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// Copyright (c) 1994-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// e32\euser\us_des.cpp
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//
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//
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#include "us_std.h"
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// Terrible hack. Surely we should use VA_START instead of the below?
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#if defined(__EABI__) || (defined(__X86__) && defined(__GCC32__))
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#define EABI_STYLE_VA_LISTS
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#endif
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const TInt KNoPrecision=-1;
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const TInt KDefaultPrecision=6;
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const TInt KMaxRealWidth=0x20;
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// TFormatedText8 and TFormatedText16
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class TFormatedText8
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{
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public:
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TBuf8<0x40> iBuffer;
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const TUint8* iText;
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TInt iTextLength;
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TInt iWidth;
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TAlign iJustify;
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TChar iFill;
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};
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class TFormatedText16
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{
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public:
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TBuf16<0x40> iBuffer;
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const TUint16* iText;
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TInt iTextLength;
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TInt iWidth;
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TAlign iJustify;
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TChar iFill;
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};
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// TPanicker8 and TPanicker16
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class TPanicker8
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{
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public:
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static inline void Panic_BadFormatDescriptor() {Panic(ETDes8BadFormatDescriptor);}
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static inline void Panic_BadFormatParams() {Panic(ETDes8BadFormatParams);}
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};
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class TPanicker16
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{
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public:
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static inline void Panic_BadFormatDescriptor() {Panic(ETDes16BadFormatDescriptor);}
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static inline void Panic_BadFormatParams() {Panic(ETDes16BadFormatParams);}
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};
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// TFormatDirective
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class TFormatDirective // basically a sort of array of parameters where the size of each parameter is stored (no more than 4 parameters are possible per format-directive) - it also knows whether the format directive it represents has an explicit index, and if so, what that index is
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{
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public:
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inline TFormatDirective() :iSizesOfParametersInBytes(0), iFormatDirectiveIndex(EImplicitFormatDirectiveIndex) {}
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void AppendParameter(TInt aSizeOfParameterInBytes,TInt aParameterAlignment);
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inline void FormatDirectiveHasExplicitIndex(TInt aFormatDirectiveIndex) {iFormatDirectiveIndex=aFormatDirectiveIndex;}
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private:
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friend class TParameterManager;
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private:
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enum {EImplicitFormatDirectiveIndex=-1};
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enum
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{
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EShiftToNumberOfParameters=28,
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ENumberOfBitsPerParameter=5,
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EMaskForSingleParameter=(1<<ENumberOfBitsPerParameter)-1,
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EMaskForAlignmentShift=3,
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EMaskForParameterSize=EMaskForSingleParameter&~EMaskForAlignmentShift,
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EMaximumNumberOfParameters=EShiftToNumberOfParameters/ENumberOfBitsPerParameter
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};
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private: // these functions are used by the TParameterManager class
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inline TInt NumberOfParameters() const {return iSizesOfParametersInBytes>>EShiftToNumberOfParameters;}
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TInt SizeOfParameter(TInt aIndex) const;
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TUint8* CalculateDataPointer(const TUint8* aDataPtr,TInt aIndex) const;
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private:
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TUint iSizesOfParametersInBytes; // a compactly stored array
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TInt iFormatDirectiveIndex;
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};
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void TFormatDirective::AppendParameter(TInt aSizeOfParameterInBytes, TInt aParameterAlignment)
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{
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const TInt numberOfParameters=NumberOfParameters();
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__ASSERT_DEBUG(numberOfParameters<EMaximumNumberOfParameters, Panic(ENumberOfParametersExceedsMaximum));
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__ASSERT_DEBUG((aSizeOfParameterInBytes&EMaskForParameterSize)==aSizeOfParameterInBytes, Panic(ESizeOfParameterTooBig));
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iSizesOfParametersInBytes+=(1<<EShiftToNumberOfParameters); // increment the count
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switch(aParameterAlignment)
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{
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case 4:
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// aSizeOfParameterInBytes |= 0;
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break;
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case 8:
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aSizeOfParameterInBytes |= 1;
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break;
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default:
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__ASSERT_DEBUG(0, Panic(EUnexpectedError3));
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}
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iSizesOfParametersInBytes|=(aSizeOfParameterInBytes<<(numberOfParameters*ENumberOfBitsPerParameter)); // store aSizeOfParameterInBytes
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}
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TInt TFormatDirective::SizeOfParameter(TInt aIndex) const
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{
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__ASSERT_DEBUG(aIndex<NumberOfParameters(), Panic(EParameterIndexOutOfRange1));
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return (iSizesOfParametersInBytes>>(aIndex*ENumberOfBitsPerParameter))&EMaskForParameterSize;
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}
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TUint8* TFormatDirective::CalculateDataPointer(const TUint8* aDataPtr,TInt aIndex) const
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{
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TInt numParams = NumberOfParameters();
