1;;; score-mode.el --- mode for editing Gnus score files
2
3;; Copyright (C) 1996, 2001, 2002, 2003, 2004,
4;;   2005, 2006, 2007 Free Software Foundation, Inc.
5
6;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
7;; Keywords: news, mail
8
9;; This file is part of GNU Emacs.
10
11;; GNU Emacs is free software; you can redistribute it and/or modify
12;; it under the terms of the GNU General Public License as published by
13;; the Free Software Foundation; either version 2, or (at your option)
14;; any later version.
15
16;; GNU Emacs is distributed in the hope that it will be useful,
17;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19;; GNU General Public License for more details.
20
21;; You should have received a copy of the GNU General Public License
22;; along with GNU Emacs; see the file COPYING.  If not, write to the
23;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24;; Boston, MA 02110-1301, USA.
25
26;;; Commentary:
27
28;;; Code:
29
30(eval-when-compile (require 'cl))
31(require 'mm-util)			; for mm-universal-coding-system
32(require 'gnus-util)			; for gnus-pp, gnus-run-mode-hooks
33
34(defvar gnus-score-mode-hook nil
35  "*Hook run in score mode buffers.")
36
37(defvar gnus-score-menu-hook nil
38  "*Hook run after creating the score mode menu.")
39
40(defvar gnus-score-edit-exit-function nil
41  "Function run on exit from the score buffer.")
42
43(defvar gnus-score-mode-map nil)
44(unless gnus-score-mode-map
45  (setq gnus-score-mode-map (make-sparse-keymap))
46  (set-keymap-parent gnus-score-mode-map emacs-lisp-mode-map)
47  (define-key gnus-score-mode-map "\C-c\C-c" 'gnus-score-edit-exit)
48  (define-key gnus-score-mode-map "\C-c\C-d" 'gnus-score-edit-insert-date)
49  (define-key gnus-score-mode-map "\C-c\C-p" 'gnus-score-pretty-print))
50
51(defvar score-mode-syntax-table
52  (let ((table (copy-syntax-table lisp-mode-syntax-table)))
53    (modify-syntax-entry ?| "w" table)
54    table)
55  "Syntax table used in score-mode buffers.")
56
57;; We need this to cope with non-ASCII scoring.
58(defvar score-mode-coding-system mm-universal-coding-system)
59
60;;;###autoload
61(defun gnus-score-mode ()
62  "Mode for editing Gnus score files.
63This mode is an extended emacs-lisp mode.
64
65\\{gnus-score-mode-map}"
66  (interactive)
67  (kill-all-local-variables)
68  (use-local-map gnus-score-mode-map)
69  (gnus-score-make-menu-bar)
70  (set-syntax-table score-mode-syntax-table)
71  (setq major-mode 'gnus-score-mode)
72  (setq mode-name "Score")
73  (lisp-mode-variables nil)
74  (make-local-variable 'gnus-score-edit-exit-function)
75  (gnus-run-mode-hooks 'emacs-lisp-mode-hook 'gnus-score-mode-hook))
76
77(defun gnus-score-make-menu-bar ()
78  (unless (boundp 'gnus-score-menu)
79    (easy-menu-define
80     gnus-score-menu gnus-score-mode-map ""
81     '("Score"
82       ["Exit" gnus-score-edit-exit t]
83       ["Insert date" gnus-score-edit-insert-date t]
84       ["Format" gnus-score-pretty-print t]))
85    (run-hooks 'gnus-score-menu-hook)))
86
87(defun gnus-score-edit-insert-date ()
88  "Insert date in numerical format."
89  (interactive)
90  (princ (time-to-days (current-time)) (current-buffer)))
91
92(defun gnus-score-pretty-print ()
93  "Format the current score file."
94  (interactive)
95  (goto-char (point-min))
96  (let ((form (read (current-buffer))))
97    (erase-buffer)
98    (let ((emacs-lisp-mode-syntax-table score-mode-syntax-table))
99      (gnus-pp form)))
100  (goto-char (point-min)))
101
102(defun gnus-score-edit-exit ()
103  "Stop editing the score file."
104  (interactive)
105  (unless (file-exists-p (file-name-directory (buffer-file-name)))
106    (make-directory (file-name-directory (buffer-file-name)) t))
107  (let ((coding-system-for-write score-mode-coding-system))
108    (save-buffer))
109  (bury-buffer (current-buffer))
110  (let ((buf (current-buffer)))
111    (when gnus-score-edit-exit-function
112      (funcall gnus-score-edit-exit-function))
113    (when (eq buf (current-buffer))
114      (switch-to-buffer (other-buffer (current-buffer))))))
115
116(provide 'score-mode)
117
118;;; arch-tag: a74a416b-2505-4ad4-bc4e-a418c96b8845
119;;; score-mode.el ends here
120