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entrance.py
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entrance.py
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from sys import argv
from storage import *
from interpret import *
from io import *
from platform import system
if system() == 'Windows':
import win_unicode_console
win_unicode_console.enable()
# Stack used in the interpreter
main_stack = Stack()
# Heap storage used in the interpreter
main_heaps = Heaps()
test_code_1 = 'push-1 \t\noutput-number\t\n \tend-program\n\n\n'
test_code_2 = ' \t \n \t\t\n\t\n \t\n\n\n'
version = '0.0.1'
def show_version():
global version
print('Whitespace Interpreter, version ' + version)
def check_argv():
"""
Check the arguments given by executing this python file.
"""
if len(argv) >= 2:
source_filename = argv[-1]
try:
with open(source_filename, 'r') as read_file:
source_code = read_file.readlines()
source_code = ''.join(source_code)
if len(argv) == 2:
run(source_code) # run
else:
if argv[1] in ['--run', '-r']:
run(source_code) # run
elif argv[1] in ['--show-steps', '-s']:
show_steps(source_code) # show steps
elif argv[1] in ['--step', '-p']:
step(source_code) # step
elif argv[1] in ['--debug', '-d']:
debug(source_code) # debug
elif argv[1] in ['--version', '-v']:
show_version() # version
elif argv[1] in ['--tutorial', '-t']:
usage_help() # tutorial
elif argv[1] in ['--help', '-h']:
interpret_help() # help
else:
print('Unknown option.')
interpret_help()
except FileNotFoundError:
print('Fatal error: file ' + source_filename + ' not found')
else:
print('Fatal error: no input file')
def main():
check_argv()
def run(script):
"""Directly run the script"""
script = strip_non_wsp(script)
instructions = split_insts(script)
execute_insts(instructions)
def show_steps(script):
"""Show each step of the script"""
script = strip_non_wsp(script)
instructions = split_insts(script)
for inst in instructions:
print(inst)
def step(script):
"""Run the script step by step"""
pass
def debug(script):
"""Run the script in debug mode"""
pass
def usage_help():
"""Show the usage of arguments"""
pass
def interpret_help():
"""Show how to use the interpreter"""
pass
if __name__ == '__main__':
main()