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__ASSERT_DEBUG(aIndex<=numParams, Panic(EParameterIndexOutOfRange1));
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TInt paramInfo = iSizesOfParametersInBytes;
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while(numParams--)
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{
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TInt alignMask = (4<<(paramInfo&EMaskForAlignmentShift))-1;
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aDataPtr = (TUint8*)(((TInt)aDataPtr+alignMask)&~alignMask);
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if(!aIndex--)
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break;
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aDataPtr += paramInfo&EMaskForParameterSize;
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paramInfo >>= ENumberOfBitsPerParameter;
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}
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return const_cast<TUint8*>(aDataPtr);
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}
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// TParameterManager
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class TParameterManager
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{
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public:
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TParameterManager();
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void AddFormatDirective(const TFormatDirective& aFormatDirective);
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TInt PrepareToExtractNextParameter(VA_LIST aList); // returns either KErrNone or KErrNotReady
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void PrepareToExtractParameters(VA_LIST aList);
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TInt ExtractParameter(TAny* aTarget, TInt aSizeOfParameterInBytes, TInt aFormatDirectiveIndex, TInt aParameterIndexWithinFormatDirective, const TFormatDirective* aNextFormatDirective);
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private:
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enum
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{
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EMaximumNumberOfFormatDirectives=40,
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ENumberOfBytesInBitArray=(EMaximumNumberOfFormatDirectives+7)/8
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};
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private:
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inline TBool FormatDirectiveIsSet(TInt aIndex) const {return iFormatDirectivesSet[aIndex/8]&(1<<(aIndex%8));}
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inline void MarkFormatDirectiveAsSet(TInt aIndex) {iFormatDirectivesSet[aIndex/8]|=(1<<(aIndex%8)); __ASSERT_DEBUG(FormatDirectiveIsSet(aIndex), Panic(EFormatDirectiveAlreadySet1));}
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private:
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TInt iNumberOfFormatDirectives;
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TFixedArray<TUint8, ENumberOfBytesInBitArray> iFormatDirectivesSet;
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TFixedArray<TFormatDirective, EMaximumNumberOfFormatDirectives> iFormatDirectives;
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TFixedArray<const TUint8*, EMaximumNumberOfFormatDirectives> iFormatDirectiveDataPointers;
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};
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TParameterManager::TParameterManager()
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:iNumberOfFormatDirectives(0)
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{
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TInt i;
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for (i=0; i<ENumberOfBytesInBitArray; ++i)
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{
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iFormatDirectivesSet[i]=0;
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}
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for (i=0; i<EMaximumNumberOfFormatDirectives; ++i)
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{
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iFormatDirectiveDataPointers[i]=NULL;
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}
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}
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void TParameterManager::AddFormatDirective(const TFormatDirective& aFormatDirective)
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{
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__ASSERT_ALWAYS(iNumberOfFormatDirectives<EMaximumNumberOfFormatDirectives, Panic(ENumberOfFormatDirectivesExceedsMaximum));
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const TInt index=(aFormatDirective.iFormatDirectiveIndex>=0)? aFormatDirective.iFormatDirectiveIndex: iNumberOfFormatDirectives;
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__ASSERT_ALWAYS(!FormatDirectiveIsSet(index), Panic(EFormatDirectiveAlreadySet2));
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MarkFormatDirectiveAsSet(index);
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iFormatDirectives[index]=aFormatDirective;
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++iNumberOfFormatDirectives;
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}
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TInt TParameterManager::PrepareToExtractNextParameter(VA_LIST aList)
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{
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if (iNumberOfFormatDirectives==0)
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{
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#ifdef EABI_STYLE_VA_LISTS
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// NB under the EABI we are passing va_list (a struct) by value.
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// We could extract the pointer using aList.__ap under RVCT, but I don't believe the EABI
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// extends to the name of the field. So I think the 'nasty' cast is likely to be more
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// portable.
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const TUint8 ** aL = (const TUint8**)&aList;
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iFormatDirectiveDataPointers[iNumberOfFormatDirectives] = aL[0];
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#else
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// The horrible cast is there because you can't assume aList is of 'array' type
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iFormatDirectiveDataPointers[iNumberOfFormatDirectives] = (const TUint8*)(*(TInt*)aList);
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#endif
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}
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else
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{
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const TInt previousFormatDirective=iNumberOfFormatDirectives-1;
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const TUint8* dataPointer=iFormatDirectiveDataPointers[previousFormatDirective];
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if ((dataPointer==NULL) || !FormatDirectiveIsSet(previousFormatDirective))
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{
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return KErrNotReady;
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}
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const TFormatDirective& formatDirective=iFormatDirectives[previousFormatDirective];
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dataPointer = formatDirective.CalculateDataPointer(dataPointer,formatDirective.NumberOfParameters());
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iFormatDirectiveDataPointers[iNumberOfFormatDirectives]=dataPointer;
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}
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return KErrNone;
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}
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void TParameterManager::PrepareToExtractParameters(VA_LIST aList)
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{
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#ifdef EABI_STYLE_VA_LISTS
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// NB under the EABI we are passing va_list (a struct) by value.
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// We could extract the pointer using aList.__ap under RVCT, but I don't believe the EABI
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// extends to the name of the field. So I think the 'nasty' cast is likely to be more
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// portable.
