(hide-bibtex-entry-bodies): Don't use replace-regexp.
[bpt/emacs.git] / lisp / textmodes / bibtex.el
1 ;;; bibtex.el --- BibTeX mode for GNU Emacs
2
3 ;; Copyright (C) 1992 Free Software Foundation, Inc.
4
5 ;; Author: Bengt Martensson <ubrinf!mond!bengt>
6 ;; Mark Shapiro <shapiro@corto.inria.fr>
7 ;; Mike Newton <newton@gumby.cs.caltech.edu>
8 ;; Aaron Larson <alarson@src.honeywell.com>
9 ;; Version: 1.3.1
10 ;; Maintainer:Aaron Larson <alarson@src.honeywell.com>
11 ;; Adapted-By: ESR
12 ;; Keywords: tex, bib
13
14 ;; This file is part of GNU Emacs.
15
16 ;; GNU Emacs is free software; you can redistribute it and/or modify
17 ;; it under the terms of the GNU General Public License as published by
18 ;; the Free Software Foundation; either version 2, or (at your option)
19 ;; any later version.
20
21 ;; GNU Emacs is distributed in the hope that it will be useful,
22 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
23 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 ;; GNU General Public License for more details.
25
26 ;; You should have received a copy of the GNU General Public License
27 ;; along with GNU Emacs; see the file COPYING. If not, write to
28 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
29
30 ;;; TODO distribute texinfo file.
31
32 ;;; LCD Archive Entry:
33 ;;; bibtex-mode|Bengt Martensson, Marc Shapiro, Aaron Larson|
34 ;;; alarson@src.honeywell.com|
35 ;;; Support for maintaining BibTeX format bibliography databases|
36 ;;; 93-03-29|version 1.3|~/modes/bibtex-mode.el.Z|
37
38 ;;; Commentary:
39
40 ;;; BUGS:
41 ;;; 1. using regular expressions to match the entire bibtex entry dies
42 ;;; on long bibtex entires (e.g. those containing abstracts) since
43 ;;; the length of regular expression matches is fairly limited.
44 ;;; 2. When inserting a string (with \C-C\C-E\s) hitting a TAB results
45 ;;; in the error message "Can't find enclosing Bibtex field" instead
46 ;;; of moving to the empty string. [reported by gernot@cs.unsw.oz.au]
47 ;;; 3. Function string-equalp should be in a library file, not in this
48 ;;; file.
49
50 ;;; (current keeper: alarson@src.honeywell.com
51 ;;; previous: shapiro@corto.inria.fr)
52
53 ;;; Change Log:
54
55 ;; Mon Mar 29 14:06:06 1993 Aaron Larson (alarson at gendibal)
56 ;;
57 ;; * bibtex.el: V1.3 released Mar 30, 1993
58 ;; (bibtex-field-name): Fix to match definition if latex manual,
59 ;; specifically letters, digits, and punctuation other than comma.
60 ;; Underscore is retained for historical reasons.
61 ;; (bibtex-make-field): Fix to work around bug in Lucid prin1-to-string
62 ;; function as reported by Martin Sjolin <marsj@ida.liu.se>.
63 ;; (bibtex-entry): minor code cleanup.
64 ;; (bibtex-mode-map): Remove key binding (C-c n) for
65 ;; narrow-to-bibtex-entry, previous binding violated emacs policy of
66 ;; reserving C-c followed by a letter for user customization.
67 ;; revise modification history to better conform to FSF changelog
68 ;; standards.
69 ;; (bibtex-refile-entry): Removed. Would need disclaimer papers to
70 ;; incorporate it into official sources, and unable to contact author.
71 ;; Fix minor "syntax" errors in documentation strings and such found
72 ;; by new byte compiler. Funs bibtex-mode, bibtex-remove-double-quotes
73 ;;
74 ;;
75 ;; Fri Jan 15 14:06:06 1993 Aaron Larson (alarson at gendibal)
76 ;;
77 ;; * bibtex.el: V1.2 released Feb 15 1993
78 ;; (find-bibtex-entry-location bibtex-make-field): Fixed placement of
79 ;; "interactive specification". [Bug report from
80 ;; mernst@theory.lcs.mit.edu]
81 ;; Fixed problem where bibtex-entry would fail if user typed entry
82 ;; name in wrong case.
83 ;; (bibtex-inside-field) Position the cursor _before_ the last comma
84 ;; on a line (the comma is not necessarily "inside" the field); this
85 ;; does not seem to break any existing code. ref sct@dcs.edinburgh.ac.uk
86 ;; (bibtex-enclosing-field, bibtex-enclosing-reference): leave
87 ;; point unmoved if no enclosing field/reference is found. As a
88 ;; result of changes (3) and (4) bibtex-next-field works properly,
89 ;; even when called from the entry key position.
90 ;; (bibtex-remove-OPT): realign the '=' after removing the 'opt'.
91 ;; (bibtex-clean-entry): always remove any trailing comma from the
92 ;; end of a bibtex entry (these commas get stripped automatically when
93 ;; optional fields are killed by bibtex-kill-optional-field, but can be
94 ;; left if optional fields are removed by other means).
95 ;; (bibtex-x-help) Replace tab with spaces in X menu as noted by
96 ;; khera@cs.duke.edu
97 ;; (bibtex-refile-entry): Added (from brannon@jove.cs.caltech.edu)
98 ;; (bibtex-sort-ignore-string-entries sort-bibtex-entries,
99 ;; map-bibtex-entries): Added variable as requested by
100 ;; gernot@cs.unsw.oz.au, required changes to funs.
101 ;; (bibtex-current-entry-label): Added at request of
102 ;; yasuro@maekawa.is.uec.ac.jp
103 ;; (bibtex-DEAthesis:) Deleted along with corresponding entry from
104 ;; bibtex-x-help per shapiro@corto.inria.fr
105 ;; Moved narrow-to-bibtex-entry from C-c C-n to C-c n (the previous
106 ;; binding was in conflict with the binding for bibtex-pop-next.
107 ;; bug report from [shapiro@corto.inria.fr]
108 ;;
109
110 ;;;
111 ;;; alarson@src.honeywell.com 92-Feb-13
112 ;;; 1. Made bibtex-entry user callable, now prompts for entry type (e.g.
113 ;;; Article), with completion, and bound it to a key. This is now my
114 ;;; preferred way to add most entries.
115 ;;; 2. Made fields of a bibtex entry derived from the alist bibtex-entry-
116 ;;; field-alist.
117 ;;; 3. Fixed handling of escaped double quotes, e.g. "Schr{\"o}dinger".
118 ;;; 4. Fixed bug where unhiding bibtex entries moved point.
119 ;;; 5. Made "field name" specs permit (name . value) for defaulting. E.g.
120 ;;; (setq bibtex-mode-user-optional-fields '(("library" . "alarson")))
121 ;;; will generate the field:
122 ;;; library = "alarson",
123 ;;; 6. Added binding for narrow-to-bibtex-entry
124 ;;; 7. Adding a bibtex entry now runs hook: bibtex-add-entry-hook
125 ;;; 8. Made bibtex-clean-entry fixup text alignment, and eliminated the
126 ;;; dependency on bibtex-enclosing-reference which has a problem with
127 ;;; long entries (e.g. those containing abstracts).
128 ;;;
129 ;;; alarson@src.honeywell.com 92-Jan-31
130 ;;; Added support for: ispell, beginning/end of entry movement, a simple
131 ;;; outline like mode (hide the bodies of bibtex entries), support for
132 ;;; sorting bibtex entries, and maintaining them in sorted order, and
133 ;;; simple buffer validation.
134 ;;; User visible functions added:
135 ;;; ispell-{abstract,bibtex-entry}, {beginning,end}-of-bibtex-entry
136 ;;; hide-bibtex-entry-bodies, sort-bibtex-entries, validate-bibtex-
137 ;;; buffer, find-bibtex-duplicates
138 ;;; user visible variables added:
139 ;;; bibtex-maintain-sorted-entries
140 ;;; new local keybindings:
141 ;;; " tex-insert-quote
142 ;;; C-c$ ispell-bibtex-entry
143 ;;; M-C-a beginning-of-bibtex-entry
144 ;;; M-C-e end-of-bibtex-entry
145 ;;; Mike Newton (newton@gumby.cs.caltech.edu) 90.11.17
146 ;;; * Handle items like
147 ;;; title = poft # "Fifth Tri-quarterly" # random-conf,
148 ;;; and title = {This title is inside curlies}
149 ;;; * added user settable, always present, optional fields
150 ;;; * fixed 'bibtex-find-it's doc string's location
151 ;;; * bibtex-field-text made more general (it wouldn't handle the # construct)
152 ;;; and it now handles a small subset of the {} cases
153
154 ;;; Bengt Martensson, March 6
155 ;;; Adapted to Bibtex 0.99 by updating the optional fields according
156 ;;; to the document BibTeXing, Oren Patashnik, dated January 31, 1988.
157 ;;; Updated documentation strings accordingly. Added (provide 'bibtex).
158 ;;; If bibtex-include-OPT-crossref is non-nil, every entry will have
159 ;;; an OPTcrossref field, analogously for bibtex-include-OPTkey and
160 ;;; bibtex-include-OPTannote. Added bibtex-preamble, bound to ^C^EP,
161 ;;; and also found in X- and sun-menus. Cleaned up the sun-menu
162 ;;; stuff, and made it more uniform with the X-menu stuff. Marc: I
163 ;;; strongly suspect that I broke your parsing... (Or, more
164 ;;; correctly, BibTeX 0.99 broke it.)
