improve publishDate extraction from yahoo

searx/engines/yahoo_news.py

@@ -4,7 +4,8 @@ from urllib import urlencode
 from lxml import html
 from searx.engines.xpath import extract_text, extract_url
 from searx.engines.yahoo import parse_url
-from datetime import datetime
+from datetime import datetime, timedelta
+import re
 
 categories = ['news']
 search_url = 'http://news.search.yahoo.com/search?{query}&b={offset}'
@@ -39,9 +40,21 @@ def response(resp):
         url = parse_url(extract_url(result.xpath(url_xpath), search_url))
         title = extract_text(result.xpath(title_xpath)[0])
         content = extract_text(result.xpath(content_xpath)[0])
-# Feb 20 04:02am
-        publishedDate = datetime.strptime(extract_text(result.xpath(publishedDate_xpath)[0]),"%b %d %H:%M%p")
-        #publishedDate.replace(year=2014)
+        publishedDate = extract_text(result.xpath(publishedDate_xpath)[0])
+
+        if re.match("^[0-9]+ minute(s|) ago$", publishedDate):
+            publishedDate = datetime.now() - timedelta(minutes=int(re.match(r'\d+', publishedDate).group()))
+        else:
+            if re.match("^[0-9]+ hour(s|), [0-9]+ minute(s|) ago$", publishedDate):
+                timeNumbers = re.findall(r'\d+', publishedDate)
+                publishedDate = datetime.now() - timedelta(hours=int(timeNumbers[0])) - timedelta(minutes=int(timeNumbers[1]))
+            else:
+                # TODO year in string possible?
+                publishedDate = datetime.strptime(publishedDate,"%b %d %H:%M%p")
+
+        if publishedDate.year == 1900:
+            publishedDate = publishedDate.replace(year=datetime.now().year)
+
         results.append({'url': url, 'title': title, 'content': content,'publishedDate':publishedDate})
 
     if not suggestion_xpath: