rltxthdr.cpp

linux下的一款播放器

    timeValInMillisec=0;

    if(!pTimeBuffer  ||  timeBufLen<1)
    {
	return FALSE;
    }

    savedEndChar = pTimeBuffer[timeBufferLen-1];

    //Get rid of start & terminating quotation mark, if they exist:
    if('\"' == pTimeBuffer[0])
    {
	pTimeBuffer++;
	timeBufferLen--;
	//Added this check to kill bug if (pTimeBuffer==")
	// and got shortened to an empty string:
	if(!timeBufferLen)
	{
	    return FALSE;
	}
    }
    if('\"' == pTimeBuffer[timeBufferLen-1])
    {
	pTimeBuffer[timeBufferLen-1] = '\0'; //get rid of end '\"'.
	timeBufferLen--;
	endCharWasChanged = TRUE;
    }
    
    //Work from right to left, searching first for milliseconds and then for
    //	seconds (or seconds only if no '.' found):
    BOOL bColonWasFound = FALSE;
    for(bufIndx=timeBufferLen-1; 0L<=bufIndx; bufIndx--)
    {
	_CHAR ch = toupper(pTimeBuffer[bufIndx]);
	if('0' > ch  ||  '9' < ch)
	{
	    if(' '==ch  ||  '\t'==ch  ||  '\n'==ch  ||  '\r'==ch)
	    {
		//Added everything up to "break;" to
		// handle (valid) strings with leading space(s) like " 39":
		//previous found was seconds_, so translate into ULONG:
		seconds_ = atol(&pTimeBuffer[bufIndx+1L]);
		timeValInMillisec += seconds_*1000; //converts seconds to ms.
		break; //we're done; we found seconds only.
	    }
	    else if('.' == ch)
	    {
		if(bDotEncounteredAlready)
		{
		    //Make sure pColorNm is in original state:
		    if(endCharWasChanged)
		    {
			pTimeBuffer[timeBufferLen-1] = savedEndChar;
		    }
		    if(indexOfDot >= 0)
		    {
			pTimeBuffer[indexOfDot] = '.';
		    }
		    //this second '.' is unexpected, so return with
		    //  timeValInMillisec set to whatever was read so far:
		    return FALSE;
		}

		bDotEncounteredAlready = TRUE;
		indexOfDot = bufIndx;
		pTimeBuffer[bufIndx] = '\0'; //end the buffr at the '.' .

		//previously-read #'s are milliseconds, so count them:
		//added "-1" to fix bug if buf ends with ".":
		if(1L > timeBufferLen-bufIndx)
		{
		    milliseconds_ = 0L;
		}
		else
		{
		    //Now, make sure that more than three digits (base 10)
		    //	are not present, e.g., reduce "46371" to "463" since
		    //	we only allow millisecond precision (3 digits past
		    //	the decimal point:
		    _CHAR chTmp = '\0';
		    ULONG32 ulNumDecimalDigitsFound = timeBufferLen-1 - bufIndx;
#if !defined(NUM_DECIMAL_DIGITS_OF_SECONDS)
# define NUM_DECIMAL_DIGITS_OF_SECONDS 3L
#endif
		    if(NUM_DECIMAL_DIGITS_OF_SECONDS <
			    ulNumDecimalDigitsFound)
		    {
			chTmp = pTimeBuffer[bufIndx+1L];
			pTimeBuffer[bufIndx+NUM_DECIMAL_DIGITS_OF_SECONDS+1]=
				'\0';
		    }
		    milliseconds_ = atol(&pTimeBuffer[bufIndx+1L]);
		    //Added this to fix "y.x" being converted
		    // to y00x instead of yx00 milliseconds:
		    if(ulNumDecimalDigitsFound < NUM_DECIMAL_DIGITS_OF_SECONDS)
		    {
			for(ULONG32 ulDiff=NUM_DECIMAL_DIGITS_OF_SECONDS
				-ulNumDecimalDigitsFound; ulDiff>0; ulDiff--)
			{
			    milliseconds_ *= 10;
			}
		    }

		    if(NUM_DECIMAL_DIGITS_OF_SECONDS <
			    ulNumDecimalDigitsFound)
		    {
			//restore the changed char in the pTimeBuffer:
			pTimeBuffer[
				bufIndx+NUM_DECIMAL_DIGITS_OF_SECONDS+1]=
				chTmp;
		    }
		}
		
		timeValInMillisec = milliseconds_;
	    } //end "else if('.' == ch)".
	    else if(':' == ch)
	    {
		bColonWasFound = TRUE;
		//previous found was seconds_, so translate into ULONG:
		seconds_ = atol(&pTimeBuffer[bufIndx+1L]);
		timeValInMillisec += seconds_*1000; //converts seconds to ms.
		break; //done with "seconds_[.milliseconds_]" part.
	    }
	    else
	    {
		//Make sure pColorNm is in original state:
		if(endCharWasChanged)
		{
		    pTimeBuffer[timeBufferLen-1] = savedEndChar;
		}
		if(indexOfDot >= 0)
		{
		    pTimeBuffer[indexOfDot] = '.';
		}
		//this char is unexpected, so return FALSE with
		//  timeValInMillisec set to whatever was read so far:
		return FALSE;
	    }
	} //end of "ch is a non-number" condition.
	else if(0L == bufIndx) //we're done with the buffer:
	{
	    //previous found was seconds_, so translate into ULONG:
	    seconds_ = atol(pTimeBuffer);
	    timeValInMillisec += seconds_*1000; //converts seconds to ms.
	    break; //done with "seconds_[.milliseconds_]" part.
	}
    } //end "for(bufIndx=timeBufferLen-1; ...".