165 ;;; Added bibtex-clean-entry-zap-empty-opts, defvar'd to t. If it
166 ;;; is nil, bibtex-clean-entry will leave empty optional fields alone.
167
168 ;;; Marc Shapiro 1-feb-89: integrated changes by Bengt Martensson 88-05-06:
169 ;;; Added Sun menu support. Locally bound to right mouse button in
170 ;;; bibtex-mode. Emacs 18.49 allows local mouse bindings!!
171 ;;; Commented out DEAthesis.
172
173 ;;; Marc Shapiro 6-oct-88
174 ;;; * skip-whitespace replaced by skip-chars-forward
175 ;;; * use indent-to-column instead of inserting tabs (changes to
176 ;;; bibtex-entry, bibtex-make-entry, bibtex-make-OPT-entry, renamed to
177 ;;; bibtex-make-optional-entry)
178 ;;; * C-c C-k deletes the current OPT entry entirely
179 ;;; * C-c C-d replaces text of field with ""
180 ;;; * renamed bibtex-find-it to bibtex-find-text. With arg, now goes to
181 ;;; start of text. Fixed bugs in it.
182
183 ;;; Marc Shapiro 23-sep-88
184 ;;; * bibtex-clean-entry moves past end of entry.
185 ;;; * bibtex-clean-entry signals mandatory fields left empty.
186
187 ;;; Marc Shapiro 18-jul-88
188 ;;; * Fixed bug in bibtex-flash-entry
189 ;;; * Moved all the entry type keystrokes to "C-c C-e something" (instead of
190 ;;; "C-c something" previously) to make room for more. C-c C-e is
191 ;;; supposed to stand for "entry" [idea taken from mail-mode]. Moved
192 ;;; bibtex-pop-previous to C-c C-p and bibtex-pop-next to C-c C-n.
193 ;;; * removed binding for "\e[25~"
194 ;;; * replaced bibtex-clean-optionals by bibtex-clean-entry, bound to
195 ;;; C-c C-c
196
197 ;;; Marc Shapiro 13-jul-88 [based on ideas by Sacha Krakowiak of IMAG]
198 ;;; * bibtex-pop-previous replaces current field with value of
199 ;;; similar field in previous entry. May be called n times in a row
200 ;;; (or with arg n) to pop similar field of n'th previous entry.
201 ;;; There is also a bibtex-pop-next to get similar field of next
202 ;;; entry.
203 ;;; * C-c C-k now kills all empty optional fields of current entry, and
204 ;;; removes "OPT" for those optional fields which have text.
205
206 ;;; Marc Shapiro 14-dec-87
207 ;;; Cosmetic fixes. Fixed small bug in bibtex-move-outside-of-entry.
208 ;;; Skip Montanaro <steinmetz!sprite!montanaro> 7-dec-87, Shapiro 10-dec-87
209 ;;; before inserting an entry, make sure we are outside of a bib entry
210 ;;; Marc Shapiro 3-nov-87
211 ;;; addition for France: DEAthesis
212 ;;; Marc Shapiro 19-oct-1987
213 ;;; add X window menu option; bug fixes. TAB, LFD, C-c " and C-c C-o now
214 ;;; behave consistently; deletion never occurs blindly.
215 ;;; Marc Shapiro <shapiro@inria.inria.fr> 15-oct-1986
216 ;;; align long lines nicely; C-c C-o checks for the "OPT" string;
217 ;;; TAB goes to the end of the string; use lower case; use
218 ;;; run-hooks
219
220 ;;; Bengt Martensson <ubrinf!mond!bengt> 87-06-28
221 ;;; Bengt Martensson <bengt@mathematik.uni-Bremen.de> 87-06-28
222 ;;; Original version
223
224 ;;; Code:
225
226 ;;; NOTE by Marc Shapiro, 14-dec-87:
227 ;;; (bibtex-x-environment) binds an X menu for bibtex mode to x-button-c-right.
228 ;;; Trouble is, in Emacs 18.44 you can't have a mode-specific mouse binding,
229 ;;; so it will remain active in all windows. Yuck!
230
231 (provide 'bibtex)
232
233 ;;; these guys typically don't have autoloads...[alarson:19920131.1548CST]
234 ;;; Check for fboundp first so that if user autoloads them from non standard
235 ;;; places, the users bindings will take precedence.
236 (if (not (fboundp 'tex-insert-quote))
237 (autoload 'tex-insert-quote "tex-mode"))
238 (if (not (fboundp 'sort-subr))
239 (autoload 'sort-subr "sort"))
240
241 ;;; These should be in a more generally accessible location.
242
243 (defun string-equalp (s1 s2)
244 "Like string= except differences in case are ignored."
245 (let ((ss1 (if (symbolp s1) (symbol-name s1) s1))
246 (ss2 (if (symbolp s2) (symbol-name s2) s2)))
247 (and (= (length ss1) (length ss2))
248 (string-equal (upcase ss1) (upcase ss2)))))
249
250 ;;; This should be moved into simple.el, and the functions there modified
251 ;;; to call it rather than doing it themselves.
252 (defun put-string-on-kill-ring (string)
253 "Make STRING be the first element of the kill ring."
254 (setq kill-ring (cons string kill-ring))
255 (if (> (length kill-ring) kill-ring-max)
256 (setcdr (nthcdr (1- kill-ring-max) kill-ring) nil))
257 (setq kill-ring-yank-pointer kill-ring))
258
259
260
261
262 (defvar bibtex-clean-entry-zap-empty-opts t
263 "*If non-nil, bibtex-clean-entry will delete all empty optional fields.")
264
265 (defvar bibtex-include-OPTcrossref t
266 "*If non-nil, all entries will have an OPTcrossref field.")
267 (defvar bibtex-include-OPTkey t
268 "*If non-nil, all entries will have an OPTkey field.")
269 (defvar bibtex-include-OPTannote t
270 "*If non-nil, all entries will have an OPTannote field.")
271
272 ;; note: the user should be allowed to have their own list of always
273 ;; available optional fields. exs: "keywords" "categories"
274
275 (defvar bibtex-mode-user-optional-fields nil ;no default value
276 "*List of optional fields that user want to have as always present
277 when making a bibtex entry. One possibility is for ``keywords''.
278 Entries can be either strings or conses, in which case the car should be
279 string and the cdr the value to be inserted.")
280
281 (defvar bibtex-mode-syntax-table
282 (let ((st (make-syntax-table)))
283 ;; [alarson:19920214.1004CST] make double quote a string quote
284 (modify-syntax-entry ?\" "\"" st)
285 (modify-syntax-entry ?$ "$$ " st)
286 (modify-syntax-entry ?% "< " st)
287 (modify-syntax-entry ?' "w " st)
288 (modify-syntax-entry ?@ "w " st)
289 (modify-syntax-entry ?\\ "\\" st)
290 (modify-syntax-entry ?\f "> " st)
291 (modify-syntax-entry ?\n "> " st)
292 (modify-syntax-entry ?~ " " st)
293 st))
294
295 (defvar bibtex-mode-abbrev-table nil "")
296 (define-abbrev-table 'bibtex-mode-abbrev-table ())
297 (defvar bibtex-mode-map
298 (let ((km (make-sparse-keymap)))
299
300 (define-key km "\t" 'bibtex-find-text)
301 (define-key km "\n" 'bibtex-next-field)
302 (define-key km "\C-c\"" 'bibtex-remove-double-quotes)
303 (define-key km "\C-c\C-c" 'bibtex-clean-entry)
304 (define-key km "\C-c?" 'describe-mode)
305 (define-key km "\C-c\C-p" 'bibtex-pop-previous)
306 (define-key km "\C-c\C-n" 'bibtex-pop-next)
307 (define-key km "\C-c\C-k" 'bibtex-kill-optional-field)
308 (define-key km "\C-c\C-d" 'bibtex-empty-field)
309
310 ;; [alarson:19920131.1543CST]
311 (define-key km "\"" 'tex-insert-quote)
312 (define-key km "\C-c$" 'ispell-bibtex-entry)
313 (define-key km "\M-\C-a" 'beginning-of-bibtex-entry)
314 (define-key km "\M-\C-e" 'end-of-bibtex-entry)
315 (define-key km "\C-c\C-b" 'bibtex-entry)
316 ; (define-key km "\C-cn" 'narrow-to-bibtex-entry)
317
318 (define-key km "\C-c\C-e\C-a" 'bibtex-Article)
319 (define-key km "\C-c\C-e\C-b" 'bibtex-Book)
320 ; (define-key km "\C-c\C-e\C-d" 'bibtex-DEAthesis)
321 (define-key km "\C-c\C-e\C-c" 'bibtex-InProceedings)
322 (define-key km "\C-c\C-e\C-i" 'bibtex-InBook)
323 (define-key km "\C-c\C-ei" 'bibtex-InCollection)
324 (define-key km "\C-c\C-eI" 'bibtex-InProceedings)
325 (define-key km "\C-c\C-e\C-m" 'bibtex-Manual)
326 (define-key km "\C-c\C-em" 'bibtex-MastersThesis)
327 (define-key km "\C-c\C-eM" 'bibtex-Misc)
328 (define-key km "\C-c\C-o" 'bibtex-remove-OPT)
329 (define-key km "\C-c\C-e\C-p" 'bibtex-PhdThesis)
330 (define-key km "\C-c\C-ep" 'bibtex-Proceedings)
331 (define-key km "\C-c\C-eP" 'bibtex-preamble)
332 (define-key km "\C-c\C-e\C-t" 'bibtex-TechReport)
333 (define-key km "\C-c\C-e\C-s" 'bibtex-string)
334 (define-key km "\C-c\C-e\C-u" 'bibtex-Unpublished)
335 km))
336
337 (defvar bibtex-pop-previous-search-point nil
338 "Next point where bibtex-pop-previous should start looking for a similar
339 entry.")
