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Mateus Pinto Rodrigues
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elpa/org-20171030/org-w3m.el
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183
elpa/org-20171030/org-w3m.el
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;;; org-w3m.el --- Support from Copy and Paste From w3m -*- lexical-binding: t; -*-
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;; Copyright (C) 2008-2017 Free Software Foundation, Inc.
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;; Author: Andy Stewart <lazycat dot manatee at gmail dot com>
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;; Keywords: outlines, hypermedia, calendar, wp
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;; Homepage: http://orgmode.org
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;;
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;; This file is part of GNU Emacs.
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;;
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;; This program is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;;; Commentary:
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;; This file implements copying HTML content from a w3m buffer and
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;; transforming the text on the fly so that it can be pasted into an
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;; Org buffer with hot links. It will also work for regions in gnus
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;; buffers that have been washed with w3m.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;;; Acknowledgments:
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;; Richard Riley <rileyrgdev at googlemail dot com>
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;;
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;; The idea of transforming the HTML content with Org syntax is
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;; proposed by Richard, I'm just coding it.
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;;
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;;; Code:
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(require 'org)
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(defvar w3m-current-url)
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(defvar w3m-current-title)
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(org-link-set-parameters "w3m" :store #'org-w3m-store-link)
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(defun org-w3m-store-link ()
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"Store a link to a w3m buffer."
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(when (eq major-mode 'w3m-mode)
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(org-store-link-props
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:type "w3m"
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:link w3m-current-url
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:url (url-view-url t)
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:description (or w3m-current-title w3m-current-url))))
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(defun org-w3m-copy-for-org-mode ()
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"Copy current buffer content or active region with `org-mode' style links.
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This will encode `link-title' and `link-location' with
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`org-make-link-string', and insert the transformed test into the kill ring,
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so that it can be yanked into an Org buffer with links working correctly."
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(interactive)
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(let* ((regionp (org-region-active-p))
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(transform-start (point-min))
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(transform-end (point-max))
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return-content
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link-location link-title
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temp-position out-bound)
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(when regionp
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(setq transform-start (region-beginning))
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(setq transform-end (region-end))
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;; Deactivate mark if current mark is activate.
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(if (fboundp 'deactivate-mark) (deactivate-mark)))
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(message "Transforming links...")
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(save-excursion
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(goto-char transform-start)
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(while (and (not out-bound) ; still inside region to copy
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(not (org-w3m-no-next-link-p))) ; no next link current buffer
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;; store current point before jump next anchor
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(setq temp-position (point))
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;; move to next anchor when current point is not at anchor
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(or (get-text-property (point) 'w3m-href-anchor) (org-w3m-get-next-link-start))
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(if (<= (point) transform-end) ; if point is inside transform bound
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(progn
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;; get content between two links.
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(if (> (point) temp-position)
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(setq return-content (concat return-content
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(buffer-substring
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temp-position (point)))))
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;; get link location at current point.
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(setq link-location (get-text-property (point) 'w3m-href-anchor))
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;; get link title at current point.
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(setq link-title (buffer-substring (point)
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(org-w3m-get-anchor-end)))
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;; concat `org-mode' style url to `return-content'.
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(setq return-content (concat return-content
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(org-make-link-string
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link-location link-title))))
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(goto-char temp-position) ; reset point before jump next anchor
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(setq out-bound t) ; for break out `while' loop
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))
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;; add the rest until end of the region to be copied
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(if (< (point) transform-end)
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(setq return-content
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(concat return-content
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(buffer-substring (point) transform-end))))
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(org-kill-new return-content)
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(message "Transforming links...done, use C-y to insert text into Org file")
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(message "Copy with link transformation complete."))))
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(defun org-w3m-get-anchor-start ()
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"Move cursor to the start of current anchor. Return point."
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;; get start position of anchor or current point
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(goto-char (or (previous-single-property-change (point) 'w3m-anchor-sequence)
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(point))))
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(defun org-w3m-get-anchor-end ()
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"Move cursor to the end of current anchor. Return point."
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;; get end position of anchor or point
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(goto-char (or (next-single-property-change (point) 'w3m-anchor-sequence)
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(point))))
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(defun org-w3m-get-next-link-start ()
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"Move cursor to the start of next link. Return point."
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(catch 'reach
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(while (next-single-property-change (point) 'w3m-anchor-sequence)
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;; jump to next anchor
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(goto-char (next-single-property-change (point) 'w3m-anchor-sequence))
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(when (get-text-property (point) 'w3m-href-anchor)
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;; return point when current is valid link
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(throw 'reach nil))))
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(point))
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(defun org-w3m-get-prev-link-start ()
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"Move cursor to the start of previous link. Return point."
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(catch 'reach
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(while (previous-single-property-change (point) 'w3m-anchor-sequence)
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;; jump to previous anchor
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(goto-char (previous-single-property-change (point) 'w3m-anchor-sequence))
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(when (get-text-property (point) 'w3m-href-anchor)
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;; return point when current is valid link
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(throw 'reach nil))))
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(point))
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(defun org-w3m-no-next-link-p ()
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"Whether there is no next link after the cursor.
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Return t if there is no next link; otherwise, return nil."
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(save-excursion
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(equal (point) (org-w3m-get-next-link-start))))
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(defun org-w3m-no-prev-link-p ()
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"Whether there is no previous link after the cursor.
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Return t if there is no previous link; otherwise, return nil."
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(save-excursion
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(equal (point) (org-w3m-get-prev-link-start))))
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;; Install keys into the w3m keymap
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(defvar w3m-mode-map)
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(defvar w3m-minor-mode-map)
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(when (and (boundp 'w3m-mode-map)
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(keymapp w3m-mode-map))
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(define-key w3m-mode-map "\C-c\C-x\M-w" 'org-w3m-copy-for-org-mode)
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(define-key w3m-mode-map "\C-c\C-x\C-w" 'org-w3m-copy-for-org-mode))
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(when (and (boundp 'w3m-minor-mode-map)
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(keymapp w3m-minor-mode-map))
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(define-key w3m-minor-mode-map "\C-c\C-x\M-w" 'org-w3m-copy-for-org-mode)
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(define-key w3m-minor-mode-map "\C-c\C-x\C-w" 'org-w3m-copy-for-org-mode))
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(add-hook
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'w3m-mode-hook
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(lambda ()
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(define-key w3m-mode-map "\C-c\C-x\M-w" 'org-w3m-copy-for-org-mode)
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(define-key w3m-mode-map "\C-c\C-x\C-w" 'org-w3m-copy-for-org-mode)))
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(add-hook
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'w3m-minor-mode-hook
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(lambda ()
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(define-key w3m-minor-mode-map "\C-c\C-x\M-w" 'org-w3m-copy-for-org-mode)
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(define-key w3m-minor-mode-map "\C-c\C-x\C-w" 'org-w3m-copy-for-org-mode)))
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(provide 'org-w3m)
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;;; org-w3m.el ends here
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