added DTD and propagation capabilities; dynamic entities, containers, token handlers

parser/htmlparser/src/nsTokenHandler.cpp

@@ -0,0 +1,637 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/*
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+
+/**
+ * MODULE NOTES:
+ * @update  gess 4/1/98
+ * 
+ */
+
+
+#include "nsTokenHandler.h"
+#include "nsHTMLParser.h"
+#include "nsHTMLTokens.h"
+#include "nsDebug.h"
+
+static const char* kNullParserGiven = "Error: Null parser given as argument";
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CTokenHandler::CTokenHandler(eHTMLTokenTypes aType) {
+  mType=aType;
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CTokenHandler::~CTokenHandler(){
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+eHTMLTokenTypes CTokenHandler::GetTokenType(void){
+  return mType;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CTokenHandler::CanHandle(eHTMLTokenTypes aType){
+  PRBool result=PR_FALSE;
+  return result;
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CTokenHandler::operator()(CToken* aToken,nsHTMLParser* aParser){
+  NS_ASSERTION(0!=aParser,kNullParserGiven);
+  PRBool result=PR_FALSE;
+  if(aParser){
+    result=PR_TRUE;
+  }
+  return result;
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CStartTokenHandler::CStartTokenHandler() : CTokenHandler(eToken_start) {
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CStartTokenHandler::~CStartTokenHandler(){
+}
+		                      
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CStartTokenHandler::operator()(CToken* aToken,nsHTMLParser* aParser){
+  NS_ASSERTION(0!=aParser,kNullParserGiven);
+  if(aParser){
+    return aParser->HandleStartToken(aToken);
+  }
+  return PR_FALSE;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CStartTokenHandler::CanHandle(eHTMLTokenTypes aType){
+  PRBool result=PR_FALSE;
+  return result;
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CEndTokenHandler::CEndTokenHandler(): CTokenHandler(eToken_end) {
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CEndTokenHandler::~CEndTokenHandler(){
+}
+		                      
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CEndTokenHandler::operator()(CToken* aToken,nsHTMLParser* aParser){
+  NS_ASSERTION(0!=aParser,kNullParserGiven);
+  if(aParser){
+    return aParser->HandleEndToken(aToken);
+  }
+  return PR_FALSE;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CEndTokenHandler::CanHandle(eHTMLTokenTypes aType){
+  PRBool result=PR_FALSE;
+  return result;
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CCommentTokenHandler::CCommentTokenHandler() : CTokenHandler(eToken_comment) {
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CCommentTokenHandler::~CCommentTokenHandler(){
+}
+		                      
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CCommentTokenHandler::operator()(CToken* aToken,nsHTMLParser* aParser){
+  NS_ASSERTION(0!=aParser,kNullParserGiven);
+  if(aParser){
+    return aParser->HandleCommentToken(aToken);
+  }
+  return PR_FALSE;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CCommentTokenHandler::CanHandle(eHTMLTokenTypes aType){
+  PRBool result=PR_FALSE;
+  return result;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CEntityTokenHandler::CEntityTokenHandler() : CTokenHandler(eToken_entity) {
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CEntityTokenHandler::~CEntityTokenHandler() {
+}
+		                      
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CEntityTokenHandler::operator()(CToken* aToken,nsHTMLParser* aParser){
+  NS_ASSERTION(0!=aParser,kNullParserGiven);
+  if(aParser){
+    return aParser->HandleEntityToken(aToken);
+  }
+  return PR_FALSE;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CEntityTokenHandler::CanHandle(eHTMLTokenTypes aType){
+  PRBool result=PR_FALSE;
+  return result;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CWhitespaceTokenHandler::CWhitespaceTokenHandler() : CTokenHandler(eToken_whitespace) {
+}
+
+  
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CWhitespaceTokenHandler::~CWhitespaceTokenHandler(){
+}
+		                      
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CWhitespaceTokenHandler::operator()(CToken* aToken,nsHTMLParser* aParser){
+  NS_ASSERTION(0!=aParser,kNullParserGiven);
+  if(aParser){
+    return aParser->HandleWhitespaceToken(aToken);
+  }