340
341 (defvar bibtex-pop-next-search-point nil
342 "Next point where bibtex-pop-next should start looking for a similar
343 entry.")
344
345 (defvar bibtex-entry-field-alist
346 '(
347 ("Article" . ((("author" "title" "journal" "year")
348 ("volume" "number" "pages" "month" "note"))
349 (("author" "title")
350 ("journal" "year" "volume" "number" "pages"
351 "month" "note"))))
352 ("Book" . ((("author" "title" "publisher" "year")
353 ("editor" "volume" "number" "series" "address"
354 "edition" "month" "note"))))
355 ("Booklet" . ((("title")
356 ("author" "howpublished" "address" "month" "year" "note"))))
357
358 ;; France: Dipl\^{o}me d'Etudes Approfondies (similar to Master's)
359 ; ("DEAthesis" . ((("author" "title" "school" "year")
360 ; ("address" "month" "note"))))
361
362 ("InBook" . ((("author" "title" "chapter" "publisher" "year")
363 ("editor" "pages" "volume" "number" "series" "address"
364 "edition" "month" "type" "note"))
365 (("author" "title" "chapter")
366 ("publisher" "year" "editor" "pages" "volume" "number"
367 "series" "address" "edition" "month" "type" "note"))))
368
369
370 ("InCollection" . ((("author" "title"
371 "booktitle" "publisher" "year")
372 ("editor" "volume" "number" "series" "type" "chapter"
373 "pages" "address" "edition" "month" "note"))
374 (("author" "title")
375 ("booktitle" "publisher" "year"
376 "editor" "volume" "number" "series" "type" "chapter"
377 "pages" "address" "edition" "month" "note"))))
378
379
380 ("InProceedings" . ((("author" "title" "booktitle" "year")
381 ("editor" "volume" "number" "series" "pages"
382 "organization" "publisher" "address" "month" "note"))
383 (("author" "title")
384 ("editor" "volume" "number" "series" "pages"
385 "booktitle" "year"
386 "organization" "publisher" "address" "month" "note"))))
387
388
389 ("Manual" . ((("title")
390 ("author" "organization" "address" "edition" "year"
391 "month" "note"))))
392
393 ("MastersThesis" . ((("author" "title" "school" "year")
394 ("address" "month" "note" "type"))))
395
396 ("Misc" . ((()
397 ("author" "title" "howpublished" "year" "month" "note"))))
398
399 ("PhdThesis" . ((("author" "title" "school" "year")
400 ("address" "month" "type" "note"))))
401
402 ("Proceedings" . ((("title" "year")
403 ("editor" "volume" "number" "series" "publisher"
404 "organization" "address" "month" "note"))))
405
406 ("TechReport" . ((("author" "title" "institution" "year")
407 ("type" "number" "address" "month" "note"))))
408
409 ("Unpublished" . ((("author" "title" "note")
410 ("year" "month"))))
411 )
412
413 "List of (entry-name (required optional) (crossref-required crossref-optional))
414 tripples. If the third element is nil, then the first pair can be used. Required
415 and optional are lists of strings. All entry creation functions use this variable
416 to generate entries, and bibtex-entry ensures the entry type is valid. This
417 variable can be used for example to make bibtex manipulate a different set of entry
418 types, e.g. a crossreference document of organization types.")
419
420
421 ;;; A bibtex file is a sequence of entries, either string definitions
422 ;;; or reference entries. A reference entry has a type part, a
423 ;;; key part, and a comma-separated sequence of fields. A string
424 ;;; entry has a single field. A field has a left and right part,
425 ;;; separated by a '='. The left part is the name, the right part is
426 ;;; the text. Here come the definitions allowing to create and/or parse
427 ;;; entries and fields:
428
429 ;;; fields
430 (defun bibtex-cfield (name text)
431 "Create a regexp for a bibtex field of name NAME and text TEXT"
432 (concat ",[ \t\n]*\\("
433 name
434 "\\)[ \t\n]*=[ \t\n]*\\("
435 text
436 "\\)"))
437 (defconst bibtex-name-in-cfield 1
438 "The regexp subexpression number of the name part in bibtex-cfield.")
439 (defconst bibtex-text-in-cfield 2
440 "The regexp subexpression number of the text part in bibtex-cfield.")
441
442 ;;; KAWATA Yasuro <yasuro@qqqq.maekawa.is.uec.ac.jp> reported bug that "/"
443 ;;; was not premitted in field names. The old value of this var was:
444 ;;; "[A-Za-z][---A-Za-z0-9:_+]*"
445 ;;; According to the LaTeX manual, page 71, the legal values are letters,
446 ;;; digits, and punctuation other than comma. Section 2.1 defines
447 ;;; punctuation as:
448 ;;; .:;,?!`'()[]-/*@
449 ;;; and says that += can be used in normal text. Specifically #$%&~_^\{}
450 ;;; are called out as special chars. Some experimentation with LaTeX
451 ;;; indicates that # and ~ definitely don't work, but that the following
452 ;;; citation does! \cite{a0.:;?!`'()[]-/*@_&$^+=|<>}. I chose here to
453 ;;; permit _ since it was previously allowed, but otherwise to only handle
454 ;;; punc and +=
455 ;;; Amendment: I couldn't get a regexp with both "[]"'s and hyphen to
456 ;;; work. It looks like you need them both to be the first entries in a
457 ;;; regexp pattern. [alarson:19930315.0900CST]
458
459 (defconst bibtex-field-name "[A-Za-z][---A-Za-z0-9.:;?!`'()/*@_+=]*"
460 "Regexp defining the name part of a bibtex field.")
461
462 ;; bibtex-field-text must be able to handle
463 ;; title = "Proc. Fifteenth Annual" # STOC,
464 ;; month = "10~" # jan,
465 ;; year = "{\noopsort{1973c}}1981",
466 ;; month = apr # "-" # may,
467 ;; key = {Volume-2},
468 ;; note = "Volume~2 is listed under Knuth \cite{book-full}"
469 ;; i have added a few of these, but not all! -- MON
470
471 (defconst bibtex-field-const
472 "[0-9A-Za-z][---A-Za-z0-9:_+]*"
473 "Format of a bibtex field constant.")
474
475 (defconst bibtex-field-string
476 (concat
477 "\"[^\"]*[^\\\\]\"\\|\"\"")
478 "Match either a string or an empty string.")
479
480 (defconst bibtex-field-string-or-const
481 (concat bibtex-field-const "\\|" bibtex-field-string)
482 "Match either bibtex-field-string or bibtex-field-const.")
483
484 (defconst bibtex-field-text
485 (concat
486 "\\(" bibtex-field-string-or-const "\\)"
487 "\\([ \t\n]+#[ \t\n]+\\(" bibtex-field-string-or-const "\\)\\)*\\|"
488 "{[^{}]*[^\\\\]}")
489 "Regexp defining the text part of a bibtex field: either a string, or
490 an empty string, or a constant followed by one or more # / constant pairs.
491 Also matches simple {...} patterns.")
492
493 ;(defconst bibtex-field-text
494 ; "\"[^\"]*[^\\\\]\"\\|\"\"\\|[0-9A-Za-z][---A-Za-z0-9:_+]*"
495 ; "Regexp defining the text part of a bibtex field: either a string, or an empty string, or a constant.")
496
497 (defconst bibtex-field
498 (bibtex-cfield bibtex-field-name bibtex-field-text)
499 "Regexp defining the format of a bibtex field")
500
501 (defconst bibtex-name-in-field bibtex-name-in-cfield
502 "The regexp subexpression number of the name part in bibtex-field")
503 (defconst bibtex-text-in-field bibtex-text-in-cfield
504 "The regexp subexpression number of the text part in bibtex-field")
505
506 ;;; references
507 (defconst bibtex-reference-type
508 "@[A-Za-z]+"
509 "Regexp defining the type part of a bibtex reference entry")
510 (defconst bibtex-reference-head
511 (concat "^[ \t]*\\("
512 bibtex-reference-type
513 "\\)[ \t]*[({]\\("
514 bibtex-field-name
515 "\\)")
516 "Regexp defining format of the header line of a bibtex reference entry")
517 (defconst bibtex-type-in-head 1
518 "The regexp subexpression number of the type part in bibtex-reference-head")
519 (defconst bibtex-key-in-head 2
520 "The regexp subexpression number of the key part in
521 bibtex-reference-head")
522
523 (defconst bibtex-reference
524 (concat bibtex-reference-head
525 "\\([ \t\n]*" bibtex-field "\\)*"
526 "[ \t\n]*[})]")
527 "Regexp defining the format of a bibtex reference entry")
528 (defconst bibtex-type-in-reference bibtex-type-in-head
529 "The regexp subexpression number of the type part in bibtex-reference")
530 (defconst bibtex-key-in-reference bibtex-key-in-head
531 "The regexp subexpression number of the key part in
532 bibtex-reference")
533
534 ;;; strings
535 (defconst bibtex-string
536 (concat "^[ \t]*@[sS][tT][rR][iI][nN][gG][ \t\n]*[({][ \t\n]*\\("
537 bibtex-field-name
538 "\\)[ \t\n]*=[ \t\n]*\\("
539 bibtex-field-text
540 "\\)[ \t\n]*[})]")
541 "Regexp defining the format of a bibtex string entry")
542 (defconst bibtex-name-in-string 1
543 "The regexp subexpression of the name part in bibtex-string")
544 (defconst bibtex-text-in-string 2
545 "The regexp subexpression of the text part in bibtex-string")
546
547 (defconst bibtex-name-alignment 2
548 "Alignment for the name part in BibTeX fields.
