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3afbc435 | 1 | ;;; reftex-ref.el --- code to create labels and references with RefTeX |
ceb4c4d3 TTN |
2 | ;; Copyright (C) 1997, 1998, 1999, 2000, 2003, 2004, 2005, |
3 | ;; 2006 Free Software Foundation, Inc. | |
3ba2590f | 4 | |
6fbeb429 | 5 | ;; Author: Carsten Dominik <dominik@science.uva.nl> |
5d2a58e0 | 6 | ;; Version: 4.31 |
3ba2590f RS |
7 | |
8 | ;; This file is part of GNU Emacs. | |
9 | ||
10 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
11 | ;; it under the terms of the GNU General Public License as published by | |
12 | ;; the Free Software Foundation; either version 2, or (at your option) | |
13 | ;; any later version. | |
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 | |
21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
27e81652 TTN |
22 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
23 | ;; Boston, MA 02110-1301, USA. | |
1a9461d0 | 24 | |
3afbc435 PJ |
25 | ;;; Commentary: |
26 | ||
27 | ;;; Code: | |
28 | ||
7c4d13cc | 29 | (eval-when-compile (require 'cl)) |
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30 | (provide 'reftex-ref) |
31 | (require 'reftex) | |
3a1e8128 | 32 | (require 'reftex-parse) |
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33 | ;;; |
34 | ||
35 | (defun reftex-label-location (&optional bound) | |
36 | "Return the environment or macro which determines the label type at point. | |
37 | If optional BOUND is an integer, limit backward searches to that point." | |
38 | ||
39 | (let* ((loc1 (reftex-what-macro reftex-label-mac-list bound)) | |
40 | (loc2 (reftex-what-environment reftex-label-env-list bound)) | |
3666daf6 | 41 | (loc3 (reftex-what-special-env 1 bound)) |
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42 | (p1 (or (cdr loc1) 0)) |
43 | (p2 (or (cdr loc2) 0)) | |
3666daf6 CD |
44 | (p3 (or (cdr loc3) 0)) |
45 | (pmax (max p1 p2 p3))) | |
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46 | |
47 | (setq reftex-location-start pmax) | |
48 | (cond | |
49 | ((= p1 pmax) | |
50 | ;; A macro. Default context after macro name. | |
51 | (setq reftex-default-context-position (+ p1 (length (car loc1)))) | |
52 | (or (car loc1) "section")) | |
53 | ((= p2 pmax) | |
54 | ;; An environment. Default context after \begin{name}. | |
55 | (setq reftex-default-context-position (+ p2 8 (length (car loc2)))) | |
56 | (or (car loc2) "section")) | |
57 | ((= p3 pmax) | |
58 | ;; A special. Default context right there. | |
59 | (setq reftex-default-context-position p3) | |
60 | (setq loc3 (car loc3)) | |
61 | (cond ((null loc3) "section") | |
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62 | ((symbolp loc3) (symbol-name loc3)) |
63 | ((stringp loc3) loc3) | |
64 | (t "section"))) | |
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65 | (t ;; This should not happen, I think? |
66 | "section")))) | |
67 | ||
68 | (defun reftex-label-info-update (cell) | |
69 | ;; Update information about just one label in a different file. | |
70 | ;; CELL contains the old info list | |
71 | (let* ((label (nth 0 cell)) | |
72 | (typekey (nth 1 cell)) | |
73 | ;; (text (nth 2 cell)) | |
74 | (file (nth 3 cell)) | |
75 | (comment (nth 4 cell)) | |
76 | (note (nth 5 cell)) | |
77 | (buf (reftex-get-file-buffer-force | |
78 | file (not (eq t reftex-keep-temporary-buffers))))) | |
79 | (if (not buf) | |
80 | (list label typekey "" file comment "LOST LABEL. RESCAN TO FIX.") | |
81 | (save-excursion | |
82 | (set-buffer buf) | |
83 | (save-restriction | |
84 | (widen) | |
85 | (goto-char 1) | |
86 | ||
87 | (if (or (re-search-forward | |
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88 | (format reftex-find-label-regexp-format |
89 | (regexp-quote label)) nil t) | |
90 | (re-search-forward | |
91 | (format reftex-find-label-regexp-format2 | |
92 | (regexp-quote label)) nil t)) | |
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93 | |
94 | (progn | |
95 | (backward-char 1) | |
96 | (append (reftex-label-info label file) (list note))) | |
97 | (list label typekey "" file "LOST LABEL. RESCAN TO FIX."))))))) | |
98 | ||
99 | (defun reftex-label-info (label &optional file bound derive env-or-mac) | |
100 | ;; Return info list on LABEL at point. | |
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101 | (let* ((prefix (if (string-match "^[a-zA-Z0-9]+:" label) |
102 | (match-string 0 label))) | |
103 | (typekey (cdr (assoc prefix reftex-prefix-to-typekey-alist))) | |
1a9461d0 | 104 | (file (or file (buffer-file-name))) |
f3c18bd0 | 105 | (trust reftex-trust-label-prefix) |
3666daf6 | 106 | (in-comment (reftex-in-comment))) |
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107 | (if (and typekey |
108 | (cond ((eq trust t) t) | |
109 | ((null trust) nil) | |
110 | ((stringp trust) (string-match trust typekey)) | |
111 | ((listp trust) (member typekey trust)) | |
