text.lisp

   1 ;;; -*- show-trailing-whitespace: t; indent-tabs: nil -*-
   2
   3 ;;; Copyright (c) 2007 David Lichteblau. All rights reserved.
   4
   5 ;;; Redistribution and use in source and binary forms, with or without
   6 ;;; modification, are permitted provided that the following conditions
   7 ;;; are met:
   8 ;;;
   9 ;;;   * Redistributions of source code must retain the above copyright
  10 ;;;     notice, this list of conditions and the following disclaimer.
  11 ;;;
  12 ;;;   * Redistributions in binary form must reproduce the above
  13 ;;;     copyright notice, this list of conditions and the following
  14 ;;;     disclaimer in the documentation and/or other materials
  15 ;;;     provided with the distribution.
  16 ;;;
  17 ;;; THIS SOFTWARE IS PROVIDED BY THE AUTHOR 'AS IS' AND ANY EXPRESSED
  18 ;;; OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19 ;;; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20 ;;; ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  21 ;;; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22 ;;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  23 ;;; GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24 ;;; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  25 ;;; WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26 ;;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27 ;;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28
  29 (in-package :cxml-stp-impl)
  30
  31 #+sbcl
  32 (declaim (optimize (debug 2)))
  33
  34
  35 ;;;; Class TEXT
  36
  37 (defun make-text (data)
  38   "@arg[data]{a string containing XML characters only}
  39    @return{an @class{text}}
  40    @short{This function creates a text node.}"
  41   (let ((result (make-instance 'text)))
  42     (setf (data result) data)
  43     result))
  44
  45 (defmethod copy ((node text))
  46   (make-instance 'text :data (data node)))
  47
  48 (defmethod string-value ((node text))
  49   (data node))
  50
  51 (defmethod (setf data) :around (newval (node text))
  52   (unless newval (setf newval ""))
  53   (unless (xml-characters-p newval)
  54     (stp-error "text includes characters that cannot be ~
  55                 represented in XML at all: ~S"
  56                newval))
  57   (call-next-method newval node))
  58
  59 (defmethod serialize ((node text) handler)
  60   (sax:characters handler (data node)))
  61
  62
  63 ;;; printing
  64
  65 (defmethod slots-for-print-object append ((node text))
  66   '((:data data)))
  67
  68 (defreader text (data)
  69   (setf (data this) data))