Source code for searx.search.processors.online_currency
# SPDX-License-Identifier: AGPL-3.0-or-later
"""Processors for engine-type: ``online_currency``
"""
import unicodedata
import re
from searx.data import CURRENCIES
from .online import OnlineProcessor
parser_re = re.compile('.*?(\\d+(?:\\.\\d+)?) ([^.0-9]+) (?:in|to) ([^.0-9]+)', re.I)
def normalize_name(name: str):
name = name.strip()
name = name.lower().replace('-', ' ').rstrip('s')
name = re.sub(' +', ' ', name)
return unicodedata.normalize('NFKD', name).lower()
[docs]
class OnlineCurrencyProcessor(OnlineProcessor):
"""Processor class used by ``online_currency`` engines."""
engine_type = 'online_currency'
[docs]
def get_params(self, search_query, engine_category):
"""Returns a set of :ref:`request params <engine request online_currency>`
or ``None`` if search query does not match to :py:obj:`parser_re`."""
params = super().get_params(search_query, engine_category)
if params is None:
return None
m = parser_re.match(search_query.query)
if not m:
return None
amount_str, from_currency, to_currency = m.groups()
try:
amount = float(amount_str)
except ValueError:
return None
from_currency = CURRENCIES.name_to_iso4217(normalize_name(from_currency))
to_currency = CURRENCIES.name_to_iso4217(normalize_name(to_currency))
params['amount'] = amount
params['from'] = from_currency
params['to'] = to_currency
params['from_name'] = CURRENCIES.iso4217_to_name(from_currency, "en")
params['to_name'] = CURRENCIES.iso4217_to_name(to_currency, "en")
return params
def get_default_tests(self):
tests = {}
tests['currency'] = {
'matrix': {'query': '1337 usd in rmb'},
'result_container': ['has_answer'],
}
return tests