549 Chosen on aesthetic grounds only.")
550
551 (defconst bibtex-text-alignment (length " organization = ")
552 "Alignment for the text part in BibTeX fields.
553 Equal to the space needed for the longest name part.")
554
555 (defun bibtex-current-entry-label (&optional include-cite kill)
556 "Return the label of the bibtex entry containing, or preceding point.
557 Optional argument INCLUDE-CITE, if true means put a '\\cite{}' around the
558 returned value. Second optional argument KILL, if true, means place the
559 returned value in the kill buffer. Interactively; providing prefix
560 argument makes INCLUDE-CITE true, and kill is true by default.
561
562 Rationale:
563 The intention is that someone will write a function that can be bound to
564 a mouse key so that people entering TeX can just mouse on the bibtex entry
565 and have the citation key inserted at the current point (which will almost
566 certainly be in some other buffer). In the interim this function is
567 marginally useful for keyboard binding and is not bound by default.
568 Suggested binding is ^C-k."
569 (interactive (list current-prefix-arg t))
570 (save-excursion
571 (beginning-of-bibtex-entry)
572 (re-search-forward bibtex-reference-head (save-excursion (end-of-bibtex-entry) (point)))
573 (let* ((key (buffer-substring (match-beginning bibtex-key-in-head)
574 (match-end bibtex-key-in-head)))
575 (val (if include-cite
576 (format "\\cite{%s}" key)
577 key)))
578 (if kill
579 (put-string-on-kill-ring val))
580 val)))
581
582 ;;; bibtex mode:
583
584 ;;;###autoload
585 (defun bibtex-mode ()
586 "Major mode for editing bibtex files.
587
588 \\{bibtex-mode-map}
589
590 A command such as \\[bibtex-Book] will outline the fields for a BibTeX book entry.
591
592 The optional fields start with the string OPT, and thus ignored by BibTeX.
593 The OPT string may be removed from a field with \\[bibtex-remove-OPT].
594 \\[bibtex-kill-optional-field] kills the current optional field entirely.
595 \\[bibtex-remove-double-quotes] removes the double-quotes around the text of
596 the current field. \\[bibtex-empty-field] replaces the text of the current
597 field with the default \"\".
598
599 The command \\[bibtex-clean-entry] cleans the current entry, i.e. (i) removes
600 double-quotes from entirely numerical fields, (ii) removes OPT from all
601 non-empty optional fields, (iii) removes all empty optional fields, and (iv)
602 checks that no non-optional fields are empty.
603
604 Use \\[bibtex-find-text] to position the dot at the end of the current field.
605 Use \\[bibtex-next-field] to move to end of the next field.
606
607 The following may be of interest as well:
608
609 Functions:
610 find-bibtex-duplicates
611 find-bibtex-entry-location
612 hide-bibtex-entry-bodies
613 sort-bibtex-entries
614 validate-bibtex-buffer
615
616 Variables:
617 bibtex-clean-entry-zap-empty-opts
618 bibtex-entry-field-alist
619 bibtex-include-OPTannote
620 bibtex-include-OPTcrossref
621 bibtex-include-OPTkey
622 bibtex-maintain-sorted-entries
623 bibtex-mode-user-optional-fields
624
625 Fields:
626 address
627 Publisher's address
628 annote
629 Long annotation used for annotated bibliographies (begins sentence)
630 author
631 Name(s) of author(s), in BibTeX name format
632 booktitle
633 Book title when the thing being referenced isn't the whole book.
634 For book entries, the title field should be used instead.
635 chapter
636 Chapter number
637 crossref
638 The database key of the entry being cross referenced.
639 edition
640 Edition of a book (e.g., \"second\")
641 editor
642 Name(s) of editor(s), in BibTeX name format.
643 If there is also an author field, then the editor field should be
644 for the book or collection that the work appears in
645 howpublished
646 How something strange has been published (begins sentence)
647 institution
648 Sponsoring institution
649 journal
650 Journal name (macros are provided for many)
651 key
652 Alphabetizing and labeling key (needed when no author or editor)
653 month
654 Month (macros are provided)
655 note
656 To help the reader find a reference (begins sentence)
657 number
658 Number of a journal or technical report
659 organization
660 Organization (sponsoring a conference)
661 pages
662 Page number or numbers (use `--' to separate a range)
663 publisher
664 Publisher name
665 school
666 School name (for theses)
667 series
668 The name of a series or set of books.
669 An individual book will will also have it's own title
670 title
671 The title of the thing being referenced
672 type
673 Type of a technical report (e.g., \"Research Note\") to be used
674 instead of the default \"Technical Report\"
675 volume
676 Volume of a journal or multivolume work
677 year
678 Year---should contain only numerals
679 ---------------------------------------------------------
680 Entry to this mode calls the value of bibtex-mode-hook if that value is
681 non-nil."
682 (interactive)
683 (kill-all-local-variables)
684 (set-syntax-table bibtex-mode-syntax-table)
685 (use-local-map bibtex-mode-map)
686 (setq major-mode 'bibtex-mode)
687 (setq mode-name "BibTeX")
688 (set-syntax-table bibtex-mode-syntax-table)
689 (setq local-abbrev-table bibtex-mode-abbrev-table)
690 (make-local-variable 'paragraph-start)
691 (setq paragraph-start "^[ \f\n\t]*$")
692 (auto-fill-mode 1) ; nice alignments
693 (setq left-margin (+ bibtex-text-alignment 1))
694
695 (run-hooks 'bibtex-mode-hook))
696
697 (defun bibtex-move-outside-of-entry ()
698 "Make sure we are outside of a bib entry"
699 (cond ((or
700 (= (point) (point-max))
701 (= (point) (point-min))
702 (looking-at "[ \n]*@")
703 )
704 t)
705 (t
706 (backward-paragraph)
707 (forward-paragraph)))
708 (re-search-forward "[ \t\n]*" (point-max) t))
709
710 (defun ispell-abstract ()
711 (interactive)
712 (beginning-of-bibtex-entry)
713 (re-search-forward "^[ \t]*[OPT]*abstract[ \t]*=")
714 (ispell-region (point)
715 (save-excursion (forward-sexp) (point))))
716
717 (defun beginning-of-bibtex-entry ()
718 (interactive)
719 (re-search-backward "^@" nil 'move))
720
721 (defun skip-whitespace-and-comments ()
722 ;; It might be a good idea to have forward-sexp with argument 0 do what
723 ;; this function tries to do, namely skip whitespace and comments.
724 ;; Maybe a better name for this would be skip-to-next-sexp.
725 ;; alternative implementation:
726 ;; (let ((parse-sexp-ignore-comments t))
727 ;; (forward-sexp 1)
728 ;; (forward-sexp -1))
729 ;; but I've had problems with this not getting the parse of comments
730 ;; right going backward if they contain unbalanced expressions or string
731 ;; quotes. [alarson:19920217.1021CST]
732 (let ((md (match-data)))
733 (unwind-protect
734 (while (cond ((looking-at "\\s>+\\|\\s +")
735 ;; was whitespace
736 ;; NOTE: also checked end-comment. In latex and
737 ;; lisp modes, newline is an end comment, but it
738 ;; should also be a whitespace char.
739 (goto-char (match-end 0)))
740 ;; If looking at beginning of comment, skip to end.
741 ((looking-at "\\s<")
742 (re-search-forward "\\s>"))))
743 (store-match-data md))))
744
745 ;;; [alarson:19920214.1007CST]
746 (defun end-of-bibtex-entry ()
747 "If inside an entry, move to the end of it, otherwise move to the end
748 of the next entry."
749 (interactive)
750 ;; if point was previously at the end of an entry, this puts us
751 ;; inside the next entry, otherwise we remain in the current one.
