cpstringutils.cpp

开源的ssl算法openssl,版本0.9.8H

				}
				
				if (inIgnoreCase && currentChar >= 'a' && currentChar <= 'z')
				{
					currentChar = currentChar - 'a' + 'A';
				}
				
				if (currentChar != searchChar)
				{
					break;
				}
			}
		}
		
		theOffset = -1;
	}


EXITPOINT:
	
	return(theOffset);
}



void InsertCStrIntoCStr(const char *theSrcCStr,const int theInsertionOffset,char *theDstCStr,const int maxDstStrLength)
{
int		currentLength;
int		insertLength;
int		numCharsToInsert;
int		numCharsToShift;

	
	if (theDstCStr != nil && theSrcCStr != nil && maxDstStrLength > 0 && theInsertionOffset < maxDstStrLength - 1)
	{
		currentLength = CStrLength(theDstCStr);
		
		insertLength = CStrLength(theSrcCStr);
		

		if (theInsertionOffset + insertLength < maxDstStrLength - 1)
		{
			numCharsToInsert = insertLength;
		}
		
		else
		{
			numCharsToInsert = maxDstStrLength - 1 - theInsertionOffset;
		}
		

		if (numCharsToInsert + currentLength < maxDstStrLength - 1)
		{
			numCharsToShift = currentLength - theInsertionOffset;
		}
		
		else
		{
			numCharsToShift = maxDstStrLength - 1 - theInsertionOffset - numCharsToInsert;
		}

		
		if (numCharsToShift > 0)
		{
			BlockMove(theDstCStr + theInsertionOffset,theDstCStr + theInsertionOffset + numCharsToInsert,numCharsToShift);
		}
		
		if (numCharsToInsert > 0)
		{
			BlockMove(theSrcCStr,theDstCStr + theInsertionOffset,numCharsToInsert);
		}
		
		theDstCStr[theInsertionOffset + numCharsToInsert + numCharsToShift] = 0;
	}
}



void InsertPStrIntoCStr(const unsigned char *theSrcPStr,const int theInsertionOffset,char *theDstCStr,const int maxDstStrLength)
{
int		currentLength;
int		insertLength;
int		numCharsToInsert;
int		numCharsToShift;

	
	if (theDstCStr != nil && theSrcPStr != nil && maxDstStrLength > 0 && theInsertionOffset < maxDstStrLength - 1)
	{
		currentLength = CStrLength(theDstCStr);
		
		insertLength = PStrLength(theSrcPStr);
		

		if (theInsertionOffset + insertLength < maxDstStrLength - 1)
		{
			numCharsToInsert = insertLength;
		}
		
		else
		{
			numCharsToInsert = maxDstStrLength - 1 - theInsertionOffset;
		}
		

		if (numCharsToInsert + currentLength < maxDstStrLength - 1)
		{
			numCharsToShift = currentLength - theInsertionOffset;
		}
		
		else
		{
			numCharsToShift = maxDstStrLength - 1 - theInsertionOffset - numCharsToInsert;
		}

		
		if (numCharsToShift > 0)
		{
			BlockMove(theDstCStr + theInsertionOffset,theDstCStr + theInsertionOffset + numCharsToInsert,numCharsToShift);
		}
		
		if (numCharsToInsert > 0)
		{
			BlockMove(theSrcPStr + 1,theDstCStr + theInsertionOffset,numCharsToInsert);
		}
		
		theDstCStr[theInsertionOffset + numCharsToInsert + numCharsToShift] = 0;
	}
}



OSErr InsertCStrIntoHandle(const char *theCString,Handle theHandle,const long inInsertOffset)
{
OSErr	errCode;
int		currentLength;
int		insertLength;

	
	SetErrorMessageAndBailIfNil(theCString,"InsertCStrIntoHandle: Bad parameter, theCString == nil");

