1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
;;; rmailkwd.el --- part of the "RMAIL" mail reader for Emacs
;; Copyright (C) 1985, 1988, 1994, 2001, 2002, 2003, 2004, 2005, 2006,
;; 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: mail
;; Package: rmail
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(require 'rmail)
;; Global to all RMAIL buffers. It exists for the sake of completion.
;; It is better to use strings with the label functions and let them
;; worry about making the label.
(defvar rmail-label-obarray (make-vector 47 0)
"Obarray of labels used by Rmail.
`rmail-read-label' uses this to offer completion.")
;; Initialize with the standard labels.
(mapc (lambda (s) (intern (cadr s) rmail-label-obarray))
rmail-attr-array)
(defun rmail-make-label (s)
"Intern string S as a downcased symbol in `rmail-label-obarray'."
(intern (downcase s) rmail-label-obarray))
;;;###autoload
(defun rmail-add-label (label)
"Add LABEL to labels associated with current RMAIL message.
Completes (see `rmail-read-label') over known labels when reading.
LABEL may be a symbol or string. Only one label is allowed."
(interactive (list (rmail-read-label "Add label")))
(rmail-set-label label t))
;;;###autoload
(defun rmail-kill-label (label)
"Remove LABEL from labels associated with current RMAIL message.
Completes (see `rmail-read-label') over known labels when reading.
LABEL may be a symbol or string. Only one label is allowed."
(interactive (list (rmail-read-label "Remove label")))
(rmail-set-label label nil))
;;;###autoload
(defun rmail-read-label (prompt)
"Read a label with completion, prompting with PROMPT.
Completions are chosen from `rmail-label-obarray'. The default
is `rmail-last-label', if that is non-nil. Updates `rmail-last-label'
according to the choice made, and returns a symbol."
(let* ((old nil)
(result
(progn
;; If the summary exists, we've already read all the
;; existing labels. If not, read the ones in this message.
(or (eq major-mode 'rmail-summary-mode)
(rmail-summary-exists)
(and (setq old (rmail-get-keywords))
(mapc 'rmail-make-label (split-string old ", "))))
(completing-read (concat prompt
(if rmail-last-label
(concat " (default "
(symbol-name rmail-last-label)
"): ")
": "))
rmail-label-obarray
nil
nil))))
(if (string= result "")
rmail-last-label
(setq rmail-last-label (rmail-make-label result)))))
(declare-function rmail-summary-update-line "rmailsum" (n))
(defun rmail-set-label (label state &optional msg)
"Set LABEL as present or absent according to STATE in message MSG.
LABEL may be a symbol or string."
(or (stringp label) (setq label (symbol-name label)))
(if (string-match "," label)
(error "More than one label specified"))
(with-current-buffer rmail-buffer
(rmail-maybe-set-message-counters)
(or msg (setq msg rmail-current-message))
;; Force recalculation of summary for this message.
(aset rmail-summary-vector (1- msg) nil)
(let (attr-index)
;; Is this label an attribute?
(dotimes (i (length rmail-attr-array))
(if (string= (cadr (aref rmail-attr-array i)) label)
(setq attr-index i)))
(if attr-index
;; If so, set it as an attribute.
(rmail-set-attribute attr-index state msg)
;; Is this keyword already present in msg's keyword list?
(let* ((header (rmail-get-keywords msg))
(regexp (concat ", " (regexp-quote label) ","))
(present (not (null
(string-match regexp (concat ", " header ","))))))
;; If current state is not correct,
(unless (eq present state)
;; either add it or delete it.
(rmail-set-header
rmail-keyword-header msg
(if state
;; Add this keyword at the end.
(if (and header (not (string= header "")))
(concat header ", " label)
label)
;; Delete this keyword.
(let ((before (substring header 0
(max 0 (- (match-beginning 0) 2))))
(after (substring header
(min (length header)
(- (match-end 0) 1)))))
(cond ((string= before "")
;; If before and after both empty, delete the header.
(unless (string= after "")
after))
((string= after "")
before)
(t (concat before ", " after))))))))))
(if (rmail-summary-exists)
(rmail-select-summary (rmail-summary-update-line msg)))
(if (= msg rmail-current-message)
(rmail-display-labels))))
;; Motion on messages with keywords.
;;;###autoload
(defun rmail-previous-labeled-message (n labels)
"Show previous message with one of the labels LABELS.
LABELS should be a comma-separated list of label names.
If LABELS is empty, the last set of labels specified is used.
With prefix argument N moves backward N messages with these labels."
(interactive "p\nsMove to previous msg with labels: ")
(rmail-next-labeled-message (- n) labels))
(declare-function mail-comma-list-regexp "mail-utils" (labels))
;;;###autoload
(defun rmail-next-labeled-message (n labels)
"Show next message with one of the labels LABELS.
LABELS should be a comma-separated list of label names.
If LABELS is empty, the last set of labels specified is used.
With prefix argument N moves forward N messages with these labels."
;; FIXME show the default in the prompt.
(interactive "p\nsMove to next msg with labels: ")
(if (string= labels "")
(setq labels rmail-last-multi-labels))
(or labels
(error "No labels to find have been specified previously"))
(set-buffer rmail-buffer)
(setq rmail-last-multi-labels labels)
(rmail-maybe-set-message-counters)
(let ((lastwin rmail-current-message)
(current rmail-current-message)
(regexp (concat " \\("
(mail-comma-list-regexp labels)
"\\)\\(,\\|\\'\\)")))
(while (and (> n 0) (< current rmail-total-messages))
(setq current (1+ current))
(if (string-match regexp (rmail-get-labels current))
(setq lastwin current n (1- n))))
(while (and (< n 0) (> current 1))
(setq current (1- current))
(if (string-match regexp (rmail-get-labels current))
(setq lastwin current n (1+ n))))
(if (< n 0)
(error "No previous message with labels %s" labels)
(if (> n 0)
(error "No following message with labels %s" labels)
(rmail-show-message-1 lastwin)))))
(provide 'rmailkwd)
;; Local Variables:
;; generated-autoload-file: "rmail.el"
;; End:
;;; rmailkwd.el ends here
|
