From b2611c1b0503c7d52313a86fc3c7106f26a4e415 Mon Sep 17 00:00:00 2001
From: Federico Soave <fede.covr@gmail.com>
Date: Fri, 23 Feb 2018 20:07:39 +0100
Subject: [PATCH] allow colons in tag names and attributes. Decrease group
 depth in regex

---
 lib/marked.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/marked.js b/lib/marked.js
index 3196e563f4..99a94226d4 100644
--- a/lib/marked.js
+++ b/lib/marked.js
@@ -463,7 +463,7 @@ var inline = {
   escape: /^\\([\\`*{}\[\]()#+\-.!_>])/,
   autolink: /^<(scheme:[^\s\x00-\x1f<>]*|email)>/,
   url: noop,
-  tag: /^comment|^<\/[a-zA-Z][\w\-]*\s*>|^<[a-zA-Z][\w\-]*(?:\s+[\w:-]+(?:\s*=\s*(?:"[^"]*"|'[^']*'|[^\s"'=<>`]+))?)*?\s*\/?>|^<\?[\s\S]*?\?>|^<![a-zA-Z]+\s[\s\S]*?>|^<!\[CDATA\[[\s\S]*?\]\]>/,
+  tag: /^comment|^<\/[a-zA-Z][\w:-]*\s*>|^<[a-zA-Z][\w:-]*(?:attribute)*?\s*\/?>|^<\?[\s\S]*?\?>|^<![a-zA-Z]+\s[\s\S]*?>|^<!\[CDATA\[[\s\S]*?\]\]>/,
   link: /^!?\[(inside)\]\(href\)/,
   reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/,
   nolink: /^!?\[((?:\[[^\]]*\]|\\[\[\]]|[^\[\]])*)\]/,
@@ -483,8 +483,11 @@ inline.autolink = edit(inline.autolink)
   .replace('email', inline._email)
   .getRegex();
 
+inline._attribute = /\s+[\w:-]+(?:\s*=\s*"[^"]*"|\s*=\s*'[^']*'|\s*=\s*[^\s"'=<>`]+)?/;
+
 inline.tag = edit(inline.tag)
   .replace('comment', block._comment)
+  .replace('attribute', inline._attribute)
   .getRegex();
 
 inline._inside = /(?:\[[^\]]*\]|\\[\[\]]|[^\[\]]|\](?=[^\[]*\]))*/;