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  1. using System;
  2. using System.Globalization;
  3. using System.Linq;
  4. using System.Collections.Generic;
  5.  
  6. public class Test
  7. {
  8.  
  9.  
  10. 	public static void Main()
  11. 	{
  12.         var rangeStrings = new List<string> { "[a-d]", "[A-H]", "[c,d]", "[B,C]", "[03-05]" };
  13.         var separator = new[] { "-", "," };
  14.         IEnumerable<IEnumerable<string>> ranges = rangeStrings
  15.             .Select(rs =>
  16.             {
  17.                 string inner = rs.Replace("[", "").Replace("]", "");
  18.                 string[] token = inner.Split(separator, StringSplitOptions.RemoveEmptyEntries);
  19.                 bool isNumeric = token[0].All(Char.IsDigit);
  20.                 int start, end;
  21.                 if(isNumeric)
  22.                 {
  23.                     start = int.Parse(token.First());
  24.                     end = int.Parse(token.Last());
  25.                 }
  26.                 else
  27.                 {
  28.                     start = (int)token.First().First();
  29.                     end = (int)token.Last().Last();
  30.                 }
  31.                 var range = Enumerable.Range(start, end - start + 1)
  32.                     .Select(i => isNumeric ? i.ToString() : ((Char)i).ToString());
  33.                 return range;
  34.             });
  35.  
  36.             foreach (var range in ranges)
  37.             {
  38.                 Console.WriteLine("Range: {0}", string.Join(",", range.ToArray()));
  39.             }
  40. 	}
  41. }
Success #stdin #stdout 0.06s 34912KB
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stdin
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Standard input is empty
stdout
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Range: a,b,c,d
Range: A,B,C,D,E,F,G,H
Range: c,d
Range: B,C
Range: 3,4,5
https://ideone.com/GChcWD
language:
C# (gmcs 5.20.1)
created:
12 years ago
visibility:
public

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