nsresult
txBufferingHandler::characters(const nsSubstring& aData, PRBool aDOE)
{
NS_ENSURE_TRUE(mBuffer, NS_ERROR_OUT_OF_MEMORY);
mCanAddAttribute = PR_FALSE;
txOutputTransaction::txTransactionType type =
aDOE ? txOutputTransaction::eCharacterNoOETransaction
: txOutputTransaction::eCharacterTransaction;
txOutputTransaction* transaction = mBuffer->getLastTransaction();
if (transaction && transaction->mType == type) {
mBuffer->mStringValue.Append(aData);
static_cast<txCharacterTransaction*>(transaction)->mLength +=
aData.Length();
return NS_OK;
}
transaction = new txCharacterTransaction(type, aData.Length());
NS_ENSURE_TRUE(transaction, NS_ERROR_OUT_OF_MEMORY);
mBuffer->mStringValue.Append(aData);
return mBuffer->addTransaction(transaction);
}
bool
nsCoreUtils::IsWhitespaceString(const nsSubstring& aString)
{
nsSubstring::const_char_iterator iterBegin, iterEnd;
aString.BeginReading(iterBegin);
aString.EndReading(iterEnd);
while (iterBegin != iterEnd && IsWhitespace(*iterBegin))
++iterBegin;
return iterBegin == iterEnd;
}
/**
* Check for a modifier flag of the following form:
* "flag=string"
* "flag!=string"
* @param aFlag The flag to compare.
* @param aData The tokenized data to check; this is lowercased
* before being passed in.
* @param aValue The value that is expected.
* @param aResult If this is "ok" when passed in, this is left alone.
* Otherwise if the flag is found it is set to eBad or eOK.
* @return Whether the flag was handled.
*/
static bool
CheckStringFlag(const nsSubstring& aFlag, const nsSubstring& aData,
const nsSubstring& aValue, TriState& aResult)
{
if (aData.Length() < aFlag.Length() + 1) {
return false;
}
if (!StringBeginsWith(aData, aFlag)) {
return false;
}
bool comparison = true;
if (aData[aFlag.Length()] != '=') {
if (aData[aFlag.Length()] == '!' &&
aData.Length() >= aFlag.Length() + 2 &&
aData[aFlag.Length() + 1] == '=') {
comparison = false;
} else {
return false;
}
}
if (aResult != eOK) {
nsDependentSubstring testdata =
Substring(aData, aFlag.Length() + (comparison ? 1 : 2));
if (testdata.Equals(aValue)) {
aResult = comparison ? eOK : eBad;
} else {
aResult = comparison ? eBad : eOK;
}
}
return true;
}
void
mozInlineSpellWordUtil::NormalizeWord(nsSubstring& aWord)
{
nsAutoString result;
::NormalizeWord(aWord, 0, aWord.Length(), result);
aWord = result;
}
nsresult
txExprParser::createExprInternal(const nsSubstring& aExpression,
uint32_t aSubStringPos,
txIParseContext* aContext, Expr** aExpr)
{
NS_ENSURE_ARG_POINTER(aExpr);
*aExpr = nullptr;
txExprLexer lexer;
nsresult rv = lexer.parse(aExpression);
if (NS_FAILED(rv)) {
nsASingleFragmentString::const_char_iterator start;
aExpression.BeginReading(start);
aContext->SetErrorOffset(lexer.mPosition - start + aSubStringPos);
return rv;
}
nsAutoPtr<Expr> expr;
rv = createExpr(lexer, aContext, getter_Transfers(expr));
if (NS_SUCCEEDED(rv) && lexer.peek()->mType != Token::END) {
rv = NS_ERROR_XPATH_BINARY_EXPECTED;
}
if (NS_FAILED(rv)) {
nsASingleFragmentString::const_char_iterator start;
aExpression.BeginReading(start);
aContext->SetErrorOffset(lexer.peek()->mStart - start + aSubStringPos);
return rv;
}
txXPathOptimizer optimizer;
Expr* newExpr = nullptr;
rv = optimizer.optimize(expr, &newExpr);
NS_ENSURE_SUCCESS(rv, rv);
*aExpr = newExpr ? newExpr : expr.forget();
return NS_OK;
}
nsresult
txUnknownHandler::startElement(nsIAtom* aPrefix, const nsSubstring& aLocalName,
const int32_t aNsID)
{
if (!mFlushed) {
// Make sure that mEs->mResultHandler == this is true, otherwise we'll
// leak mEs->mResultHandler in createHandlerAndFlush.
