From 79a25c777ffcbc9177880c4c5057c04e57f0adc0 Mon Sep 17 00:00:00 2001
From: Vitaly Puzrin <vitaly@rcdesign.ru>
Date: Sun, 7 Sep 2014 18:16:33 +0400
Subject: [PATCH] Renderer rules are now modifiable

---
 lib/parser.js   |  7 ++++---
 lib/renderer.js | 10 ++++++++--
 package.json    |  3 ++-
 3 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/lib/parser.js b/lib/parser.js
index 2501139..b0ca53b 100644
--- a/lib/parser.js
+++ b/lib/parser.js
@@ -3,6 +3,9 @@
 'use strict';
 
 
+var assign = require('object-assign');
+
+
 var State       = require('./state');
 var Renderer    = require('./renderer');
 var LexerBlock  = require('./lexer_block');
@@ -24,9 +27,7 @@ function Parser(options) {
 
 
 Parser.prototype.set = function (options) {
-  Object.keys(options).forEach(function (key) {
-    this.options[key] = options[key];
-  }, this);
+  assign(this.options, options);
 };
 
 
diff --git a/lib/renderer.js b/lib/renderer.js
index bc803b1..666afa0 100644
--- a/lib/renderer.js
+++ b/lib/renderer.js
@@ -1,6 +1,9 @@
 'use strict';
 
 
+var assign = require('object-assign');
+
+
 function escapeHtml(str) {
   return str.replace(/&/g, '&amp;')
             .replace(/</g, '&lt;')
@@ -85,13 +88,16 @@ rules.text = function (state, token) {
 };
 
 
-// TODO: Stub. Do extendable.
+// Renderer class
 function Renderer() {
+  // Clone rules object to allow local modifications
+  this.rules = assign({}, rules);
 }
 
 Renderer.prototype.render = function (state) {
   var i, len, rule,
-      tokens = state.tokens;
+      tokens = state.tokens,
+      rules = this.rules;
 
   for (i = 0, len = tokens.length; i < len; i++) {
     rule = rules[tokens[i].type];
diff --git a/package.json b/package.json
index ca0cf06..b4be80e 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,8 @@
   ],
   "main": "index.js",
   "dependencies": {
-    "argparse": "~ 0.1.15"
+    "argparse": "~ 0.1.15",
+    "object-assign": "^1.0.0"
   },
   "devDependencies": {
     "ansi": "^0.3.0",