;;; -*- Mode: LISP; Syntax: COMMON-LISP; Package: CL-USER; Base: 10 -*-
;;; $Header: /usr/local/cvsrep/url-rewrite/specials.lisp,v 1.8 2006/01/03 18:40:23 edi Exp $

;;; Copyright (c) 2004-2006, Dr. Edmund Weitz.  All rights reserved.

;;; Redistribution and use in source and binary forms, with or without
;;; modification, are permitted provided that the following conditions
;;; are met:

;;;   * Redistributions of source code must retain the above copyright
;;;     notice, this list of conditions and the following disclaimer.

;;;   * Redistributions in binary form must reproduce the above
;;;     copyright notice, this list of conditions and the following
;;;     disclaimer in the documentation and/or other materials
;;;     provided with the distribution.

;;; THIS SOFTWARE IS PROVIDED BY THE AUTHOR 'AS IS' AND ANY EXPRESSED
;;; OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
;;; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
;;; ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
;;; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
;;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
;;; GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
;;; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
;;; WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
;;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
;;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

(in-package #:url-rewrite)

(defparameter *url-rewrite-base-directory*
  (make-pathname :name nil :type nil :version nil
                 :defaults (parse-namestring *load-truename*)))

(defvar *url-rewrite-tags*
  '(("a" . "href")
    ("area" . "href")
    ("frame" . "src")
    ("img" . "src")
    ("input" . "src")
    ("form" . "action")
    ("iframe" . "src"))
  "The tag/attribute combinations where URL-rewriting should happen.")

(defvar *url-rewrite-fill-tags*
  '(("form" . "action"))
  "The tag/attribute combinations where URL-rewriting should
optionally add an attribute.")

(defvar *find-string-hash*
  (make-hash-table :test #'equal)
  "Hash tables used internally by READ-UNTIL to cache offset arrays.")

;; stuff for Nikodemus Siivola's HYPERDOC
;; see <http://common-lisp.net/project/hyperdoc/>
;; and <http://www.cliki.net/hyperdoc>

(defvar *hyperdoc-base-uri* "http://weitz.de/url-rewrite/")

(let ((exported-symbols-alist
       (loop for symbol being the external-symbols of :url-rewrite
             collect (cons symbol
                           (concatenate 'string
                                        "#"
                                        (string-downcase symbol))))))
  (defun hyperdoc-lookup (symbol type)
    (declare (ignore type))
    (cdr (assoc symbol
                exported-symbols-alist
                :test #'eq))))