LlListInsertList

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Revision as of 15:36, 14 July 2008 by Chaz Longstaff (Talk | contribs)

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Summary

Function: list llListInsertList( list dest, list src, integer start );

Returns a list that is src inserted into dest at position start.

• list dest
• list src
• integer start

start supports negative indexes.

Specification

Index Positive Negative
First 0 -length
Last length - 1 -1

Indexes

  • Positive indexes count from the beginning, the first item being indexed as 0, the last as (length - 1).
  • Negative indexes count from the far end, the first item being indexed as -length, the last as -1.

Caveats

  • If start is out of bounds the script continues to execute without an error message.
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Examples

<lsl> list numbers = [3, "three", 2, "two", 1, "one"]; default {

   state_entry()
   {
       llOwnerSay(llDumpList2String(numbers, ","));
       // Object: 3,three,2,two,1,one
       integer index = llListFindList(numbers, [2]);
       if (index != -1)
       {
           numbers = llListInsertList(numbers, [2.5, "two and a half"], index);
           llOwnerSay(llDumpList2String(numbers, ","));
           // Object: 3,three,2.500000,two and a half,2,two,1,one
       }
   }

}

</lsl>

Notes

Bear in mind that the source list will remain unchanged. Instead, a new list will be produced. So, it's important that you capture this with a variable (unless you are acting directly on the results.)


Tip! To insert something at the start of a list, you can just add the two lists (putting the list with the new item(s) first)

<lsl> list oldList = ["B", "C", "D"]; list newItem = ["A"]; list newlist = newItem + oldList; </lsl>

See Also

Functions

• llDeleteSubList
• llList2List
• llListReplaceList

Articles

•  Negative Index

Deep Notes

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Signature

function list llListInsertList( list dest, list src, integer start );