Add json output flag (#139)

rfd/posts.py

@@ -1,5 +1,6 @@
 # pylint: disable=old-style-class
 import os
+import json
 from colorama import Fore, Style
 from .scores import get_vote_color
 
@@ -11,6 +12,17 @@ class Post:
         self.user = user
 
 
+class PostEncoder(json.JSONEncoder):
+    def default(self, o):
+        if isinstance(o, Post):
+            return dict(
+                body=o.body,
+                score=o.score,
+                user=o.user,
+            )
+        return json.JSONEncoder.default(self, o)
+
+
 def get_terminal_width():
     _, columns = os.popen("stty size", "r").read().split()
     return int(columns)