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pjs
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bug 88952: Remove trailing content. This checkin fixes a whole slew of textarea bugs. r=jst sr=rbs

This commit is contained in:
mrbkap%gmail.com 2004-12-01 04:37:36 +00:00
Родитель a9b503e476
Коммит f404ddb2db
13 изменённых файлов: 490 добавлений и 443 удалений
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19
parser/htmlparser/public/nsHTMLTokens.h
Просмотреть файл

@ -153,7 +153,6 @@ public:
}
nsString mTextValue;
nsString mTrailingContent;
protected:
eContainerInfo mContainerInfo;
PRPackedBool mEmpty;
@ -282,9 +281,6 @@ public:
CTextToken();
CTextToken(const nsAString& aString);
virtual nsresult Consume(PRUnichar aChar,nsScanner& aScanner,PRInt32 aMode);
nsresult ConsumeUntil(PRUnichar aChar, PRBool aIgnoreComments,
nsScanner& aScanner, const nsAString& aEndTagName,
PRInt32 aFlag, PRBool& aFlushTokens);
virtual PRInt32 GetTokenType(void);
virtual PRInt32 GetTextLength(void);
virtual void CopyTo(nsAString& aStr);
@ -293,6 +289,21 @@ public:
nsScannerIterator& aEnd);
virtual void Bind(const nsAString& aStr);
nsresult ConsumeCharacterData(PRUnichar aChar,
PRBool aConservativeConsume,
PRBool aIgnoreComments,
nsScanner& aScanner,
const nsAString& aEndTagName,
PRInt32 aFlag,
PRBool& aFlushTokens);
nsresult ConsumeParsedCharacterData(PRUnichar aChar,
PRBool aConservativeConsume,
nsScanner& aScanner,
const nsAString& aEndTagName,
PRInt32 aFlag,
PRBool& aFound);
protected:
nsScannerSubstring mTextValue;
};

14
parser/htmlparser/public/nsIParser.h
Просмотреть файл

@ -310,7 +310,8 @@ class nsIParser : public nsISupports {
#define NS_ERROR_HTMLPARSER_STOPPARSING NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1015)
#define NS_ERROR_HTMLPARSER_UNTERMINATEDSTRINGLITERAL NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1016)
#define NS_ERROR_HTMLPARSER_HIERARCHYTOODEEP NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1017)
#define NS_ERROR_HTMLPARSER_FAKE_ENDTAG NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1018)
#define NS_ERROR_HTMLPARSER_INVALID_COMMENT NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1019)
#define NS_ERROR_HTMLPARSER_CONTINUE NS_OK
@ -325,6 +326,8 @@ const PRUint32 kInvalidParserContext = NS_ERROR_HTMLPARSER_INVALIDPARSERCONTEXT
const PRUint32 kBlocked = NS_ERROR_HTMLPARSER_BLOCK;
const PRUint32 kBadStringLiteral = NS_ERROR_HTMLPARSER_UNTERMINATEDSTRINGLITERAL;
const PRUint32 kHierarchyTooDeep = NS_ERROR_HTMLPARSER_HIERARCHYTOODEEP;
const PRUint32 kFakeEndTag = NS_ERROR_HTMLPARSER_FAKE_ENDTAG;
const PRUint32 kNotAComment = NS_ERROR_HTMLPARSER_INVALID_COMMENT;
const PRUnichar kNewLine = '\n';
const PRUnichar kCR = '\r';
@ -381,9 +384,10 @@ const PRUnichar kNullCh = '\0';
#define NS_IPARSER_FLAG_VIEW_NORMAL 0x00000020
#define NS_IPARSER_FLAG_VIEW_SOURCE 0x00000040
#define NS_IPARSER_FLAG_VIEW_ERRORS 0x00000080
#define NS_IPARSER_FLAG_PRESERVE_CONTENT 0x00000100
#define NS_IPARSER_FLAG_PLAIN_TEXT 0x00000200
#define NS_IPARSER_FLAG_XML 0x00000400
#define NS_IPARSER_FLAG_HTML 0x00000800
#define NS_IPARSER_FLAG_PLAIN_TEXT 0x00000100
#define NS_IPARSER_FLAG_XML 0x00000200
#define NS_IPARSER_FLAG_HTML 0x00000400
#define NS_IPARSER_FLAG_SCRIPT_ENABLED 0x00000800
#define NS_IPARSER_FLAG_FRAMES_ENABLED 0x00001000
#endif

4
parser/htmlparser/public/nsITokenizer.h
Просмотреть файл

@ -86,7 +86,6 @@ public:
NS_IMETHOD_(PRInt32) GetCount(void)=0;
NS_IMETHOD_(nsTokenAllocator*) GetTokenAllocator(void)=0;
NS_IMETHOD_(void) PrependTokens(nsDeque& aDeque)=0;
NS_IMETHOD CopyState(nsITokenizer* aTokenizer) = 0;
};
@ -101,8 +100,7 @@ public:
NS_IMETHOD_(CToken*) GetTokenAt(PRInt32 anIndex);\
NS_IMETHOD_(PRInt32) GetCount(void);\
NS_IMETHOD_(nsTokenAllocator*) GetTokenAllocator(void);\
NS_IMETHOD_(void) PrependTokens(nsDeque& aDeque);\
NS_IMETHOD CopyState(nsITokenizer* aTokenizer);
NS_IMETHOD_(void) PrependTokens(nsDeque& aDeque);
#endif