NS_ASSERTION(mEs->mResultHandler == this,
"We're leaking mEs->mResultHandler.");
bool htmlRoot = aNsID == kNameSpaceID_None && !aPrefix &&
aLocalName.Equals(NS_LITERAL_STRING("html"),
txCaseInsensitiveStringComparator());
nsresult rv = createHandlerAndFlush(htmlRoot, aLocalName, aNsID);
NS_ENSURE_SUCCESS(rv, rv);
}
return mEs->mResultHandler->startElement(aPrefix, aLocalName, aNsID);
}
// This is to fix characters that the spellchecker may not like
static void
NormalizeWord(const nsSubstring& aInput, int32_t aPos, int32_t aLen, nsAString& aOutput)
{
aOutput.Truncate();
for (int32_t i = 0; i < aLen; i++) {
PRUnichar ch = aInput.CharAt(i + aPos);
// remove ignorable characters from the word
if (IsIgnorableCharacter(ch))
continue;
// the spellchecker doesn't handle curly apostrophes in all languages
if (ch == 0x2019) { // RIGHT SINGLE QUOTATION MARK
ch = '\'';
}
aOutput.Append(ch);
}
}
/**
* Check for a modifier flag of the following forms:
* "flag" (same as "true")
* "flag=yes|true|1"
* "flag="no|false|0"
* @param aFlag The flag to compare.
* @param aData The tokenized data to check; this is lowercased
* before being passed in.
* @param aResult If the flag is found, the value is assigned here.
* @return Whether the flag was handled.
*/
static bool
CheckFlag(const nsSubstring& aFlag, const nsSubstring& aData, bool& aResult)
{
if (!StringBeginsWith(aData, aFlag)) {
return false;
}
if (aFlag.Length() == aData.Length()) {
// the data is simply "flag", which is the same as "flag=yes"
aResult = true;
return true;
}
if (aData.CharAt(aFlag.Length()) != '=') {
// the data is "flag2=", which is not anything we care about
return false;
}
if (aData.Length() == aFlag.Length() + 1) {
aResult = false;
return true;
}
switch (aData.CharAt(aFlag.Length() + 1)) {
case '1':
case 't': //true
case 'y': //yes
aResult = true;
return true;
case '0':
case 'f': //false
case 'n': //no
aResult = false;
return true;
}
return false;
}
nsresult
txUnknownHandler::startElement(nsIAtom* aPrefix, const nsSubstring& aLocalName,
const PRInt32 aNsID)
{
// Make sure that mEs->mResultHandler == this is true, otherwise we'll
// leak mEs->mResultHandler in createHandlerAndFlush and we may crash
// later on trying to delete this handler again.
NS_ASSERTION(mEs->mResultHandler == this,
"We're leaking mEs->mResultHandler.");
PRBool htmlRoot = aNsID == kNameSpaceID_None && !aPrefix &&
aLocalName.Equals(NS_LITERAL_STRING("html"),
txCaseInsensitiveStringComparator());
nsresult rv = createHandlerAndFlush(htmlRoot, aLocalName, aNsID);
NS_ENSURE_SUCCESS(rv, rv);
rv = mEs->mResultHandler->startElement(aPrefix, aLocalName, aNsID);
delete this;
return rv;
}
/**
* This method gets called when a tag needs to be sent out
*
* @update gess 3/25/98
* @param
* @return result status
*/
nsresult CViewSourceHTML::WriteTag(PRInt32 aTagType,const nsSubstring & aText,PRInt32 attrCount,PRBool aTagInError) {
nsresult result=NS_OK;
// adjust line number to what it will be after we finish writing this tag
// XXXbz life here sucks. We can't use the GetNewlineCount on the token,
// because Text tokens in <style>, <script>, etc lie through their teeth.