	SetErrorMessageAndBailIfNil(theHandle,"InsertCStrIntoHandle: Bad parameter, theHandle == nil");
	
	currentLength = CStrLength(*theHandle);
	
	if (currentLength + 1 > ::GetHandleSize(theHandle))
	{
		SetErrorMessageAndBail("InsertCStrIntoHandle: Handle has been overflowed");
	}
	
	if (inInsertOffset > currentLength)
	{
		SetErrorMessageAndBail("InsertCStrIntoHandle: Insertion offset is greater than string length");
	}
	
	insertLength = CStrLength(theCString);
	
	::SetHandleSize(theHandle,currentLength + 1 + insertLength);
	
	if (::GetHandleSize(theHandle) < currentLength + 1 + insertLength)
	{
		SetErrorMessageAndLongIntAndBail("InsertCStrIntoHandle: Can't expand storage for Handle, MemError() = ",MemError());
	}
	
	::BlockMove(*theHandle + inInsertOffset,*theHandle + inInsertOffset + insertLength,currentLength - inInsertOffset + 1);
	
	::BlockMove(theCString,*theHandle + inInsertOffset,insertLength);


	errCode = noErr;
	
	
EXITPOINT:

	return(errCode);
}




void CopyCStrAndInsert1LongIntIntoCStr(const char *theSrcCStr,const long theNum,char *theDstCStr,const int maxDstStrLength)
{
	CopyCStrAndInsertCStrLongIntIntoCStr(theSrcCStr,nil,theNum,theDstCStr,maxDstStrLength);
}


void CopyCStrAndInsert2LongIntsIntoCStr(const char *theSrcCStr,const long long1,const long long2,char *theDstCStr,const int maxDstStrLength)
{
const long	theLongInts[] = { long1,long2 };

	CopyCStrAndInsertCStrsLongIntsIntoCStr(theSrcCStr,nil,theLongInts,theDstCStr,maxDstStrLength);
}


void CopyCStrAndInsert3LongIntsIntoCStr(const char *theSrcCStr,const long long1,const long long2,const long long3,char *theDstCStr,const int maxDstStrLength)
{
const long	theLongInts[] = { long1,long2,long3 };

	CopyCStrAndInsertCStrsLongIntsIntoCStr(theSrcCStr,nil,theLongInts,theDstCStr,maxDstStrLength);
}


void CopyCStrAndInsertCStrIntoCStr(const char *theSrcCStr,const char *theInsertCStr,char *theDstCStr,const int maxDstStrLength)
{
const char	*theCStrs[2] = { theInsertCStr,nil };

	CopyCStrAndInsertCStrsLongIntsIntoCStr(theSrcCStr,theCStrs,nil,theDstCStr,maxDstStrLength);
}



void CopyCStrAndInsertCStrLongIntIntoCStr(const char *theSrcCStr,const char *theInsertCStr,const long theNum,char *theDstCStr,const int maxDstStrLength)
{
const char	*theCStrs[2] = { theInsertCStr,nil };
const long	theLongInts[1] = { theNum };

	CopyCStrAndInsertCStrsLongIntsIntoCStr(theSrcCStr,theCStrs,theLongInts,theDstCStr,maxDstStrLength);
}



void CopyCStrAndInsertCStrsLongIntsIntoCStr(const char *theSrcCStr,const char **theInsertCStrs,const long *theLongInts,char *theDstCStr,const int maxDstStrLength)
{
int			dstCharIndex,srcCharIndex,theMaxDstStrLength;
int			theCStrIndex = 0;
int			theLongIntIndex = 0;

	
	theMaxDstStrLength = maxDstStrLength;
	
	if (theDstCStr != nil && theSrcCStr != nil && theMaxDstStrLength > 0)
	{
		dstCharIndex = 0;
		
		srcCharIndex = 0;
		
		
		//	Allow room for NULL at end of string
		
		theMaxDstStrLength--;
		
		
		for (;;)
		{
			//	Hit end of buffer?
			
			if (dstCharIndex >= theMaxDstStrLength)
			{
				theDstCStr[dstCharIndex++] = 0;
				
				goto EXITPOINT;
			}
			
			//	End of source string?
			