112 | (t nil))) | |
113 | (list label typekey | |
114 | (reftex-nicify-text (reftex-context-substring)) | |
115 | file in-comment) | |
116 | (let* ((env-or-mac (or env-or-mac (reftex-label-location bound))) | |
117 | (typekey (nth 1 (assoc env-or-mac reftex-env-or-mac-alist))) | |
118 | (parse (nth 2 (assoc env-or-mac reftex-env-or-mac-alist))) | |
119 | (text (reftex-short-context env-or-mac parse reftex-location-start | |
120 | derive))) | |
121 | (list label typekey text file in-comment))))) | |
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122 | |
123 | ;;; Creating labels --------------------------------------------------------- | |
124 | ||
125 | (defun reftex-label (&optional environment no-insert) | |
126 | "Insert a unique label. Return the label. | |
127 | If ENVIRONMENT is given, don't bother to find out yourself. | |
128 | If NO-INSERT is non-nil, do not insert label into buffer. | |
129 | With prefix arg, force to rescan document first. | |
130 | When you are prompted to enter or confirm a label, and you reply with | |
131 | just the prefix or an empty string, no label at all will be inserted. | |
132 | A new label is also recorded into the label list. | |
133 | This function is controlled by the settings of reftex-insert-label-flags." | |
134 | ||
135 | (interactive) | |
136 | ||
137 | ;; Ensure access to scanning info and rescan buffer if prefix are is '(4). | |
138 | (reftex-access-scan-info current-prefix-arg) | |
139 | ||
140 | ;; Find out what kind of environment this is and abort if necessary. | |
141 | (if (or (not environment) | |
142 | (not (assoc environment reftex-env-or-mac-alist))) | |
143 | (setq environment (reftex-label-location))) | |
144 | (unless environment | |
145 | (error "Can't figure out what kind of label should be inserted")) | |
146 | ||
147 | ;; Ok, go ahead. | |
148 | (catch 'exit | |
149 | (let* ((entry (assoc environment reftex-env-or-mac-alist)) | |
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150 | (typekey (nth 1 entry)) |
151 | (format (nth 3 entry)) | |
152 | (macro-cell (reftex-what-macro 1)) | |
153 | (entry1 (assoc (car macro-cell) reftex-env-or-mac-alist)) | |
154 | label naked prefix valid default force-prompt rescan-is-useful) | |
1a9461d0 | 155 | (when (and (or (nth 5 entry) (nth 5 entry1)) |
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156 | (memq (preceding-char) '(?\[ ?\{))) |
157 | ;; This is an argument of a label macro. Insert naked label. | |
158 | (setq naked t format "%s")) | |
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159 | |
160 | (setq prefix (or (cdr (assoc typekey reftex-typekey-to-prefix-alist)) | |
3666daf6 | 161 | (concat typekey "-"))) |
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162 | ;; Replace any escapes in the prefix |
163 | (setq prefix (reftex-replace-prefix-escapes prefix)) | |
164 | ||
165 | ;; Make a default label. | |
166 | (cond | |
167 | ||
168 | ((reftex-typekey-check typekey (nth 0 reftex-insert-label-flags)) | |
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169 | ;; Derive a label from context. |
170 | (setq reftex-active-toc (reftex-last-assoc-before-elt | |
171 | 'toc (car (reftex-where-am-I)) | |
172 | (symbol-value reftex-docstruct-symbol))) | |
173 | (setq default (reftex-no-props | |
174 | (nth 2 (reftex-label-info " " nil nil t)))) | |
175 | ;; Catch the cases where the is actually no context available. | |
176 | (if (or (string-match "NO MATCH FOR CONTEXT REGEXP" default) | |
5181ff9f | 177 | (string-match "INVALID VALUE OF PARSE" default) |
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178 | (string-match "SECTION HEADING NOT FOUND" default) |
179 | (string-match "HOOK ERROR" default) | |
180 | (string-match "^[ \t]*$" default)) | |
181 | (setq default prefix | |
182 | force-prompt t) ; need to prompt | |
183 | (setq default | |
184 | (concat prefix | |
185 | (funcall reftex-string-to-label-function default))) | |
186 | ||
187 | ;; Make it unique. | |
188 | (setq default (reftex-uniquify-label default nil "-")))) | |
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189 | |
190 | ((reftex-typekey-check typekey (nth 1 reftex-insert-label-flags)) | |
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191 | ;; Minimal default: the user will be prompted. |
192 | (setq default prefix)) | |
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193 | |
194 | (t | |
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195 | ;; Make an automatic label. |
196 | (setq default (reftex-uniquify-label prefix t)))) | |
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197 | |
198 | ;; Should we ask the user? | |
199 | (if (or (reftex-typekey-check typekey | |
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200 | (nth 1 reftex-insert-label-flags)) ; prompt |
201 | force-prompt) | |
202 | ||
