666daf6 | 1066 | (substring string (match-end 0)))))) |
3b919c9f | 1067 | (if star |
3666daf6 CD |
1068 | (concat (make-string (1- (length string)) ?\ ) "*") |
1069 | string)))) | |
3b919c9f CD |
1070 | |
1071 | (defun reftex-roman-number (n) | |
79d7167f | 1072 | "Return as a string the roman number equal to N." |
3b919c9f | 1073 | (let ((nrest n) |
3666daf6 CD |
1074 | (string "") |
1075 | (list '((1000 . "M") ( 900 . "CM") ( 500 . "D") ( 400 . "CD") | |
1076 | ( 100 . "C") ( 90 . "XC") ( 50 . "L") ( 40 . "XL") | |
1077 | ( 10 . "X") ( 9 . "IX") ( 5 . "V") ( 4 . "IV") | |
1078 | ( 1 . "I"))) | |
1079 | listel i s) | |
3b919c9f CD |
1080 | (while (>= nrest 1) |
1081 | (setq listel (pop list) | |
3666daf6 CD |
1082 | i (car listel) |
1083 | s (cdr listel)) | |
3b919c9f | 1084 | (while (>= nrest i) |
3666daf6 CD |
1085 | (setq string (concat string s) |
1086 | nrest (- nrest i)))) | |
3b919c9f | 1087 | string)) |
1a9461d0 | 1088 | |
4f595e15 RA |
1089 | (provide 'reftex-parse) |
1090 | ||
1a9461d0 | 1091 | ;;; reftex-parse.el ends here |