02.8a.09.Dictionary

using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;

class DictionaryFirst
{
    static void TextSearch(string wordToFind, Dictionary<string, string> before)
    {
        foreach (KeyValuePair<string, string> kvp in before)
        {
            if ((wordToFind == kvp.Key) == true)
            {
                string answer = string.Format("{0} - {1}", kvp.Key, kvp.Value);
                Console.WriteLine(answer);
                Environment.Exit(0);
            }
        }
        Console.WriteLine("The word can not be found.");
    }

    static void Main()
    {
        string dictionary = ".NET - platform for applications from Microsoft\n" +
            "CLR - managed execution environment for .NET\n" +
            "namespace - hierarchical organization of classes";

        Dictionary<string, string> before = new Dictionary<string, string>();

        string pattern = @"(?<before>.+) - (?<after>.+)";
        string input = dictionary;
        MatchCollection matches = Regex.Matches(input, pattern);

        for (int i = 0; i < matches.Count; i++)
        {
            before.Add((matches[i].Groups["before"].ToString().Trim(' ')), matches[i].Groups["after"].ToString().Trim(' '));
        }
        string wordToFind = "namespace";
        TextSearch(wordToFind, before);
    }
}