Bug 45627 and bug 45552. XMLSerializer to deal better with empty elements, special characters, elements from the HTML namespace and namespaces in general, and processing instructions. Removed a lot of duplicate code in XML Extras component, and made several small optimizations with nsCOMPtr initializations. r=vidur, a=jst.

This commit is contained in:
heikki%netscape.com 2006-04-20 03:37:16 +00:00
Родитель c3499d764d
Коммит d225afedf0
2 изменённых файлов: 64 добавлений и 633 удалений

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@ -22,40 +22,21 @@
#include "nsDOMSerializer.h"
#include "nsIDOMNode.h"
#include "nsIDOMElement.h"
#include "nsIDOMDocumentType.h"
#include "nsIDOMText.h"
#include "nsIDOMCDATASection.h"
#include "nsIDOMComment.h"
#include "nsIDOMProcessingInstruction.h"
#include "nsIDOMNamedNodeMap.h"
#include "nsIDOMAttr.h"
#include "nsIDOMNodeList.h"
#include "nsIDOMRange.h"
#include "nsIOutputStream.h"
#include "nsIUnicodeEncoder.h"
#include "nsIServiceManager.h"
#include "nsICharsetConverterManager.h"
#define USE_NSICONTENT
#ifdef USE_NSICONTENT
#include "nsIContent.h"
#include "nsIDocument.h"
#include "nsINameSpaceManager.h"
#endif
#include "nsIDOMDocument.h"
#include "nsIDocumentEncoder.h"
#include "nsIComponentManager.h"
#include "nsIContentSerializer.h"
#include "nsString.h"
static NS_DEFINE_CID(kCharsetConverterManagerCID, NS_ICHARSETCONVERTERMANAGER_CID);
typedef struct {
nsString mPrefix;
nsString mURI;
nsIDOMElement* mOwner;
} NameSpaceDecl;
#include "nsLayoutCID.h" // XXX Need range CID
static NS_DEFINE_CID(kRangeCID,NS_RANGE_CID);
nsDOMSerializer::nsDOMSerializer()
{
NS_INIT_ISUPPORTS();
mPrefixIndex = 0;
}
nsDOMSerializer::~nsDOMSerializer()
@ -64,582 +45,85 @@ nsDOMSerializer::~nsDOMSerializer()
NS_IMPL_ISUPPORTS2(nsDOMSerializer, nsIDOMSerializer, nsISecurityCheckedComponent)
void
nsDOMSerializer::SerializeText(nsIDOMText* aText, nsString& aStr)
static nsresult SetUpEncoder(nsIDOMNode *aRoot, const char* aCharset, nsIDocumentEncoder **aEncoder)
{
nsAutoString data;
if (aText) {
aText->GetData(data);
aStr.Append(data);
}
}
void
nsDOMSerializer::SerializeCDATASection(nsIDOMCDATASection* aCDATASection,
nsString& aStr)
{
nsAutoString data;
if (aCDATASection) {
aCDATASection->GetData(data);
aStr.AppendWithConversion("<![CDATA[");
aStr.Append(data);
aStr.AppendWithConversion("]]>");
}
}
void
nsDOMSerializer::SerializeProcessingInstruction(nsIDOMProcessingInstruction* aPI,
nsString& aStr)
{
nsAutoString target, data;
if (aPI) {
aStr.AppendWithConversion("<?");
aPI->GetTarget(target);
aStr.Append(target);
aPI->GetData(data);
if (data.Length() > 0) {
aStr.AppendWithConversion(" ");
aStr.Append(data);
}
aStr.AppendWithConversion(">");
}
}
void
nsDOMSerializer::SerializeComment(nsIDOMComment* aComment,
nsString& aStr)
{
nsAutoString data;
if (aComment) {
aStr.AppendWithConversion("<!--");
aComment->GetData(data);
aStr.Append(data);
aStr.AppendWithConversion("-->");
}
}
void
nsDOMSerializer::SerializeDoctype(nsIDOMDocumentType* aDoctype,
