TPtrC NextWord(TLex& aLex)
{
aLex.SkipSpaceAndMark();
aLex.SkipCharacters();
TPtrC word(aLex.MarkedToken());
return word;
}
TPtrC LineRemainder(TLex& aLex)
{
aLex.Mark();
if (SkipTo(aLex, KNewLine) == KErrNone)
{
return aLex.MarkedToken();
}
else
{
return aLex.Remainder();
}
}
TPtrC TfrLex::GetL( TLex& aLex, const TChar aChar )
{
// Skip spaces and mark the token's start point.
aLex.SkipSpace();
TLexMark mark;
aLex.Mark(mark);
if (aLex.Peek() == '"' )
{
// Skip the " and do find next " followed by eos, space or aChar.
aLex.Inc();
TChar x;
while ( x = aLex.Get(), !x.Eos() )
{
if ( x == '"' )
{
// Found a " character - but is it the end of the token?
x = aLex.Peek(); // peek the next character
if ( x.Eos() || x.IsSpace() || x == aChar )
// End of token: return token.
return aLex.MarkedToken(mark);
}
}
// Unget and L E A V E because did not find the end " of token.
aLex.UnGetToMark(mark);
User::Leave(KErrArgument);
return aLex.MarkedToken(mark); // never reached (l e a v e).
}
else
{
// Is not a "*" token: find eos or the next space or the aChar
// and return the token.
TChar x;
while ( x = aLex.Peek(), !x.Eos() && !x.IsSpace() && x != aChar )
aLex.Inc();
return aLex.MarkedToken(mark);
}
}
void CScriptFile::FoundNewItemL(const TDesC& aText, TLex& arInput, TInt& arCurrentItemStart, CScriptSection& aSection, CScriptSectionItem*& arCurrentItem)
{
TPtrC token = arInput.MarkedToken();
ParseAndSetItemValueL(aText, arInput, arCurrentItemStart, arCurrentItem);
arInput.SkipSpaceAndMark();
arCurrentItemStart = arInput.Offset();
TPtrC itemEnd(KScriptItemEnd);
const TInt length = token.Length() - itemEnd.Length();
arCurrentItem = &aSection.ReplaceItemL(token.Left(length), KNullDesC);
}
TPtrC NextCommand(TLex& aLex)
{
TPtrC command;
if (SkipToNextCommand(aLex) == KErrNone)
{
SkipToEnd(aLex, KPartialCommandStart);
aLex.Mark();
aLex.SkipCharacters();
command.Set(aLex.MarkedToken());
}
else
{
aLex.Inc(aLex.Remainder().Length());
}
return command;
}
// -----------------------------------------------------------------------------
// CAknKeyRotatorImpl::SkipSpaces
// Goes over digits and returns that sequence.
// -----------------------------------------------------------------------------
//
TPtrC CAknKeyRotatorImpl::GetDigits( TLex& aLex )
{
// Mark current place and go over digits.
aLex.Mark();
while ( !aLex.Eos() && !IsEndOfLine( aLex.Peek() ) )
{
if ( aLex.Peek().IsDigit() )
{
aLex.Inc();
}
else
{
break;
}
}
return aLex.MarkedToken();
}
EXPORT_C TInt CScriptFile::GetNextWord(TLex& aInput, TChar aDelimiter, TPtrC& aOutput)
{
//Get to the start of the descriptor
while (!aInput.Peek().IsAlphaDigit() && aInput.Peek() != '+' && !aInput.Eos() && aInput.Peek() != aDelimiter)
aInput.Inc();
if (aInput.Eos())
return KErrNotFound;
aInput.Mark();
while (aInput.Peek() != aDelimiter && !aInput.Eos())
aInput.Inc();
aOutput.Set(aInput.MarkedToken());
if (!aInput.Eos())
aInput.SkipAndMark(1);
return KErrNone;
}
TPtrC TextToNextCommand(TLex& aLex)
{
aLex.Mark();
if (SkipToNextCommand(aLex) != KErrNone)
{
aLex.Inc(aLex.Remainder().Length());
}
TLex lex(aLex.MarkedToken());
// Strip leading white space.
