summaryrefslogtreecommitdiff
path: root/lisp/km-bib.el
blob: 9625ff89ef683370cf20dd5700ca039e37e8d972 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
;;; km-bib.el --- Bibliography configuration

;; Copyright (C) 2012-2020 Kyle Meyer <kyle@kyleam.com>

;; Author: Kyle Meyer <kyle@kyleam.com>
;; URL: https://git.kyleam.com/emacs.d

;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

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

;; You should have received a copy of the GNU General Public License
;; along with this program.  If not, see <http://www.gnu.org/licenses/>.

;;; Code:

(require 'bibtex)
(require 'dash)
(require 'org)

(defvar km/bibtex-unimportant-title-words
  '("a" "an" "and" "as" "at" "but" "by" "for" "in" "nor"
    "of" "on" "or" "out" "so" "the" "to" "up" "yet")
  "Words to ignore when running `km/bibtex-use-title-case'.")

(defun km/bibtex-use-title-case ()
  "Convert title of current BibTeX entry to title case.
Change words in `km/bibtex-unimportant-title-words' to lower
case, unless the word is the first word in the title.  Capitalize
all other words unless they are protected by brackets."
  (save-excursion
    (bibtex-beginning-of-entry)
    (let ((bounds (bibtex-search-forward-field "title" t)))
      (when bounds
        (let* ((beg (1+ (bibtex-start-of-text-in-field bounds)))
               (end (1- (bibtex-end-of-text-in-field bounds)))
               (title-words (split-string
                             (buffer-substring-no-properties beg end)))
               (cap-if-letter
                (lambda (word)
                  (let ((case-fold-search nil))
                    (if (string-match-p "\\`[a-z]" word)
                        (capitalize word)
                      word))))
               (choose-case
                (lambda (word)
                  (funcall (if (member (downcase word)
                                       km/bibtex-unimportant-title-words)
                               #'downcase
                             cap-if-letter)
                           word))))
          (goto-char beg)
          (delete-region beg end)
          (insert (mapconcat
                   #'identity
                   (cons (funcall cap-if-letter (car title-words))
                         (mapcar choose-case (cdr title-words)))
                   " "))
          (fill-paragraph))))))

(defun km/bibtex-single-space-author-list ()
  "Convert multiple spaces in author list to single space."
  (save-excursion
    (bibtex-beginning-of-entry)
    (let* ((bounds (bibtex-search-forward-field "author" t))
           (beg (bibtex-start-of-text-in-field bounds)))
      (when bounds
        (goto-char beg)
        (while (re-search-forward "\\(\\s-+\\) and"
                                  (bibtex-end-of-text-in-field bounds) t)
          (replace-match "" nil nil nil 1))
        (goto-char beg)
        (fill-paragraph)))))

(defun km/bibtex-set-coding-system ()
  (set-buffer-file-coding-system 'utf-8))

(defun km/bibtex-remove-entry-space ()
  "Remove space in entry header.
For example, convert

  @article {

to

  @article{"
  (save-excursion
    (bibtex-beginning-of-entry)
    (when (looking-at "@\\w+\\(\\s-+\\)")
      (replace-match "" nil nil nil 1))))

(defun km/bibtex-downcase-entry ()
  (save-excursion
    (bibtex-beginning-of-entry)
    (when (looking-at "^@\\([^{]+\\){")
      (replace-match (downcase (match-string-no-properties 1))
                     'fixedcase nil nil 1))))

(defun km/bibtex-pages-use-double-hyphen ()
  "Use double hyphen for page range."
  (save-excursion
    (bibtex-beginning-of-entry)
    (let ((bounds (bibtex-search-forward-field "pages" t)))
      (when bounds
        (goto-char (bibtex-start-of-text-in-field bounds))
        (and (re-search-forward "[^A-z0-9]*-[^A-z0-9]*"
                                (bibtex-end-of-text-in-field bounds) t)
             (replace-match "--"))))))

(defun km/bibtex-remove-doi-leader ()
  "Remove leading part (http:...) of doi URL."
  (save-excursion
    (bibtex-beginning-of-entry)
    (let ((bounds (bibtex-search-forward-field "doi" t)))
      (when bounds
        (goto-char (bibtex-start-of-text-in-field bounds))
        (and (re-search-forward "http://dx.doi.org/"
                                (bibtex-end-of-text-in-field bounds) t)
             (replace-match ""))))))