752 (progn
753 (skip-whitespace-and-comments)
754 ;;; (skip-chars-forward " \t\n")
755 (end-of-line))
756 (beginning-of-bibtex-entry)
757 (let ((parse-sexp-ignore-comments t))
758 (forward-sexp) ; skip entry type
759 (forward-sexp) ; skip entry body
760 ))
761 ;(defun end-of-bibtex-entry ()
762 ; (interactive)
763 ; (re-search-forward "}$" nil 'move))
764
765 (defun ispell-bibtex-entry ()
766 (interactive)
767 (ispell-region (progn (beginning-of-bibtex-entry) (point))
768 (progn (end-of-bibtex-entry) (point))))
769
770 (defun narrow-to-bibtex-entry ()
771 (interactive)
772 (save-excursion
773 (narrow-to-region (progn (beginning-of-bibtex-entry) (point))
774 (progn (end-of-bibtex-entry) (point)))))
775
776
777 (defun beginning-of-first-bibtex-entry ()
778 (goto-char (point-min))
779 (cond
780 ((re-search-forward "^@" nil 'move)
781 (beginning-of-line))
782 ((and (bobp) (eobp))
783 nil)
784 (t
785 (message "Warning: No bibtex entries found!"))))
786
787 (defun hide-bibtex-entry-bodies (&optional arg)
788 "Hide all lines between first and last bibtex entries not beginning with @.
789 With argument, show all text."
790 (interactive "P")
791 (save-excursion
792 (beginning-of-first-bibtex-entry)
793 ;; subst-char-in-region modifies the buffer, despite what the
794 ;; documentation says...
795 (let ((modifiedp (buffer-modified-p))
796 (buffer-read-only nil))
797 (if arg
798 (subst-char-in-region (point) (point-max) ?\r ?\n t)
799 (while (save-excursion (re-search-forward "\n[^@]" (point-max) t))
800 ;; (save-excursion (replace-regexp "\n\\([^@]\\)" "\r\\1"))
801 (save-excursion
802 (while (re-search-forward "\n\\([^@]\\)" nil t)
803 (replace-match "\r\\1" nil nil)))))
804 (setq selective-display (not arg))
805 (set-buffer-modified-p modifiedp))))
806
807 (defvar bibtex-sort-ignore-string-entries nil
808 "*If true, bibtex @STRING entries are ignored when determining ordering
809 of the buffer (e.g. sorting, locating alphabetical position for new entries,
810 etc.)")
811
812 (defun sort-bibtex-entries ()
813 "Sort bibtex entries alphabetically by key.
814 Text before the first bibtex entry, and following the last is not affected.
815 If bibtex-sort-ignore-string-entries is true, @string entries will be ignored.
816
817 Bugs:
818 1. Text between the closing brace ending one bibtex entry, and the @ starting
819 the next, is considered part of the PRECEDING entry. Perhaps it should be
820 part of the following entry."
821 (interactive)
822 (save-restriction
823 (beginning-of-first-bibtex-entry)
824 (narrow-to-region (point)
825 (save-excursion
826 (goto-char (point-max))
827 (beginning-of-bibtex-entry)
828 (end-of-bibtex-entry)
829 (point)))
830 (sort-subr nil ; reversep
831 ;; beginning of record function
832 'forward-line
833 ;; end of record function
834 (function (lambda () (and (re-search-forward "}\\s-*\n[\n \t]*@" nil 'move)
835 (forward-char -2))))
836 ;; start of key function
837 (if bibtex-sort-ignore-string-entries
838 (function (lambda ()
839 (while (and (re-search-forward "^\\s-*\\([@a-zA-Z]*\\)\\s-*{\\s-*")
840 (string-equalp "@string"
841 (buffer-substring (match-beginning 1)
842 (match-end 1)))))
843 nil))
844 (function (lambda () (re-search-forward "{\\s-*") nil)))
845 ;; end of key function
846 (function (lambda () (search-forward ",")))
847 )))
848
849 (defun map-bibtex-entries (fun)
850 "Call FUN for each bibtex entry starting with the current, to the end of the file.
851 FUN is called with one argument, the key of the entry, and with point inside the entry.
852 If bibtex-sort-ignore-string-entries is true, FUN will not be called for @string entries."
853 (beginning-of-bibtex-entry)
854 (while (re-search-forward "^@[^{]*{[ \t]*\\([^, ]*\\)" nil t)
855 (if (and bibtex-sort-ignore-string-entries
856 (string-equalp "@string{"
857 (buffer-substring (match-beginning 0)
858 (match-beginning 1))))
859 nil ; ignore the @string entry.
860 (funcall fun (buffer-substring (match-beginning 1) (match-end 1))))))
861
862 (defun find-bibtex-entry-location (entry-name)
863 "Searches from beginning of current buffer looking for place to put the
864 bibtex entry named ENTRY-NAME. Buffer is assumed to be in sorted order,
865 without duplicates (see \\[sort-bibtex-entries]), if it is not, an error will
866 be signalled."
867 (interactive "sBibtex entry key: ")
868 (let ((previous nil)
869 point)
870 (beginning-of-first-bibtex-entry)
871 (or (catch 'done
872 (map-bibtex-entries (function (lambda (current)
873 (cond
874 ((string-equal entry-name current)
875 (error "Entry duplicates existing!"))
876 ((or (null previous)
877 (string< previous current))
878 (setq previous current
879 point (point))
880 (if (string< entry-name current)
881 (progn
882 (beginning-of-bibtex-entry)
883 ;; Many schemes append strings to
884 ;; existing entries to resolve them,
885 ;; so initial substring matches may
886 ;; indicate a duplicate entry.
887 (let ((idx (string-match (regexp-quote entry-name) current)))
888 (if (and (integerp idx)
889 (zerop idx))
890 (progn
891 (message "Warning: Entry %s may be a duplicate of %s!"
892 entry-name current)
893 (ding t))))
894 (throw 'done t))))
895 ((string-equal previous current)
896 (error "Duplicate here with previous!"))
897 (t (error "Entries out of order here!")))))))
898 (end-of-bibtex-entry))))
899
900 (defun validate-bibtex-buffer ()
901 "Find some typical errors in bibtex files.
902 1. At signs (@) not as first char of a line.
903 2. Double quotes (\") inside strings.
904 3. Closing braces (}) not the last character of a line."
905 (interactive)
906 (let ((point (point)))
907 (while (re-search-forward ".@" nil t)
908 (let* ((foo (parse-partial-sexp (save-excursion (beginning-of-bibtex-entry)
909 (point))
910 (point)))
911 (in-a-string (nth 3 foo)))
912 (if (not in-a-string)
913 (error "At sign (@) out of place!"))))
914 (goto-char point)
915 (while (search-forward "\"" nil t)
916 (or (looking-at "[,}][ \t]*$")
917 (char-equal (preceding-char) ?\")
918 ;; some versions put closing brace on separate line.
919 (looking-at "[ \t]*\n}")
920 (save-excursion
921 (save-restriction
922 (narrow-to-region (point)
923 (progn (beginning-of-line) (point)))
924 (looking-at "^[ \t]*[a-zA-Z]+[ \t]*=[ \t]*\"$")))
925 (error "Quote out of place, or missing \",\" or \"}\"!")))
926 (goto-char point)
927 ;; This is only approximate, should actually search for close braces,
928 ;; then see if they are inside a string, or at the end of a line.
929 ;; This just gets the typical case of whitespace after a closing brace.
930 (while (search-forward "}[ \t]+$" nil t)
931 (error "Brace not last char of line!"))
932 (goto-char point)
933 (message "Bibtex buffer appears o.k.")))
934
935 (defun find-bibtex-duplicates ()
936 "Searches forward in current buffer looking for duplicate bibtex entries.
937 Buffer is assumed to be sorted, see \\[sort-bibtex-entries]"
938 (interactive)
939 (let ((point (point)))
940 ;; errors if things are not right...
941 (find-bibtex-entry-location (make-string 10 255))
942 (goto-char point)
943 (message "No duplicates found!")))
944
945
946 ;;; assoc doesn't ignore case, so we need an assoc that does...
947 (defun assoc-string-equalp (thing alist)
948 (or (assoc thing alist)
949 (while (and alist
950 (not (string-equalp thing (car (car alist)))))
951 (setq alist (cdr alist)))
952 (car alist)))
953
954 (defvar bibtex-maintain-sorted-entries nil
955 "*If true, bibtex-mode will attempt to maintain all bibtex entries in
956 sorted order.
957
958 Note that this is more a property of a file than a personal preference and
959 as such should normally be set via a file local variable entry.")
960
961 (defun bibtex-entry (entry-type &optional required optional)
962 (interactive (let* ((completion-ignore-case t)
963 (e-t (completing-read "Entry Type: " bibtex-entry-field-alist
964 nil t)))
965 (list e-t)))
966 (if (and (null required) (null optional))
967 (let* ((e (assoc-string-equalp entry-type bibtex-entry-field-alist))
968 (r-n-o (elt e 1))
969 (c-ref (elt e 2)))
970 (if (null e)
971 (error "Bibtex entry type %s not defined!"))
