[enh] search language support init

searx/engines/wikipedia.py

@@ -0,0 +1,30 @@
+from json import loads
+from urllib import urlencode, quote
+
+url = 'https://{language}.wikipedia.org/'
+
+search_url = url + 'w/api.php?action=query&list=search&{query}&srprop=timestamp&format=json&sroffset={offset}'  # noqa
+
+number_of_results = 10
+
+language_support = True
+
+
+def request(query, params):
+    offset = (params['pageno'] - 1) * 10
+    if params['language'] == 'all':
+        language = 'en'
+    else:
+        language = params['language'].split('_')[0]
+    params['language'] = language
+    params['url'] = search_url.format(query=urlencode({'srsearch': query}),
+                                      offset=offset,
+                                      language=language)
+    return params
+
+
+def response(resp):
+    search_results = loads(resp.text)
+    res = search_results.get('query', {}).get('search', [])
+    return [{'url': url.format(language=resp.search_params['language']) + 'wiki/' + quote(result['title'].replace(' ', '_').encode('utf-8')),  # noqa
+        'title': result['title']} for result in res[:int(number_of_results)]]