How to handle Apostrophe

Hi All,
I want to match words from my database and for that i use regular expression to ignore html tags my expression is "

<script.*/*>|</script>|<.[^>]*>

". But it dont handle words comes with apostrophe like Dont't, It's and so on.

Below is the Method that i am using to return the words

private string HighlightSearchKeyWords(string TextToHighlight, string TextAsDiscription, string text)
        {
            string ProcessedText = text;
            var pattern = keywordPattern(TextToHighlight);
            
            string TagExpression = "<script.*/*>|</script>|<.[^>]*>";
            Regex reg = new Regex("(" + TagExpression + ")|(" + pattern + ")", RegexOptions.IgnoreCase | RegexOptions.Multiline);
            MatchReplacement = "<span id='" + TextToHighlight.ToString() +"_Span"+ "' style='background-color: yellow; cursor: hand;' onmouseover='javascript:SaveMouseOVerWords(this,this.id)' onmouseout='javascript:HideContent()' mytitle='" + TextAsDiscription + "'>$1</span>";//onmouseout='javascript:HideContent()'
            ProcessedText = reg.Replace(ProcessedText, new MatchEvaluator(MatchEval));
            return ProcessedText;
        }

But this method return the words with apostrophe also and i want ignore those words
Please suggest what should add in my existing expression so that he handle apostrophe as well.

NOTE:

My problem is i have read all the browser content in a string and now i am trying match list of words with the browser content, when the word match i highlight that word, but word like "abstract or absolute" which come with style tag also get highlight. i want to escape those words that come inside HTML style tag. In order to escape all tag inside script tag i have written "<script.*/*>|</script>|<.[^>]*>" . so i want to add someting in the existing regex expression to escape all style tag.

Waiting for your response.

Thanks
AP

Tags: ASP.NET