nsString& aStr)
{
if (aDoctype) {
nsAutoString name, publicId, systemId, internalSubset;
aDoctype->GetName(name);
aDoctype->GetPublicId(publicId);
aDoctype->GetSystemId(systemId);
aDoctype->GetInternalSubset(internalSubset);
aStr.AppendWithConversion("<!DOCTYPE ");
aStr.Append(name);
if (publicId.Length() > 0) {
aStr.AppendWithConversion(" PUBLIC \"");
aStr.Append(publicId);
aStr.AppendWithConversion("\" \"");
aStr.Append(systemId);
aStr.AppendWithConversion("\"");
}
else if (systemId.Length() > 0) {
aStr.AppendWithConversion(" SYSTEM \"");
aStr.Append(systemId);
aStr.AppendWithConversion("\"");
}
if (internalSubset.Length() > 0) {
aStr.AppendWithConversion(" ");
aStr.Append(internalSubset);
}
aStr.AppendWithConversion(">");
}
}
static const char* kXMLNS = "xmlns";
void
nsDOMSerializer::PushNameSpaceDecl(nsString& aPrefix,
nsString& aURI,
nsIDOMElement* aOwner)
{
NameSpaceDecl* decl = new NameSpaceDecl();
if (decl) {
decl->mPrefix.Assign(aPrefix);
decl->mURI.Assign(aURI);
// Don't addref - this weak reference will be removed when
// we pop the stack
decl->mOwner = aOwner;
mNameSpaceStack.AppendElement((void*)decl);
}
}
void
nsDOMSerializer::PopNameSpaceDeclsFor(nsIDOMElement* aOwner)
{
PRInt32 index, count;
count = mNameSpaceStack.Count();
for (index = count; index >= 0; index--) {
NameSpaceDecl* decl = (NameSpaceDecl*)mNameSpaceStack.ElementAt(index);
if (decl) {
if (decl->mOwner != aOwner) {
break;
}
mNameSpaceStack.RemoveElementAt(index);
delete decl;
}
}
}
PRBool
nsDOMSerializer::ConfirmPrefix(nsString& aPrefix,
nsString& aURI)
{
if (aPrefix.EqualsWithConversion(kXMLNS)) {
return PR_FALSE;
}
if (aURI.Length() == 0) {
aPrefix.Truncate();
return PR_FALSE;
}
PRInt32 index, count;
nsAutoString closestURIMatch;
PRBool uriMatch = PR_FALSE;
count = mNameSpaceStack.Count();
for (index = count; index >= 0; index--) {
NameSpaceDecl* decl = (NameSpaceDecl*)mNameSpaceStack.ElementAt(index);
if (decl) {
// Check if we've found a prefix match
if (aPrefix.Equals(decl->mPrefix)) {
// If the URI's match, we don't have to add a namespace decl
if (aURI.Equals(decl->mURI)) {
return PR_FALSE;
}
// If they don't, we can't use this prefix
else {
aPrefix.Truncate();
}
}
// If we've found a URI match, then record the first one
else if (!uriMatch && aURI.Equals(decl->mURI)) {
uriMatch = PR_TRUE;
closestURIMatch.Assign(decl->mPrefix);
}
}
}
// There are no namespace declarations that match the prefix, uri pair.
// If there's another prefix that matches that URI, us it.
if (uriMatch) {
aPrefix.Assign(closestURIMatch);
return PR_FALSE;
}
// If we don't have a prefix, create one
else if (aPrefix.Length() == 0) {
aPrefix.AssignWithConversion("a");
aPrefix.AppendInt(mPrefixIndex++);
}
// Indicate that we need to create a namespace decl for the
// final prefix
return PR_TRUE;
}
void
nsDOMSerializer::SerializeAttr(nsString& aPrefix,
nsString& aName,
nsString& aValue,
nsString& aStr)
{
aStr.AppendWithConversion(" ");
if (aPrefix.Length() > 0) {
aStr.Append(aPrefix);
aStr.AppendWithConversion(":");
