gecko-dev/parser/xml/public/nsISAXLocator.idl

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsISupports.idl"
/**
* Interface for associating a SAX event with a document location.
*
* 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.
*/
[scriptable, uuid(7a307c6c-6cc9-11da-be43-001422106990)]
interface nsISAXLocator: nsISupports {
/**
* Return the column number where the current document event ends.
*
* 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.
*
* @return The column number, or -1 if none is available.
*/
readonly attribute long columnNumber;
/**
* 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.
*
* @return The line number, or -1 if none is available.
*/
readonly attribute long lineNumber;
/**
* 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.
*
* @return A string containing the public identifier, or
* null if none is available.
*/
readonly attribute AString publicId;
/**
* 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.
*
* @return A string containing the system identifier, or null
* if none is available.
*/
readonly attribute AString systemId;
};