Added binding convention to the config file.

rtv/config.py

@@ -1,10 +1,13 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
+import re
 import os
+import curses
 import codecs
 import shutil
 import argparse
+from curses import ascii
 from functools import partial
 
 import six
@@ -195,12 +198,12 @@ class Config(object):
 
         return cls._parse_rtv_file(config)
 
-    @staticmethod
-    def _parse_rtv_file(config):
+    @classmethod
+    def _parse_rtv_file(cls, config):
 
-        out = {}
+        rtv = {}
         if config.has_section('rtv'):
-            out = dict(config.items('rtv'))
+            rtv = dict(config.items('rtv'))
 
         params = {
             'ascii': partial(config.getboolean, 'rtv'),
@@ -208,13 +211,41 @@ class Config(object):
             'persistent': partial(config.getboolean, 'rtv'),
             'history_size': partial(config.getint, 'rtv'),
             'oauth_redirect_port': partial(config.getint, 'rtv'),
-            'oauth_scope': lambda x: out[x].split(',')
+            'oauth_scope': lambda x: rtv[x].split(',')
         }
 
         for key, func in params.items():
-            if key in out:
-                out[key] = func(key)
-        return out
+            if key in rtv:
+                rtv[key] = func(key)
+
+        bindings = {}
+        if config.has_section('bindings'):
+            bindings = dict(config.items('bindings'))
+
+        for name, keys in bindings.items():
+            bindings[name] = [cls._parse_key(key) for key in keys.split(',')]
+
+        return rtv, bindings
+
+    @staticmethod
+    def _parse_key(key):
+        """
+        Parse a key represented by a string return its character code.
+        """
+
+        key = key.strip()
+        if re.match('[<]KEY_.*[>]', key):
+            # Curses control character
+            return getattr(curses, key[1:-1])
+        elif re.match('[<].*[>]', key):
+            # Ascii control character
+            return getattr(ascii, key[1:-1])
+        elif key.startswith('0x'):
+            # Ascii hex code
+            return int(key, 16)
+        else:
+            # Ascii character
+            return ord(key)
 
     @staticmethod
     def _ensure_filepath(filename):

rtv/rtv.cfg

@@ -49,4 +49,69 @@ oauth_redirect_uri = http://127.0.0.1:65000/
 oauth_redirect_port = 65000
 
 ; Access permissions that will be requested.
-oauth_scope = edit,history,identity,mysubreddits,privatemessages,read,report,save,submit,subscribe,vote
+oauth_scope = edit,history,identity,mysubreddits,privatemessages,read,report,save,submit,subscribe,vote
+
+[bindings]
+##############
+# Key Bindings
+##############
+; Multiple keys that represent the same command should be listed as a comma
+; seperated list. The a mixture of the following notations should be used to
+; describe keys.
+;
+; 1.) Plain keys can be represented by either uppercase/lowercase characters
+;     or the hexadecimal codes referring their ascii codes. For reference, see
+;     https://en.wikipedia.org/wiki/ASCII#ASCII_printable_code_chart
+;         e.g. Q, q, 1, ?
+;         e.g. 0x20 (space), 0x3c (less-than sign)
+;
+; 2.) Special ascii control codes should be surrounded with <>. For reference,
+;     see https://en.wikipedia.org/wiki/ASCII#ASCII_control_code_chart
+;         e.g. <LF> (enter), <ESC> (escape)
+;
+; 3.) Other special keys are defined by curses, they should be surrounded by <>
+;     and prefixed with KEY_. For reference, see
+;     https://docs.python.org/2/library/curses.html#constants
+;         e.g. <KEY_LEFT> (left arrow), <KEY_F5>, <KEY_NPAGE> (page down)
+;
+; Notes:
+; - Curses <KEY_ENTER> is unreliable and should always be used in conjunction
+;   with <LF>.
+
+; General keys
+EXIT = q
+FORCE_EXIT = Q
+HELP = ?
+SORT_HOT = 1
+SORT_TOP = 2
+SORT_RISING = 3
+SORT_NEW = 4
+SORT_CONTROVERSIAL = 5
+MOVE_UP = k, <KEY_UP>
+MOVE_DOWN = j, <KEY_DOWN>
+PAGE_UP = m, <KEY_PPAGE>
+PAGE_DOWN = n, <KEY_NPAGE>
+UPVOTE = a
+DOWNVOTE = z
+LOGIN = u
+DELETE = d
+EDIT = e
+INBOX = i
+REFRESH = r, <KEY_F5>
+
+; Submission page
+SUBMISSION_TOGGLE_COMMENTS = l, 0x20, <KEY_RIGHT>
+SUBMISSION_OPEN_IN_BROWSER = o, <LF>, <KEY_ENTER>
+SUBMISSION_POST = c
+SUBMISSION_EXIT = h, <KEY_LEFT>
+
+; Subreddit page
+SUBREDDIT_SEARCH = f
+SUBREDDIT_PROMPT = /
+SUBREDDIT_POST = c
+SUBREDDIT_OPEN = l, <KEY_RIGHT>
+SUBREDDIT_OPEN_IN_BROWSER = o, <LF>, <KEY_ENTER>, <KEY_ENTER>
+
+; Subscription page
+SUBSCRIPTION_SELECT = l, <LF>, <KEY_ENTER>, <KEY_RIGHT>
+SUBSCRIPTION_EXIT = h, s, <ESC>, <KEY_LEFT>

tests/test_config.py

@@ -103,6 +103,12 @@ def test_config_from_file():
         assert config.config == args
 
 
+def test_config_keys():
+
+    config = Config()
+    pass
+
+
 def test_config_refresh_token():
     "Ensure that the refresh token can be loaded, saved, and removed"