}
aStr.Append(aName);
*aEncoder = nsnull;
aStr.AppendWithConversion("=\"");
aStr.Append(aValue);
aStr.AppendWithConversion("\"");
}
nsresult rv;
nsCOMPtr<nsIDocumentEncoder> encoder(do_CreateInstance(NS_DOC_ENCODER_CONTRACTID_BASE "text/xml",&rv));
if (NS_FAILED(rv))
return rv;
void
nsDOMSerializer::SerializeElementStart(nsIDOMElement* aElement, nsString& aStr)
{
if (aElement) {
nsAutoString tagPrefix, tagLocalName, tagNamespaceURI;
nsAutoString xmlnsStr, defaultnsStr;
xmlnsStr.AssignWithConversion(kXMLNS);
defaultnsStr.AssignWithConversion("");
aElement->GetPrefix(tagPrefix);
aElement->GetLocalName(tagLocalName);
aElement->GetNamespaceURI(tagNamespaceURI);
#ifdef USE_NSICONTENT
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
PRInt32 index, count;
nsAutoString nameStr, prefixStr, uriStr, valueStr;
PRInt32 namespaceID;
nsCOMPtr<nsIAtom> attrName, attrPrefix;
if (content) {
content->GetAttributeCount(count);
// First scan for namespace declarations, pushing each on the stack
for (index = 0; index < count; index++) {
content->GetAttributeNameAt(index,
namespaceID,
*getter_AddRefs(attrName),
*getter_AddRefs(attrPrefix));
if (attrPrefix) {
attrPrefix->ToString(prefixStr);
}
else {
prefixStr.Truncate();
}
attrName->ToString(nameStr);
content->GetAttribute(namespaceID, attrName, uriStr);
if ((namespaceID == kNameSpaceID_XMLNS) ||
prefixStr.EqualsWithConversion(kXMLNS)) {
PushNameSpaceDecl(nameStr, uriStr, aElement);
}
else if (nameStr.EqualsWithConversion(kXMLNS)) {
PushNameSpaceDecl(defaultnsStr, uriStr, aElement);
}
}
}
#else
PRInt32 index, count;
nsAutoString nameStr, prefixStr, uriStr, valueStr;
nsCOMPtr<nsIDOMNamedNodeMap> attrMap;
nsCOMPtr<nsIDOMNode> attrNode;
nsCOMPtr<nsIDOMAttr> attrObj;
aElement->GetAttributes(getter_AddRefs(attrMap));
if (attrMap) {
attrMap->GetLength((PRUint32*)&count);
// First scan for namespace declarations, pushing each on the stack
for (index = 0; index < count; index++) {
attrMap->Item(index, getter_AddRefs(attrNode));
attrObj = do_QueryInterface(attrNode);
if (attrObj) {
attrObj->GetPrefix(prefixStr);
attrObj->GetLocalName(nameStr);
attrObj->GetNamespaceURI(uriStr);
if (prefixStr.EqualsWithConversion(kXMLNS)) {
PushNameSpaceDecl(nameStr, uriStr, aElement);
}
else if (nameStr.EqualsWithConversion(kXMLNS)) {
PushNameSpaceDecl(nsAutoString(), uriStr, aElement);
}
}
}
}
#endif
PRBool addNSAttr;
// Serialize the qualified name of the element
addNSAttr = ConfirmPrefix(tagPrefix, tagNamespaceURI);
aStr.AppendWithConversion("<");
if (tagPrefix.Length() > 0) {
aStr.Append(tagPrefix);
aStr.AppendWithConversion(":");
}
aStr.Append(tagLocalName);
// If we had to add a new namespace declaration, serialize
// and push it on the namespace stack
if (addNSAttr) {
SerializeAttr(xmlnsStr, tagPrefix, tagNamespaceURI, aStr);
PushNameSpaceDecl(tagPrefix, tagNamespaceURI, aElement);
}
#ifdef USE_NSICONTENT
if (content) {
// Now serialize each of the attributes
// XXX Unfortunately we need a namespace manager to get
// attribute URIs.
