From 3433c9bfcc62c095d96af81df9a742e98b582715 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sat, 2 Apr 2016 17:56:07 +0100
Subject: Change document transforms to create copies of elements

---
 lib/transforms.js | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

(limited to 'lib/transforms.js')

diff --git a/lib/transforms.js b/lib/transforms.js
index 988b456..5078387 100644
--- a/lib/transforms.js
+++ b/lib/transforms.js
@@ -1,15 +1,17 @@
+var _ = require("underscore");
+
 exports.paragraph = function(transform) {
     function transformElement(element) {
         if (element.children) {
-            for (var i = 0; i < element.children.length; i++) {
-                element.children[i] = transformElement(element.children[i]);
-            }
+            var children = _.map(element.children, transformElement);
+            element = _.extend(element, {children: children});
         }
+        
         if (element.type === "paragraph") {
-            return transform(element);
-        } else {
-            return element;
+            element = transform(element);
         }
+        
+        return element;
     }
     return transformElement;
 };
-- 
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