DAL- countrec() with a special case

Consider this...
<root>
     <bb>abcd</bb>
     <bb>xyza</bb>
     <bb>xyza</bb>
     <bb>abcd</bb>
     <bb>rwaa</bb>
     <bb>abcd</bb>
     <bb>abcd</bb>
</root>
i want to find the number of <bb> tags... whose value is not the same as previous one...
here it should be 5 (as "xyza" and "abcd" appears consecutively)
But...countrec("!/root/bb") fetches 7
Thanks in advance !!!
Navin.

Hi Navin,
I haven't seen any available rule or function to do what you are looking at. I am also not sure if you are looking at a one line simple method. But this is what I was able to find for you. A simple DAL function named "CUSCOUNTREC" given below:
#srchmask = CountRec("!/Form/bb");
#index = 2;
#cuscountrec = 0;
prvvalue = "";
curvalue = "";
While( #index <= #srchmask )
     prvvalue = Trim( GetData("!/Form/bb["&(#index-1)&"] 1,20") )
     curvalue = Trim( GetData("!/Form/bb["&(#index)&"] 1,20") )
     #strcomp = STRCompare(prvvalue,curvalue)
     If(#strcomp!=0)
          #cuscountrec+=1
     End
     #index+=1
Wend
IF(#srchmask>0)
          #cuscountrec+=1
END
RETURN (#cuscountrec);
Two important things to note here are:
1. I have hard-coded the Search mask as "!/Form/bb"
2. I have assumed that the field "bb" will be maximum 20 bytes in length.
However you can have these two things controlled using the GVM (by making use of SetGVM, HaveGVM functions from wherever you would want to call).
Thank you.

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