972 (if (and bibtex-include-OPTcrossref c-ref)
973 (setq required (elt c-ref 0)
974 optional (elt c-ref 1))
975 (setq required (elt r-n-o 0)
976 optional (elt r-n-o 1)))))
977 (let ((key (if bibtex-maintain-sorted-entries
978 (read-string (format "%s key: " entry-type)))))
979 (if key
980 (find-bibtex-entry-location key))
981 (bibtex-move-outside-of-entry)
982 (insert "@" entry-type "{")
983 (if key
984 (insert key))
985 (save-excursion
986 (mapcar 'bibtex-make-field required)
987 (if bibtex-include-OPTcrossref
988 (bibtex-make-optional-field "crossref"))
989 (if bibtex-include-OPTkey
990 (bibtex-make-optional-field "key"))
991 (mapcar 'bibtex-make-optional-field optional)
992 (mapcar 'bibtex-make-optional-field
993 bibtex-mode-user-optional-fields)
994 (if bibtex-include-OPTannote
995 (bibtex-make-optional-field "annote"))
996 (insert "\n}\n\n"))
997 (if key
998 (bibtex-next-field t))
999 (run-hooks 'bibtex-add-entry-hook)))
1000
1001 ;; (defun bibtex-entry (entry-type required optional)
1002 ;; (bibtex-move-outside-of-entry)
1003 ;; (insert (concat "@" entry-type "{,\n\n}\n\n"))
1004 ;; (previous-line 3)
1005 ;; (insert (mapconcat 'bibtex-make-entry required ",\n"))
1006 ;; (if required
1007 ;; (if optional
1008 ;; (insert ",\n")))
1009 ;; (insert (mapconcat 'bibtex-make-OPT-entry optional ",\n"))
1010 ;; (if bibtex-mode-user-optional-fields ;MON...
1011 ;; (progn
1012 ;; (if optional
1013 ;; (insert ",\n"))
1014 ;; (insert (mapconcat 'bibtex-make-OPT-entry
1015 ;; bibtex-mode-user-optional-fields
1016 ;; ",\n")))) ;MON
1017 ;; (up-list -1)
1018 ;; (forward-char 1))
1019
1020
1021 (defun bibtex-make-field (e-t)
1022 (interactive "sBibTeX entry type: ")
1023 (let ((name (if (consp e-t) (car e-t) e-t))
1024 (value (if (consp e-t) (cdr e-t) "")))
1025 (insert ",\n")
1026 (indent-to-column bibtex-name-alignment)
1027 (insert name " = ")
1028 (indent-to-column bibtex-text-alignment)
1029 ;; lucid emacs prin1-to-string breaks the undo chain. When they fix
1030 ;; that, the hack can be removed. [alarson:19930316.0805CST]
1031 ; (insert (prin1-to-string value))
1032 ;; begin hack
1033 (insert (format (if (stringp value) "\"%s\"" "%s")
1034 value))
1035 ;; end hack
1036 nil))
1037
1038 (defun bibtex-make-optional-field (e-t)
1039 (interactive "sOptional BibTeX entry type: ")
1040 (if (consp e-t)
1041 (setq e-t (cons (concat "OPT" (car e-t)) (cdr e-t)))
1042 (setq e-t (concat "OPT" e-t)))
1043 (bibtex-make-field e-t))
1044
1045 ;; What to do about crossref? if present, journal and year are
1046 ;; both optional. Due to this, i move all of them into optional. -- MON
1047
1048 (defun bibtex-Article ()
1049 (interactive)
1050 (bibtex-entry "Article"))
1051
1052 (defun bibtex-Book ()
1053 (interactive)
1054 (bibtex-entry "Book"))
1055
1056 (defun bibtex-Booklet ()
1057 (interactive)
1058 (bibtex-entry "Booklet"))
1059
1060 ;(defun bibtex-DEAthesis ()
1061 ; (interactive)
1062 ; (bibtex-entry "DEAthesis"))
1063
1064 (defun bibtex-InBook ()
1065 (interactive)
1066 (bibtex-entry "InBook"))
1067
1068 (defun bibtex-InCollection ()
1069 (interactive)
1070 (bibtex-entry "InCollection"))
1071
1072 (defun bibtex-InProceedings ()
1073 (interactive)
1074 (bibtex-entry "InProceedings"))
1075
1076 (defun bibtex-Manual ()
1077 (interactive)
1078 (bibtex-entry "Manual"))
1079
1080 (defun bibtex-MastersThesis ()
1081 (interactive)
1082 (bibtex-entry "MastersThesis"))
1083
1084 (defun bibtex-Misc ()
1085 (interactive)
1086 (bibtex-entry "Misc"))
1087
1088 (defun bibtex-PhdThesis ()
1089 (interactive)
1090 (bibtex-entry "PhdThesis"))
1091
1092 (defun bibtex-Proceedings ()
1093 (interactive)
1094 (bibtex-entry "Proceedings"))
1095
1096 (defun bibtex-TechReport ()
1097 (interactive)
1098 (bibtex-entry "TechReport"))
1099
1100 (defun bibtex-Unpublished ()
1101 (interactive)
1102 (bibtex-entry "Unpublished"))
1103
1104 (defun bibtex-string ()
1105 (interactive)
1106 (bibtex-move-outside-of-entry)
1107 (insert "@string{ = \"\"}\n")
1108 (previous-line 1)
1109 (forward-char 8))
1110
1111 (defun bibtex-preamble ()
1112 (interactive)
1113 (bibtex-move-outside-of-entry)
1114 (insert "@Preamble{}\n")
1115 (previous-line 1)
1116 (forward-char 10))
1117 \f
1118 (defun bibtex-next-field (arg)
1119 "Finds end of text of next BibTeX field; with arg, to its beginning"
1120 (interactive "P")
1121 (bibtex-inside-field)
1122 (let ((start (point)))
1123 (condition-case ()
1124 (progn
1125 (bibtex-enclosing-field)
1126 (goto-char (match-end 0))
1127 (forward-char 2))
1128 (error
1129 (goto-char start)
1130 (end-of-line)
1131 (forward-char 1))))
1132 (bibtex-find-text arg))
1133
1134 ;; (defun bibtex-next-field ()
1135 ;; "Finds end of text of next field."
1136 ;; (interactive)
1137 ;; (condition-case ()
1138 ;; (progn
1139 ;; (bibtex-inside-field)
1140 ;; (re-search-forward ",[ \t\n]*" (point-max) 1)
1141 ;; (bibtex-enclosing-field)
1142 ;; (bibtex-inside-field))
1143 ;; (error nil)))
1144
1145 (defun bibtex-find-text (arg)
1146 "Go to end of text of current field; with arg, go to beginning."
1147 (interactive "P")
1148 (bibtex-inside-field)
1149 (bibtex-enclosing-field)
1150 (if arg
1151 (progn
1152 (goto-char (match-beginning bibtex-text-in-field))
1153 (if (looking-at "\"")
1154 (forward-char 1)))
1155 (goto-char (match-end bibtex-text-in-field))
1156 (if (= (preceding-char) ?\")
1157 (forward-char -1))))
1158
1159 ;; (defun bibtex-find-text ()
1160 ;; "Go to end of text of current field."
1161 ;; (interactive)
1162 ;; (condition-case ()
1163 ;; (progn
1164 ;; (bibtex-inside-field)
1165 ;; (bibtex-enclosing-field)
1166 ;; (goto-char (match-end bibtex-text-in-field))
1167 ;; (bibtex-inside-field))
1168 ;; (error nil)))
1169
1170 (defun bibtex-remove-OPT ()
1171 "Removes the 'OPT' starting optional arguments and goes to end of text"
1172 (interactive)
1173 (bibtex-inside-field)
1174 (bibtex-enclosing-field)
1175 (save-excursion
1176 (goto-char (match-beginning bibtex-name-in-field))
1177 (if (looking-at "OPT")
1178 ;; sct@dcs.edinburgh.ac.uk
1179 (progn
1180 (delete-char (length "OPT"))
1181 (search-forward "=")
1182 (delete-horizontal-space)
1183 (indent-to-column bibtex-text-alignment))))
1184 (bibtex-inside-field))
1185
1186 (defun bibtex-inside-field ()
1187 "Try to avoid point being at end of a bibtex field."
1188 (interactive)
1189 (end-of-line)
1190 (skip-chars-backward " \t") ;MON - maybe delete these chars?
1191 (cond ((= (preceding-char) ?,)
1192 (forward-char -2))) ; -1 --> -2 sct@dcs.edinburgh.ac.uk
1193 (cond ((= (preceding-char) ?\")
1194 (forward-char -1)))) ;MON - only go back if quote
1195
1196 (defun bibtex-remove-double-quotes ()
1197 "Removes \"\" around string."
1198 (interactive)
1199 (save-excursion
1200 (bibtex-inside-field)
1201 (bibtex-enclosing-field)
1202 (let ((start (match-beginning bibtex-text-in-field))
1203 (stop (match-end bibtex-text-in-field)))
1204 (goto-char stop)
1205 (forward-char -1)
1206 (if (looking-at "\"")
1207 (delete-char 1))
1208 (goto-char start)
1209 (if (looking-at "\"")
1210 (delete-char 1)))))
1211
1212 (defun bibtex-kill-optional-field ()
1213 "Kill the entire enclosing optional BibTeX field"
1214 (interactive)
1215 (bibtex-inside-field)
1216 (bibtex-enclosing-field)
1217 (goto-char (match-beginning bibtex-name-in-field))
1218 (let ((the-end (match-end 0))
1219 (the-beginning (match-beginning 0)))
1220 (if (looking-at "OPT")
1221 (progn
1222 (goto-char the-end)
1223 (skip-chars-forward " \t\n,")
1224 (kill-region the-beginning the-end))
1225 (error "Mandatory fields can't be killed"))))
1226
1227 (defun bibtex-empty-field ()
1228 "Delete the text part of the current field, replace with empty text"
1229 (interactive)
1230 (bibtex-inside-field)
1231 (bibtex-enclosing-field)
1232 (goto-char (match-beginning bibtex-text-in-field))
1233 (kill-region (point) (match-end bibtex-text-in-field))
1234 (insert "\"\"")
1235 (bibtex-find-text t))
1236
1237 \f
1238 (defun bibtex-pop-previous (arg)
1239 "Replace text of current field with the text of similar field in previous entry.
