From cbc2a201248921c16245afda4347a86a6a4deb17 Mon Sep 17 00:00:00 2001
From: spencer <spencer.salyer@gmail.com>
Date: Sat, 14 Oct 2017 23:49:56 -0400
Subject: [PATCH] Added additional regex string escape characters (as per
 https://stackoverflow.com/a/6969486) -- Question marks in attribute values
 were causing failure to parse the shortcodes, e.g. [mytag
 myattribute="What?"]

---
 src/Shortcode.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Shortcode.js b/src/Shortcode.js
index 7bab823..7cb675b 100644
--- a/src/Shortcode.js
+++ b/src/Shortcode.js
@@ -165,7 +165,7 @@ Shortcode.prototype.parseOptions = function(stringOptions) {
 };
 
 Shortcode.prototype.escapeTagRegExp = function(regex) {
-  return regex.replace(/[\[\]\/]/g, '\\$&');
+  return regex.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
 };
 
 Shortcode.prototype.template = function(s, d) {