Difference between revisions of "ListXorY"

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m (examples should at least compile)
Line 29: Line 29:
 
list l1 = ["a","b","c","d"];
 
list l1 = ["a","b","c","d"];
 
list l2 = ["a","1","b","2","c","3"];
 
list l2 = ["a","1","b","2","c","3"];
 +
 +
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;
 +
}
  
 
default{
 
default{

Revision as of 23:33, 25 June 2010

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"];

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;

}

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-archive.secondlife.com/54/e4/194138/1.html