1 ;;; url-parse.el --- Uniform Resource Locator parser
3 ;; Copyright (C) 1996, 1997, 1998, 1999, 2004,
4 ;; 2005, 2006, 2007 Free Software Foundation, Inc.
6 ;; Keywords: comm, data, processes
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 3, or (at your option)
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
23 ;; Boston, MA 02110-1301, USA.
30 (eval-when-compile (require 'cl))
32 (autoload 'url-scheme-get-property "url-methods")
36 (:constructor url-parse-make-urlobj
37 (&optional type user password host portspec filename
38 target attributes fullness))
40 type user password host portspec filename target attributes fullness)
42 (defsubst url-port (urlobj)
43 (or (url-portspec urlobj)
44 (if (url-fullness urlobj)
45 (url-scheme-get-property (url-type urlobj) 'default-port))))
47 (defsetf url-port (urlobj) (port) `(setf (url-portspec ,urlobj) ,port))
50 (defun url-recreate-url (urlobj)
51 "Recreate a URL string from the parsed URLOBJ."
52 (concat (url-type urlobj) ":" (if (url-host urlobj) "//" "")
54 (concat (url-user urlobj)
55 (if (url-password urlobj)
56 (concat ":" (url-password urlobj)))
59 (if (and (url-port urlobj)
60 (not (equal (url-port urlobj)
61 (url-scheme-get-property (url-type urlobj) 'default-port))))
62 (format ":%d" (url-port urlobj)))
63 (or (url-filename urlobj) "/")
64 (url-recreate-url-attributes urlobj)
65 (if (url-target urlobj)
66 (concat "#" (url-target urlobj)))))
68 (defun url-recreate-url-attributes (urlobj)
69 "Recreate the attributes of an URL string from the parsed URLOBJ."
70 (when (url-attributes urlobj)
72 (mapconcat (lambda (x)
74 (concat (car x) "=" (cdr x))
76 (url-attributes urlobj) ";"))))
79 (defun url-generic-parse-url (url)
80 "Return a vector of the parts of URL.
82 \[TYPE USER PASSWORD HOST PORT FILE TARGET ATTRIBUTES FULL\]"
86 (url-parse-make-urlobj))
87 ((or (not (string-match url-nonrelative-link url))
88 (= ?/ (string-to-char url)))
89 ;; This isn't correct, as a relative URL can be a fragment link
90 ;; (e.g. "#foo") and many other things (see section 4.2).
91 ;; However, let's not fix something that isn't broken, especially
92 ;; when close to a release.
93 (url-parse-make-urlobj nil nil nil nil nil url))
96 (set-syntax-table url-parse-syntax-table)
107 (inhibit-read-only t))
110 (goto-char (point-min))
111 (setq save-pos (point))
114 (if (not (looking-at "//"))
116 (skip-chars-forward "a-zA-Z+.\\-")
117 (downcase-region save-pos (point))
118 (setq prot (buffer-substring save-pos (point)))
119 (skip-chars-forward ":")
120 (setq save-pos (point))))
123 (if (looking-at "//")
127 (setq save-pos (point))
128 (skip-chars-forward "^/")
129 (setq host (buffer-substring save-pos (point)))
130 (if (string-match "^\\([^@]+\\)@" host)
131 (setq user (match-string 1 host)
132 host (substring host (match-end 0) nil)))
133 (if (and user (string-match "\\([^:]+\\):\\(.*\\)" user))
134 (setq pass (match-string 2 user)
135 user (match-string 1 user)))
136 ;; This gives wrong results for IPv6 literal addresses.
137 (if (string-match ":\\([0-9+]+\\)" host)
138 (setq port (string-to-number (match-string 1 host))
139 host (substring host 0 (match-beginning 0))))
140 (if (string-match ":$" host)
141 (setq host (substring host 0 (match-beginning 0))))
142 (setq host (downcase host)
146 (setq port (url-scheme-get-property prot 'default-port)))
149 ;; Gross hack to preserve ';' in data URLs
150 (setq save-pos (point))
153 (if (string= "data" prot)
154 (goto-char (point-max))
155 ;; Now check for references
156 (skip-chars-forward "^#")
162 (skip-chars-forward "#")
163 (setq refs (buffer-substring (point) (point-max)))
166 (skip-chars-forward "^;")
168 (setq attr (url-parse-args (buffer-substring (point) (point-max)) t)
169 attr (nreverse attr))))
171 (setq file (buffer-substring save-pos (point)))
172 (if (and host (string-match "%[0-9][0-9]" host))
173 (setq host (url-unhex-string host)))
174 (url-parse-make-urlobj
175 prot user pass host port file refs attr full))))))
179 ;; arch-tag: f338325f-71ab-4bee-93cc-78fb9a03d403
180 ;;; url-parse.el ends here