home *** CD-ROM | disk | FTP | other *** search
- ;;; w3-hot.el --- Main functions for emacs-w3 on all platforms/versions
- ;; Author: wmperry
- ;; Created: 1998/01/06 14:20:19
- ;; Version: 1.20
- ;; Keywords: faces, help, comm, news, mail, processes, mouse, hypermedia
-
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ;;; Copyright (c) 1993 - 1996 by William M. Perry <wmperry@cs.indiana.edu>
- ;;; Copyright (c) 1996, 1997 Free Software Foundation, Inc.
- ;;;
- ;;; 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 2, 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; see the file COPYING. If not, write to the
- ;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- ;;; Boston, MA 02111-1307, USA.
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ;;; Structure for hotlists
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ;;; (
- ;;; ("name of item1" . "http://foo.bar.com/") ;; A single item in hotlist
- ;;; ("name of item2" . ( ;; A sublist
- ;;; ("name of item3" . "http://www.ack.com/")
- ;;; ))
- ;;; ) ; end of hotlist
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- (require 'w3-vars)
-
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ;;; Hotlist Handling Code
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- (defvar w3-html-bookmarks nil)
-
- (defun w3-hotlist-break-shit ()
- (let ((todo '(w3-hotlist-apropos
- w3-hotlist-delete
- w3-hotlist-rename-entry
- w3-hotlist-append
- w3-use-hotlist
- w3-hotlist-add-document
- w3-hotlist-add-document-at-point
- ))
- (cur nil))
- (while todo
- (setq cur (car todo)
- todo (cdr todo))
- (fset cur
- (`
- (lambda (&rest ignore)
- (error "Sorry, `%s' does not work with html bookmarks"
- (quote (, cur)))))))))
-
- ;;;###autoload
- (defun w3-read-html-bookmarks (fname)
- "Import an HTML file into the Emacs-w3 format."
- (interactive "fBookmark file: ")
- (if (not (file-readable-p fname))
- (error "Can not read %s..." fname))
- (save-excursion
- (set-buffer (get-buffer-create " *bookmark-work*"))
- (erase-buffer)
- (insert-file-contents fname)
- (let* ((w3-debug-html nil)
- (bkmarks nil)
- (parse (w3-parse-buffer (current-buffer))))
- (setq parse w3-last-parse-tree
- bkmarks (nreverse (w3-grok-html-bookmarks parse))
- w3-html-bookmarks bkmarks)))
- (w3-hotlist-break-shit))
-
- (eval-when-compile
- (defvar cur-stack nil)
- (defvar cur-title nil)
- (defmacro push-new-menu ()
- '(setq cur-stack (cons (list "") cur-stack)))
-
- (defmacro push-new-item (title href)
- (` (setcar cur-stack (cons (vector (, title) (list 'w3-fetch (, href)) t)
- (car cur-stack)))))
- ;;(` (setcar cur-stack (cons (cons (, title) (, href)) (car cur-stack)))))
-
- (defmacro finish-submenu ()
- '(let ((x (nreverse (car cur-stack))))
- (and x (setcar x (car cur-title)))
- (setq cur-stack (cdr cur-stack)
- cur-title (cdr cur-title))
- (if cur-stack
- (setcar cur-stack (cons x (car cur-stack)))
- (setq cur-stack (list x)))))
- )
-
- (defun w3-grok-html-bookmarks-internal (tree)
- (let (node tag content args)
- (while tree
- (setq node (car tree)
- tree (cdr tree)
- tag (and (listp node) (nth 0 node))
- args (and (listp node) (nth 1 node))
- content (and (listp node) (nth 2 node)))
- (cond
- ((eq tag 'title)
- (setq cur-title (list (w3-normalize-spaces (car content))))
- (w3-grok-html-bookmarks-internal content))
- ((memq tag '(dl ol ul))
- (push-new-menu)
- (w3-grok-html-bookmarks-internal content)
- (finish-submenu))
- ((and (memq tag '(dt li p))
- (stringp (car content)))
- (setq cur-title (cons (w3-normalize-spaces (car content))
- cur-title)))
- ((and (eq tag 'a)
- (stringp (car-safe content))
- (cdr-safe (assq 'href args)))
- (push-new-item (w3-normalize-spaces (car-safe content))
- (cdr-safe (assq 'href args))))
- (content
- (w3-grok-html-bookmarks-internal content))))))
-
- (defun w3-grok-html-bookmarks (chunk)
- (let (
- cur-title
- cur-stack
- )
- (w3-grok-html-bookmarks-internal chunk)
- (reverse (car cur-stack))))
-
- ;;;###autoload
- (defun w3-hotlist-apropos (regexp)
- "Show hotlist entries matching REGEXP."