while (!lex.Eos())
{
if (lex.Peek().IsSpace())
{
lex.Get();
}
else
{
break;
}
}
lex.Mark();
TInt startOffset = lex.Offset();
// Remove trailing white space.
lex.Inc(lex.Remainder().Length());
while (lex.Offset() > startOffset)
{
lex.UnGet();
if (!lex.Peek().IsSpace())
{
lex.Get();
break;
}
}
return lex.MarkedToken();
}
//
// ParseMessageL()
//
// Simple Notification:
// Looks for number of messages and "From:" field
// writes numMsg into the parsed field array, sets
// entry.iDetails to the "From:"
// Complicated Notification:
// does the above and writes everything else into
// the array....
//
void CEmailNotificationParser::ParseMessageL()
{
TBool isSimpleNotification = EFalse;
TLex tokenLex;
TPtrC fieldName;
TPtrC fieldValue;
// reset parsedfield array
for(TInt i = iParsedFieldArray->Count();--i>=0;)
(*iParsedFieldArray)[i]->SetFieldValueL(_L(""));
// Set extraction mark at first character
iSms.SkipSpaceAndMark();
if(iSms.Peek() == KCharSlash)
{
// Check first line is <header>
iSms.SkipCharacters();
if (iSms.MarkedToken() != KEmailHeader)
{
User::Leave(KBspInvalidMessage);
}
// Get <new-amount> from second line and check for terminating linefeed
iSms.SkipSpaceAndMark();
}
// Val() seeks forward from next char position, looking for valid
// digits and incrementing next char as it goes.
if (!(iSms.Val(iMessageCount) == KErrNone && iMessageCount >= 0)) // If marked token is not a valid positive integer
{
iMessageCount = 0;
User::Leave(KBspInvalidMessage);
}
else
{
fieldValue.Set(iSms.MarkedToken()); // The message count..
AddParsedFieldL(KHeaderNumberMessages, fieldValue, ETrue);
}
// Next character may now be at newline or space after integer.
// If at space, advance to newline.
while (iSms.Peek() != KCharLineFeed && !iSms.Eos())
iSms.Inc();
iSms.SkipSpaceAndMark();
// Now parse the rest of the fields, if any.
while (!iSms.Eos())
{
while (iSms.Peek() != KCharLineFeed && !iSms.Eos())
iSms.Inc(); // Skip to next delimiter
if (iSms.Eos())
break; // we've finished break out of the function
if (iSms.TokenLength() == 0)
User::Leave(KBspSmartMessageInvalidToken);
// Parsing....
tokenLex.Assign(iSms.MarkedToken()); // Assign token to a new TLex
while (tokenLex.Peek() != KCharColon && !tokenLex.Eos())
tokenLex.Inc(); // Advance to a ':'
if (tokenLex.Eos() || tokenLex.TokenLength() == 0)
User::Leave(KBspSmartMessageInvalidToken);
fieldName.Set(tokenLex.MarkedToken()); // Store (pointer to) field name
tokenLex.Inc();
//fix for DEF017686
LeaveIfEmptyFieldsL(fieldName,tokenLex);
tokenLex.SkipSpaceAndMark(); // Step past optional spaces
//fix for DEF017686
LeaveIfEmptyFieldsL(fieldName,tokenLex);
// if it's the server id field try to extract the id value
// and match to an existing email service
if(fieldName.CompareF(KHeaderServerId)==KErrNone)
{
TInt valErr = tokenLex.Val(iServerId);
if(valErr != KErrNone)
iServerId = 0;
else
GetEmailServicesL();
tokenLex.UnGetToMark();
}
fieldValue.Set(tokenLex.Remainder()); // Store (pointer to) field value
if(!isSimpleNotification)
{
AddParsedFieldL(fieldName, fieldValue, EFalse);
}
// Successfully parsed a token. Move iSms's next character past the
// (linefeed) delimiter, set the extraction mark and reiterate to
// look for next token.
iSms.SkipSpaceAndMark();
}
}
void CCommandInfoFile::ReadDetailsL(TLex& aLex, RFs& aFs, const TDesC& aFileName)
{
SkipToNextCommand(aLex); // Ignore everything before the first '==' command.
while (!aLex.Eos())
{
TLexMark mark;
aLex.Mark(mark);
TPtrC command(NextCommand(aLex));
if (command == KNullDesC)
{
// Do nothing - we're at the end of the string.