nsCOMPtr<nsIDocument> document;
nsCOMPtr<nsINameSpaceManager> nsmanager;
content->GetDocument(*getter_AddRefs(document));
if (document) {
document->GetNameSpaceManager(*getter_AddRefs(nsmanager));
}
for (index = 0; index < count; index++) {
content->GetAttributeNameAt(index,
namespaceID,
*getter_AddRefs(attrName),
*getter_AddRefs(attrPrefix));
if (attrPrefix) {
attrPrefix->ToString(prefixStr);
}
else {
prefixStr.Truncate();
}
addNSAttr = PR_FALSE;
if (kNameSpaceID_XMLNS == namespaceID) {
prefixStr.AssignWithConversion(kXMLNS);
}
else if (nsmanager) {
nsmanager->GetNameSpaceURI(namespaceID, uriStr);
addNSAttr = ConfirmPrefix(prefixStr, uriStr);
}
content->GetAttribute(namespaceID, attrName, valueStr);
attrName->ToString(nameStr);
SerializeAttr(prefixStr, nameStr, valueStr, aStr);
if (addNSAttr) {
SerializeAttr(xmlnsStr, prefixStr, uriStr, aStr);
PushNameSpaceDecl(prefixStr, uriStr, aElement);
}
}
}
#else
if (attrMap) {
// Now serialize each of the attributes
for (index = 0; index < count; index++) {
aStr.AppendWithConversion(" ");
attrMap->Item(index, getter_AddRefs(attrNode));
attrObj = do_QueryInterface(attrNode);
if (attrObj) {
attrObj->GetPrefix(prefixStr);
attrObj->GetLocalName(nameStr);
attrObj->GetNamespaceURI(uriStr);
addNSAttr = ConfirmPrefix(prefixStr, uriStr);
attrObj->GetNodeValue(valueStr);
SerializeAttr(prefixStr, nameStr, valueStr, aStr);
if (addNSAttr) {
SerializeAttr(xmlnsStr, prefixStr, uriStr, aStr);
PushNameSpaceDecl(prefixStr, uriStr, aElement);
}
}
}
}
#endif
aStr.AppendWithConversion(">");
PRBool entireDocument = PR_TRUE;
nsCOMPtr<nsIDocument> document(do_QueryInterface(aRoot));
if (!document) {
entireDocument = PR_FALSE;
nsCOMPtr<nsIDOMDocument> domDoc;
rv = aRoot->GetOwnerDocument(getter_AddRefs(domDoc));
if (NS_FAILED(rv))
return rv;
document = do_QueryInterface(domDoc);
}
}
void
nsDOMSerializer::SerializeElementEnd(nsIDOMElement* aElement, nsString& aStr)
{
if (aElement) {
nsAutoString tagPrefix, tagLocalName, tagNamespaceURI;
// This method will fail if no document
rv = encoder->Init(document,NS_LITERAL_STRING("text/xml"),nsIDocumentEncoder::OutputEncodeEntities);
if (NS_FAILED(rv))
return rv;
aElement->GetPrefix(tagPrefix);
aElement->GetLocalName(tagLocalName);
aElement->GetNamespaceURI(tagNamespaceURI);
ConfirmPrefix(tagPrefix, tagNamespaceURI);
aStr.AppendWithConversion("</");
if (tagPrefix.Length() > 0) {
aStr.Append(tagPrefix);
aStr.AppendWithConversion(":");
}
aStr.Append(tagLocalName);
aStr.AppendWithConversion(">");
PopNameSpaceDeclsFor(aElement);
nsAutoString charset;
if (aCharset) {
charset.AssignWithConversion(aCharset);
} else {
rv = document->GetDocumentCharacterSet(charset);
if (NS_FAILED(rv))
return rv;
}
}
rv = encoder->SetCharset(charset);
if (NS_FAILED(rv))
return rv;
nsresult
nsDOMSerializer::SerializeNodeStart(nsIDOMNode* aNode, nsString& aStr)
{
PRUint16 type;
aNode->GetNodeType(&type);
switch (type) {
case nsIDOMNode::ELEMENT_NODE:
{
nsCOMPtr<nsIDOMElement> element = do_QueryInterface(aNode);
SerializeElementStart(element, aStr);
break;
}
case nsIDOMNode::TEXT_NODE:
{
nsCOMPtr<nsIDOMText> text = do_QueryInterface(aNode);
SerializeText(text, aStr);
break;
}
case nsIDOMNode::CDATA_SECTION_NODE:
{
nsCOMPtr<nsIDOMCDATASection> cdata = do_QueryInterface(aNode);
SerializeCDATASection(cdata, aStr);
