Elog, C# interpreter

using System.Collections.Generic;
using System;

namespace Elog {
    public class Elog {
        public static void Main(string[] args) {
            if(args.Length == 1) run(System.IO.File.ReadAllText(args[0]), "");
            else if(args.Length > 1) {
                string f = System.IO.File.ReadAllText(args[0]);
                for(int i = 1; i < args.Length; run(f, args[i++])) ;
            }
        }

        public static void run(string s, string inr) {
            int cur = 0, sts = 0;
            Stack<bool> st = new Stack<bool>();
            bool[] ins = new bool[inr.Length];
            int[] vars = new int[256];
            for(int i=0;i<256;vars[i++] = -1);
            for(int i=0;i<inr.Length;ins[i] = (inr[i++]-'0'==0?false:true));
            foreach(char c in s) {
                if(sts == 0) {
                    if(c == ';') sts = 2;
                    else if(c == ':') sts = 1;
                    else if(c == '.') st.Push(st.Peek());
                    else if(c == '\'') st.Push(st.Pop()?false:true);
                    else if(c == '&') st.Push(st.Pop() && st.Pop());
                    else if(c == '|') st.Push(st.Pop() || st.Pop());
                    else if(c == '^') st.Push(st.Pop() ^ st.Pop());
                    else if(c == '0') st.Push(false);
                    else if(c == '1') st.Push(true);
                    else if(c > 20) {
                        if(vars[c] == -1) vars[c] = (ins[cur++]?1:0);
                        if(vars[c] > -1) st.Push(vars[c]==1);
                    }
                } else if(sts == 1 && c > 20) {
                    vars[c] = (st.Pop()?1:0);
                    sts = 0;
                } else if(c > 20) if(c == '0' || c == '1') Console.Write(c); else Console.Write(vars[c]);
            }
            Console.WriteLine();
        }
    }
}