129
parser/htmlparser/src/CNavDTD.cpp
Просмотреть файл

@ -116,12 +116,10 @@ static char gShowCRC;
#define NS_DTD_FLAG_HAD_BODY 0x00000010
#define NS_DTD_FLAG_HAD_FRAMESET 0x00000020
#define NS_DTD_FLAG_ENABLE_RESIDUAL_STYLE 0x00000040
#define NS_DTD_FLAG_SCRIPT_ENABLED 0x00000100
#define NS_DTD_FLAG_FRAMES_ENABLED 0x00000200
#define NS_DTD_FLAG_ALTERNATE_CONTENT 0x00000400 // NOFRAMES, NOSCRIPT
#define NS_DTD_FLAG_MISPLACED_CONTENT 0x00000800
#define NS_DTD_FLAG_IN_MISPLACED_CONTENT 0x00001000
#define NS_DTD_FLAG_STOP_PARSING 0x00002000
#define NS_DTD_FLAG_ALTERNATE_CONTENT 0x00000080 // NOFRAMES, NOSCRIPT
#define NS_DTD_FLAG_MISPLACED_CONTENT 0x00000100
#define NS_DTD_FLAG_IN_MISPLACED_CONTENT 0x00000200
#define NS_DTD_FLAG_STOP_PARSING 0x00000400
/**
* This method gets called as part of our COM-like interfaces.
@ -384,15 +382,15 @@ nsresult CNavDTD::WillBuildModel(const CParserContext& aParserContext,
#endif
if(mSink) {
PRBool enabled;
PRBool enabled = PR_TRUE;
mSink->IsEnabled(eHTMLTag_frameset, &enabled);
if(enabled) {
mFlags |= NS_DTD_FLAG_FRAMES_ENABLED;
mFlags |= NS_IPARSER_FLAG_FRAMES_ENABLED;
}
mSink->IsEnabled(eHTMLTag_script, &enabled);
if(enabled) {
mFlags |= NS_DTD_FLAG_SCRIPT_ENABLED;
mFlags |= NS_IPARSER_FLAG_SCRIPT_ENABLED;
}
}
@ -439,7 +437,7 @@ nsresult CNavDTD::BuildModel(nsIParser* aParser,nsITokenizer* aTokenizer,nsIToke
}
// always open a body if frames are disabled....
if(!(mFlags & NS_DTD_FLAG_FRAMES_ENABLED)) {
if(!(mFlags & NS_IPARSER_FLAG_FRAMES_ENABLED)) {
theToken=NS_STATIC_CAST(CStartToken*,mTokenAllocator->CreateTokenOfType(eToken_start,eHTMLTag_body,NS_LITERAL_STRING("body")));
mTokenizer->PushTokenFront(theToken);
}
@ -522,37 +520,6 @@ CNavDTD::BuildNeglectedTarget(eHTMLTags aTarget,
NS_ASSERTION(mTokenAllocator, "unable to create tokens without an allocator.");
if (!mTokenizer || !mTokenAllocator)
return NS_OK;
if (eHTMLTag_unknown != mSkipTarget && eHTMLTag_title == aTarget) {
PRInt32 size = mSkippedContent.GetSize();
// Note: The first location of the skipped content
// deque contains the opened-skip-target. Do not include
// that when guessing title contents. The term "guessing"
// is used because the document did not contain an end title
// and hence it's almost impossible to know what markup
// should belong in the title. The assumption used here is that
// if the markup is anything other than "text", or "entity" or,
// "whitespace" then it's least likely to belong in the title.
PRInt32 index;
for (index = 1; index < size; index++) {
CHTMLToken* token =
NS_REINTERPRET_CAST(CHTMLToken*, mSkippedContent.ObjectAt(index));
NS_ASSERTION(token, "there is a null token in the skipped content list!");
eHTMLTokenTypes type = eHTMLTokenTypes(token->GetTokenType());
if (eToken_whitespace != type &&
eToken_newline != type &&
eToken_text != type &&
eToken_entity != type &&
eToken_attribute != type) {
// Now pop the tokens that do not belong ( just a guess work )
// in the title and push them into the tokens queue.
while (size != index++) {
token = NS_REINTERPRET_CAST(CHTMLToken*, mSkippedContent.Pop());
mTokenizer->PushTokenFront(token);
}
break;
}
}
}
CHTMLToken* target =
NS_STATIC_CAST(CHTMLToken*, mTokenAllocator->CreateTokenOfType(aType, aTarget));
mTokenizer->PushTokenFront(target);
@ -846,30 +813,6 @@ nsresult CNavDTD::HandleToken(CToken* aToken,nsIParser* aParser){
return result;
}
}
else if(mFlags & NS_DTD_FLAG_ALTERNATE_CONTENT) {
if(theTag != mBodyContext->Last() || theType!=eToken_end) {
// attribute source is a part of start token.
if(theType!=eToken_attribute) {
aToken->AppendSourceTo(mScratch);
}
IF_FREE(aToken, mTokenAllocator);
return result;
}
else {
// If you're here then we have either seen a /noscript,
// or /noframes, or /iframe. After handling the text token
// intentionally fall thro' to handle the current end token.
CTextToken theTextToken(mScratch);
result=HandleStartToken(&theTextToken);
if(NS_FAILED(result)) {
return result;
}
mScratch.Truncate();
mScratch.SetCapacity(0);
}
}
else if(mFlags & NS_DTD_FLAG_MISPLACED_CONTENT) {
// Included TD & TH to fix Bug# 20797
static eHTMLTags gLegalElements[]={eHTMLTag_table,eHTMLTag_thead,eHTMLTag_tbody,
@ -949,7 +892,9 @@ nsresult CNavDTD::HandleToken(CToken* aToken,nsIParser* aParser){
}
default:
if(!gHTMLElements[eHTMLTag_html].SectionContains(theTag,PR_FALSE)) {
if(!(mFlags & (NS_DTD_FLAG_HAD_BODY | NS_DTD_FLAG_HAD_FRAMESET))) {
if(!(mFlags & (NS_DTD_FLAG_HAD_BODY |
NS_DTD_FLAG_HAD_FRAMESET |
NS_DTD_FLAG_ALTERNATE_CONTENT))) {
//For bug examples from this code, see bugs: 18928, 20989.
@ -1075,28 +1020,6 @@ nsresult CNavDTD::DidHandleStartTag(nsIParserNode& aNode,eHTMLTags aChildTag){
}//if
}
break;
case eHTMLTag_xmp:
//grab the skipped content and dump it out as text...
{
STOP_TIMER()
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::DidHandleStartTag(), this=%p\n", this));
nsAutoString theString;
PRInt32 lineNo = 0;
result = CollectSkippedContent(aChildTag, theString, lineNo);
NS_ENSURE_SUCCESS(result, result);
if(0<theString.Length()) {
CTextToken *theToken=NS_STATIC_CAST(CTextToken*,mTokenAllocator->CreateTokenOfType(eToken_text,eHTMLTag_text,theString));
nsCParserNode theNode(theToken, mTokenAllocator);
result=mSink->AddLeaf(theNode); //when the node get's destructed, so does the new token
}
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::DidHandleStartTag(), this=%p\n", this));
START_TIMER()
}
break;
#ifdef DEBUG
case eHTMLTag_counter:
{
@ -2485,30 +2408,10 @@ CNavDTD::CollectSkippedContent(PRInt32 aTag, nsAString& aContent, PRInt32 &aLine
PRInt32 tagCount = mSkippedContent.GetSize();
for (i = 0; i< tagCount; ++i){
CHTMLToken* theNextToken = (CHTMLToken*)mSkippedContent.PopFront();
if (theNextToken) {
eHTMLTokenTypes theTokenType = (eHTMLTokenTypes)theNextToken->GetTokenType();
// Dont worry about attributes here because it's already stored in
// the start token as mTrailing content and will get appended in
// start token's GetSource();
if (eToken_attribute!=theTokenType) {
if ((eToken_entity==theTokenType) &&
((eHTMLTag_textarea == aTag) || (eHTMLTag_title == aTag))) {
mScratch.Truncate();
((CEntityToken*)theNextToken)->TranslateToUnicodeStr(mScratch);
if (!mScratch.IsEmpty()){
aContent.Append(mScratch);
}
else {
// We thought it was an entity but it is not! - bug 79492
aContent.Append(PRUnichar('&'));
aContent.Append(theNextToken->GetStringValue());
}
}
else theNextToken->AppendSourceTo(aContent);
}
theNextToken->AppendSourceTo(aContent);
}
IF_FREE(theNextToken, mTokenAllocator);
}
@ -3433,8 +3336,7 @@ CNavDTD::OpenContainer(const nsCParserNode *aNode,
// If the script is disabled noscript should not be
// in the content model until the layout can somehow
// turn noscript's display property to block <-- bug 67899
if(mFlags & NS_DTD_FLAG_SCRIPT_ENABLED) {
mScratch.Truncate();
if(mFlags & NS_IPARSER_FLAG_SCRIPT_ENABLED) {
mFlags |= NS_DTD_FLAG_ALTERNATE_CONTENT;
}
break;
@ -3442,8 +3344,7 @@ CNavDTD::OpenContainer(const nsCParserNode *aNode,
case eHTMLTag_iframe: // Bug 84491
case eHTMLTag_noframes:
done=PR_FALSE;
if(mFlags & NS_DTD_FLAG_FRAMES_ENABLED) {
mScratch.Truncate();
if(mFlags & NS_IPARSER_FLAG_FRAMES_ENABLED) {
mFlags |= NS_DTD_FLAG_ALTERNATE_CONTENT;
}
break;

