C#Homework7_CountingWordInText

using System;
using System.Text.RegularExpressions;
using System.IO;

    class CountingAWord
    {
        //Write a program that counts how many times a given word occurs in given text. The first line in the input holds the word.
        //The second line of the input holds the text. The output should be a single integer number – the number of word occurrences.
        //Matching should be case-insensitive. Note that not all matching substrings are words and should be counted.
        //A word is a sequence of letters separated by punctuation or start / end of text.

        static void Main()
        {
            Console.SetIn(new StreamReader(Console.OpenStandardInput(8192))); //increases console input maximum length.

            string searchWord = Console.ReadLine();
            string pattern = @"\b" + searchWord + @"\s*\b";
            string text = Console.ReadLine();
            string[] words = text.Split(new char[] { ' ', ',', '.', ':', '\t', '(', ')', '/' });
            int count = 0;
            foreach (Match match in Regex.Matches(text, pattern, RegexOptions.IgnoreCase))
            {
                count++;
            }
            Console.WriteLine(count);
        }
    }