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const TUint8 ** aL = (const TUint8**)&aList;
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const TUint8* dataPointer = aL[0];
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#else
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// The horrible cast is there because you can't assume aList is of 'array' type
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const TUint8* dataPointer = (const TUint8*)(*(TInt*)aList);
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#endif
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if (iNumberOfFormatDirectives>0)
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{
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for (TInt i=0; ; ++i)
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{
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__ASSERT_ALWAYS(FormatDirectiveIsSet(i), Panic(EFormatDirectiveNotYetSet));
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__ASSERT_DEBUG((iFormatDirectiveDataPointers[i]==NULL) || (iFormatDirectiveDataPointers[i]==dataPointer), Panic(EBadFormatDirectiveDataPointer));
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iFormatDirectiveDataPointers[i]=dataPointer;
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if (i+1>=iNumberOfFormatDirectives)
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{
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break;
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}
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const TFormatDirective& formatDirective=iFormatDirectives[i];
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dataPointer = formatDirective.CalculateDataPointer(dataPointer,formatDirective.NumberOfParameters());
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}
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}
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}
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TInt TParameterManager::ExtractParameter(TAny* aTarget, TInt aSizeOfParameterInBytes, TInt aFormatDirectiveIndex, TInt aParameterIndexWithinFormatDirective, const TFormatDirective* aNextFormatDirective)
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{
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__ASSERT_DEBUG(aFormatDirectiveIndex<EMaximumNumberOfFormatDirectives, Panic(EFormatDirectiveIndexOutOfRange));
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const TFormatDirective* formatDirective=NULL;
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if (aFormatDirectiveIndex<iNumberOfFormatDirectives)
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{
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if (!FormatDirectiveIsSet(aFormatDirectiveIndex))
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{
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return KErrNotReady;
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}
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formatDirective=&iFormatDirectives[aFormatDirectiveIndex];
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}
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else
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{
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__ASSERT_DEBUG(aNextFormatDirective!=NULL, Panic(ENotOnFirstPassOfFormatDescriptor1)); // the above condition (aFormatDirectiveIndex>=iNumberOfFormatDirectives) can only be the case on a first pass of the format descriptor, so assert that we're on the first pass
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if (aFormatDirectiveIndex>iNumberOfFormatDirectives)
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{
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return KErrNotReady;
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}
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formatDirective=aNextFormatDirective;
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}
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__ASSERT_DEBUG(aSizeOfParameterInBytes==formatDirective->SizeOfParameter(aParameterIndexWithinFormatDirective), Panic(EInconsistentSizeOfParameter));
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const TUint8* dataPointer=iFormatDirectiveDataPointers[aFormatDirectiveIndex];
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if (dataPointer==NULL)
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{
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__ASSERT_DEBUG(aNextFormatDirective!=NULL, Panic(ENotOnFirstPassOfFormatDescriptor2)); // the above condition (dataPointer==NULL) can only be the case on a first pass of the format descriptor, so assert that we're on the first pass
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return KErrNotReady;
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}
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__ASSERT_DEBUG(aParameterIndexWithinFormatDirective<formatDirective->NumberOfParameters(), Panic(EParameterIndexOutOfRange2));
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dataPointer = formatDirective->CalculateDataPointer(dataPointer,aParameterIndexWithinFormatDirective);
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Mem::Copy(aTarget, dataPointer, aSizeOfParameterInBytes);
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return KErrNone;
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}
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// TParameterHandler
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class TParameterHandler
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{
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public:
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enum TAction
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{
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EParameterNotExtracted,
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EParameterExtracted
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};
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public:
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inline TParameterHandler(TInt aImplicitFormatDirectiveIndex, TParameterManager& aParameterManager, TFormatDirective& aFormatDirective) :iFormatDirectiveIndex(aImplicitFormatDirectiveIndex), iParameterIndex(0), iFormatDirective(&aFormatDirective), iParameterManager(aParameterManager) {} // for the first pass
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inline TParameterHandler(TInt aImplicitFormatDirectiveIndex, TParameterManager& aParameterManager) :iFormatDirectiveIndex(aImplicitFormatDirectiveIndex), iParameterIndex(0), iFormatDirective(NULL), iParameterManager(aParameterManager) {} // for the second pass
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TAction HandleParameter(TAny* aTarget, TInt aSizeOfParameterInBytes, TInt aParameterAlignment=4);
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void FormatDirectiveHasExplicitIndex(TInt aFormatDirectiveIndex);
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private:
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TInt iFormatDirectiveIndex;
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TInt iParameterIndex;
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TFormatDirective* iFormatDirective;
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TParameterManager& iParameterManager;
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};
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TParameterHandler::TAction TParameterHandler::HandleParameter(TAny* aTarget, TInt aSizeOfParameterInBytes, TInt aParameterAlignment)
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// Increments iParameterIndex each time it is called.
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// This is conceptually a sort of virtual function (i.e. it's behaviour depends on the way the object was constructed), although it is not implemented like that.
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{
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__ASSERT_DEBUG(aTarget!=NULL, Panic(ENullTargetPointer));
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__ASSERT_DEBUG(aSizeOfParameterInBytes>=0, Panic(ENegativeSizeOfParameter));
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const TUint machineWordAlignmentConstant=sizeof(TUint)-1;
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aSizeOfParameterInBytes+=machineWordAlignmentConstant;
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aSizeOfParameterInBytes&=~machineWordAlignmentConstant;
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if (iFormatDirective!=NULL)
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{
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iFormatDirective->AppendParameter(aSizeOfParameterInBytes,aParameterAlignment);
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}
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const TInt error=iParameterManager.ExtractParameter(aTarget, aSizeOfParameterInBytes, iFormatDirectiveIndex, iParameterIndex, iFormatDirective);
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#if defined(_DEBUG)
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if (iFormatDirective==NULL) // if we're on the second pass...
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{
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__ASSERT_DEBUG(error==KErrNone, Panic(EErrorOnSecondPassOfFormatDescriptor));
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}
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else
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{
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__ASSERT_DEBUG(error==KErrNone || error==KErrNotReady, Panic(EUnexpectedError1));
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}
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#endif
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++iParameterIndex;
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return (error==KErrNone)? EParameterExtracted: EParameterNotExtracted;
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}
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void TParameterHandler::FormatDirectiveHasExplicitIndex(TInt aFormatDirectiveIndex)
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{
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if (iFormatDirective!=NULL)
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{
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iFormatDirective->FormatDirectiveHasExplicitIndex(aFormatDirectiveIndex);
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}
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iFormatDirectiveIndex=aFormatDirectiveIndex;
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}
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template <class XDesC, class XFormatedText, class XLex, class XPanicker, TInt XItemSize>
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void HandleFormatDirective(TParameterHandler& aParameterHandler, XFormatedText& aFormatedText, XLex& aFmt)
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//
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// Handle a single format directive, i.e. sequence starting with a '%', (although the initial '%' will have been consumed by this point).