30
parser/htmlparser/src/CParserContext.cpp
Просмотреть файл

@ -40,6 +40,7 @@
#include "CParserContext.h"
#include "nsToken.h"
#include "prenv.h"
#include "nsIHTMLContentSink.h"
#include "nsHTMLTokenizer.h"
#include "nsExpatDriver.h"
@ -169,16 +170,33 @@ void CParserContext::SetMimeType(const nsACString& aMimeType){
}
nsresult
CParserContext::GetTokenizer(PRInt32 aType, nsITokenizer*& aTokenizer) {
CParserContext::GetTokenizer(PRInt32 aType,
nsIContentSink* aSink,
nsITokenizer*& aTokenizer) {
nsresult result = NS_OK;
if(!mTokenizer) {
if (aType == NS_IPARSER_FLAG_HTML || mParserCommand == eViewSource) {
result = NS_NewHTMLTokenizer(&mTokenizer,mDTDMode,mDocType,mParserCommand);
// Propagate tokenizer state so that information is preserved
// between document.write. This fixes bug 99467
if (mTokenizer && mPrevContext)
mTokenizer->CopyState(mPrevContext->mTokenizer);
nsCOMPtr<nsIHTMLContentSink> theSink = do_QueryInterface(aSink);
PRUint16 theFlags = 0;
if (theSink) {
// XXX This code is repeated both here and in CNavDTD. Can the two
// callsites be combined?
PRBool enabled;
theSink->IsEnabled(eHTMLTag_frameset, &enabled);
if(enabled) {
theFlags |= NS_IPARSER_FLAG_FRAMES_ENABLED;
}
theSink->IsEnabled(eHTMLTag_script, &enabled);
if(enabled) {
theFlags |= NS_IPARSER_FLAG_SCRIPT_ENABLED;
}
}
result = NS_NewHTMLTokenizer(&mTokenizer,mDTDMode,mDocType,
mParserCommand,theFlags);
}
else if (aType == NS_IPARSER_FLAG_XML)
{

4
parser/htmlparser/src/CParserContext.h
Просмотреть файл

@ -76,7 +76,9 @@ public:
CParserContext( const CParserContext& aContext);
~CParserContext();
nsresult GetTokenizer(PRInt32 aType, nsITokenizer*& aTokenizer);
nsresult GetTokenizer(PRInt32 aType,
nsIContentSink* aSink,
nsITokenizer*& aTokenizer);
void SetMimeType(const nsACString& aMimeType);
nsCOMPtr<nsIRequest> mRequest; // provided by necko to differnciate different input streams

7
parser/htmlparser/src/nsElementTable.cpp
Просмотреть файл

@ -1228,9 +1228,9 @@ void InitializeElementTable(void) {
/*req-parent excl-parent*/ eHTMLTag_unknown,eHTMLTag_unknown,
/*rootnodes,endrootnodes*/ &gRootTags,&gRootTags,
/*autoclose starttags and endtags*/ 0,0,0,0,
/*parent,incl,exclgroups*/ kInlineEntity|kPreformatted, kNone, kNone,
/*parent,incl,exclgroups*/ kInlineEntity|kPreformatted, kCDATA, kNone,
/*special props, prop-range*/ kNone,kDefaultPropRange,
/*special parents,kids,skip*/ 0,0,eHTMLTag_xmp);
/*special parents,kids,skip*/ 0,0,eHTMLTag_unknown);
Initialize(
/*tag*/ eHTMLTag_text,
@ -2270,7 +2270,8 @@ PRBool nsHTMLElement::CanContain(eHTMLTags aChild,nsDTDMode aMode) const{
}
if(nsHTMLElement::IsTextTag(aChild)) {
if(nsHTMLElement::IsInlineParent(mTagID)){
// Allow <xmp> to contain text.
if(nsHTMLElement::IsInlineParent(mTagID) || CanContainType(kCDATA)){
return PR_TRUE;
}
}

6
parser/htmlparser/src/nsExpatDriver.cpp
Просмотреть файл

@ -1168,12 +1168,6 @@ nsExpatDriver::PrependTokens(nsDeque& aDeque)
}
NS_IMETHODIMP
nsExpatDriver::CopyState(nsITokenizer* aTokenizer)
{
return NS_OK;
}
NS_IMETHODIMP
nsExpatDriver::HandleToken(CToken* aToken,nsIParser* aParser)
{

