?using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
namespace TQMS.BusinessLogicHelper
{
    /// <summary>
    /// HtmlCode 的摘要說明
    /// </summary>
    public class HtmlCode
    {
        /// <summary>
        /// HTML encode
        /// </summary>
        /// <param name="str">string</param>
        /// <returns></returns>
        public static string TextEncodeToHtml(string str)
        {
            str = str.Replace("&", "&amp;");
            str = str.Replace("'", "''");
            str = str.Replace("\"", "&quot;");
            str = str.Replace(" ", "&nbsp;");
            str = str.Replace("<", "&lt;");
            str = str.Replace(">", "&gt;");
            str = str.Replace("\n", "<br>");
            return str;
        }


        /// <summary>
        /// decode
        /// </summary>
        /// <param name="str">string</param>
        /// <returns></returns>
        public static string HtmlDecodeToText(string str)
        {
            str = str.Replace("<br>", "\n");
            str = str.Replace("&gt;", ">");
            str = str.Replace("&lt;", "<");
            str = str.Replace("&nbsp;", " ");
            str = str.Replace("&quot;", "\"");
            return str;
        }
    }
}