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Highlight keyword in string

/ Published in: C#
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  1. public string HighlightKeywords(string input, string keywords)
  2.         {
  3.             if (input == string.Empty || keywords == string.Empty)
  4.             {
  5.                 return input;
  6.             }
  7.  
  8.             var keywordChar = keywords.Split(' ');
  9.             foreach (var keyword in keywordChar)
  10.             {
  11.                 try
  12.                 {
  13.                     input = Regex.Replace(input, keyword, string.Format("<span class=\"highlight\">{0}</span>", "$0"), RegexOptions.IgnoreCase);
  14.                 }
  15.                 catch (Exception)
  16.                 {
  17.                     // Log the error.
  18.                 }
  19.             }
  20.  
  21.             return input;
  22.         }

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