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//
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{
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// Determine alignment of various types on the stack. The FOFF approach
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// does not work for GCC 3.4.4 on X86 so we use hardcoded constants instead.
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#if defined(__GCC32__) && defined(__X86__)
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const TInt KAlignTReal = 4;
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const TInt KAlignTRealX = 4;
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const TInt KAlignTInt64 = 4;
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#else
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struct TReal_align {char c; TReal a;};
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const TInt KAlignTReal = _FOFF(TReal_align,a);
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|
365 |
#ifndef __VC32__ // MSVC generates an internal compiler error with the following code
|
|
366 |
struct TRealX_align {char c; TRealX a;};
|
|
367 |
const TInt KAlignTRealX = _FOFF(TRealX_align,a);
|
|
368 |
|
|
369 |
struct TInt64_align {char c; TInt64 a;};
|
|
370 |
const TInt KAlignTInt64 = _FOFF(TInt64_align,a);
|
|
371 |
#else
|
|
372 |
const TInt KAlignTRealX = 4; // Hard code value for MSVC
|
|
373 |
const TInt KAlignTInt64 = 4; // Hard code value for MSVC
|
|
374 |
#endif
|
|
375 |
#endif
|
|
376 |
|
|
377 |
aFormatedText.iJustify=ERight; // Default is justify right
|
|
378 |
aFormatedText.iFill=KNoChar; // Default fill character is space
|
|
379 |
// After a % may come +,-,= or space
|
|
380 |
if (aFmt.Eos())
|
|
381 |
XPanicker::Panic_BadFormatDescriptor();
|
|
382 |
TChar c=aFmt.Get();
|
|
383 |
|
|
384 |
if (c=='$')
|
|
385 |
{
|
|
386 |
TInt formatDirectiveIndex;
|
|
387 |
if (aFmt.Val(formatDirectiveIndex)!=0)
|
|
388 |
XPanicker::Panic_BadFormatDescriptor();
|
|
389 |
aParameterHandler.FormatDirectiveHasExplicitIndex(formatDirectiveIndex-1);
|
|
390 |
if (aFmt.Get()!='$')
|
|
391 |
XPanicker::Panic_BadFormatDescriptor();
|
|
392 |
c=aFmt.Get();
|
|
393 |
}
|
|
394 |
|
|
395 |
switch (c)
|
|
396 |
{
|
|
397 |
case ' ':
|
|
398 |
aFormatedText.iFill=' ';
|
|
399 |
break;
|
|
400 |
case '-':
|
|
401 |
aFormatedText.iJustify=ELeft;
|
|
402 |
goto getFill;
|
|
403 |
case '=':
|
|
404 |
aFormatedText.iJustify=ECenter;
|
|
405 |
goto getFill;
|
|
406 |
case '+':
|
|
407 |
getFill:
|
|
408 |
if (aFmt.Eos())
|
|
409 |
XPanicker::Panic_BadFormatDescriptor();
|
|
410 |
if (!aFmt.Peek().IsDigit())
|
|
411 |
{
|
|
412 |
aFormatedText.iFill=aFmt.Get(); // assigning aFormatedText.iFill to something other than KNoChar is necessary as the aParameterHandler.HandleParameter call a couple of lines below will not necessarily set its first parameter (i.e. aFormatedText.iFill) - aFormatedText.iFill is tested against KNoChar ten or so lines below
|
|
413 |
if (aFormatedText.iFill=='*') // If* take it from the arguments
|
|
414 |
aParameterHandler.HandleParameter(&aFormatedText.iFill, sizeof(TUint));
|
|
415 |
}
|
|
416 |
break;
|
|
417 |
default:
|
|
418 |
aFmt.UnGet();
|
|
419 |
}
|
|
420 |
|
|
421 |
aFormatedText.iWidth=KDefaultJustifyWidth; // Default width is whatever the conversion takes
|
|
422 |
if (aFmt.Peek().IsDigit())
|
|
423 |
{
|
|
424 |
// If it starts with 0 and the fill character has not been
|
|
425 |
// specified then the fill character will be a 0
|
|
426 |
// For compatibility with standard C libraries
|
|
427 |
if (aFmt.Peek()=='0' && aFormatedText.iFill==KNoChar)
|
|
428 |
{
|
|
429 |
aFormatedText.iFill='0';
|
|
430 |
aFmt.Inc();
|
|
431 |
}
|
|
432 |
if (aFmt.Peek()!='*')
|
|
433 |
if (aFmt.Val(aFormatedText.iWidth)) // Convert field width value
|
|
434 |
XPanicker::Panic_BadFormatDescriptor();
|
|
435 |
}
|
|
436 |
if (aFmt.Peek()=='*' && aFormatedText.iWidth==KDefaultJustifyWidth) // If a * then get width from arguments
|
|
437 |
{
|
|
438 |
aParameterHandler.HandleParameter(&aFormatedText.iWidth, sizeof(TInt));
|
|
439 |
aFmt.Inc();
|
|
440 |
}
|
|
441 |
// Get precision setting if given
|
|
442 |
TInt precision=KNoPrecision;
|
|
443 |
if (aFmt.Peek()=='.')
