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 1.9 2002/10/18 05:14:49 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 ;;;; *************************************************************************
20 (declaim (optimize (speed 3) (safety 1) (compilation-speed 0) (debug 3)))
23 ;;; HTML/XML constants
25 (defvar *standard-xml-header*
26 #.(format nil "<?xml version=\"1.0\" ?>~%<?xml-stylesheet type=\"text/css\" href=\"http://b9.com/umlsxml.css\" ?>~%~%"))
28 (defvar *standard-html-header* "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML//EN\">")
30 (defvar *standard-xhtml-header*
31 #.(format nil "<?xml version=\"1.0\" standalone=\"yes\"?>~%<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3c.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">"))
34 ;;; User agent functions
36 (defun user-agent-ie-p (agent)
37 "Takes a user-agent string and returns T for Internet Explorer."
38 (when (or (string-equal "Microsoft" (subseq agent 0 (length "Microsoft")))
39 (string-equal "Internet Explore" (subseq agent 0 (length "Internet Explore")))
40 (search "MSIE" agent))
45 (defvar *base-url* "")
46 (defun base-url! (url)
47 (setq *base-url* url))
49 (defun make-url (page-name &key (base-dir *base-url*) (format :html) (vars nil))
50 (let ((amp (case format
58 (let ((first-var (first vars)))
60 "?" (car first-var) "=" (cadr first-var)
63 (when (and (car var) (cadr var))
65 amp (car var) "=" (cadr var))))