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|
;;; url-parse.el --- Uniform Resource Locator parser
;; Author: wmperry
;; Created: 1999/06/28 01:46:57
;; Version: 1.2
;; 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.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defmacro url-type (urlobj)
(` (aref (, urlobj) 0)))
(defmacro url-user (urlobj)
(` (aref (, urlobj) 1)))
(defmacro url-password (urlobj)
(` (aref (, urlobj) 2)))
(defmacro url-host (urlobj)
(` (aref (, urlobj) 3)))
(defmacro url-port (urlobj)
(` (or (aref (, urlobj) 4)
(if (url-fullness (, urlobj))
(cdr-safe (assoc (url-type (, urlobj)) url-default-ports))))))
(defmacro url-filename (urlobj)
(` (aref (, urlobj) 5)))
(defmacro url-target (urlobj)
(` (aref (, urlobj) 6)))
(defmacro url-attributes (urlobj)
(` (aref (, urlobj) 7)))
(defmacro url-fullness (urlobj)
(` (aref (, urlobj) 8)))
(defmacro url-set-type (urlobj type)
(` (aset (, urlobj) 0 (, type))))
(defmacro url-set-user (urlobj user)
(` (aset (, urlobj) 1 (, user))))
(defmacro url-set-password (urlobj pass)
(` (aset (, urlobj) 2 (, pass))))
(defmacro url-set-host (urlobj host)
(` (aset (, urlobj) 3 (, host))))
(defmacro url-set-port (urlobj port)
(` (aset (, urlobj) 4 (, port))))
(defmacro url-set-filename (urlobj file)
(` (aset (, urlobj) 5 (, file))))
(defmacro url-set-target (urlobj targ)
(` (aset (, urlobj) 6 (, targ))))
(defmacro url-set-attributes (urlobj targ)
(` (aset (, urlobj) 7 (, targ))))
(defmacro url-set-full (urlobj val)
(` (aset (, urlobj) 8 (, val))))
(defun url-recreate-url (urlobj)
(concat (url-type urlobj) ":" (if (url-host urlobj) "//" "")
(if (url-user urlobj)
(concat (url-user urlobj)
(if (url-password urlobj)
(concat ":" (url-password urlobj)))
"@"))
(url-host urlobj)
(if (and (url-port urlobj)
(not (equal (url-port urlobj)
(cdr-safe (assoc (url-type urlobj)
url-default-ports)))))
(concat ":" (url-port urlobj)))
(or (url-filename urlobj) "/")
(if (url-target urlobj)
(concat "#" (url-target urlobj)))
(if (url-attributes urlobj)
(concat ";"
(mapconcat
(function
(lambda (x)
(if (cdr x)
(concat (car x) "=" (cdr x))
(car x)))) (url-attributes urlobj) ";")))))
(defun url-generic-parse-url (url)
"Return a vector of the parts of URL.
Format is:
\[proto username password hostname portnumber file reference attributes fullp\]"
(cond
((null url)
(make-vector 9 nil))
((or (not (string-match url-nonrelative-link url))
(= ?/ (string-to-char url)))
(let ((retval (make-vector 9 nil)))
(url-set-filename retval url)
(url-set-full retval nil)
retval))
(t
(save-excursion
(set-buffer (get-buffer-create " *urlparse*"))
(set-syntax-table url-mailserver-syntax-table)
(let ((save-pos nil)
(prot nil)
(user nil)
(pass nil)
(host nil)
(port nil)
(file nil)
(refs nil)
(attr nil)
(full nil)
(inhibit-read-only t))
(erase-buffer)
(insert url)
(goto-char (point-min))
(setq save-pos (point))
(if (not (looking-at "//"))
(progn
(skip-chars-forward "a-zA-Z+.\\-")
(downcase-region save-pos (point))
(setq prot (buffer-substring save-pos (point)))
(skip-chars-forward ":")
(setq save-pos (point))))
;; We are doing a fully specified URL, with hostname and all
(if (looking-at "//")
(progn
(setq full t)
(forward-char 2)
(setq save-pos (point))
(skip-chars-forward "^/")
(setq host (buffer-substring save-pos (point)))
(if (string-match "^\\([^@]+\\)@" host)
(setq user (url-match host 1)
host (substring host (match-end 0) nil)))
(if (and user (string-match "\\([^:]+\\):\\(.*\\)" user))
(setq pass (url-match user 2)
user (url-match user 1)))
(if (string-match ":\\([0-9+]+\\)" host)
(setq port (url-match host 1)
host (substring host 0 (match-beginning 0))))
(if (string-match ":$" host)
(setq host (substring host 0 (match-beginning 0))))
(setq host (downcase host)
save-pos (point))))
;; Gross hack to preserve ';' in data URLs
(setq save-pos (point))
(if (string= "data" prot)
(goto-char (point-max))
;; Now check for references
(skip-chars-forward "^#")
(if (eobp)
nil
(delete-region
(point)
(progn
(skip-chars-forward "#")
(setq refs (buffer-substring (point) (point-max)))
(point-max))))
(goto-char save-pos)
(skip-chars-forward "^;")
(if (not (eobp))
(setq attr (mm-parse-args (point) (point-max))
attr (nreverse attr))))
(setq file (buffer-substring save-pos (point)))
(and port (string= port (or (cdr-safe (assoc prot url-default-ports))
""))
(setq port nil))
(if (and host (string-match "%[0-9][0-9]" host))
(setq host (url-unhex-string host)))
(vector prot user pass host port file refs attr full))))))
(provide 'url-parse)
|
