# -*- coding: utf-8 -*-
"""IPv6 Router Alert Option Values
=====================================
.. module:: pcapkit.vendor.ipv6.router_alert
This module contains the vendor crawler for **IPv6 Router Alert Option Values**,
which is automatically generating :class:`pcapkit.const.ipv6.router_alert.RouterAlert`.
"""
import csv
import re
import sys
from pcapkit.vendor.default import Vendor
__all__ = ['RouterAlert']
[docs]
class RouterAlert(Vendor):
"""IPv6 Router Alert Option Values"""
#: Value limit checker.
FLAG = 'isinstance(value, int) and 0 <= value <= 65535'
#: Link to registry.
LINK = 'https://www.iana.org/assignments/ipv6-routeralert-values/ipv6-routeralert-values-1.csv'
def process(self, data: 'list[str]') -> 'tuple[list[str], list[str]]':
"""Process CSV data.
Args:
data: CSV data.
Returns:
Enumeration fields and missing fields.
"""
reader = csv.reader(data)
next(reader) # header
enum = [] # type: list[str]
miss = [] # type: list[str]
for item in reader:
name = item[1]
rfcs = item[2]
temp = [] # type: list[str]
for rfc in filter(None, re.split(r'\[|\]', rfcs)):
if 'RFC' in rfc and re.match(r'\d+', rfc[3:]):
#temp.append(f'[{rfc[:3]} {rfc[3:]}]')
temp.append(f'[:rfc:`{rfc[3:]}`]')
else:
temp.append(f'[{rfc}]'.replace('_', ' '))
desc = self.wrap_comment(re.sub(r'\r*\n', ' ', '%s %s' % ( # pylint: disable=consider-using-f-string
name, ''.join(temp) if rfcs else '',
), re.MULTILINE))
try:
code, _ = item[0], int(item[0])
renm = self.rename(name, code)
pres = f"{renm} = {code}"
sufs = f'#: {desc}'
#if len(pres) > 74:
# sufs = f"\n{' '*80}{sufs}"
#enum.append(f'{pres.ljust(76)}{sufs}')
enum.append(f'{sufs}\n {pres}')
except ValueError:
start, stop = map(int, item[0].split('-'))
if 'Level' in name:
base = name.rstrip('s 0-31')
for tmp_code in range(start, stop+1):
renm = self.safe_name(f'{base}_{tmp_code-start}')
pres = f"{renm} = {tmp_code}"
#if len(pres) > 74:
# sufs = f"\n{' '*80}{sufs}"
#enum.append(f'{pres.ljust(76)}{sufs}')
enum.append(f'#: {desc}\n {pres}')
else:
miss.append(f'if {start} <= value <= {stop}:')
miss.append(f' #: {desc}')
miss.append(f" return extend_enum(cls, '{name}_%d' % value, value)")
return enum, miss
if __name__ == '__main__':
sys.exit(RouterAlert()) # type: ignore[arg-type]