203 | (while (not valid) | |
3a1e8128 | 204 | ;; iterate until we get a valid label |
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205 | |
206 | (setq label (read-string | |
207 | (if naked "Naked Label: " "Label: ") | |
208 | default)) | |
209 | ||
3a1e8128 | 210 | ;; Lets make sure that this is a valid label |
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211 | (cond |
212 | ||
213 | ((string-match (concat "\\`\\(" (regexp-quote prefix) | |
214 | "\\)?[ \t]*\\'") | |
215 | label) | |
216 | ;; No label at all, please | |
217 | (message "No label inserted.") | |
218 | (throw 'exit nil)) | |
219 | ||
220 | ;; Test if label contains strange characters | |
221 | ((string-match reftex-label-illegal-re label) | |
5181ff9f | 222 | (message "Label \"%s\" contains invalid characters" label) |
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223 | (ding) |
224 | (sit-for 2)) | |
225 | ||
226 | ;; Look it up in the label list | |
227 | ((setq entry (assoc label | |
228 | (symbol-value reftex-docstruct-symbol))) | |
229 | (ding) | |
230 | (if (y-or-n-p | |
231 | (format "Label '%s' exists. Use anyway? " label)) | |
232 | (setq valid t))) | |
233 | ||
234 | ;; Label is ok | |
235 | (t | |
236 | (setq valid t)))) | |
237 | (setq label default)) | |
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238 | |
239 | ;; Insert the label into the label list | |
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240 | (let* ((here-I-am-info |
241 | (save-excursion | |
242 | (if (and (or naked no-insert) | |
243 | (integerp (cdr macro-cell))) | |
244 | (goto-char (cdr macro-cell))) | |
245 | (reftex-where-am-I))) | |
246 | (here-I-am (car here-I-am-info)) | |
247 | (note (if (cdr here-I-am-info) | |
248 | "" | |
249 | "POSITION UNCERTAIN. RESCAN TO FIX.")) | |
250 | (file (buffer-file-name)) | |
251 | (text nil) | |
252 | (tail (memq here-I-am (symbol-value reftex-docstruct-symbol)))) | |
253 | ||
254 | (or (cdr here-I-am-info) (setq rescan-is-useful t)) | |
255 | ||
256 | (when tail | |
257 | (push (list label typekey text file nil note) (cdr tail)) | |
258 | (put reftex-docstruct-symbol 'modified t))) | |
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259 | |
260 | ;; Insert the label into the buffer | |
261 | (unless no-insert | |
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262 | (insert |
263 | (if reftex-format-label-function | |
264 | (funcall reftex-format-label-function label format) | |
265 | (format format label))) | |
266 | (if (and reftex-plug-into-AUCTeX | |
267 | (fboundp 'LaTeX-add-labels)) | |
268 | ;; Tell AUCTeX about this | |
269 | (LaTeX-add-labels label))) | |
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270 | |
271 | ;; Delete the corresponding selection buffers to force update on next use. | |
272 | (when reftex-auto-update-selection-buffers | |
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273 | (reftex-erase-buffer (reftex-make-selection-buffer-name typekey)) |
274 | (reftex-erase-buffer (reftex-make-selection-buffer-name " "))) | |
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275 | |
276 | (when (and rescan-is-useful reftex-allow-automatic-rescan) | |
3666daf6 | 277 | (reftex-parse-one)) |
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278 | |
279 | ;; return value of the function is the label | |
280 | label))) | |
281 | ||
282 | (defun reftex-string-to-label (string) | |
283 | "Convert a string (a sentence) to a label. | |
284 | Uses `reftex-derive-label-parameters' and `reftex-label-illegal-re'. It | |
285 | also applies `reftex-translate-to-ascii-function' to the string." | |
286 | (when (and reftex-translate-to-ascii-function | |
3666daf6 | 287 | (fboundp reftex-translate-to-ascii-function)) |
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288 | (setq string (funcall reftex-translate-to-ascii-function string))) |
289 | (apply 'reftex-convert-string string | |
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290 | "[-~ \t\n\r,;]+" reftex-label-illegal-re nil nil |
291 | reftex-derive-label-parameters)) | |
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292 | |
293 | (defun reftex-latin1-to-ascii (string) | |
294 | ;; Translate the upper 128 chars in the Latin-1 charset to ASCII equivalents | |
295 | (let ((tab "@@@@@@@@@@@@@@@@@@'@@@@@@@@@@@@@ icLxY|S\"ca<--R-o|23'uq..1o>423?AAAAAAACEEEEIIIIDNOOOOOXOUUUUYP3aaaaaaaceeeeiiiidnooooo:ouuuuypy") | |
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296 | (emacsp (not (featurep 'xemacs)))) |
297 | (mapconcat | |
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298 | (lambda (c) |
299 | (cond ((and (> c 127) (< c 256)) ; 8 bit Latin-1 | |
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300 | (char-to-string (aref tab (- c 128)))) |
301 | ((and emacsp ; Not for XEmacs | |
302 | (> c 2175) (< c 2304)) ; Mule Latin-1 | |
