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|
;;; org-bibtex.el --- Org links to BibTeX entries
;;
;; Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
;;
;; Author: Bastien Guerry <bzg at altern dot org>
;; Carsten Dominik <carsten dot dominik at gmail dot com>
;; Keywords: org, wp, remember
;; Version: 7.4
;;
;; This file is part of GNU Emacs.
;;
;; GNU Emacs 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.
;; GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;
;;; Commentary:
;;
;; This file implements links to database entries in BibTeX files.
;; Instead of defining a special link prefix, it uses the normal file
;; links combined with a custom search mechanism to find entries
;; by reference key. And it constructs a nice description tag for
;; the link that contains the author name, the year and a short title.
;;
;; It also stores detailed information about the entry so that
;; remember templates can access and enter this information easily.
;;
;; The available properties for each entry are listed here:
;;
;; :author :publisher :volume :pages
;; :editor :url :number :journal
;; :title :year :series :address
;; :booktitle :month :annote :abstract
;; :key :btype
;;
;; Here is an example of a remember template that use some of this
;; information (:author :year :title :journal :pages):
;;
;; (setq org-remember-templates
;; '((?b "* READ %?\n\n%a\n\n%:author (%:year): %:title\n \
;; In %:journal, %:pages.")))
;;
;; Let's say you want to remember this BibTeX entry:
;;
;; @Article{dolev83,
;; author = {Danny Dolev and Andrew C. Yao},
;; title = {On the security of public-key protocols},
;; journal = {IEEE Transaction on Information Theory},
;; year = 1983,
;; volume = 2,
;; number = 29,
;; pages = {198--208},
;; month = {Mars}
;; }
;;
;; M-x `org-remember' on this entry will produce this buffer:
;;
;; =====================================================================
;; * READ <== [point here]
;;
;; [[file:/file.bib::dolev83][Dolev & Yao 1983: security of public key protocols]]
;;
;; Danny Dolev and Andrew C. Yao (1983): On the security of public-key protocols
;; In IEEE Transaction on Information Theory, 198--208.
;; =====================================================================
;;
;;; History:
;;
;; The link creation part has been part of Org-mode for a long time.
;;
;; Creating better remember template information was inspired by a request
;; of Austin Frank: http://article.gmane.org/gmane.emacs.orgmode/4112
;; and then implemented by Bastien Guerry.
;;
;; Org-mode loads this module by default - if this is not what you want,
;; configure the variable `org-modules'.
;;; Code:
(require 'org)
(defvar description nil) ; dynamically scoped from org.el
(declare-function bibtex-beginning-of-entry "bibtex" ())
(declare-function bibtex-generate-autokey "bibtex" ())
(declare-function bibtex-parse-entry "bibtex" (&optional content))
(declare-function bibtex-url "bibtex" (&optional pos no-browse))
(org-add-link-type "bibtex" 'org-bibtex-open)
(add-hook 'org-store-link-functions 'org-bibtex-store-link)
;; (defun org-bibtex-publish (path)
;; "Build the description of the BibTeX entry for publishing."
;; (let* ((search (when (string-match "::\\(.+\\)\\'" path)
;; (match-string 1 path)))
;; (path (substring path 0 (match-beginning 0)))
;; key)
;; (with-temp-buffer
;; (org-open-file path t nil search)
;; (setq key (org-create-file-search-functions)))
;; (or description key)))
(defun org-bibtex-open (path)
"Visit the bibliography entry on PATH."
(let* ((search (when (string-match "::\\(.+\\)\\'" path)
(match-string 1 path)))
(path (substring path 0 (match-beginning 0))))
(org-open-file path t nil search)))
(defun org-bibtex-store-link ()
"Store a link to a BibTeX entry."