}
else if (command == KCmndName)
{
aLex.SkipSpaceAndMark();
aLex.SkipCharacters();
iName.Set(aLex.MarkedToken());
}
else if (command == KCmndShortDescription)
{
iShortDescription.Set(TextToNextCommand(aLex));
}
else if (command == KCmndLongDescription)
{
iLongDescription.Set(TextToNextCommand(aLex));
}
else if (command == KCmndSeeAlso)
{
iSeeAlso.Set(TextToNextCommand(aLex));
}
else if (command == KCmndCopyright)
{
iCopyright.Set(TextToNextCommand(aLex));
}
else if (command == KCmndSmokeTest)
{
// Hmm no easy way to get the line number we're currently on
iSmokeTestLineNumber = 1;
TLex lex(aLex);
lex.Inc(-aLex.Offset()); // Only way to put a TLex back to the beginning!
TPtrC preceding = lex.Remainder().Left(aLex.Offset());
const TUint16* ptr = preceding.Ptr();
const TUint16* end = ptr + preceding.Length();
while (ptr != end)
{
if (*ptr++ == '\n') iSmokeTestLineNumber++;
}
// At this point iSmokeTestLineNumber points to the "==smoketest" line - add 2 to skip this line and the blank line below it
iSmokeTestLineNumber += 2;
iSmokeTest.Set(TextToNextCommand(aLex));
}
else if (command == KCmndArgument)
{
ReadArgumentL(aLex, aFileName);
}
else if (command == KCmndOption)
{
ReadOptionL(aLex, aFileName);
}
else if (command == KCmndInclude)
{
if (iParent == NULL)
{
iProcessInclude = EFalse;
TLex lineLex(LineRemainder(aLex));
TPtrC fileName(NextWord(lineLex));
TFileName2* fullFileName = new(ELeave) TFileName2(aFileName);
CleanupStack::PushL(fullFileName);
fullFileName->SetNameAndExtL(fileName);
ReadFileL(aFs, *fullFileName);
CleanupStack::PopAndDestroy(fullFileName);
break;
}
else
{
// We're a sub-command. Let control return to the root to handle the include.
aLex.UnGetToMark(mark);
iParent->ProcessInclude(*this);
break;
}
}
else if (command == KCmndSubCommand)
{
if (iParent == NULL)
{
TLex lineLex(LineRemainder(aLex));
AddSubCommandL(lineLex, aLex, aFs, aFileName);
}
else
{
// We're a sub-command. Let control return to the root to handle the next sub-command.
aLex.UnGetToMark(mark);
iParent->ProcessNewChild();
break;
}
}
else
{
StaticLeaveIfErr(KErrArgument, _L("Unknown command \"%S\" in \"%S\""), &command, &aFileName);
}
}
}
/**
Search fixed start URLs, i.e. URLs without schema (www., wap.).
Also finds IPv4 addresses (*.*.*.*).
As a special case, supports deprecated hardcoded schematic addresses finding
(http://, https://, rtsp://) to make sure deprecated search cases work
as they did previously.
@param aText Text that will be parsed
@param aFindFixedSchemas If true, will find old fixed schematic URLs also
@return ETrue if any URL are found else returns EFalse
@leave KErrNone, if successful; otherwise one of the other system-wide error codes.
@panic ETulPanicDescriptorLength in debug build if item's position and/or length is out of the document's range.
