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Regular Expressions

Lots of C# Regular Expressions

//This example demonstrates the use of named backreferences within the replacement pattern for Regex.Replace. Here, the replacement expression ${day} inserts the substring captured by the group (?<day>…).
//
//The Regex.Replace function is one of several static functions that enable you to use regular expression operations without creating an explicit regular expression object. This is convenient when you do not want to keep the compiled regular expression.
// msdn library

String MDYToDMY(String input)
   {
      return Regex.Replace(input,
         "\\b(?<month>\\d{1,2})/(?<day>\\d{1,2})/(?<year>\\d{2,4})\\b",
         "${day}-${month}-${year}");
   }

//This code extracts the file extension from a filename and displays it //using asp.net

<%# Regex.Replace(DataBinder.Eval(Container.DataItem,
"SourceFileName").ToString(), "(?<file>.+[.]+)+(?<ext>.+)+", "${ext}")%>

// Remove all characters after the full path (arguments

// c:\windows\test.exe -startup -> c:\windows\test.exe

public static string Arguments(string fullpath)

{

Match m11 = Regex.Match(fullpath, ".*[.]exe");

return (m11.Value);

}

// Remove quote characters from string

// "c:\windows\test.exe -startup" -> c:\windows\test.exe -startup

public static string RemoveQuotes(string fullpath)

{

return(fullpath.Replace("\"",""));

}

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