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Diffstat (limited to 'src/com/sun/org/apache/xerces/internal/impl/dtd/models/SimpleContentModel.java')
| -rw-r--r-- | src/com/sun/org/apache/xerces/internal/impl/dtd/models/SimpleContentModel.java | 320 |
1 files changed, 0 insertions, 320 deletions
diff --git a/src/com/sun/org/apache/xerces/internal/impl/dtd/models/SimpleContentModel.java b/src/com/sun/org/apache/xerces/internal/impl/dtd/models/SimpleContentModel.java deleted file mode 100644 index 73ae37d..0000000 --- a/src/com/sun/org/apache/xerces/internal/impl/dtd/models/SimpleContentModel.java +++ /dev/null @@ -1,320 +0,0 @@ -/* - * reserved comment block - * DO NOT REMOVE OR ALTER! - */ -/* - * The Apache Software License, Version 1.1 - * - * - * Copyright (c) 1999-2002 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.apache.org. For more - * information on the Apache Software Foundation, please see - * <http://www.apache.org/>. - */ - -package com.sun.org.apache.xerces.internal.impl.dtd.models; - -import com.sun.org.apache.xerces.internal.xni.QName; - -import com.sun.org.apache.xerces.internal.impl.dtd.XMLContentSpec; - -/** - * SimpleContentModel is a derivative of the abstract content model base - * class that handles a small set of simple content models that are just - * way overkill to give the DFA treatment. - * <p> - * This class handles the following scenarios: - * <ul> - * <li> a - * <li> a? - * <li> a* - * <li> a+ - * <li> a,b - * <li> a|b - * </ul> - * <p> - * These all involve a unary operation with one element type, or a binary - * operation with two elements. These are very simple and can be checked - * in a simple way without a DFA and without the overhead of setting up a - * DFA for such a simple check. - * - * @xerces.internal - * - */ -public class SimpleContentModel - implements ContentModelValidator { - - // - // Constants - // - - /** CHOICE */ - public static final short CHOICE = -1; - - /** SEQUENCE */ - public static final short SEQUENCE = -1; - - // - // Data - // - - - /** - * The element decl pool indices of the first (and optional second) - * child node. The operation code tells us whether the second child - * is used or not. - */ - private QName fFirstChild = new QName(); - - /** - * The element decl pool indices of the first (and optional second) - * child node. The operation code tells us whether the second child - * is used or not. - */ - private QName fSecondChild = new QName(); - - /** - * The operation that this object represents. Since this class only - * does simple contents, there is only ever a single operation - * involved (i.e. the children of the operation are always one or - * two leafs.) This is one of the XMLDTDParams.CONTENTSPECNODE_XXX values. - */ - private int fOperator; - - /* this is the EquivClassComparator object */ - //private EquivClassComparator comparator = null; - - - // - // Constructors - // - - /** - * Constructs a simple content model. - * - * @param operator The content model operator. - * @param firstChild qualified name of the first child - * @param secondChild qualified name of the second child - * - */ - public SimpleContentModel(short operator, QName firstChild, QName secondChild) { - // - // Store away the children and operation. This is all we need to - // do the content model check. - // - // The operation is one of the ContentSpecNode.NODE_XXX values! - // - fFirstChild.setValues(firstChild); - if (secondChild != null) { - fSecondChild.setValues(secondChild); - } - else { - fSecondChild.clear(); - } - fOperator = operator; - } - - // - // ContentModelValidator methods - // - - /** - * Check that the specified content is valid according to this - * content model. This method can also be called to do 'what if' - * testing of content models just to see if they would be valid. - * <p> - * A value of -1 in the children array indicates a PCDATA node. All other - * indexes will be positive and represent child elements. The count can be - * zero, since some elements have the EMPTY content model and that must be - * confirmed. - * - * @param children The children of this element. Each integer is an index within - * the <code>StringPool</code> of the child element name. An index - * of -1 is used to indicate an occurrence of non-whitespace character - * data. - * @param offset Offset into the array where the children starts. - * @param length The number of entries in the <code>children</code> array. - * - * @return The value -1 if fully valid, else the 0 based index of the child - * that first failed. If the value returned is equal to the number - * of children, then the specified children are valid but additional - * content is required to reach a valid ending state. - * - */ - public int validate(QName[] children, int offset, int length) { - - // - // According to the type of operation, we do the correct type of - // content check. - // - switch(fOperator) - { - case XMLContentSpec.CONTENTSPECNODE_LEAF : - // If there is not a child, then report an error at index 0 - if (length == 0) - return 0; - - // If the 0th child is not the right kind, report an error at 0 - if (children[offset].rawname != fFirstChild.rawname) { - return 0; - } - - // If more than one child, report an error at index 1 - if (length > 1) - return 1; - break; - - case XMLContentSpec.CONTENTSPECNODE_ZERO_OR_ONE : - // - // If there is one child, make sure its the right type. If not, - // then its an error at index 0. - // - if (length == 1) { - if (children[offset].rawname != fFirstChild.rawname) { - return 0; - } - } - - // - // If the child count is greater than one, then obviously - // bad, so report an error at index 1. - // - if (length > 1) - return 1; - break; - - case XMLContentSpec.CONTENTSPECNODE_ZERO_OR_MORE : - // - // 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 not, report the index of the first - // failed one. - // - if (length > 0) - { - for (int index = 0; index < length; index++) { - if (children[offset + index].rawname != fFirstChild.rawname) { - return index; - } - } - } - break; - - case XMLContentSpec.CONTENTSPECNODE_ONE_OR_MORE : - // - // If the child count is zero, that's an error so report - // an error at index 0. - // - if (length == 0) - return 0; - - // - // Otherwise we have to check them all to make sure that they - // are of the correct child type. If not, then report the index - // of the first one that is not. - // - for (int index = 0; index < length; index++) { - if (children[offset + index].rawname != fFirstChild.rawname) { - return index; - } - } - break; - - case XMLContentSpec.CONTENTSPECNODE_CHOICE : - // - // There must be one and only one child, so if the element count - // is zero, return an error at index 0. - // - if (length == 0) - return 0; - - // If the zeroth element isn't one of our choices, error at 0 - if ((children[offset].rawname != fFirstChild.rawname) && - (children[offset].rawname != fSecondChild.rawname)) { - return 0; - } - - // If there is more than one element, then an error at 1 - if (length > 1) - return 1; - break; - - case XMLContentSpec.CONTENTSPECNODE_SEQ : - // - // There must be two children and they must be the two values - // we stored, in the stored order. - // - if (length == 2) { - if (children[offset].rawname != fFirstChild.rawname) { - return 0; - } - if (children[offset + 1].rawname != fSecondChild.rawname) { - return 1; - } - } - else { - if (length > 2) { - return 2; - } - - return length; - } - - break; - - default : - throw new RuntimeException("ImplementationMessages.VAL_CST"); - } - - // We survived, so return success status - return -1; - } // validate - -} // class SimpleContentModel |