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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.xerces.parsers;

import org.apache.xerces.impl.dtd.DTDGrammar;
import org.apache.xerces.util.SymbolTable;
import org.apache.xerces.xni.Augmentations;
import org.apache.xerces.xni.XMLDTDContentModelHandler;
import org.apache.xerces.xni.XMLDTDHandler;
import org.apache.xerces.xni.XMLLocator;
import org.apache.xerces.xni.XMLResourceIdentifier;
import org.apache.xerces.xni.XMLString;
import org.apache.xerces.xni.XNIException;
import org.apache.xerces.xni.parser.XMLDTDScanner;

/**
 * @version $Id: DTDParser.java 699892 2008-09-28 21:08:27Z mrglavas $
 */
public abstract class DTDParser
    extends XMLGrammarParser
    implements XMLDTDHandler, XMLDTDContentModelHandler {

    //
    // Data
    //

    /** fDTDScanner */
    protected XMLDTDScanner fDTDScanner;

    //
    // Constructors
    //

    /**
     * 
     * 
     * @param symbolTable 
     */
    public DTDParser(SymbolTable symbolTable) {
        super(symbolTable);
    }

    //
    // Methods
    //

    /**
     * getDTDGrammar
     * 
     * @return the grammar created by this parser
     */
    public DTDGrammar getDTDGrammar() {
        return null;
    } // getDTDGrammar

    //
    // XMLDTDHandler methods
    //

    /**
     * This method notifies of the start of an entity. The DTD has the 
     * pseudo-name of "[dtd]" and parameter entity names start with '%'.
     * 

* Note: Since the DTD is an entity, the handler * will be notified of the start of the DTD entity by calling the * startEntity method with the entity name "[dtd]" before calling * the startDTD method. * * @param name The name of the entity. * @param publicId The public identifier of the entity if the entity * is external, null otherwise. * @param systemId The system identifier of the entity if the entity * is external, null otherwise. * @param encoding The auto-detected IANA encoding name of the entity * stream. This value will be null in those situations * where the entity encoding is not auto-detected (e.g. * internal parameter entities). * * @throws XNIException Thrown by handler to signal an error. */ public void startEntity(String name, String publicId, String systemId, String encoding) throws XNIException { } /** * Notifies of the presence of a TextDecl line in an entity. If present, * this method will be called immediately following the startEntity call. *

* Note: This method is only called for external * parameter entities referenced in the DTD. * * @param version The XML version, or null if not specified. * @param encoding The IANA encoding name of the entity. * * @throws XNIException Thrown by handler to signal an error. */ public void textDecl(String version, String encoding) throws XNIException { } /** * The start of the DTD. * * @throws XNIException Thrown by handler to signal an error. */ public void startDTD(XMLLocator locator, Augmentations augmentations) throws XNIException { } /** * A comment. * * @param text The text in the comment. * * @throws XNIException Thrown by application to signal an error. */ public void comment(XMLString text, Augmentations augmentations) throws XNIException { } // comment /** * A processing instruction. Processing instructions consist of a * target name and, optionally, text data. The data is only meaningful * to the application. *