			else if (theSrcCStr[srcCharIndex] == 0)
			{
				theDstCStr[dstCharIndex++] = 0;
				
				goto EXITPOINT;
			}
			
			//	Did we find a '%s'?
			
			else if (theInsertCStrs != nil && theInsertCStrs[theCStrIndex] != nil && theSrcCStr[srcCharIndex] == '%' && theSrcCStr[srcCharIndex + 1] == 's')
			{
				//	Skip over the '%s'
				
				srcCharIndex += 2;
				
				
				//	Terminate the dest string and then concat the string
				
				theDstCStr[dstCharIndex] = 0;
				
				ConcatCStrToCStr(theInsertCStrs[theCStrIndex],theDstCStr,theMaxDstStrLength);
				
				dstCharIndex = CStrLength(theDstCStr);
				
				theCStrIndex++;
			}
			
			//	Did we find a '%ld'?
			
			else if (theLongInts != nil && theSrcCStr[srcCharIndex] == '%' && theSrcCStr[srcCharIndex + 1] == 'l' && theSrcCStr[srcCharIndex + 2] == 'd')
			{
				//	Skip over the '%ld'
				
				srcCharIndex += 3;
				
				
				//	Terminate the dest string and then concat the number
				
				theDstCStr[dstCharIndex] = 0;
				
				ConcatLongIntToCStr(theLongInts[theLongIntIndex],theDstCStr,theMaxDstStrLength);
				
				theLongIntIndex++;
				
				dstCharIndex = CStrLength(theDstCStr);
			}
			
			else
			{
				theDstCStr[dstCharIndex++] = theSrcCStr[srcCharIndex++];
			}
		}
	}



EXITPOINT:

	return;
}





OSErr CopyCStrAndInsertCStrLongIntIntoHandle(const char *theSrcCStr,const char *theInsertCStr,const long theNum,Handle *theHandle)
{
OSErr	errCode;
long	byteCount;

	
	if (theHandle != nil)
	{
		byteCount = CStrLength(theSrcCStr) + CStrLength(theInsertCStr) + 32;
		
		*theHandle = NewHandle(byteCount);
		
		if (*theHandle == nil)
		{
			SetErrorMessageAndLongIntAndBail("CopyCStrAndInsertCStrLongIntIntoHandle: Can't allocate Handle, MemError() = ",MemError());
		}
		
		
		HLock(*theHandle);
		
		CopyCStrAndInsertCStrLongIntIntoCStr(theSrcCStr,theInsertCStr,theNum,**theHandle,byteCount);
		
		HUnlock(*theHandle);
	}
	
	errCode = noErr;
	
	
EXITPOINT:

	return(errCode);
}





OSErr CopyIndexedWordToCStr(char *theSrcCStr,int whichWord,char *theDstCStr,int maxDstCStrLength)
{
OSErr		errCode;
char		*srcCharPtr,*dstCharPtr;
int			wordCount;
int			byteCount;


	if (theSrcCStr == nil)
	{
		SetErrorMessageAndBail(("CopyIndexedWordToCStr: Bad parameter, theSrcCStr == nil"));
	}
	
	if (theDstCStr == nil)
	{
		SetErrorMessageAndBail(("CopyIndexedWordToCStr: Bad parameter, theDstCStr == nil"));
	}
	
	if (whichWord < 0)
	{
		SetErrorMessageAndBail(("CopyIndexedWordToCStr: Bad parameter, whichWord < 0"));
	}
	
	if (maxDstCStrLength <= 0)
	{
		SetErrorMessageAndBail(("CopyIndexedWordToCStr: Bad parameter, maxDstCStrLength <= 0"));
	}

