/usr/share/emacs/site-lisp/wl/elmo/elmo-map.el is in wl 2.14.0-12.
This file is owned by root:root, with mode 0o644.
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;; Copyright (C) 2000 Yuuichi Teranishi <teranisi@gohome.org>
;; Author: Yuuichi Teranishi <teranisi@gohome.org>
;; Keywords: mail, net news
;; This file is part of ELMO (Elisp Library for Message Orchestration).
;; 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 2, 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 GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;
;;; Commentary:
;; Folders which do not have unique message numbers but unique message names
;; should inherit this folder.
;;; Code:
;;
(require 'elmo)
(require 'elmo-msgdb)
(eval-when-compile (require 'cl))
(eval-and-compile
;; location-hash: location->number mapping
;; number-hash: number->location mapping
(luna-define-class elmo-map-folder (elmo-folder)
(location-alist number-max location-hash))
(luna-define-internal-accessors 'elmo-map-folder))
(defun elmo-map-folder-numbers-to-locations (folder numbers)
(let (locations pair)
(dolist (number numbers)
(if (setq pair (elmo-get-hash-val
(concat "#" (int-to-string number))
(elmo-map-folder-location-hash-internal folder)))
(setq locations (cons (cdr pair) locations))))
(nreverse locations)))
(defun elmo-map-folder-locations-to-numbers (folder locations)
(let (numbers pair)
(dolist (location locations)
(if (setq pair (elmo-get-hash-val
location
(elmo-map-folder-location-hash-internal folder)))
(setq numbers (cons (car pair) numbers))))
(nreverse numbers)))
(luna-define-generic elmo-map-folder-list-message-locations (folder)
"Return a location list of the FOLDER.")
(luna-define-generic elmo-map-folder-set-flag (folder locations flag)
"Set FLAG to LOCATIONS.")
(luna-define-generic elmo-map-folder-unset-flag (folder locations flag)
"Unset FLAG from LOCATIONS.")
(luna-define-generic elmo-map-message-fetch (folder location
strategy
&optional
section
unseen)
"")
(luna-define-generic elmo-map-folder-delete-messages (folder locations)
"")
(luna-define-method elmo-folder-status ((folder elmo-map-folder))
(elmo-folder-open-internal folder)
(elmo-folder-set-killed-list-internal
folder
(elmo-msgdb-killed-list-load (elmo-folder-msgdb-path folder)))
(let ((numbers (mapcar
'car
(elmo-map-folder-location-alist-internal folder))))
(setq numbers (elmo-living-messages
numbers
(elmo-folder-killed-list-internal folder)))
(prog1
(cons (elmo-max-of-list numbers)
(length numbers))
;; Don't close after status.
(unless (elmo-folder-reserve-status-p folder)
(elmo-folder-close-internal folder)))))
(defun elmo-map-message-number (folder location)
"Return number of the message in the FOLDER with LOCATION."
(car (elmo-get-hash-val
location
(elmo-map-folder-location-hash-internal folder))))
(defun elmo-map-message-location (folder number)
"Return location of the message in the FOLDER with NUMBER."
(cdr (elmo-get-hash-val
(concat "#" (int-to-string number))
(elmo-map-folder-location-hash-internal folder))))
(luna-define-method elmo-folder-pack-numbers ((folder elmo-map-folder))
(let* ((msgdb (elmo-folder-msgdb folder))
(numbers
(sort (elmo-folder-list-messages folder nil
(not elmo-pack-number-check-strict))
'<))
(new-msgdb (elmo-make-msgdb (elmo-folder-msgdb-path folder)))
(number 1)
total location entity)
(setq total (length numbers))
(elmo-with-progress-display (> total elmo-display-progress-threshold)
(elmo-folder-pack-numbers total "Packing...")
(dolist (old-number numbers)
(setq entity (elmo-msgdb-message-entity msgdb old-number))
(elmo-message-entity-set-number entity number)
(elmo-msgdb-append-entity new-msgdb entity
(elmo-msgdb-flags msgdb old-number))
(setq location
(cons (cons number
(elmo-map-message-location folder old-number))
location))
(elmo-emit-signal 'message-number-changed folder old-number number)
(setq number (1+ number))))
(message "Packing...done")
(elmo-map-folder-location-setup folder (nreverse location))
(elmo-folder-set-msgdb-internal folder new-msgdb)))
(defun elmo-map-folder-location-setup (folder locations)
(elmo-map-folder-set-location-alist-internal
folder
locations)
(elmo-map-folder-set-location-hash-internal
folder (elmo-make-hash
(* 2 (length locations))))
(elmo-map-folder-set-number-max-internal folder 0)
;; Set number-max and hashtables.
(dolist (location-cons locations)
(if (< (elmo-map-folder-number-max-internal folder)
(car location-cons))
(elmo-map-folder-set-number-max-internal folder (car location-cons)))
(elmo-set-hash-val (cdr location-cons)
location-cons
(elmo-map-folder-location-hash-internal folder))
(elmo-set-hash-val (concat "#" (int-to-string (car location-cons)))
location-cons
(elmo-map-folder-location-hash-internal folder))))
(defun elmo-map-folder-update-locations (folder locations)
;; A subroutine to make location-alist.
;; location-alist is existing location-alist.
;; locations is the newest locations.