* Typically, a processing instruction's data will contain a series * of pseudo-attributes. These pseudo-attributes follow the form of * element attributes but are not parsed or presented * to the application as anything other than text. The application is * responsible for parsing the data. * * @param target The target. * @param data The data or null if none specified. * * @throws XNIException Thrown by handler to signal an error. */ public void processingInstruction(String target, XMLString data, Augmentations augmentations) throws XNIException { } // processingInstruction /** * The start of the external subset. * * @throws XNIException Thrown by handler to signal an error. */ public void startExternalSubset(XMLResourceIdentifier identifier, Augmentations augmentations) throws XNIException { } // startExternalSubset /** * The end of the external subset. * * @throws XNIException Thrown by handler to signal an error. */ public void endExternalSubset(Augmentations augmentations) throws XNIException { } // endExternalSubset /** * An element declaration. * * @param name The name of the element. * @param contentModel The element content model. * * @throws XNIException Thrown by handler to signal an error. */ public void elementDecl(String name, String contentModel, Augmentations augmentations) throws XNIException { } // elementDecl /** * The start of an attribute list. * * @param elementName The name of the element that this attribute * list is associated with. * * @throws XNIException Thrown by handler to signal an error. */ public void startAttlist(String elementName, Augmentations augmentations) throws XNIException { } // startAttlist /** * An attribute declaration. * * @param elementName The name of the element that this attribute * is associated with. * @param attributeName The name of the attribute. * @param type The attribute type. This value will be one of * the following: "CDATA", "ENTITY", "ENTITIES", * "ENUMERATION", "ID", "IDREF", "IDREFS", * "NMTOKEN", "NMTOKENS", or "NOTATION". * @param enumeration If the type has the value "ENUMERATION", this * array holds the allowed attribute values; * otherwise, this array is null. * @param defaultType The attribute default type. This value will be * one of the following: "#FIXED", "#IMPLIED", * "#REQUIRED", or null. * @param defaultValue The attribute default value, or null if no * default value is specified. * * @throws XNIException Thrown by handler to signal an error. */ public void attributeDecl(String elementName, String attributeName, String type, String[] enumeration, String defaultType, XMLString defaultValue, XMLString nonNormalizedDefaultValue, Augmentations augmentations) throws XNIException { } // attributeDecl /** * The end of an attribute list. * * @throws XNIException Thrown by handler to signal an error. */ public void endAttlist(Augmentations augmentations) throws XNIException { } // endAttlist /** * An internal entity declaration. * * @param name The name of the entity. Parameter entity names start with * '%', whereas the name of a general entity is just the * entity name. * @param text The value of the entity. * @param nonNormalizedText The non-normalized value of the entity. This * value contains the same sequence of characters that was in * the internal entity declaration, without any entity * references expanded. * * @throws XNIException Thrown by handler to signal an error. */ public void internalEntityDecl(String name, XMLString text, XMLString nonNormalizedText, Augmentations augmentations) throws XNIException { } // internalEntityDecl(String,XMLString,XMLString) /** * An external entity declaration. * * @param name The name of the entity. Parameter entity names start * with '%', whereas the name of a general entity is just * the entity name. * @param identifier An object containing all location information * pertinent to this entity. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void externalEntityDecl(String name, XMLResourceIdentifier identifier, Augmentations augmentations) throws XNIException { } // externalEntityDecl /** * An unparsed entity declaration. * * @param name The name of the entity. * @param identifier An object containing all location information * pertinent to this entity. * @param notation The name of the notation. * * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void unparsedEntityDecl(String name, XMLResourceIdentifier identifier, String notation, Augmentations augmentations) throws XNIException { } // unparsedEntityDecl /** * A notation declaration * * @param name The name of the notation. * @param identifier An object containing all location information * pertinent to this notation. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void notationDecl(String name, XMLResourceIdentifier identifier, Augmentations augmentations) throws XNIException { } // notationDecl /** * The start of a conditional section. * * @param type The type of the conditional section. This value will * either be CONDITIONAL_INCLUDE or CONDITIONAL_IGNORE. * * @throws XNIException Thrown by handler to signal an error. * * @see XMLDTDHandler#CONDITIONAL_INCLUDE * @see XMLDTDHandler#CONDITIONAL_IGNORE */ public void startConditional(short type, Augmentations augmentations) throws XNIException { } // startConditional /** * The end of a conditional section. * * @throws XNIException Thrown by handler to signal an error. */ public void endConditional(Augmentations augmentations) throws XNIException { } // endConditional /** * The end of the DTD. * * @throws XNIException Thrown by handler to signal an error. */ public void endDTD(Augmentations augmentations) throws XNIException { } // endDTD /** * This method notifies the end of an entity. The DTD has the pseudo-name * of "[dtd]" and parameter entity names start with '%'. *