	
	*theDstCStr = '\0';
	
	srcCharPtr = theSrcCStr;

	while (*srcCharPtr == ' ' || *srcCharPtr == '\t')
	{
		srcCharPtr++;
	}
	

	for (wordCount = 0;wordCount < whichWord;wordCount++)
	{
		while (*srcCharPtr != ' ' && *srcCharPtr != '\t' && *srcCharPtr != '\r' && *srcCharPtr != '\n' && *srcCharPtr != '\0')
		{
			srcCharPtr++;
		}
		
		if (*srcCharPtr == '\r' || *srcCharPtr == '\n' || *srcCharPtr == '\0')
		{
			errCode = noErr;
			
			goto EXITPOINT;
		}

		while (*srcCharPtr == ' ' || *srcCharPtr == '\t')
		{
			srcCharPtr++;
		}
		
		if (*srcCharPtr == '\r' || *srcCharPtr == '\n' || *srcCharPtr == '\0')
		{
			errCode = noErr;
			
			goto EXITPOINT;
		}
	}


	dstCharPtr = theDstCStr;
	byteCount = 0;
	
	
	for(;;)
	{
		if (byteCount >= maxDstCStrLength - 1 || *srcCharPtr == '\0' || *srcCharPtr == ' ' || *srcCharPtr == '\t' || *srcCharPtr == '\r' || *srcCharPtr == '\n')
		{
			*dstCharPtr = '\0';
			break;
		}
		
		*dstCharPtr++ = *srcCharPtr++;
		
		byteCount++;
	}


	errCode = noErr;


EXITPOINT:

	return(errCode);
}





OSErr CopyIndexedWordToNewHandle(char *theSrcCStr,int whichWord,Handle *outTheHandle)
{
OSErr		errCode;
char		*srcCharPtr;
int			wordCount;
int			byteCount;


	if (theSrcCStr == nil)
	{
		SetErrorMessageAndBail(("CopyIndexedWordToNewHandle: Bad parameter, theSrcCStr == nil"));
	}
	
	if (outTheHandle == nil)
	{
		SetErrorMessageAndBail(("CopyIndexedWordToNewHandle: Bad parameter, outTheHandle == nil"));
	}
	
	if (whichWord < 0)
	{
		SetErrorMessageAndBail(("CopyIndexedWordToNewHandle: Bad parameter, whichWord < 0"));
	}

	
	*outTheHandle = nil;
	

	srcCharPtr = theSrcCStr;

	while (*srcCharPtr == ' ' || *srcCharPtr == '\t')
	{
		srcCharPtr++;
	}
	

	for (wordCount = 0;wordCount < whichWord;wordCount++)
	{
		while (*srcCharPtr != ' ' && *srcCharPtr != '\t' && *srcCharPtr != '\r' && *srcCharPtr != '\n' && *srcCharPtr != '\0')
		{
			srcCharPtr++;
		}
		
		if (*srcCharPtr == '\r' || *srcCharPtr == '\n' || *srcCharPtr == '\0')
		{
			break;
		}

		while (*srcCharPtr == ' ' || *srcCharPtr == '\t')
		{
			srcCharPtr++;
		}
		
		if (*srcCharPtr == '\r' || *srcCharPtr == '\n' || *srcCharPtr == '\0')
		{
			break;
		}
	}


	for (byteCount = 0;;byteCount++)
	{
		if (srcCharPtr[byteCount] == ' ' || srcCharPtr[byteCount] == '\t' || srcCharPtr[byteCount] == '\r' || srcCharPtr[byteCount] == '\n' || srcCharPtr[byteCount] == '\0')
		{
			break;
		}
	}

	
	*outTheHandle = NewHandle(byteCount + 1);
	
	if (*outTheHandle == nil)
	{
		SetErrorMessageAndLongIntAndBail("CopyIndexedWordToNewHandle: Can't allocate Handle, MemError() = ",MemError());
	}
	
	
	::BlockMove(srcCharPtr,**outTheHandle,byteCount);
	
	(**outTheHandle)[byteCount] = '\0';

	errCode = noErr;