(when (eq major-mode 'bibtex-mode)
(let* ((search (org-create-file-search-in-bibtex))
(link (concat "file:" (abbreviate-file-name buffer-file-name)
"::" search))
(entry (mapcar ; repair strings enclosed in "..." or {...}
(lambda(c)
(if (string-match
"^\\(?:{\\|\"\\)\\(.*\\)\\(?:}\\|\"\\)$" (cdr c))
(cons (car c) (match-string 1 (cdr c))) c))
(save-excursion
(bibtex-beginning-of-entry)
(bibtex-parse-entry)))))
(org-store-link-props
:key (cdr (assoc "=key=" entry))
:author (or (cdr (assoc "author" entry)) "[no author]")
:editor (or (cdr (assoc "editor" entry)) "[no editor]")
:title (or (cdr (assoc "title" entry)) "[no title]")
:booktitle (or (cdr (assoc "booktitle" entry)) "[no booktitle]")
:journal (or (cdr (assoc "journal" entry)) "[no journal]")
:publisher (or (cdr (assoc "publisher" entry)) "[no publisher]")
:pages (or (cdr (assoc "pages" entry)) "[no pages]")
:url (or (cdr (assoc "url" entry)) "[no url]")
:year (or (cdr (assoc "year" entry)) "[no year]")
:month (or (cdr (assoc "month" entry)) "[no month]")
:address (or (cdr (assoc "address" entry)) "[no address]")
:volume (or (cdr (assoc "volume" entry)) "[no volume]")
:number (or (cdr (assoc "number" entry)) "[no number]")
:annote (or (cdr (assoc "annote" entry)) "[no annotation]")
:series (or (cdr (assoc "series" entry)) "[no series]")
:abstract (or (cdr (assoc "abstract" entry)) "[no abstract]")
:btype (or (cdr (assoc "=type=" entry)) "[no type]")
:type "bibtex"
:link link
:description description))))
(defun org-create-file-search-in-bibtex ()
"Create the search string and description for a BibTeX database entry."
;; Make a good description for this entry, using names, year and the title
;; Put it into the `description' variable which is dynamically scoped.
(let ((bibtex-autokey-names 1)
(bibtex-autokey-names-stretch 1)
(bibtex-autokey-name-case-convert-function 'identity)
(bibtex-autokey-name-separator " & ")
(bibtex-autokey-additional-names " et al.")
(bibtex-autokey-year-length 4)
(bibtex-autokey-name-year-separator " ")
(bibtex-autokey-titlewords 3)
(bibtex-autokey-titleword-separator " ")
(bibtex-autokey-titleword-case-convert-function 'identity)
(bibtex-autokey-titleword-length 'infty)
(bibtex-autokey-year-title-separator ": "))
(setq description (bibtex-generate-autokey)))
;; Now parse the entry, get the key and return it.
(save-excursion
(bibtex-beginning-of-entry)
(cdr (assoc "=key=" (bibtex-parse-entry)))))
(defun org-execute-file-search-in-bibtex (s)
"Find the link search string S as a key for a database entry."
(when (eq major-mode 'bibtex-mode)
;; Yes, we want to do the search in this file.
;; We construct a regexp that searches for "@entrytype{" followed by the key
(goto-char (point-min))
(and (re-search-forward (concat "@[a-zA-Z]+[ \t\n]*{[ \t\n]*"
(regexp-quote s) "[ \t\n]*,") nil t)
(goto-char (match-beginning 0)))
(if (and (match-beginning 0) (equal current-prefix-arg '(16)))
;; Use double prefix to indicate that any web link should be browsed
(let ((b (current-buffer)) (p (point)))
;; Restore the window configuration because we just use the web link
(set-window-configuration org-window-config-before-follow-link)
(with-current-buffer b
(goto-char p)
(bibtex-url)))
(recenter 0)) ; Move entry start to beginning of window
;; return t to indicate that the search is done.
t))
;; Finally add the link search function to the right hook.
(add-hook 'org-execute-file-search-functions 'org-execute-file-search-in-bibtex)
(provide 'org-bibtex)
;; arch-tag: 83987d5a-01b8-41c7-85bc-77700f1285f5
;;; org-bibtex.el ends here
|
