bintools/rcomp/src/FILELINE.CPP
author Zheng Shen <zheng.shen@nokia.com>
Wed, 13 Oct 2010 16:31:27 +0800
changeset 648 d5a8d436d33b
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Merge
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/*
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* Copyright (c) 1997-2009 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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*
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*/
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#include <assert.h>
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#include <string.h>
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#include <stdlib.h>
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#include "ASTRING.H"
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#include "FILELINE.H"
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#include "NUMVAL.H"  
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#include "TOKENS.H"  
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#ifdef __LINUX__
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#include <linux/limits.h>
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#define _MAX_PATH PATH_MAX
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#endif //__LINUX__
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#ifdef __VC32__
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#pragma warning( push, 1 )	// MS STL libraries do not compile cleanly, temporarily set warning level to 1
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#pragma warning( disable : 4710 )	// function not inlined.
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#endif
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FileLineManager::FileLineManager():
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	iOffsetLineNumber(0) {}
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FileLineManager::~FileLineManager() {}
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void FileLineManager::SetCurrentFile(const String& a)
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	{
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	iCurrentFileName = &*(iAllFileNames.insert(a).first);
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	}
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#ifdef __VC32__
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#pragma warning( pop )
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#endif
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void FileLineManager::SetBase(const String& aFileName,int aLineNumber)
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	{
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	SetCurrentFile(aFileName);
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	iBaseFileName = iCurrentFileName;
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	iOffsetLineNumber=aLineNumber;
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	}
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void FileLineManager::SetPath(const String& aDriveAndDirectory)
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	{
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	iBasePath=aDriveAndDirectory;
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	}
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String FileLineManager::ExtractFileName( const String & Text)
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	{
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    // The string that is passed to this procedure is expected to contain
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    // a file specification followed by a " followed by other stuff that
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    // is generated by the preprocessor.  We can discard the latter stuff.
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    // This will leave either an empty string (implying the base file name)
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    // or a unix-format relative file specification.
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    // This string class has very little functionality, so we end up
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    // doing traditional C-style stuff on a char buffer to achieve
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    // what we need  {sigh}...
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    char buffer[_MAX_PATH +1];
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    // (older version of this code used heap allocation but I prefer
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    //  this way which is safer and does less heap-churning)
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    String result;      // This is what we will pass back
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	// Copy the text to our working buffer
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    int n = Text.Length();
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    if ( n >= _MAX_PATH ) n = _MAX_PATH; // Unlikely, but you never know
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    strncpy(buffer, Text.GetAssertedNonEmptyBuffer(), n);
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    buffer[n] = '\0';                  // add zero terminator
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    // truncate to the expected double quote character
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    char * pquote = strchr(buffer, '"');
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    if ( pquote != NULL ) * pquote = '\0';
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    n = strlen(buffer);
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    // If we now have an empty string then replace it with the
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    // base filename string that should already be defined.
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    if ( n == 0 )
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        {
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        n = iBaseFileName->Length();
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        if ( n > _MAX_PATH ) n = _MAX_PATH;
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        if (n>0) strncpy(buffer, iBaseFileName->GetAssertedNonEmptyBuffer(), n);
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        buffer[n] = '\0';
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        }
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#ifndef __LINUX__
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    // Replace all the unix-like forward slashes with DOS-like backslashes
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    while ( n > 0 )
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        {
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        n -=1;
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        if ( buffer[n] == '/' ) buffer[n] = '\\';
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        }
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#endif //__LINUX__
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    result = buffer;
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    return result;
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	}
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void FileLineManager::SetInclude(const String& aNameText,int aLineNumber)
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	{
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	SetCurrentFile(ExtractFileName(aNameText));
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	iOffsetLineNumber = aLineNumber;	
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	}
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void FileLineManager::PostInclude( char* aNameText, char * aRealLineNumber, int aLineNumber)
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	{	// Returning to a file (after having included another file).
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	SetCurrentFile(ExtractFileName(aNameText));
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	int val = atoi(aRealLineNumber);
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	iOffsetLineNumber=aLineNumber - val + 1;
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	}
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int	FileLineManager::GetErrorLine(int aCurrentLineNumber) const
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	{
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	return aCurrentLineNumber-iOffsetLineNumber;
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	}
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const String* FileLineManager::GetCurrentFile() const
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	{ 
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	return iCurrentFileName;
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	}
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