Beispiel #1
0
        public static MetadataNode TryParseNode(SourceToken[] Tokens, ref int Index)
        {
            MetadataNode Node = null;

            if (Tokens[Index].IsIdentifier)
            {
                int NewIndex = Index + 1;

                // Check whether it has a value
                if (Tokens[NewIndex].Text == "=" || Tokens[NewIndex].Text == "(")
                {
                    if (Tokens[NewIndex].Text == "=")
                    {
                        NewIndex++;
                    }

                    List <MetadataNode> NodeList = TryParseNodeList(Tokens, ref NewIndex);
                    if (NodeList != null)
                    {
                        Node  = new MetadataNode(Tokens[Index], NodeList);
                        Index = NewIndex;
                    }
                    else if (Tokens[NewIndex].IsIdentifier || Tokens[NewIndex].IsLiteral)
                    {
                        Node  = new MetadataNode(Tokens[Index], Tokens[NewIndex]);
                        Index = NewIndex + 1;
                    }
                }
                else
                {
                    Node  = new MetadataNode(Tokens[Index]);
                    Index = NewIndex;
                }
            }
            else if (Tokens[Index].IsLiteral)
            {
                Node = new MetadataNode(Tokens[Index]);
                Index++;
            }
            return(Node);
        }
Beispiel #2
0
        public static List <MetadataNode> TryParseNodeList(SourceToken[] Tokens, ref int Index)
        {
            List <MetadataNode> Nodes = null;

            if (Tokens[Index].Text == "(")
            {
                Nodes = new List <MetadataNode>();

                int NewIndex = Index + 1;
                if (Tokens[NewIndex].Text != ")")
                {
                    for (; ;)
                    {
                        // Read the next node
                        MetadataNode Node = TryParseNode(Tokens, ref NewIndex);
                        if (Node == null)
                        {
                            throw new NotImplementedException();
                        }

                        // Append it to the list
                        Nodes.Add(Node);

                        // Read the next delimiting comma
                        if (Tokens[NewIndex].Text == ")")
                        {
                            break;
                        }
                        if (Tokens[NewIndex].Text != ",")
                        {
                            throw new NotImplementedException();
                        }
                        NewIndex++;
                    }
                }
                Index = NewIndex + 1;
            }
            return(Nodes);
        }
Beispiel #3
0
        public static MetadataNode TryParseNode(SourceToken[] Tokens, ref int Index)
        {
            MetadataNode Node = null;
            if(Tokens[Index].IsIdentifier)
            {
                int NewIndex = Index + 1;

                // Check whether it has a value
                if (Tokens[NewIndex].Text == "=" || Tokens[NewIndex].Text == "(")
                {
                    if(Tokens[NewIndex].Text == "=") NewIndex++;

                    List<MetadataNode> NodeList = TryParseNodeList(Tokens, ref NewIndex);
                    if (NodeList != null)
                    {
                        Node = new MetadataNode(Tokens[Index], NodeList);
                        Index = NewIndex;
                    }
                    else if(Tokens[NewIndex].IsIdentifier || Tokens[NewIndex].IsLiteral)
                    {
                        Node = new MetadataNode(Tokens[Index], Tokens[NewIndex]);
                        Index = NewIndex + 1;
                    }
                }
                else
                {
                    Node = new MetadataNode(Tokens[Index]);
                    Index = NewIndex;
                }
            }
            else if (Tokens[Index].IsLiteral)
            {
                Node = new MetadataNode(Tokens[Index]);
                Index++;
            }
            return Node;
        }