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042e314589
Languages must always be configured through config or environment. Also use monkeypatched environment in tests.
79 lines
2.8 KiB
Python
79 lines
2.8 KiB
Python
# SPDX-License-Identifier: GPL-2.0-only
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#
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# This file is part of Nominatim. (https://nominatim.org)
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#
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# Copyright (C) 2022 by the Nominatim developer community.
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# For a full list of authors see the git log.
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"""
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Module containing the SPWikiLoader class.
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"""
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import re
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import logging
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from collections.abc import Iterator
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from nominatim.tools.special_phrases.special_phrase import SpecialPhrase
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from nominatim.tools.exec_utils import get_url
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LOG = logging.getLogger()
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class SPWikiLoader(Iterator):
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"""
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Handles loading of special phrases from the wiki.
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"""
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def __init__(self, config):
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super().__init__()
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self.config = config
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# Compile the regex here to increase performances.
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self.occurence_pattern = re.compile(
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r'\| *([^\|]+) *\|\| *([^\|]+) *\|\| *([^\|]+) *\|\| *([^\|]+) *\|\| *([\-YN])'
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)
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self._load_languages()
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def __next__(self):
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if not self.languages:
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raise StopIteration
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lang = self.languages.pop(0)
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loaded_xml = self._get_wiki_content(lang)
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LOG.warning('Importing phrases for lang: %s...', lang)
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return self.parse_xml(loaded_xml)
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def parse_xml(self, xml):
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"""
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Parses XML content and extracts special phrases from it.
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Return a list of SpecialPhrase.
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"""
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# One match will be of format [label, class, type, operator, plural]
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matches = self.occurence_pattern.findall(xml)
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returned_phrases = set()
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for match in matches:
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returned_phrases.add(
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SpecialPhrase(match[0], match[1], match[2], match[3])
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)
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return returned_phrases
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def _load_languages(self):
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"""
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Get list of all languages from env config file
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or default if there is no languages configured.
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The system will extract special phrases only from all specified languages.
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"""
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if self.config.LANGUAGES:
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self.languages = self.config.get_str_list('LANGUAGES')
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else:
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self.languages = [
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'af', 'ar', 'br', 'ca', 'cs', 'de', 'en', 'es',
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'et', 'eu', 'fa', 'fi', 'fr', 'gl', 'hr', 'hu',
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'ia', 'is', 'it', 'ja', 'mk', 'nl', 'no', 'pl',
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'ps', 'pt', 'ru', 'sk', 'sl', 'sv', 'uk', 'vi']
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@staticmethod
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def _get_wiki_content(lang):
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"""
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Request and return the wiki page's content
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corresponding to special phrases for a given lang.
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Requested URL Example :
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https://wiki.openstreetmap.org/wiki/Special:Export/Nominatim/Special_Phrases/EN
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"""
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url = 'https://wiki.openstreetmap.org/wiki/Special:Export/Nominatim/Special_Phrases/' \
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+ lang.upper()
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return get_url(url)
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