*/
TBool CTulAddressStringTokenizer::SearchUrlL( const TDesC& aText, const TBool aFindFixedSchemas )
{
TLex text = aText;
while ( !text.Eos() )
{
while( !(text.Eos()) && !IsValidUrlChar( text.Peek() ) )
text.Inc();
text.Mark();
while( !(text.Eos()) && IsValidUrlChar( text.Peek() ) )
text.Inc();
TPtrC tokenPtr = text.MarkedToken();
TBool wasValidUrl = EFalse;
if ( aFindFixedSchemas ) // Search for http://
wasValidUrl = ParseUrlL( KHttpUrlAddress, tokenPtr, text.Offset() );
if (aFindFixedSchemas && !wasValidUrl) // Search for https://
wasValidUrl = ParseUrlL( KHttpsUrlAddress, tokenPtr, text.Offset() );
if (aFindFixedSchemas && !wasValidUrl) // Search for rtsp://
wasValidUrl = ParseUrlL( KRtspUrlAddress, tokenPtr, text.Offset() );
if ( !wasValidUrl ) // Search for www.
wasValidUrl = ParseUrlL( KWwwUrlAddress, tokenPtr, text.Offset() );
if ( !wasValidUrl ) // Search for wap.
wasValidUrl = ParseUrlL( KWapUrlAddress, tokenPtr, text.Offset() );
if ( !wasValidUrl ) // Search for IP-address (xxx.xxx.xxx.xxx)
{
if ( tokenPtr.Match( KIPAddress ) != KErrNotFound )
{
TInt periods = 0;
wasValidUrl = ETrue;
TBool endWithPunctuation = EFalse;
TBool betweenBrackets = EFalse;
// First see if token ends with ",",".","!","?",";" or ":"
TChar charac = tokenPtr[tokenPtr.Length() - 1];
TChar charac0 = tokenPtr[0];
if ( charac == ',' || charac == '.' ||
charac == '!' || charac == '?' ||
charac == ';' || charac == ':' )
{
endWithPunctuation = ETrue;
}
// Or if it starts and ends with brackets or quotation marks
else if ( ( charac0 == '(' && charac == ')' )
|| ( charac0 == '"' && charac == '"' )
|| ( charac0 == '[' && charac == ']' )
|| ( charac0 == '<' && charac == '>' ) )
{
betweenBrackets = ETrue;
}
TInt i = 0;
TInt tokensEnd = tokenPtr.Length();
if ( endWithPunctuation )
tokensEnd--;
else if ( betweenBrackets )
{
i = 1;
tokensEnd--;
}
// Take a closer look to see if a valid IP-address
TBuf<3> ipPart;
TInt numbers = 0;
for ( ; i < tokensEnd; i++ )
{
if ( !( ((TChar)tokenPtr[i]).IsDigit() || tokenPtr[i] == '.' ) )
{
wasValidUrl = EFalse;
break;
}
if ( tokenPtr[i] == '.' )
periods++;
else
numbers++;
if ( numbers > KNumbersInIpAddress || periods > KDotsInIpAddress )
{
wasValidUrl = EFalse;
break;
}
if ( ((TChar)tokenPtr[i]).IsDigit() )
{
ipPart.Append( tokenPtr[i] );
TBool checkInt = EFalse;
if ( i + 1 < tokensEnd )
{
if ( tokenPtr[i+1] == '.' )
checkInt = ETrue;
}
if ( i == tokensEnd - 1 || checkInt )
{
TLex val = ipPart;
TInt numberInt;
TInt error = val.Val( numberInt );
if ( error != KErrNone || numberInt > 255 )
{
wasValidUrl = EFalse;
break;
}
numbers = 0;
ipPart.Delete( 0, ipPart.Length() );
}
}
}
if ( wasValidUrl && periods == KDotsInIpAddress )
{
TInt startPos = text.Offset() - tokenPtr.Length();
TInt length = tokenPtr.Length();
// If there was a punctuation at the end or brackets, let's take it/them away
if ( endWithPunctuation || betweenBrackets)
{
length--;
if ( betweenBrackets )
{
startPos++;
length--;
}
}
__ASSERT_DEBUG( startPos + length <= aText.Length(), Panic(ETulPanicDescriptorLength) );
AddItemL( startPos, length, EFindItemSearchURLBin );
}
}
}
}
return (iFoundItems->Count() > 0);
}
/**
Search algorithm for searching phone numbers
@param aText Text that will be parsed
@return ETrue if any Phone Number items were found else returns EFalse
@leave KErrNone, if successful; otherwise one of the other system-wide error codes.
@panic ETulPanicDescriptorLength in debug build if item's position
and/or length is out of the document's range.