|
|
444 |
{
|
|
445 |
aFmt.Inc();
|
|
446 |
if (aFmt.Peek()=='*')
|
|
447 |
{
|
|
448 |
aParameterHandler.HandleParameter(&precision, sizeof(TInt));
|
|
449 |
aFmt.Inc();
|
|
450 |
}
|
|
451 |
else if (aFmt.Val(precision))
|
|
452 |
XPanicker::Panic_BadFormatDescriptor();
|
|
453 |
}
|
|
454 |
if (aFormatedText.iFill==KNoChar) // If still default fill character make it space
|
|
455 |
aFormatedText.iFill=' ';
|
|
456 |
if (aFmt.Eos())
|
|
457 |
XPanicker::Panic_BadFormatDescriptor();
|
|
458 |
TChar selector;
|
|
459 |
TBool lng=EFalse;
|
|
460 |
TCharUC f=aFmt.Peek();
|
|
461 |
if (f=='L') // If l set selector for longs
|
|
462 |
{
|
|
463 |
aFmt.Inc();
|
|
464 |
lng=ETrue;
|
|
465 |
}
|
|
466 |
selector=aFmt.Get(); // Get the selector in upper case
|
|
467 |
aFormatedText.iText=aFormatedText.iBuffer.Ptr();
|
|
468 |
aFormatedText.iTextLength=1;
|
|
469 |
TRadix radix=EDecimal;
|
|
470 |
TUint uVal=0;
|
|
471 |
TReal rVal=0;
|
|
472 |
TRealX rValX=0;
|
|
473 |
TInt realFormatType=KRealFormatFixed;
|
|
474 |
switch (selector)
|
|
475 |
{
|
|
476 |
case 'S': // String conversion
|
|
477 |
{
|
|
478 |
const XDesC* pB;
|
|
479 |
if (aParameterHandler.HandleParameter(&pB, sizeof(const TAny*))==TParameterHandler::EParameterExtracted)
|
|
480 |
{
|
|
481 |
__ASSERT_DEBUG(pB!=0,XPanicker::Panic_BadFormatParams());
|
|
482 |
aFormatedText.iTextLength=pB->Length();
|
|
483 |
if (precision!=KNoPrecision && precision<aFormatedText.iTextLength)
|
|
484 |
aFormatedText.iTextLength=precision;
|
|
485 |
aFormatedText.iText=pB->Ptr();
|
|
486 |
}
|
|
487 |
}
|
|
488 |
break;
|
|
489 |
case 's':
|
|
490 |
if (aParameterHandler.HandleParameter(&aFormatedText.iText, sizeof(const TAny*))==TParameterHandler::EParameterExtracted)
|
|
491 |
{
|
|
492 |
__ASSERT_DEBUG(aFormatedText.iText!=0,XPanicker::Panic_BadFormatParams());
|
|
493 |
if (precision!=KNoPrecision)
|
|
494 |
aFormatedText.iTextLength=precision;
|
|
495 |
else
|
|
496 |
aFormatedText.iTextLength=User::StringLength(aFormatedText.iText);
|
|
497 |
}
|
|
498 |
break;
|
|
499 |
case 'O':
|
|
500 |
case 'o':
|
|
501 |
radix=EOctal;
|
|
502 |
goto lConv;
|
|
503 |
case 'X':
|
|
504 |
case 'x':
|
|
505 |
radix=EHex;
|
|
506 |
goto lConv;
|
|
507 |
case 'B': // Binary conversion
|
|
508 |
case 'b':
|
|
509 |
radix=EBinary;
|
|
510 |
// Fall-through to lConv
|
|
511 |
case 'U':
|
|
512 |
case 'u':
|
|
513 |
lConv:
|
|
514 |
if (lng)
|
|
515 |
{
|
|
516 |
TInt64 uVal64 = 0;
|
|
517 |
if (aParameterHandler.HandleParameter(&uVal64, sizeof(TInt64), KAlignTInt64)==TParameterHandler::EParameterExtracted)
|
|
518 |
{
|
|
519 |
if (selector=='X')
|
|
520 |
aFormatedText.iBuffer.NumUC(uVal64,radix);
|
|
521 |
else
|
|
522 |
aFormatedText.iBuffer.Num(uVal64,radix);
|
|
523 |
}
|
|
524 |
}
|
|
525 |
else
|
|
526 |
{
|
|
527 |
if (aParameterHandler.HandleParameter(&uVal, sizeof(TUint))==TParameterHandler::EParameterExtracted)
|
|
528 |
{
|
|
529 |
if (selector=='X')
|
|
530 |
aFormatedText.iBuffer.NumUC(uVal,radix);
|
|
531 |
else
|
|
532 |
aFormatedText.iBuffer.Num(uVal,radix);
|
|
533 |
}
|
|
534 |
}
|
|
535 |
aFormatedText.iTextLength=aFormatedText.iBuffer.Length();
|
|
536 |
break;
|
|
537 |
case 'D': // Decimal conversion
|
|
538 |
case 'd':
|
|
539 |
case 'I':
|
|
540 |
case 'i':
|
|
541 |
if (lng)
|
|
542 |
{
|
|
543 |
TInt64 iVal64=0;
|
|
544 |
if (aParameterHandler.HandleParameter(&iVal64, sizeof(TInt64),KAlignTInt64)==TParameterHandler::EParameterExtracted)
|
|
545 |
{
|
|
546 |
aFormatedText.iBuffer.Num(iVal64);
|
|
547 |
}
|
|
548 |
}
|
|
549 |
else
|
|
550 |
{
|
|
551 |
TInt iVal=0;
|
|
552 |
if (aParameterHandler.HandleParameter(&iVal, sizeof(TInt))==TParameterHandler::EParameterExtracted)
|
|
553 |
{
|
|
554 |
aFormatedText.iBuffer.Num(iVal);
|
|
555 |
}
|
|
556 |
}
|
|
557 |
aFormatedText.iTextLength=aFormatedText.iBuffer.Length();
|
|
558 |
break;
|
|
559 |
case 'P': // Padded conversion
|
