Metrologia

Program.cs

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

namespace Metrologia
{
    internal static class Program
    {
        private static void Main(string[] args)
        {
            var filename = args[0];
            var code = File.ReadAllText(filename);

            var operators = new List<string>()
            {
                "+",
                "-",
                "*",
                "/",
                "%",

                "++",
                "--",

                ">",
                "<",
                "<=",
                ">=",
                "==",
                "!=",

                "&",
                "|",
                "^",
                "~",
                "<<",
                ">>",
                ">>>",

                "===",
                "!==",

                "=",
                "+=",
                "-=",
                "*=",
                "/=",

                "instanceof",
                "in",
                "function",
                "delete",
                "new",
                "this",
                "typeof",
                "void",
                "eval",
                ".",
                "[]",
                ",",
                "&&",
                "||",
                "!",
                "while",
                "do",

                ">>=",
                "<<=",
                ">>>=",
                "&=",
                "|="
            };

            var dictionary = new Dictionary<string, int>();
            foreach (var i in operators)
            {
                var reg = $"\\s+{Regex.Escape(i)}\\s+";
                var exp = new Regex(reg, RegexOptions.Compiled);
                var count = exp.Matches(code).Count;
                dictionary.Add(i, count);
            }
            dictionary.Add("?:", Regex.Matches(code, @"\w+\s+\?\s+\w+\s+\:\s+\w+").Count);
            
            PrintTableOfOperators(dictionary);
        }

        public static void PrintTableOfOperators(Dictionary<string, int> arraydic)
        {
            int all = 0, unique = 0;
            const string title = "  j | Оператор        |  F1j ";
            Console.WriteLine(title);
            Console.WriteLine(new string('-', title.Length));
            foreach (var it in arraydic.Where(x => x.Value > 0))
            {
                var op = it.Key;
                var val = it.Value;
                switch (it.Key)
                {
                    case "do": op = "do {} while ()";
                        break;
                    case "while":
                        val -= arraydic["do"];
                        break;
                }
                all += it.Value;
                
                Console.WriteLine("{0} | {1} | {2}", (++unique).ToString().PadLeft(3), op.PadRight(15), val.ToString().PadLeft(5));
            }

            Console.WriteLine("\n     Общее число операторов, N₁: {0}", all);
            Console.WriteLine("Число уникальных операторов, η₁: {0}", unique);
        }

        public static void PrintTableOfOperands(Dictionary<string, int> arraydic)
        {
            int N1 = 0, number = 1;
            Console.WriteLine("j\tОперанд\tF2j ");
            foreach (var it in arraydic)
            {
                Console.WriteLine("{0}\t{1}\t\t{2}", number++.ToString(), it.Key, it.Value);
                N1 += it.Value;
            }

            Console.WriteLine("Общее число операндов в программе N2 = {0}", N1);
            Console.WriteLine("Число уникальных операндов = {0}\n", --number);
        }
    }
}