using System;
using System.Linq;
using System.Collections.Generic;
using System.Text.RegularExpressions;
public class Test
{
	public static void Main()
	{
	    var s = "[ad-sad]asd.,/?|\":{{}[a!@#$%^&()**d [en]aedasd;";
	    var results = Regex.Matches(s, @"\[([\w-]+)](.*?)(?=\[[\w-]+]|$)")
		 		.Cast<Match>()
		 		.Select(x => new[] {x.Groups[1].Value, x.Groups[2].Value});
	    foreach (var result in results) 
	    {
	        Console.WriteLine($"{result[0]} => {result[1]}");
	    }
	}
}

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