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1 ;;; gnus-scomo.el --- mode for editing Gnus score files
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2 ;; Copyright (C) 1996 Free Software Foundation, Inc.
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3
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4 ;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
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5 ;; Keywords: news, mail
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6
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7 ;; This file is part of GNU Emacs.
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8
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9 ;; GNU Emacs is free software; you can redistribute it and/or modify
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10 ;; it under the terms of the GNU General Public License as published by
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11 ;; the Free Software Foundation; either version 2, or (at your option)
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12 ;; any later version.
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13
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14 ;; GNU Emacs is distributed in the hope that it will be useful,
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15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 ;; GNU General Public License for more details.
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18
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19 ;; You should have received a copy of the GNU General Public License
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20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
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21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 ;; Boston, MA 02111-1307, USA.
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23
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24 ;;; Commentary:
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25
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26 ;;; Code:
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27
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28 (require 'easymenu)
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29 (require 'timezone)
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30 (eval-when-compile (require 'cl))
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31
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32 (defvar gnus-score-mode-hook nil
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33 "*Hook run in score mode buffers.")
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34
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35 (defvar gnus-score-menu-hook nil
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36 "*Hook run after creating the score mode menu.")
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37
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38 (defvar gnus-score-edit-exit-function nil
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39 "Function run on exit from the score buffer.")
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40
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41 (defvar gnus-score-mode-map nil)
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42 (unless gnus-score-mode-map
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43 (setq gnus-score-mode-map (copy-keymap emacs-lisp-mode-map))
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44 (define-key gnus-score-mode-map "\C-c\C-c" 'gnus-score-edit-exit)
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45 (define-key gnus-score-mode-map "\C-c\C-d" 'gnus-score-edit-insert-date)
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46 (define-key gnus-score-mode-map "\C-c\C-p" 'gnus-score-pretty-print))
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47
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48 ;;;###autoload
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49 (defun gnus-score-mode ()
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50 "Mode for editing Gnus score files.
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51 This mode is an extended emacs-lisp mode.
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52
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53 \\{gnus-score-mode-map}"
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54 (interactive)
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55 (kill-all-local-variables)
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56 (use-local-map gnus-score-mode-map)
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57 (when menu-bar-mode
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58 (gnus-score-make-menu-bar))
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59 (set-syntax-table emacs-lisp-mode-syntax-table)
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60 (setq major-mode 'gnus-score-mode)
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61 (setq mode-name "Score")
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62 (lisp-mode-variables nil)
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63 (make-local-variable 'gnus-score-edit-exit-function)
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64 (run-hooks 'emacs-lisp-mode-hook 'gnus-score-mode-hook))
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65
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66 (defun gnus-score-make-menu-bar ()
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67 (unless (boundp 'gnus-score-menu)
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68 (easy-menu-define
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69 gnus-score-menu gnus-score-mode-map ""
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70 '("Score"
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71 ["Exit" gnus-score-edit-exit t]
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72 ["Insert date" gnus-score-edit-insert-date t]
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73 ["Format" gnus-score-pretty-print t]))
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74 (run-hooks 'gnus-score-menu-hook)))
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75
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76 (defun gnus-score-edit-insert-date ()
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77 "Insert date in numerical format."
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78 (interactive)
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79 (princ (gnus-score-day-number (current-time)) (current-buffer)))
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80
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81 (defun gnus-score-pretty-print ()
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82 "Format the current score file."
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83 (interactive)
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84 (goto-char (point-min))
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85 (let ((form (read (current-buffer))))
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86 (erase-buffer)
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87 (pp form (current-buffer)))
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88 (goto-char (point-min)))
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89
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90 (defun gnus-score-edit-exit ()
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91 "Stop editing the score file."
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92 (interactive)
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93 (unless (file-exists-p (file-name-directory (buffer-file-name)))
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94 (make-directory (file-name-directory (buffer-file-name)) t))
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95 (save-buffer)
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96 (bury-buffer (current-buffer))
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97 (let ((buf (current-buffer)))
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98 (when gnus-score-edit-exit-function
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99 (funcall gnus-score-edit-exit-function))
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100 (when (eq buf (current-buffer))
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101 (switch-to-buffer (other-buffer (current-buffer))))))
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102
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103 (defun gnus-score-day-number (time)
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104 (let ((dat (decode-time time)))
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105 (timezone-absolute-from-gregorian
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106 (nth 4 dat) (nth 3 dat) (nth 5 dat))))
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107
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108 (provide 'gnus-scomo)
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109
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110 ;;; gnus-scomo.el ends here
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