53 lines
1.3 KiB
Python
53 lines
1.3 KiB
Python
#!/usr/bin/python
|
|
'''Searches wikipedia and returns first sentence of article
|
|
Scaevolus 2009'''
|
|
|
|
import urllib
|
|
from lxml import etree
|
|
import re
|
|
|
|
import hook
|
|
|
|
api_prefix = "http://en.wikipedia.org/w/api.php"
|
|
search_url = api_prefix + "?action=opensearch&search=%s&format=xml"
|
|
|
|
paren_re = re.compile('\s*\(.*\)$')
|
|
|
|
@hook.command(hook='w (.*)')
|
|
@hook.command
|
|
def wiki(query):
|
|
print query
|
|
q = search_url % (urllib.quote(query, safe=''))
|
|
print q
|
|
x = etree.parse(q)
|
|
|
|
ns = '{http://opensearch.org/searchsuggest2}'
|
|
items = x.findall(ns + 'Section/' + ns + 'Item')
|
|
|
|
if items == []:
|
|
if x.find('error') is not None:
|
|
return 'error: %(code)s: %(info)s' % x.find('error').attrib
|
|
else:
|
|
return 'no results found'
|
|
|
|
def extract(item):
|
|
return [item.find(ns + x).text for x in
|
|
('Text', 'Description', 'Url')]
|
|
|
|
title, desc, url = extract(items[0])
|
|
|
|
if 'may refer to' in desc:
|
|
title, desc, url = extract(items[1])
|
|
|
|
title = paren_re.sub('', title)
|
|
|
|
if title.lower() not in desc.lower():
|
|
desc = title + desc
|
|
|
|
desc = re.sub('\s+', ' ', desc).strip() #remove excess spaces
|
|
|
|
if len(desc) > 300:
|
|
desc = desc[:300] + '...'
|
|
|
|
return '%s -- %s' % (desc, url)
|