added support for retrieving information from hackernews urls

plugins/hackernews.py

@@ -0,0 +1,33 @@
+import re
+import urlparse
+
+from util import http, hook
+
+
+base_api = 'https://hacker-news.firebaseio.com/v0/item/'
+
+
+def get_by_id(id):
+    url = base_api + id + ".json?print=pretty"
+
+    try:
+        return http.get_json(url)
+    except ValueError:
+        return None
+
+
+@hook.regex(r'(?i)https://(?:www\.)?news\.ycombinator\.com(?:/.+)?')
+def hackernews(match):
+    parsed = urlparse.urlparse(match.group())
+    id = urlparse.parse_qs(parsed.query)['id'][0]
+    entry = get_by_id(id)
+
+    if not entry:
+        return
+
+    if entry['type'] == "story":
+        return "{title} by {by} with {score} points and {descendants} comments ({url})".format(**entry)
+
+    if entry['type'] == "comment":
+        return '"{text}" -- {by}'.format(**entry)
+