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132 lines
4.9 KiB
Java
132 lines
4.9 KiB
Java
// DeclHandler.java - Optional handler for DTD declaration events.
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// Public Domain: no warranty.
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// $Id: DeclHandler.java,v 1.1 2000/10/02 02:43:19 sboag Exp $
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package org.xml.sax.ext;
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import org.xml.sax.SAXException;
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/**
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* SAX2 extension handler for DTD declaration events.
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*
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* <blockquote>
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* <em>This module, both source code and documentation, is in the
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* Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
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* </blockquote>
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*
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* <p>This is an optional extension handler for SAX2 to provide
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* information about DTD declarations in an XML document. XML
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* readers are not required to support this handler.</p>
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*
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* <p>Note that data-related DTD declarations (unparsed entities and
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* notations) are already reported through the {@link
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* org.xml.sax.DTDHandler DTDHandler} interface.</p>
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*
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* <p>If you are using the declaration handler together with a lexical
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* handler, all of the events will occur between the
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* {@link org.xml.sax.ext.LexicalHandler#startDTD startDTD} and the
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* {@link org.xml.sax.ext.LexicalHandler#endDTD endDTD} events.</p>
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*
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* <p>To set the DeclHandler for an XML reader, use the
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* {@link org.xml.sax.XMLReader#setProperty setProperty} method
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* with the propertyId "http://xml.org/sax/handlers/DeclHandler".
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* If the reader does not support declaration events, it will throw a
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* {@link org.xml.sax.SAXNotRecognizedException SAXNotRecognizedException}
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* or a
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* {@link org.xml.sax.SAXNotSupportedException SAXNotSupportedException}
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* when you attempt to register the handler.</p>
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*
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* @since SAX 2.0
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* @author David Megginson,
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* <a href="mailto:sax@megginson.com">sax@megginson.com</a>
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* @version 2.0beta
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* @see org.xml.sax.XMLReader
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*/
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public interface DeclHandler
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{
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/**
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* Report an element type declaration.
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*
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* <p>The content model will consist of the string "EMPTY", the
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* string "ANY", or a parenthesised group, optionally followed
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* by an occurrence indicator. The model will be normalized so
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* that all whitespace is removed,and will include the enclosing
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* parentheses.</p>
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*
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* @param name The element type name.
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* @param model The content model as a normalized string.
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* @exception SAXException The application may raise an exception.
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*/
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public abstract void elementDecl (String name, String model)
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throws SAXException;
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/**
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* Report an attribute type declaration.
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*
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* <p>Only the effective (first) declaration for an attribute will
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* be reported. The type will be one of the strings "CDATA",
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* "ID", "IDREF", "IDREFS", "NMTOKEN", "NMTOKENS", "ENTITY",
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* "ENTITIES", or "NOTATION", or a parenthesized token group with
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* the separator "|" and all whitespace removed.</p>
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*
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* @param eName The name of the associated element.
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* @param aName The name of the attribute.
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* @param type A string representing the attribute type.
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* @param valueDefault A string representing the attribute default
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* ("#IMPLIED", "#REQUIRED", or "#FIXED") or null if
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* none of these applies.
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* @param value A string representing the attribute's default value,
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* or null if there is none.
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* @exception SAXException The application may raise an exception.
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*/
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public abstract void attributeDecl (String eName,
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String aName,
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String type,
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String valueDefault,
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String value)
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throws SAXException;
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/**
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* Report an internal entity declaration.
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*
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* <p>Only the effective (first) declaration for each entity
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* will be reported.</p>
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*
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* @param name The name of the entity. If it is a parameter
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* entity, the name will begin with '%'.
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* @param value The replacement text of the entity.
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* @exception SAXException The application may raise an exception.
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* @see #externalEntityDecl
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* @see org.xml.sax.DTDHandler#unparsedEntityDecl
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*/
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public abstract void internalEntityDecl (String name, String value)
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throws SAXException;
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/**
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* Report a parsed external entity declaration.
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*
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* <p>Only the effective (first) declaration for each entity
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* will be reported.</p>
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*
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* @param name The name of the entity. If it is a parameter
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* entity, the name will begin with '%'.
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* @param publicId The declared public identifier of the entity, or
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* null if none was declared.
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* @param systemId The declared system identifier of the entity.
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* @exception SAXException The application may raise an exception.
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* @see #internalEntityDecl
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* @see org.xml.sax.DTDHandler#unparsedEntityDecl
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*/
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public abstract void externalEntityDecl (String name, String publicId,
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String systemId)
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throws SAXException;
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}
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// end of DeclHandler.java
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