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;;; vm-grepmail.el --- VM interface for grepmail
;;
;; This file is part of VM
;;
;; Copyright (C) 2001-2005 Robert Widhopf-Fenk
;;
;; Author: Robert Widhopf-Fenk
;; Status: Tested with XEmacs 21.4.15 & VM 7.19
;; Keywords: VM helpers
;; X-URL: http://www.robf.de/Hacking/elisp
;;
;; This code 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 1, 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, write to the Free Software
;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
;;; Commentary:
;;
;; Add the following line to your .vm
;; (require 'vm-grepmail)
;;
;;; Bugs:
;;
;; Somehow/sometimes the parsing stuff might create a corrupted folder but
;; sofar I have not been able to reproduce this problem!
;;
;; I would be thankful if you could provide me with an testing example.
;;
;;; Code:
(provide 'vm-grepmail)
(eval-and-compile
(require 'vm-misc)
(require 'vm-minibuf)
(require 'vm-undo)
(require 'vm-startup)
(require 'vm-motion)
(require 'vm-summary)
(require 'vm-folder)
(require 'vm-window)
)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; group already defined in vm-vars.el
;(defgroup vm nil
; "VM"
; :group 'mail)
(defgroup vm-grepmail nil
"The VM grepmail lib"
:group 'vm)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;###autoload
(defcustom vm-grepmail-command "grepmail"
"*Path to the program."
:group 'vm-grepmail
:type 'file)
;;;###autoload
(defcustom vm-grepmail-arguments (list "-q" "-m" "-R" "-e"
(format "%S" user-full-name))
"*Arguments for grepmail program."
:group 'vm-grepmail
:type '(repeat (string)))
(defvar vm-grepmail-arguments-history
nil
"*History of previously used grepmail parameters.")
(defvar vm-grepmail-folders-history nil
"*History for folders/directories for grepmail program.")
(defvar vm-grepmail-folder-buffer nil)
(if vm-fsfemacs-p
;; For sixth arg of read-file-name in Emacs 21. cf vm-folder-history.
(defun vm-grepmail-folders-history (&rest ignored) t))
;;;###autoload
(defun vm-grepmail (arguments folders)
"A not so excellent interface to grepmail.
Grepmail is a fast perl-script for finding mails which got lost in the
folder jungle. End your input or folders and directories with an empty sting
or the default folder.
ARGUMENTS the command line aruments to grepmail.
FOLDERS should be a list of files/directories to search in."
(interactive (list
(split-string
(read-string "grepmail arguments: "
(mapconcat 'identity vm-grepmail-arguments " ")
'vm-grepmail-arguments-history))
(let ((default (or vm-folder-directory
"~/Mail"))
fd folders)
(while (or (not (string= fd (expand-file-name default)))
(string= fd ""))
(setq fd (vm-read-file-name
(format "Search folder/directory %s%s: "
(if (not folders)
"[end list with RET]" "")
(if folders
(concat "("
(mapconcat 'identity
folders ", ") ")")
""))
default
default
t nil 'vm-grepmail-folders-history)
fd (expand-file-name fd))
(if (not (string= fd (expand-file-name default)))
(setq folders (add-to-list 'folders fd))))
(if (null folders)
(setq folders (add-to-list 'folders fd)))
folders)))
(setq vm-grepmail-arguments arguments)
(setq vm-grepmail-folders-history
(append folders vm-grepmail-folders-history))
(let ((folder-buffer (format "* VM folder: grepmail %s %s *"
arguments folders))
(process-buffer (get-buffer-create
(format "* grepmail %s %s *"
arguments folders)))
(vm-folder-directory (or vm-folder-directory "~/Mail"))
process)
(when (get-buffer folder-buffer)
(set-buffer folder-buffer)
(if vm-summary-buffer (kill-buffer vm-summary-buffer))