303 | (char-to-string (aref tab (- c 2176)))) | |
304 | (t (char-to-string c)))) | |
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305 | string ""))) |
306 | ||
307 | (defun reftex-replace-prefix-escapes (prefix) | |
308 | ;; Replace %escapes in a label prefix | |
309 | (save-match-data | |
310 | (let (letter (num 0) replace) | |
311 | (while (string-match "\\%\\([a-zA-Z]\\)" prefix num) | |
312 | (setq letter (match-string 1 prefix)) | |
313 | (setq replace | |
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314 | (save-match-data |
315 | (cond | |
316 | ((equal letter "f") | |
317 | (file-name-sans-extension | |
318 | (file-name-nondirectory (buffer-file-name)))) | |
319 | ((equal letter "F") | |
320 | (let ((masterdir (file-name-directory (reftex-TeX-master-file))) | |
321 | (file (file-name-sans-extension (buffer-file-name)))) | |
322 | (if (string-match (concat "\\`" (regexp-quote masterdir)) | |
323 | file) | |
324 | (substring file (length masterdir)) | |
325 | file))) | |
326 | ((equal letter "m") | |
327 | (file-name-sans-extension | |
328 | (file-name-nondirectory (reftex-TeX-master-file)))) | |
329 | ((equal letter "M") | |
330 | (file-name-nondirectory | |
331 | (substring (file-name-directory (reftex-TeX-master-file)) | |
332 | 0 -1))) | |
333 | ((equal letter "u") | |
334 | (or (user-login-name) "")) | |
335 | ((equal letter "S") | |
336 | (let* (macro level-exp level) | |
337 | (save-excursion | |
338 | (save-match-data | |
339 | (when (re-search-backward reftex-section-regexp nil t) | |
340 | (setq macro (reftex-match-string 2) | |
341 | level-exp (cdr (assoc macro reftex-section-levels-all)) | |
342 | level (if (symbolp level-exp) | |
343 | (abs (save-match-data | |
344 | (funcall level-exp))) | |
345 | (abs level-exp)))) | |
346 | (cdr (or (assoc macro reftex-section-prefixes) | |
347 | (assoc level reftex-section-prefixes) | |
348 | (assq t reftex-section-prefixes) | |
349 | (list t "sec:"))))))) | |
350 | (t "")))) | |
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351 | (setq num (1- (+ (match-beginning 1) (length replace))) |
352 | prefix (replace-match replace nil nil prefix))) | |
353 | prefix))) | |
354 | ||
355 | (defun reftex-uniquify-label (label &optional force separator) | |
356 | ;; Make label unique by appending a number. | |
357 | ;; Optional FORCE means, force appending a number, even if label is unique. | |
358 | ;; Optional SEPARATOR is a string to stick between label and number. | |
359 | ||
360 | ;; Ensure access to scanning info | |
361 | (reftex-access-scan-info) | |
362 | ||
363 | (cond | |
364 | ((and (not force) | |
365 | (not (assoc label (symbol-value reftex-docstruct-symbol)))) | |
366 | label) | |
367 | (t | |
368 | (let* ((label-numbers (assq 'label-numbers | |
369 | (symbol-value reftex-docstruct-symbol))) | |
370 | (label-numbers-alist (cdr label-numbers)) | |
371 | (cell (or (assoc label label-numbers-alist) | |
372 | (car (setcdr label-numbers | |
373 | (cons (cons label 0) | |
374 | label-numbers-alist))))) | |
375 | (num (1+ (cdr cell))) | |
376 | (sep (or separator ""))) | |
377 | (while (assoc (concat label sep (int-to-string num)) | |
378 | (symbol-value reftex-docstruct-symbol)) | |
379 | (incf num)) | |
380 | (setcdr cell num) | |
381 | (concat label sep (int-to-string num)))))) | |
382 | ||
383 | ;;; Referencing labels ------------------------------------------------------ | |
384 | ||
385 | ;; Help string for the reference label menu | |
386 | (defconst reftex-select-label-prompt | |
387 | "Select: [n]ext [p]revious [r]escan [ ]context e[x]tern [q]uit RET [?]HELP+more") | |
388 | ||
389 | (defconst reftex-select-label-help | |
390 | " n / p Go to next/previous label (Cursor motion works as well) | |
391 | C-c C-n/p Go to next/previous section heading. | |
392 | b / l Jump back to previous selection / Reuse last referenced label. | |
70d797cd | 393 | z Jump to a specific section, e.g. '3 z' jumps to section 3. |
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394 | g / s Update menu / Switch label type. |
395 | r / C-u r Reparse document / Reparse entire document. | |
396 | x Switch to label menu of external document (with LaTeX package `xr'). | |
397 | F t c Toggle: [F]ile borders, [t]able of contents, [c]ontext | |
398 | # % Toggle: [#] label counters, [%] labels in comments | |
399 | SPC / f Show full context in other window / Toggle follow mode. | |
400 | . Show insertion point in other window. | |
401 | v / V Toggle \\ref <-> \\vref / Rotate \\ref <=> \\fref <=> \\Fref | |
402 | TAB Enter a label with completion. | |
403 | m , - + Mark entry. `,-+' also assign a separator. | |
404 | a / A Put all marked entries into one/many \\ref commands. | |
405 | q / RET Quit without referencing / Accept current label (also on mouse-2).") | |
406 | ||
407 | (defun reftex-reference (&optional type no-insert cut) | |
