mirror of
https://github.com/VCMP-SqMod/SqMod.git
synced 2024-11-14 03:37:16 +01:00
4a6bfc086c
Switched to POCO library for unified platform/library interface. Deprecated the external module API. It was creating more problems than solving. Removed most built-in libraries in favor of system libraries for easier maintenance. Cleaned and secured code with help from static analyzers.
104 lines
4.3 KiB
C++
104 lines
4.3 KiB
C++
//
|
|
// Locator.h
|
|
//
|
|
// Library: XML
|
|
// Package: SAX
|
|
// Module: SAX
|
|
//
|
|
// SAX Locator Interface.
|
|
//
|
|
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
|
|
// and Contributors.
|
|
//
|
|
// SPDX-License-Identifier: BSL-1.0
|
|
//
|
|
|
|
|
|
#ifndef SAX_Locator_INCLUDED
|
|
#define SAX_Locator_INCLUDED
|
|
|
|
|
|
#include "Poco/XML/XML.h"
|
|
#include "Poco/XML/XMLString.h"
|
|
|
|
|
|
namespace Poco {
|
|
namespace XML {
|
|
|
|
|
|
class XML_API Locator
|
|
/// Interface for associating a SAX event with a document location.
|
|
///
|
|
/// 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 SAX event in the XML source document.
|
|
///
|
|
/// Note that the results returned by the object will be valid only during the scope of each
|
|
/// callback method: the application will receive unpredictable results if it attempts to use
|
|
/// the locator at any other time, or after parsing completes.
|
|
///
|
|
/// 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.
|
|
{
|
|
public:
|
|
virtual XMLString getPublicId() const = 0;
|
|
/// Return the public identifier for the current document event.
|
|
///
|
|
/// The return value is the public identifier of the document entity or of the external
|
|
/// parsed entity in which the markup triggering the event appears.
|
|
|
|
virtual XMLString getSystemId() const = 0;
|
|
/// Return the system identifier for the current document event.
|
|
///
|
|
/// The return value is the system identifier of the document entity or of the external
|
|
/// parsed entity in which the markup triggering the event appears.
|
|
///
|
|
/// If the system identifier is a URL, the parser must resolve it fully before passing
|
|
/// it to the application. For example, a file name must always be provided as a
|
|
/// file:... URL, and other kinds of relative URI are also resolved against their bases.
|
|
|
|
virtual int getLineNumber() const = 0;
|
|
/// Return the line number where the current document event ends.
|
|
/// Lines are delimited by line ends, which are defined in the XML specification.
|
|
///
|
|
/// Warning: The return value from the method is intended only as an approximation for
|
|
/// the sake of diagnostics; it is not intended to provide sufficient information to
|
|
/// edit the character content of the original XML document. In some cases, these "line"
|
|
/// numbers match what would be displayed as columns, and in others they may not match the
|
|
/// source text due to internal entity expansion.
|
|
///
|
|
/// The return value is an approximation of the line number in the document entity or external
|
|
/// parsed entity where the markup triggering the event appears.
|
|
///
|
|
/// If possible, the SAX driver should provide the line position of the first character after
|
|
/// the text associated with the document event. The first line is line 1.
|
|
|
|
virtual int getColumnNumber() const = 0;
|
|
/// Return the column number where the current document event ends.
|
|
/// This is one-based number of characters since the last line end.
|
|
///
|
|
/// Warning: The return value from the method is intended only as an approximation
|
|
/// for the sake of diagnostics; it is not intended to provide sufficient information
|
|
/// to edit the character content of the original XML document. For example, when lines
|
|
/// contain combining character sequences, wide characters, surrogate pairs, or bi-directional
|
|
/// text, the value may not correspond to the column in a text editor's display.
|
|
///
|
|
/// The return value is an approximation of the column number in the document entity or external
|
|
/// parsed entity where the markup triggering the event appears.
|
|
///
|
|
/// If possible, the SAX driver should provide the line position of the first character after
|
|
/// the text associated with the document event. The first column in each line is column 1.
|
|
|
|
protected:
|
|
virtual ~Locator();
|
|
};
|
|
|
|
|
|
} } // namespace Poco::XML
|
|
|
|
|
|
#endif // SAX_Locator_INCLUDED
|