mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-29 11:02:01 +00:00
141 lines
4.3 KiB
EmacsLisp
141 lines
4.3 KiB
EmacsLisp
;;; rfc2368.el --- support for rfc2368
|
|
|
|
;; Copyright (C) 1998, 2000, 2001, 2002, 2003, 2004,
|
|
;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
|
|
|
|
;; Author: Sen Nagata <sen@eccosys.com>
|
|
;; Keywords: mail
|
|
|
|
;; 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:
|
|
;;
|
|
;; notes:
|
|
;;
|
|
;; -repeat after me: "the colon is not part of the header name..."
|
|
;; -if w3 becomes part of emacs, then it may make sense to have this
|
|
;; file depend on w3 -- the maintainer of w3 says merging w/ Emacs
|
|
;; is planned!
|
|
;;
|
|
;; historical note:
|
|
;;
|
|
;; this is intended as a replacement for mailto.el
|
|
;;
|
|
;; acknowledgements:
|
|
;;
|
|
;; the functions that deal w/ unhexifying in this file were basically
|
|
;; taken from w3 -- i hope to replace them w/ something else soon OR
|
|
;; perhaps if w3 becomes a part of emacs soon, use the functions from w3.
|
|
|
|
;;; History:
|
|
;;
|
|
;; 0.3:
|
|
;;
|
|
;; added the constant rfc2368-version
|
|
;; implemented first potential fix for a bug in rfc2368-mailto-regexp
|
|
;; implemented first potential fix for a bug in rfc2368-parse-mailto
|
|
;; (both bugs reported by Kenichi OKADA)
|
|
;;
|
|
;; 0.2:
|
|
;;
|
|
;; started to use checkdoc
|
|
;;
|
|
;; 0.1:
|
|
;;
|
|
;; initial implementation
|
|
|
|
;;; Code:
|
|
|
|
;; only an approximation?
|
|
;; see rfc 1738
|
|
(defconst rfc2368-mailto-regexp
|
|
"^\\(mailto:\\)\\([^?]+\\)*\\(\\?\\(.*\\)\\)*"
|
|
"Regular expression to match and aid in parsing a mailto url.")
|
|
|
|
;; describes 'mailto:'
|
|
(defconst rfc2368-mailto-scheme-index 1
|
|
"Describes the 'mailto:' portion of the url.")
|
|
;; i'm going to call this part the 'prequery'
|
|
(defconst rfc2368-mailto-prequery-index 2
|
|
"Describes the portion of the url between 'mailto:' and '?'.")
|
|
;; i'm going to call this part the 'query'
|
|
(defconst rfc2368-mailto-query-index 4
|
|
"Describes the portion of the url after '?'.")
|
|
|
|
(defun rfc2368-unhexify-string (string)
|
|
"Unhexify STRING -- e.g. 'hello%20there' -> 'hello there'."
|
|
(replace-regexp-in-string "%[[:xdigit:]]\\{2\\}"
|
|
(lambda (match)
|
|
(string (string-to-number (substring match 1)
|
|
16)))
|
|
string t t))
|
|
|
|
(defun rfc2368-parse-mailto-url (mailto-url)
|
|
"Parse MAILTO-URL, and return an alist of header-name, header-value pairs.
|
|
MAILTO-URL should be a RFC 2368 (mailto) compliant url. A cons cell w/ a
|
|
key of 'Body' is a special case and is considered a header for this purpose.
|
|
The returned alist is intended for use w/ the `compose-mail' interface.
|
|
Note: make sure MAILTO-URL has been 'unhtmlized' (e.g. & -> &), before
|
|
calling this function."
|
|
(let ((case-fold-search t)
|
|
prequery query headers-alist)
|
|
|
|
(if (string-match rfc2368-mailto-regexp mailto-url)
|
|
(progn
|
|
|
|
(setq prequery
|
|
(match-string rfc2368-mailto-prequery-index mailto-url))
|
|
|
|
(setq query
|
|
(match-string rfc2368-mailto-query-index mailto-url))
|
|
|
|
;; build alist of header name-value pairs
|
|
(if (not (null query))
|
|
(setq headers-alist
|
|
(mapcar
|
|
(lambda (x)
|
|
(let* ((temp-list (split-string x "="))
|
|
(header-name (car temp-list))
|
|
(header-value (cadr temp-list)))
|
|
;; return ("Header-Name" . "header-value")
|
|
(cons
|
|
(capitalize (rfc2368-unhexify-string header-name))
|
|
(rfc2368-unhexify-string header-value))))
|
|
(split-string query "&"))))
|
|
|
|
;; deal w/ multiple 'To' recipients
|
|
(if prequery
|
|
(progn
|
|
(setq prequery (rfc2368-unhexify-string prequery))
|
|
(if (assoc "To" headers-alist)
|
|
(let* ((our-cons-cell
|
|
(assoc "To" headers-alist))
|
|
(our-cdr
|
|
(cdr our-cons-cell)))
|
|
(setcdr our-cons-cell (concat prequery ", " our-cdr)))
|
|
(setq headers-alist
|
|
(cons (cons "To" prequery) headers-alist)))))
|
|
|
|
headers-alist)
|
|
|
|
(error "Failed to match a mailto: url"))
|
|
))
|
|
|
|
(provide 'rfc2368)
|
|
|
|
;; arch-tag: ea804934-ad96-4f69-957b-857a76e4fd95
|
|
;;; rfc2368.el ends here
|