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// -*- C++ -*-
//=============================================================================
/**
* @file Locator.h
*
* $Id$
*
* @author Nanbor Wang <nanbor@cs.wustl.edu>
*/
//=============================================================================
#ifndef _ACEXML_LOCATOR_H_
#define _ACEXML_LOCATOR_H_
#include /**/ "ace/pre.h"
#include "ACEXML/common/ACEXML_Export.h"
#include "ACEXML/common/XML_Types.h"
/**
* @class ACEXML_Locator Locator.h "ACEXML/common/Locator.h"
*
* @brief ACEXML_Locator defines operations that an XML locator should support.
*
* If a SAX parser provides location information to the SAX
* application, it does so by implementing this interface and then
* passing an instance to the application using the content handler's
* setDocumentLocator method. The application can use the object to
* obtain the location of any other content handler event in the XML
* source document.
*
* Note that the results returned by the object will be valid only
* during the scope of each content handler method: the application
* will receive unpredictable results if it attempts to use the
* locator at any other time.
*
* SAX parsers are not required to supply a locator, but they are very
* strongly encouraged to do so. If the parser supplies a locator, it
* must do so before reporting any other document events. If no
* locator has been set by the time the application receives the
* startDocument event, the application should assume that a locator
* is not available.
*/
class ACEXML_Export ACEXML_Locator
{
public:
virtual ~ACEXML_Locator (void);
/*
* Return the column number where the current document event ends.
*/
virtual int getColumnNumber (void) const = 0;
/*
* Return the line number where the current document event ends.
*/
virtual int getLineNumber (void) const = 0;
/*
* Return the public identifier for the current document event.
*/
virtual const ACEXML_Char *getPublicId (void) const = 0;
/*
* Return the system identifier for the current document event.
*/
virtual const ACEXML_Char *getSystemId (void) const = 0;
};
#include /**/ "ace/post.h"
#endif /* _ACEXML_LOCATOR_H_ */
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