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#!/usr/bin/env python3
# update/isil.py - script to download ISIL agencies
#
# Copyright (C) 2011-2025 Arthur de Jong
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301 USA
"""This script downloads a web page from the ISIL Registration Authority
and screen-scrapes the national and non-national ISIL agencies and
code prefixes."""
import re
import lxml.html
import requests
spaces_re = re.compile(r'\s+', flags=re.UNICODE)
# the web page that holds information on the ISIL authorities
download_url = 'https://slks.dk/english/work-areas/libraries-and-literature/library-standards/isil'
def clean(td):
"""Clean up the element removing unneeded stuff from it."""
s = lxml.html.tostring(td, method='text', encoding='utf-8').decode('utf-8')
return spaces_re.sub(' ', s.replace(u'\u0096', '')).strip()
if __name__ == '__main__':
response = requests.get(download_url, timeout=30)
response.raise_for_status()
print('# generated from ISIL Registration Authority, downloaded from')
print('# %s' % download_url)
# We hack the HTML to insert missing <TR> elements
content = response.text.replace('</TR>', '</TR><TR>')
document = lxml.html.document_fromstring(content)
# find all table rows
for tr in document.findall('.//tr'):
# find the rows with four columns of text
tds = tr.findall('td')
if len(tds) == 4 and clean(tds[0]).lower() != 'code':
props = {}
cc = clean(tds[0])
if tds[1].find('p') is not None:
props['country'] = clean(tds[1])
ra_a = tds[2].find('.//a')
if ra_a is not None:
props['ra'] = clean(tds[2])
props['ra_url'] = ra_a.get('href')
else:
props['ra'] = clean(tds[2])
print(
'%s$ %s' % (
cc, ' '.join(
'%s="%s"' % (x, y) for x, y in sorted(props.items()))))
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