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diff --git a/lisp/url/url-mailto.el b/lisp/url/url-mailto.el
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+;;; url-mail.el --- Mail Uniform Resource Locator retrieval code
+;; Author: $Author: fx $
+;; Created: $Date: 2001/10/05 17:04:06 $
+;; Version: $Revision: 1.4 $
+;; Keywords: comm, data, processes
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;; Copyright (c) 1993 - 1996 by William M. Perry <wmperry@cs.indiana.edu>
+;;; Copyright (c) 1996 - 1999 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.
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(eval-when-compile (require 'cl))
+(require 'url-vars)
+(require 'url-parse)
+(require 'url-util)
+
+;;;###autoload
+(defun url-mail (&rest args)
+  (interactive "P")
+  (if (fboundp 'message-mail)
+      (apply 'message-mail args)
+    (or (apply 'mail args)
+	(error "Mail aborted"))))
+
+(defun url-mail-goto-field (field)
+  (if (not field)
+      (goto-char (point-max))
+    (let ((dest nil)
+	  (lim nil)
+	  (case-fold-search t))
+      (save-excursion
+	(goto-char (point-min))
+	(if (re-search-forward (regexp-quote mail-header-separator) nil t)
+	    (setq lim (match-beginning 0)))
+	(goto-char (point-min))
+	(if (re-search-forward (concat "^" (regexp-quote field) ":") lim t)
+	    (setq dest (match-beginning 0))))
+      (if dest
+	  (progn
+	    (goto-char dest)
+	    (end-of-line))
+	(goto-char lim)
+	(insert (capitalize field) ": ")
+	(save-excursion
+	  (insert "\n"))))))
+
+;;;###autoload
+(defun url-mailto (url)
+  "Handle the mailto: URL syntax."
+  (if (url-user url)
+      ;; malformed mailto URL (mailto://wmperry@gnu.org instead of
+      ;; mailto:wmperry@gnu.org
+      (url-set-filename url (concat (url-user url) "@" (url-filename url))))
+  (setq url (url-filename url))
+  (let (to args source-url subject func headers-start)
+    (if (string-match (regexp-quote "?") url)
+	(setq headers-start (match-end 0)
+	      to (url-unhex-string (substring url 0 (match-beginning 0)))
+	      args (url-parse-query-string
+		    (substring url headers-start nil) t))
+      (setq to (url-unhex-string url)))
+    (setq source-url (url-view-url t))
+    (if (and url-request-data (not (assoc "subject" args)))
+	(setq args (cons (list "subject"
+			       (concat "Automatic submission from "
+				       url-package-name "/"
+				       url-package-version)) args)))
+    (if (and source-url (not (assoc "x-url-from" args)))
+	(setq args (cons (list "x-url-from" source-url) args)))
+
+    (if (assoc "to" args)
+	(push to (cdr (assoc "to" args)))
+      (setq args (cons (list "to" to) args)))
+    (setq subject (cdr-safe (assoc "subject" args)))
+    (if (fboundp url-mail-command) (funcall url-mail-command) (mail))
+    (while args
+      (if (string= (caar args) "body")
+	  (progn
+	    (goto-char (point-max))
+	    (insert (mapconcat 'identity (cdar args) "\n")))
+	(url-mail-goto-field (caar args))
+	(setq func (intern-soft (concat "mail-" (caar args))))
+	(insert (mapconcat 'identity (cdar args) ", ")))
+      (setq args (cdr args)))
+    ;; (url-mail-goto-field "User-Agent")
+;;     (insert url-package-name "/" url-package-version " URL/" url-version)
+    (if (not url-request-data)
+	(progn
+	  (set-buffer-modified-p nil)
+	  (if subject
+	      (url-mail-goto-field nil)
+	    (url-mail-goto-field "subject")))
+      (if url-request-extra-headers
+	  (mapconcat
+	   (lambda (x)
+	     (url-mail-goto-field (car x))
+	     (insert (cdr x)))
+	   url-request-extra-headers ""))
+      (goto-char (point-max))
+      (insert url-request-data)
+      ;; It seems Microsoft-ish to send without warning.
+      ;; Fixme: presumably this should depend on a privacy setting.
+      (if (y-or-n-p "Send this auto-generated mail? ")
+	  (cond ((eq url-mail-command 'compose-mail)
+		 (funcall (get mail-user-agent 'sendfunc) nil))
+		;; otherwise, we can't be sure
+		((fboundp 'message-mail)
+		 (message-send-and-exit))
+		(t (mail-send-and-exit nil)))))
+    nil))
+
+(provide 'url-mailto)