Copiando una página web o parte de ella a OrgMode

Tiempo estimado de lectura: 9 minutos. 1012 palabras. emacs

Vamos a utilizar un paquete que nos va a permitir copiar el contenido de una página web o parte de él, con enlaces, etc… a orgmode

Este paquete no está en los repositorios de Melpa, así que vamos crearlo en nuestro disco duro y cargarlo al inicio.

Paquete org-w3m.el

Vamos a crear el archivo org-w3m.el, por ejemplo en la siguiente ruta ~/dotfile/emacs/paquetes/org-w3m.el .

nano ~/dotfile/emacs/paquetes/org-w3m.el

Copia el siguiente contenido.

;; org-w3m.el --- Support from copy and paste from w3m to Org-mode ;; Copyright (C) 2008-2012 Free Software Foundation, Inc. ;; Author: Andy Stewart <lazycat dot manatee at gmail dot com> ;; Keywords: outlines, hypermedia, calendar, wp ;; Homepage: http://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 <http://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-mode 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-mode style is ;; proposed by Richard, I'm just coding it. ;; ;;; Code: (require 'org) (defun org-w3m-copy-for-org-mode () "Copy current buffer content or active region with `org-mode' 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-mode 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-mode' 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-mode 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

Archivo de configuración

Ahora en el archivo .emacs o init.el, vamos a añadir la siguiente línea para cargar el paquete que acabamos de crear, al arranca Emacs.

(load-file "~/dotfile/emacs/paquetes/org-w3m.el")

Copiar y Pegar en el archivo OrgMode

Seleccionamos el texto a copiar Pulsamos C-c C-x C-w o introducimos: M-x org-w3m-copy-for-org-mode Pegamos en nuestro org

Publicado por Angel el viernes 17 enero del 2020

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