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authormattkae <mattkae@protonmail.com>2022-06-07 08:23:47 -0400
committermattkae <mattkae@protonmail.com>2022-06-07 08:23:47 -0400
commitbd18a38c2898548a3664a9ddab9f79c84f2caf4a (patch)
tree95b9933376770381bd8859782ae763be81c2d72b /elpa/org-9.5.2/ol-w3m.el
parentb07628dddf418d4f47b858e6c35fd3520fbaeed2 (diff)
parentef160dea332af4b4fe5e2717b962936c67e5fe9e (diff)
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-;;; ol-w3m.el --- Copy and Paste From W3M -*- lexical-binding: t; -*-
-
-;; Copyright (C) 2008-2021 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.
-
-;; 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 <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 'ol)
-
-(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-link-store-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-link-make-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.
- (when (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))
- (cond
- ((<= (point) transform-end) ; point is inside transform bound
- ;; get content between two links.
- (when (> (point) temp-position)
- (setq return-content (concat return-content
- (buffer-substring
- temp-position (point)))))
- (cond
- ((setq link-location (get-text-property (point) 'w3m-href-anchor))
- ;; current point is a link
- ;; (we thus also got link location at current point)
- ;; 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
- (if (org-string-nw-p link-location)
- (org-link-make-string link-location link-title)
- link-title))))
- ((setq link-location (get-text-property (point) 'w3m-image))
- ;; current point is an image
- ;; (we thus also got image link location at current point)
- ;; get link title at current point.
- (setq link-title (buffer-substring (point) (org-w3m-get-image-end)))
- ;; concat Org style url to `return-content'.
- (setq return-content
- (concat return-content
- (if (org-string-nw-p link-location)
- (org-link-make-string link-location link-title)
- link-title))))
- (t nil))); current point is neither a link nor an image
- (t ; point is NOT inside transform bound
- (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
- (when (< (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
- ;; NOTE: This function seems never to be used. Should it be removed?
- (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-image-end ()
- "Move cursor to the end of current image. Return point."
- ;; get end position of image or point
- ;; NOTE: Function `org-w3m-get-image-start' was not created because
- ;; function `org-w3m-get-anchor-start' is never used.
- (goto-char (or (next-single-property-change (point) 'w3m-image)
- (point))))
-
-(defun org-w3m-get-next-link-start ()
- "Move cursor to the start of next link or image. Return point."
- (let (pos start-pos anchor-pos image-pos)
- (setq pos (setq start-pos (point)))
- (setq anchor-pos
- (catch 'reach
- (while (setq pos (next-single-property-change pos 'w3m-anchor-sequence))
- (when (get-text-property pos 'w3m-href-anchor)
- (throw 'reach pos)))))
- (setq pos start-pos)
- (setq image-pos
- (catch 'reach
- (while (setq pos (next-single-property-change pos 'w3m-image))
- (when (get-text-property pos 'w3m-image)
- (throw 'reach pos)))))
- (goto-char (min (or anchor-pos (point-max)) (or image-pos (point-max))))))
-
-(defun org-w3m-get-prev-link-start ()
- "Move cursor to the start of previous link. Return point."
- ;; NOTE: This function is only called by `org-w3m-no-prev-link-p',
- ;; which itself seems never to be used. Should it be removed?
- ;;
- ;; WARNING: This function has not been updated to account for
- ;; `w3m-image'. See `org-w3m-get-next-link-start'.
- (catch 'reach
- (let ((pos (point)))
- (while (setq pos (previous-single-property-change pos 'w3m-anchor-sequence))
- (when (get-text-property pos 'w3m-href-anchor)
- ;; jump to previous anchor
- (goto-char pos)
- ;; 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."
- ;; NOTE: This function seems never to be used. Should it be removed?
- (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 'ol-w3m)
-
-;;; ol-w3m.el ends here