(if vm-presentation-buffer (kill-buffer vm-presentation-buffer))
(kill-buffer folder-buffer))
(setq folder-buffer (get-buffer-create folder-buffer))
(set-buffer folder-buffer)
(setq default-directory (expand-file-name vm-folder-directory))
(setq buffer-read-only nil)
(if (vm-multiple-frames-possible-p)
(vm-goto-new-frame 'folder))
(switch-to-buffer folder-buffer)
(set-buffer-modified-p nil)
(vm-mode)
(font-lock-mode -1)
(vm-update-summary-and-mode-line)
(vm-display (current-buffer) t
'(vm-scroll-forward vm-scroll-backward)
'(reading-message))
(vm-summarize t t)
(vm-display (current-buffer) nil nil '(reading-message))
(vm-display (current-buffer) t nil '(vm-next-message reading-message))
(save-excursion
(set-buffer process-buffer)
(setq default-directory (expand-file-name vm-folder-directory))
(erase-buffer)
(switch-to-buffer process-buffer)
(make-local-variable 'vm-grepmail-folder-buffer)
(setq vm-grepmail-folder-buffer folder-buffer)
(setq process
(apply 'start-process-shell-command "grepmail"
process-buffer
vm-grepmail-command
(append arguments folders)))
(if (null process)
(error "Cannot start grepmail"))
;; set the send-filter
(if vm-fsfemacs-p
(set-buffer-process-coding-system 'raw-text-unix 'raw-text-unix))
(set-process-filter process 'vm-grepmail-process-filter)
(set-process-sentinel process 'vm-grepmail-process-done)
process)))
(defun vm-grepmail-process-filter (process output)
"The PROCESS insert OUTPUT into an folder biuffer."
(condition-case nil ;err
(progn
(set-buffer (process-buffer process))
(goto-char (point-max))
(insert output)
(let (end)
(goto-char (1+ (point-min)))
(when (and (string-match "^\nFrom " output)
(setq end (and (re-search-forward "^\nFrom "
(point-max) t)
(match-beginning 0))))
(vm-grepmail-grab-message (current-buffer) (point-min) end)
(delete-region (point-min) end)))
(sit-for 0))
(error nil
;; TODO: there are some problems here but we ignore them
; (message "%S" err)
; (backtrace)
))
)
(defun vm-grepmail-process-done (process state)
"Called when the grepmail PROCESS is finished returning STATE."
(message "grepmail cleanup.")
(setq state (process-status process))
(if (not (or (eq state 'exit) (eq state 'finished)
(not (= (process-exit-status process) 0))))
(error "Grepmail terminated abnormally with %S %d"
state (process-exit-status process)))
;; grab the last message
(set-buffer (process-buffer process))
(goto-char (point-max))
(beginning-of-line)
(vm-grepmail-grab-message (current-buffer) (point-min) (point))
;; cleanup
(let ((folder-buffer vm-grepmail-folder-buffer))
(kill-this-buffer)
(set-buffer folder-buffer)
(vm-next-message 1)
(vm-clear-modification-flag-undos)
(set-buffer-modified-p nil)
(setq major-mode 'vm-virtual-mode)
(if (vm-multiple-frames-possible-p)
(vm-set-hooks-for-frame-deletion)))
(message "grepmail is finished."))
(defun vm-grepmail-grab-message (message-buffer start end)
"Assimilates a message after it is complete.
MESSAGE-BUFFER is the buffer of the message.
START the start position in the process output buffer.
END the end position in the process output buffer."
(save-excursion
(set-buffer vm-grepmail-folder-buffer)
(let ((buffer-read-only nil))
(vm-save-restriction
(widen)
(goto-char (point-max))
(insert-buffer-substring message-buffer start end)
(cond ((eq major-mode 'vm-mode)
(vm-clear-modification-flag-undos)))
(vm-check-for-killed-summary)
(vm-assimilate-new-messages)
(vm-update-summary-and-mode-line)
(set-buffer-modified-p nil))))
(sit-for 0))
;;; vm-grepmail.el ends here
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