185
parser/htmlparser/src/nsHTMLTokenizer.cpp
Просмотреть файл

@ -103,13 +103,14 @@ nsresult nsHTMLTokenizer::QueryInterface(const nsIID& aIID, void** aInstancePtr)
nsresult NS_NewHTMLTokenizer(nsITokenizer** aInstancePtrResult,
PRInt32 aFlag,
eParserDocType aDocType,
eParserCommands aCommand)
eParserCommands aCommand,
PRInt32 aFlags)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
nsHTMLTokenizer* it = new nsHTMLTokenizer(aFlag,aDocType,aCommand);
nsHTMLTokenizer* it = new nsHTMLTokenizer(aFlag,aDocType,aCommand,aFlags);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
@ -128,23 +129,24 @@ NS_IMPL_RELEASE(nsHTMLTokenizer)
* @param
* @return
*/
nsHTMLTokenizer::nsHTMLTokenizer(PRInt32 aParseMode,
eParserDocType aDocType,
eParserCommands aCommand) :
nsITokenizer(), mTokenDeque(0)
nsHTMLTokenizer::nsHTMLTokenizer(PRInt32 aParseMode,
eParserDocType aDocType,
eParserCommands aCommand,
PRUint16 aFlags) :
nsITokenizer(), mTokenDeque(0), mFlags(aFlags)
{
if (aParseMode==eDTDMode_full_standards ||
aParseMode==eDTDMode_almost_standards) {
mFlags = NS_IPARSER_FLAG_STRICT_MODE;
mFlags |= NS_IPARSER_FLAG_STRICT_MODE;
}
else if (aParseMode==eDTDMode_quirks) {
mFlags = NS_IPARSER_FLAG_QUIRKS_MODE;
mFlags |= NS_IPARSER_FLAG_QUIRKS_MODE;
}
else if (aParseMode==eDTDMode_autodetect) {
mFlags = NS_IPARSER_FLAG_AUTO_DETECT_MODE;
mFlags |= NS_IPARSER_FLAG_AUTO_DETECT_MODE;
}
else {
mFlags = NS_IPARSER_FLAG_UNKNOWN_MODE;
mFlags |= NS_IPARSER_FLAG_UNKNOWN_MODE;
}
if (aDocType==ePlainText) {
@ -167,7 +169,6 @@ NS_IMPL_RELEASE(nsHTMLTokenizer)
mTokenAllocator = nsnull;
mTokenScanPos = 0;
mPreserveTarget = eHTMLTag_unknown;
}
@ -311,19 +312,6 @@ void nsHTMLTokenizer::PrependTokens(nsDeque& aDeque){
}
NS_IMETHODIMP
nsHTMLTokenizer::CopyState(nsITokenizer* aTokenizer)
{
if (aTokenizer) {
mFlags &= ~NS_IPARSER_FLAG_PRESERVE_CONTENT;
mPreserveTarget =
NS_STATIC_CAST(nsHTMLTokenizer*, aTokenizer)->mPreserveTarget;
if (mPreserveTarget != eHTMLTag_unknown)
mFlags |= NS_IPARSER_FLAG_PRESERVE_CONTENT;
}
return NS_OK;
}
/**
* This is a utilty method for ScanDocStructure, which finds a given
* tag in the stack.
@ -649,10 +637,11 @@ nsresult nsHTMLTokenizer::ConsumeAttributes(PRUnichar aChar,
const nsSubstring& key=theToken->GetKey();
const nsAString& text=theToken->GetValue();
// support XML like syntax to fix bugs like 44186
if(!key.IsEmpty() && kForwardSlash==key.First() && text.IsEmpty()) {
isUsableAttr = PRBool(mFlags & NS_IPARSER_FLAG_VIEW_SOURCE); // Fix bug 103095
aToken->SetEmpty(isUsableAttr);
if(!(mFlags & NS_IPARSER_FLAG_VIEW_SOURCE)) {
// We only care about these in view-source.
isUsableAttr = PR_FALSE;
}
}
if(isUsableAttr) {
++theAttrCount;
@ -721,10 +710,6 @@ nsresult nsHTMLTokenizer::ConsumeStartTag(PRUnichar aChar,CToken*& aToken,nsScan
aToken=theAllocator->CreateTokenOfType(eToken_start,eHTMLTag_unknown);
if(aToken) {
// Save the position after '<' for use in recording traling contents. Ref: Bug. 15204.
nsScannerIterator origin;
aScanner.CurrentPosition(origin);
result= aToken->Consume(aChar,aScanner,mFlags); //tell new token to finish consuming text...
if(NS_SUCCEEDED(result)) {
@ -757,68 +742,81 @@ nsresult nsHTMLTokenizer::ConsumeStartTag(PRUnichar aChar,CToken*& aToken,nsScan
*/
if(NS_SUCCEEDED(result) && !(mFlags & NS_IPARSER_FLAG_XML)) {
CStartToken* theStartToken = NS_STATIC_CAST(CStartToken*,aToken);
//XXX - Find a better soution to record content
if(!(mFlags & NS_IPARSER_FLAG_PRESERVE_CONTENT) &&
(theTag == eHTMLTag_textarea ||
theTag == eHTMLTag_xmp ||
theTag == eHTMLTag_noscript ||
theTag == eHTMLTag_noframes)) {
NS_ASSERTION(mPreserveTarget == eHTMLTag_unknown,
"mPreserveTarget set but not preserving content?");
mPreserveTarget = theTag;
mFlags |= NS_IPARSER_FLAG_PRESERVE_CONTENT;
PRBool isCDATA = gHTMLElements[theTag].CanContainType(kCDATA);
PRBool isPCDATA = eHTMLTag_textarea == theTag ||
eHTMLTag_title == theTag;
if ((eHTMLTag_iframe == theTag && (mFlags & NS_IPARSER_FLAG_FRAMES_ENABLED)) ||
(eHTMLTag_noframes == theTag && (mFlags & NS_IPARSER_FLAG_FRAMES_ENABLED)) ||
(eHTMLTag_noscript == theTag && (mFlags & NS_IPARSER_FLAG_SCRIPT_ENABLED))) {
isCDATA = PR_TRUE;
}
if (mFlags & NS_IPARSER_FLAG_PRESERVE_CONTENT)
PreserveToken(theStartToken, aScanner, origin);
//if((eHTMLTag_style==theTag) || (eHTMLTag_script==theTag)) {
if(gHTMLElements[theTag].CanContainType(kCDATA)) {
if (isCDATA || isPCDATA) {
PRBool done = PR_FALSE;
nsDependentString endTagName(nsHTMLTags::GetStringValue(theTag));
CToken* text=theAllocator->CreateTokenOfType(eToken_text,eHTMLTag_text);
CTextToken* textToken=NS_STATIC_CAST(CTextToken*,text);
CToken* text =
theAllocator->CreateTokenOfType(eToken_text,eHTMLTag_text);
CTextToken* textToken = NS_STATIC_CAST(CTextToken*,text);
//tell new token to finish consuming text...
result=textToken->ConsumeUntil(0,theTag!=eHTMLTag_script,
aScanner,
endTagName,
mFlags,
aFlushTokens);
if (isCDATA) {
// The only tags that consume conservatively are <script> and
// <style>, the rest all consume until the end of the document.
result = textToken->ConsumeCharacterData(0,
theTag==eHTMLTag_script ||
theTag==eHTMLTag_style,
theTag!=eHTMLTag_script,
aScanner,
endTagName,
mFlags,
done);
aFlushTokens = done;
}
else if (isPCDATA) {
// Title is consumed conservatively in order to not regress
// bug 42945
result = textToken->ConsumeParsedCharacterData(0,
theTag==eHTMLTag_title,
aScanner,
endTagName,
mFlags,
done);
// Fix bug 44186
// Support XML like syntax, i.e., <script src="external.js"/> == <script src="external.js"></script>
// Note: if aFlushTokens is TRUE then we have seen an </script>
// We do NOT want to output the end token if we didn't see a
// </script> and have a preserve target. If that happens, then we'd
// be messing up the text inside the <textarea> or <xmp> or whatever
// it is.
if((!(mFlags & NS_IPARSER_FLAG_PRESERVE_CONTENT) &&
!theStartToken->IsEmpty()) || aFlushTokens) {
// Setting this would make cases like <script/>d.w("text");</script> work.
theStartToken->SetEmpty(PR_FALSE);
// do this up here so we can just add the end token later on
AddToken(text,result,&mTokenDeque,theAllocator);
// Note: we *don't* set aFlushTokens here.
}
CToken* endToken=nsnull;
// We want to do this unless result is kEOF, in which case we will
// simply unwind our stack and wait for more data anyway.
if (kEOF != result) {
AddToken(text,NS_OK,&mTokenDeque,theAllocator);
CToken* endToken = nsnull;
if (NS_SUCCEEDED(result) && aFlushTokens) {
if (NS_SUCCEEDED(result) && done) {
PRUnichar theChar;
// Get the <
result = aScanner.GetChar(theChar);
NS_ASSERTION(NS_SUCCEEDED(result) && theChar == kLessThan,
"CTextToken::ConsumeUntil is broken!");
"CTextToken::Consume*Data is broken!");
#ifdef DEBUG
// Ensure we have a /
PRUnichar tempChar; // Don't change non-debug vars in debug-only code
result = aScanner.Peek(tempChar);
NS_ASSERTION(NS_SUCCEEDED(result) && tempChar == kForwardSlash,
"CTextToken::ConsumeUntil is broken!");
"CTextToken::Consume*Data is broken!");
#endif
result = ConsumeEndTag(PRUnichar('/'),endToken,aScanner);
} else if (!(mFlags & NS_IPARSER_FLAG_VIEW_SOURCE)) {
} else if (result == kFakeEndTag &&
!(mFlags & NS_IPARSER_FLAG_VIEW_SOURCE)) {
result = NS_OK;
endToken=theAllocator->CreateTokenOfType(eToken_end,theTag,endTagName);
AddToken(endToken,result,&mTokenDeque,theAllocator);
} else if (result == kFakeEndTag) {
// If we are here, we are both faking having seen the end tag
// and are in view-source.
result = NS_OK;
}
}
else {
@ -879,15 +877,6 @@ nsresult nsHTMLTokenizer::ConsumeEndTag(PRUnichar aChar,CToken*& aToken,nsScanne
aScanner.GetChar(aChar);
}
if (NS_SUCCEEDED(result)) {
eHTMLTags theTag = (eHTMLTags)aToken->GetTypeID();
if (mPreserveTarget == theTag) {
// Target reached. Stop preserving content.
mPreserveTarget = eHTMLTag_unknown;
mFlags &= ~NS_IPARSER_FLAG_PRESERVE_CONTENT;
}
}
// Do the same thing as we do in ConsumeStartTag. Basically, if we've run
// out of room in this *section* of the document, pop all of the tokens
// we've consumed this round and wait for more data.
@ -984,6 +973,12 @@ nsresult nsHTMLTokenizer::ConsumeComment(PRUnichar aChar,CToken*& aToken,nsScann
result=aToken->Consume(aChar,aScanner,mFlags);
AddToken(aToken,result,&mTokenDeque,theAllocator);
}
if (kNotAComment == result) {
// AddToken has IF_FREE()'d our token, so...
return ConsumeText(aToken, aScanner);
}
return result;
}
@ -1109,33 +1104,3 @@ nsresult nsHTMLTokenizer::ConsumeProcessingInstruction(PRUnichar aChar,CToken*&
}
return result;
}
/**
* This method keeps a copy of contents within the start token.
* The stored content could later be used in displaying TEXTAREA,
* and also in view source.
*
* @update harishd 11/09/99
* @param aStartToken: The token whose trailing contents are to be recorded
* @param aScanner: see nsScanner.h
*
*/
void nsHTMLTokenizer::PreserveToken(CStartToken* aStartToken,
nsScanner& aScanner,
nsScannerIterator aOrigin) {
if(aStartToken) {
nsScannerIterator theCurrentPosition;
aScanner.CurrentPosition(theCurrentPosition);
nsString& trailingContent = aStartToken->mTrailingContent;
PRUint32 oldLength = trailingContent.Length();
trailingContent.SetLength(oldLength + Distance(aOrigin, theCurrentPosition));
nsWritingIterator<PRUnichar> beginWriting;
trailingContent.BeginWriting(beginWriting);
beginWriting.advance(oldLength);
copy_string( aOrigin, theCurrentPosition, beginWriting );
}
}