*/
TBool CTulAddressStringTokenizer::SearchPhoneNumberL( const TDesC& aText )
{
TLexMark startMark; // Points to the start of the found phone number
TLexMark endMark; // Points to the end of the found phone number
TLexMark mark;
const TInt end = aText.Length();
TLex number = aText;
while ( !(number.Eos()) )
{
TInt numberCount = 0; // How many real numbers (1234567890)
TInt bracketsOpen = 0; // How many brackets are currently open
TInt brackets = 0; // How many brackets overall
TChar charac = number.Peek();
while( (!(IsValidPhoneNumberChar( charac ) || charac == '+'
|| charac == '(' ) || charac == '-' || charac == '.' || charac == '/')
&& !(number.Eos()) && number.Offset() < end )
{
number.Inc();
charac = number.Peek();
}
if ( number.Offset() >= end )
break;
if ( number.Peek() == '#' )
{
number.Inc();
if (number.Peek() == '.' )
continue;
number.UnGet();
}
if ( number.Peek() == '+' )
{ // '+' has to be followed by a number (not # or * ...)
number.Inc();
if ( !(number.Peek().IsDigit()) )
continue;
number.UnGet();
}
if ( number.Peek() == '(' )
{ // '(' has to be followed by valid phone number
// character (whitespaces are allowed before) or '+' is a next character
number.Inc();
if ( !(number.Peek() == '+') )
{
number.Mark(mark);
number.SkipSpace();
charac = number.Peek();
if ( !( IsValidPhoneNumberChar(charac) || charac == '+'
|| charac == '(' ) || charac == '-' || charac == '.' || charac == '/')
{
number.Inc();
continue;
}
else
{
number.UnGetToMark(mark);
number.UnGet();
number.Mark(startMark);
}
}
else
{
number.UnGet();
number.Mark(startMark);
number.Inc();
}
bracketsOpen++;
brackets++;
}
else
number.Mark(startMark);
if ( number.Peek().IsDigit() ) // If the character was a number
numberCount++;
else if ( bracketsOpen > 0 )
{
number.Inc();
TChar next = number.Peek();
TInt bracketsOpen2 = bracketsOpen;
while( (IsValidPhoneNumberChar( next ) || next.IsSpace()
|| next == '(' || next == ')' || next == 'p' || next == '+'
|| next == 'w' ) && !(number.Eos()) && number.Offset() < end)
{
if ( next == '(' )
bracketsOpen2++;
else if ( next == ')' )
bracketsOpen2--;
if ( bracketsOpen2 == 0 )
break;
number.Inc();
next = number.Peek();
}
number.UnGetToMark(startMark);
if ( bracketsOpen2 != 0 )
{
number.Inc();
continue;
}
}
number.Inc();
while ( number.Peek() == '(' && !(number.Eos()) && bracketsOpen > 0 )
{
number.Inc();
bracketsOpen++;
}
if ( number.Peek() == '+' && bracketsOpen > 0 )
number.Inc();
// a Valid first character has been found. Let's go forward as long as valid characters are found.
