[enh] mymemory translated engine added for multi-word translations

searx/engines/translated.py

@@ -0,0 +1,63 @@
+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://api.mymemory.translated.net/get?q={query}&langpair={from_lang}|{to_lang}'
+web_url = 'http://mymemory.translated.net/en/{from_lang}/{to_lang}/{query}'
+weight = 100
+
+parser_re = re.compile(u'.*?([a-z]+)-([a-z]+) (.{2,})$', re.I)
+
+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[0][:2], l[1].lower())
+        return False
+    else:
+        for l in language_codes:
+            if l[1].lower() == lang.lower():
+                return (True, l[0][:2], 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['query'] = query
+    params['from_lang'] = from_lang
+    params['to_lang'] = to_lang
+
+    return params
+
+
+def response(resp):
+    results = []
+    results.append({
+        'url': escape(web_url.format(from_lang=resp.search_params['from_lang'][2],
+                              to_lang=resp.search_params['to_lang'][2],
+                              query=resp.search_params['query'])),
+        'title': escape('[{0}-{1}] {2}'.format(resp.search_params['from_lang'][1],
+                                                          resp.search_params['to_lang'][1],
+                                                          resp.search_params['query'])),
+        'content': escape(resp.json()['responseData']['translatedText'])
+    })
+    return results

searx/settings.yml

@@ -499,6 +499,14 @@ engines:
     engine : dictzone
     shortcut : dc
 
+  - name : mymemory translated
+    engine : translated
+    shortcut : tl
+    timeout : 5.0
+    # You can use without an API key, but you are limited to 1000 words/day
+    # See : http://mymemory.translated.net/doc/usagelimits.php
+    # api_key : ''
+
 #The blekko technology and team have joined IBM Watson! -> https://blekko.com/
 #  - name : blekko images
 #    engine : blekko_images