(get_system_name): Don't crash if Vsystem_name does not contain a string.
[emacs.git] / lisp / gnus-mh.el
blob02317a22eeb91bf4da99bbd1609c5ee90c987247
1 ;;; gnus-mh.el --- mh-e interface for Gnus
2 ;; Copyright (C) 1994,95,96 Free Software Foundation, Inc.
4 ;; Author: Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
5 ;; Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
6 ;; Keywords: news
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
13 ;; any later version.
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
25 ;;; Commentary:
27 ;;; Send mail using mh-e.
29 ;; The following mh-e interface is all cooperative works of
30 ;; tanaka@flab.fujitsu.CO.JP (TANAKA Hiroshi), kawabe@sra.CO.JP
31 ;; (Yoshikatsu Kawabe), and shingu@casund.cpr.canon.co.jp (Toshiaki
32 ;; SHINGU).
34 ;;; Code:
36 (require 'mh-e)
37 (require 'mh-comp)
38 (require 'gnus)
39 (require 'gnus-msg)
40 (eval-when-compile (require 'cl))
42 (defun gnus-summary-save-article-folder (&optional arg)
43 "Append the current article to an mh folder.
44 If N is a positive number, save the N next articles.
45 If N is a negative number, save the N previous articles.
46 If N is nil and any articles have been marked with the process mark,
47 save those articles instead."
48 (interactive "P")
49 (let ((gnus-default-article-saver 'gnus-summary-save-in-folder))
50 (gnus-summary-save-article arg)))
52 (defun gnus-summary-save-in-folder (&optional folder)
53 "Save this article to MH folder (using `rcvstore' in MH library).
54 Optional argument FOLDER specifies folder name."
55 ;; Thanks to yuki@flab.Fujitsu.JUNET and ohm@kaba.junet.
56 (mh-find-path)
57 (let ((folder
58 (cond ((and (eq folder 'default)
59 gnus-newsgroup-last-folder)
60 gnus-newsgroup-last-folder)
61 (folder folder)
62 (t (mh-prompt-for-folder
63 "Save article in"
64 (funcall gnus-folder-save-name gnus-newsgroup-name
65 gnus-current-headers gnus-newsgroup-last-folder)
66 t))))
67 (errbuf (get-buffer-create " *Gnus rcvstore*"))
68 ;; Find the rcvstore program.
69 (exec-path (if mh-lib (cons mh-lib exec-path) exec-path)))
70 (gnus-eval-in-buffer-window gnus-original-article-buffer
71 (save-restriction
72 (widen)
73 (unwind-protect
74 (call-process-region
75 (point-min) (point-max) "rcvstore" nil errbuf nil folder)
76 (set-buffer errbuf)
77 (if (zerop (buffer-size))
78 (message "Article saved in folder: %s" folder)
79 (message "%s" (buffer-string)))
80 (kill-buffer errbuf))))
81 (setq gnus-newsgroup-last-folder folder)))
83 (defun gnus-Folder-save-name (newsgroup headers &optional last-folder)
84 "Generate folder name from NEWSGROUP, HEADERS, and optional LAST-FOLDER.
85 If variable `gnus-use-long-file-name' is nil, it is +News.group.
86 Otherwise, it is like +news/group."
87 (or last-folder
88 (concat "+"
89 (if gnus-use-long-file-name
90 (gnus-capitalize-newsgroup newsgroup)
91 (gnus-newsgroup-directory-form newsgroup)))))
93 (defun gnus-folder-save-name (newsgroup headers &optional last-folder)
94 "Generate folder name from NEWSGROUP, HEADERS, and optional LAST-FOLDER.
95 If variable `gnus-use-long-file-name' is nil, it is +news.group.
96 Otherwise, it is like +news/group."
97 (or last-folder
98 (concat "+"
99 (if gnus-use-long-file-name
100 newsgroup
101 (gnus-newsgroup-directory-form newsgroup)))))
103 (provide 'gnus-mh)
105 ;;; gnus-mh.el ends here