match any sequence of letters in any case - CSharp Language Basics

CSharp examples for Language Basics:Regex

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Description

match any sequence of letters in any case

Demo Code



using System;//from   w  ww.  j av a2  s  .  com
using System.Text.RegularExpressions;

class MainClass
{
   static void Main( string[] args )
   {
      string testString = "abc, DEF, 123";
      Console.WriteLine( "The test string is: \"{0}\"", testString );


      // match any sequence of letters in any case
      Console.WriteLine( "\nMatch a group of at least one letter" );
      DisplayMatches( testString, "[a-zA-Z]+" );

   }


   // display the matches to a regular expression
   private static void DisplayMatches( string input, string expression )
   {
      foreach ( var regexMatch in Regex.Matches( input, expression ) )
         Console.Write( "{0} ", regexMatch );

      Console.WriteLine(); // move to the next line
   }   
}

Result


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