Thank you, cmickeyb, for a patch to ass two string functions

to OSSL.
Fixes Mantis #3173

OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs

@@ -43,6 +43,7 @@ using OpenSim.Region.ScriptEngine.Shared.ScriptBase;
 using OpenSim.Region.ScriptEngine.Interfaces;
 using OpenSim.Region.ScriptEngine.Shared.Api.Interfaces;
 using TPFlags = OpenSim.Framework.Constants.TeleportFlags;
+using System.Text.RegularExpressions;
 
 using LSL_Float = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLFloat;
 using LSL_Integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
@@ -1105,5 +1106,53 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 loginURI = config.Configs["GridInfo"].GetString("login", loginURI);
             return loginURI;
         }
+
+        public LSL_String osFormatString(string str, LSL_List strings)
+        {
+            CheckThreatLevel(ThreatLevel.Low, "osFormatString");
+            m_host.AddScriptLPS(1);
+
+            return String.Format(str, strings.Data);
+        }
+
+        public LSL_List osMatchString(string src, string pattern, int start)
+        {
+            CheckThreatLevel(ThreatLevel.High, "osMatchString");
+            m_host.AddScriptLPS(1);
+
+            LSL_List result = new LSL_List();
+
+            // Normalize indices (if negative).
+            // After normlaization they may still be
+            // negative, but that is now relative to
+            // the start, rather than the end, of the
+            // sequence.
+            if (start < 0)
+            {
+                start = src.Length + start;
+            }
+
+            if (start < 0 || start >= src.Length)
+            {
+                return result;  // empty list
+            }
+                 
+            // Find matches beginning at start position
+            Regex matcher = new Regex(pattern);
+            Match match = matcher.Match(src, start);
+            if (match.Success) 
+            {
+                foreach (System.Text.RegularExpressions.Group g in match.Groups)
+                {
+                    if (g.Success) 
+                    {
+                        result.Add(g.Value);
+                        result.Add(g.Index);
+                    }
+                }
+            }
+
+            return result;
+        }
     }
 }

OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs

@@ -31,6 +31,8 @@ using OpenSim.Region.ScriptEngine.Interfaces;
 using key = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
 using rotation = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Quaternion;
 using vector = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Vector3;
+using LSL_List = OpenSim.Region.ScriptEngine.Shared.LSL_Types.list;
+using LSL_String = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
 
 namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
 {
@@ -104,5 +106,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         string osGetGridNick();
         string osGetGridName();
         string osGetGridLoginURI();
+
+        LSL_String osFormatString(string str, LSL_List strings);
+        LSL_List osMatchString(string src, string pattern, int start);
+
     }
 }

OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs

@@ -38,6 +38,8 @@ using integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
 using vector = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Vector3;
 using rotation = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Quaternion;
 using key = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using LSL_List = OpenSim.Region.ScriptEngine.Shared.LSL_Types.list;
+using LSL_String = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
 
 namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
 {
@@ -262,6 +264,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             return m_OSSL_Functions.osGetGridLoginURI();
         }
 
+        public LSL_String osFormatString(string str, LSL_List strings)
+        {
+            return m_OSSL_Functions.osFormatString(str, strings);
+        }
+
+        public LSL_List osMatchString(string src, string pattern, int start)
+        {
+            return m_OSSL_Functions.osMatchString(src, pattern, start);
+        }
+
         public OSSLPrim Prim;
 
         [Serializable]