htmlタグを正規フィルタ

    class Class1

    {

        /// <summary>

        ///  HTML 

        /// </summary>

        /// <param name="strHtml"> HTML  </param>

        /// <returns> </returns>

       public static string StripHTML(string strHtml)

        {

            string[] aryReg ={

         @"<script[^>]*?>.*?</script>",



          @"<(\/\s*)?!?((\w+:)?\w+)(\w+(\s*=?\s*(([""'])(file://[""'tbnr]|[^/7])*?/7|/w+)|.{0})|/s)*?(///s*)?>",

          @"([\r
])[\s]+",

          @"&(quot|#34);",

          @"&(amp|#38);",



          @"&(lt|#60);",

          @"&(gt|#62);", 

          @"&(nbsp|#160);", 

          @"&(iexcl|#161);",

          @"&(cent|#162);",

          @"&(pound|#163);",

          @"&(copy|#169);",

          @"&#(\d+);",

          @"-->",

          @"<!--.*
"

        

         };



           string[] aryRep = {

           "",

           "",

           "",

           "\"",

           "&",

           "<",

           ">",

           " ",

           "\xa1",//chr(161),

           "\xa2",//chr(162),

          "\xa3",//chr(163),

           "\xa9",//chr(169),

           "",

           "\r
",

           ""

          };



            string newReg = aryReg[0];

            string strOutput = strHtml;

            for (int i = 0; i < aryReg.Length; i++)

            {

                Regex regex = new Regex(aryReg[i], RegexOptions.IgnoreCase);

                strOutput = regex.Replace(strOutput, aryRep[i]);

            }



            strOutput.Replace("<", "");

            strOutput.Replace(">", "");

            strOutput.Replace("\r
", "");





            return strOutput;

        }

    }