New version 2.3

README.md

@@ -1,4 +1,4 @@
-# highlightjs-line-numbers.js [![version](http://img.shields.io/badge/release-v2.2.0-brightgreen.svg?style=flat)](https://github.com/wcoder/highlightjs-line-numbers.js/archive/master.zip)
+# highlightjs-line-numbers.js [![npm](https://img.shields.io/npm/v/highlightjs-line-numbers.js.svg)](https://www.npmjs.com/package/highlightjs-line-numbers.js) ![npm](https://img.shields.io/npm/dw/highlightjs-line-numbers.js.svg)
 
 Highlight.js line numbers plugin.
 
@@ -18,7 +18,7 @@ npm install highlightjs-line-numbers.js
 
 #### Getting the library from CDN
 ```html
-<script src="//cdnjs.cloudflare.com/ajax/libs/highlightjs-line-numbers.js/2.2.0/highlightjs-line-numbers.min.js"></script>
+<script src="//cdnjs.cloudflare.com/ajax/libs/highlightjs-line-numbers.js/2.3.0/highlightjs-line-numbers.min.js"></script>
 ```
 
 ## Usage
@@ -40,45 +40,45 @@ hljs.initLineNumbersOnLoad();
 Here’s an equivalent way to calling `initLineNumbersOnLoad` using jQuery:
 ```js
 $(document).ready(function() {
-	$('code.hljs').each(function(i, block) {
-		hljs.lineNumbersBlock(block);
-	});
+    $('code.hljs').each(function(i, block) {
+        hljs.lineNumbersBlock(block);
+    });
 });
 ```
 
 If your needs cool style, add styles by taste:
 ```css
 /* for block of numbers */
 td.hljs-ln-numbers {
-	-webkit-touch-callout: none;
-	-webkit-user-select: none;
-	-khtml-user-select: none;
-	-moz-user-select: none;
-	-ms-user-select: none;
-	user-select: none;
-
-	text-align: center;
-	color: #ccc;
-	border-right: 1px solid #CCC;
-	vertical-align: top;
-	padding-right: 5px;
-
-	/* your custom style here */
+    -webkit-touch-callout: none;
+    -webkit-user-select: none;
+    -khtml-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
+
+    text-align: center;
+    color: #ccc;
+    border-right: 1px solid #CCC;
+    vertical-align: top;
+    padding-right: 5px;
+
+    /* your custom style here */
 }
 
 /* for block of code */
 td.hljs-ln-code {
-	padding-left: 10px;
+    padding-left: 10px;
 }
 ```
 
 ## Options
 
 After version 2.1 plugin has optional parameter `options` - for custom setup.
 
-name | type | default value | description
------|------|---------------|------------
-singleLine | boolean | false | enable plugin for code block with one line
+name       | type    | default value | description
+-----------|---------|---------------|-----------------------
+singleLine | boolean | false         | enable plugin for code block with one line
 
 #### Examples of using
 
@@ -93,4 +93,4 @@ hljs.lineNumbersBlock(myCodeBlock, myOptions);
 ```
 
 ---
-&copy; 2017 Yauheni Pakala | MIT License
+&copy; 2018 Yauheni Pakala | MIT License

src/highlightjs-line-numbers.js

@@ -82,6 +82,11 @@
 
         var lines = getLines(inputHtml);
 
+        // if last line contains only carriage return remove it
+        if (lines[lines.length-1].trim() === '') {
+            lines.pop();
+        }
+
         if (lines.length > firstLineIndex) {
             var html = '';
 
@@ -119,14 +124,14 @@
      */
     function duplicateMultilineNodes (element) {
         var nodes = element.childNodes;
-        for (var node in nodes){
+        for (var node in nodes) {
             if (nodes.hasOwnProperty(node)) {
                 var child = nodes[node];
                 if (getLinesCount(child.textContent) > 0) {
                     if (child.childNodes.length > 0) {
                         duplicateMultilineNodes(child);
                     } else {
-                        duplicateMultilineNode(child);
+                        duplicateMultilineNode(child.parentNode);
                     }
                 }
             }
@@ -138,16 +143,17 @@
      * @param {HTMLElement} element
      */
     function duplicateMultilineNode (element) {
-        var className = element.parentNode.className;
+        var className = element.className;
 
         if ( ! /hljs-/.test(className)) return;
 
-        var lines = getLines(element.textContent);
+        var lines = getLines(element.innerHTML);
 
         for (var i = 0, result = ''; i < lines.length; i++) {
             result += format('<span class="{0}">{1}</span>\n', [ className, lines[i] ]);
         }
-        element.parentNode.innerHTML = result.trim();
+
+        element.innerHTML = result.trim();
     }
 
     function getLines (text) {