LlListFindList

Function notes

If test is not found in src, -1 (in LSL) or nil (in SLua) is returned.

The index of the first entry in the list is 0

If test is found at the last index in src the positive index is returned (5th entry of 5 returns 4).

Caveats

Strict type matching and case sensitivity is enforced.
- "1" != 1
- "1.0" != 1.0
- 1 != 1.0
- "a822ff2b-ff02-461d-b45d-dcd10a2de0c2" != (key)"a822ff2b-ff02-461d-b45d-dcd10a2de0c2"
- "Justice" != "justice"
If test is an empty list the value returned is 0 rather than -1.

Examples

list numbers = [1, 2, 3, 4, 5];
default
{
    state_entry()
    {
        integer index = llListFindList(numbers, [3]);
        if (index != -1)
        {
            list three_four = llList2List(numbers, index, index + 1);
            llOwnerSay(llDumpList2String(three_four, ","));
            // Object: 3,4
        }
    }
}

//You can also search for two items at once to find a pattern in a list
list avatarsWhoFoundMagicLeaves = ["Fire Centaur","Red Leaf"];
default
{
    state_entry()
    {
        integer index = llListFindList(avatarsWhoFoundMagicLeaves, ["Fire Centaur","Red Leaf"]);
        if (index != -1)
        {
            list output = llList2List(avatarsWhoFoundMagicLeaves, index, index + 1);
            llOwnerSay(llDumpList2String(output, ","));
            // Object: Fire Centaur, Red Leaf
        }
    }
}

Helper functions

An easy way to see if an item exists in a list...

if(~llListFindList(myList, (list)item))
{//it exists
    // This works because ~(-1) produces 0, but ~ of any other value produces non-zero and causes the 'if' to succeed
    // So any return value (including 0) that corresponds to a found item, will make the condition succeed
    // It saves bytecode and is faster then doing != -1
    // This is a bitwise NOT (~) not a negation (-)
}

Shared wiki helpers

The original page also injects shared parameter notes, caveats or issue information through these helpers. Their conditional MediaWiki logic is not reproduced here; inspect the preserved helper source for additional material.

Template:Issues/SVC-5146

Original shared helper source (conditional wiki logic is not evaluated)

{{Issues|SVC-5146|'''llSortedListFindList'''() - improved [[llListFindList]]() for known to be sorted lists|type=nf}}

Template:Issues/BUG-10924