OpenSim.Region.ScriptEngine.Shared.Api.OSSL_Api.osListenRegex C# (CSharp) Method

        public LSL_Integer osListenRegex(int channelID, string name, string ID, string msg, int regexBitfield)
        {
            CheckThreatLevel(ThreatLevel.Low, "osListenRegex");
            m_host.AddScriptLPS(1);
            UUID keyID;
            UUID.TryParse(ID, out keyID);

            // if we want the name to be used as a regular expression, ensure it is valid first.
            if ((regexBitfield & ScriptBaseClass.OS_LISTEN_REGEX_NAME) == ScriptBaseClass.OS_LISTEN_REGEX_NAME)
            {
                try
                {
                    Regex.IsMatch("", name);
                }
                catch (Exception)
                {
                    OSSLShoutError("Name regex is invalid.");
                    return -1;
                }
            }

            // if we want the msg to be used as a regular expression, ensure it is valid first.
            if ((regexBitfield & ScriptBaseClass.OS_LISTEN_REGEX_MESSAGE) == ScriptBaseClass.OS_LISTEN_REGEX_MESSAGE)
            {
                try
                {
                    Regex.IsMatch("", msg);
                }
                catch (Exception)
                {
                    OSSLShoutError("Message regex is invalid.");
                    return -1;
                }
            }

            IWorldComm wComm = m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
            return (wComm == null) ? -1 : wComm.Listen(
                m_host.LocalId,
                m_item.ItemID,
                m_host.UUID,
                channelID,
                name,
                keyID,
                msg,
                regexBitfield
            );
        }