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#!/usr/bin/env python3
"""
Restores the original data that was used to populate the 'MTS_IO_MccMncTable.cpp' file.
Stores the result in a .csv file.
"""
########################################################################################################################
import re
import csv
import argparse
from typing import Dict, Iterable, Generator
########################################################################################################################
def init_argparse() -> argparse.ArgumentParser:
parser = argparse.ArgumentParser(description='Generate MCC/MNC table file from Website or CSV')
parser.add_argument('source', type=str)
parser.add_argument('target', type=str)
return parser
def mcc_int_to_mcc(src: str) -> str:
hash_ = int(src)
return "{:03x}".format(hash_)
def mnc_int_to_mnc(src: str) -> str:
hash_ = int(src)
hash_str = "{:03x}".format(hash_)
if hash_ & 0xf != 0xf:
return hash_str
else:
return hash_str[:-1]
def parse_code_line(line: str) -> Dict[str, str]:
left, right = line.split(' = ')
mcc_int, mnc_int = re.findall(r'\[(\d+)\]', left)
info = re.findall(r'"(.+)"', right)[0]
iso, country, country_code, carrier = info.split(',')
mcc = mcc_int_to_mcc(mcc_int)
mnc = mnc_int_to_mnc(mnc_int)
return {
'MCC': mcc,
'MNC': mnc,
'ISO': iso,
'Country': country,
'Country Code': country_code,
'Carrier': carrier
}
def parse_comment_line(line: str) -> Dict[str, str]:
match = re.search(
r'MCC\((.*)\) MNC\((.*)\) ISO\((.*)\) Country Code\((.*)\) Country\((.*)\) Carrier\((.*)\)',
line
)
# NOTE: The original file contains values of the "Code" and "Country" fields swapped.
mcc, mnc, iso, country, country_code, carrier = match.groups()
return {
'MCC': mcc,
'MNC': mnc,
'ISO': iso,
'Country': country,
'Country Code': country_code,
'Carrier': carrier
}
def mcc_mnc_from_cpp(src: str) -> Generator[Dict[str, str], None, None]:
with open(src) as f:
for line in f:
if line.startswith(" //MCC"):
yield parse_comment_line(line)
elif line.startswith(" m_mTable["):
yield parse_code_line(line)
def write_mcc_mnc_to_scv(data: Iterable[Dict[str, str]], target: str) -> None:
with open(target, 'w') as f:
fieldnames = ['MCC', 'MNC', 'ISO', 'Country', 'Country Code', 'Carrier']
writer = csv.DictWriter(f, fieldnames, delimiter=',', quotechar='"', lineterminator='\n', quoting=csv.QUOTE_ALL)
writer.writeheader()
for d in data:
writer.writerow(d)
########################################################################################################################
def main() -> int:
parser = init_argparse()
args = parser.parse_args()
data = mcc_mnc_from_cpp(args.source)
write_mcc_mnc_to_scv(data, args.target)
return 0
########################################################################################################################
if __name__ == "__main__":
ret = main()
exit(ret)
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