9
parser/htmlparser/src/nsHTMLTokenizer.h
Просмотреть файл

@ -58,7 +58,6 @@
{0xe4238ddd, 0x9eb6, 0x11d2, \
{0xba, 0xa5, 0x0, 0x10, 0x4b, 0x98, 0x3f, 0xd4 }}
/***************************************************************
Notes:
***************************************************************/
@ -74,7 +73,8 @@ public:
NS_DECL_NSITOKENIZER
nsHTMLTokenizer(PRInt32 aParseMode = eDTDMode_quirks,
eParserDocType aDocType = eHTML3_Quirks,
eParserCommands aCommand = eViewNormal);
eParserCommands aCommand = eViewNormal,
PRUint16 aPrefs = 0);
virtual ~nsHTMLTokenizer();
protected:
@ -93,8 +93,6 @@ protected:
nsresult ScanDocStructure(PRBool aIsFinalChunk);
virtual void PreserveToken(CStartToken* aStartToken, nsScanner& aScanner, nsScannerIterator aOrigin);
static void AddToken(CToken*& aToken,nsresult aResult,nsDeque* aDeque,nsTokenAllocator* aTokenAllocator);
nsDeque mTokenDeque;
@ -102,12 +100,11 @@ protected:
nsTokenAllocator* mTokenAllocator;
PRInt32 mTokenScanPos;
PRUint32 mFlags;
eHTMLTags mPreserveTarget; // Tag whose content is preserved
};
extern nsresult NS_NewHTMLTokenizer(nsITokenizer** aInstancePtrResult,
PRInt32 aMode,eParserDocType aDocType,
eParserCommands aCommand);
eParserCommands aCommand, PRInt32 aFlags);
#endif

