mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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403 lines
9.5 KiB
C++
403 lines
9.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIAtom.h"
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#include "nsParserNode.h"
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#include <string.h>
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#include "nsHTMLTokens.h"
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#include "nsITokenizer.h"
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#include "nsDTDUtils.h"
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/**
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* Default Constructor
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*/
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nsCParserNode::nsCParserNode()
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: mRefCnt(0), mGenericState(PR_FALSE), mUseCount(0), mToken(nsnull),
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mTokenAllocator(nsnull)
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{
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MOZ_COUNT_CTOR(nsCParserNode);
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#ifdef HEAP_ALLOCATED_NODES
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mNodeAllocator = nsnull;
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#endif
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}
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/**
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* Constructor
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*
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* @update gess 3/25/98
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* @param aToken -- token to init internal token
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* @return
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*/
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nsCParserNode::nsCParserNode(CToken* aToken,
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nsTokenAllocator* aTokenAllocator,
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nsNodeAllocator* aNodeAllocator)
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: mRefCnt(0), mGenericState(PR_FALSE), mUseCount(0), mToken(aToken),
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mTokenAllocator(aTokenAllocator)
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{
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MOZ_COUNT_CTOR(nsCParserNode);
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static int theNodeCount = 0;
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++theNodeCount;
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if (mTokenAllocator) {
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IF_HOLD(mToken);
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} // Else a stack-based token
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#ifdef HEAP_ALLOCATED_NODES
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mNodeAllocator = aNodeAllocator;
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#endif
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}
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/**
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* destructor
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* NOTE: We intentionally DON'T recycle mToken here.
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* It may get cached for use elsewhere
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* @update gess 3/25/98
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* @param
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* @return
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*/
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nsCParserNode::~nsCParserNode() {
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MOZ_COUNT_DTOR(nsCParserNode);
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ReleaseAll();
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#ifdef HEAP_ALLOCATED_NODES
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if(mNodeAllocator) {
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mNodeAllocator->Recycle(this);
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}
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mNodeAllocator = nsnull;
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#endif
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mTokenAllocator = 0;
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}
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/**
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* Init
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*
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* @update gess 3/25/98
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* @param
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* @return
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*/
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nsresult
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nsCParserNode::Init(CToken* aToken,
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nsTokenAllocator* aTokenAllocator,
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nsNodeAllocator* aNodeAllocator)
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{
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mTokenAllocator = aTokenAllocator;
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mToken = aToken;
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if (mTokenAllocator) {
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IF_HOLD(mToken);
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} // Else a stack-based token
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mGenericState = PR_FALSE;
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mUseCount=0;
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#ifdef HEAP_ALLOCATED_NODES
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mNodeAllocator = aNodeAllocator;
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#endif
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return NS_OK;
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}
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void
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nsCParserNode::AddAttribute(CToken* aToken)
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{
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}
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/**
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* Gets the name of this node. Currently unused.
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*
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* @update gess 3/25/98
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* @param
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* @return string ref containing node name
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*/
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const nsAString&
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nsCParserNode::GetTagName() const {
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return EmptyString();
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}
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/**
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* Get text value of this node, which translates into
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* getting the text value of the underlying token
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*
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* @update gess 3/25/98
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* @param
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* @return string ref of text from internal token
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*/
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const nsAString&
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nsCParserNode::GetText() const
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{
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if (mToken) {
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return mToken->GetStringValue();
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}
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return EmptyString();
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}
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/**
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* Get node type, meaning, get the tag type of the
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* underlying token
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*
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* @update gess 3/25/98
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* @param
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* @return int value that represents tag type
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*/
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PRInt32
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nsCParserNode::GetNodeType(void) const
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{
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return (mToken) ? mToken->GetTypeID() : 0;
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}
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/**
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* Gets the token type, which corresponds to a value from
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* eHTMLTokens_xxx.
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*
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* @update gess 3/25/98
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* @param
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* @return
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*/
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PRInt32
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nsCParserNode::GetTokenType(void) const
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{
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return (mToken) ? mToken->GetTokenType() : 0;
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}
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/**
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* Retrieve the number of attributes on this node
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*
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* @update gess 3/25/98
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* @param
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* @return int -- representing attribute count
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*/
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PRInt32
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nsCParserNode::GetAttributeCount(PRBool askToken) const
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{
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return 0;
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}
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/**
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* Retrieve the string rep of the attribute key at the
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* given index.
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*
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* @update gess 3/25/98
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* @param anIndex-- offset of attribute to retrieve
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* @return string rep of given attribute text key
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*/
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const nsAString&
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nsCParserNode::GetKeyAt(PRUint32 anIndex) const
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{
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return EmptyString();
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}
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/**
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* Retrieve the string rep of the attribute at given offset
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*
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* @update gess 3/25/98
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* @param anIndex-- offset of attribute to retrieve
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* @return string rep of given attribute text value
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*/
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const nsAString&
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nsCParserNode::GetValueAt(PRUint32 anIndex) const
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{
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return EmptyString();
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}
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PRInt32
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nsCParserNode::TranslateToUnicodeStr(nsString& aString) const
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{
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if (eToken_entity == mToken->GetTokenType()) {
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return ((CEntityToken*)mToken)->TranslateToUnicodeStr(aString);
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}
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return -1;
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}
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/**
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* This getter retrieves the line number from the input source where
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* the token occurred. Lines are interpreted as occurring between \n characters.
