??? Interpreter

## imports ##
import sys, msvcrt, os

## variables ##
file = open(sys.argv[1], "r")
loadstring = file.read()
memory = []
lexed_loadstring = []
label_set = {}
index = 0
last_index = 0
compare_flag = []
compare = {"equal": 1, "greater": 2, "less": 3, "none": 0}
enums = {"condition": compare}

## functions ##
def evaluate(expression):
    if (expression == "true"): return 1
    elif (expression == "false"): return 0
    elif (expression[0] == "$"): return memory[int(expression[1:])]
    elif (expression[0] == "%"): return ord(expression[1])
    elif ("." in expression): return enums[expression.split(".")[0]][expression.split(".")[1]]

    return int(expression)

## lexer ##
while (len(loadstring) > index):
    if (loadstring[index] in """<>!#&/()='"+*,{}~|@QWERTYUIOPASDFGHJKLZXCVBNM%-$?.[^]_`0123456789qwertyuiopasdfghjklzxcvbnm"""):
        temporary_string = ""
        try:
            while (loadstring[index] in """<>!#&/()='"+*,{}~|@QWERTYUIOPASDFGHJKLZXCVBNM%-$?.[^]_`0123456789qwertyuiopasdfghjklzxcvbnm"""):
                temporary_string += loadstring[index]
                index += 1
        except: ...
        lexed_loadstring.append(temporary_string)
    elif (loadstring[index] == ";"):
        try:
            while (loadstring[index] != "\n"):
                index += 1
        except: ...
    elif (loadstring[index] == ":"):
        try:
            index += 1
            while (loadstring[index] != ":"):
                index += 1
        except: ...
    index += 1
index = 0
loadstring = lexed_loadstring

## labels ##
while (len(loadstring) > index):
    if (loadstring[index] == "initialize"):
        index += 1
        length = evaluate(loadstring[index])
        for i in range(length): memory.append(0)
    elif (loadstring[index] == "label"):
        index += 1
        name = evaluate(loadstring[index])
        label_set.update({name:index})
    index += 1
index = 0

## interpreter ##
while (len(loadstring) > index):
    if (loadstring[index] == "print"):
        index += 1
        isAscii = evaluate(loadstring[index])
        index += 1
        value = evaluate(loadstring[index]) if isAscii == 0 else chr(evaluate(loadstring[index]))
        print(value, end = "")
    elif (loadstring[index] == "getch"):
        index += 1
        isAscii = evaluate(loadstring[index])
        index += 1
        memory_index = evaluate(loadstring[index])
        value = int(msvcrt.getch()) if isAscii == 0 else ord(msvcrt.getch())
        memory[memory_index] = value
    elif (loadstring[index] == "getche"):
        index += 1
        isAscii = evaluate(loadstring[index])
        index += 1
        memory_index = evaluate(loadstring[index])
        value = int(msvcrt.getche()) if isAscii == 0 else ord(msvcrt.getche())
        memory[memory_index] = value
    elif (loadstring[index] == "push"):
        index += 1
        value = evaluate(loadstring[index])
        index += 1
        memory_index = evaluate(loadstring[index])
        memory[memory_index] = value
    elif (loadstring[index] == "add"):
        index += 1
        value0 = evaluate(loadstring[index])
        index += 1
        value1 = evaluate(loadstring[index])
        index += 1
        memory_index = evaluate(loadstring[index])
        memory[memory_index] = value0 + value1
    elif (loadstring[index] == "sub"):
        index += 1
        value0 = evaluate(loadstring[index])
        index += 1
        value1 = evaluate(loadstring[index])
        index += 1
        memory_index = evaluate(loadstring[index])
        memory[memory_index] = value0 - value1
    elif (loadstring[index] == "multiply"):
        index += 1
        value0 = evaluate(loadstring[index])
        index += 1
        value1 = evaluate(loadstring[index])
        index += 1
        memory_index = evaluate(loadstring[index])
        memory[memory_index] = value0 * value1
    elif (loadstring[index] == "divide"):
        index += 1
        value0 = evaluate(loadstring[index])
        index += 1
        value1 = evaluate(loadstring[index])
        index += 1
        memory_index = evaluate(loadstring[index])
        memory[memory_index] = value0 / value1
    elif (loadstring[index] == "mod"):
        index += 1
        value0 = evaluate(loadstring[index])
        index += 1
        value1 = evaluate(loadstring[index])
        index += 1
        memory_index = evaluate(loadstring[index])
        memory[memory_index] = value0 % value1
    elif (loadstring[index] == "compare"):
        index += 1
        value0 = evaluate(loadstring[index])
        index += 1
        value1 = evaluate(loadstring[index])
        compare_flag = [value0, value1]
    elif (loadstring[index] == "stop"):
        index += 1
        code = evaluate(loadstring[index])
        if (code != 0):
            print()
            os.system("pause")
        break
    elif (loadstring[index] == "jump"):
        index += 1
        comparison = evaluate(loadstring[index])
        index += 1
        label = label_set[evaluate(loadstring[index])]
        last_index = index

        if (comparison == 0):
            index = label
        elif (comparison == 1):
            if (compare_flag[0] == compare_flag[1]): index = label
        elif (comparison == 2):
            if (compare_flag[0] > compare_flag[1]): index = label
        else:
            if (compare_flag[0] < compare_flag[1]): index = label
        continue
    elif (loadstring[index] == "return"):
        index = last_index
        continue

    index += 1