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1 | ;;; mh-buffers.el --- Temporary buffer constants and utilities used by MH-E |
2 | ||
3 | ;; Copyright (C) 1993, 1995, 1997, | |
4 | ;; 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. | |
5 | ||
6 | ;; Author: Bill Wohler <wohler@newt.com> | |
7 | ;; Maintainer: Bill Wohler <wohler@newt.com> | |
8 | ;; Keywords: mail | |
9 | ;; See: mh-e.el | |
10 | ||
11 | ;; This file is part of GNU Emacs. | |
12 | ||
13 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
14 | ;; it under the terms of the GNU General Public License as published by | |
15 | ;; the Free Software Foundation; either version 2, or (at your option) | |
16 | ;; any later version. | |
17 | ||
18 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | ;; GNU General Public License for more details. | |
22 | ||
23 | ;; You should have received a copy of the GNU General Public License | |
24 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
25 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
26 | ;; Boston, MA 02110-1301, USA. | |
27 | ||
28 | ;;; Commentary: | |
29 | ||
30 | ;; Temporary buffer constants and utilities used by MH-E. | |
31 | ||
32 | ;;; Change Log: | |
33 | ||
34 | ;;; Code: | |
35 | ||
36 | ;; The names of ephemeral buffers have a " *mh-" prefix (so that they | |
37 | ;; are hidden and can be programmatically removed in mh-quit), and the | |
38 | ;; variable names have the form mh-temp-.*-buffer. | |
39 | (defconst mh-temp-buffer " *mh-temp*") ;scratch | |
40 | (defconst mh-temp-checksum-buffer " *mh-checksum*") | |
41 | (defconst mh-temp-fetch-buffer " *mh-fetch*") ;wget/curl/fetch output | |
42 | (defconst mh-temp-index-buffer " *mh-index*") | |
43 | ||
44 | ;; The names of MH-E buffers that are not ephemeral and can be used by | |
45 | ;; the user (and deleted by the user when no longer needed) have a | |
46 | ;; "*MH-E " prefix (so they can be programmatically removed in | |
47 | ;; mh-quit), and the variable names have the form mh-.*-buffer. | |
48 | ;; Temporary buffers for search results | |
49 | (defconst mh-aliases-buffer "*MH-E Aliases*") ;alias lookups | |
50 | (defconst mh-folders-buffer "*MH-E Folders*") ;folder list | |
51 | (defconst mh-help-buffer "*MH-E Help*") ;quick help | |
52 | (defconst mh-info-buffer "*MH-E Info*") ;version information buffer | |
53 | (defconst mh-log-buffer "*MH-E Log*") ;output of MH commands and so on | |
54 | (defconst mh-mail-delivery-buffer "*MH-E Mail Delivery*") ;mail delivery log | |
55 | (defconst mh-recipients-buffer "*MH-E Recipients*") ;killed when draft sent | |
56 | (defconst mh-sequences-buffer "*MH-E Sequences*") ;sequences list | |
57 | ||
58 | (defvar mh-log-buffer-lines 100 | |
59 | "Number of lines to keep in `mh-log-buffer'.") | |
60 | ||
61 | \f | |
62 | ||
63 | (defun mh-truncate-log-buffer () | |
64 | "If `mh-log-buffer' is too big then truncate it. | |
65 | If the number of lines in `mh-log-buffer' exceeds | |
66 | `mh-log-buffer-lines' then keep only the last | |
67 | `mh-log-buffer-lines'. As a side effect the point is set to the | |
68 | end of the log buffer. | |
69 | ||
70 | The function returns the size of the final size of the log buffer." | |
71 | (with-current-buffer (get-buffer-create mh-log-buffer) | |
72 | (goto-char (point-max)) | |
73 | (save-excursion | |
74 | (when (equal (forward-line (- mh-log-buffer-lines)) 0) | |
75 | (delete-region (point-min) (point)))) | |
76 | (unless (or (bobp) | |
77 | (save-excursion | |
78 | (and (equal (forward-line -1) 0) (equal (char-after) ?\f)))) | |
79 | (insert "\n\f\n")) | |
80 | (buffer-size))) | |
81 | ||
82 | (provide 'mh-buffers) | |
83 | ||
84 | ;; Local Variables: | |
85 | ;; indent-tabs-mode: nil | |
86 | ;; sentence-end-double-space: nil | |
87 | ;; End: | |
88 | ||
c2f9ab7c | 89 | ;; arch-tag: 812e9f29-78b8-4e73-ada9-aa61dc1ceecb |
9c2cf222 | 90 | ;;; mh-buffers.el ends here |