author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 15 Jul 2010 19:35:12 +0300 | |
branch | RCL_3 |
changeset 17 | dbd1c5e08735 |
parent 0 | d0791faffa3f |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005-2009 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 "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: CStringList implementation |
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* |
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*/ |
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// INCLUDE FILES |
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#include "stringlist.h" |
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#include "capability.h" |
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#include "debug.h" |
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const TInt KMaxStringlistSize( 1000 ); |
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// ============================= MEMBER FUNCTIONS =============================== |
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// ----------------------------------------------------------------------------- |
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// CStringList::NewL() |
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// Two-phase constructor. |
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// ----------------------------------------------------------------------------- |
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// |
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CStringList* CStringList::NewL() |
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{ |
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CStringList* self = CStringList::NewLC(); |
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CleanupStack::Pop( self ); |
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return self; |
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} |
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// ----------------------------------------------------------------------------- |
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// CStringList::NewLC() |
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// Two-phase constructor. The created instance is placed to cleanup stack |
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// ----------------------------------------------------------------------------- |
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// |
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CStringList* CStringList::NewLC() |
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{ |
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CStringList* self = new ( ELeave ) CStringList(); |
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CleanupStack::PushL( self ); |
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self->ConstructL(); |
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return self; |
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} |
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// ----------------------------------------------------------------------------- |
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// CStringList::CStringList() |
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// Default constuctor |
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// ----------------------------------------------------------------------------- |
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// |
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CStringList::CStringList() |
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{ |
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} |
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// ----------------------------------------------------------------------------- |
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// CStringList::~CStringList() |
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// Destructor |
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// ----------------------------------------------------------------------------- |
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// |
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CStringList::~CStringList() |
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{ |
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delete iLines; |
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iLines = NULL; |
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} |
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// ----------------------------------------------------------------------------- |
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// CStringList::ConstructL() |
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// Initializes member data |
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// ----------------------------------------------------------------------------- |
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// |
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void CStringList::ConstructL() |
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{ |
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const TInt KDefaultArrayGranularity = 10; |
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iLines = new (ELeave) CDesCArrayFlat(KDefaultArrayGranularity); |
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SetMark(0); |
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} |
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// ----------------------------------------------------------------------------- |
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// CStringList::Count() const |
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// Returns the count of lines |
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// ----------------------------------------------------------------------------- |
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// |
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TInt CStringList::Count() const |
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{ |
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return iLines->Count(); |
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} |
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// ----------------------------------------------------------------------------- |
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// CStringList::Panic(TInt aPanic) const |
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// Creates a panic |
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// ----------------------------------------------------------------------------- |
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// |
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#ifdef _DEBUG |
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void CStringList::Panic(TInt aPanic) const |
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#else |
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void CStringList::Panic(TInt /*aPanic*/) const |
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#endif |
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{ |
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107 |
TRACE_FUNC_ENTRY; |
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#ifdef _DEBUG |
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_LIT(KPanicCategory,"CStringList"); |
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110 |
|
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User::Panic(KPanicCategory, aPanic); |
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#endif |
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TRACE_FUNC_EXIT; |
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114 |
} |
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115 |
|
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116 |
// ----------------------------------------------------------------------------- |
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// CStringList::Reset() |
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// Resets iLines |
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119 |
// ----------------------------------------------------------------------------- |
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120 |
// |
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121 |
void CStringList::Reset() |
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122 |
{ |
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iLines->Reset(); |
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124 |
} |
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125 |
|
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126 |
// ----------------------------------------------------------------------------- |
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// CStringList::WriteL(const TDesC& aText) |
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// Writes a string |
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// ----------------------------------------------------------------------------- |
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130 |
// |
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131 |
void CStringList::WriteL(const TDesC& aText) |
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132 |
{ |
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iLines->AppendL(aText); |
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134 |
} |
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135 |
|
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136 |
// ----------------------------------------------------------------------------- |
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137 |
// CStringList::ReadPtr(TInt aIndex) |
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// Returns pointer to the string |
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// ----------------------------------------------------------------------------- |
