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;;; company-bbdb.el --- company-mode completion backend for BBDB in message-mode
;; Copyright (C) 2013-2016, 2020 Free Software Foundation, Inc.
;; Author: Jan Tatarik <jan.tatarik@gmail.com>
;; 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 <https://www.gnu.org/licenses/>.
(require 'company)
(require 'cl-lib)
(declare-function bbdb-record-get-field "bbdb")
(declare-function bbdb-records "bbdb")
(declare-function bbdb-dwim-mail "bbdb-com")
(declare-function bbdb-search "bbdb-com")
(defgroup company-bbdb nil
"Completion backend for BBDB."
:group 'company)
(defcustom company-bbdb-modes '(message-mode)
"Major modes in which `company-bbdb' may complete."
:type '(repeat (symbol :tag "Major mode"))
:package-version '(company . "0.8.8"))
(defun company-bbdb--candidates (arg)
(cl-mapcan (lambda (record)
(mapcar (lambda (mail) (bbdb-dwim-mail record mail))
(bbdb-record-get-field record 'mail)))
(eval '(bbdb-search (bbdb-records) arg nil arg))))
;;;###autoload
(defun company-bbdb (command &optional arg &rest ignore)
"`company-mode' completion backend for BBDB."
(interactive (list 'interactive))
(cl-case command
(interactive (company-begin-backend 'company-bbdb))
(prefix (and (memq major-mode company-bbdb-modes)
(featurep 'bbdb-com)
(let ((case-fold-search t))
(looking-back
"^\\([^ :]*-\\)?\\(To\\|B?Cc\\|From\\):.*? *\\([^,;]*\\)"
(line-beginning-position)))
(match-string-no-properties 3)))
(candidates (company-bbdb--candidates arg))
(sorted t)
(no-cache t)))
(provide 'company-bbdb)
;;; company-bbdb.el ends here
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