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  1. using System;
  2. using System.Text;
  3. using System.Text.RegularExpressions;
  4. using System.Collections.Generic;
  5.  
  6. public class Test
  7. {
  8.  
  9. public static string Format(string formatWithNames, IDictionary<string, object> data) {
  10. 	int pos = 0;
  11.     var args = new List<object>();
  12. 	var fmt = Regex.Replace(
  13. 		formatWithNames
  14. 	,   @"(?<={)[^}]+(?=})"
  15. 	,   new MatchEvaluator(m => {
  16.             var res = (pos++).ToString();
  17.             var tok = m.Groups[0].Value.Split(':');
  18.             args.Add(data[tok[0]]);
  19.             return tok.Length == 2 ? res+":"+tok[1] : res;
  20.         })
  21. 	);
  22.     return string.Format(fmt, args.ToArray());
  23. }
  24.  
  25. 	public static void Main()
  26. 	{
  27.  
  28.  
  29. var x = new Dictionary<string,object> {
  30.     {"brown", 123}
  31. ,   {"jumps", 21}
  32. ,   {"lazy", 42}
  33. };
  34. Console.WriteLine("{0}", Format("Quick {brown} fox {jumps:C} over the {lazy:P} dog", x));
  35.  
  36. 	}
  37. }
Success #stdin #stdout 0.12s 24592KB
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stdin
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Standard input is empty
stdout
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Quick 123 fox $21.00 over the 4,200.00 % dog
https://ideone.com/wiTkDF
language:
C# (gmcs 5.20.1)
created:
8 years ago
visibility:
public

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