本文整理汇总了C++中RBuf8::Mid方法的典型用法代码示例。如果您正苦于以下问题：C++ RBuf8::Mid方法的具体用法？C++ RBuf8::Mid怎么用？C++ RBuf8::Mid使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类RBuf8的用法示例。
在下文中一共展示了RBuf8::Mid方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: ParseAppFilterStringL
// ---------------------------------------------------------------------------------
// CUpnpTmFilteredAppList::ParseAppFilterStringL
// Method parses the descriptor containing the filter string
// It parses the comma-separated list of A_ARG_TYPE_AppList schema
// elements, attributes and their values
// eg: "name="*Audio*",description="*",[email protected]="*svg+xml*", [email protected]="*",
// [email protected]="*",[email protected]="*",resourceStatus="free",signature="*""
// @param aAppFilter Buffer containing application filter string
// @param aErr[out] Terminal Mode error code
// ---------------------------------------------------------------------------------
//
void CUpnpTmFilteredAppList::ParseAppFilterStringL( const TDesC8& aAppFilter,
TTerminalModeErrorCode& aErr )
{
OstTraceFunctionEntry0( CUPNPTMFILTEREDAPPLIST_PARSEAPPFILTERSTRINGL_ENTRY );
// Validate the filter string
aErr = ETerminalModeSuccess;
TInt quotePos = aAppFilter.Locate( KQuote );
if ( ( quotePos != 0 ) || ( aAppFilter.Find(KDoubleQuote) == KErrNotFound ))
{
// corrupt filter string
aErr = ETerminalModeInvalidArgument;
OstTrace1( TRACE_ERROR, DUP2_CUPNPTMFILTEREDAPPLIST_PARSEAPPFILTERSTRINGL, "CUpnpTmFilteredAppList::ParseAppFilterStringL;quotePos=%d", quotePos );
return;
}
RBuf8 filterBuffer;
CleanupClosePushL(filterBuffer);
/* Create a buffer having the content of AppFilter buffer but without
the leading quote(") */
filterBuffer.CreateL(aAppFilter.Mid(quotePos+1));
TInt equalToQuoteToken;
while( ( equalToQuoteToken = filterBuffer.Find(Keq)) != KErrNotFound )
{
// Fetch the full key string
TPtrC8 key = filterBuffer.Left(equalToQuoteToken);
// Check for the presence of sub element by checking the @ in the key string
TInt atTokenPos = key.Find(KAtToken);
TBool displayInfo(EFalse);
if ( atTokenPos != KErrNotFound )
{
// @ is found in the key string
// Now extract the parent element
TPtrC8 parentKey = key.Left(atTokenPos);
//Remove any leading and trailing whitespaces in the parent element
const TDesC8& parentKeyWithoutSpace = RemoveWhiteSpace(parentKey);
// Check if the parent elemet is one of desired element or not.
// It should be one of the following :
// <1> icon <2> remotingInfo <3> appInfo <4> displayInfo <5> audioInfo
if ( ( parentKeyWithoutSpace.Compare(KIconElement) != KErrNone ) &&
( parentKeyWithoutSpace.Compare(KRemotingInfo) != KErrNone ) &&
( parentKeyWithoutSpace.Compare(KAppInfo) != KErrNone ) &&
( parentKeyWithoutSpace.Compare(KDisplayInfo) != KErrNone ) &&
( parentKeyWithoutSpace.Compare(KAudioInfo) != KErrNone ) )
{
// parent element is not proper
aErr = ETerminalModeInvalidArgument;
break;
}
if ( parentKeyWithoutSpace.Compare(KDisplayInfo) == KErrNone )
{
// The parent key element is displayInfo
displayInfo = ETrue;
}
// Fetch the actual key name ( child element )
key.Set(key.Mid(atTokenPos+1));
}
//Remove any leading and trailing whitespaces in the key
const TDesC8& keyWithoutSpace = RemoveWhiteSpace(key);
if ( (filterBuffer.Mid(equalToQuoteToken) ).Locate(KQuote) != 1 )
{
// Missing quote(") ahead of the value
aErr = ETerminalModeInvalidArgument;
break;
}
TPtrC8 bufPtr = filterBuffer.Mid(equalToQuoteToken+2);
quotePos = bufPtr.Locate( KQuote );
if ( quotePos == KErrNotFound )
{
// missing quote (") at the end of the value
aErr = ETerminalModeInvalidArgument;
break;
}
/* Add the filter info as key-value pairs.
// Also check if the parent key is display info.
If display info flag is true then use the method with non default parameter */
if ( displayInfo )
{
iFilterInfo->SetFilterInfoL( keyWithoutSpace, bufPtr.Left(quotePos), aErr, ETrue );
}
else
{
// Use the method with default parameter
iFilterInfo->SetFilterInfoL( keyWithoutSpace, bufPtr.Left(quotePos), aErr );
}
if ( aErr != ETerminalModeSuccess )
{
// Return the error code in case the key element is not as per the schema
aErr = ETerminalModeInvalidArgument;
//.........这里部分代码省略.........