|
560 |
case 'p':
|
|
561 |
aFormatedText.iTextLength=0;
|
|
562 |
break;
|
|
563 |
case 'C':
|
|
564 |
case 'c': // Ascii character conversion
|
|
565 |
if (aParameterHandler.HandleParameter(&uVal, sizeof(TUint))==TParameterHandler::EParameterExtracted)
|
|
566 |
{
|
|
567 |
aFormatedText.iBuffer.Append(uVal);
|
|
568 |
}
|
|
569 |
break;
|
|
570 |
case 'W': // SLONG binary lsb first conversion
|
|
571 |
case 'M': // SLONG binary msb first conversion
|
|
572 |
if (aParameterHandler.HandleParameter(&uVal, sizeof(TUint))!=TParameterHandler::EParameterExtracted)
|
|
573 |
{
|
|
574 |
break;
|
|
575 |
}
|
|
576 |
aFormatedText.iTextLength=4/XItemSize;
|
|
577 |
goto doBinary;
|
|
578 |
case 'w': // SWORD binary lsb first conversion
|
|
579 |
case 'm': // SWORD binary msb first conversion
|
|
580 |
if (aParameterHandler.HandleParameter(&uVal, sizeof(TUint))!=TParameterHandler::EParameterExtracted)
|
|
581 |
{
|
|
582 |
break;
|
|
583 |
}
|
|
584 |
aFormatedText.iTextLength=2/XItemSize;
|
|
585 |
//goto doBinary;
|
|
586 |
doBinary:
|
|
587 |
{
|
|
588 |
TUint8* pC;
|
|
589 |
TInt increment;
|
|
590 |
if (selector=='m' || selector=='M')
|
|
591 |
{
|
|
592 |
pC=((TUint8*)(aFormatedText.iText+aFormatedText.iTextLength))-1;
|
|
593 |
increment=(-1);
|
|
594 |
}
|
|
595 |
else
|
|
596 |
{
|
|
597 |
pC=(TUint8*)aFormatedText.iText;
|
|
598 |
increment=1;
|
|
599 |
}
|
|
600 |
for (TInt k=aFormatedText.iTextLength*sizeof(*aFormatedText.iText);k>0;--k)
|
|
601 |
{
|
|
602 |
*pC=(TUint8)uVal;
|
|
603 |
pC+=increment;
|
|
604 |
uVal>>=8;
|
|
605 |
}
|
|
606 |
}
|
|
607 |
break;
|
|
608 |
case 'F': // TRealX conversion
|
|
609 |
if (aParameterHandler.HandleParameter(&rValX, sizeof(TRealX), KAlignTRealX)!=TParameterHandler::EParameterExtracted)
|
|
610 |
{
|
|
611 |
break;
|
|
612 |
}
|
|
613 |
rVal=rValX;
|
|
614 |
goto doReal;
|
|
615 |
case 'f': // TReal conversion
|
|
616 |
if (aParameterHandler.HandleParameter(&rVal, sizeof(TReal), KAlignTReal)!=TParameterHandler::EParameterExtracted)
|
|
617 |
{
|
|
618 |
break;
|
|
619 |
}
|
|
620 |
goto doReal;
|
|
621 |
case 'E':
|
|
622 |
if (aParameterHandler.HandleParameter(&rValX, sizeof(TRealX), KAlignTRealX)!=TParameterHandler::EParameterExtracted)
|
|
623 |
{
|
|
624 |
break;
|
|
625 |
}
|
|
626 |
rVal=rValX;
|
|
627 |
realFormatType=KRealFormatExponent|KAllowThreeDigitExp; // AnnW - changed from EExponent
|
|
628 |
goto doReal;
|
|
629 |
case 'e':
|
|
630 |
if (aParameterHandler.HandleParameter(&rVal, sizeof(TReal), KAlignTReal)!=TParameterHandler::EParameterExtracted)
|
|
631 |
{
|
|
632 |
break;
|
|
633 |
}
|
|
634 |
realFormatType=KRealFormatExponent|KAllowThreeDigitExp; // AnnW - changed from EExponent
|
|
635 |
//goto doReal;
|
|
636 |
doReal:
|
|
637 |
{
|
|
638 |
if (precision==KNoPrecision)
|
|
639 |
precision=KDefaultPrecision;
|
|
640 |
TRealFormat realFormat(KMaxRealWidth, precision);
|
|
641 |
realFormat.iType=realFormatType;
|
|
642 |
aFormatedText.iTextLength=aFormatedText.iBuffer.Num(rVal, realFormat);
|
|
643 |
if (aFormatedText.iTextLength<0)
|
|
644 |
{
|
|
645 |
if (aFormatedText.iTextLength==KErrGeneral)
|
|
646 |
XPanicker::Panic_BadFormatDescriptor();
|
|
647 |
else
|
|
648 |
aFormatedText.iTextLength=aFormatedText.iBuffer.Length();
|
|
649 |
}
|
|
650 |
if (aFormatedText.iWidth!=KDefaultJustifyWidth && aFormatedText.iTextLength>aFormatedText.iWidth)
|
|
651 |
aFormatedText.iWidth=aFormatedText.iTextLength;
|
|
652 |
}
|
|
653 |
break;
|
|
654 |
case 'G':
|
|
655 |
if (aParameterHandler.HandleParameter(&rValX, sizeof(TRealX), KAlignTRealX)!=TParameterHandler::EParameterExtracted)
|
|
656 |
{
|
|
657 |
break;
|
|
658 |
}
|
|
659 |
rVal=rValX;
|
|
660 |
goto doGReal;
|
|
661 |
case 'g':
|
|
662 |
if (aParameterHandler.HandleParameter(&rVal, sizeof(TReal), KAlignTReal)!=TParameterHandler::EParameterExtracted)
|
|
663 |
{
|
|
664 |
break;
|
|
665 |
}
|
|
666 |
//goto doGReal;
