System.Globalization.Localization.GetNodeType C# (CSharp) Method

        private static NodeType GetNodeType(string line)
        {
            NodeType node = NodeType.WhiteSpace;
            if (line.StartsWith("msgid"))
            {
                node = NodeType.MsgID;
                if (line.StartsWith("msgid_plural"))
                    node = NodeType.MsgID_Plural;
            }
            else if (line.StartsWith("msgstr"))
            {
                node = NodeType.MsgStr;
                if (line.StartsWith("msgstr[0] "))
                    node = NodeType.MsgStrWithBrakets;
                else if (line.StartsWith("msgstr[1] "))
                    node = NodeType.MsgStr_Plural;
                else if (line.StartsWith("msgstr["))
                    node = NodeType.Ignore;
            }
            else if (line.StartsWith("#"))
            {
                node = NodeType.TranslatorComment;
                if (line.StartsWith("#."))
                    node = NodeType.ExtractedComment;
                else if (line.StartsWith("#:"))
                    node = NodeType.Reference;
                else if (line.StartsWith("#,"))
                    node = NodeType.Flag;
                else if (line.StartsWith("#|"))
                    node = NodeType.PreviousUntranslatedString;
            }
            else if (line.StartsWith("\""))
            {
                node = NodeType.Continued;
            }
            return node;
        }