Small LINQ to JSON Library

using System;
using System.Text.RegularExpressions;
using System.Collections.Generic;

namespace Ranslant.JSON.Linq
{
    public class JNumber : IJValue
	{
        private static string Culture = "en-US";
        private const string Pattern = @"^-?([1-9][0-9]*|0)(\.[0-9]+)?((e|E)(\+|-)?[0-9]+)?$";    // see http://www.json.org

        private double _content;
        public double Content
        {
            get
            {
                return this._content;
            }
        }

        public JNumber(double number)
        {
            _content = number;
        }

        /// <summary>
        /// The text representing the number to be stored is checked for validity.
        /// An exception will be thrown if an error is found.
        /// </summary>
        /// <param name="text">a string representing the number to be stored</param>
        public JNumber(string text)
        {
            IsValidJsonNumber(text);
            _content = Double.Parse(text, System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.GetCultureInfo(JNumber.Culture));
        }

        private void IsValidJsonNumber(string text)
        {
            if (!Regex.IsMatch(text, Pattern, RegexOptions.ExplicitCapture))
                throw new JsonException("invalid number: " + text);
        }

        #region IJValue Members

        public string ToString(int indentLevel)
        {
            return this.ToString();
        }

        public new string ToString()
        {
            return _content.ToString(System.Globalization.CultureInfo.GetCultureInfo(JNumber.Culture));
        }

        #endregion
    }
}