- (interactive "sW3 Hotlist Apropos (regexp): ")
- (or w3-setup-done (w3-do-setup))
- (let ((save-buf (get-buffer "Hotlist")) ; avoid killing this
- (w3-hotlist
- (apply
- 'nconc
- (mapcar
- (function
- (lambda (entry)
- (if (or (string-match regexp (car entry))
- (string-match regexp (car (cdr entry))))
- (list entry))))
- w3-hotlist))))
- (if (not w3-hotlist)
- (message "No w3-hotlist entries match \"%s\"" regexp)
- (and save-buf (save-excursion
- (set-buffer save-buf)
- (rename-buffer (concat "Hotlist during " regexp))))
- (unwind-protect
- (let ((w3-reuse-buffers 'no))
- (w3-show-hotlist)
- (rename-buffer (concat "Hotlist \"" regexp "\""))
- (url-set-filename url-current-object (concat "hotlist/" regexp)))
- (and save-buf (save-excursion
- (set-buffer save-buf)
- (rename-buffer "Hotlist")))))))
-
- ;;;###autoload
- (defun w3-hotlist-refresh ()
- "Reload the default hotlist file into memory"
- (interactive)
- (if (not w3-setup-done) (w3-do-setup))
- (w3-parse-hotlist))
-
- (defun w3-delete-from-alist (x alist)
- ;; Remove X from ALIST, return new alist
- (if (eq (assoc x alist) (car alist)) (cdr alist)
- (delq (assoc x alist) alist)))
-
- ;;;###autoload
- (defun w3-hotlist-delete ()
- "Deletes a document from your hotlist file"
- (interactive)
- (save-excursion
- (if (not w3-hotlist) (message "No hotlist in memory!")
- (if (not (file-exists-p w3-hotlist-file))
- (message "Hotlist file %s does not exist." w3-hotlist-file)
- (let* ((completion-ignore-case t)
- (title (car (assoc (completing-read "Delete Document: "
- w3-hotlist nil t)
- w3-hotlist)))
- (case-fold-search nil)
- (buffer (get-buffer-create " *HOTW3*")))
- (and (string= title "") (error "No document specified."))
- (set-buffer buffer)
- (erase-buffer)
- (insert-file-contents w3-hotlist-file)
- (goto-char (point-min))
- (if (re-search-forward (concat "^" (regexp-quote title) "\r*$")
- nil t)
- (let ((make-backup-files nil)
- (version-control nil)
- (require-final-newline t))
- (previous-line 1)
- (beginning-of-line)
- (delete-region (point) (progn (forward-line 2) (point)))
- (write-file w3-hotlist-file)
- (setq w3-hotlist (w3-delete-from-alist title w3-hotlist))
- (kill-buffer (current-buffer)))
- (message "%s was not found in %s" title w3-hotlist-file)))))))
-
- ;;;###autoload
- (defun w3-hotlist-rename-entry (title)
- "Rename a hotlist item"
- (interactive (list (let ((completion-ignore-case t))
- (completing-read "Rename entry: " w3-hotlist nil t))))
- (cond ; Do the error handling first
- ((string= title "") (error "No document specified!"))
- ((not w3-hotlist) (error "No hotlist in memory!"))
- ((not (file-exists-p (expand-file-name w3-hotlist-file)))
- (error "Hotlist file %s does not exist." w3-hotlist-file))
- ((not (file-readable-p (expand-file-name w3-hotlist-file)))
- (error "Hotlist file %s exists, but is unreadable." w3-hotlist-file)))
- (save-excursion
- (let ((obj (assoc title w3-hotlist))
- (used (mapcar 'car w3-hotlist))
- (buff (get-buffer-create " *HOTW3*"))
- (new nil)
- )
- (while (or (null new) (member new used))
- (setq new (read-string "New name: ")))
- (set-buffer buff)
- (erase-buffer)
- (insert-file-contents (expand-file-name w3-hotlist-file))
- (goto-char (point-min))
- (if (re-search-forward (regexp-quote title) nil t)
- (let ((make-backup-files nil)
- (version-control nil)
- (require-final-newline t))
- (previous-line 1)
- (beginning-of-line)
- (delete-region (point) (progn (forward-line 2) (point)))
- (insert (format "%s %s\n%s\n" (nth 1 obj) (current-time-string)
- new))
- (setq w3-hotlist (cons (list new (nth 1 obj))
- (w3-delete-from-alist title w3-hotlist)))
- (write-file w3-hotlist-file)
- (kill-buffer (current-buffer))
- (if (not w3-running-xemacs)
- (progn
- (delete-menu-item '("Go"))
- (w3-build-FSF19-menu))))
- (message "%s was not found in %s" title w3-hotlist-file)))))
