1 ;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10 -*-
2 ;;;; *************************************************************************
3 ;;;; FILE IDENTIFICATION
5 ;;;; Name: web-utils.lisp
6 ;;;; Purpose: Basic web utility functions
7 ;;;; Programmer: Kevin M. Rosenberg
8 ;;;; Date Started: Apr 2000
10 ;;;; $Id: web-utils.lisp,v 1.11 2003/06/12 02:38:39 kevin Exp $
12 ;;;; This file, part of KMRCL, is Copyright (c) 2002 by Kevin M. Rosenberg
14 ;;;; KMRCL users are granted the rights to distribute and use this software
15 ;;;; as governed by the terms of the Lisp Lesser GNU Public License
16 ;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
17 ;;;; *************************************************************************
22 ;;; HTML/XML constants
24 (defvar *standard-xml-header*
25 #.(format nil "<?xml version=\"1.0\" encoding=\"iso-8859-1\" standalone=\"yes\"?>~%<?xml-stylesheet type=\"text/css\" href=\"http://b9.com/umlsxml.css\" ?>~%~%"))
27 (defvar *standard-html-header* "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML//EN\">")
29 (defvar *standard-xhtml-header*
30 #.(format nil "<?xml version=\"1.0\" encoding=\"iso-8859-1\" standalone=\"yes\"?>~%<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\" \"http://www.w3c.org/TR/xhtml11/DTD/xhtml11\">"))
33 ;;; User agent functions
35 (defun user-agent-ie-p (agent)
36 "Takes a user-agent string and returns T for Internet Explorer."
37 (or (string-starts-with "Microsoft" agent)
38 (string-starts-with "Internet Explore" agent)
39 (search "MSIE" agent)))
43 (defvar *base-url* "")
44 (defun base-url! (url)
45 (setq *base-url* url))
47 (defun make-url (page-name &key (base-dir *base-url*) (format :html) (vars nil))
48 (let ((amp (case format
56 (let ((first-var (first vars)))
58 "?" (car first-var) "=" (cadr first-var)
61 (when (and (car var) (cadr var))
63 amp (car var) "=" (cadr var))))
67 (defun make-url-new (page-name &key (base-dir *base-url*) (format :html)
69 (let ((amp (ecase format
71 ((:xml :ie-xml) "&"))))
75 (let ((first-var (first vars)))
77 "?" (car first-var) "=" (cadr first-var)
80 (when (and (car var) (cadr var))
82 amp (car var) "=" (cadr var))))