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140 |
// |
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TPtrC16 CStringList::ReadPtr(TInt aIndex) |
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142 |
{ |
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if (aIndex<0 || aIndex>=Count()) |
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144 |
{ |
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Panic(KErrArgument); |
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146 |
} |
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147 |
|
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return iLines->MdcaPoint(aIndex); |
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149 |
} |
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150 |
|
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151 |
// ----------------------------------------------------------------------------- |
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152 |
// CStringList::CopyL(CStringList* aSource, TInt aStart, TInt aStop) |
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// Copies a string / strings |
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154 |
// ----------------------------------------------------------------------------- |
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155 |
// |
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156 |
void CStringList::CopyL(CStringList* aSource, TInt aStart, TInt aStop) |
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157 |
{ |
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if (aStart<0 || aStop>=aSource->Count() || aStart>aStop) |
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159 |
{ |
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Panic(KErrArgument); |
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161 |
} |
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162 |
|
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for (TInt i=aStart; i<=aStop; i++) |
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164 |
{ |
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WriteL(aSource->ReadPtr(i)); |
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166 |
} |
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167 |
} |
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168 |
|
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169 |
// ----------------------------------------------------------------------------- |
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// CStringList::StrCopy(TDes& aTarget, const TDesC& aSource) const |
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// Copies the string |
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172 |
// ----------------------------------------------------------------------------- |
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173 |
// |
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174 |
TBool CStringList::StrCopy(TDes& aTarget, const TDesC& aSource) const |
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175 |
{ |
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TInt len=aTarget.MaxLength(); |
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if(len<aSource.Length()) |
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178 |
{ |
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aTarget.Copy(aSource.Left(len)); |
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return EFalse; |
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181 |
} |
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aTarget.Copy(aSource); |
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return ETrue; |
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184 |
} |
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185 |
|
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186 |
// ----------------------------------------------------------------------------- |
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// CStringList::ReadFromFileL(const TDesC& aFileName) |
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// Read strings from file. |
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189 |
// ----------------------------------------------------------------------------- |
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190 |
// |
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191 |
|
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void CStringList::ReadFromFileL( RFs& aFs, const TDesC& aFileName ) |
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193 |
{ |
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InternalizeL( aFs, aFileName ); |
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195 |
} |
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196 |
|
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197 |
// ----------------------------------------------------------------------------- |
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// CStringList::InternalizeL(const TDesC& aFileName) |
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// Internalizes from file |
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200 |
// ----------------------------------------------------------------------------- |
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201 |
// |
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void CStringList::InternalizeL( RFs& aFs, const TDesC& aFileName ) |
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203 |
{ |
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204 |
|
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RFile file; |
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User::LeaveIfError( file.Open( aFs, aFileName, EFileRead ) ); |
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CleanupClosePushL( file ); |
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208 |
|
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209 |
|
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210 |
TFileText textFile; |
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textFile.Set( file ); |
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textFile.Seek( ESeekStart ); |
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TBuf<KMaxSize> buffer; |
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TInt count(0); |
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for (;;) |
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{ |
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count++; |
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if ( count > KMaxStringlistSize ) |
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{ |
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break; |
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} |
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|
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buffer = KNullDesC; |
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|
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// |
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// Read seems to read chars until newline is reached or |
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// the descriptor is full. In case descriptor becomes full, |
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// err is KErrTooBig and next read starts from the next line. |
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// |
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TInt err = textFile.Read( buffer ); |
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if ( err == KErrEof ) |
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{ |
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break; |
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} |
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|
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if ( err != KErrNone ) |
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{ |
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User::Leave( err ); |
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} |
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|
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iLines->AppendL( buffer ); |
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} |
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|
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CleanupStack::PopAndDestroy( &file ); // file |
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} |
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|
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|
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// ----------------------------------------------------------------------------- |
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// CStringList::Mark() const |
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// Returns the mark |
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// ----------------------------------------------------------------------------- |
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// |
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TInt CStringList::Mark() const |
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{ |
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return iMark; |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CStringList::SetMark(TInt aMark) |
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// Sets mark |
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// ----------------------------------------------------------------------------- |
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// |
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void CStringList::SetMark(TInt aMark) |
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{ |
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iMark=aMark; |
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} |
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|
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// End of files |