|
|
667 |
doGReal:
|
|
668 |
{
|
|
669 |
if (precision==KNoPrecision)
|
|
670 |
precision=KDefaultPrecision;
|
|
671 |
|
|
672 |
// aFormatedText.iBuffer must be >= KMaxRealWidth
|
|
673 |
TRealFormat realFormat(KMaxRealWidth, precision); // Changed from 'width' to KMaxRealWidth
|
|
674 |
realFormat.iType=KRealFormatGeneral|KAllowThreeDigitExp; // AnnW - changed from EGeneral
|
|
675 |
aFormatedText.iTextLength=aFormatedText.iBuffer.Num(rVal, realFormat);
|
|
676 |
if (aFormatedText.iTextLength<0)
|
|
677 |
{
|
|
678 |
// Doesn't fit in given width
|
|
679 |
realFormat.iWidth=KDefaultRealWidth;
|
|
680 |
aFormatedText.iTextLength=aFormatedText.iBuffer.Num(rVal, realFormat);
|
|
681 |
}
|
|
682 |
if (aFormatedText.iTextLength<0)
|
|
683 |
{
|
|
684 |
if (aFormatedText.iTextLength==KErrGeneral)
|
|
685 |
XPanicker::Panic_BadFormatDescriptor();
|
|
686 |
else
|
|
687 |
aFormatedText.iTextLength=aFormatedText.iBuffer.Length();
|
|
688 |
}
|
|
689 |
if (aFormatedText.iWidth!=KDefaultJustifyWidth && aFormatedText.iTextLength>aFormatedText.iWidth)
|
|
690 |
aFormatedText.iWidth=aFormatedText.iTextLength;
|
|
691 |
}
|
|
692 |
break;
|
|
693 |
default: // Not recognized - output % something
|
|
694 |
XPanicker::Panic_BadFormatDescriptor();
|
|
695 |
}
|
|
696 |
// Justify result of conversion
|
|
697 |
if (aFormatedText.iWidth==KDefaultJustifyWidth)
|
|
698 |
aFormatedText.iWidth=aFormatedText.iTextLength;
|
|
699 |
if (aFormatedText.iTextLength>aFormatedText.iWidth)
|
|
700 |
aFormatedText.iTextLength=aFormatedText.iWidth;
|
|
701 |
}
|
|
702 |
|
|
703 |
template <class XDes, class XDesOverflow, class XDesC, class XFormatedText, class XLex, class XPanicker, TInt XItemSize>
|
|
704 |
void DoAppendFormatList(XDes& aThis,const XDesC& aFormat,VA_LIST aList,XDesOverflow* aOverflowHandler)
|
|
705 |
//
|
|
706 |
// Convert the argument list, using the format descriptor.
|
|
707 |
//
|
|
708 |
{
|
|
709 |
|
|
710 |
const TInt overflowLength=aOverflowHandler? aThis.MaxLength(): KMaxTInt;
|
|
711 |
const TInt originalLength=aThis.Length();
|
|
712 |
TBool needSecondPass=EFalse;
|
|
713 |
TParameterManager parameterManager;
|
|
714 |
XLex format(aFormat);
|
|
715 |
TInt implicitFormatDirectiveIndex=0;
|
|
716 |
FOREVER
|
|
717 |
{
|
|
718 |
if (format.Eos())
|
|
719 |
{
|
|
720 |
break;
|
|
721 |
}
|
|
722 |
const TChar character=format.Get();
|
|
723 |
if (character!='%')
|
|
724 |
{
|
|
725 |
if (!needSecondPass)
|
|
726 |
{
|
|
727 |
if (aThis.Length()>=overflowLength)
|
|
728 |
{
|
|
729 |
aOverflowHandler->Overflow(aThis);
|
|
730 |
return;
|
|
731 |
}
|
|
732 |
aThis.Append(character);
|
|
733 |
}
|
|
734 |
}
|
|
735 |
else if (format.Peek()=='%')
|
|
736 |
{
|
|
737 |
if (!needSecondPass)
|
|
738 |
{
|
|
739 |
if (aThis.Length()>=overflowLength)
|
|
740 |
{
|
|
741 |
aOverflowHandler->Overflow(aThis);
|
|
742 |
return;
|
|
743 |
}
|
|
744 |
aThis.Append(character);
|
|
745 |
}
|
|
746 |
format.Inc();
|
|
747 |
}
|
|
748 |
else
|
|
749 |
{
|
|
750 |
TFormatDirective formatDirective;
|
|
751 |
TParameterHandler parameterHandler(implicitFormatDirectiveIndex, parameterManager, formatDirective);
|
|
752 |
XFormatedText formatedText;
|
|
753 |
const TInt error=parameterManager.PrepareToExtractNextParameter(aList);
|
|
754 |
if (error!=KErrNone)
|
|
755 |
{
|
|
756 |
__ASSERT_DEBUG(error==KErrNotReady, Panic(EUnexpectedError2));
|
|
757 |
needSecondPass=ETrue;
|
|
758 |
}
|
|
759 |
HandleFormatDirective<XDesC, XFormatedText, XLex, XPanicker, XItemSize>(parameterHandler, formatedText, format);
|
|
760 |
parameterManager.AddFormatDirective(formatDirective);
|
|
761 |
if (!needSecondPass)
|
|
762 |
{
|
|
763 |
if ((aThis.Length()+formatedText.iWidth)>overflowLength)
|
|
764 |
{
|
|
765 |
aOverflowHandler->Overflow(aThis);
|
|
766 |
return;
|
|
767 |
}
|
|
768 |
aThis.AppendJustify(formatedText.iText, formatedText.iTextLength, formatedText.iWidth, formatedText.iJustify, formatedText.iFill);
