using System using System Collections Generic using System IO using Sy

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FirstUtil
{
    class Program
    {
        public static void Main(String[] args)
        {
            Lexer l = new Compiler().GetLexer(File.ReadAllText(args[0]));
            l.Run();
        }
    }

    class Compiler 
    {
        SortedList<Position, Message> messages;
        Dictionary<string, int> nameCodes;
        List<string> names;

        public Compiler() {
            messages = new SortedList<Position, Message>();
            nameCodes = new Dictionary<string, int>();
            names = new List<string>();
        }

        public Lexer GetLexer(string program) {
            return new Lexer(program, this);
        }

        public int AddName(string name) {
            if (nameCodes.ContainsKey(name))
                return nameCodes[name];
            else 
            {
                int code = names.Count;
                names.Add(name);
                nameCodes[name] = code;
                return code;
            }
        }
        public string GetName(int code) {
            return names[code];
        }

        public void AddMessage(Position pos, Message msg) {
            messages[pos] = msg;
        }
    }
}