fork download
using System;
using System.Text.RegularExpressions;

namespace TestThat
{
    class MainClass
    {
        public static void Main (string[] args)
        {
			Console.WriteLine(Regex.Replace(
						@"HelloWORld",
						@"(?<!^)(?<wordstart>\p{Lu}{1,2})", 
						@" ${wordstart}",
						RegexOptions.Compiled));
			Console.WriteLine(Regex.Replace(
						@"ÉclaireürfØÑJßå",
						@"(?<!^)(?<wordstart>\p{Lu}{1,2})", 
						@" ${wordstart}",
						RegexOptions.Compiled));
        }
    }
}
Success #stdin #stdout 0.06s 38360KB
stdin
Standard input is empty
stdout
Hello WO Rld
?claire?rf ?? J??