408 | "Make a LaTeX reference. Look only for labels of a certain TYPE. | |
409 | With prefix arg, force to rescan buffer for labels. This should only be | |
410 | necessary if you have recently entered labels yourself without using | |
411 | reftex-label. Rescanning of the buffer can also be requested from the | |
412 | label selection menu. | |
413 | The function returns the selected label or nil. | |
414 | If NO-INSERT is non-nil, do not insert \\ref command, just return label. | |
415 | When called with 2 C-u prefix args, disable magic word recognition." | |
416 | ||
417 | (interactive) | |
418 | ||
419 | ;; check for active recursive edits | |
420 | (reftex-check-recursive-edit) | |
421 | ||
3666daf6 | 422 | ;; Ensure access to scanning info and rescan buffer if prefix are is '(4) |
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423 | (reftex-access-scan-info current-prefix-arg) |
424 | ||
425 | (unless type | |
426 | ;; guess type from context | |
427 | (if (and reftex-guess-label-type | |
428 | (setq type (reftex-guess-label-type))) | |
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429 | (setq cut (cdr type) |
430 | type (car type)) | |
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431 | (setq type (reftex-query-label-type)))) |
432 | ||
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433 | (let* ((refstyle |
434 | (cond ((reftex-typekey-check type reftex-vref-is-default) "\\vref") | |
435 | ((reftex-typekey-check type reftex-fref-is-default) "\\fref") | |
436 | (t "\\ref"))) | |
437 | (reftex-format-ref-function reftex-format-ref-function) | |
438 | (form "\\ref{%s}") | |
439 | label labels sep sep1) | |
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440 | |
441 | ;; Have the user select a label | |
442 | (set-marker reftex-select-return-marker (point)) | |
443 | (setq labels (save-excursion | |
3666daf6 | 444 | (reftex-offer-label-menu type))) |
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445 | (reftex-ensure-compiled-variables) |
446 | (set-marker reftex-select-return-marker nil) | |
3b919c9f | 447 | ;; If the first entry is the symbol 'concat, concat all labels. |
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448 | ;; We keep the cdr of the first label for typekey etc information. |
449 | (if (eq (car labels) 'concat) | |
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450 | (setq labels (list (list (mapconcat 'car (cdr labels) ",") |
451 | (cdr (nth 1 labels)))))) | |
1a9461d0 | 452 | (setq type (nth 1 (car labels)) |
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453 | form (or (cdr (assoc type reftex-typekey-to-format-alist)) |
454 | form)) | |
455 | ||
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456 | (cond |
457 | (no-insert | |
458 | ;; Just return the first label | |
459 | (car (car labels))) | |
460 | ((null labels) | |
461 | (message "Quit") | |
462 | nil) | |
463 | (t | |
464 | (while labels | |
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465 | (setq label (car (car labels)) |
466 | sep (nth 2 (car labels)) | |
467 | sep1 (cdr (assoc sep reftex-multiref-punctuation)) | |
468 | labels (cdr labels)) | |
469 | (when cut | |
470 | (backward-delete-char cut) | |
471 | (setq cut nil)) | |
472 | ||
473 | ;; remove ~ if we do already have a space | |
474 | (when (and (= ?~ (string-to-char form)) | |
f3c18bd0 | 475 | (member (preceding-char) '(?\ ?\t ?\n ?~))) |
3666daf6 CD |
476 | (setq form (substring form 1))) |
477 | ;; do we have a special format? | |
478 | (setq reftex-format-ref-function | |
479 | (cond | |
480 | ((string= refstyle "\\vref") 'reftex-format-vref) | |
481 | ((string= refstyle "\\fref") 'reftex-format-fref) | |
482 | ((string= refstyle "\\Fref") 'reftex-format-Fref) | |
483 | (t reftex-format-ref-function))) | |
484 | ;; ok, insert the reference | |
485 | (if sep1 (insert sep1)) | |
486 | (insert | |
487 | (if reftex-format-ref-function | |
488 | (funcall reftex-format-ref-function label form) | |
489 | (format form label label))) | |
490 | ;; take out the initial ~ for good | |
491 | (and (= ?~ (string-to-char form)) | |
492 | (setq form (substring form 1)))) | |
1a9461d0 CD |
493 | (message "") |
494 | label)))) | |
495 | ||
496 | (defun reftex-guess-label-type () | |
497 | ;; Examine context to guess what a \ref might want to reference. | |
498 | (let ((words reftex-words-to-typekey-alist) | |
3666daf6 CD |
499 | (case-fold-search t) |
500 | (bound (max (point-min) (- (point) 35))) | |
501 | matched cell) | |
1a9461d0 CD |
502 | (save-excursion |
503 | (while (and (setq cell (pop words)) | |
3666daf6 CD |
504 | (not (setq matched |
505 | (re-search-backward (car cell) bound t)))))) | |
1a9461d0 | 506 | (if matched |
3666daf6 | 507 | (cons (cdr cell) (- (match-end 0) (match-end 1))) |
1a9461d0 CD |
508 | nil))) |
509 | ||
510 | (defvar reftex-select-label-map) | |
