From 8e6d484adab430e9740118dd34fceda9951cb8d0 Mon Sep 17 00:00:00 2001
From: Fabian Becker <halfdan@xnorfz.de>
Date: Mon, 24 Mar 2014 12:03:05 +0000
Subject: [PATCH] Escape regex special characters in tag finder

refs #2149
- Properly highlight tags with special characters ($,[,],^,etc.)
---
 ghost/admin/views/editor-tag-widget.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/ghost/admin/views/editor-tag-widget.js b/ghost/admin/views/editor-tag-widget.js
index 901cf3b7f0..7dc4cc40a5 100644
--- a/ghost/admin/views/editor-tag-widget.js
+++ b/ghost/admin/views/editor-tag-widget.js
@@ -106,8 +106,11 @@
                 styles = {
                     left: $target.position().left
                 },
-                maxSuggestions = 5, // Limit the suggestions number
-                regexTerm = searchTerm.replace(/(\s+)/g, "(<[^>]+>)*$1(<[^>]+>)*"),
+                // Limit the suggestions number
+                maxSuggestions = 5,
+                // Escape regex special characters
+                escapedTerm = searchTerm.replace(/[\-\/\\\^$*+?.()|\[\]{}]/g, '\\$&'),
+                regexTerm = escapedTerm.replace(/(\s+)/g, "(<[^>]+>)*$1(<[^>]+>)*"),
                 regexPattern = new RegExp("(" + regexTerm + ")", "i");
 
             this.$suggestions.css(styles);
@@ -120,6 +123,7 @@
             _.each(matchingTags, function (matchingTag) {
                 var highlightedName,
                     suggestionHTML;
+
                 highlightedName = matchingTag.name.replace(regexPattern, function (match, p1) {
                     return "<mark>" + _.escape(p1) + "</mark>";
                 });