1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/graphics/windowing/windowserver/test/t_genericplugin/src/t_cinidata.cpp Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,349 @@
1.4 +// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
1.5 +// All rights reserved.
1.6 +// This component and the accompanying materials are made available
1.7 +// under the terms of "Eclipse Public License v1.0"
1.8 +// which accompanies this distribution, and is available
1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.10 +//
1.11 +// Initial Contributors:
1.12 +// Nokia Corporation - initial contribution.
1.13 +//
1.14 +// Contributors:
1.15 +//
1.16 +// Description:
1.17 +//
1.18 +
1.19 +/**
1.20 + @file
1.21 + @test
1.22 + @internalComponent
1.23 +*/
1.24 +
1.25 +#include "t_cinidata.h"
1.26 +#include <f32file.h>
1.27 +#include <e32std.h>
1.28 +
1.29 +// Default directory to look for INI file
1.30 +_LIT(KIniFileDir,"Z:\\System\\Data\\");
1.31 +
1.32 +// Constant Value changed for DEF047130 fix
1.33 +const TInt KTokenSize = 256;
1.34 +
1.35 +enum TIniPanic
1.36 + {
1.37 + ESectionNameTooBig,
1.38 + EKeyNameTooBig,
1.39 + };
1.40 +
1.41 +//
1.42 +void Panic(TIniPanic aPanic)
1.43 + {
1.44 + _LIT(CIniData,"CIniData");
1.45 + User::Panic(CIniData,aPanic);
1.46 + }
1.47 +
1.48 +/**
1.49 +Constructor
1.50 +*/
1.51 +CIniData::CIniData() : iPtr(NULL,0)
1.52 + {
1.53 + __DECLARE_NAME(_S("CIniData"));
1.54 + }
1.55 +
1.56 +/**
1.57 +Destructor.
1.58 +Frees the resources located in second-phase constructor
1.59 +*/
1.60 +CIniData::~CIniData()
1.61 + {
1.62 + delete (TText*)iPtr.Ptr();
1.63 + delete iToken;
1.64 + delete iName;
1.65 + }
1.66 +
1.67 +/**
1.68 + Creates, and returns a pointer to CIniData object, leave on failure
1.69 + @param aName the name of the file which contains the ini data
1.70 + @param aDelimeter Delimiter used in wsini.ini file between variable and value
1.71 + @return A pointer to the CiniData object
1.72 +*/
1.73 +CIniData* CIniData::NewL(const TDesC& aName, char aDelimiter)
1.74 + {
1.75 + CIniData* p = new(ELeave) CIniData;
1.76 + CleanupStack::PushL(p);
1.77 + p->ConstructL(aName, aDelimiter);
1.78 + CleanupStack::Pop();
1.79 + return p;
1.80 + }
1.81 +
1.82 +/**
1.83 + Second-phase constructor.
1.84 + The function attempts to allocate a buffer and Read file's contents into iPtr
1.85 + @param aName the name of the file which contains the ini data
1.86 + @param aDelimeter Delimiter used in wsini.ini file between variable and value
1.87 + @leave One of the system-wide error codes
1.88 +*/
1.89 +void CIniData::ConstructL(const TDesC& aName, char aDelimiter)
1.90 + {
1.91 + //Set delimiter
1.92 + iDelimiter = aDelimiter;
1.93 +
1.94 + // Allocate space for token
1.95 + iToken=HBufC::NewL(KTokenSize+2); // 2 extra chars for [tokenName]
1.96 +
1.97 + // Connect to file server
1.98 + TAutoClose<RFs> fs;
1.99 + User::LeaveIfError(fs.iObj.Connect());
1.100 + fs.PushL();
1.101 +
1.102 + // Find file, given name
1.103 + TFindFile ff(fs.iObj);
1.104 + User::LeaveIfError(ff.FindByDir(aName, KIniFileDir));
1.105 + iName = ff.File().AllocL();
1.106 +
1.107 + // Open file
1.108 + TAutoClose<RFile> file;
1.109 + TInt size;
1.110 + User::LeaveIfError(file.iObj.Open(fs.iObj,*iName,EFileStreamText|EFileShareReadersOrWriters));
1.111 + file.PushL();
1.112 +
1.113 + // Get file size and read in
1.114 + User::LeaveIfError(file.iObj.Size(size));
1.115 + TText* data = (TText*)User::AllocL(size);
1.116 + iPtr.Set(data, size/sizeof(TText), size/sizeof(TText));
1.117 + TPtr8 dest((TUint8*)data, 0, size);
1.118 + User::LeaveIfError(file.iObj.Read(dest));
1.119 + TUint8* ptr = (TUint8*)data;
1.120 +
1.121 + //
1.122 + // This is orderred as FEFF assuming the processor is Little Endian
1.123 + // The data in the file is FFFE. PRR 28/9/98
1.124 + //
