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Tag: v3.94
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;;; url-misc.el --- Misc Uniform Resource Locator retrieval code
;; Copyright (C) 1996-1999, 2002, 2004-2013 Free Software Foundation,
;; Inc.
;; Keywords: comm, data, processes
;; 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/>.
;;; Code:
(require 'url-vars)
(require 'url-parse)
(autoload 'Info-goto-node "info" "" t)
(autoload 'man "man" nil t)
;;;###autoload
(defun url-man (url)
"Fetch a Unix manual page URL."
(man (url-filename url))
nil)
;;;###autoload
(defun url-info (url)
"Fetch a GNU Info URL."
;; Fetch an info node
(let* ((fname (url-filename url))
(node (url-unhex-string (or (url-target url) "Top"))))
(if (and fname node)
(Info-goto-node (concat "(" fname ")" node))
(error "Malformed url: %s" (url-recreate-url url)))
nil))
(defun url-do-terminal-emulator (type server port user)
(terminal-emulator
(generate-new-buffer (format "%s%s" (if user (concat user "@") "") server))
(pcase type
(`rlogin "rlogin")
(`telnet "telnet")
(`tn3270 "tn3270")
(_
(error "Unknown terminal emulator required: %s" type)))
(pcase type
(`rlogin
(if user
(list server "-l" user)
(list server)))
(`telnet
(if user (message "Please log in as user: %s" user))
(if port
(list server port)
(list server)))
(`tn3270
(if user (message "Please log in as user: %s" user))
(list server)))))
;;;###autoload
(defun url-generic-emulator-loader (url)
(let* ((type (intern (downcase (url-type url))))
(server (url-host url))
(name (url-user url))
(port (number-to-string (url-port url))))
(url-do-terminal-emulator type server port name))
nil)
;;;###autoload
(defalias 'url-rlogin 'url-generic-emulator-loader)
;;;###autoload
(defalias 'url-telnet 'url-generic-emulator-loader)
;;;###autoload
(defalias 'url-tn3270 'url-generic-emulator-loader)
;; RFC 2397
;;;###autoload
(defun url-data (url)
"Fetch a data URL (RFC 2397)."
(let ((mediatype nil)
;; The mediatype may need to be hex-encoded too -- see the RFC.
(desc (url-unhex-string (url-filename url)))
(encoding "8bit")
(data nil))
(save-excursion
(if (not (string-match "\\([^,]*\\)?," desc))
(error "Malformed data URL: %s" desc)
(setq mediatype (match-string 1 desc))
(if (and mediatype (string-match ";base64\\'" mediatype))
(setq mediatype (substring mediatype 0 (match-beginning 0))
encoding "base64"))
(if (or (null mediatype)
(eq ?\; (aref mediatype 0)))
(setq mediatype (concat "text/plain" mediatype)))
(setq data (url-unhex-string (substring desc (match-end 0)))))
(set-buffer (generate-new-buffer " *url-data*"))
(mm-disable-multibyte)
(insert (format "Content-Length: %d\n" (length data))
"Content-Type: " mediatype "\n"
"Content-Encoding: " encoding "\n"
"\n")
(if data (insert data))
(current-buffer))))
(provide 'url-misc)
;;; url-misc.el ends here
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