From 5023d195dcd7ee6d3710a43558940bcdc31d5a2f Mon Sep 17 00:00:00 2001
From: ULIVZ <472590061@qq.com>
Date: Mon, 30 Apr 2018 15:09:13 +0800
Subject: [PATCH] fix: title cannot be number at front matter (#297)

---
 lib/util/parseHeaders.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/util/parseHeaders.js b/lib/util/parseHeaders.js
index 8fbf18ac95..2a2c4fee4c 100644
--- a/lib/util/parseHeaders.js
+++ b/lib/util/parseHeaders.js
@@ -1,16 +1,16 @@
 const parseEmojis = str => {
   const emojiData = require('markdown-it-emoji/lib/data/full.json')
-  return str.replace(/:(.+?):/g, (placeholder, key) => emojiData[key] || placeholder)
+  return String(str).replace(/:(.+?):/g, (placeholder, key) => emojiData[key] || placeholder)
 }
 
-const unescapeHtml = html => html
+const unescapeHtml = html => String(html)
   .replace(/&quot;/g, '"')
   .replace(/&#39;/g, '\'')
   .replace(/&#x3A;/g, ':')
   .replace(/&lt;/g, '<')
   .replace(/&gt;/g, '>')
 
-const removeMarkdownToken = str => str
+const removeMarkdownToken = str => String(str)
   .replace(/`(.*)`/, '$1')  // ``
   .replace(/\[(.*)\]\(.*\)/, '$1')  // []()
   .replace(/\*\*(.*)\*\*/, '$1')  // **