Commit | Line | Data |
---|---|---|
537ab246 BG |
1 | ;;; rmailkwd.el --- part of the "RMAIL" mail reader for Emacs |
2 | ||
ba318903 | 3 | ;; Copyright (C) 1985, 1988, 1994, 2001-2014 Free Software Foundation, |
ab422c4d | 4 | ;; Inc. |
537ab246 | 5 | |
34dc21db | 6 | ;; Maintainer: emacs-devel@gnu.org |
537ab246 | 7 | ;; Keywords: mail |
bd78fa1d | 8 | ;; Package: rmail |
537ab246 BG |
9 | |
10 | ;; This file is part of GNU Emacs. | |
11 | ||
12 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
13 | ;; it under the terms of the GNU General Public License as published by | |
14 | ;; the Free Software Foundation, either version 3 of the License, or | |
15 | ;; (at your option) any later version. | |
16 | ||
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. | |
24 | ||
25 | ;;; Commentary: | |
26 | ||
27 | ;;; Code: | |
28 | ||
29 | (require 'rmail) | |
30 | ||
c36e6767 GM |
31 | ;; Global to all RMAIL buffers. It exists for the sake of completion. |
32 | ;; It is better to use strings with the label functions and let them | |
33 | ;; worry about making the label. | |
34 | (defvar rmail-label-obarray (make-vector 47 0) | |
35 | "Obarray of labels used by Rmail. | |
36 | `rmail-read-label' uses this to offer completion.") | |
537ab246 | 37 | |
c36e6767 GM |
38 | ;; Initialize with the standard labels. |
39 | (mapc (lambda (s) (intern (cadr s) rmail-label-obarray)) | |
40 | rmail-attr-array) | |
537ab246 BG |
41 | |
42 | (defun rmail-make-label (s) | |
8e87c426 | 43 | "Intern string S as a downcased symbol in `rmail-label-obarray'." |
537ab246 BG |
44 | (intern (downcase s) rmail-label-obarray)) |
45 | \f | |
46 | ;;;###autoload | |
c36e6767 | 47 | (defun rmail-add-label (label) |
537ab246 | 48 | "Add LABEL to labels associated with current RMAIL message. |
c36e6767 | 49 | Completes (see `rmail-read-label') over known labels when reading. |
6dd50fed | 50 | LABEL may be a symbol or string. Only one label is allowed." |
537ab246 | 51 | (interactive (list (rmail-read-label "Add label"))) |
c36e6767 | 52 | (rmail-set-label label t)) |
537ab246 BG |
53 | |
54 | ;;;###autoload | |
c36e6767 | 55 | (defun rmail-kill-label (label) |
537ab246 | 56 | "Remove LABEL from labels associated with current RMAIL message. |
c36e6767 | 57 | Completes (see `rmail-read-label') over known labels when reading. |
6dd50fed | 58 | LABEL may be a symbol or string. Only one label is allowed." |
537ab246 | 59 | (interactive (list (rmail-read-label "Remove label"))) |
c36e6767 | 60 | (rmail-set-label label nil)) |
537ab246 BG |
61 | |
62 | ;;;###autoload | |
63 | (defun rmail-read-label (prompt) | |
c36e6767 GM |
64 | "Read a label with completion, prompting with PROMPT. |
65 | Completions are chosen from `rmail-label-obarray'. The default | |
66 | is `rmail-last-label', if that is non-nil. Updates `rmail-last-label' | |
67 | according to the choice made, and returns a symbol." | |
28e50631 GM |
68 | (let* ((old nil) |
69 | (result | |
70 | (progn | |
71 | ;; If the summary exists, we've already read all the | |
72 | ;; existing labels. If not, read the ones in this message. | |
73 | (or (eq major-mode 'rmail-summary-mode) | |
74 | (rmail-summary-exists) | |
75 | (and (setq old (rmail-get-keywords)) | |
76 | (mapc 'rmail-make-label (split-string old ", ")))) | |
77 | (completing-read (concat prompt | |
78 | (if rmail-last-label | |
79 | (concat " (default " | |
80 | (symbol-name rmail-last-label) | |
81 | "): ") | |
82 | ": ")) | |
83 | rmail-label-obarray | |
84 | nil | |
85 | nil)))) | |
537ab246 BG |
86 | (if (string= result "") |
87 | rmail-last-label | |
88 | (setq rmail-last-label (rmail-make-label result))))) | |
89 | ||
314a8fc3 GM |
90 | (declare-function rmail-summary-update-line "rmailsum" (n)) |
91 | ||
537ab246 | 92 | (defun rmail-set-label (label state &optional msg) |
c36e6767 GM |
93 | "Set LABEL as present or absent according to STATE in message MSG. |
94 | LABEL may be a symbol or string." | |
95 | (or (stringp label) (setq label (symbol-name label))) | |
6dd50fed RS |
96 | (if (string-match "," label) |
97 | (error "More than one label specified")) | |
537ab246 BG |
98 | (with-current-buffer rmail-buffer |
99 | (rmail-maybe-set-message-counters) | |
8038d2d2 GM |
100 | (if (zerop (or msg (setq msg rmail-current-message))) |
101 | (error "No message")) | |
537ab246 BG |