break;
}
case nsIDOMNode::PROCESSING_INSTRUCTION_NODE:
{
nsCOMPtr<nsIDOMProcessingInstruction> pi = do_QueryInterface(aNode);
SerializeProcessingInstruction(pi, aStr);
break;
}
case nsIDOMNode::COMMENT_NODE:
{
nsCOMPtr<nsIDOMComment> comment = do_QueryInterface(aNode);
SerializeComment(comment, aStr);
break;
}
case nsIDOMNode::DOCUMENT_TYPE_NODE:
{
nsCOMPtr<nsIDOMDocumentType> doctype = do_QueryInterface(aNode);
SerializeDoctype(doctype, aStr);
break;
// If we are working on the entire document we do not need to specify which part to serialize
if (!entireDocument) {
nsCOMPtr<nsIDOMRange> range(do_CreateInstance(kRangeCID));
rv = range->SelectNode(aRoot);
if (NS_SUCCEEDED(rv)) {
rv = encoder->SetRange(range);
}
}
return NS_OK;
}
nsresult
nsDOMSerializer::SerializeNodeEnd(nsIDOMNode* aNode, nsString& aStr)
{
PRUint16 type;
aNode->GetNodeType(&type);
switch (type) {
case nsIDOMNode::ELEMENT_NODE:
{
nsCOMPtr<nsIDOMElement> element = do_QueryInterface(aNode);
SerializeElementEnd(element, aStr);
break;
}
if (NS_SUCCEEDED(rv)) {
*aEncoder = encoder.get();
NS_ADDREF(*aEncoder);
}
return NS_OK;
}
nsresult
nsDOMSerializer::SerializeToStringRecursive(nsIDOMNode* aNode, nsString& aStr)
{
nsresult rv = SerializeNodeStart(aNode, aStr);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMNodeList> childNodes;
rv = aNode->GetChildNodes(getter_AddRefs(childNodes));
NS_ENSURE_SUCCESS(rv, rv);
if (childNodes) {
PRInt32 index, count;
childNodes->GetLength((PRUint32*)&count);
for (index = 0; index < count; index++) {
nsCOMPtr<nsIDOMNode> child;
rv = childNodes->Item(index, getter_AddRefs(child));
NS_ENSURE_SUCCESS(rv, rv);
rv = SerializeToStringRecursive(child, aStr);
NS_ENSURE_SUCCESS(rv, rv);
}
}
rv = SerializeNodeEnd(aNode, aStr);
return rv;
}
NS_IMETHODIMP
nsDOMSerializer::SerializeToString(nsIDOMNode *root, PRUnichar **_retval)
{
NS_ENSURE_ARG_POINTER(root);
NS_ENSURE_ARG_POINTER(_retval);
nsresult rv;
nsAutoString str;
*_retval = nsnull;
nsCOMPtr<nsIDocumentEncoder> encoder;
nsresult rv = SetUpEncoder(root,nsnull,getter_AddRefs(encoder));
if (NS_FAILED(rv))
return rv;
nsAutoString str;
rv = encoder->EncodeToString(str);
if (NS_FAILED(rv))
return rv;
rv = SerializeToStringRecursive(root, str);
NS_ENSURE_SUCCESS(rv, rv);
*_retval = str.ToNewUnicode();
if (nsnull == *_retval) {
if (!*_retval)
return NS_ERROR_OUT_OF_MEMORY;
}
return NS_OK;
}
static nsresult
ConvertAndWrite(nsString& aString,
nsIOutputStream* aStream,
nsIUnicodeEncoder* aEncoder)
{
NS_ENSURE_ARG_POINTER(aStream);
NS_ENSURE_ARG_POINTER(aEncoder);
nsresult rv;
PRInt32 charLength;
PRUnichar* unicodeBuf = (PRUnichar*)aString.GetUnicode();
PRInt32 unicodeLength = aString.Length();
rv = aEncoder->GetMaxLength(unicodeBuf, unicodeLength, &charLength);
if (NS_SUCCEEDED(rv)) {
nsCAutoString charXferString;
charXferString.SetCapacity(charLength);
char* charXferBuf = (char*)charXferString.GetBuffer();
rv = aEncoder->Convert(unicodeBuf, &unicodeLength, charXferBuf, &charLength);
if (NS_SUCCEEDED(rv)) {
PRUint32 written;
rv = aStream->Write(charXferBuf, charLength, &written);
}
}
return rv;
}
nsresult
nsDOMSerializer::SerializeToStreamRecursive(nsIDOMNode* aNode,
nsIOutputStream* aStream,
nsIUnicodeEncoder* aEncoder)
{
nsAutoString start;
nsresult rv = SerializeNodeStart(aNode, start);