511 | (defun reftex-offer-label-menu (typekey) | |
512 | ;; Offer a menu with the appropriate labels. | |
513 | (let* ((buf (current-buffer)) | |
3666daf6 CD |
514 | (xr-data (assq 'xr (symbol-value reftex-docstruct-symbol))) |
515 | (xr-alist (cons (cons "" (buffer-file-name)) (nth 1 xr-data))) | |
516 | (xr-index 0) | |
1a9461d0 | 517 | (here-I-am (car (reftex-where-am-I))) |
3666daf6 | 518 | (here-I-am1 here-I-am) |
1a9461d0 CD |
519 | (toc (reftex-typekey-check typekey reftex-label-menu-flags 0)) |
520 | (files (reftex-typekey-check typekey reftex-label-menu-flags 7)) | |
521 | (context (not (reftex-typekey-check | |
522 | typekey reftex-label-menu-flags 3))) | |
523 | (counter (reftex-typekey-check | |
524 | typekey reftex-label-menu-flags 2)) | |
525 | (follow (reftex-typekey-check | |
526 | typekey reftex-label-menu-flags 4)) | |
527 | (commented (nth 5 reftex-label-menu-flags)) | |
3666daf6 CD |
528 | (prefix "") |
529 | selection-buffers | |
1a9461d0 CD |
530 | offset rtn key data last-data entries) |
531 | ||
532 | (unwind-protect | |
533 | (catch 'exit | |
534 | (while t | |
535 | (save-window-excursion | |
3666daf6 CD |
536 | (delete-other-windows) |
537 | (setq reftex-call-back-to-this-buffer buf | |
538 | reftex-latex-syntax-table (syntax-table)) | |
539 | (let ((default-major-mode 'reftex-select-label-mode)) | |
540 | (if reftex-use-multiple-selection-buffers | |
541 | (switch-to-buffer-other-window | |
542 | (save-excursion | |
543 | (set-buffer buf) | |
544 | (reftex-make-selection-buffer-name typekey))) | |
545 | (switch-to-buffer-other-window "*RefTeX Select*") | |
546 | (reftex-erase-buffer))) | |
547 | (unless (eq major-mode 'reftex-select-label-mode) | |
548 | (reftex-select-label-mode)) | |
549 | (add-to-list 'selection-buffers (current-buffer)) | |
1a9461d0 | 550 | (setq truncate-lines t) |
3666daf6 CD |
551 | (setq mode-line-format |
552 | (list "---- " 'mode-line-buffer-identification | |
553 | " " 'global-mode-string " (" mode-name ")" | |
554 | " S<" 'refstyle ">" | |
555 | " -%-")) | |
556 | (cond | |
557 | ((= 0 (buffer-size)) | |
558 | (let ((buffer-read-only nil)) | |
559 | (message "Creating Selection Buffer...") | |
560 | (setq offset (reftex-insert-docstruct | |
561 | buf | |
562 | toc | |
563 | typekey | |
564 | nil ; index | |
565 | files | |
566 | context | |
567 | counter | |
568 | commented | |
569 | (or here-I-am offset) | |
570 | prefix | |
571 | nil ; no a toc buffer | |
572 | )))) | |
573 | (here-I-am | |
574 | (setq offset (reftex-get-offset buf here-I-am typekey))) | |
575 | (t (setq offset t))) | |
576 | (setq buffer-read-only t) | |
577 | (setq offset (or offset t)) | |
1a9461d0 CD |
578 | |
579 | (setq here-I-am nil) ; turn off determination of offset | |
580 | (setq rtn | |
581 | (reftex-select-item | |
582 | reftex-select-label-prompt | |
583 | reftex-select-label-help | |
3666daf6 | 584 | reftex-select-label-map |
1a9461d0 CD |
585 | offset |
586 | 'reftex-show-label-location follow)) | |
587 | (setq key (car rtn) | |
588 | data (nth 1 rtn) | |
589 | last-data (nth 2 rtn) | |
3666daf6 | 590 | offset t) |
1a9461d0 CD |
591 | (unless key (throw 'exit nil)) |
592 | (cond | |
3666daf6 CD |
593 | ((eq key ?g) |
594 | ;; update buffer | |
595 | (reftex-erase-buffer)) | |
1a9461d0 CD |
596 | ((or (eq key ?r) |
597 | (eq key ?R)) | |
598 | ;; rescan buffer | |
3666daf6 CD |
599 | (and current-prefix-arg (setq key ?R)) |
600 | (reftex-erase-buffer) | |
1a9461d0 CD |
601 | (reftex-reparse-document buf last-data key)) |
602 | ((eq key ?c) | |
603 | ;; toggle context mode | |
3666daf6 | 604 | (reftex-erase-buffer) |
1a9461d0 CD |
605 | (setq context (not context))) |
606 | ((eq key ?s) | |
607 | ;; switch type | |
3666daf6 | 608 | (setq here-I-am here-I-am1) |
1a9461d0 CD |
609 | (setq typekey (reftex-query-label-type))) |
610 | ((eq key ?t) | |
7c4d13cc | 611 | ;; toggle table of contents display, or change depth |
3666daf6 CD |
612 | (reftex-erase-buffer) |
613 | (if current-prefix-arg | |
614 | (setq reftex-toc-max-level (prefix-numeric-value | |
615 | current-prefix-arg)) | |
616 | (setq toc (not toc)))) | |
1a9461d0 CD |
617 | ((eq key ?F) |
618 | ;; toggle display of included file borders | |
3666daf6 | 619 | (reftex-erase-buffer) |
1a9461d0 CD |
620 | (setq files (not files))) |
621 | ((eq key ?#) | |
622 | ;; toggle counter display | |
3666daf6 | 623 | (reftex-erase-buffer) |
1a9461d0 CD |
624 | (setq counter (not counter))) |
625 | ((eq key ?%) | |
626 | ;; toggle display of commented labels | |
3666daf6 | 627 | (reftex-erase-buffer) |
1a9461d0 CD |
628 | (setq commented (not commented))) |
629 | ((eq key ?l) | |
630 | ;; reuse the last referenced label again | |
631 | (setq entries reftex-last-used-reference) | |
632 | (throw 'exit t)) | |
3666daf6 CD |
633 | ((eq key ?x) |
634 | ;; select an external document | |
