import re from urlparse import urljoin from lxml import html from searx.engines.xpath import extract_text from searx.languages import language_codes categories = ['general'] url = 'http://dictzone.com/{from_lang}-{to_lang}-dictionary/{query}' weight = 100 parser_re = re.compile(u'.*?([a-z]+)-([a-z]+) (.+)', re.I) results_xpath = './/table[@id="r"]/tr' def request(query, params): m = parser_re.match(unicode(query, 'utf8')) if not m: return params from_lang, to_lang, query = m.groups() if len(from_lang) == 2: lan = filter(lambda x: x[0][:2] == from_lang, language_codes) if lan: from_lang = lan[0][1].lower() else: return params elif from_lang.lower() not in [x[1].lower() for x in language_codes]: return params if len(to_lang) == 2: lan = filter(lambda x: x[0][:2] == to_lang, language_codes) if lan: to_lang = lan[0][1].lower() else: return params elif to_lang.lower() not in [x[1].lower() for x in language_codes]: return params params['url'] = url.format(from_lang=from_lang, to_lang=to_lang,query=query) params['from_lang'] = from_lang params['to_lang'] = to_lang params['query'] = query return params def response(resp): results = [] dom = html.fromstring(resp.text) for k, result in enumerate(dom.xpath(results_xpath)[1:]): try: from_result, to_results_raw = result.xpath('./td') except: continue to_results = [] for to_result in to_results_raw.xpath('./p/a'): t = to_result.text_content() if t.strip(): to_results.append(to_result.text_content()) results.append({ 'url': urljoin(resp.url, '?%d' % k), 'title': from_result.text_content(), 'content': '; '.join(to_results) }) return results