问如何在UWP中的中使用REGEXP

EN

using System;
using SQLitePCL.pretty;
using System.Text.RegularExpressions;

namespace TestSqlite
{ 
    class Program
    {
        static void Main(string[] args)
        {
            Func<ISQLiteValue, ISQLiteValue, ISQLiteValue> regexFunc =
                        (ISQLiteValue val, ISQLiteValue regexStr) =>
                        {
                            if (Regex.IsMatch(Convert.ToString(val), Convert.ToString(regexStr)))
                                return true.ToSQLiteValue();
                            return false.ToSQLiteValue();
                        };
            SQLitePCL.Batteries.Init();
            SQLiteDatabaseConnection _dbcon = SQLiteDatabaseConnectionBuilder
                        .InMemory
                        .WithScalarFunc("REGEXP", regexFunc)
                        .Build();
            string sql = "CREATE TABLE foo (a int, b text);";
            _dbcon.ExecuteAll(sql);
            _dbcon.ExecuteAll(@"INSERT INTO foo VALUES (1, 'this is me');
                                INSERT INTO foo VALUES (2, 'that is me');
                                INSERT INTO foo VALUES (3, 'he is me');");
            sql = "SELECT * FROM foo where '\\w{4} is me' REGEXP b;";
            foreach (var row in _dbcon.Query(sql)) { Console.WriteLine(row[1].ToString()); }
        }
    }
}