635 | (setq xr-index (reftex-select-external-document | |
636 | xr-alist xr-index)) | |
637 | (setq buf (or (reftex-get-file-buffer-force | |
638 | (cdr (nth xr-index xr-alist))) | |
639 | (error "Cannot switch document")) | |
640 | prefix (or (car (nth xr-index xr-alist)) "")) | |
1a9461d0 | 641 | (set-buffer buf) |
3666daf6 CD |
642 | (reftex-access-scan-info)) |
643 | ((stringp key) | |
644 | (setq entries | |
645 | (list | |
646 | (list | |
647 | (or (assoc key (symbol-value reftex-docstruct-symbol)) | |
648 | (list key typekey))))) | |
1a9461d0 | 649 | (throw 'exit t)) |
3666daf6 CD |
650 | ((memq key '(?a ?A return)) |
651 | (cond | |
652 | (reftex-select-marked | |
653 | (setq entries (nreverse reftex-select-marked))) | |
654 | (data | |
655 | (setq entries (list (list data)))) | |
656 | (t (setq entries nil))) | |
657 | (when entries | |
658 | (if (equal key ?a) (push 'concat entries)) | |
659 | (setq reftex-last-used-reference entries)) | |
660 | (set-buffer buf) | |
661 | (throw 'exit t)) | |
662 | (t (error "This should not happen (reftex-offer-label-menu)")))))) | |
1a9461d0 | 663 | (save-excursion |
3666daf6 CD |
664 | (while reftex-buffers-with-changed-invisibility |
665 | (set-buffer (car (car reftex-buffers-with-changed-invisibility))) | |
666 | (setq buffer-invisibility-spec | |
667 | (cdr (pop reftex-buffers-with-changed-invisibility))))) | |
1a9461d0 | 668 | (mapcar (lambda (buf) (and (buffer-live-p buf) (bury-buffer buf))) |
3666daf6 | 669 | selection-buffers) |
1a9461d0 CD |
670 | (reftex-kill-temporary-buffers)) |
671 | ;; Add the prefixes, put together the relevant information in the form | |
7ac7387b | 672 | ;; (LABEL TYPEKEY SEPARATOR) and return a list of those. |
1a9461d0 | 673 | (mapcar (lambda (x) |
3666daf6 CD |
674 | (if (listp x) |
675 | (list (concat prefix (car (car x))) | |
676 | (nth 1 (car x)) | |
677 | (nth 2 x)) | |
678 | x)) | |
679 | entries))) | |
1a9461d0 CD |
680 | |
681 | (defun reftex-reparse-document (&optional buffer data key) | |
682 | ;; Rescan the document. | |
683 | (save-window-excursion | |
684 | (save-excursion | |
685 | (if buffer | |
686 | (if (not (bufferp buffer)) | |
687 | (error "No such buffer %s" (buffer-name buffer)) | |
688 | (set-buffer buffer))) | |
689 | (let ((arg (if (eq key ?R) '(16) '(4))) | |
690 | (file (nth 3 data))) | |
691 | (reftex-access-scan-info arg file))))) | |
692 | ||
693 | (defun reftex-query-label-type () | |
694 | ;; Ask for label type | |
3666daf6 CD |
695 | (let ((key (reftex-select-with-char |
696 | reftex-type-query-prompt reftex-type-query-help 3))) | |
1a9461d0 CD |
697 | (unless (member (char-to-string key) reftex-typekey-list) |
698 | (error "No such label type: %s" (char-to-string key))) | |
699 | (char-to-string key))) | |
700 | ||
3666daf6 CD |
701 | (defun reftex-show-label-location (data forward no-revisit |
702 | &optional stay error) | |
1a9461d0 CD |
703 | ;; View the definition site of a label in another window. |
704 | ;; DATA is an entry from the docstruct list. | |
705 | ;; FORWARD indicates if the label is likely forward from current point. | |
706 | ;; NO-REVISIT means do not load a file to show this label. | |
707 | ;; STAY means leave the new window selected. | |
708 | ;; ERROR means throw an error exception when the label cannot be found. | |
709 | ;; If ERROR is nil, the return value of this function indicates success. | |
710 | (let* ((this-window (selected-window)) | |
3666daf6 | 711 | (errorf (if error 'error 'message)) |
1a9461d0 CD |
712 | label file buffer re found) |
713 | ||
714 | (catch 'exit | |
715 | (setq label (nth 0 data) | |
3666daf6 | 716 | file (nth 3 data)) |
1a9461d0 CD |
717 | |
718 | (unless file | |
3666daf6 CD |
719 | (funcall errorf "Unknown label - reparse might help") |
720 | (throw 'exit nil)) | |
1a9461d0 CD |
721 | |
722 | ;; Goto the file in another window | |
3666daf6 CD |
723 | (setq buffer |
724 | (if no-revisit | |
725 | (reftex-get-buffer-visiting file) | |
726 | (reftex-get-file-buffer-force | |
727 | file (not reftex-keep-temporary-buffers)))) | |
1a9461d0 CD |
728 | (if buffer |
729 | ;; good - the file is available | |
730 | (switch-to-buffer-other-window buffer) | |
731 | ;; we have got a problem here. The file does not exist. | |
732 | ;; Let' get out of here.. | |
3666daf6 CD |
733 | (funcall errorf "Label %s not found" label) |
734 | (throw 'exit nil)) | |
1a9461d0 CD |
735 | |
736 | ;; search for that label | |
737 | (setq re (format reftex-find-label-regexp-format (regexp-quote label))) | |
738 | (setq found | |
3666daf6 CD |
739 | (if forward |
740 | (re-search-forward re nil t) | |
741 | (re-search-backward re nil t))) | |
1a9461d0 CD |
742 | (unless found |
743 | (goto-char (point-min)) | |
3666daf6 CD |
744 | (unless (setq found (re-search-forward re nil t)) |
745 | ;; Ooops. Must be in a macro with distributed args. | |
