Start implementation.

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+;;; render-html.el --- Quoted-Printable functions
+
+;; Copyright (C) 2010  Free Software Foundation, Inc.
+
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
+;; Keywords: html, web
+
+;; 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:
+
+;; The idea is to provide a simple, fast and pretty minimal way to
+;; render HTML (including links and images) in a buffer, based on an
+;; external HTML renderer (i.e., w3m).
+
+;;; Code:
+
+(defun render-html-file (file)
+  (erase-buffer)
+  (let ((process (start-process "w3m" (current-buffer)
+                               "w3m" "-halfdump" file)))
+    (set-process-sentinel process 'render-html-finished-rendering)))
+
+(defun render-html-finished-rendering (process event)
+  (when (string-match "finished" event)
+    (save-excursion
+      (set-buffer (process-buffer process))
+      (render-html-wash-tags))))
+
+(defun render-html-wash-tags ()
+  (let (tag parameters string)
+    ;;(subst-char-in-region (point-min) (point-max) ?_ ? )
+    (goto-char (point-min))
+    (while (re-search-forward "<\\([^ ]+\\)\\([^>]*\\)>\\([^<]*\\)<[^>]*>" nil t)
+      (setq tag (match-string 1)
+           parameters (match-string 2)
+           string (match-string 3))
+      (replace-match string))))
+
+;;; render-html.el ends here