// On the other hand, the parser messes up newline counting in some token
// types (bug 137315). So our line numbers will disagree with the parser's
// in some cases...
// XXXbenjamn Shouldn't we be paying attention to the aCountLines BuildModel
// parameter here?
mLineNumber += aText.CountChar(PRUnichar('\n'));
nsTokenAllocator* theAllocator=mTokenizer->GetTokenAllocator();
NS_ASSERTION(0!=theAllocator,"Error: no allocator");
if(0==theAllocator)
return NS_ERROR_FAILURE;
// Highlight all parts of all erroneous tags.
if (mSyntaxHighlight && aTagInError) {
CStartToken* theTagToken=
static_cast<CStartToken*>
(theAllocator->CreateTokenOfType(eToken_start,
eHTMLTag_span,
NS_LITERAL_STRING("SPAN")));
NS_ENSURE_TRUE(theTagToken, NS_ERROR_OUT_OF_MEMORY);
mErrorNode.Init(theTagToken, theAllocator);
AddAttrToNode(mErrorNode, theAllocator,
NS_LITERAL_STRING("class"),
NS_LITERAL_STRING("error"));
mSink->OpenContainer(mErrorNode);
IF_FREE(theTagToken, theAllocator);
#ifdef DUMP_TO_FILE
if (gDumpFile) {
fprintf(gDumpFile, "<span class=\"error\">");
}
#endif
}
if (kBeforeText[aTagType][0] != 0) {
NS_ConvertASCIItoUTF16 beforeText(kBeforeText[aTagType]);
mITextToken.SetIndirectString(beforeText);
nsCParserNode theNode(&mITextToken, 0/*stack token*/);
mSink->AddLeaf(theNode);
}
#ifdef DUMP_TO_FILE
if (gDumpFile && kDumpFileBeforeText[aTagType][0])
fprintf(gDumpFile, kDumpFileBeforeText[aTagType]);
#endif // DUMP_TO_FILE
if (mSyntaxHighlight && aTagType != kText) {
CStartToken* theTagToken=
static_cast<CStartToken*>
(theAllocator->CreateTokenOfType(eToken_start,
eHTMLTag_span,
NS_LITERAL_STRING("SPAN")));
NS_ENSURE_TRUE(theTagToken, NS_ERROR_OUT_OF_MEMORY);
mStartNode.Init(theTagToken, theAllocator);
AddAttrToNode(mStartNode, theAllocator,
NS_LITERAL_STRING("class"),
NS_ConvertASCIItoUTF16(kElementClasses[aTagType]));
mSink->OpenContainer(mStartNode); //emit <starttag>...
IF_FREE(theTagToken, theAllocator);
#ifdef DUMP_TO_FILE
if (gDumpFile) {
fprintf(gDumpFile, "<span class=\"");
fprintf(gDumpFile, kElementClasses[aTagType]);
fprintf(gDumpFile, "\">");
}
#endif // DUMP_TO_FILE
}
STOP_TIMER();
mITextToken.SetIndirectString(aText); //now emit the tag name...
nsCParserNode theNode(&mITextToken, 0/*stack token*/);
mSink->AddLeaf(theNode);
#ifdef DUMP_TO_FILE
if (gDumpFile) {
fputs(NS_ConvertUTF16toUTF8(aText).get(), gDumpFile);
}
#endif // DUMP_TO_FILE
if (mSyntaxHighlight && aTagType != kText) {
mStartNode.ReleaseAll();
mSink->CloseContainer(eHTMLTag_span); //emit </endtag>...
