code/DataType/DataTypeFactory.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Text.RegularExpressions;

namespace WR_Excel
{
    public static class DataTypeFactory
    {
        private static Dictionary<string, Type> _dict = new Dictionary<string, Type>();
        static DataTypeFactory()
        {
            _dict["int"] = typeof(DataTypeInt);
            _dict["int[]"] = typeof(DataTypeInt1d);
            _dict["int[][]"] = typeof(DataTypeInt2d);
            _dict["int64"] = typeof(DataTypeLong);
            _dict["long"] = typeof(DataTypeLong);

            _dict["float"] = typeof(DataTypeFloat);
            _dict["double"] = typeof(DataTypeDouble);

            _dict["str"] = typeof(DatafieldType);
            _dict["string"] = typeof(DatafieldType);
            _dict["string[]"] = typeof(DataTypeString1d);
            _dict["str[]"] = typeof(DataTypeString1d);
            _dict["str[|]"] = typeof(DataTypeString1d);

            _dict["item"] = typeof(DataTypeItem);
            _dict["item[]"] = typeof(DataTypeItem1d);
            _dict["item[][]"] = typeof(DataTypeItem2d);

            _dict["attr"] = typeof(DataTypeAttr);
            _dict["attr[]"] = typeof(DataTypeAttr1d);
            _dict["attr[][]"] = typeof(DataTypeAttr2d);

        }


        public static DataType CreateDataType(string desp, string name, string fieldType, int col)
        {
            DataType dataType = null;
            string type = fieldType.ToLower();
            if (_dict.ContainsKey(type))
            {
                var dt = Activator.CreateInstance(_dict[type], desp, name, type, col);
                dataType = dt as DataType;
            }
            else
            {
                if (type.StartsWith("int"))
                {
                    //int[,]
                    if (Regex.IsMatch(type, @"int\[\W?\]"))
                    {
                        dataType = new DataTypeInt1d(desp, name, type, col);
                    }
                    //int[,;],int[,][;]
                    else if (Regex.IsMatch(type, @"int\[\W{2}\]") ||