    if(bColonWasFound) //then get the "minutes" part:
    {
	bColonWasFound = FALSE;
	//We've got the ":seconds.msecs" part, so lets get the hours part:
	for(bufIndx--; 0L<=bufIndx; bufIndx--)
	{
	    _CHAR ch = toupper(pTimeBuffer[bufIndx]);
	    if('0' > ch  ||  '9' < ch)
	    {
		if(' ' == ch  ||  '.' == ch)
		{
		    break;
		}
		else if(':' == ch)
		{
		    bColonWasFound = TRUE;
		    //previous found was seconds_, so translate into ULONG:
		    // (Note: this will do atol("min:sec") which ignores
		    // everything at & beyond the first non-num (":") char):
		    minutes_ = atol(&pTimeBuffer[bufIndx+1L]);
		    timeValInMillisec += minutes_*60000; //minutes to msec
		    break; //done w/ "minutes_:seconds_[milliseconds_]" part.
		}
		else  //unexpected char found, so quit parsing:
		{
		    //Make sure pTimeBuffer is in original state:
		    if(endCharWasChanged)
		    {
			pTimeBuffer[timeBufferLen-1] = savedEndChar;
		    }
		    if(indexOfDot >= 0)
		    {
			pTimeBuffer[indexOfDot] = '.';
		    }
		    //this char is unexpected, so return FALSE with
		    //  timeValInMillisec set to whatever was read so far:
		    return FALSE;
		}
	    } //end of "ch is a non-number" condition.
	    else if(0L == bufIndx) //we're done with the buffer:
	    {
		//previous found was seconds_, so translate into ULONG:
		minutes_ = atol(pTimeBuffer);
		timeValInMillisec += minutes_*60000; //minutes to msec
		break; //done w/ "minutes_:seconds_[milliseconds_]" part.
	    }
	} //end "for(; ...".
    } //end "if(bColonWasFound) //then get the "minutes" part:".
    if(bColonWasFound) //then get the "hours" part:
    {
	bColonWasFound = FALSE;
	//We've got the ":minutes.seconds.msec" part, so lets get the hours:
	for(bufIndx--; 0L<=bufIndx; bufIndx--)
	{
	    _CHAR ch = toupper(pTimeBuffer[bufIndx]);
	    if('0' > ch  ||  '9' < ch)
	    {
		if(' ' == ch  ||  '.' == ch)
		{
		    break;
		}
		else if(':' == ch)
		{
		    bColonWasFound = TRUE;
		    //previous found was minutes_, so translate into ULONG:
		    // (Note: this will do atol("hrs:min:sec") which ignores
		    // everything at & beyond the first non-num (":") char):
		    hours_ = atol(&pTimeBuffer[bufIndx+1L]);
		    timeValInMillisec += hours_*3600000; //hours to msec
		    break;//done w/ "hours_:minutes_:seconds_[milliseconds_]"
		}
		else  //unexpected char found, so quit parsing:
		{
		    //Make sure pTimeBuffer is in original state:
		    if(endCharWasChanged)
		    {
			pTimeBuffer[timeBufferLen-1] = savedEndChar;
		    }
		    if(indexOfDot >= 0)
		    {
			pTimeBuffer[indexOfDot] = '.';
		    }
		    //this char is unexpected, so return FALSE with
		    //  timeValInMillisec set to whatever was read so far:
		    return FALSE;
		}
	    } //end of "ch is a non-number" condition.
	    else if(0L == bufIndx) //we're done with the buffer:
	    {
		//previous found was seconds_, so translate into ULONG:
		hours_ = atol(pTimeBuffer);
		timeValInMillisec += hours_*3600000; //hours to msec
		break; //done w/ "hours_:minutes_:seconds_[milliseconds_]".
	    }
	} //end "for(; ...".
    } //end "if(bColonWasFound) //then get the "hours" part:".

    if(endCharWasChanged)
    {
	timeBufferLen++;
	//Restore the orignial pColorNm, in case end quote char was removed:
	pTimeBuffer[timeBufferLen-1] = savedEndChar;
    }
    
    if(indexOfDot >= 0)
    {
        pTimeBuffer[indexOfDot] = '.';
    }

    return TRUE;

} //end convertTimeStringToULONG32() function body.
*/