1240 With arg, go up ARG entries. Repeated, goes up so many times. May be
1241 intermixed with \\[bibtex-pop-next] (bibtex-pop-next)."
1242 (interactive "p")
1243 (bibtex-inside-field)
1244 (save-excursion
1245 ; parse current field
1246 (bibtex-enclosing-field)
1247 (let ((start-old-text (match-beginning bibtex-text-in-field))
1248 (stop-old-text (match-end bibtex-text-in-field))
1249 (start-name (match-beginning bibtex-name-in-field))
1250 (stop-name (match-end bibtex-name-in-field))
1251 (new-text))
1252 (goto-char start-name)
1253 ; construct regexp for previous field with same name as this one
1254 (let ((matching-entry
1255 (bibtex-cfield
1256 (buffer-substring (if (looking-at "OPT")
1257 (+ (point) (length "OPT"))
1258 (point))
1259 stop-name)
1260 bibtex-field-text)))
1261
1262 ; if executed several times in a row, start each search where the
1263 ; last one finished
1264 (cond ((or (eq last-command 'bibtex-pop-previous)
1265 (eq last-command 'bibtex-pop-next))
1266 t
1267 )
1268 (t
1269 (bibtex-enclosing-reference)
1270 (setq bibtex-pop-previous-search-point (match-beginning 0))
1271 (setq bibtex-pop-next-search-point (match-end 0))))
1272 (goto-char bibtex-pop-previous-search-point)
1273
1274 ; Now search for arg'th previous similar field
1275 (cond
1276 ((re-search-backward matching-entry (point-min) t arg)
1277 (setq new-text
1278 (buffer-substring (match-beginning bibtex-text-in-cfield)
1279 (match-end bibtex-text-in-cfield)))
1280 ; Found a matching field. Remember boundaries.
1281 (setq bibtex-pop-next-search-point (match-end 0))
1282 (setq bibtex-pop-previous-search-point (match-beginning 0))
1283 (bibtex-flash-head)
1284 ; Go back to where we started, delete old text, and pop new.
1285 (goto-char stop-old-text)
1286 (delete-region start-old-text stop-old-text)
1287 (insert new-text))
1288 (t ; search failed
1289 (error "No previous matching BibTeX field."))))))
1290 (setq this-command 'bibtex-pop-previous))
1291
1292 (defun bibtex-pop-next (arg)
1293 "Replace text of current field with the text of similar field in next entry.
1294 With arg, go up ARG entries. Repeated, goes up so many times. May be
1295 intermixed with \\[bibtex-pop-previous] (bibtex-pop-previous)."
1296 (interactive "p")
1297 (bibtex-inside-field)
1298 (save-excursion
1299 ; parse current field
1300 (bibtex-enclosing-field)
1301 (let ((start-old-text (match-beginning bibtex-text-in-field))
1302 (stop-old-text (match-end bibtex-text-in-field))
1303 (start-name (match-beginning bibtex-name-in-field))
1304 (stop-name (match-end bibtex-name-in-field))
1305 (new-text))
1306 (goto-char start-name)
1307 ; construct regexp for next field with same name as this one,
1308 ; ignoring possible OPT's
1309 (let ((matching-entry
1310 (bibtex-cfield
1311 (buffer-substring (if (looking-at "OPT")
1312 (+ (point) (length "OPT"))
1313 (point))
1314 stop-name)
1315 bibtex-field-text)))
1316
1317 ; if executed several times in a row, start each search where the
1318 ; last one finished
1319 (cond ((or (eq last-command 'bibtex-pop-next)
1320 (eq last-command 'bibtex-pop-previous))
1321 t
1322 )
1323 (t
1324 (bibtex-enclosing-reference)
1325 (setq bibtex-pop-previous-search-point (match-beginning 0))
1326 (setq bibtex-pop-next-search-point (match-end 0))))
1327 (goto-char bibtex-pop-next-search-point)
1328
1329 ; Now search for arg'th next similar field
1330 (cond
1331 ((re-search-forward matching-entry (point-max) t arg)
1332 (setq new-text
1333 (buffer-substring (match-beginning bibtex-text-in-cfield)
1334 (match-end bibtex-text-in-cfield)))
1335 ; Found a matching field. Remember boundaries.
1336 (setq bibtex-pop-next-search-point (match-end 0))
1337 (setq bibtex-pop-previous-search-point (match-beginning 0))
1338 (bibtex-flash-head)
1339 ; Go back to where we started, delete old text, and pop new.
1340 (goto-char stop-old-text)
1341 (delete-region start-old-text stop-old-text)
1342 (insert new-text))
1343 (t ; search failed
1344 (error "No next matching BibTeX field."))))))
1345 (setq this-command 'bibtex-pop-next))
1346
1347 (defun bibtex-flash-head ()
1348 "Flash at BibTeX reference head before point, if exists. (Moves point)."
1349 (let ((flash))
1350 (cond ((re-search-backward bibtex-reference-head (point-min) t)
1351 (goto-char (match-beginning bibtex-type-in-head))
1352 (setq flash (match-end bibtex-key-in-reference)))
1353 (t
1354 (end-of-line)
1355 (skip-chars-backward " \t")
1356 (setq flash (point))
1357 (beginning-of-line)
1358 (skip-chars-forward " \t")))
1359 (if (pos-visible-in-window-p (point))
1360 (sit-for 1)
1361 (message "From: %s"
1362 (buffer-substring (point) flash)))))
1363
1364
1365 \f
1366 (defun bibtex-enclosing-field ()
1367 "Search for BibTeX field enclosing point.
1368 Point moves to end of field; also, use match-beginning and match-end
1369 to parse the field."
1370 ;; sct@dcs.edinburgh.ac.uk
1371 (let ((old-point (point)))
1372 (condition-case errname
1373 (bibtex-enclosing-regexp bibtex-field)
1374 (search-failed
1375 (goto-char old-point)
1376 (error "Can't find enclosing BibTeX field.")))))
1377
1378 (defun bibtex-enclosing-reference ()
1379 "Search for BibTeX reference enclosing point.
1380 Point moves to end of reference; also, use match-beginning and match-end
1381 to parse the reference."
1382 ;; sct@dcs.edinburgh.ac.uk
1383 (let ((old-point (point)))
1384 (condition-case errname
1385 (bibtex-enclosing-regexp bibtex-reference)
1386 (search-failed
1387 (goto-char old-point)
1388 (error "Can't find enclosing BibTeX reference.")))))
1389
1390 (defun bibtex-enclosing-regexp (regexp)
1391 "Search for REGEXP enclosing point.
1392 Point moves to end of REGEXP. See also match-beginning and match-end.
1393 If an enclosing REGEXP is not found, signals search-failed; point is left in
1394 an undefined location.
1395
1396 [Doesn't something like this exist already?]"
1397
1398 (interactive "sRegexp: ")
1399 ; compute reasonable limits for the loop
1400 (let* ((initial (point))
1401 (right (if (re-search-forward regexp (point-max) t)
1402 (match-end 0)
1403 (point-max)))
1404 (left
1405 (progn
1406 (goto-char initial)
1407 (if (re-search-backward regexp (point-min) t)
1408 (match-beginning 0)
1409 (point-min)))))
1410 ; within the prescribed limits, loop until a match is found
1411 (goto-char left)
1412 (re-search-forward regexp right nil 1)
1413 (if (> (match-beginning 0) initial)
1414 (signal 'search-failed (list regexp)))
1415 (while (<= (match-end 0) initial)
1416 (re-search-forward regexp right nil 1)
1417 (if (> (match-beginning 0) initial)
1418 (signal 'search-failed (list regexp))))
1419 ))
1420
1421 (defun bibtex-clean-entry ()
1422 "For all optional fields of current BibTeX entry: if empty, kill the whole field; otherwise, remove the \"OPT\" string in the name; if text numerical, remove double-quotes. For all mandatory fields: if empty, signal error."
