示例#1
0
        /// <summary>
        /// Parse a formula, return the the tree
        /// </summary>
        /// <param name="input">The formula to be parsed.</param>
        /// <exception cref="ArgumentException">
        /// If formula could not be parsed
        /// </exception>
        /// <returns>Parse tree</returns>
        public static ParseTree ParseToTree(string input)
        {
            var tree = P.Parse(input);

            if (tree.HasErrors())
            {
                throw new ArgumentException("Failed parsing input <<" + input + ">>");
            }

            var intersects = tree.Root.AllNodes().Where(node => node.Is(GrammarNames.TokenIntersect));

            foreach (ParseTreeNode intersect in intersects)
            {
                var newLocation = new SourceLocation(intersect.Span.Location.Position - 1, intersect.Span.Location.Line, intersect.Span.Location.Column - 1);
                intersect.Span = new SourceSpan(newLocation, 1);
            }

            var quotedSheetNodes = tree.Root.AllNodes().Where(node => node.Is(GrammarNames.TokenSheetQuoted));

            foreach (ParseTreeNode quotedSheetNode in quotedSheetNodes)
            {
                PrefixInfo.FixQuotedSheetNodeForWhitespace(quotedSheetNode, input);
            }

            return(tree);
        }
示例#2
0
 /// <summary>
 /// Extract all of the information from a Prefix non-terminal
 /// </summary>
 public static PrefixInfo GetPrefixInfo(this ParseTreeNode prefix) => PrefixInfo.From(prefix);
示例#3
0
        /// <summary>
        ///     Initializes the current object based on the input ParseTreeNode
        /// </summary>
        /// <remarks>
        ///     For Reference nodes (Prefix ReferenceItem), it initialize the values derived from the Prefix node and
        ///     is re-invoked for the ReferenceItem node.
        /// </remarks>
        public void InitializeReference(ParseTreeNode node)
        {
            switch (node.Type())
            {
            case GrammarNames.Reference:
                PrefixInfo prefix = node.ChildNodes[0].GetPrefixInfo();
                Worksheet = prefix.HasSheet ? prefix.Sheet.Replace("''", "'") : "(Undefined sheet)";

                if (prefix.HasMultipleSheets)
                {
                    string[] sheets = prefix.MultipleSheets.Split(':');
                    Worksheet     = sheets[0];
                    LastWorksheet = sheets[1];
                }

                if (prefix.HasFileNumber)
                {
                    FileName = prefix.FileNumber.ToString();
                }
                else if (prefix.HasFileName)
                {
                    FileName = prefix.FileName;
                }
                else
                {
                    FileName = null;
                }

                InitializeReference(node.ChildNodes[1]);
                break;

            case GrammarNames.Cell:
                ReferenceType = ReferenceType.Cell;
                MinLocation   = node.ChildNodes[0].Token.ValueString;
                MaxLocation   = MinLocation;
                break;

            case GrammarNames.NamedRange:
                ReferenceType = ReferenceType.UserDefinedName;
                Name          = node.ChildNodes[0].Token.ValueString;
                if (FileName != null)
                {
                    MinLocation = "A1";
                }
                break;

            case GrammarNames.HorizontalRange:
                string[] horizontalLimits = node.ChildNodes[0].Token.ValueString.Split(':');
                ReferenceType = ReferenceType.HorizontalRange;
                MinLocation   = "A" + horizontalLimits[0];
                MaxLocation   = ConvertColumnToStr(MaxRangeWidth - 1) + horizontalLimits[1];
                break;

            case GrammarNames.VerticalRange:
                string[] verticalLimits = node.ChildNodes[0].Token.ValueString.Split(':');
                ReferenceType = ReferenceType.VerticalRange;
                MinLocation   = verticalLimits[0] + "1";
                MaxLocation   = verticalLimits[1] + MaxRangeHeight;
                break;

            case GrammarNames.RefError:
                ReferenceType = ReferenceType.RefError;
                MinLocation   = "A1";
                break;

            default:
                // UDFs
                MinLocation = "A1";
                break;
            }

            LocationString = node.Print();
        }