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  1. using System;
  2. using System.Text.RegularExpressions;
  3.  
  4. class Program
  5. {
  6.     static void Main(string[] args)
  7.     {
  8.         string regex = "^[^|]*\\|[^|]*\\|[^|]*\\|\\|";
  9.  
  10.         Console.WriteLine("abc|123|234||673");
  11.         Match myMatch = Regex.Match("abc|123|234||673", regex);
  12.         Console.WriteLine(myMatch.Success);
  13.  
  14.         Console.WriteLine("abc|def||123|456");
  15.         myMatch = Regex.Match("abc|def||123|456", regex);
  16.         Console.WriteLine(myMatch.Success);
  17.  
  18.         Console.WriteLine("abc|123|234|673||ab");
  19.         myMatch = Regex.Match("abc|123|234|673||ab", regex);
  20.         Console.WriteLine(myMatch.Success);
  21.  
  22.         Console.WriteLine("abc|123|234|673||ab||");
  23.         myMatch = Regex.Match("abc|123|234|673||ab||", regex);
  24.         Console.WriteLine(myMatch.Success);
  25.     }
  26. }
Success #stdin #stdout 0.07s 34048KB
comments (?)
stdin 
Standard input is empty
stdout 
abc|123|234||673
True
abc|def||123|456
False
abc|123|234|673||ab
False
abc|123|234|673||ab||
False
https://ideone.com/kHbjI4
language:
C# (gmcs 5.20.1)
created:
12 years ago
visibility:
secret

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