Dataserver string to integer help

Consider the following code:

default 
{
    touch_start(integer num_detected) 
    {
        llRequestAgentData(llDetectedKey(0), DATA_BORN); 
    }
    dataserver(key kQueryid, string sData) 
    {
        llSay(0, "You were born on: " + sData);
    }
}

Dataserver returns the born date in the format YYYY-MM-DD, in a string.

I'd like to do some math against that string - such as...

iDays_old = (llGetDate() - sData)

I thought of pumping sData into a list, then parsing it somehow & doing a llList2Integer - but my list comprehension is shakey.

Any ideas on how I could convert the string that's returned from Dataserver into a usable integer? Ultimately, so I can get the number of days old an AV is as of today?


Thanks in advance for your help!

Well, if a - character is used as the separator, you can convert the string into a list by telling it to use '-' as the separator. That'll give you a list of 3 strings, which you can typecast to integers to get the 3 values for year, month and date. After that it's just math

list dateAsList = llParseString2List(sData, "-", "");

integer year = llList2Integer(dateAsList, 0);
integer month = llList2Integer(dateAsList, 1);
integer date = llList2Integer(dateAsList, 2);

default 
{
    touch_start(integer num_detected) 
    {
        llRequestAgentData(llDetectedKey(0), DATA_BORN); 
    }
    dataserver(key kQueryid, string sData)
    {
        list ymd = llParseString2List(sData, ["-"], []);
        integer year = llList2Integer(ymd, 0);
        integer month = llList2Integer(ymd, 1);
        integer day = llList2Integer(ymd, 2);
        llSay(0, "You were born on: " + ((string) month) + "/" + ((string) day) + "/" + ((string) year));
    }
}

Tested. There is an implicit cast in llList2Integer() which saves you here because llGetListEntryType(ymd) would return TYPE_STRING.

Once you have year, month, and day of both today and the user's birthdate, the easiest way to calculate the range is probably to convert both dates to Julian day numbers and subtract. I hacked the LSL code for this a while ago, but I'm away from my home computer. The algorithm is described here: http://www.astro.uu.nl/~strous/AA/en/reken/juliaansedag.html

You're wanting to go from a Gregorian date to a Julian day number.

Yay!! Thanks, guys! That was just the push I needed!

Here's the code I came up with, and it works! This will create a simple age detector (in days). My code is a little messy, and of course it's not accurate for a leap year. But newbies are getting a kick out of clicking it already!

Thanks again!

// Get Days Old
// Travis Lambert -- 10-19-2005 (504 days old) :)


list lTdy;
list lYmd;
float fYear;
float fMonth;
float fDay;
integer iDayTotal;
float fYMonth;
float fYDay;
float fBornFloat;
float fTmonth;
float fTday;
float fTodayFloat;
float fYearTotal;
string sToday;
string sName;

default 
{ 
    touch_start(integer num_detected) 
    { 
        llRequestAgentData(llDetectedKey(0), DATA_BORN); 
        sName = llDetectedName(0);
    } 
    dataserver(key kQueryid, string sData) 
    { 
        //determine born date
        list lYmd = llParseString2List(sData, ["-"], []); 
        float fYear = llList2Float(lYmd, 0); 
        float fMonth = llList2Float(lYmd, 1); 
        float fDay = llList2Float(lYmd, 2); 
        
        
        //seperate born month, day, year
        fYMonth = (fMonth / 12);
        fYDay = (fDay / 365);
        fBornFloat = fYear + fYMonth + fYDay;

        
        //determine today's date
        string sToday = llGetDate();
        list lTdy = llParseString2List(sToday, ["-"], []);
        float tyear = llList2Float(lTdy, 0);
        float tmonth = llList2Float(lTdy, 1);
        float tday = llList2Float(lTdy, 2);
        
        //seperate today's month, day, year
        fTmonth = (tmonth / 12);
        fTday = (tday / 365);
        fTodayFloat = tyear + fTmonth + fTday;
                
        
        //total up & compute
        fYearTotal = fTodayFloat - fBornFloat;
        iDayTotal = llRound((float) fYearTotal * 365.0);
        
        llSay(0,sName + " is " + (string) iDayTotal + " Days Old!");
  
        
        
    } 
}