regexProblem_01

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Numerics;
using System.Text;
using System.Text.RegularExpressions;

namespace Feb26_2018
{
    class MainClass
    {
        /* The input will consist of a single line, containing the text,
         * that Bojomon and Didimon are going to match. */

        public static void Main()
        {
            var patternBojo = @"\b([A-Za-z]+-[A-Za-z]+)\b";
            var patternDidi = @"[^A-Z[a-z-]";
            var input = "^^^^pika-pika^^^^";//Console.ReadLine();

            //char[] sep = {'\S'};
            // var inputSplit = input.Split(sep, StringSplitOptions.RemoveEmptyEntries);
            //string separ = @"\w";
            //string[] splitInput = Regex.Split(input, separ);
            //Console.Write(string.Join(", ", splitInput));
            //var inputSplitByDidi = input.Split(patternDidi);
            //Match matchBojo = patternBojo.Match(input);

            var matchDidi = Regex.Matches(input, patternDidi);
            var matchBojo = Regex.Matches(input, patternBojo);

            Regex didi = new Regex(patternDidi);//patternDidi
            Regex bojo = new Regex(patternBojo);
            bool inputHasDidi = didi.IsMatch(input);
            bool inputHasBojo = bojo.IsMatch(input);
            MatchCollection matchedDidi = didi.Matches(input);
            MatchCollection matchedBojo = bojo.Matches(input);

            foreach(var item in input)
            {
                if (inputHasDidi)
                {

                    foreach (var did in matchedDidi)
                    {
                        Console.Write(did);
                    }
                }
                else if (inputHasBojo)
                {
                    foreach (var boj in matchedBojo)
                    {
                        Console.Write(boj);
                    }
                }
                Console.WriteLine();
            }
        }
    }
}