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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Text.RegularExpressions;
  5.  
  6.  
  7. public class Test
  8. {
  9. 	public static void Main()
  10. 	{
  11. 		var input = "aaa +12 bbb 123,456,789 ccc -34 dd 12,345e-42";
  12. 		foreach (var value in GetValues(input))
  13. 		    Console.WriteLine(value);
  14. 	}
  15.  
  16. 	public static IEnumerable<string> GetValues(string input)
  17. 	{
  18.         // Suppose regex could be any regex
  19. 		var regex = new Regex(@"(?<concat>[\+-])?(?<concat>[0-9]+)(?:,(?<concat>[0-9]{3}))*(?<concat>[eE][-+]?[0-9]+)?");
  20.  
  21. 		foreach (Match match in regex.Matches(input))
  22. 		{
  23.             // Does this regex have our special feature?
  24. 			if (regex.GroupNumberFromName("concat") >= 0)
  25. 			{
  26.                 // Concat the captured values
  27. 			    var captures = match.Groups["concat"].Captures.Cast<Capture>().Select(c => c.Value).ToArray();
  28. 			    yield return String.Concat(captures);
  29. 			}
  30. 			else
  31. 			{
  32.                 // This is a normal regex
  33. 				yield return match.Value;	
  34. 			}
  35. 		}
  36. 	}
  37. }
Success #stdin #stdout 0.09s 34192KB
comments (?)
stdin
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Standard input is empty
stdout
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+12
123456789
-34
12345e-42
https://ideone.com/dCgTMF
language:
C# (gmcs 5.20.1)
created:
11 years ago
visibility:
public

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