fItemPlugin.ItemRules.Core.Parser.ParseAtom C# (CSharp) Метод

        private void ParseAtom(ParseNode parent)
        {
            Token tok;
            ParseNode n;
            ParseNode node = parent.CreateNode(scanner.GetToken(TokenType.Atom), "Atom");
            parent.Nodes.Add(node);

            tok = scanner.LookAhead(TokenType.VARIABLE, TokenType.STRING, TokenType.NUMBER, TokenType.BOOLEAN, TokenType.BROPEN);
            switch (tok.Type)
            {
                case TokenType.VARIABLE:
                    tok = scanner.Scan(TokenType.VARIABLE);
                    n = node.CreateNode(tok, tok.ToString());
                    node.Token.UpdateRange(tok);
                    node.Nodes.Add(n);
                    if (tok.Type != TokenType.VARIABLE)
                    {
                        tree.Errors.Add(new ParseError("Unexpected token '" + tok.Text.Replace("\n", "") + "' found. Expected " + TokenType.VARIABLE.ToString(), 0x1001, 0, tok.StartPos, tok.StartPos, tok.Length));
                        return;
                    }
                    break;
                case TokenType.STRING:
                    tok = scanner.Scan(TokenType.STRING);
                    n = node.CreateNode(tok, tok.ToString());
                    node.Token.UpdateRange(tok);
                    node.Nodes.Add(n);
                    if (tok.Type != TokenType.STRING)
                    {
                        tree.Errors.Add(new ParseError("Unexpected token '" + tok.Text.Replace("\n", "") + "' found. Expected " + TokenType.STRING.ToString(), 0x1001, 0, tok.StartPos, tok.StartPos, tok.Length));
                        return;
                    }
                    break;
                case TokenType.NUMBER:
                    tok = scanner.Scan(TokenType.NUMBER);
                    n = node.CreateNode(tok, tok.ToString());
                    node.Token.UpdateRange(tok);
                    node.Nodes.Add(n);
                    if (tok.Type != TokenType.NUMBER)
                    {
                        tree.Errors.Add(new ParseError("Unexpected token '" + tok.Text.Replace("\n", "") + "' found. Expected " + TokenType.NUMBER.ToString(), 0x1001, 0, tok.StartPos, tok.StartPos, tok.Length));
                        return;
                    }
                    break;
                case TokenType.BOOLEAN:
                    tok = scanner.Scan(TokenType.BOOLEAN);
                    n = node.CreateNode(tok, tok.ToString());
                    node.Token.UpdateRange(tok);
                    node.Nodes.Add(n);
                    if (tok.Type != TokenType.BOOLEAN)
                    {
                        tree.Errors.Add(new ParseError("Unexpected token '" + tok.Text.Replace("\n", "") + "' found. Expected " + TokenType.BOOLEAN.ToString(), 0x1001, 0, tok.StartPos, tok.StartPos, tok.Length));
                        return;
                    }
                    break;
                case TokenType.BROPEN:

                    tok = scanner.Scan(TokenType.BROPEN);
                    n = node.CreateNode(tok, tok.ToString());
                    node.Token.UpdateRange(tok);
                    node.Nodes.Add(n);
                    if (tok.Type != TokenType.BROPEN)
                    {
                        tree.Errors.Add(new ParseError("Unexpected token '" + tok.Text.Replace("\n", "") + "' found. Expected " + TokenType.BROPEN.ToString(), 0x1001, 0, tok.StartPos, tok.StartPos, tok.Length));
                        return;
                    }

                    ParseExpr(node);

                    tok = scanner.Scan(TokenType.BRCLOSE);
                    n = node.CreateNode(tok, tok.ToString());
                    node.Token.UpdateRange(tok);
                    node.Nodes.Add(n);
                    if (tok.Type != TokenType.BRCLOSE)
                    {
                        tree.Errors.Add(new ParseError("Unexpected token '" + tok.Text.Replace("\n", "") + "' found. Expected " + TokenType.BRCLOSE.ToString(), 0x1001, 0, tok.StartPos, tok.StartPos, tok.Length));
                        return;
                    }
                    break;
                default:
                    tree.Errors.Add(new ParseError("Unexpected token '" + tok.Text.Replace("\n", "") + "' found.", 0x0002, 0, tok.StartPos, tok.StartPos, tok.Length));
                    break;
            }

            parent.Token.UpdateRange(node.Token);
        }