Difference between revisions of "LlList2String"

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(Corrected example to avoid laggy construction)
Line 15: Line 15:
 
         list my_list = ["a", 1, 2.0, <1,2,3>, <1,2,3,4>, llGetOwner()];
 
         list my_list = ["a", 1, 2.0, <1,2,3>, <1,2,3,4>, llGetOwner()];
 
         integer i;
 
         integer i;
         for (i=0;i<llGetListLength(my_list); ++i)
+
         integer end;
 +
        end = llGetListLength(my_list); //evaluate this ONCE do not check inside
 +
                                        //the for loop.
 +
                                        //for(i=0; i<llGetLIstLength(my_list); ++i)
 +
                                        //is a bad programming practice (it's slow)
 +
        for (i=0; i<end; ++i)
 
         {
 
         {
 
             llOwnerSay("string=" + llList2String(my_list,i)
 
             llOwnerSay("string=" + llList2String(my_list,i)

Revision as of 22:19, 21 June 2007

Summary

Function: string llList2String( list src, integer index );

Returns a string that is at index in src.

• list src
• integer index

index supports negative indexes. If the type of the entry at index in src is not a string it is typecast into a string.
If index is out of range it returns a null string.

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 index is out of bounds the script continues to execute without an error message.
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Examples

// Best viewed in Chat History (ctrl-h)
default
{
    state_entry()
    {
        list my_list = ["a", 1, 2.0, <1,2,3>, <1,2,3,4>, llGetOwner()];
        integer i;
        integer end;
        end = llGetListLength(my_list); //evaluate this ONCE do not check inside
                                        //the for loop.
                                        //for(i=0; i<llGetLIstLength(my_list); ++i)
                                        //is a bad programming practice (it's slow)
        for (i=0; i<end; ++i)
        {
            llOwnerSay("string=" + llList2String(my_list,i)
                        + "\n   integer=" + (string)llList2Integer(my_list,i)
                        + "\n   float=" + (string)llList2Float(my_list,i)
                        + "\n   vector=" + (string)llList2Vector(my_list,i)
                        + "\n   rot=" + (string)llList2Rot(my_list,i)
                        + "\n   key=" + (string)llList2Key(my_list,i) );
        }
    }
}

See Also

Articles

•  Negative Index

Deep Notes

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Signature

function string llList2String( list src, integer index );