jfz-2023-s473555/TaskC06/run.py

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2023-11-28 15:17:39 +01:00
import re
import sys
import csv
from numpy import append
DEBUG = False
alfabet = "xyz"
SEMICOLON = ";"
# sys.setrecursionlimit(4100)
def print_debug(*args, **kwargs):
if DEBUG:
print(*args, **kwargs)
if len(sys.argv) == 1:
print("Default arguments parsed\n")
sys.argv.append("medium.in")
sys.argv.append("medium.exp")
with open(sys.argv[1], mode="r", newline="", encoding="utf8") as csvfile:
filereader = csv.reader(csvfile, delimiter="\t", quotechar="|")
fsa_description = list(filereader)
# skip first line with comment
if fsa_description[0][0][0] == "#":
fsa_description = fsa_description[1:]
# get accepting states
accepting_states = []
fsa_description_map: dict[tuple[str, str], list[str]] = {}
fsa_description_direction: dict[str, list[tuple[str, str]]] = {}
is_error = False
for num, item in enumerate(fsa_description):
if len(item) == 1:
accepting_states.append(item[0])
continue
for letter in item[2]:
if letter not in alfabet:
print_debug(
"WARNING - letter not in alfabet: ", letter, "| line:", num + 1
)
tupleItems = (item[0], letter)
if (item[0], letter) in fsa_description_map:
print_debug(
f"WARNING - duplicate letter: key = ({item[0]} | {letter}) | line: {num + 1}"
)
# append to description map or create it if it doesn't exist
fsa_description_map[tupleItems] = fsa_description_map.get(
tupleItems, []
) + [item[1]]
fsa_description_direction[item[0]] = fsa_description_direction.get(
item[0], []
) + [(item[1], letter)]
if is_error:
exit(-1)
states = {}
for item in fsa_description_map:
states[item[0]] = states[item[0]] + item[1] if item[0] in states else item[1]
from collections import Counter
# check if all letters are used once
def is_permutation(str1, str2):
return Counter(str1) == Counter(str2)
def find_missing_letters(str1, str2) -> str:
missing_letters = ""
for char in str2:
if char not in str1:
missing_letters += char
return missing_letters
for state in states:
if not is_permutation(states[state], alfabet):
print_debug(
f"WARNING - state {state} doesn't match full alphabet: {states[state]} | {alfabet} | diff - {find_missing_letters(states[state], alfabet)}"
)
# exit(-1)
with open(sys.argv[2], mode="r", newline="", encoding="utf8") as file:
content = file.read()
test_out = content.splitlines()
def is_correct(current_state: str) -> bool:
if current_state in accepting_states:
return True
return False
def find_language(current_state: str) -> list[str]:
good_end_states: list[str] = []
for next_state, description in fsa_description_direction[current_state]:
new_good_end_states = find_language(next_state)
for new_good_end_state in new_good_end_states:
if new_good_end_state != "" and new_good_end_state != "-1":
good_end_states.append(description + new_good_end_state)
if is_correct(current_state):
return [""]
else:
return ["-1"]
return good_end_states
is_difference = []
current_state = "0"
language = find_language(current_state)
# language.sort(key=lambda x: x.encode("utf-8"))
for i, word in enumerate(language):
if i > 10:
break
if word != test_out[i]:
is_difference.append(i + 1)
print(word, test_out[i])
else:
print(word)
if len(is_difference) != 0:
print(is_difference)