(let* ((location-alist (elmo-map-folder-location-alist-internal folder))
(locations-in-db (mapcar 'cdr location-alist))
new-locs new-alist deleted-locs pair i)
(setq new-locs
(elmo-delete-if (function
(lambda (x) (member x locations-in-db)))
locations))
(setq deleted-locs
(elmo-delete-if (function
(lambda (x) (member x locations)))
locations-in-db))
(dolist (location deleted-locs)
(setq location-alist
(delq (setq pair
(elmo-get-hash-val
location
(elmo-map-folder-location-hash-internal
folder)))
location-alist))
(when pair
(elmo-clear-hash-val (concat "#" (int-to-string (car pair)))
(elmo-map-folder-location-hash-internal
folder))
(elmo-clear-hash-val location
(elmo-map-folder-location-hash-internal
folder))))
(setq i (elmo-map-folder-number-max-internal folder))
(dolist (location new-locs)
(setq i (1+ i))
(elmo-map-folder-set-number-max-internal folder i)
(setq new-alist (cons (setq pair (cons i location)) new-alist))
(setq new-alist (nreverse new-alist))
(elmo-set-hash-val (concat "#" (int-to-string i))
pair
(elmo-map-folder-location-hash-internal
folder))
(elmo-set-hash-val location
pair
(elmo-map-folder-location-hash-internal
folder)))
(setq location-alist
(sort (nconc location-alist new-alist)
(lambda (x y) (< (car x) (car y)))))
(elmo-map-folder-set-location-alist-internal folder location-alist)))
(luna-define-method elmo-folder-open-internal ((folder elmo-map-folder))
(elmo-map-folder-location-setup
folder
(elmo-msgdb-location-load (elmo-folder-msgdb-path folder)))
(if (elmo-folder-plugged-p folder)
(elmo-map-folder-update-locations
folder
(elmo-map-folder-list-message-locations folder))))
(luna-define-method elmo-folder-commit :after ((folder elmo-map-folder))
(when (elmo-folder-persistent-p folder)
(elmo-msgdb-location-save (elmo-folder-msgdb-path folder)
(elmo-map-folder-location-alist-internal
folder))))
(luna-define-method elmo-folder-close-internal ((folder elmo-map-folder))
(elmo-map-folder-set-location-alist-internal folder nil)
(elmo-map-folder-set-location-hash-internal folder nil))
(luna-define-method elmo-folder-check ((folder elmo-map-folder))
(elmo-map-folder-update-locations
folder
(elmo-map-folder-list-message-locations folder)))
(luna-define-method elmo-folder-next-message-number ((folder elmo-map-folder))
(1+ (elmo-map-folder-number-max-internal folder)))
(luna-define-method elmo-folder-clear :around ((folder elmo-map-folder)
&optional keep-killed)
(unless keep-killed
(elmo-map-folder-set-number-max-internal folder 0)
(elmo-map-folder-set-location-alist-internal folder nil)
;; clear hashtable.
(elmo-map-folder-set-location-hash-internal folder (elmo-make-hash)))
(luna-call-next-method))
(luna-define-method elmo-folder-list-messages-internal
((folder elmo-map-folder) &optional nohide)
(mapcar 'car (elmo-map-folder-location-alist-internal folder)))
(luna-define-method elmo-folder-set-flag :before ((folder elmo-map-folder)
numbers
flag
&optional is-local)
(unless is-local
(elmo-map-folder-set-flag
folder
(elmo-map-folder-numbers-to-locations folder numbers)
flag)))
(luna-define-method elmo-folder-unset-flag :before ((folder elmo-map-folder)
numbers
flag
&optional is-local)
(unless is-local
(elmo-map-folder-unset-flag
folder
(elmo-map-folder-numbers-to-locations folder numbers)
flag)))
(luna-define-method elmo-message-fetch-internal ((folder elmo-map-folder)
number strategy
&optional section unread)
(elmo-map-message-fetch
folder
(elmo-map-message-location folder number)
strategy section unread))
(luna-define-method elmo-folder-list-flagged-internal ((folder elmo-map-folder)
flag)
(let ((locations (elmo-map-folder-list-flagged folder flag)))
(if (listp locations)
(elmo-map-folder-locations-to-numbers folder locations)
t)))
(luna-define-generic elmo-map-folder-list-flagged (folder flag)
"Return a list of message location in the FOLDER with FLAG.
Return t if the message list is not available.")
(luna-define-method elmo-map-folder-list-flagged ((folder elmo-map-folder)
flag)
t)
(luna-define-method elmo-folder-delete-messages-internal ((folder
elmo-map-folder)
numbers)
(elmo-map-folder-delete-messages
folder
(elmo-map-folder-numbers-to-locations folder numbers)))
(luna-define-method elmo-folder-detach-messages :around ((folder
elmo-map-folder)
numbers)
(when (luna-call-next-method)
(dolist (number numbers)
(elmo-map-folder-set-location-alist-internal
folder
(delq (elmo-get-hash-val
(concat "#" (int-to-string number))
(elmo-map-folder-location-hash-internal
folder))
(elmo-map-folder-location-alist-internal folder)))
(elmo-clear-hash-val (concat "#" (int-to-string number))
(elmo-map-folder-location-hash-internal
folder)))
t)) ; success
(require 'product)
(product-provide (provide 'elmo-map) (require 'elmo-version))
;;; elmo-map.el ends here
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