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;;; -*- Mode: LISP; Syntax: COMMON-LISP; Package:CL-WHO; Base: 10 -*-
;;; $Header: /usr/local/cvsrep/cl-who/specials.lisp,v 1.2 2007/08/24 08:01:37 edi Exp $
;;; Copyright (c) 2003-2007, 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 :cl-who)
#+:sbcl
(defmacro defconstant (name value &optional doc)
"Make sure VALUE is evaluated only once \(to appease SBCL)."
`(cl:defconstant ,name (if (boundp ',name) (symbol-value ',name) ,value)
,@(when doc (list doc))))
(defvar *prologue*
"<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">"
"This is the first line that'll be printed if the :PROLOGUE keyword
argument is T")
(defparameter *escape-char-p*
#'(lambda (char)
(or (find char "<>&'\"")
(> (char-code char) 127)))
"Used by ESCAPE-STRING to test whether a character should be escaped.")
(defparameter *indent* nil
"Whether to insert line breaks and indent. Also controls amount of
indentation dynamically.")
(defvar *html-mode* :xml
":SGML for \(SGML-)HTML, :XML \(default) for XHTML.")
(defvar *downcase-tokens-p* t
"If NIL, a keyword symbol representing a tag or attribute name will
not be automatically converted to lowercase. This is useful when one
needs to output case sensitive XML.")
(defparameter *attribute-quote-char* #\'
"Quote character for attributes.")
(defparameter *empty-tag-end* " />"
"End of an empty tag. Default is XML style.")
(defparameter *html-empty-tags*
'(:area
:atop
:audioscope
:base
:basefont
:br
:choose
:col
:frame
:hr
:img
:input
:isindex
:keygen
:left
:limittext
:link
:meta
:nextid
:of
:over
:param
:range
:right
:spacer
:spot
:tab
:wbr)
"The list of HTML tags that should be output as empty tags.
See *HTML-EMPTY-TAG-AWARE-P*.")
(defvar *html-empty-tag-aware-p* T
"Set this to NIL to if you want to use CL-WHO as a strict XML
generator. Otherwise, CL-WHO will only write empty tags listed
in *HTML-EMPTY-TAGS* as <tag/> \(XHTML mode) or <tag> \(SGML
mode). For all other tags, it will always generate
<tag></tag>.")
(defconstant +newline+ (make-string 1 :initial-element #\Newline)
"Used for indentation.")
(defconstant +spaces+ (make-string 2000
:initial-element #\Space
:element-type 'base-char)
"Used for indentation.")
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