// ---------------------------------------------------------------------------
// SdpUtil::ChopElementsFromLineL
// Chops all the elements that are divided by delimiter from the string
// ---------------------------------------------------------------------------
//
void SdpUtil::ChopElementsFromLineL(
RArray<TPtrC8>& aArray,
TLex8& aLexer,
TChar aDelimiter,
TInt aErrCode )
{
// Chop the elements to the array from lexer
TBool eofcFound = EFalse;
while (!eofcFound)
{
aLexer.Mark();
// Parse single token, leave other special characters
// to token except aDelimiter | '\r' | '\n' | '\0'
while ( aLexer.Peek() != aDelimiter &&
aLexer.Peek() != KCRChar &&
aLexer.Peek() != KLFChar &&
aLexer.Peek() != KEofChar )
{
aLexer.Inc();
}
if ( aLexer.MarkedToken().Length() > 0 )
{
aArray.AppendL( aLexer.MarkedToken() );
}
if ( aDelimiter == KSPChar &&
aLexer.Peek() == aDelimiter )
{
SkipSpacesUntilNextLineBreak( aLexer );
}
// Check if its end-of-line
if ( aLexer.Peek() == KCRChar )
{
aLexer.Inc();
}
if ( aLexer.Peek() == KLFChar )
{
aLexer.Inc();
if ( aLexer.Peek() != KEofChar )
{
User::Leave( aErrCode );
}
eofcFound = ETrue;
}
else if ( aLexer.Peek() == KEofChar )
{
// EoF character not tolerated at the middle of the string
User::Leave( aErrCode );
}
else
{
aLexer.Inc();
}
}
}
// -----------------------------------------------------------------------------
// CWPPushMessage::GetTokenText
// -----------------------------------------------------------------------------
//
TPtrC8 CWPPushMessage::GetTokenText( TLex8& aPointer ) const
{
// Token text is just characters with an end-of-string marker.
aPointer.Mark();
while( !aPointer.Eos() && aPointer.Get() != EKeyNull )
{
// Do nothing
}
return aPointer.MarkedToken();
}
// -----------------------------------------------------------------------------
// CWPPushMessage::GetTextString
// -----------------------------------------------------------------------------
//
TPtrC8 CWPPushMessage::GetTextString( TLex8& aPointer ) const
{
// Text-string can be quoted.
if( aPointer.Peek() == KQuotedTextStringStart )
{
aPointer.Inc();
}
aPointer.Mark();
while( aPointer.Get() != EKeyNull )
{
// Nothing
}
// We don't want to have NULL in the resulting descriptor, so
// back that out.
aPointer.UnGet();
TPtrC8 result( aPointer.MarkedToken() );
aPointer.Inc();
return result;
}
// -----------------------------------------------------------------------------
// CWPPushMessage::GetTextValue
// -----------------------------------------------------------------------------
//
TPtrC8 CWPPushMessage::GetTextValue( TLex8& aPointer ) const
{
// Text-value can be quoted, so skip that first.
if( aPointer.Peek() == KQuotedStringStart )
{
aPointer.Inc();
}
aPointer.Mark();
// It is null-terminated
while( aPointer.Get() != EKeyNull )
{
// Do nothing
}
// We don't want to have NULL in the resulting descriptor, so
// back that out.
TPtrC8 result( aPointer.MarkedToken() );
result.Set( result.Left( Max( 0, result.Length()-1 ) ) );
return result;
}
// -----------------------------------------------------------------------------
// SdpUtil::GetElementsFromLineL
// Gets all the elements from a single line
// -----------------------------------------------------------------------------
//
RArray<TPtrC8> SdpUtil::GetElementsFromLineL(
TLex8& aLexer,
TChar aDelimiter,
TInt aErrCode )
{
RArray<TPtrC8> lineArray;
CleanupClosePushL( lineArray );
// Header is special case, because it is joined _without_
// space character with the first attribute, so it must be
// parsed separately
aLexer.Mark();
// curChar must be != KEqualChar at first comparison
for ( TChar curChar( KSPChar ); curChar != KEqualChar; )
{
curChar = aLexer.Peek();
// Syntax check
if ( curChar == KEofChar || curChar == KLFChar ||
curChar == KCRChar )
{
User::Leave( aErrCode );
}
aLexer.Inc();
}
// Append header to array
User::LeaveIfError( lineArray.Append( aLexer.MarkedToken() ) );
// Whitespace MUST NOT be used after the "=" sign
if (aLexer.Peek() == KSPChar)
{
User::Leave( aErrCode );
}
// Get the other elements from the string to the array
ChopElementsFromLineL( lineArray, aLexer, aDelimiter, aErrCode );
CleanupStack::Pop(); // lineArray
return lineArray;
}
void CDomainNameCodec::EncodeL(TDomainNameArray& aNames, RBuf8& aBuf8)
{
TUint requiredLength = 0;
TUint8 nameIdx = 0;
for (nameIdx=0;nameIdx<aNames.Count();nameIdx++)
{
// The total length required for the labels that comprise an
// individual domain name needs to take into the length octet
// for the initial label and the null-termination character.
// Hence the '+ 2' below.
requiredLength += (aNames[nameIdx].Length() + 2);
// A further length check is performed on each domain name to
// ensure it does not exceed the maximum length permitted according
// to RFC 1035.
if(aNames[nameIdx].Length() > KMaxDomainNameLength)
{
User::Leave(KErrArgument);
}
}
aBuf8.Zero();
aBuf8.ReAllocL(requiredLength);
TLex8 domainName;
TPtrC8 currentLabel;
for (nameIdx=0;nameIdx<aNames.Count();nameIdx++)
{
domainName.Assign(aNames[nameIdx]);
domainName.Mark();
while (!domainName.Eos())
{
TChar ch;
do
{
ch = domainName.Get();
}
while ( ch != TChar('.') && !domainName.Eos() );
// if not the end of the string, unget the previous char to skip the trailing
// dot in our marked token
//
if( !domainName.Eos() )
{
domainName.UnGet();
}
currentLabel.Set(domainName.MarkedToken());
// move past the dot again, or do nothing in particular at EOS
//
domainName.Get();
User::LeaveIfError(currentLabel.Length() > KMaxDnsLabelLength ?
KErrArgument : KErrNone);
aBuf8.Append(TChar(currentLabel.Length()));
aBuf8.Append(currentLabel);
domainName.Mark();
}
aBuf8.Append(TChar(0));
}
}
