import re from urlparse import urljoin from lxml import html from cgi import escape 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 is_valid_lang(lang): is_abbr = (len(lang) == 2) if is_abbr: for l in language_codes: if l[0][:2] == lang.lower(): return (True, l[1].lower()) return False else: for l in language_codes: if l[1].lower() == lang.lower(): return (True, l[1].lower()) return False def request(query, params): m = parser_re.match(unicode(query, 'utf8')) if not m: return params from_lang, to_lang, query = m.groups() from_lang = is_valid_lang(from_lang) to_lang = is_valid_lang(to_lang) if not from_lang or not to_lang: return params params['url'] = url.format(from_lang=from_lang[1], to_lang=to_lang[1],query=query) params['from_lang'] = from_lang[1] params['to_lang'] = to_lang[1] 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': escape(from_result.text_content()), 'content': escape('; '.join(to_results)) }) return results