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106 lines
4.1 KiB
106 lines
4.1 KiB
;;; biblio-hal.el --- Lookup and import bibliographic entries from HAL (archives ouvertes) -*- lexical-binding: t -*-
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;; Copyright (C) 2016 Clément Pit-Claudel
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;; Author: Clément Pit-Claudel <clement.pitclaudel@live.com>
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;; URL: http://github.com/cpitclaudel/biblio.el
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;;
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;; Lookup and download bibliographic records from HAL using `hal-lookup'.
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;;
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;; This file implements a backend for the for the `biblio' package (which see for more
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;; documentation).
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;;; Code:
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(require 'biblio-core)
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(defun biblio-hal--forward-bibtex (metadata forward-to)
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"Forward BibTeX for HAL entry METADATA to FORWARD-TO."
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(funcall forward-to (biblio-alist-get 'bibtex metadata)))
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;; (defun biblio-hal--format-author (author)
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;; "Format AUTHOR for HAL search results."
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;; (pcase author
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;; (`(,author . ,affiliation)
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;; (biblio-join " " author (biblio-parenthesize affiliation)))))
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(defun biblio-hal--extract-interesting-fields (item)
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"Prepare a HAL search result ITEM for display."
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(let-alist item
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(list (cons 'doi .doiId_s)
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(cons 'year (aref (timezone-parse-date .producedDate_tdate) 0))
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(cons 'bibtex .label_bibtex)
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(cons 'title (biblio-join " "
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(biblio-join-1 ", " .title_s)
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(biblio-parenthesize
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(biblio-join-1 ", " .subtitle_s))))
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(cons 'authors .authFullName_s)
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;; Too many institutions? (biblio-parenthesize (biblio-join-1 ", " .structName_s))
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(cons 'publisher .journalPublisher_s)
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(cons 'container .journalTitle_s)
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(cons 'references (biblio-remove-empty
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(list .doiId_s .halId_s .arxivId_s)))
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(cons 'type .submitType_s)
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(cons 'url .uri_s)
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(cons 'direct-url (car (append .files_s nil))))))
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(defun biblio-hal--parse-search-results ()
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"Extract search results from HAL response."
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(biblio-decode-url-buffer 'utf-8)
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(let-alist (json-read)
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(unless .response
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(display-warning 'biblio-hal "HAL query failed"))
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(seq-map #'biblio-hal--extract-interesting-fields .response.docs)))
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(defun biblio-hal--url (query)
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"Create a HAL url to look up QUERY."
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(format "https://api.archives-ouvertes.fr/search/?q=%s&wt=%s&fl=%s"
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(url-encode-url query) "json"
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(biblio-join "," ;; Use ‘*’ to show all fields
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"arxivId_s" "halId_s" "doiId_s" ;; "journalIssn_s"
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"title_s" "subtitle_s" "authFullName_s" "structName_s"
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"journalPublisher_s" "submitType_s" ;; "abstract_s"
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;; "journalTitle_s" "volume_s" "issue_s" "page_s" "writingDate_s"
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"label_bibtex" "files_s" "uri_s" "producedDate_tdate")))
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;;;###autoload
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(defun biblio-hal-backend (command &optional arg &rest more)
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"A HAL backend for biblio.el.
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COMMAND, ARG, MORE: See `biblio-backends'."
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(pcase command
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(`name "HAL")
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(`prompt "HAL (archives ouvertes) query: ")
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(`url (biblio-hal--url arg))
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(`parse-buffer (biblio-hal--parse-search-results))
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(`forward-bibtex (biblio-hal--forward-bibtex arg (car more)))
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(`register (add-to-list 'biblio-backends #'biblio-hal-backend))))
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;;;###autoload
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(add-hook 'biblio-init-hook #'biblio-hal-backend)
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;;;###autoload
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(defun biblio-hal-lookup (&optional query)
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"Start a HAL search for QUERY, prompting if needed."
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(interactive)
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(biblio-lookup #'biblio-hal-backend query))
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;;;###autoload
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(defalias 'hal-lookup 'biblio-hal-lookup)
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(provide 'biblio-hal)
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;;; biblio-hal.el ends here
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