746 | (setq found | |
747 | (re-search-forward | |
748 | (format reftex-find-label-regexp-format2 | |
749 | (regexp-quote label)) nil t)))) | |
1a9461d0 | 750 | (if (match-end 3) |
3666daf6 CD |
751 | (progn |
752 | (reftex-highlight 0 (match-beginning 3) (match-end 3)) | |
753 | (reftex-show-entry (match-beginning 3) (match-end 3)) | |
754 | (recenter '(4)) | |
755 | (unless stay (select-window this-window))) | |
756 | (select-window this-window) | |
757 | (funcall errorf "Label %s not found" label)) | |
1a9461d0 CD |
758 | found))) |
759 | ||
760 | (defvar font-lock-mode) | |
761 | (defun reftex-show-entry (beg-hlt end-hlt) | |
762 | ;; Show entry if point is hidden | |
763 | (let* ((n (/ (reftex-window-height) 2)) | |
764 | (beg (save-excursion | |
765 | (re-search-backward "[\n\r]" nil 1 n) (point))) | |
766 | (end (save-excursion | |
767 | (re-search-forward "[\n\r]" nil 1 n) (point)))) | |
768 | (cond | |
769 | ((and (boundp 'buffer-invisibility-spec) buffer-invisibility-spec | |
3666daf6 | 770 | (get-char-property (1+ beg-hlt) 'invisible)) |
1a9461d0 CD |
771 | ;; Invisible with text properties. That is easy to change. |
772 | (push (cons (current-buffer) buffer-invisibility-spec) | |
3666daf6 | 773 | reftex-buffers-with-changed-invisibility) |
1a9461d0 CD |
774 | (setq buffer-invisibility-spec nil)) |
775 | ((string-match "\r" (buffer-substring beg end)) | |
776 | ;; Invisible with selective display. We need to copy it. | |
777 | (let ((string (buffer-substring-no-properties beg end))) | |
3666daf6 CD |
778 | (switch-to-buffer "*RefTeX Context Copy*") |
779 | (setq buffer-read-only nil) | |
780 | (erase-buffer) | |
781 | (insert string) | |
782 | (subst-char-in-region (point-min) (point-max) ?\r ?\n t) | |
783 | (goto-char (- beg-hlt beg)) | |
784 | (reftex-highlight 0 (1+ (- beg-hlt beg)) (1+ (- end-hlt beg))) | |
785 | (if (reftex-refontify) | |
786 | (when (or (not (eq major-mode 'latex-mode)) | |
787 | (not font-lock-mode)) | |
788 | (latex-mode) | |
789 | (run-hook-with-args | |
790 | 'reftex-pre-refontification-functions | |
791 | reftex-call-back-to-this-buffer 'reftex-hidden) | |
792 | (turn-on-font-lock)) | |
793 | (when (or (not (eq major-mode 'fundamental-mode)) | |
794 | font-lock-mode) | |
795 | (fundamental-mode))) | |
796 | (run-hooks 'reftex-display-copied-context-hook) | |
797 | (setq buffer-read-only t)))))) | |
1a9461d0 CD |
798 | |
799 | (defun reftex-varioref-vref () | |
70d797cd | 800 | "Insert a reference using the `\\vref' macro from the varioref package." |
1a9461d0 CD |
801 | (interactive) |
802 | (let ((reftex-format-ref-function 'reftex-format-vref)) | |
803 | (reftex-reference))) | |
804 | (defun reftex-fancyref-fref () | |
70d797cd | 805 | "Insert a reference using the `\\fref' macro from the fancyref package." |
1a9461d0 CD |
806 | (interactive) |
807 | (let ((reftex-format-ref-function 'reftex-format-fref) | |
3666daf6 CD |
808 | ;;(reftex-guess-label-type nil) ;FIXME do we want this???? |
809 | ) | |
1a9461d0 CD |
810 | (reftex-reference))) |
811 | (defun reftex-fancyref-Fref () | |
70d797cd | 812 | "Insert a reference using the `\\Fref' macro from the fancyref package." |
1a9461d0 CD |
813 | (interactive) |
814 | (let ((reftex-format-ref-function 'reftex-format-Fref) | |
3666daf6 CD |
815 | ;;(reftex-guess-label-type nil) ;FIXME do we want this???? |
816 | ) | |
1a9461d0 CD |
817 | (reftex-reference))) |
818 | ||
819 | (defun reftex-format-vref (label fmt) | |
820 | (while (string-match "\\\\ref{" fmt) | |
821 | (setq fmt (replace-match "\\vref{" t t fmt))) | |
822 | (format fmt label label)) | |
823 | (defun reftex-format-Fref (label def-fmt) | |
824 | (format "\\Fref{%s}" label)) | |
825 | (defun reftex-format-fref (label def-fmt) | |
826 | (format "\\fref{%s}" label)) | |
827 | ||
3b919c9f CD |
828 | (defun reftex-goto-label (&optional other-window) |
829 | "Prompt for a label (with completion) and jump to the location of this label. | |
830 | Optional prefix argument OTHER-WINDOW goes to the label in another window." | |
831 | (interactive "P") | |
832 | (reftex-access-scan-info) | |
833 | (let* ((wcfg (current-window-configuration)) | |
3666daf6 CD |
834 | (docstruct (symbol-value reftex-docstruct-symbol)) |
835 | (label (completing-read "Label: " docstruct | |
836 | (lambda (x) (stringp (car x))) t)) | |
837 | (selection (assoc label docstruct)) | |
838 | (where (progn | |
839 | (reftex-show-label-location selection t nil 'stay) | |
840 | (point-marker)))) | |
3b919c9f CD |
841 | (unless other-window |
842 | (set-window-configuration wcfg) | |
843 | (switch-to-buffer (marker-buffer where)) | |
3666daf6 | 844 | (goto-char where)) |
3b919c9f CD |
845 | (reftex-unhighlight 0))) |
846 | ||
847 | ||
848 | ||
ab5796a9 | 849 | ;;; arch-tag: 52f14032-fb76-4d31-954f-750c72415675 |
1a9461d0 | 850 | ;;; reftex-ref.el ends here |