charac = number.Peek();
while( (IsValidPhoneNumberChar( charac ) || charac.IsSpace()
|| charac == '(' || charac == ')' || charac == 'p'
|| charac == 'w' ) && !(number.Eos()) && number.Offset() < end
&& charac != KCharLinefeed && charac != KCharFormfeed
&& charac != KCharCarriageReturn
&& charac != KCharLineSeparator
&& charac != KCharParagraphSeparator )
{
if ( number.Peek() == '(' )
{ // '(' can't be the last character in phone number
number.Mark(mark);
number.Inc();
TChar spaceJump = number.Peek();
while ( !number.Eos() && spaceJump.IsSpace() && spaceJump != KCharLinefeed
&& spaceJump != KCharFormfeed && spaceJump != KCharCarriageReturn
&& charac != KCharLineSeparator && spaceJump != KCharParagraphSeparator)
{
number.Inc();
spaceJump = number.Peek();
}
if ( !(IsValidPhoneNumberChar(number.Peek())) && number.Peek() != ')'
&& number.Peek() != '(' )
{
number.UnGetToMark(mark);
break;
}
TChar next = number.Peek();
TInt bracketsOpen2 = bracketsOpen + 1;
while( (IsValidPhoneNumberChar( next ) || next.IsSpace()
|| next == '(' || next == ')' || next == 'p'
|| next == 'w' ) && !(number.Eos()) && number.Offset() < end)
{
if ( next == '(' )
bracketsOpen2++;
else if ( next == ')' )
bracketsOpen2--;
if ( bracketsOpen2 == 0 )
break;
number.Inc();
next = number.Peek();
}
number.UnGetToMark(mark);
if ( bracketsOpen2 != 0 )
break;
bracketsOpen++;
brackets++;
}
else if ( number.Peek() == ')' )
{
if ( bracketsOpen <= 0 ) // there has to be equal number of brackets
break;
bracketsOpen--;
number.Mark(mark);
number.Inc();
if ( number.Peek() == '.' ) // '.' is not allowed after ')'
break;
number.UnGetToMark(mark);
}
else if ( number.Peek() == '-' || number.Peek() == 'w'
|| number.Peek() == 'p' || number.Peek() == '.' || number.Peek() == '/')
{ // Hyphen mark and 'p' & 'w' chars must be followed by a number
TChar last = number.Peek();
number.Mark(mark);
number.Inc();
TChar spaceJump = number.Peek();
while ( !number.Eos() && spaceJump.IsSpace() && spaceJump != KCharLinefeed
&& spaceJump != KCharFormfeed && spaceJump != KCharCarriageReturn
&& charac != KCharLineSeparator && spaceJump != KCharParagraphSeparator )
{
number.Inc();
spaceJump = number.Peek();
}
if ( !(number.Peek().IsDigit()) )
{
if (last == '.' && number.Peek() == ')' && bracketsOpen > 0 )
continue;
else
{
number.UnGetToMark(mark);
break;
}
}
number.UnGetToMark(mark);
}
else if ( number.Peek().IsDigit() )
numberCount++;
number.Inc();
charac = number.Peek();
}
// Get rid of whitespaces from the end
number.UnGet();
while( number.Peek().IsSpace() && !(number.Eos()))
number.UnGet();
number.Inc();
// ------------------------------------
number.Mark(endMark);
// If they exist, remove brackets from the beginning and the end
number.Mark(mark); // Let's mark where to continue the search
TBool endBrackets = ETrue;
do
{
number.UnGet();
if ( number.Peek() == ')' )
{
number.UnGetToMark(startMark);
if ( number.Peek() == '(' )
{
// If there's more than one pair of brackets -> don't strip them.
if ( brackets > 1 )
break;
number.Inc();
number.Mark(startMark);
number.UnGetToMark(endMark);
number.UnGet();
number.Mark(endMark);
// Get rid of whitespaces and periods from the end and from the beginning
number.UnGet();
while ( (number.Peek().IsSpace() || number.Peek() == '.')
&& number.Offset() > number.MarkedOffset(startMark) )
{ // from the end
number.UnGet();
}
number.Inc();
number.Mark(endMark);
number.UnGetToMark(startMark);
while ( (number.Peek().IsSpace() || number.Peek() == '.')
&& number.Offset() < number.MarkedOffset(endMark) )
{ // from the beginning
number.Inc();
}
number.Mark(startMark);
number.UnGetToMark(endMark);
// ----
}
else
endBrackets = EFalse;
}
else
endBrackets = EFalse;
}
while ( endBrackets );
number.UnGetToMark(mark);
// ----------------
if ( numberCount <= KFindItemMaxNumbers && numberCount >= iMinNumbers )
{
TPtrC tokenPtr = number.MarkedToken(startMark);
TInt tokensEnd = tokenPtr.Length();
TInt numbers = 0;
TInt partialNumber = 0;
TBool wasValidPhoneNumber = ETrue;
TInt i = 0;
for ( ; i < tokensEnd; i++ )
{
if ( tokenPtr[i] == '.' )
partialNumber = 0;
else if ( ((TChar)tokenPtr[i]).IsDigit() )
{
numbers++;
partialNumber++;
}
if ( ( partialNumber == 1 || partialNumber == 2 ) && i + 1 < tokensEnd )
{
if ( tokenPtr[i + 1] == '.' )
wasValidPhoneNumber = EFalse;
}
}
if (!wasValidPhoneNumber && numbers > 6)
wasValidPhoneNumber = ETrue;
if (wasValidPhoneNumber)
{
__ASSERT_DEBUG( number.MarkedOffset(startMark) + number.MarkedOffset(endMark)
- number.MarkedOffset(startMark) <= aText.Length(),
Panic(ETulPanicDescriptorLength) );
AddItemL( number.MarkedOffset(startMark),
number.MarkedOffset(endMark) - number.MarkedOffset(startMark),
EFindItemSearchPhoneNumberBin );
}
}
}
return (iFoundItems->Count() > 0);
}
/**
Search algorithm for searching generic URIs
@param aText Text that will be parsed
@return ETrue if any generic URI is found else returns EFalse
@leave KErrNone, if successful; otherwise one of the other system-wide error codes.