|
|
769 |
}
|
|
770 |
++implicitFormatDirectiveIndex;
|
|
771 |
}
|
|
772 |
}
|
|
773 |
if (needSecondPass)
|
|
774 |
{
|
|
775 |
aThis.SetLength(originalLength);
|
|
776 |
parameterManager.PrepareToExtractParameters(aList);
|
|
777 |
format=aFormat;
|
|
778 |
implicitFormatDirectiveIndex=0;
|
|
779 |
FOREVER
|
|
780 |
{
|
|
781 |
if (format.Eos())
|
|
782 |
{
|
|
783 |
break;
|
|
784 |
}
|
|
785 |
const TChar character=format.Get();
|
|
786 |
if (character!='%')
|
|
787 |
{
|
|
788 |
if (aThis.Length()>=overflowLength)
|
|
789 |
{
|
|
790 |
aOverflowHandler->Overflow(aThis);
|
|
791 |
return;
|
|
792 |
}
|
|
793 |
aThis.Append(character);
|
|
794 |
}
|
|
795 |
else if (format.Peek()=='%')
|
|
796 |
{
|
|
797 |
if (aThis.Length()>=overflowLength)
|
|
798 |
{
|
|
799 |
aOverflowHandler->Overflow(aThis);
|
|
800 |
return;
|
|
801 |
}
|
|
802 |
aThis.Append(character);
|
|
803 |
format.Inc();
|
|
804 |
}
|
|
805 |
else
|
|
806 |
{
|
|
807 |
TParameterHandler parameterHandler(implicitFormatDirectiveIndex, parameterManager);
|
|
808 |
XFormatedText formatedText;
|
|
809 |
HandleFormatDirective<XDesC, XFormatedText, XLex, XPanicker, XItemSize>(parameterHandler, formatedText, format);
|
|
810 |
if ((aThis.Length()+formatedText.iWidth)>overflowLength)
|
|
811 |
{
|
|
812 |
aOverflowHandler->Overflow(aThis);
|
|
813 |
return;
|
|
814 |
}
|
|
815 |
aThis.AppendJustify(formatedText.iText, formatedText.iTextLength, formatedText.iWidth, formatedText.iJustify, formatedText.iFill);
|
|
816 |
++implicitFormatDirectiveIndex;
|
|
817 |
}
|
|
818 |
}
|
|
819 |
}
|
|
820 |
}
|
|
821 |
|
|
822 |
|
|
823 |
|
|
824 |
|
|
825 |
/**
|
|
826 |
Formats and appends text onto the end of this descriptor's data.
|
|
827 |
|
|
828 |
The length of this descriptor is incremented to reflect the new content.
|
|
829 |
|
|
830 |
The behaviour of this function is the same as
|
|
831 |
AppendFormat(TRefByValue<const TDesC8> aFmt,TDes8Overflow *aOverflowHandler,...).
|
|
832 |
In practice, it is better and easier to use AppendFormat(), passing a variable number of
|
|
833 |
arguments as required by the format string.
|
|
834 |
|
|
835 |
@param aFormat The descriptor containing the format string.
|
|
836 |
@param aList A pointer to an argument list.
|
|
837 |
@param aOverflowHandler If supplied, a pointer to the overflow handler.
|
|
838 |
|
|
839 |
@see TDes8::AppendFormat
|
|
840 |
@see VA_LIST
|
|
841 |
*/
|
|
842 |
EXPORT_C void TDes8::AppendFormatList(const TDesC8 &aFormat,VA_LIST aList,TDes8Overflow *aOverflowHandler)
|
|
843 |
{
|
|
844 |
|
|
845 |
DoAppendFormatList<TDes8, TDes8Overflow, TDesC8, TFormatedText8, TLex8, TPanicker8, sizeof(TUint8)>(*this,aFormat,aList,aOverflowHandler);
|
|
846 |
}
|
|
847 |
|
|
848 |
|
|
849 |
|
|
850 |
/**
|
|
851 |
Formats and appends text onto the end of this descriptor's data.
|
|
852 |
|
|
853 |
The length of this descriptor is incremented to reflect the new content.
|
|
854 |
|
|
855 |
The behaviour of this function is the same as
|
|
856 |
AppendFormat(TRefByValue<const TDesC16> aFmt,TDes16Overflow *aOverflowHandler,...).
|
|
857 |
In practice, it is better and easier to use AppendFormat(), passing a variable number of
|
|
858 |
arguments as required by the format string.
|
|
859 |
|
|
860 |
@param aFormat The descriptor containing the format string.
|
|
861 |
@param aList A pointer to an argument list.
|
|
862 |
@param aOverflowHandler If supplied, a pointer to the overflow handler.
|
|
863 |
|
|
864 |
@see TDes16::AppendFormat
|
|
865 |
@see VA_LIST
|
|
866 |
*/
|
|
867 |
EXPORT_C void TDes16::AppendFormatList(const TDesC16 &aFormat,VA_LIST aList,TDes16Overflow *aOverflowHandler)
|
|
868 |
{
|
|
869 |
|
|
870 |
DoAppendFormatList<TDes16, TDes16Overflow, TDesC16, TFormatedText16, TLex16, TPanicker16, sizeof(TUint16)>(*this,aFormat,aList,aOverflowHandler);
|
|
871 |
}
|
|
872 |
|