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;;; bookmark-conf.el --- My configurations for bookmark  -*- lexical-binding: t; -*-

;; Copyright (C) 2021  Durand

;; Author: Durand <mmemmew@gmail.com>
;; Keywords: convenience

;; 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 <https://www.gnu.org/licenses/>.

;;; Commentary:

;; My configurations for bookmarks.

;;; Code:

;; dependency of blist

(use-package "ilist" 'ilist)

(use-package "blist" 'blist)

;;; Customizations

;;;; Pseudo-expert?

(setq blist-expert t)

;;;; Discard empty groups

(setq blist-discard-empty-p t)

;;;; I love cycling

(setq blist-movement-cycle t)

;;;; Filter groups

(setq
 blist-filter-groups
 (list
  (cons "Eshell" #'blist-eshell-p)
  (cons "Gnus" #'blist-gnus-p)
  (cons "PDF" #'blist-pdf-p)
  (cons "ELisp" #'blist-elisp-p)
  (cons "Org" #'blist-org-p)
  (cons "C" #'blist-c-p)
  (cons "Default" #'blist-default-p)))

;;; More bookmark groups

;;;; Gnus group

;; There seems to be only two GNUS bookmark handlers (or one?)
(blist-define-criterion "gnus" "Gnus"
  (let ((handler (bookmark-get-handler bookmark)))
    (memq handler (list #'gnus-summary-bookmark-jump
                        #'gnus-bookmark-jump))))

;;;; PDF group

(blist-define-criterion "pdf" "PDF"
  (eq (bookmark-get-handler bookmark)
      #'pdf-view-bookmark-jump-handler))

;;;; Org group

(defvar org-directory)

(blist-define-criterion "org" "Org"
  (let ((location (blist-get-location bookmark)))
    (or
     (string-match-p
      "\\.org$" location)
     (and
      (file-directory-p (or org-directory "/non-existing"))
      (file-in-directory-p location org-directory)))))

;;;; C group

(blist-define-criterion "c" "C"
  ;; `rx' is a macro, so that we don't have to compute the regular
  ;; expression every time we match a line.
  (string-match-p
   (rx
    (or
     (seq ".c"
          (zero-or-one "pp")
          eos)
     (seq ".h"
          (zero-or-one "pp")
          eos)))
   (blist-get-location bookmark)))

;;;; ELisp group

(blist-define-criterion "elisp" "ELisp"
  (string-match-p "\\.el$" (blist-get-location bookmark)))

(provide 'bookmark-conf)
;;; bookmark-conf.el ends here