From e3a6a370fafdb94f16fd97e4e86699839e425f99 Mon Sep 17 00:00:00 2001
From: Justin Clarke Casey
Date: Wed, 16 Apr 2008 16:07:34 +0000
Subject: * From: Alan M Webb <awebb@vnet.ibm.com> * Here's an updated
 ListInsertList implementation, tested to be LL compliant.

---
 .../ScriptEngine/Common/LSL_BuiltIn_Commands.cs    | 49 +++++++++++++++++++++-
 1 file changed, 47 insertions(+), 2 deletions(-)

(limited to 'OpenSim')

diff --git a/OpenSim/Region/ScriptEngine/Common/LSL_BuiltIn_Commands.cs b/OpenSim/Region/ScriptEngine/Common/LSL_BuiltIn_Commands.cs
index 9de7c0e..39d8473 100644
--- a/OpenSim/Region/ScriptEngine/Common/LSL_BuiltIn_Commands.cs
+++ b/OpenSim/Region/ScriptEngine/Common/LSL_BuiltIn_Commands.cs
@@ -2779,10 +2779,55 @@ namespace OpenSim.Region.ScriptEngine.Common
             return new LSL_Types.Vector3(World.RegionInfo.RegionLocX * Constants.RegionSize, World.RegionInfo.RegionLocY * Constants.RegionSize, 0);
         }
 
-        public LSL_Types.list llListInsertList(LSL_Types.list dest, LSL_Types.list src, int start)
+        /// <summary>
+        /// Insert the list identified by <src> into the
+        /// list designated by <dest> such that the first
+        /// new element has the index specified by <index>
+        /// </summary>
+
+        public LSL_Types.list llListInsertList(LSL_Types.list dest, LSL_Types.list src, int index)
         {
+      
+            LSL_Types.list pref = null;
+            LSL_Types.list suff = null;
+
             m_host.AddScriptLPS(1);
-            return dest.GetSublist(0, start - 1) + src + dest.GetSublist(start, -1);
+
+            if(index < 0)
+            {
+                index = index+src.Length;
+                if(index < 0)
+                {
+                    index = 0;
+                }
+            }
+
+            if(index != 0)
+            {
+                pref = dest.GetSublist(0,index-1);
+                if(index < dest.Length)
+                {
+                    suff = dest.GetSublist(index,-1);
+                    return pref + src + suff;
+                }
+                else
+                {
+                    return pref + src;
+                }
+            }
+            else
+            {
+                if(index < dest.Length)
+                {
+                    suff = dest.GetSublist(index,-1);
+                    return src + suff;
+                }
+                else
+                {
+                    return src;
+                }
+            }
+
         }
 
         /// <summary>
-- 
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