-
- ;;;###autoload
- (defun w3-hotlist-append (fname)
- "Append a hotlist to the one in memory"
- (interactive "fAppend hotlist file: ")
- (let ((x w3-hotlist))
- (w3-parse-hotlist fname)
- (setq w3-hotlist (nconc x w3-hotlist))))
-
- (defun w3-hotlist-parse-old-mosaic-format ()
- (let (cur-link cur-alias)
- (while (re-search-forward "^\n" nil t) (replace-match ""))
- (goto-line 3)
- (while (not (eobp))
- (re-search-forward "^[^ ]*" nil t)
- (setq cur-link (buffer-substring (match-beginning 0) (match-end 0)))
- (setq cur-alias (buffer-substring (progn
- (forward-line 1)
- (beginning-of-line)
- (point))
- (progn
- (end-of-line)
- (point))))
- (if (not (equal cur-alias ""))
- (setq w3-hotlist (cons (list cur-alias cur-link) w3-hotlist))))))
-
- ;;;###autoload
- (defun w3-parse-hotlist (&optional fname)
- "Read in the hotlist specified by FNAME"
- (if (not fname) (setq fname w3-hotlist-file))
- (setq w3-hotlist nil)
- (if (not (file-exists-p fname))
- (message "%s does not exist!" fname)
- (let* ((old-buffer (current-buffer))
- (buffer (get-buffer-create " *HOTW3*"))
- (case-fold-search t))
- (set-buffer buffer)
- (erase-buffer)
- (insert-file-contents fname)
- (goto-char (point-min))
- (cond
- ((looking-at "ncsa-xmosaic-hotlist-format-1");; Old-style NCSA Mosaic
- (w3-hotlist-parse-old-mosaic-format))
- ((or (looking-at "<!DOCTYPE") ; Some HTML style, including netscape
- (re-search-forward "<a[ \n]+href" nil t))
- (w3-read-html-bookmarks fname))
- (t
- (message "Cannot determine format of hotlist file: %s" fname)))
- (set-buffer-modified-p nil)
- (kill-buffer buffer)
- (set-buffer old-buffer))))
-
- ;;;###autoload
- (defun w3-use-hotlist ()
- "Possibly go to a link in your W3/Mosaic hotlist.
- This is part of the emacs World Wide Web browser. It will prompt for
- one of the items in your 'hotlist'. A hotlist is a list of often
- visited or interesting items you have found on the World Wide Web."
- (interactive)
- (if (not w3-setup-done) (w3-do-setup))
- (if (not w3-hotlist) (message "No hotlist in memory!")
- (let* ((completion-ignore-case t)
- (url (car (cdr (assoc
- (completing-read "Goto Document: " w3-hotlist nil t)
- w3-hotlist)))))
- (if (string= "" url) (error "No document specified!"))
- (w3-fetch url))))
-
- ;;;###autoload
- (defun w3-hotlist-add-document-at-point (pref-arg)
- "Add the document pointed to by the hyperlink under point to the hotlist."
- (interactive "P")
- (let ((url (w3-view-this-url t))
- (widget (widget-at (point)))
- (title nil))
- (or url (error "No link under point."))
- (if (and (widget-get widget :from)
- (widget-get widget :to))
- (setq title (buffer-substring (widget-get widget :from)
- (widget-get widget :to))))
- (w3-hotlist-add-document pref-arg (or title url) url)))
-
- ;;;###autoload
- (defun w3-hotlist-add-document (pref-arg &optional the-title the-url)
- "Add this documents url to the hotlist"
- (interactive "P")
- (save-excursion
- (let* ((buffer (get-buffer-create " *HOTW3*"))
- (title (or the-title
- (and pref-arg (read-string "Title: "))
- (buffer-name)))
- (make-backup-files nil)
- (version-control nil)
- (require-final-newline t)
- (url (or the-url (url-view-url t))))
- (if (rassoc (list url) w3-hotlist)
- (error "That item already in hotlist, use w3-hotlist-rename-entry."))
- (set-buffer buffer)
- (erase-buffer)
- (setq w3-hotlist (cons (list title url) w3-hotlist)
- url (url-unhex-string url))
- (if (not (file-exists-p w3-hotlist-file))
- (progn
- (message "Creating hotlist file %s" w3-hotlist-file)
- (insert "ncsa-xmosaic-hotlist-format-1\nDefault\n\n")
- (backward-char 1))
- (progn
- (insert-file-contents w3-hotlist-file)
- (goto-char (point-max))
- (backward-char 1)))
- (insert "\n" url " " (current-time-string) "\n" title)
- (write-file w3-hotlist-file)
- (kill-buffer (current-buffer)))))
-
- (provide 'w3-hot)
-