ListXneqY

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Revision as of 23:28, 25 June 2010 by Void Singer (talk | contribs) (examples should at least compile)
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Function: integer ListXneqY(list lx, list ly);

Answers the question: is list X different from list Y?

Returns the number 1 if true, 0 if false

Note: requires also the function ListXnotY .

The opposite function is ListXequY .

See also: Lists

<lsl> integer ListXneqY(list lx, list ly) {

   if( llList2CSV( ListXnotY(lx,ly) ) == "") return FALSE;
   else return TRUE;

} </lsl>


Example:

<lsl> list l1 = ["a","b","c","d"]; list l2 = ["a","1","b","2","c","3"];

integer ListXneqY(list lx, list ly) {

   if( llList2CSV( ListXnotY(lx,ly) ) == "") return FALSE;
   else return TRUE;

}

list ListXnotY(list lx, list ly) {// return elements in X list that are not in Y list

   list lz = [];
   integer i = 0;
   integer n = llGetListLength(lx);
   for (; i < n; i++)
       if (llListFindList(ly,llList2List(lx,i,i)) == -1)
           lz += llList2List(lx,i,i);
   return lz;

}

default{

  state_entry() {
     llSay(0, "Are we different lists? " + (string)ListXneqY(l1,l2))
     //will say in this example: 1 , meaning yes.
  }

} </lsl>

Posted with the kind permission of Very Keynes, who originated this script June 2007 in the SL scripters forum http://forums-archive.secondlife.com/54/e4/194138/1.html