mirror of
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208 lines
7.2 KiB
Plaintext
208 lines
7.2 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 "nsIStreamListener.idl"
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interface nsIInputStream;
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interface nsIRequestObserver;
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interface nsIURI;
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interface nsISAXContentHandler;
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interface nsISAXDTDHandler;
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interface nsISAXEntityResolver;
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interface nsISAXErrorHandler;
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interface nsISAXLexicalHandler;
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interface nsIMozSAXXMLDeclarationHandler;
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/**
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* Interface for reading an XML document using callbacks.
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*
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* nsISAXXMLReader is the interface that an XML parser's SAX2
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* driver must implement. This interface allows an application to set
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* and query features and properties in the parser, to register event
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* handlers for document processing, and to initiate a document
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* parse.
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*/
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[scriptable, uuid(5b1de802-9091-454f-9972-5753c0d0c70e)]
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interface nsISAXXMLReader : nsIStreamListener {
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/**
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* The base URI.
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*/
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attribute nsIURI baseURI;
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/**
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* If the application does not register a content handler, all
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* content events reported by the SAX parser will be silently
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* ignored.
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*
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* Applications may register a new or different handler in the
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* middle of a parse, and the SAX parser must begin using the new
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* handler immediately.
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*/
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attribute nsISAXContentHandler contentHandler;
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/**
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* If the application does not register a DTD handler, all DTD
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* events reported by the SAX parser will be silently ignored.
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*
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* Applications may register a new or different handler in the
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* middle of a parse, and the SAX parser must begin using the new
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* handler immediately.
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*/
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attribute nsISAXDTDHandler dtdHandler;
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/**
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* If the application does not register an error handler, all
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* error events reported by the SAX parser will be silently ignored;
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* however, normal processing may not continue. It is highly
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* recommended that all SAX applications implement an error handler
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* to avoid unexpected bugs.
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*
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* Applications may register a new or different handler in the
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* middle of a parse, and the SAX parser must begin using the new
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* handler immediately.
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*/
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attribute nsISAXErrorHandler errorHandler;
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/**
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* A handler for the (optional) XML declaration of a document.
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* <?xml version='1.0'?>
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*
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* @note This is not part of the SAX standard.
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*/
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attribute nsIMozSAXXMLDeclarationHandler declarationHandler;
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/**
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* If the application does not register a lexical handler, all
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* lexical events (e.g. startDTD) reported by the SAX parser will be
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* silently ignored.
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*
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* Applications may register a new or different handler in the
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* middle of a parse, and the SAX parser must begin using the new
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* handler immediately.
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*/
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attribute nsISAXLexicalHandler lexicalHandler;
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/**
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* Set the value of a feature flag.
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*
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* The feature name is any fully-qualified URI. It is possible
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* for an XMLReader to expose a feature value but to be unable to
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* change the current value. Some feature values may be immutable
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* or mutable only in specific contexts, such as before, during, or
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* after a parse.
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*
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* All XMLReaders are required to support setting
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* http://xml.org/sax/features/namespaces to true and
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* http://xml.org/sax/features/namespace-prefixes to false.
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*
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* @param name String flag for a parser feature.
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* @param value Turn the feature on/off.
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*
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* @note This is currently supported only for
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* http://xml.org/sax/features/namespace-prefixes . All other
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* features will result in a NOT_IMPLEMENTED exception.
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*/
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void setFeature(in AString name, in boolean value);
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/**
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* Look up the value of a feature flag.
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*
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* The feature name is any fully-qualified URI. It is
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* possible for an XMLReader to recognize a feature name but
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* temporarily be unable to return its value.
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* Some feature values may be available only in specific
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* contexts, such as before, during, or after a parse.
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*
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* All XMLReaders are required to recognize the
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* http://xml.org/sax/features/namespaces and the
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* http://xml.org/sax/features/namespace-prefixes feature names.
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*
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* @param name String flag for a parser feature.
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*
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* @note This is currently supported only for
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* http://xml.org/sax/features/namespace-prefixes . All other
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* features will result in a NOT_IMPLEMENTED exception.
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*/
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boolean getFeature(in AString name);
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/**
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* Set the value of a property. NOT CURRENTLY IMPLEMENTED.
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*
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* The property name is any fully-qualified URI. It is possible
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* for an XMLReader to recognize a property name but to be unable to
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* change the current value. Some property values may be immutable
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* or mutable only in specific contexts, such as before, during, or
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* after a parse.
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*
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* XMLReaders are not required to recognize setting any specific
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* property names, though a core set is defined by SAX2.
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*
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* This method is also the standard mechanism for setting
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* extended handlers.
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*
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* @param name String flag for a parser feature
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* @param value Turn the feature on/off.
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*/
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void setProperty(in AString name, in nsISupports value);
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/**
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* Look up the value of a property. NOT CURRENTLY IMPLEMENTED.
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*
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* The property name is any fully-qualified URI. It is
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* possible for an XMLReader to recognize a property name but
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* temporarily be unable to return its value.
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* Some property values may be available only in specific
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* contexts, such as before, during, or after a parse.
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*
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* XMLReaders are not required to recognize any specific
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* property names, though an initial core set is documented for
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* SAX2.
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*
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* Implementors are free (and encouraged) to invent their own properties,
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* using names built on their own URIs.
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*
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* @param name The property name, which is a fully-qualified URI.
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* @return The current value of the property.
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*/
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boolean getProperty(in AString name);
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/**
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*
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* @param str The UTF16 string to be parsed
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* @param contentType The content type of the string (see parseFromStream)
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*
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*/
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void parseFromString(in AString str, in string contentType);
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/**
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*
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* @param stream The byte stream whose contents are parsed
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* @param charset The character set that was used to encode the byte
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* stream. NULL if not specified.
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* @param contentType The content type of the string - either text/xml,
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* application/xml, or application/xhtml+xml.
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* Must not be NULL.
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*
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*/
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void parseFromStream(in nsIInputStream stream,
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in string charset,
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in string contentType);
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/**
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* Begin an asynchronous parse. This method initializes the parser,
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* and must be called before any nsIStreamListener methods. It is
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* then the caller's duty to call nsIStreamListener methods to drive
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* the parser. Once this method is called, the caller must not call
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* one of the other parse methods.
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*
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* @param observer The nsIRequestObserver to notify upon start or stop.
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* Can be NULL.
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*/
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void parseAsync(in nsIRequestObserver observer);
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};
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