Difference between revisions of "ListXorY"

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Join two lists to make one new combined list, while also eliminating any resulting duplicates in the new list.
 
Join two lists to make one new combined list, while also eliminating any resulting duplicates in the new list.
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See also: [[List|Lists]]
  
 
<lsl>
 
<lsl>

Revision as of 16:57, 12 July 2008

Function: list ListXorY(list lx, list ly);

Join two lists to make one new combined list, while also eliminating any resulting duplicates in the new list.

See also: Lists

<lsl> list ListXorY(list lx, list ly){ // add the lists eliminating duplicates

   list lz = []; integer x;
   for (x = 0; x < llGetListLength(ly); ++x){
       if (~llListFindList(lx,llList2List(ly,x,x))){
           ;
       }
       else {
           lz = lz + llList2List(ly,x,x);
       }
   }
   return lx + lz;

} </lsl>


Example:

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

default{

  state_entry() {
     llSay(0, "The new combined list is: " + llList2CSV(ListXorY(l1,l2)) );
     //will say: a, b, c, d, 1, 2, 3
  }

} </lsl>

Posted with the kind permission of Very Keynes, who originated this script June 2007 in the SL scripters forum http://forums.secondlife.com/showthread.php?t=194138