1423 (interactive)
1424 (beginning-of-bibtex-entry)
1425 (let ((start (point)))
1426 (save-restriction
1427 (narrow-to-region start (save-excursion (end-of-bibtex-entry) (point)))
1428 (while (re-search-forward bibtex-field (point-max) t 1)
1429 (let ((begin-field (match-beginning 0))
1430 (end-field (match-end 0))
1431 (begin-name (match-beginning bibtex-name-in-field))
1432 (end-name (match-end bibtex-name-in-field))
1433 (begin-text (match-beginning bibtex-text-in-field))
1434 (end-text (match-end bibtex-text-in-field))
1435 )
1436 (goto-char begin-name)
1437 (cond ((and
1438 (looking-at "OPT")
1439 bibtex-clean-entry-zap-empty-opts)
1440 (goto-char begin-text)
1441 (if (looking-at "\"\"") ; empty: delete whole field
1442 (delete-region begin-field end-field)
1443 ; otherwise: not empty, delete "OPT"
1444 (goto-char begin-name)
1445 (delete-char (length "OPT"))
1446 (progn
1447 ;; fixup alignment. [alarson:19920309.2047CST]
1448 (search-forward "=")
1449 (delete-horizontal-space)
1450 (indent-to-column bibtex-text-alignment))
1451 (goto-char begin-field) ; and loop to go through next test
1452 ))
1453 (t
1454 (goto-char begin-text)
1455 (cond ((looking-at "\"[0-9]+\"") ; if numerical,
1456 (goto-char end-text)
1457 (delete-char -1) ; delete enclosing double-quotes
1458 (goto-char begin-text)
1459 (delete-char 1)
1460 (goto-char end-field) ; go to end for next search
1461 (forward-char -2) ; to compensate for the 2 quotes deleted
1462 )
1463 ((looking-at "\"\"") ; if empty quotes, complain
1464 (forward-char 1)
1465 (if (not (or (equal (buffer-substring
1466 begin-name
1467 (+ begin-name 3))
1468 "OPT")
1469 (equal (buffer-substring
1470 begin-name
1471 (+ begin-name 3))
1472 "opt")))
1473 (error "Mandatory field ``%s'' is empty"
1474 (buffer-substring begin-name end-name))))
1475 (t
1476 (goto-char end-field))))))))
1477 (goto-char start)
1478 (end-of-bibtex-entry)
1479 ;; sct@dcs.edinburgh.ac.uk
1480 (save-excursion
1481 (previous-line 1)
1482 (end-of-line)
1483 (if (eq (preceding-char) ?,)
1484 (backward-delete-char 1)))
1485 (skip-whitespace-and-comments)))
1486
1487 \f
1488 ;;; Menus for bibtex mode
1489
1490 (define-key bibtex-mode-map [menu-bar entry-types]
1491 (cons "Entry Types" (make-sparse-keymap "Entry Types")))
1492
1493 (define-key bibtex-mode-map [menu-bar entry-types bibtex-InProceedings]
1494 '(" article in conference Proceedings " . bibtex-InProceedings))
1495 (define-key bibtex-mode-map [menu-bar entry-types bibtex-Article]
1496 '(" Article in journal " . bibtex-Article))
1497 (define-key bibtex-mode-map [menu-bar entry-types bibtex-Book]
1498 '(" Book " . bibtex-Book))
1499 (define-key bibtex-mode-map [menu-bar entry-types bibtex-Booklet]
1500 '(" Booklet " . bibtex-Booklet))
1501 (define-key bibtex-mode-map [menu-bar entry-types bibtex-InProceedings]
1502 '(" Conference " . bibtex-InProceedings))
1503 (define-key bibtex-mode-map [menu-bar entry-types bibtex-MastersThesis]
1504 '(" Master's Thesis " . bibtex-MastersThesis))
1505 ;define-key bibtex-mode-map [menu-bar entry-types bibtex-DEAthesis]
1506 ;'((" DEA Thesis " . bibtex-DEAthesis))
1507 (define-key bibtex-mode-map [menu-bar entry-types bibtex-PhdThesis]
1508 '(" Phd. Thesis " . bibtex-PhdThesis))
1509 (define-key bibtex-mode-map [menu-bar entry-types bibtex-TechReport]
1510 '(" Technical Report " . bibtex-TechReport))
1511 (define-key bibtex-mode-map [menu-bar entry-types bibtex-Manual]
1512 '(" technical Manual " . bibtex-Manual))
1513 (define-key bibtex-mode-map [menu-bar entry-types bibtex-Proceedings]
1514 '(" conference Proceedings " . bibtex-Proceedings))
1515 (define-key bibtex-mode-map [menu-bar entry-types bibtex-InBook]
1516 '(" a chapter in a Book " . bibtex-InBook))
1517 (define-key bibtex-mode-map [menu-bar entry-types bibtex-InCollection]
1518 '(" an article in a Collection " . bibtex-InCollection))
1519 (define-key bibtex-mode-map [menu-bar entry-types bibtex-Misc]
1520 '(" miscellaneous " . bibtex-Misc))
1521 (define-key bibtex-mode-map [menu-bar entry-types bibtex-Unpublished]
1522 '(" unpublished " . bibtex-Unpublished))
1523 (define-key bibtex-mode-map [menu-bar entry-types bibtex-string]
1524 '(" string " . bibtex-string))
1525 (define-key bibtex-mode-map [menu-bar entry-types bibtex-preamble]
1526 '(" preamble " . bibtex-preamble))
1527
1528 (define-key bibtex-mode-map [menu-bar move/edit]
1529 (cons "Bibtex Edit" (make-sparse-keymap "Bibtex Edit")))
1530
1531 (define-key bibtex-mode-map [menu-bar move/edit bibtex-next-field]
1532 '(" next field " . bibtex-next-field))
1533 (define-key bibtex-mode-map [menu-bar move/edit bibtex-find-text]
1534 '(" to end of field " . bibtex-find-text))
1535 (define-key bibtex-mode-map [menu-bar move/edit bibtex-pop-previous]
1536 '("snatch from similar preceding field" . bibtex-pop-previous))
1537 (define-key bibtex-mode-map [menu-bar move/edit bibtex-pop-next]
1538 '("snatch from similar following field" . bibtex-pop-next))
1539 (define-key bibtex-mode-map [menu-bar move/edit bibtex-remove-OPT]
1540 '(" remove OPT " . bibtex-remove-OPT))
1541 (define-key bibtex-mode-map [menu-bar move/edit bibtex-remove-double-quotes]
1542 '(" remove quotes " . bibtex-remove-double-quotes))
1543 (define-key bibtex-mode-map [menu-bar move/edit bibtex-clean-entry]
1544 '(" clean up entry " . bibtex-clean-entry))
1545 (define-key bibtex-mode-map [menu-bar move/edit find-bibtex-duplicates]
1546 '(" find duplicates " . find-bibtex-duplicates))
1547 (define-key bibtex-mode-map [menu-bar move/edit sort-bibtex-entries]
1548 '(" sort entries " . sort-bibtex-entries))
1549 (define-key bibtex-mode-map [menu-bar move/edit validate-bibtex-buffer]
1550 '(" validate entries " . validate-bibtex-buffer))
1551 \f
1552
1553 ;; Please don't send anything to bug-gnu-emacs about these Sunwindows functions
1554 ;; since we aren't interested. See etc/SUN-SUPPORT for the reasons why
1555 ;; we consider this nothing but a distraction from our work.
1556
1557 ;(defmacro eval-in-menu-window (&rest l)
1558 ; "Evaluates its argument in the window in which the mouse button was pressed."
1559 ; (list 'eval-in-window '*menu-window* l))
1560
1561 ;(defmenu bibtex-sun-entry-menu
1562 ; ("Article In Conf. Proc." eval-in-menu-window bibtex-InProceedings)
1563 ; ("Article In Journal" eval-in-menu-window bibtex-Article)
1564 ; ("Book" eval-in-menu-window bibtex-Book)
1565 ; ("Booklet" eval-in-menu-window bibtex-Booklet)
1566 ; ("Master's Thesis" eval-in-menu-window bibtex-MastersThesis)
1567 ; ("PhD. Thesis" eval-in-menu-window bibtex-PhdThesis)
1568 ; ("Technical Report" eval-in-menu-window bibtex-TechReport)
1569 ; ("Technical Manual" eval-in-menu-window bibtex-Manual)
1570 ; ("Conference Proceedings" eval-in-menu-window bibtex-Proceedings)
1571 ; ("In A Book" eval-in-menu-window bibtex-InBook)
1572 ; ("In A Collection" eval-in-menu-window bibtex-InCollection)
1573 ; ("Miscellaneous" eval-in-menu-window bibtex-Misc)
1574 ; ("Unpublished" eval-in-menu-window bibtex-Unpublished)
1575 ; ("string" eval-in-menu-window bibtex-string)
1576 ; ("preamble" eval-in-menu-window bibtex-preamble))
1577 ;
1578 ;(defmenu bibtex-sun-menu
1579 ; ("BibTeX menu")
1580 ; ("add entry" . bibtex-sun-entry-menu)
1581 ; ("next field" eval-in-menu-window bibtex-next-field nil)
1582 ; ("to end of field" eval-in-menu-window bibtex-find-text nil)
1583 ; ("snatch similar preceding field" eval-in-menu-window bibtex-pop-previous 1)
1584 ; ("snatch similar following field" eval-in-menu-window bibtex-pop-next 1)
1585 ; ("remove OPT" eval-in-menu-window bibtex-remove-OPT)
1586 ; ("remove quotes" eval-in-menu-window bibtex-remove-double-quotes)
1587 ; ("clean entry" eval-in-menu-window bibtex-clean-entry)
1588 ; ("describe BibTeX mode" eval-in-menu-window describe-mode)
1589 ; ("Main Emacs menu" . emacs-menu))
1590
1591 ;(defun bibtex-sun-menu-eval (window x y)
1592 ; "Pop-up menu of BibTeX commands."
1593 ; (sun-menu-evaluate window (1+ x) (1- y) 'bibtex-sun-menu))
1594 ;
1595 ;(defun bibtex-sun-environment ()
1596 ; "Set up sun menus for BibTeX mode. Call it as bibtex-mode-hook, or
1597 ;interactively"
1598 ; (interactive)
1599 ; (local-set-mouse '(text right) 'bibtex-sun-menu-eval))
1600 ;
1601
1602 ;;; bibtex.el ends here