+  return PR_FALSE;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CWhitespaceTokenHandler::CanHandle(eHTMLTokenTypes aType){
+  PRBool result=PR_FALSE;
+  return result;
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CNewlineTokenHandler::CNewlineTokenHandler() : CTokenHandler(eToken_newline) {
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CNewlineTokenHandler::~CNewlineTokenHandler(){
+}
+		                      
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CNewlineTokenHandler::operator()(CToken* aToken,nsHTMLParser* aParser){
+  NS_ASSERTION(0!=aParser,kNullParserGiven);
+  if(aParser){
+    return aParser->HandleNewlineToken(aToken);
+  }
+  return PR_FALSE;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CNewlineTokenHandler::CanHandle(eHTMLTokenTypes aType){
+  PRBool result=PR_FALSE;
+  return result;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CTextTokenHandler::CTextTokenHandler() : CTokenHandler(eToken_text) {
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CTextTokenHandler::~CTextTokenHandler(){
+}
+		                      
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CTextTokenHandler::operator()(CToken* aToken,nsHTMLParser* aParser){
+  NS_ASSERTION(0!=aParser,kNullParserGiven);
+  if(aParser){
+    return aParser->HandleTextToken(aToken);
+  }
+  return PR_FALSE;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CTextTokenHandler::CanHandle(eHTMLTokenTypes aType){
+  PRBool result=PR_FALSE;
+  return result;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CAttributeTokenHandler::CAttributeTokenHandler() : CTokenHandler(eToken_attribute) {
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CAttributeTokenHandler::~CAttributeTokenHandler(){
+}
+		                      
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CAttributeTokenHandler::operator()(CToken* aToken,nsHTMLParser* aParser){
+  NS_ASSERTION(0!=aParser,kNullParserGiven);
+  if(aParser){
+    return aParser->HandleAttributeToken(aToken);
+  }
+  return PR_FALSE;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CAttributeTokenHandler::CanHandle(eHTMLTokenTypes aType){
+  PRBool result=PR_FALSE;
+  return result;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CScriptTokenHandler::CScriptTokenHandler() : CTokenHandler(eToken_script) {
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CScriptTokenHandler::~CScriptTokenHandler(){
+}
+		                      
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CScriptTokenHandler::operator()(CToken* aToken,nsHTMLParser* aParser){
+  NS_ASSERTION(0!=aParser,kNullParserGiven);
+  if(aParser){
+    return aParser->HandleScriptToken(aToken);
+  }
+  return PR_FALSE;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CScriptTokenHandler::CanHandle(eHTMLTokenTypes aType){
+  PRBool result=PR_FALSE;
+  return result;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CStyleTokenHandler::CStyleTokenHandler() : CTokenHandler(eToken_style) {
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CStyleTokenHandler::~CStyleTokenHandler(){
+}
+		                      
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CStyleTokenHandler::operator()(CToken* aToken,nsHTMLParser* aParser){
+  NS_ASSERTION(0!=aParser,kNullParserGiven);
+  if(aParser){
+    return aParser->HandleStyleToken(aToken);
+  }
+  return PR_FALSE;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CStyleTokenHandler::CanHandle(eHTMLTokenTypes aType){
+  PRBool result=PR_FALSE;
+  return result;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CSkippedContentTokenHandler::CSkippedContentTokenHandler() : CTokenHandler(eToken_skippedcontent) {
+}
+
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+CSkippedContentTokenHandler::~CSkippedContentTokenHandler(){
+}
+		                      
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CSkippedContentTokenHandler::operator()(CToken* aToken,nsHTMLParser* aParser){
+  NS_ASSERTION(0!=aParser,kNullParserGiven);
+  if(aParser){
+    return aParser->HandleSkippedContentToken(aToken);
+  }
+  return PR_FALSE;
+}
+
+/**-------------------------------------------------------
+ *  
+ *  
+ *  @update  gess 4/2/98
+ *  @param   
+ *  @return  
+ *------------------------------------------------------*/
+PRBool CSkippedContentTokenHandler::CanHandle(eHTMLTokenTypes aType){
+  PRBool result=PR_FALSE;
+  return result;
+}