#ifdef DUMP_TO_FILE
if (gDumpFile)
fprintf(gDumpFile, "</span>");
#endif //DUMP_TO_FILE
}
if(attrCount){
result=WriteAttributes(aText, theAllocator, attrCount, aTagInError);
}
// Tokens are set in error if their ending > is not there, so don't output
// the after-text
if (!aTagInError && kAfterText[aTagType][0] != 0) {
NS_ConvertASCIItoUTF16 afterText(kAfterText[aTagType]);
mITextToken.SetIndirectString(afterText);
nsCParserNode theNode(&mITextToken, 0/*stack token*/);
mSink->AddLeaf(theNode);
}
#ifdef DUMP_TO_FILE
if (!aTagInError && gDumpFile && kDumpFileAfterText[aTagType][0])
fprintf(gDumpFile, kDumpFileAfterText[aTagType]);
#endif // DUMP_TO_FILE
if (mSyntaxHighlight && aTagInError) {
mErrorNode.ReleaseAll();
mSink->CloseContainer(eHTMLTag_span); //emit </endtag>...
#ifdef DUMP_TO_FILE
if (gDumpFile)
fprintf(gDumpFile, "</span>");
#endif //DUMP_TO_FILE
}
START_TIMER();
return result;
}
/**
* Creates an Attribute Value Template using the given value
* This should move to XSLProcessor class
*/
nsresult
txExprParser::createAVT(const nsSubstring& aAttrValue,
txIParseContext* aContext,
Expr** aResult)
{
*aResult = nullptr;
nsresult rv = NS_OK;
nsAutoPtr<Expr> expr;
FunctionCall* concat = nullptr;
nsAutoString literalString;
bool inExpr = false;
nsSubstring::const_char_iterator iter, start, end, avtStart;
aAttrValue.BeginReading(iter);
aAttrValue.EndReading(end);
avtStart = iter;
while (iter != end) {
// Every iteration through this loop parses either a literal section
// or an expression
start = iter;
nsAutoPtr<Expr> newExpr;
if (!inExpr) {
// Parse literal section
literalString.Truncate();
while (iter != end) {
PRUnichar q = *iter;
if (q == '{' || q == '}') {
// Store what we've found so far and set a new |start| to
// skip the (first) brace
literalString.Append(Substring(start, iter));
start = ++iter;
// Unless another brace follows we've found the start of
// an expression (in case of '{') or an unbalanced brace
// (in case of '}')
if (iter == end || *iter != q) {
if (q == '}') {
aContext->SetErrorOffset(iter - avtStart);
return NS_ERROR_XPATH_UNBALANCED_CURLY_BRACE;
}
inExpr = true;
break;
}
// We found a second brace, let that be part of the next
// literal section being parsed and continue looping
}
++iter;
}
if (start == iter && literalString.IsEmpty()) {
// Restart the loop since we didn't create an expression
continue;
}
newExpr = new txLiteralExpr(literalString +
Substring(start, iter));
}
else {
// Parse expressions, iter is already past the initial '{' when
// we get here.
while (iter != end) {
if (*iter == '}') {
rv = createExprInternal(Substring(start, iter),
start - avtStart, aContext,
getter_Transfers(newExpr));
NS_ENSURE_SUCCESS(rv, rv);
inExpr = false;
++iter; // skip closing '}'
break;
}
else if (*iter == '\'' || *iter == '"') {
PRUnichar q = *iter;
while (++iter != end && *iter != q) {} /* do nothing */
if (iter == end) {
break;
}
}
++iter;
}
if (inExpr) {
aContext->SetErrorOffset(start - avtStart);
return NS_ERROR_XPATH_UNBALANCED_CURLY_BRACE;
}
}
// Add expression, create a concat() call if necessary
if (!expr) {
expr = newExpr;
}
else {
if (!concat) {
concat = new txCoreFunctionCall(txCoreFunctionCall::CONCAT);
NS_ENSURE_TRUE(concat, NS_ERROR_OUT_OF_MEMORY);
rv = concat->addParam(expr.forget());
expr = concat;
NS_ENSURE_SUCCESS(rv, rv);
}
rv = concat->addParam(newExpr.forget());
NS_ENSURE_SUCCESS(rv, rv);
}
}
if (inExpr) {
aContext->SetErrorOffset(iter - avtStart);
return NS_ERROR_XPATH_UNBALANCED_CURLY_BRACE;
}
if (!expr) {
expr = new txLiteralExpr(EmptyString());
}
*aResult = expr.forget();
return NS_OK;
}
