blob: 4a9122c1f57a3292e3b5dd0122ff6856898ef733 [file] [log] [blame]
/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xerces" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache\@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``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 APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation, and was
* originally based on software copyright (c) 1999, International
* Business Machines, Inc., http://www.ibm.com . For more information
* on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
/**
* $Log$
* Revision 1.1 1999/11/09 01:03:46 twl
* Initial revision
*
* Revision 1.2 1999/11/08 20:45:44 rahul
* Swat for adding in Product name and CVS comment log variable.
*
*/
// ---------------------------------------------------------------------------
// Includes
// ---------------------------------------------------------------------------
#include <util/RuntimeException.hpp>
#include <validators/DTD/SimpleContentModel.hpp>
// ---------------------------------------------------------------------------
// SimpleContentModel: Implementation of the ContentModel virtual interface
// ---------------------------------------------------------------------------
//
// For this content model, the only way it can be ambiguous is if it is a
// choice and both sides are the same.
//
bool SimpleContentModel::getIsAmbiguous() const
{
if (fOp != ContentSpecNode::Choice)
return false;
return fFirstChild == fSecondChild;
}
//
// This method is called to validate our content. For this one, its just a
// pretty simple 'bull your way through it' test according to what kind of
// operation it is for.
//
int
SimpleContentModel::validateContent(const unsigned int* childIds
, const unsigned int childCount) const
{
//
// According to the type of operation, we do the correct type of
// content check.
//
unsigned int index;
switch(fOp)
{
case ContentSpecNode::Leaf :
//
// There can only be one child and it has to be of the
// element type we stored.
//
if (!childCount)
return 0;
if (childIds[0] != fFirstChild)
return 0;
if (childCount > 1)
return 1;
break;
case ContentSpecNode::ZeroOrOne :
//
// If the child count is greater than one, then obviously
// bad. Otherwise, if its one, then the one child must be
// of the type we stored.
//
if ((childCount == 1) && (childIds[0] != fFirstChild))
return 0;
if (childCount > 1)
return 1;
break;
case ContentSpecNode::ZeroOrMore :
//
// If the child count is zero, that's fine. If its more than
// zero, then make sure that all children are of the element
// type that we stored.
//
if (childCount > 0)
{
for (index = 0; index < childCount; index++)
{
if (childIds[index] != fFirstChild)
return index;
}
}
break;
case ContentSpecNode::OneOrMore :
//
// If the child count is zero, that's an error. If its more
// than zero, then make sure that all children are of the
// element type that we stored.
//
if (childCount == 0)
return 0;
for (index = 0; index < childCount; index++)
{
if (childIds[index] != fFirstChild)
return index;
}
break;
case ContentSpecNode::Choice :
//
// There can only be one child, and it must be one of the
// two types we stored.
//
if (!childCount)
return 0;
if ((childIds[0] != fFirstChild) && (childIds[0] != fSecondChild))
return 0;
if (childCount > 1)
return 1;
break;
case ContentSpecNode::Sequence :
//
// There must be two children and they must be the two values
// we stored, in the stored order.
//
if (!childCount)
return 0;
if ((childCount >= 1) && (childIds[0] != fFirstChild))
return 0;
if ((childCount >=2) && (childIds[1] != fSecondChild))
return 1;
if (childCount > 2)
return 2;
break;
default :
ThrowXML(RuntimeException, XML4CExcepts::CM_UnknownCMSpecType);
break;
}
return -1;
}