utils/wl-mailto.el

   1 ;;; wl-mailto.el -- some mailto support for wanderlust
   2
   3 ;;; Copyright (C) 1999 Sen Nagata
   4
   5 ;; Author: Sen Nagata <sen@eccosys.com>
   6 ;; Version: 0.5
   7 ;; License: GPL 2
   8 ;; Warning: not optimized at all
   9
  10 ;; This file is not a part of GNU Emacs.
  11
  12 ;;; Commentary:
  13 ;;
  14 ;; required elisp packages:
  15 ;;
  16 ;;   -wl (>= 0.9.6?)
  17 ;;
  18 ;;   -rfc2368.el
  19 ;;   -thingatpt.el or browse-url.el
  20 ;;
  21 ;; installation:
  22 ;;
  23 ;;   -put this file (and rfc2368.el) in an appropriate directory (so Emacs
  24 ;;    can find it)
  25 ;;
  26 ;;   <necessary>
  27 ;;   -put:
  28 ;;
  29 ;;     (add-hook 'wl-init-hook (lambda () (require 'wl-mailto)))
  30 ;;
  31 ;;    in .emacs or .wl
  32 ;;
  33 ;; details:
  34 ;;
  35 ;;   this package provides a number of interactive functions
  36 ;; (commands) for the user.  each of the commands ultimately creates a
  37 ;; draft message based on some information.  the names of the commands
  38 ;; and brief descriptions are:
  39 ;;
  40 ;;     1) wl-mailto-compose-message-from-mailto-url
  41 ;;            make a draft message from a user-specified mailto: url
  42 ;;
  43 ;;     2) wl-mailto-compose-message-from-mailto-url-at-point
  44 ;;            make a draft message from a mailto: url at point
  45 ;;
  46 ;; usage:
  47 ;;
  48 ;;   -invoke wl
  49 ;;   -try out the commands mentioned above in 'details'
  50
  51 ;;; History:
  52 ;;
  53 ;; 0.5
  54 ;;
  55 ;;   wl-user-agent functionality merged into wl-draft.el, so removed
  56 ;;    dependency
  57 ;;
  58 ;; 1999-06-24:
  59 ;;
  60 ;;   incorporated a patch from Kenichi OKADA for
  61 ;;     wl-mailto-compose-message-from-mailto-url-at-point
  62 ;;
  63 ;; 1999-06-11:
  64 ;;
  65 ;;   fixed a typo
  66 ;;
  67 ;; 0.4
  68 ;;
  69 ;; 1999-06-01:
  70 ;;
  71 ;;   checkdoc checking
  72 ;;   xemacs compatibility
  73 ;;
  74 ;; 1999-05-31:
  75 ;;
  76 ;;   rewrote to use rfc2368.el and wl-user-agent.el
  77
  78 ;;; Code:
  79 (defconst wl-mailto-version "wl-mailto.el 0.5")
  80
  81 ;; how should we handle the dependecy on wl?
  82 ;; will this work?
  83 (eval-when-compile
  84   (require 'wl)
  85   (defun wl-mailto-url-at-point ()))
  86
  87
  88 ;; use rfc2368 support -- should be usable for things other than wl too
  89 (require 'rfc2368)
  90
  91 ;; yucky compatibility stuff -- someone help me w/ this, please...
  92 (if (and (string-match "^XEmacs \\([0-9.]+\\)" (emacs-version))
  93          (< (string-to-number (match-string 1 (emacs-version))) 21))
  94     ;; for xemacs versions less than 21, use browse-url.el
  95     (progn
  96       (require 'browse-url)
  97       (fset 'wl-mailto-url-at-point
  98             'browse-url-url-at-point))
  99   ;; for everything else, use thingatpt.el
 100   (progn
 101     (require 'thingatpt)
 102     (fset 'wl-mailto-url-at-point
 103           (lambda ()
 104             (thing-at-point 'url)))))
 105
 106 (defun wl-mailto-compose-message-from-mailto-url (url &optional dummy)
 107   "Compose a message from URL (RFC 2368).
 108 The optional second argument, DUMMY, exists to match the interface
 109 provided by `browse-url-mail' (w3) -- DUMMY does not do anything."
 110   (interactive "sURL: ")
 111   (if (string-match rfc2368-mailto-regexp url)
 112       (let* ((other-headers (rfc2368-parse-mailto-url url))
 113              (to (cdr (assoc-ignore-case "to" other-headers)))
 114              (subject (cdr (assoc-ignore-case "subject" other-headers))))
 115
 116         (wl-user-agent-compose to subject other-headers))
 117     (message "Not a mailto: url.")))
 118
 119 ;; prepare a message from a mailto: url at point
 120 (defun wl-mailto-compose-message-from-mailto-url-at-point ()
 121   "Draft a new message based on URL (RFC 2368) at point."
 122   (interactive)
 123   (let ((url (wl-mailto-url-at-point)))
 124     (if (and url (string-match rfc2368-mailto-regexp url))
 125         (wl-mailto-compose-message-from-mailto-url url)
 126       ;; tell the user that we didn't find a mailto: url at point
 127       (message "No mailto: url detected at point."))))
 128
 129 ;; since this will be used via 'require'...
 130 (provide 'wl-mailto)
 131
 132 ;;; wl-mailto.el ends here