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* @update gess7/24/98
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* @return int containing the line number the token was found on
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*/
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PRInt32
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nsCParserNode::GetSourceLineNumber(void) const {
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return mToken ? mToken->GetLineNumber() : 0;
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}
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/**
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* This method pop the attribute token
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* @update harishd 03/25/99
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* @return token at anIndex
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*/
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CToken*
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nsCParserNode::PopAttributeToken() {
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return 0;
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}
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CToken*
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nsCParserNode::PopAttributeTokenFront() {
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return 0;
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}
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/** Retrieve a string containing the tag and its attributes in "source" form
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* @update rickg 06June2000
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* @return void
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*/
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void
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nsCParserNode::GetSource(nsString& aString) const
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{
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eHTMLTags theTag = mToken ? (eHTMLTags)mToken->GetTypeID() : eHTMLTag_unknown;
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aString.Assign(PRUnichar('<'));
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const PRUnichar* theTagName = nsHTMLTags::GetStringValue(theTag);
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if(theTagName) {
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aString.Append(theTagName);
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}
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aString.Append(PRUnichar('>'));
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}
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/** Release all the objects you're holding to.
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* @update harishd 08/02/00
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* @return void
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*/
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nsresult
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nsCParserNode::ReleaseAll()
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{
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if(mTokenAllocator) {
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IF_FREE(mToken,mTokenAllocator);
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}
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return NS_OK;
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}
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nsresult
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nsCParserStartNode::Init(CToken* aToken,
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nsTokenAllocator* aTokenAllocator,
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nsNodeAllocator* aNodeAllocator)
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{
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NS_ASSERTION(mAttributes.GetSize() == 0, "attributes not recycled!");
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return nsCParserNode::Init(aToken, aTokenAllocator, aNodeAllocator);
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}
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void nsCParserStartNode::AddAttribute(CToken* aToken)
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{
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NS_ASSERTION(0 != aToken, "Error: Token shouldn't be null!");
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mAttributes.Push(aToken);
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}
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PRInt32
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nsCParserStartNode::GetAttributeCount(PRBool askToken) const
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{
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PRInt32 result = 0;
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if (askToken) {
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result = mToken ? mToken->GetAttributeCount() : 0;
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}
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else {
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result = mAttributes.GetSize();
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}
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return result;
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}
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const nsAString&
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nsCParserStartNode::GetKeyAt(PRUint32 anIndex) const
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{
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if ((PRInt32)anIndex < mAttributes.GetSize()) {
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CAttributeToken* attr =
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static_cast<CAttributeToken*>(mAttributes.ObjectAt(anIndex));
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if (attr) {
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return attr->GetKey();
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}
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}
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return EmptyString();
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}
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const nsAString&
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nsCParserStartNode::GetValueAt(PRUint32 anIndex) const
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{
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if (PRInt32(anIndex) < mAttributes.GetSize()) {
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CAttributeToken* attr =
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static_cast<CAttributeToken*>(mAttributes.ObjectAt(anIndex));
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if (attr) {
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return attr->GetValue();
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}
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}
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return EmptyString();
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}
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CToken*
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nsCParserStartNode::PopAttributeToken()
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{
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return static_cast<CToken*>(mAttributes.Pop());
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}
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CToken*
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nsCParserStartNode::PopAttributeTokenFront()
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{
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return static_cast<CToken*>(mAttributes.PopFront());
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}
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void nsCParserStartNode::GetSource(nsString& aString) const
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{
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aString.Assign(PRUnichar('<'));
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const PRUnichar* theTagName =
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nsHTMLTags::GetStringValue(nsHTMLTag(mToken->GetTypeID()));
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if (theTagName) {
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aString.Append(theTagName);
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}
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PRInt32 index;
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PRInt32 size = mAttributes.GetSize();
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for (index = 0 ; index < size; ++index) {
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CAttributeToken *theToken =
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static_cast<CAttributeToken*>(mAttributes.ObjectAt(index));
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if (theToken) {
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theToken->AppendSourceTo(aString);
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aString.Append(PRUnichar(' ')); //this will get removed...
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}
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}
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aString.Append(PRUnichar('>'));
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}
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nsresult nsCParserStartNode::ReleaseAll()
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{
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NS_ASSERTION(0!=mTokenAllocator, "Error: no token allocator");
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CToken* theAttrToken;
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while ((theAttrToken = static_cast<CToken*>(mAttributes.Pop()))) {
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IF_FREE(theAttrToken, mTokenAllocator);
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}
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nsCParserNode::ReleaseAll();
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return NS_OK;
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}
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