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
| | ;;; org-w3m.el --- Support from Copy and Paste From w3m -*- lexical-binding: t; -*-
;; Copyright (C) 2008-2018 Free Software Foundation, Inc.
;; Author: Andy Stewart <lazycat dot manatee at gmail dot com>
;; Keywords: outlines, hypermedia, calendar, wp
;; Homepage: https://orgmode.org
;;
;; This file is part of GNU Emacs.
;;
;; This program 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.
;; This program 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 <https://www.gnu.org/licenses/>.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; Commentary:
;; This file implements copying HTML content from a w3m buffer and
;; transforming the text on the fly so that it can be pasted into an
;; Org buffer with hot links. It will also work for regions in gnus
;; buffers that have been washed with w3m.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; Acknowledgments:
;; Richard Riley <rileyrgdev at googlemail dot com>
;;
;; The idea of transforming the HTML content with Org syntax is
;; proposed by Richard, I'm just coding it.
;;
;;; Code:
(require 'org)
(defvar w3m-current-url)
(defvar w3m-current-title)
(org-link-set-parameters "w3m" :store #'org-w3m-store-link)
(defun org-w3m-store-link ()
"Store a link to a w3m buffer."
(when (eq major-mode 'w3m-mode)
(org-store-link-props
:type "w3m"
:link w3m-current-url
:url (url-view-url t)
:description (or w3m-current-title w3m-current-url))))
(defun org-w3m-copy-for-org-mode ()
"Copy current buffer content or active region with Org style links.
This will encode `link-title' and `link-location' with
`org-make-link-string', and insert the transformed test into the kill ring,
so that it can be yanked into an Org buffer with links working correctly."
(interactive)
(let* ((regionp (org-region-active-p))
(transform-start (point-min))
(transform-end (point-max))
return-content
link-location link-title
temp-position out-bound)
(when regionp
(setq transform-start (region-beginning))
(setq transform-end (region-end))
;; Deactivate mark if current mark is activate.
(if (fboundp 'deactivate-mark) (deactivate-mark)))
(message "Transforming links...")
(save-excursion
(goto-char transform-start)
(while (and (not out-bound) ; still inside region to copy
(not (org-w3m-no-next-link-p))) ; no next link current buffer
;; store current point before jump next anchor
(setq temp-position (point))
;; move to next anchor when current point is not at anchor
(or (get-text-property (point) 'w3m-href-anchor) (org-w3m-get-next-link-start))
(if (<= (point) transform-end) ; if point is inside transform bound
(progn
;; get content between two links.
(if (> (point) temp-position)
(setq return-content (concat return-content
(buffer-substring
temp-position (point)))))
;; get link location at current point.
(setq link-location (get-text-property (point) 'w3m-href-anchor))
;; get link title at current point.
(setq link-title (buffer-substring (point)
(org-w3m-get-anchor-end)))
;; concat Org style url to `return-content'.
(setq return-content (concat return-content
(org-make-link-string
link-location link-title))))
(goto-char temp-position) ; reset point before jump next anchor
(setq out-bound t) ; for break out `while' loop
))
;; add the rest until end of the region to be copied
(if (< (point) transform-end)
(setq return-content
(concat return-content
(buffer-substring (point) transform-end))))
(org-kill-new return-content)
(message "Transforming links...done, use C-y to insert text into Org file")
(message "Copy with link transformation complete."))))
(defun org-w3m-get-anchor-start ()
"Move cursor to the start of current anchor. Return point."
;; get start position of anchor or current point
(goto-char (or (previous-single-property-change (point) 'w3m-anchor-sequence)
(point))))
(defun org-w3m-get-anchor-end ()
"Move cursor to the end of current anchor. Return point."
;; get end position of anchor or point
(goto-char (or (next-single-property-change (point) 'w3m-anchor-sequence)
(point))))
(defun org-w3m-get-next-link-start ()
"Move cursor to the start of next link. Return point."
(catch 'reach
(while (next-single-property-change (point) 'w3m-anchor-sequence)
;; jump to next anchor
(goto-char (next-single-property-change (point) 'w3m-anchor-sequence))
(when (get-text-property (point) 'w3m-href-anchor)
;; return point when current is valid link
(throw 'reach nil))))
(point))
(defun org-w3m-get-prev-link-start ()
"Move cursor to the start of previous link. Return point."
(catch 'reach
(while (previous-single-property-change (point) 'w3m-anchor-sequence)
;; jump to previous anchor
(goto-char (previous-single-property-change (point) 'w3m-anchor-sequence))
(when (get-text-property (point) 'w3m-href-anchor)
;; return point when current is valid link
(throw 'reach nil))))
(point))
(defun org-w3m-no-next-link-p ()
"Whether there is no next link after the cursor.
Return t if there is no next link; otherwise, return nil."
(save-excursion
(equal (point) (org-w3m-get-next-link-start))))
(defun org-w3m-no-prev-link-p ()
"Whether there is no previous link after the cursor.
Return t if there is no previous link; otherwise, return nil."
(save-excursion
(equal (point) (org-w3m-get-prev-link-start))))
;; Install keys into the w3m keymap
(defvar w3m-mode-map)
(defvar w3m-minor-mode-map)
(when (and (boundp 'w3m-mode-map)
(keymapp w3m-mode-map))
(define-key w3m-mode-map "\C-c\C-x\M-w" 'org-w3m-copy-for-org-mode)
(define-key w3m-mode-map "\C-c\C-x\C-w" 'org-w3m-copy-for-org-mode))
(when (and (boundp 'w3m-minor-mode-map)
(keymapp w3m-minor-mode-map))
(define-key w3m-minor-mode-map "\C-c\C-x\M-w" 'org-w3m-copy-for-org-mode)
(define-key w3m-minor-mode-map "\C-c\C-x\C-w" 'org-w3m-copy-for-org-mode))
(add-hook
'w3m-mode-hook
(lambda ()
(define-key w3m-mode-map "\C-c\C-x\M-w" 'org-w3m-copy-for-org-mode)
(define-key w3m-mode-map "\C-c\C-x\C-w" 'org-w3m-copy-for-org-mode)))
(add-hook
'w3m-minor-mode-hook
(lambda ()
(define-key w3m-minor-mode-map "\C-c\C-x\M-w" 'org-w3m-copy-for-org-mode)
(define-key w3m-minor-mode-map "\C-c\C-x\C-w" 'org-w3m-copy-for-org-mode)))
(provide 'org-w3m)
;;; org-w3m.el ends here
|