1.125 + if(size>=(TInt)sizeof(TText) && iPtr[0]==0xFEFF)
1.126 + {
1.127 + // UNICODE Text file so lose the FFFE
1.128 + Mem::Copy(ptr, ptr+sizeof(TText), size-sizeof(TText));
1.129 + iPtr.Set(data, size/sizeof(TText)-1, size/sizeof(TText)-1);
1.130 + }
1.131 + else if(size)
1.132 + {
1.133 + // NON-UNICODE so convert to UNICODE
1.134 + TText* newdata = (TText*)User::AllocL(size*sizeof(TText));
1.135 + iPtr.Set(newdata, size, size);
1.136 + TInt i;
1.137 + for(i = 0 ; i<size ; ++i)
1.138 + iPtr[i] = ptr[i];
1.139 + delete data;
1.140 + }
1.141 +
1.142 + file.Pop();
1.143 + fs.Pop();
1.144 +}
1.145 +
1.146 +/**
1.147 +Find a text value from given aKeyName regardless the section in the ini data file
1.148 +@param aKeyName Key being searched for
1.149 +@param aResult On return, contains the text result
1.150 +@return ETrue if found, otherwise EFalse
1.151 +*/
1.152 +TBool CIniData::FindVar(const TDesC& aKeyName, TPtrC& aResult)
1.153 + {
1.154 + // Call with no section, so starts at beginning
1.155 + if (FindVar((TDesC&)KNullDesC , aKeyName, aResult))
1.156 + return(ETrue);
1.157 + else
1.158 + return(EFalse);
1.159 + }
1.160 +
1.161 +/**
1.162 +Find a text value from given aKeyName and aSecName in the ini data file
1.163 +@param aSectName Section containing key
1.164 +@param aKeyName Key being searched for in aSectName
1.165 +@param aResult On return, contains the text result
1.166 +@return ETrue if found, otherwise EFalse
1.167 +*/
1.168 +TBool CIniData::FindVar(const TDesC& aSectName,const TDesC& aKeyName,TPtrC& aResult)
1.169 + {
1.170 +
1.171 + __ASSERT_DEBUG(aSectName.Length()<=KTokenSize,Panic(ESectionNameTooBig));
1.172 + __ASSERT_DEBUG(aKeyName.Length()<=KTokenSize,Panic(EKeyNameTooBig));
1.173 +
1.174 + TInt posStartOfSection(0);
1.175 + TInt posEndOfSection(iPtr.Length()); // Default to the entire length of the ini data
1.176 + TPtrC SearchBuf;
1.177 +
1.178 + // If we have a section, set pos to section start
1.179 + TInt posI(0); // Position in internal data Buffer
1.180 + if( aSectName.Length() > 0 )
1.181 + {
1.182 + TBool FoundSection(false);
1.183 + while ( ! FoundSection )
1.184 + {
1.185 + // Move search buffer to next area of interest
1.186 + SearchBuf.Set(iPtr.Mid(posI));
1.187 +
1.188 + // Make up token "[SECTIONNAME]", to search for
1.189 + TPtr sectionToken = iToken->Des();
1.190 + _LIT(sectionTokenFmtString,"[%S]");
1.191 + sectionToken.Format(sectionTokenFmtString,&aSectName);
1.192 +
1.193 + // Search for next occurrence of aSectName
1.194 + TInt posSB = SearchBuf.Find(sectionToken);
1.195 +
1.196 + if (posSB == KErrNotFound)
1.197 + return(EFalse);
1.198 +
1.199 + // Check this is at beginning of line (ie. non-commented)
1.200 + // ie. Check preceding char was LF
1.201 + if(posSB>0)
1.202 + {
1.203 + // Create a Buffer, starting one char before found subBuf
1.204 + TPtrC CharBefore(SearchBuf.Right(SearchBuf.Length()-posSB+1));
1.205 + // Check first char is end of prev
1.206 + if(CharBefore[0] == '\n')
1.207 + {
1.208 + FoundSection = ETrue; // found
1.209 + posI = posI + posSB;
1.210 + }
1.211 + else
1.212 + {
1.213 + posI = posI + posSB + 1; // try again
1.214 + }
1.215 + }
1.216 + else
1.217 + {
1.218 + FoundSection = ETrue;
1.219 + }
1.220 +
1.221 + } // while ( ! FoundSection )
1.222 +
1.223 + // Set start of section, after section name, (incl '[' and ']')
1.224 + posStartOfSection = posI + aSectName.Length() + 2;
1.225 +
1.226 + // Set end of section, by finding begin of next section or end
1.227 + SearchBuf.Set(iPtr.Mid(posI));
1.228 + _LIT(nextSectionBuf,"\n[");
1.229 + TInt posSB = SearchBuf.Find(nextSectionBuf);
1.230 + if(posSB != KErrNotFound)
1.231 + {
1.232 + posEndOfSection = posI + posSB;
1.233 + }
1.234 + else
1.235 + {
1.236 + posEndOfSection = iPtr.Length();
1.237 + }
1.238 +
