C Sharp: Difference between revisions

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     {
     {
         // Define a regular expression for repeated words.
         // Define a regular expression for repeated words.
         Regex rx = new Regex(@"\b(?<word>\w+)\s+(\k<word>)\b",
         Regex rx = new Regex(@"\b(?<word>\w+)\s+(\k<word>)\b");
          RegexOptions.Compiled | RegexOptions.IgnoreCase);


         // Define a test string.         
         // Define a test string.         
         string text = "The the quick brown fox  fox jumps over the lazy dog dog.";
         string text = "The the quick brown fox  fox jumps over the lazy dog dog.";
          
          
         // Find matches.
         // Find match.
         MatchCollection matches = rx.Matches(text);
         Match match = rx.Match(text);


         // Report the number of matches found.
         // Iterature through captures
         Console.WriteLine("{0} matches found in:\n  {1}",
         foreach (Capture c in match.captures) {
                          matches.Count,
          Console.WriteLine("Captured {c.Value}");
                          text);
 
        // Report on each match.
        foreach (Match match in matches)
        {
            GroupCollection groups = match.Groups;
            Console.WriteLine("'{0}' repeated at positions {1} and {2}", 
                              groups["word"].Value,
                              groups[0].Index,
                              groups[1].Index);
         }
         }
     }
     }
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