[enh] dictionary engine added

searx/engines/dictionary.py

@@ -0,0 +1,70 @@
+import re
+from lxml import html
+from searx.engines.xpath import extract_text
+from searx.languages import language_codes
+
+categories = []
+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
+
+    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
+
+    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 = []
+    answers = []
+
+    dom = html.fromstring(resp.text)
+
+    for result in 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({
+            'answer': u'{0} - {1}'.format(
+                from_result.text_content(),
+                '; '.join(to_results)
+            ),
+            'url': url
+        })
+
+    return results
+
+

searx/settings.yml

@@ -495,6 +495,10 @@ engines:
     timeout: 6.0
     categories : science
 
+  - name : dictionary
+    engine : dictionary
+    shortcut : dc
+
 #The blekko technology and team have joined IBM Watson! -> https://blekko.com/
 #  - name : blekko images
 #    engine : blekko_images