1.239 + } // if( aSectName.Length() > 0 )
1.240 +
1.241 + // Look for key in ini file data Buffer
1.242 + posI = posStartOfSection;
1.243 + TBool FoundKey(false);
1.244 + while ( ! FoundKey )
1.245 + {
1.246 + // Search for next occurrence of aKeyName
1.247 + SearchBuf.Set(iPtr.Mid(posI,posEndOfSection-posI));
1.248 + TInt posSB = SearchBuf.Find(aKeyName);
1.249 +
1.250 + // If not found, return
1.251 + if (posSB == KErrNotFound)
1.252 + return(EFalse);
1.253 +
1.254 + // Check this is at beginning of line (ie. non-commented)
1.255 + // ie. Check preceding char was CR or LF
1.256 + if(posSB>0)
1.257 + {
1.258 + // Create a Buffer, starting one char before found subBuf
1.259 + TPtrC CharBefore(SearchBuf.Right(SearchBuf.Length()-posSB+1));
1.260 + // Check if the first char is end of prev and also check
1.261 + // if the token found is not a substring of another string
1.262 + TBool beginningOK = ((CharBefore[0] == '\n') || (CharBefore[0] == ' ') || (CharBefore[0] == '\t'));
1.263 + TBool endingOK = ((CharBefore[aKeyName.Length()+1] == iDelimiter) || (CharBefore[aKeyName.Length()+1] == ' ') || (CharBefore[aKeyName.Length()+1] == '\t'));
1.264 + if (beginningOK && endingOK)
1.265 + {
1.266 + FoundKey = ETrue;
1.267 + posI = posI + posSB;
1.268 + }
1.269 + else
1.270 + {
1.271 + posI = posI + posSB + 1;
1.272 + }
1.273 + }
1.274 + else
1.275 + {
1.276 + FoundKey = ETrue;
1.277 + }
1.278 + } // while ( ! FoundKey )
1.279 +
1.280 + // Set pos, to just after iDelimiter sign
1.281 + SearchBuf.Set(iPtr.Mid(posI));
1.282 + TInt posSB = SearchBuf.Locate(iDelimiter);
1.283 + if(posSB==KErrNotFound) // Illegal format, should flag this...
1.284 + return(EFalse);
1.285 +
1.286 + // Identify start and end of data (EOL or EOF)
1.287 + posI = posI + posSB + 1; // 1 char after iDelimiter
1.288 + TInt posValStart = posI;
1.289 + TInt posValEnd;
1.290 + SearchBuf.Set(iPtr.Mid(posI));
1.291 + posSB = SearchBuf.Locate('\r');
1.292 + if(posSB != KErrNotFound)
1.293 + {
1.294 + posValEnd = posI + posSB;
1.295 + }
1.296 + else
1.297 + {
1.298 + posValEnd = iPtr.Length();
1.299 + }
1.300 +
1.301 + // Check we are still in the section requested
1.302 + if( aSectName.Length() > 0 )
1.303 + {
1.304 + if( posValEnd > posEndOfSection )
1.305 + {
1.306 + return(EFalse);
1.307 + }
1.308 + }
1.309 + // Parse Buffer from posn of key
1.310 + // Start one space after '='
1.311 + TLex lex(iPtr.Mid(posValStart, posValEnd-posValStart));
1.312 + lex.SkipSpaceAndMark(); // Should be at the start of the data
1.313 + aResult.Set(lex.MarkedToken().Ptr(),posValEnd-posValStart - lex.Offset() );
1.314 + return(ETrue);
1.315 + }
1.316 +
1.317 +/**
1.318 +Find an integer value from given aKeyName regardless the section in the ini data file
1.319 +@param aKeyName Key being searched for
1.320 +@param aResult On return, contains the TInt result
1.321 +@return ETrue if found, otherwise EFalse
1.322 +*/
1.323 +TBool CIniData::FindVar(const TDesC& aKeyName, TInt& aResult)
1.324 + {
1.325 + TPtrC ptr(NULL,0);
1.326 + if (FindVar(aKeyName,ptr))
1.327 + {
1.328 + TLex lex(ptr);
1.329 + if (lex.Val(aResult) == KErrNone)
1.330 + return(ETrue);
1.331 + }
1.332 + return(EFalse);
1.333 + }
1.334 +
1.335 +/**
1.336 +Find an integer value from given aKeyName and aSecName in the ini data file
1.337 +@param aSectName Section containing key
1.338 +@param aKeyName Key being searched for in aSectName
1.339 +@param aResult On return, contains TInt result
1.340 +@return ETrue if found, otherwise EFalse
1.341 +*/
1.342 +TBool CIniData::FindVar(const TDesC& aSection,const TDesC& aKeyName,TInt& aResult)
1.343 + {
1.344 + TPtrC ptr(NULL,0);
1.345 + if (FindVar(aSection,aKeyName,ptr))
1.346 + {
1.347 + TLex lex(ptr);
1.348 + if (lex.Val(aResult) == KErrNone)
1.349 + return(ETrue);
1.350 + }
1.351 + return(EFalse);
1.352 +}