EXITPOINT:

	return(errCode);
}



OSErr CopyIndexedLineToCStr(const char *theSrcCStr,int inWhichLine,int *lineEndIndex,Boolean *gotLastLine,char *theDstCStr,const int maxDstCStrLength)
{
OSErr		errCode;
int			theCurrentLine;
int			theCurrentLineOffset;
int			theEOSOffset;


	if (theSrcCStr == nil)
	{
		SetErrorMessageAndBail(("CopyIndexedLineToCStr: Bad parameter, theSrcCStr == nil"));
	}
	
	if (theDstCStr == nil)
	{
		SetErrorMessageAndBail(("CopyIndexedLineToCStr: Bad parameter, theDstCStr == nil"));
	}
	
	if (inWhichLine < 0)
	{
		SetErrorMessageAndBail(("CopyIndexedLineToCStr: Bad parameter, inWhichLine < 0"));
	}
	
	if (maxDstCStrLength <= 0)
	{
		SetErrorMessageAndBail(("CopyIndexedLineToCStr: Bad parameter, maxDstCStrLength <= 0"));
	}
	
	
	if (gotLastLine != nil)
	{
		*gotLastLine = false;
	}

	
	*theDstCStr = 0;
	
	theCurrentLineOffset = 0;
	
	theCurrentLine = 0;
	
	
	while (theCurrentLine < inWhichLine)
	{
		while (theSrcCStr[theCurrentLineOffset] != '\r' && theSrcCStr[theCurrentLineOffset] != 0)
		{
			theCurrentLineOffset++;
		}
		
		if (theSrcCStr[theCurrentLineOffset] == 0)
		{
			break;
		}
		
		theCurrentLineOffset++;
		theCurrentLine++;
	}
		
	if (theSrcCStr[theCurrentLineOffset] == 0)
	{
		SetErrorMessageAndLongIntAndBail("CopyIndexedLineToCStr: Too few lines in source text, can't get line ",inWhichLine);
	}


	theEOSOffset = FindCharOffsetInCStr('\r',theSrcCStr + theCurrentLineOffset);
	
	if (theEOSOffset >= 0)
	{
		CopyCSubstrToCStr(theSrcCStr + theCurrentLineOffset,theEOSOffset,theDstCStr,maxDstCStrLength);
		
		if (gotLastLine != nil)
		{
			*gotLastLine = false;
		}
	
		if (lineEndIndex != nil)
		{
			*lineEndIndex = theEOSOffset;
		}
	}
	
	else
	{
		theEOSOffset = CStrLength(theSrcCStr + theCurrentLineOffset);

		CopyCSubstrToCStr(theSrcCStr + theCurrentLineOffset,theEOSOffset,theDstCStr,maxDstCStrLength);
		
		if (gotLastLine != nil)
		{
			*gotLastLine = true;
		}
	
		if (lineEndIndex != nil)
		{
			*lineEndIndex = theEOSOffset;
		}
	}
	

	errCode = noErr;


EXITPOINT:

	return(errCode);
}



OSErr CopyIndexedLineToNewHandle(const char *theSrcCStr,int inWhichLine,Handle *outNewHandle)
{
OSErr		errCode;
int			theCurrentLine;
int			theCurrentLineOffset;
int			byteCount;


	SetErrorMessageAndBailIfNil(theSrcCStr,"CopyIndexedLineToNewHandle: Bad parameter, theSrcCStr == nil");
	SetErrorMessageAndBailIfNil(outNewHandle,"CopyIndexedLineToNewHandle: Bad parameter, outNewHandle == nil");
	
	if (inWhichLine < 0)
	{
		SetErrorMessageAndBail(("CopyIndexedLineToNewHandle: Bad parameter, inWhichLine < 0"));
	}
	

	theCurrentLineOffset = 0;
	
	theCurrentLine = 0;
	
	
	while (theCurrentLine < inWhichLine)
	{
		while (theSrcCStr[theCurrentLineOffset] != '\r' && theSrcCStr[theCurrentLineOffset] != '\0')
		{
			theCurrentLineOffset++;
		}
		
		if (theSrcCStr[theCurrentLineOffset] == '\0')
		{
			break;
		}
		
		theCurrentLineOffset++;
		theCurrentLine++;
	}