/usr/include/Poco/SAX/DeclHandler.h is in libpoco-dev 1.8.0.1-1ubuntu4.
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// DeclHandler.h
//
// Library: XML
// Package: SAX
// Module: SAX
//
// SAX2-ext DeclHandler Interface.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef SAX_DeclHandler_INCLUDED
#define SAX_DeclHandler_INCLUDED
#include "Poco/XML/XML.h"
#include "Poco/XML/XMLString.h"
namespace Poco {
namespace XML {
class XML_API DeclHandler
/// This is an optional extension handler for SAX2 to provide information
/// about DTD declarations in an XML document. XML
/// readers are not required to support this handler, and this handler is
/// not included in the core SAX2 distribution.
///
/// Note that data-related DTD declarations (unparsed entities and notations)
/// are already reported through the DTDHandler interface.
/// If you are using the declaration handler together with a lexical handler,
/// all of the events will occur between the startDTD and the endDTD events.
/// To set the DeclHandler for an XML reader, use the setProperty method
/// with the propertyId "http://xml.org/sax/properties/declaration-handler".
/// If the reader does not support declaration events, it will throw a
/// SAXNotRecognizedException or a SAXNotSupportedException when you attempt to
/// register the handler.
{
public:
virtual void attributeDecl(const XMLString& eName, const XMLString& aName, const XMLString* valueDefault, const XMLString* value) = 0;
/// Report an attribute type declaration.
///
/// Only the effective (first) declaration for an attribute will be reported.
/// The type will be one of the strings "CDATA", "ID", "IDREF", "IDREFS",
/// "NMTOKEN", "NMTOKENS", "ENTITY", "ENTITIES", a parenthesized token group
/// with the separator "|" and all whitespace removed, or the word "NOTATION"
/// followed by a space followed by a parenthesized token group with all whitespace
/// removed.
///
/// The value will be the value as reported to applications, appropriately normalized
/// and with entity and character references expanded.
virtual void elementDecl(const XMLString& name, const XMLString& model) = 0;
/// Report an element type declaration.
///
/// The content model will consist of the string "EMPTY", the string "ANY", or a
/// parenthesised group, optionally followed by an occurrence indicator. The model
/// will be normalized so that all parameter entities are fully resolved and all
/// whitespace is removed,and will include the enclosing parentheses. Other
/// normalization (such as removing redundant parentheses or simplifying occurrence
/// indicators) is at the discretion of the parser.
virtual void externalEntityDecl(const XMLString& name, const XMLString* publicId, const XMLString& systemId) = 0;
/// Report an external entity declaration.
///
/// Only the effective (first) declaration for each entity will be reported.
///
/// If the system identifier is a URL, the parser must resolve it fully before
/// passing it to the application.
virtual void internalEntityDecl(const XMLString& name, const XMLString& value) = 0;
/// Report an internal entity declaration.
///
/// Only the effective (first) declaration for each entity will be reported. All
/// parameter entities in the value will be expanded, but general entities will not.
protected:
virtual ~DeclHandler();
};
} } // namespace Poco::XML
#endif // SAX_DeclHandler_INCLUDED
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