using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace _03.WordsOccurences
{
    class WordsOcc
    {
        static void CountWords(string[] words)
        {
            Dictionary<string, int> table = new Dictionary<string, int>();
            for (int i = 0; i < words.Length; i++)
            {
                if (!table.ContainsKey(words[i]))
                {
                    table.Add(words[i], 1);
                }
                else
                {
                    int value = 0;
                    table.TryGetValue(words[i], out value);
                    value++;
                    table[words[i]] = value;
                }
            }

            List<KeyValue> list = new List<KeyValue>();

            foreach (var item in table)
            {
                KeyValue kv = new KeyValue();
                kv.Count = item.Value;
                kv.Word = item.Key;
                list.Add(kv);
            }

            list.Sort();

            foreach (var item in list)
            {
                Console.WriteLine("{0} --> {1}",item.Word, item.Count );
            }
        }
        class KeyValue : IComparable
        {
            public int Count { get; set; }
            public string Word { get; set; }


            public int CompareTo(object obj)
            {
                KeyValue kv = obj as KeyValue;
                return this.Count.CompareTo(kv.Count);
            }
        }
        static void Main(string[] args)
        {
            string str = "This is the TEXT. Text, text, text – THIS TEXT! Is this the text?";
            str = str.ToLower();
            char[] delimiters = { ' ', '-', '–', '?', '!', ',', '.' };
            string[] words = str.Split(delimiters, StringSplitOptions.RemoveEmptyEntries);
            CountWords(words);
        }
    }
}