searxng/searx/engines/currency_convert.py
2014-09-28 16:51:41 +02:00

60 lines
1.5 KiB
Python

from datetime import datetime
import re
categories = []
url = 'http://finance.yahoo.com/d/quotes.csv?e=.csv&f=sl1d1t1&s={query}=X'
weight = 100
parser_re = re.compile(r'^\W*(\d+(?:\.\d+)?)\W*([a-z]{3})\W*(?:in)?\W*([a-z]{3})\W*$', re.I) # noqa
def request(query, params):
m = parser_re.match(query)
if not m:
# wrong query
return params
try:
ammount, from_currency, to_currency = m.groups()
ammount = float(ammount)
except:
# wrong params
return params
q = (from_currency + to_currency).upper()
params['url'] = url.format(query=q)
params['ammount'] = ammount
params['from'] = from_currency
params['to'] = to_currency
return params
def response(resp):
results = []
try:
_, conversion_rate, _ = resp.text.split(',', 2)
conversion_rate = float(conversion_rate)
except:
return results
answer = '{0} {1} = {2} {3} (1 {1} = {4} {3})'.format(
resp.search_params['ammount'],
resp.search_params['from'],
resp.search_params['ammount'] * conversion_rate,
resp.search_params['to'],
conversion_rate
)
now_date = datetime.now().strftime('%Y%m%d')
url = 'http://finance.yahoo.com/currency/converter-results/{0}/{1}-{2}-to-{3}.html' # noqa
url = url.format(
now_date,
resp.search_params['ammount'],
resp.search_params['from'].lower(),
resp.search_params['to'].lower()
)
results.append({'answer' : answer, 'url': url})
return results