Integer parsing from a char variable?

vegastech · September 2009

I have a char string that I want to parse the numeric portion out of. I know the numeric portion starts at character 6 everytime. (I am checking a variable that gets the TP's keypad entry dumped into it, so I know it will always start with KEYP-). The purpose of this is to take the keypad's number entry, place that number into an integer variable, and then execute a timeline. Is this possible with my train of thought, or is there a better way to do this?

trustworthy · September 2009

use ATOI which converts ASCII to INTEGER.
Check these forums and the tech notes for examples

Very simply

IF ( FIND_STRING ( DATA.TEXT, "KEYP-", 1) )
{
REMOVE_STRING (DATA.TEXT, "KEYP-", 1)
nSOMEVARIABLE = ATOI (LEFT_STRING ( DATA.TEXT, 1) )
}

TN# 616 is a great example on how to parse buffers. You can use many methods within that basic structure to get the characters and numbers you want. Also try MID_STRING: you can start counting halfway through the string if you want and extract only the number of characters you want.

vegastech · September 2009

OMG I got it working!

For anyone interested, here is the string parsing and string to decimal conversion process that worked for me:

DATA_EVENT[dvJVCLT37X898Tp] //keypad entries
{
STRING:
	{
		sKeypad = DATA.TEXT
		
			
			IF (FIND_STRING(sKeypad,'KEYP-',1))
				{
					REMOVE_STRING (sKeypad, 'KEYP-',1)
					
					nsleep = ATOI(sKeypad)
					nsleep = nsleep*60
					
					SEND_COMMAND dvJVCLT37X898Tp, "'^TXT-10,0,',nSleep"
					TimeArray[1] = 1000
					TIMELINE_CREATE(MBedSleep, TimeArray, 1,TIMELINE_ABSOLUTE,TIMELINE_REPEAT)
				}
        }
}

Now I can enter minutes into the onboard keypad, and it starts to decrement showing the correct format, based on the following timeline event and formatting:

TIMELINE_EVENT[MBedSleep]  //sleep timer, captures all events
{
	SWITCH(TIMELINE.SEQUENCE)
	{
	CASE 1:
		{
			nminutes = nSleep/60
			nseconds = nSleep mod 60
			nSleep--
			If (nSleep>0)
			{
				SEND_COMMAND dvJVCLT37X898Tp,"'^TXT-10,0,',ITOA(nminutes),':',right_string("'00',itoa(nseconds)",2)"
			}
		
			ELSE
			{
				SEND_COMMAND dvJVCLT37X898Tp,"'^TXT-10,0,ROOMOFF'"
				SEND_COMMAND vdvJVCLT37X898, "'PASSTHRU-!',$82,$80,'PW0',$0A"
				TIMELINE_KILL(MBedSleep)
			}
		}
	}
}

I feel so accomplished. I couldn't have done this without all of you. Thank you! It's not pretty, but hey, that's what the TPDesign course is for, right?

Integer parsing from a char variable?

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