(defun km/bibtex-downcase-keys ()
  "Downcase keys that are all caps."
  (save-excursion
    (bibtex-beginning-of-entry)
    (let (case-fold-search)
      (while (re-search-forward "^\\s-*\\([A-Z]+\\)\\s-*=" nil t)
        (replace-match (downcase (match-string 1)) 'fixedcase
                       nil nil 1)))))

(defun km/bibtex-downcase-author-and ()
  (save-excursion
    (bibtex-beginning-of-entry)
    (let ((bounds (bibtex-search-forward-field "author" t)))
      (when bounds
        (goto-char (bibtex-start-of-text-in-field bounds))
        (let (case-fold-search)
          (while (re-search-forward "\\bAND\\b"
                                    (bibtex-end-of-text-in-field bounds) t)
            (replace-match (downcase (match-string 0)) 'fixedcase)))))))

(defun km/bibtex-sub-journal ()
  (when (boundp 'km/bibtex-journal-substitutions)
    (save-excursion
      (bibtex-beginning-of-entry)
      (let ((bounds (bibtex-search-forward-field "journal" t)))
        (when bounds
          (let* ((beg (1+ (bibtex-start-of-text-in-field bounds)))
                 (end (1- (bibtex-end-of-text-in-field bounds)))
                 (journ (replace-regexp-in-string
                         "[ \n]+" " "
                         (buffer-substring-no-properties beg end)))
                 (sub (assoc-string journ km/bibtex-journal-substitutions)))
            (when sub
              (goto-char beg)
              (delete-region beg end)
              (insert (cdr sub))
              (fill-paragraph))))))))

(defvar km/bibtex-article-fields-to-delete
  '("abstract" "issn" "pubmedid" "url" "eprint" "keywords"))

(defun km/bibtex-delete-article-fields ()
  (save-excursion
    (when (and (bibtex-beginning-of-entry)
               (looking-at bibtex-entry-maybe-empty-head)
               (string= (downcase (bibtex-type-in-head)) "article"))
      (dolist (f km/bibtex-article-fields-to-delete)
       (let (bounds)
         ;; Make sure field is removed even if it is repeated.
         (while (progn (bibtex-beginning-of-entry)
                       (setq bounds (bibtex-search-forward-field f t)))
           (goto-char (bibtex-end-of-field bounds))
           (skip-chars-backward " \t\n")
           (delete-region (bibtex-start-of-field bounds)
                          (point))))))))

(defun km/bibtex-author-last-name-first ()
  "Use last name first format for authors.

Convert

    name1 name2 name3 and ...

to

    name3, name1 name2 and ..."
  (interactive)
  (save-excursion
    (bibtex-beginning-of-entry)
    (let ((bounds (bibtex-search-forward-field "author" t)))
      (when bounds
        (let* ((beg (1+ (bibtex-start-of-text-in-field bounds)))
               (end (1- (bibtex-end-of-text-in-field bounds)))
               (author-list (buffer-substring-no-properties beg end))
               (author-re (rx line-start
                              (group (one-or-more not-newline))
                              (syntax whitespace)
                              (group (one-or-more (not (syntax whitespace))))
                              line-end))
               authors)
          (with-temp-buffer
            (insert (replace-regexp-in-string
                     " and " "\n"
                     (replace-regexp-in-string
                      "[\n\t ]+" " " author-list)))
            (goto-char (point-min))
            (while (re-search-forward author-re nil t)
              (push (concat (match-string 2) ", " (match-string 1))
                    authors)))
          (goto-char beg)
          (delete-region beg end)
          (insert (mapconcat #'identity (nreverse authors) " and "))
          (fill-paragraph))))))

;;;###autoload
(defun km/browse-doi (doi)
  "Open DOI in browser.
When called interactively, take the DOI from the text under
point.  The link is opened using the settings of
`org-doi-server-url'."
  (interactive (list (km/doi-at-point)))
  (browse-url (org-link-escape-browser (concat org-doi-server-url doi))))

;;;###autoload
(defun km/copy-doi-as-kill ()
  "Copy DOI at point to kill ring."
  (interactive)
  (-when-let (doi (km/doi-at-point))
    (kill-new (message "%s" (concat "doi:" doi)))))

(defun km/doi-at-point ()
  "Return DOI at point."
  (save-excursion
    (skip-chars-backward "-.A-z0-9/")
    (and (looking-at "\\(doi:[ \t\n]*\\)*\\([-./A-z0-9]+[A-z0-9]\\)\\b")
         (match-string-no-properties 2))))

(provide 'km-bib)
;;; km-bib.el ends here