490
parser/htmlparser/src/nsHTMLTokens.cpp
Просмотреть файл

@ -62,6 +62,138 @@ static const PRUnichar kAttributeTerminalChars[] = {
PRUnichar(0)
};
static void AppendNCR(nsSubstring& aString, PRInt32 aNCRValue);
/*
* @param aScanner -- controller of underlying input source
* @param aFlag -- If NS_IPARSER_FLAG_VIEW_SOURCE do not reduce entities...
* @return error result
*
*/
static
nsresult ConsumeEntity(nsScannerSharedSubstring& aString,
nsScanner& aScanner,
PRInt32 aFlag)
{
nsresult result=NS_OK;
PRUnichar ch;
result=aScanner.Peek(ch, 1);
if (NS_SUCCEEDED(result)) {
PRUnichar amp=0;
PRInt32 theNCRValue=0;
nsAutoString entity;
if (nsCRT::IsAsciiAlpha(ch) && !(aFlag & NS_IPARSER_FLAG_VIEW_SOURCE)) {
result=CEntityToken::ConsumeEntity(ch,entity,aScanner);
if (NS_SUCCEEDED(result)) {
theNCRValue = nsHTMLEntities::EntityToUnicode(entity);
PRUnichar theTermChar=entity.Last();
// If an entity value is greater than 255 then:
// Nav 4.x does not treat it as an entity,
// IE treats it as an entity if terminated with a semicolon.
// Resembling IE!!
nsSubstring &writable = aString.writable();
if(theNCRValue < 0 || (theNCRValue > 255 && theTermChar != ';')) {
// Looks like we're not dealing with an entity
writable.Append(kAmpersand);
writable.Append(entity);
}
else {
// A valid entity so reduce it.
writable.Append(PRUnichar(theNCRValue));
}
}
}
else if (ch==kHashsign && !(aFlag & NS_IPARSER_FLAG_VIEW_SOURCE)) {
result=CEntityToken::ConsumeEntity(ch,entity,aScanner);
if (NS_SUCCEEDED(result)) {
nsSubstring &writable = aString.writable();
if (result == NS_HTMLTOKENS_NOT_AN_ENTITY) {
// Looked like an entity but it's not
aScanner.GetChar(amp);
writable.Append(amp);
result = NS_OK; // just being safe..
}
else {
PRInt32 err;
theNCRValue=entity.ToInteger(&err,kAutoDetect);
AppendNCR(writable, theNCRValue);
}
}
}
else {
// What we thought as entity is not really an entity...
aScanner.GetChar(amp);
aString.writable().Append(amp);
}//if
}
return result;
}
/*
* This general purpose method is used when you want to
* consume attributed text value.
* Note: It also reduces entities.
*
* @param aNewlineCount -- the newline count to increment when hitting newlines
* @param aScanner -- controller of underlying input source
* @param aTerminalChars -- characters that stop consuming attribute.
* @param aAllowNewlines -- whether to allow newlines in the value.
* XXX it would be nice to roll this info into
* aTerminalChars somehow....
* @param aFlag - contains information such as |dtd mode|view mode|doctype|etc...
* @return error result
*/
static
nsresult ConsumeUntil(nsScannerSharedSubstring& aString,
PRInt32& aNewlineCount,
nsScanner& aScanner,
const nsReadEndCondition& aEndCondition,
PRBool aAllowNewlines,
PRInt32 aFlag)
{
nsresult result = NS_OK;
PRBool done = PR_FALSE;
do {
result = aScanner.ReadUntil(aString,aEndCondition,PR_FALSE);
if(NS_SUCCEEDED(result)) {
PRUnichar ch;
aScanner.Peek(ch);
if(ch == kAmpersand) {
result = ConsumeEntity(aString,aScanner,aFlag);
}
else if(ch == kCR && aAllowNewlines) {
aScanner.GetChar(ch);
result = aScanner.Peek(ch);
if (NS_SUCCEEDED(result)) {
nsSubstring &writable = aString.writable();
if(ch == kNewLine) {
writable.AppendLiteral("\r\n");
aScanner.GetChar(ch);
}
else {
writable.Append(PRUnichar('\r'));
}
++aNewlineCount;
}
}
else if(ch == kNewLine && aAllowNewlines) {
aScanner.GetChar(ch);
aString.writable().Append(PRUnichar('\n'));
++aNewlineCount;
}
else {
done = PR_TRUE;
}
}
} while (NS_SUCCEEDED(result) && !done);
return result;
}
/**************************************************************
And now for the token classes...
@ -244,15 +376,12 @@ void CStartToken::AppendSourceTo(nsAString& anOutputString){
/*
* Watch out for Bug 15204
*/
if(!mTrailingContent.IsEmpty())
anOutputString.Append(mTrailingContent);
else {
if(!mTextValue.IsEmpty())
anOutputString.Append(mTextValue);
else
anOutputString.Append(GetTagName(mTypeID));
anOutputString.Append(PRUnichar('>'));
}
if(!mTextValue.IsEmpty())
anOutputString.Append(mTextValue);
else
anOutputString.Append(GetTagName(mTypeID));
anOutputString.Append(PRUnichar('>'));
}
/*
@ -294,7 +423,7 @@ nsresult CEndToken::Consume(PRUnichar aChar, nsScanner& aScanner,PRInt32 aFlag)
// Save the original tag string if this is user-defined or if we
// are viewing source
if(eHTMLTag_userdefined==mTypeID ||
(aFlag & (NS_IPARSER_FLAG_VIEW_SOURCE | NS_IPARSER_FLAG_PRESERVE_CONTENT))) {
(aFlag & NS_IPARSER_FLAG_VIEW_SOURCE)) {
mTextValue = tagIdent.str();
}
}
@ -388,6 +517,7 @@ void CEndToken::AppendSourceTo(nsAString& anOutputString){
anOutputString.Append(mTextValue);
else
anOutputString.Append(GetTagName(mTypeID));
anOutputString.Append(PRUnichar('>'));
}
@ -498,14 +628,24 @@ nsresult CTextToken::Consume(PRUnichar aChar, nsScanner& aScanner,PRInt32 aFlag)
* Consume as much clear text from scanner as possible.
* The scanner is left on the < of the perceived end tag.
*
* @update gess 3/25/98
* @param aChar -- last char consumed from stream
* @param aConservativeConsume -- controls our handling of content with no
* terminating string.
* @param aIgnoreComments -- whether or not we should take comments into
* account in looking for the end tag.
* @param aScanner -- controller of underlying input source
* @param aEndTagname -- the terminal tag name.
* @param aFlag -- dtd modes and such.
* @param aFlushTokens -- PR_TRUE if we found the terminal tag.
* @return error result
*/
nsresult CTextToken::ConsumeUntil(PRUnichar aChar,PRBool aIgnoreComments,nsScanner& aScanner,
const nsAString& aEndTagName,PRInt32 aFlag,
PRBool& aFlushTokens){
nsresult CTextToken::ConsumeCharacterData(PRUnichar aChar,
PRBool aConservativeConsume,
PRBool aIgnoreComments,
nsScanner& aScanner,
const nsAString& aEndTagName,
PRInt32 aFlag,
PRBool& aFlushTokens) {
nsresult result=NS_OK;
nsScannerIterator theStartOffset, theCurrOffset, theTermStrPos, theStartCommentPos, theAltTermStrPos, endPos;
PRBool done=PR_FALSE;
@ -532,7 +672,9 @@ nsresult CTextToken::ConsumeUntil(PRUnichar aChar,PRBool aIgnoreComments,nsScann
// 4. Amen...If you found a terminal string and '-->'. Otherwise goto step 1.
// 5. If the end of the document is reached and if we still don't have the condition in step 4. then
// assume that the prematured terminal string is the actual terminal string and goto step 1. This
// will be our last iteration.
// will be our last iteration. If there is no premature terminal string and we're being
// conservative in our consumption (aConservativeConsume), then don't consume anything
// from the scanner. Otherwise, we consume all the way until the end (for <xmp>).
NS_NAMED_LITERAL_STRING(ltslash, "</");
const nsString theTerminalString = ltslash + aEndTagName;
@ -609,20 +751,171 @@ nsresult CTextToken::ConsumeUntil(PRUnichar aChar,PRBool aIgnoreComments,nsScann
// a) when the buffer runs out ot data.
// b) when the terminal string is not found.
if(!aScanner.IsIncremental()) {
if(theAltTermStrPos != endPos) {
if(theAltTermStrPos != endPos && aConservativeConsume) {
// If you're here it means..we hit the rock bottom and therefore switch to plan B.
theCurrOffset = theAltTermStrPos;
theLastIteration = PR_TRUE;
}
else {
else if (!aConservativeConsume) {
done = PR_TRUE; // Do this to fix Bug. 35456
result = kFakeEndTag;
aScanner.BindSubstring(mTextValue, theStartOffset, endPos.advance(-1));
aScanner.SetPosition(endPos.advance(1));
}
else {
done = PR_TRUE;
result = kFakeEndTag;
// We need to bind our value to a non-empty string.
aScanner.BindSubstring(mTextValue, theStartOffset, theStartOffset);
}
}
else {
result=kEOF;
result=kEOF;
}
}
}
return result;
}
/*
* Consume as much clear text from scanner as possible. Reducing entities.
* The scanner is left on the < of the perceived end tag.
*
* @param aChar -- last char consumed from stream
* @param aConservativeConsume -- controls our handling of content with no
* terminating string.
* @param aScanner -- controller of underlying input source
* @param aEndTagname -- the terminal tag name.
* @param aFlag -- dtd modes and such.
* @param aFlushTokens -- PR_TRUE if we found the terminal tag.
* @return error result
*/
nsresult CTextToken::ConsumeParsedCharacterData(PRUnichar aChar,
PRBool aConservativeConsume,
nsScanner& aScanner,
const nsAString& aEndTagName,
PRInt32 aFlag,
PRBool& aFound)
{
// This function is fairly straightforward except if there is no terminating
// string. If there is, we simply loop through all of the entities, reducing
// them as necessary and skipping over non-terminal strings starting with <.
// If there is *no* terminal string, then we examine aConservativeConsume.
// If we want to be conservative, we backtrack to the first place in the
// document that looked like the end of PCDATA (i.e., the first tag). This
