From 4503cfc044c6dba2af2da5d0021a91f1e921a3dd Mon Sep 17 00:00:00 2001
From: ULIVZ <472590061@qq.com>
Date: Mon, 4 Jun 2018 23:57:40 +0800
Subject: [PATCH] fix: reserve '*' and '_' when detecting escape char '\'
 (close: #544).

---
 lib/util/parseHeaders.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/util/parseHeaders.js b/lib/util/parseHeaders.js
index 3837eeba39..58f6c41cc5 100644
--- a/lib/util/parseHeaders.js
+++ b/lib/util/parseHeaders.js
@@ -16,8 +16,9 @@ const removeMarkdownToken = str => String(str)
   .replace(/`(.*)`/, '$1')  // ``
   .replace(/\[(.*)\]\(.*\)/, '$1')  // []()
   .replace(/\*\*(.*)\*\*/, '$1')  // **
-  .replace(/\*(.*)\*/, '$1')  // *
-  .replace(/_(.*)_/, '$1')  // _
+  .replace(/\*(.*[^\\])\*/, '$1')  // *
+  .replace(/_(.*[^\\])_/g, '$1')  // _ _
+  .replace(/(\\)(\*|_)/g, '$2') // remove escaped char '\'
 
 exports.removeTailHtml = (str) => {
   return String(str).replace(/<.*>\s*$/g, '')