#! /usr/bin/python3

import sys

from parser import UrlParser
from printer import print_ast

#---
# fx-92 SC+ interpreter
#---

pass

#---
# Main program
#---

usage_string = f"""
usage: {sys.argv[0]} <wes.casio.com URL>
""".strip()

def usage(exitcode=None):
    print(usage_string, file=sys.stderr)

    if exitcode is not None:
        sys.exit(exitcode)

def main(argv):
    args = argv[1:]

    if not args or "-h" in args or "--help" in args or "-?" in args:
        usage(0)
    if len(args) != 1:
        usage(1)

    parser = UrlParser(args[0])
    ast = parser.parse_program()
    ast = ast.simplify()

    print_ast(ast, lang="ast")

if __name__ == "__main__":
    main(sys.argv)