// is for compatibility and so we don't regress bug 42945. If we are not
// conservative, then we consume everything, all the way up to the end of
// the document.
static const PRUnichar terminalChars[] = {
PRUnichar('&'), PRUnichar('<'),
PRUnichar(0)
};
static const nsReadEndCondition theEndCondition(terminalChars);
nsScannerIterator currPos,endPos,altEndPos;
PRUint32 truncPos = 0;
aScanner.CurrentPosition(currPos);
aScanner.EndReading(endPos);
altEndPos = endPos;
nsScannerSharedSubstring theContent;
PRUnichar ch = 0;
NS_NAMED_LITERAL_STRING(commentStart, "<!--");
NS_NAMED_LITERAL_STRING(ltslash, "</");
const nsString theTerminalString = ltslash + aEndTagName;
PRUint32 termStrLen = theTerminalString.Length();
PRUint32 commentStartLen = commentStart.Length();
nsresult result = NS_OK;
while (currPos != endPos) {
result = ConsumeUntil(theContent, mNewlineCount, aScanner,
theEndCondition, PR_TRUE, aFlag);
if (NS_FAILED(result)) {
if (kEOF == result && !aScanner.IsIncremental()) {
aFound = PR_TRUE; // this is as good as it gets.
result = kFakeEndTag;
if (aConservativeConsume && altEndPos != endPos) {
// We ran out of room looking for a </title>. Go back to the first
// place that looked like a tag and use that as our stopping point.
theContent.writable().Truncate(truncPos);
aScanner.SetPosition(altEndPos);
}
// else we take everything we consumed.
mTextValue.Rebind(theContent.str());
}
else {
aFound = PR_FALSE;
}
return result;
}
aScanner.CurrentPosition(currPos);
aScanner.GetChar(ch); // this character must be '&' or '<'
if (ch == kLessThan && altEndPos == endPos) {
// Keep this position in case we need it for later.
altEndPos = currPos;
truncPos = theContent.str().Length();
}
if (Distance(currPos, endPos) >= termStrLen) {
nsScannerIterator start(currPos), end(currPos);
end.advance(termStrLen);
if (CaseInsensitiveFindInReadable(theTerminalString,start,end)) {
if (end != endPos && (*end == '>' || *end == ' ' ||
*end == '\t' || *end == '\n' ||
*end == '\r' || *end == '\b')) {
aFound = PR_TRUE;
mTextValue.Rebind(theContent.str());
aScanner.SetPosition(currPos);
break;
}
}
}
// IE only consumes <!-- --> as comments in PCDATA. We'll accept a bit
// more in quirks mode, but lets ensure that this really is a comment
// start to maintain the illusion of compatability.
if (Distance(currPos, endPos) >= commentStartLen) {
nsScannerIterator start(currPos), end(currPos);
end.advance(commentStartLen);
if (CaseInsensitiveFindInReadable(commentStart,start,end)) {
CCommentToken consumer; // stack allocated.
// CCommentToken expects us to be on the '-'
aScanner.SetPosition(currPos.advance(2));
result = consumer.Consume(*currPos, aScanner, aFlag);
if (kEOF == result) {
return kEOF; // this can only happen if we're really out of space.
}
else if (kNotAComment == result) {
// Fall through and consume this as text.
aScanner.CurrentPosition(currPos);
aScanner.SetPosition(currPos.advance(1));
}
else {
consumer.AppendSourceTo(theContent.writable());
mNewlineCount += consumer.GetNewlineCount();
continue;
}
}
}
result = kEOF;
// We did not find the terminal string yet so
// include the character that stopped consumption.
theContent.writable().Append(ch);
}
return result;
}
@ -1036,10 +1329,9 @@ nsresult CCommentToken::ConsumeStrictComment(nsScanner& aScanner)
return kEOF; // not really an nsresult, but...
}
// XXX We should return kNotAComment, parse comment open as text, and parse
// the rest of the document normally. Now we ALMOST do that: <! is
// missing from the content model.
return NS_OK;
// There was no terminating string, parse this comment as text.
aScanner.SetPosition(lt);
return kNotAComment;
}
nsresult CCommentToken::ConsumeQuirksComment(nsScanner& aScanner)
@ -1435,140 +1727,6 @@ void CAttributeToken::AppendSourceTo(nsAString& anOutputString){
// anOutputString.AppendLiteral(";");
}
static void AppendNCR(nsSubstring& aString, PRInt32 aNCRValue);
/*
* @param aScanner -- controller of underlying input source
* @param aFlag -- If NS_IPARSER_FLAG_VIEW_SOURCE do not reduce entities...
* @return error result
*
*/
static
nsresult ConsumeAttributeEntity(nsScannerSharedSubstring& aString,
nsScanner& aScanner,
PRInt32 aFlag)
{
nsresult result=NS_OK;
PRUnichar ch;
result=aScanner.Peek(ch, 1);
if (NS_SUCCEEDED(result)) {
PRUnichar amp=0;
PRInt32 theNCRValue=0;
nsAutoString entity;
if (nsCRT::IsAsciiAlpha(ch) && !(aFlag & NS_IPARSER_FLAG_VIEW_SOURCE)) {
result=CEntityToken::ConsumeEntity(ch,entity,aScanner);
if (NS_SUCCEEDED(result)) {
theNCRValue = nsHTMLEntities::EntityToUnicode(entity);
PRUnichar theTermChar=entity.Last();
// If an entity value is greater than 255 then:
// Nav 4.x does not treat it as an entity,
// IE treats it as an entity if terminated with a semicolon.
// Resembling IE!!
nsSubstring &writable = aString.writable();
if(theNCRValue < 0 || (theNCRValue > 255 && theTermChar != ';')) {
// Looks like we're not dealing with an entity
writable.Append(kAmpersand);
writable.Append(entity);
}
else {
// A valid entity so reduce it.
writable.Append(PRUnichar(theNCRValue));
}
}
}
else if (ch==kHashsign && !(aFlag & NS_IPARSER_FLAG_VIEW_SOURCE)) {
result=CEntityToken::ConsumeEntity(ch,entity,aScanner);
if (NS_SUCCEEDED(result)) {
nsSubstring &writable = aString.writable();
if (result == NS_HTMLTOKENS_NOT_AN_ENTITY) {
// Looked like an entity but it's not
aScanner.GetChar(amp);
writable.Append(amp);
result = NS_OK; // just being safe..
}
else {
PRInt32 err;
theNCRValue=entity.ToInteger(&err,kAutoDetect);
AppendNCR(writable, theNCRValue);
}
}
}
else {
// What we thought as entity is not really an entity...
aScanner.GetChar(amp);
aString.writable().Append(amp);
}//if
}
return result;
}
/*
* This general purpose method is used when you want to
* consume attributed text value.
* Note: It also reduces entities within attributes.
*
* @param aNewlineCount -- the newline count to increment when hitting newlines
* @param aScanner -- controller of underlying input source
* @param aTerminalChars -- characters that stop consuming attribute.
* @param aAllowNewlines -- whether to allow newlines in the value.
* XXX it would be nice to roll this info into
* aTerminalChars somehow....
* @param aFlag - contains information such as |dtd mode|view mode|doctype|etc...
* @return error result
*/
static
nsresult ConsumeAttributeValueText(nsScannerSharedSubstring& aString,
PRInt32& aNewlineCount,
nsScanner& aScanner,
const nsReadEndCondition& aEndCondition,
PRBool aAllowNewlines,
PRInt32 aFlag)
{
nsresult result = NS_OK;
PRBool done = PR_FALSE;
do {
result = aScanner.ReadUntil(aString,aEndCondition,PR_FALSE);
if(NS_SUCCEEDED(result)) {
PRUnichar ch;
aScanner.Peek(ch);
if(ch == kAmpersand) {
result = ConsumeAttributeEntity(aString,aScanner,aFlag);
}
else if(ch == kCR && aAllowNewlines) {
aScanner.GetChar(ch);
result = aScanner.Peek(ch);
if (NS_SUCCEEDED(result)) {
nsSubstring &writable = aString.writable();
if(ch == kNewLine) {
writable.AppendLiteral("\r\n");
aScanner.GetChar(ch);
}
else {
writable.Append(PRUnichar('\r'));
}
++aNewlineCount;
}
}
else if(ch == kNewLine && aAllowNewlines) {
aScanner.GetChar(ch);
aString.writable().Append(PRUnichar('\n'));
++aNewlineCount;
}
else {
done = PR_TRUE;
}
}
} while (NS_SUCCEEDED(result) && !done);
return result;
}
/*
* This general purpose method is used when you want to
* consume a known quoted string.
@ -1609,8 +1767,8 @@ nsresult ConsumeQuotedString(PRUnichar aChar,
nsScannerIterator theOffset;
aScanner.CurrentPosition(theOffset);
result=ConsumeAttributeValueText(aString,aNewlineCount,aScanner,
*terminateCondition,PR_TRUE,aFlag);
result=ConsumeUntil(aString,aNewlineCount,aScanner,
*terminateCondition,PR_TRUE,aFlag);
if(NS_SUCCEEDED(result)) {
result = aScanner.GetChar(aChar); // aChar should be " or '
@ -1625,8 +1783,8 @@ nsresult ConsumeQuotedString(PRUnichar aChar,
theAttributeTerminator(kAttributeTerminalChars);
aString.writable().Truncate(origLen);
aScanner.SetPosition(theOffset, PR_FALSE, PR_TRUE);
result=ConsumeAttributeValueText(aString,aNewlineCount,aScanner,
theAttributeTerminator,PR_FALSE,aFlag);
result=ConsumeUntil(aString,aNewlineCount,aScanner,
theAttributeTerminator,PR_FALSE,aFlag);
if (NS_SUCCEEDED(result) && (aFlag & NS_IPARSER_FLAG_VIEW_SOURCE)) {
// Remember that this string literal was unterminated.
result = NS_ERROR_HTMLPARSER_UNTERMINATEDSTRINGLITERAL;
@ -1770,12 +1928,12 @@ nsresult CAttributeToken::Consume(PRUnichar aChar, nsScanner& aScanner,PRInt32 a
else {
static const nsReadEndCondition
theAttributeTerminator(kAttributeTerminalChars);
result=ConsumeAttributeValueText(mTextValue,
mNewlineCount,
aScanner,
theAttributeTerminator,
PR_FALSE,
aFlag);
result=ConsumeUntil(mTextValue,
mNewlineCount,
aScanner,
theAttributeTerminator,
PR_FALSE,
aFlag);
}
}//if
if (NS_OK==result) {

