Commit e5f29d66 authored by Carsten Dominik's avatar Carsten Dominik

New file org-w3m.el.

parent ff4be292
;;; org-w3m.el --- Support from copy and paste from w3m to Org-mode
;; Copyright (C) 2008 Free Software Foundation, Inc.
;; Author: Andy Stewart <lazycat dot manatee at gmail dot com>
;; Keywords: outlines, hypermedia, calendar, wp
;; Homepage: http://orgmode.org
;; Version: 6.14
;;
;; 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
;; transfomring 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 ben washed with w3m.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; Acknowledgments:
;; Richard Riley <rileyrgdev at googlemail dot com>
;;
;; The idea that transfomring the HTML content with org-mode style is
;; proposed by Richard, i'm just code it.
;;
(require 'org)
(declare-function w3m-anchor "ext:w3m-util" (position))
(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 transform-end
return-content
link-location link-title
temp-position out-bound)
(setq transform-start (if regionp (region-beginning) (point-min))
transform-end (if regionp (region-end) (point-max)))
(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 (w3m-anchor (point)) (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 (w3m-anchor (point)))
;; 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 en end of the region to be copied
(if (< (point) transform-end)
(setq return-content
(concat return-content
(buffer-substring (point) transform-end))))
(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 to and return `point' for the start of the current anchor."
;; 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 and return `point' after the end of current anchor."
;; 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 and return `point' for that start of the current link."
(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 (w3m-anchor (point))
;; return point when current is valid link
(throw 'reach nil))))
(point))
(defun org-w3m-get-prev-link-start ()
"Move and return `point' for that end of the current link."
(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 (w3m-anchor (point))
;; return point when current is valid link
(throw 'reach nil))))
(point))
(defun org-w3m-no-next-link-p ()
"Return t if no next link after cursor.
Otherwise, return nil."
(save-excursion
(equal (point) (org-w3m-get-next-link-start))))
(defun org-w3m-no-prev-link-p ()
"Return t if no prevoius link after cursor.
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)
;; arch-tag: 851d7447-488d-49f0-a14d-46c092e84352
;;; org-w3m.el ends here
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