141 lines
4.4 KiB
C++
141 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/**
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* MODULE NOTES:
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* @update gess 4/1/98
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*
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*/
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#include "nsExpatTokenizer.h"
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#include "nsParser.h"
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#include "nsScanner.h"
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#include "nsDTDUtils.h"
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#include "nsParser.h"
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/************************************************************************
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And now for the main class -- nsExpatTokenizer...
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************************************************************************/
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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static NS_DEFINE_IID(kITokenizerIID, NS_ITOKENIZER_IID);
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static NS_DEFINE_IID(kHTMLTokenizerIID, NS_HTMLTOKENIZER_IID);
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static NS_DEFINE_IID(kClassIID, NS_EXPATTOKENIZER_IID);
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/**
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* This method gets called as part of our COM-like interfaces.
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* Its purpose is to create an interface to parser object
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* of some type.
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*
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* @update gess 4/8/98
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* @param nsIID id of object to discover
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* @param aInstancePtr ptr to newly discovered interface
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* @return NS_xxx result code
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*/
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nsresult nsExpatTokenizer::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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{
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if (NULL == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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}
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if(aIID.Equals(kISupportsIID)) { //do IUnknown...
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*aInstancePtr = (nsExpatTokenizer*)(this);
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}
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else if(aIID.Equals(kITokenizerIID)) { //do ITOkenizer base class...
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*aInstancePtr = (nsITokenizer*)(this);
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}
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else if(aIID.Equals(kHTMLTokenizerIID)) { //do nsHTMLTokenizer base class...
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*aInstancePtr = (nsHTMLTokenizer*)(this);
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}
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else if(aIID.Equals(kClassIID)) { //do this class...
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*aInstancePtr = (nsExpatTokenizer*)(this);
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}
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else {
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*aInstancePtr=0;
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return NS_NOINTERFACE;
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}
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NS_ADDREF_THIS();
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return NS_OK;
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}
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/**
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* This method is defined in nsIParser. It is used to
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* cause the COM-like construction of an nsParser.
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*
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* @update gess 4/8/98
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* @param nsIParser** ptr to newly instantiated parser
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* @return NS_xxx error result
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*/
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NS_HTMLPARS nsresult NS_New_Expat_Tokenizer(nsIDTD** aInstancePtrResult) {
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nsExpatTokenizer* it = new nsExpatTokenizer();
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if (it == 0) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return it->QueryInterface(kClassIID, (void **) aInstancePtrResult);
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}
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NS_IMPL_ADDREF(nsExpatTokenizer)
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NS_IMPL_RELEASE(nsExpatTokenizer)
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/**
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* Default constructor
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*
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* @update gess 4/9/98
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* @param
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* @return
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*/
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nsExpatTokenizer::nsExpatTokenizer() : nsHTMLTokenizer() {
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NS_INIT_REFCNT();
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}
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/**
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* Default constructor
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*
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* @update gess 4/9/98
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* @param
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* @return
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*/
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nsExpatTokenizer::~nsExpatTokenizer(){
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}
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/*******************************************************************
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Here begins the real working methods for the tokenizer.
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*******************************************************************/
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/**
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* This method repeatedly called by the tokenizer.
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* Each time, we determine the kind of token were about to
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* read, and then we call the appropriate method to handle
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* that token type.
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*
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* @update gess 3/25/98
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* @param aChar: last char read
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* @param aScanner: see nsScanner.h
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* @param anErrorCode: arg that will hold error condition
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* @return new token or null
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*/
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nsresult nsExpatTokenizer::ConsumeToken(nsScanner& aScanner) {
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return nsHTMLTokenizer::ConsumeToken(aScanner);
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}
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