4
parser/htmlparser/src/nsLoggingSink.h
Просмотреть файл

@ -90,7 +90,9 @@ public:
NS_IMETHOD CloseMap();
NS_IMETHOD OpenFrameset(const nsIParserNode& aNode);
NS_IMETHOD CloseFrameset();
NS_IMETHOD IsEnabled(PRInt32 aTag, PRBool* aReturn) { return NS_OK; }
NS_IMETHOD IsEnabled(PRInt32 aTag, PRBool* aReturn)
/* Take the largest possible feature set. */
{ NS_ENSURE_ARG_POINTER(aReturn); *aReturn = PR_TRUE; return NS_OK; }
NS_IMETHOD NotifyTagObservers(nsIParserNode* aNode) { return NS_OK; }
NS_IMETHOD_(PRBool) IsFormOnStack() { return PR_FALSE; }

20
parser/htmlparser/src/nsParser.cpp
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@ -1294,7 +1294,7 @@ nsParser::WillBuildModel(nsString& aFilename)
return rv;
nsITokenizer* tokenizer;
mParserContext->GetTokenizer(mParserContext->mDTD->GetType(), tokenizer);
mParserContext->GetTokenizer(mParserContext->mDTD->GetType(), mSink, tokenizer);
return mParserContext->mDTD->WillBuildModel(*mParserContext, tokenizer, mSink);
}
@ -1355,10 +1355,6 @@ CParserContext* nsParser::PopContext()
if (mParserContext->mStreamListenerState != eOnStop) {
mParserContext->mStreamListenerState = oldContext->mStreamListenerState;
}
// Preserve tokenizer state so that information is not lost
// between document.write. This fixes bug 99467
if (mParserContext->mTokenizer)
mParserContext->mTokenizer->CopyState(oldContext->mTokenizer);
}
}
return oldContext;
@ -1644,7 +1640,6 @@ nsParser::Parse(nsIInputStream* aStream,
return result;
}
/**
* Call this method if all you want to do is parse 1 string full of HTML text.
* In particular, this method should be called by the DOM when it has an HTML
@ -1718,7 +1713,8 @@ nsParser::Parse(const nsAString& aSourceBuffer,
}
}
pc = new CParserContext(theScanner, aKey, mCommand, 0, theDTD, theStatus, aLastCall);
pc = new CParserContext(theScanner, aKey, mCommand,
0, theDTD, theStatus, aLastCall);
NS_ENSURE_TRUE(pc, NS_ERROR_OUT_OF_MEMORY);
PushContext(*pc);
@ -2010,7 +2006,7 @@ nsresult nsParser::BuildModel() {
nsresult result = NS_OK;
if (mParserContext) {
PRInt32 type = mParserContext->mDTD ? mParserContext->mDTD->GetType() : NS_IPARSER_FLAG_HTML;
mParserContext->GetTokenizer(type, theTokenizer);
mParserContext->GetTokenizer(type, mSink, theTokenizer);
}
if (theTokenizer) {
@ -2047,7 +2043,7 @@ nsresult nsParser::GetTokenizer(nsITokenizer*& aTokenizer) {
aTokenizer = nsnull;
if(mParserContext) {
PRInt32 type = mParserContext->mDTD ? mParserContext->mDTD->GetType() : NS_IPARSER_FLAG_HTML;
result = mParserContext->GetTokenizer(type, aTokenizer);
result = mParserContext->GetTokenizer(type, mSink, aTokenizer);
}
return result;
}
@ -2658,7 +2654,7 @@ PRBool nsParser::WillTokenize(PRBool aIsFinalChunk){
nsresult result = NS_OK;
if (mParserContext) {
PRInt32 type = mParserContext->mDTD ? mParserContext->mDTD->GetType() : NS_IPARSER_FLAG_HTML;
mParserContext->GetTokenizer(type, theTokenizer);
mParserContext->GetTokenizer(type, mSink, theTokenizer);
}
if (theTokenizer) {
@ -2684,7 +2680,7 @@ nsresult nsParser::Tokenize(PRBool aIsFinalChunk){
if (mParserContext) {
PRInt32 type = mParserContext->mDTD ? mParserContext->mDTD->GetType() : NS_IPARSER_FLAG_HTML;
mParserContext->GetTokenizer(type, theTokenizer);
mParserContext->GetTokenizer(type, mSink, theTokenizer);
}
if (theTokenizer) {
@ -2755,7 +2751,7 @@ PRBool nsParser::DidTokenize(PRBool aIsFinalChunk){
nsresult rv = NS_OK;
if (mParserContext) {
PRInt32 type = mParserContext->mDTD ? mParserContext->mDTD->GetType() : NS_IPARSER_FLAG_HTML;
mParserContext->GetTokenizer(type, theTokenizer);
mParserContext->GetTokenizer(type, mSink, theTokenizer);
}
if (NS_SUCCEEDED(rv) && theTokenizer) {