*/
TBool CTulAddressStringTokenizer::SearchGenericUriL( const TDesC& aText )
{
// Detect generic URI within the token
const TDesC& schemeStartArray = KURISchemeStartCharacters;
const TDesC& schemeBodyArray = KURISchemeBodyCharacters;
const TDesC& schemeTerminatorArray = KURISchemeTerminator;
const TDesC& URIArray = KURICharacters;
TBool wasValidUri = EFalse;
TLex text = aText;
while ( !text.Eos() )
{
// Discard characters until URI scheme terminator is found
while( !(text.Eos()) && schemeTerminatorArray.Locate(text.Peek()) == KErrNotFound )
text.Inc();
// if at end of the text, no legit URI found
if ( !text.Eos() )
{
// Store the schema end offset (+1 to skip ':')
TInt schemeEndOffset = text.Offset() + 1;
// Scheme must be at least 1 character long at the beginning of the text to be valid
if ( text.Offset() > 0 )
{
// Un-get last scheme character to begin examination
text.UnGet();
// Rewind until beginning of the URI
while ( text.Offset() > 0 && schemeBodyArray.Locate(text.Peek().GetLowerCase()) != KErrNotFound )
text.UnGet();
// Now text pointer is at first character of the URI
// Do go back through the scheme until a legal beginning character for URI
// is found or back to the (schemeEndOffset - 1) i.e. URI scheme terminator
while ( schemeStartArray.Locate(text.Peek().GetLowerCase()) == KErrNotFound && (text.Offset() + 1) < schemeEndOffset )
text.Inc();
// check if terminated because a valid start character was found when
// scheme terminator was reached.
if ( schemeStartArray.Locate(text.Peek().GetLowerCase()) != KErrNotFound )
{
// First character is a valid URI char, so the scheme is valid ->
// marks the beginning of the array
text.Mark();
// fast forward to the end of the scheme
while( text.Offset() < schemeEndOffset )
text.Inc();
// Get characters until end of schema
while( !(text.Eos()) && URIArray.Locate( text.Peek().GetLowerCase() ) != KErrNotFound )
text.Inc();
// remove certain punctuation from end of the URI, as it is likely
// to be part of the surrounding text.
text.UnGet();
//special processing for bracket
//only remove the end bracket if there is no open bracket in the uri
//not counting bracket pairs for efficiency
if (text.Peek()!=')' || text.MarkedToken().Locate(TChar('('))!=-1)
text.Inc();
text.UnGet();
if ( text.Peek() != '.' && text.Peek() != '?' && text.Peek() != ',')
text.Inc();
// URI cannot contain only scheme, so check that pointer was increased
// by at least one character
if ( schemeEndOffset != text.Offset() )
{
// Append found text to item array (it is now known to be
// syntactically valid URI as it contains characters after the scheme)
AddItemL( text.MarkedOffset(), text.Offset() - text.MarkedOffset(), EFindItemSearchScheme );
wasValidUri = ETrue;
}
}
else // First character of scheme is not legit, fast forward to end of the
// scheme anyway to continue search
{
while( text.Offset() < schemeEndOffset )
text.Inc();
}
}
else
text.Inc();
}
}
return wasValidUri;
}