* Note: Since the DTD is an entity, the handler * will be notified of the end of the DTD entity by calling the * endEntity method with the entity name "[dtd]" after calling * the endDTD method. * * @param name The name of the entity. * * @throws XNIException Thrown by handler to signal an error. */ public void endEntity(String name, Augmentations augmentations) throws XNIException { } // // XMLDTDContentModelHandler methods // /** * The start of a content model. Depending on the type of the content * model, specific methods may be called between the call to the * startContentModel method and the call to the endContentModel method. * * @param elementName The name of the element. * @param type The content model type. * * @throws XNIException Thrown by handler to signal an error. * * @see org.apache.xerces.impl.dtd.XMLElementDecl#TYPE_EMPTY * @see org.apache.xerces.impl.dtd.XMLElementDecl#TYPE_ANY * @see org.apache.xerces.impl.dtd.XMLElementDecl#TYPE_MIXED * @see org.apache.xerces.impl.dtd.XMLElementDecl#TYPE_CHILDREN */ public void startContentModel(String elementName, short type) throws XNIException { } // startContentModel /** * A referenced element in a mixed content model. If the mixed content * model only allows text content, then this method will not be called * for that model. However, if this method is called for a mixed * content model, then the zero or more occurrence count is implied. *

* Note: This method is only called after a call to * the startContentModel method where the type is TYPE_MIXED. * * @param elementName The name of the referenced element. * * @throws XNIException Thrown by handler to signal an error. * * @see org.apache.xerces.impl.dtd.XMLElementDecl#TYPE_MIXED */ public void mixedElement(String elementName) throws XNIException { } // mixedElement /** * The start of a children group. *

* Note: This method is only called after a call to * the startContentModel method where the type is TYPE_CHILDREN. *

* Note: Children groups can be nested and have * associated occurrence counts. * * @throws XNIException Thrown by handler to signal an error. * * @see org.apache.xerces.impl.dtd.XMLElementDecl#TYPE_CHILDREN */ public void childrenStartGroup() throws XNIException { } // childrenStartGroup /** * A referenced element in a children content model. * * @param elementName The name of the referenced element. * * @throws XNIException Thrown by handler to signal an error. * * @see org.apache.xerces.impl.dtd.XMLElementDecl#TYPE_CHILDREN */ public void childrenElement(String elementName) throws XNIException { } // childrenElement /** * The separator between choices or sequences of a children content * model. *

* Note: This method is only called after a call to * the startContentModel method where the type is TYPE_CHILDREN. * * @param separator The type of children separator. * * @throws XNIException Thrown by handler to signal an error. * * @see XMLDTDContentModelHandler#SEPARATOR_CHOICE * @see XMLDTDContentModelHandler#SEPARATOR_SEQUENCE * @see org.apache.xerces.impl.dtd.XMLElementDecl#TYPE_CHILDREN */ public void childrenSeparator(short separator) throws XNIException { } // childrenSeparator /** * The occurrence count for a child in a children content model. *

* Note: This method is only called after a call to * the startContentModel method where the type is TYPE_CHILDREN. * * @param occurrence The occurrence count for the last children element * or children group. * * @throws XNIException Thrown by handler to signal an error. * * @see XMLDTDContentModelHandler#OCCURS_ZERO_OR_ONE * @see XMLDTDContentModelHandler#OCCURS_ZERO_OR_MORE * @see XMLDTDContentModelHandler#OCCURS_ONE_OR_MORE * @see org.apache.xerces.impl.dtd.XMLElementDecl#TYPE_CHILDREN */ public void childrenOccurrence(short occurrence) throws XNIException { } // childrenOccurrence /** * The end of a children group. *

* Note: This method is only called after a call to * the startContentModel method where the type is TYPE_CHILDREN. * * @see org.apache.xerces.impl.dtd.XMLElementDecl#TYPE_CHILDREN */ public void childrenEndGroup() throws XNIException { } // childrenEndGroup /** * The end of a content model. * * @throws XNIException Thrown by handler to signal an error. */ public void endContentModel() throws XNIException { } // endContentModel } // class DTDParser





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