NS_ENSURE_SUCCESS(rv, rv);
rv = ConvertAndWrite(start, aStream, aEncoder);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMNodeList> childNodes;
rv = aNode->GetChildNodes(getter_AddRefs(childNodes));
NS_ENSURE_SUCCESS(rv, rv);
if (childNodes) {
PRInt32 index, count;
childNodes->GetLength((PRUint32*)&count);
for (index = 0; index < count; index++) {
nsCOMPtr<nsIDOMNode> child;
rv = childNodes->Item(index, getter_AddRefs(child));
NS_ENSURE_SUCCESS(rv, rv);
rv = SerializeToStreamRecursive(child, aStream, aEncoder);
NS_ENSURE_SUCCESS(rv, rv);
}
}
nsAutoString end;
rv = SerializeNodeEnd(aNode, end);
NS_ENSURE_SUCCESS(rv, rv);
rv = ConvertAndWrite(end, aStream, aEncoder);
return rv;
}
NS_IMETHODIMP
nsDOMSerializer::SerializeToStream(nsIDOMNode *root,
nsIOutputStream *stream,
@ -649,24 +133,12 @@ nsDOMSerializer::SerializeToStream(nsIDOMNode *root,
NS_ENSURE_ARG_POINTER(stream);
NS_ENSURE_ARG_POINTER(charset);
nsresult rv;
nsCOMPtr<nsIUnicodeEncoder> encoder;
nsCOMPtr<nsIDocumentEncoder> encoder;
nsresult rv = SetUpEncoder(root,charset,getter_AddRefs(encoder));
if (NS_FAILED(rv))
return rv;
NS_WITH_SERVICE(nsICharsetConverterManager,
charsetConv,
kCharsetConverterManagerCID,
&rv);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoString charsetStr;
charsetStr.AssignWithConversion(charset);
rv = charsetConv->GetUnicodeEncoder(&charsetStr,
getter_AddRefs(encoder));
NS_ENSURE_SUCCESS(rv, rv);
rv = SerializeToStreamRecursive(root, stream, encoder);
return rv;
return encoder->EncodeToStream(stream);
}
static const char* kAllAccess = "AllAccess";

Просмотреть файл

@ -26,17 +26,6 @@
#include "nsIDOMSerializer.h"
#include "nsISecurityCheckedComponent.h"
#include "nsISupportsUtils.h"
#include "nsCOMPtr.h"
#include "nsVoidArray.h"
#include "nsString.h"
class nsIDOMElement;
class nsIDOMDocumentType;
class nsIDOMText;
class nsIDOMCDATASection;
class nsIDOMComment;
class nsIDOMProcessingInstruction;
class nsIUnicodeEncoder;
class nsDOMSerializer : public nsIDOMSerializer,
public nsISecurityCheckedComponent
@ -54,36 +43,6 @@ public:
const char *charset);
NS_DECL_NSISECURITYCHECKEDCOMPONENT
protected:
void SerializeText(nsIDOMText* aText, nsString& aStr);
void SerializeCDATASection(nsIDOMCDATASection* aCDATASection, nsString& aStr);
void SerializeProcessingInstruction(nsIDOMProcessingInstruction* aPI,
nsString& aStr);
void SerializeComment(nsIDOMComment* aComment, nsString& aStr);
void SerializeDoctype(nsIDOMDocumentType* aDoctype, nsString& aStr);
void PushNameSpaceDecl(nsString& aPrefix,
nsString& aURI,
nsIDOMElement* aOwner);
void PopNameSpaceDeclsFor(nsIDOMElement* aOwner);
PRBool ConfirmPrefix(nsString& aPrefix,
nsString& aURI);
void SerializeAttr(nsString& aPrefix,
nsString& aName,
nsString& aValue,
nsString& aStr);
void SerializeElementStart(nsIDOMElement* aElement, nsString& aStr);
void SerializeElementEnd(nsIDOMElement* aElement, nsString& aStr);
nsresult SerializeNodeStart(nsIDOMNode* aNode, nsString& aStr);
nsresult SerializeNodeEnd(nsIDOMNode* aNode, nsString& aStr);
nsresult SerializeToStringRecursive(nsIDOMNode* aNode, nsString& aStr);
nsresult SerializeToStreamRecursive(nsIDOMNode* aNode,
nsIOutputStream* aStream,
nsIUnicodeEncoder* aEncoder);
protected:
PRInt32 mPrefixIndex;
nsVoidArray mNameSpaceStack;
};