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96 lines
3.7 KiB
Plaintext
96 lines
3.7 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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interface nsISAXLocator;
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/**
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* Basic interface for SAX error handlers.
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*
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* If a SAX application needs to implement customized error
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* handling, it must implement this interface and then register an
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* instance with the XML reader. The parser will then report all
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* errors and warnings through this interface.
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*
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* WARNING: If an application does not register an ErrorHandler,
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* XML parsing errors will go unreported. In order to detect validity
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* errors, an ErrorHandler that does something with error() calls must
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* be registered.
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*
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*/
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[scriptable, uuid(e02b6693-6cca-11da-be43-001422106990)]
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interface nsISAXErrorHandler: nsISupports {
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/**
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* Receive notification of a recoverable error.
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*
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* This corresponds to the definition of "error" in section 1.2
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* of the W3C XML 1.0 Recommendation. For example, a validating
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* parser would use this callback to report the violation of a
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* validity constraint. The default behaviour is to take no
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* action.
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*
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* The SAX parser must continue to provide normal parsing events
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* after invoking this method: it should still be possible for the
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* application to process the document through to the end. If the
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* application cannot do so, then the parser should report a fatal
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* error even if the XML recommendation does not require it to do
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* so.
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*
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* Filters may use this method to report other, non-XML errors as
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* well.
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*
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* @param locator The locator object for the error (may be null).
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* @param error The error message.
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*/
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void error(in nsISAXLocator locator, in AString error);
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/**
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* Receive notification of a non-recoverable error.
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*
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* There is an apparent contradiction between the documentation
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* for this method and the documentation for
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* ContentHandler.endDocument(). Until this ambiguity is resolved in
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* a future major release, clients should make no assumptions about
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* whether endDocument() will or will not be invoked when the parser
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* has reported a fatalError() or thrown an exception.
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*
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* This corresponds to the definition of "fatal error" in section
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* 1.2 of the W3C XML 1.0 Recommendation. For example, a parser
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* would use this callback to report the violation of a
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* well-formedness constraint.
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*
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* The application must assume that the document is unusable
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* after the parser has invoked this method, and should continue (if
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* at all) only for the sake of collecting additional error
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* messages: in fact, SAX parsers are free to stop reporting any
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* other events once this method has been invoked.
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*
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* @param locator The locator object for the error (may be null).
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* @param error The error message.
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*/
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void fatalError(in nsISAXLocator locator, in AString error);
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/**
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* Receive notification of a warning.
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*
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* SAX parsers will use this method to report conditions that are
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* not errors or fatal errors as defined by the XML
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* recommendation. The default behaviour is to take no action.
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*
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* The SAX parser must continue to provide normal parsing events
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* after invoking this method: it should still be possible for the
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* application to process the document through to the end.
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*
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* Filters may use this method to report other, non-XML warnings
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* as well.
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*
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* @param locator The locator object for the warning (may be null).
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* @param error The warning message.
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*/
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void ignorableWarning(in nsISAXLocator locator, in AString error);
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};
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