From 0690468bfd5a819712cf48093e916682ea793003 Mon Sep 17 00:00:00 2001
From: David Paz <david.paz@flagbit.de>
Date: Wed, 1 Jun 2016 13:33:28 +0200
Subject: [PATCH] Allow ignore html elements selectively

Ad one more condition check in order to allow to configure the thml
elements to ignore.

Add one more option to settings: ignoreNode, an array of elements.
---
 jquery.highlight.js | 34 ++++++++++++++++++++++------------
 1 file changed, 22 insertions(+), 12 deletions(-)

diff --git a/jquery.highlight.js b/jquery.highlight.js
index 9dcf3c7..2436b70 100644
--- a/jquery.highlight.js
+++ b/jquery.highlight.js
@@ -44,7 +44,7 @@
  */
 
 jQuery.extend({
-    highlight: function (node, re, nodeName, className) {
+    highlight: function (node, re, nodeName, className, ignore) {
         if (node.nodeType === 3) {
             var match = node.data.match(re);
             if (match) {
@@ -57,11 +57,15 @@ jQuery.extend({
                 wordNode.parentNode.replaceChild(highlight, wordNode);
                 return 1; //skip added node in parent
             }
-        } else if ((node.nodeType === 1 && node.childNodes) && // only element nodes that have children
-                !/(script|style)/i.test(node.tagName) && // ignore script and style nodes
-                !(node.tagName === nodeName.toUpperCase() && node.className === className)) { // skip if already highlighted
-            for (var i = 0; i < node.childNodes.length; i++) {
-                i += jQuery.highlight(node.childNodes[i], re, nodeName, className);
+        } else if (node.nodeType === 1 && node.childNodes) { // only element nodes that have children
+            var regex = new RegExp("(" + ignore.join("|") + ")", "i"),
+                condition = !regex.test(node.tagName) && // ignore configured nodes
+                    !(node.tagName === nodeName.toUpperCase() && node.className === className); // skip if already highlighted
+
+            if(condition) {
+                for (var i = 0; i < node.childNodes.length; i++) {
+                    i += jQuery.highlight(node.childNodes[i], re, nodeName, className, ignore);
+                }
             }
         }
         return 0;
@@ -80,17 +84,23 @@ jQuery.fn.unhighlight = function (options) {
 };
 
 jQuery.fn.highlight = function (words, options) {
-    var settings = { className: 'highlight', element: 'span', caseSensitive: false, wordsOnly: false };
+    var settings = {
+        className: 'highlight',
+        element: 'span',
+        caseSensitive: false,
+        wordsOnly: false,
+        ignoreNode: ['script', 'style']
+    };
     jQuery.extend(settings, options);
-    
+
     if (words.constructor === String) {
         words = [words];
     }
     words = jQuery.grep(words, function(word, i){
-      return word != '';
+        return word != '';
     });
     words = jQuery.map(words, function(word, i) {
-      return word.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
+        return word.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
     });
     if (words.length == 0) { return this; };
 
@@ -100,9 +110,9 @@ jQuery.fn.highlight = function (words, options) {
         pattern = "\\b" + pattern + "\\b";
     }
     var re = new RegExp(pattern, flag);
-    
+
     return this.each(function () {
-        jQuery.highlight(this, re, settings.element, settings.className);
+        jQuery.highlight(this, re, settings.element, settings.className, settings.ignoreNode);
     });
 };