102 | ;; Force recalculation of summary for this message. |
103 | (aset rmail-summary-vector (1- msg) nil) | |
104 | (let (attr-index) | |
105 | ;; Is this label an attribute? | |
106 | (dotimes (i (length rmail-attr-array)) | |
107 | (if (string= (cadr (aref rmail-attr-array i)) label) | |
108 | (setq attr-index i))) | |
109 | (if attr-index | |
110 | ;; If so, set it as an attribute. | |
111 | (rmail-set-attribute attr-index state msg) | |
112 | ;; Is this keyword already present in msg's keyword list? | |
3e8fc1b6 | 113 | (let* ((header (rmail-get-keywords msg)) |
655a218a | 114 | (regexp (concat ", " (regexp-quote label) ",")) |
4b84883a GM |
115 | (present (not (null |
116 | (string-match regexp (concat ", " header ",")))))) | |
537ab246 BG |
117 | ;; If current state is not correct, |
118 | (unless (eq present state) | |
119 | ;; either add it or delete it. | |
120 | (rmail-set-header | |
121 | rmail-keyword-header msg | |
122 | (if state | |
123 | ;; Add this keyword at the end. | |
124 | (if (and header (not (string= header ""))) | |
c36e6767 GM |
125 | (concat header ", " label) |
126 | label) | |
537ab246 BG |
127 | ;; Delete this keyword. |
128 | (let ((before (substring header 0 | |
129 | (max 0 (- (match-beginning 0) 2)))) | |
130 | (after (substring header | |
131 | (min (length header) | |
132 | (- (match-end 0) 1))))) | |
133 | (cond ((string= before "") | |
a99e0e1b GM |
134 | ;; If before and after both empty, delete the header. |
135 | (unless (string= after "") | |
136 | after)) | |
537ab246 BG |
137 | ((string= after "") |
138 | before) | |
c36e6767 GM |
139 | (t (concat before ", " after)))))))))) |
140 | (if (rmail-summary-exists) | |
8e87c426 | 141 | (rmail-select-summary (rmail-summary-update-line msg))) |
c36e6767 GM |
142 | (if (= msg rmail-current-message) |
143 | (rmail-display-labels)))) | |
537ab246 BG |
144 | \f |
145 | ;; Motion on messages with keywords. | |
146 | ||
147 | ;;;###autoload | |
148 | (defun rmail-previous-labeled-message (n labels) | |
149 | "Show previous message with one of the labels LABELS. | |
150 | LABELS should be a comma-separated list of label names. | |
151 | If LABELS is empty, the last set of labels specified is used. | |
152 | With prefix argument N moves backward N messages with these labels." | |
153 | (interactive "p\nsMove to previous msg with labels: ") | |
154 | (rmail-next-labeled-message (- n) labels)) | |
155 | ||
156 | (declare-function mail-comma-list-regexp "mail-utils" (labels)) | |
157 | ||
158 | ;;;###autoload | |
159 | (defun rmail-next-labeled-message (n labels) | |
160 | "Show next message with one of the labels LABELS. | |
161 | LABELS should be a comma-separated list of label names. | |
162 | If LABELS is empty, the last set of labels specified is used. | |
163 | With prefix argument N moves forward N messages with these labels." | |
35426db4 | 164 | ;; FIXME show the default in the prompt. |
537ab246 BG |
165 | (interactive "p\nsMove to next msg with labels: ") |
166 | (if (string= labels "") | |
167 | (setq labels rmail-last-multi-labels)) | |
168 | (or labels | |
169 | (error "No labels to find have been specified previously")) | |
170 | (set-buffer rmail-buffer) | |
171 | (setq rmail-last-multi-labels labels) | |
172 | (rmail-maybe-set-message-counters) | |
173 | (let ((lastwin rmail-current-message) | |
174 | (current rmail-current-message) | |
6e77127f | 175 | (regexp (concat " \\(" |
537ab246 | 176 | (mail-comma-list-regexp labels) |
ee1b0cc0 | 177 | "\\)\\(,\\|\\'\\)"))) |
537ab246 BG |
178 | (while (and (> n 0) (< current rmail-total-messages)) |
179 | (setq current (1+ current)) | |
180 | (if (string-match regexp (rmail-get-labels current)) | |
181 | (setq lastwin current n (1- n)))) | |
182 | (while (and (< n 0) (> current 1)) | |
183 | (setq current (1- current)) | |
184 | (if (string-match regexp (rmail-get-labels current)) | |
185 | (setq lastwin current n (1+ n)))) | |
186 | (if (< n 0) | |
187 | (error "No previous message with labels %s" labels) | |
188 | (if (> n 0) | |
189 | (error "No following message with labels %s" labels) | |
a1a29341 | 190 | (rmail-show-message-1 lastwin))))) |
537ab246 BG |
191 | |
192 | (provide 'rmailkwd) | |
193 | ||
35426db4 GM |
194 | ;; Local Variables: |
195 | ;; generated-autoload-file: "rmail.el" | |
196 | ;; End: | |
197 | ||
537ab246 | 198 | ;;; rmailkwd.el ends here |