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1 | ;;; rmailkwd.el --- part of the "RMAIL" mail reader for Emacs |
2 | ||
3 | ;; Copyright (C) 1985, 1988, 1994, 2001, 2002, 2003, 2004, 2005, 2006, | |
4 | ;; 2007, 2008, 2009 Free Software Foundation, Inc. | |
5 | ||
6 | ;; Maintainer: FSF | |
7 | ;; Keywords: 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 3 of the License, or | |
14 | ;; (at your option) 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. If not, see <http://www.gnu.org/licenses/>. | |
23 | ||
24 | ;;; Commentary: | |
25 | ||
26 | ;;; Code: | |
27 | ||
28 | (require 'rmail) | |
29 | ||
30 | ;; Global to all RMAIL buffers. It exists primarily for the sake of | |
31 | ;; completion. It is better to use strings with the label functions | |
32 | ;; and let them worry about making the label. | |
33 | ||
34 | (defvar rmail-label-obarray (make-vector 47 0)) | |
35 | ||
36 | (mapc (function (lambda (s) (intern s rmail-label-obarray))) | |
37 | '("deleted" "answered" "filed" "forwarded" "unseen" "edited" | |
38 | "resent")) | |
39 | ||
40 | (defun rmail-make-label (s) | |
41 | (intern (downcase s) rmail-label-obarray)) | |
42 | \f | |
43 | ;;;###autoload | |
44 | (defun rmail-add-label (string) | |
45 | "Add LABEL to labels associated with current RMAIL message. | |
46 | Performs completion over known labels when reading." | |
47 | (interactive (list (rmail-read-label "Add label"))) | |
48 | (rmail-set-label string t)) | |
49 | ||
50 | ;;;###autoload | |
51 | (defun rmail-kill-label (string) | |
52 | "Remove LABEL from labels associated with current RMAIL message. | |
53 | Performs completion over known labels when reading." | |
54 | (interactive (list (rmail-read-label "Remove label"))) | |
55 | (rmail-set-label string nil)) | |
56 | ||
57 | ;;;###autoload | |
58 | (defun rmail-read-label (prompt) | |
59 | (let ((result | |
60 | (completing-read (concat prompt | |
61 | (if rmail-last-label | |
62 | (concat " (default " | |
63 | (symbol-name rmail-last-label) | |
64 | "): ") | |
65 | ": ")) | |
66 | rmail-label-obarray | |
67 | nil | |
68 | nil))) | |
69 | (if (string= result "") | |
70 | rmail-last-label | |
71 | (setq rmail-last-label (rmail-make-label result))))) | |
72 | ||
73 | (defun rmail-set-label (label state &optional msg) | |
74 | "Set LABEL as present or absent according to STATE in message MSG." | |
75 | (with-current-buffer rmail-buffer | |
76 | (rmail-maybe-set-message-counters) | |
77 | (if (not msg) (setq msg rmail-current-message)) | |
78 | ;; Force recalculation of summary for this message. | |
79 | (aset rmail-summary-vector (1- msg) nil) | |
80 | (let (attr-index) | |
81 | ;; Is this label an attribute? | |
82 | (dotimes (i (length rmail-attr-array)) | |
83 | (if (string= (cadr (aref rmail-attr-array i)) label) | |
84 | (setq attr-index i))) | |
85 | (if attr-index | |
86 | ;; If so, set it as an attribute. | |
87 | (rmail-set-attribute attr-index state msg) | |
88 | ;; Is this keyword already present in msg's keyword list? | |
89 | (let* ((header (rmail-get-header rmail-keyword-header msg)) | |
90 | (regexp (concat ", " (regexp-quote (symbol-name label)) ",")) | |
91 | (present (string-match regexp (concat ", " header ",")))) | |
92 | ;; If current state is not correct, | |
93 | (unless (eq present state) | |
94 | ;; either add it or delete it. | |
95 | (rmail-set-header | |
96 | rmail-keyword-header msg | |
97 | (if state | |
98 | ;; Add this keyword at the end. | |
99 | (if (and header (not (string= header ""))) | |
100 | (concat header ", " (symbol-name label)) | |
101 | (symbol-name label)) | |
102 | ;; Delete this keyword. | |
103 | (let ((before (substring header 0 | |
104 | (max 0 (- (match-beginning 0) 2)))) | |
105 | (after (substring header | |
106 | (min (length header) | |
107 | (- (match-end 0) 1))))) | |
108 | (cond ((string= before "") | |
109 | after) | |
110 | ((string= after "") | |
111 | before) | |
112 | (t (concat before ", " after))))))))) | |
113 | (if (= msg rmail-current-message) | |
114 | (rmail-display-labels))))) | |
115 | \f | |
116 | ;; Motion on messages with keywords. | |
117 | ||
118 | ;;;###autoload | |
119 | (defun rmail-previous-labeled-message (n labels) | |
120 | "Show previous message with one of the labels LABELS. | |
121 | LABELS should be a comma-separated list of label names. | |
122 | If LABELS is empty, the last set of labels specified is used. | |
123 | With prefix argument N moves backward N messages with these labels." | |
124 | (interactive "p\nsMove to previous msg with labels: ") | |
125 | (rmail-next-labeled-message (- n) labels)) | |
126 | ||
127 | (declare-function mail-comma-list-regexp "mail-utils" (labels)) | |
128 | ||
129 | ;;;###autoload | |
130 | (defun rmail-next-labeled-message (n labels) | |
131 | "Show next message with one of the labels LABELS. | |
132 | LABELS should be a comma-separated list of label names. | |
133 | If LABELS is empty, the last set of labels specified is used. | |
134 | With prefix argument N moves forward N messages with these labels." | |
135 | (interactive "p\nsMove to next msg with labels: ") | |
136 | (if (string= labels "") | |
137 | (setq labels rmail-last-multi-labels)) | |
138 | (or labels | |
139 | (error "No labels to find have been specified previously")) | |
140 | (set-buffer rmail-buffer) | |
141 | (setq rmail-last-multi-labels labels) | |
142 | (rmail-maybe-set-message-counters) | |
143 | (let ((lastwin rmail-current-message) | |
144 | (current rmail-current-message) | |
80cb4057 | 145 | (regexp (concat " ?\\(" |
537ab246 | 146 | (mail-comma-list-regexp labels) |
80cb4057 | 147 | "\\)"))) |
537ab246 BG |
148 | (while (and (> n 0) (< current rmail-total-messages)) |
149 | (setq current (1+ current)) | |
150 | (if (string-match regexp (rmail-get-labels current)) | |
151 | (setq lastwin current n (1- n)))) | |
152 | (while (and (< n 0) (> current 1)) | |
153 | (setq current (1- current)) | |
154 | (if (string-match regexp (rmail-get-labels current)) | |
155 | (setq lastwin current n (1+ n)))) | |
156 | (if (< n 0) | |
157 | (error "No previous message with labels %s" labels) | |
158 | (if (> n 0) | |
159 | (error "No following message with labels %s" labels) | |
160 | (rmail-show-message lastwin))))) | |
161 | ||
162 | (provide 'rmailkwd) | |
163 | ||
537ab246 BG |
164 | ;; arch-tag: 1149979c-8e47-4333-9629-cf3dc887a6a7 |
165 | ;;; rmailkwd.el ends here |