From 974141abd6d04d090f9f914e955d8e3c69aff3a6 Mon Sep 17 00:00:00 2001
From: ppoffice <ppoffice_2008@163.com>
Date: Thu, 7 Jul 2016 21:44:52 +0800
Subject: [PATCH] chore: remove implict thumbnail declaration

---
 scripts/thumbnail.js | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/scripts/thumbnail.js b/scripts/thumbnail.js
index e71ae99..d69f6ee 100644
--- a/scripts/thumbnail.js
+++ b/scripts/thumbnail.js
@@ -5,26 +5,5 @@
 *     <%- thumbnail(post) %>
 */
 hexo.extend.helper.register('thumbnail', function (post) {
-    var url = post.thumbnail || post.banner || '';
-    if (!url) {
-        var imgPattern = /\<img\s.*?\s?src\s*=\s*['|"]?([^\s'"]+).*?\>/ig;
-        var result = imgPattern.exec(post.content);
-        if (result && result.length > 1) {
-            url = result[1];
-        }
-        if(url.length > 0) {
-            var pattern = /^[\\{0,1}\/{0,1}]([^\/^\\]+)/,
-                pattern_ = /([^\/^\\]+)/;
-            if ((ret = pattern.exec(url)) != null) {
-                if(ret[0].length == url.length) {
-                    url = post.path + ret[1];
-                }
-            } else if ((ret = pattern_.exec(url)) != null) {
-                if(ret[0].length == url.length) {
-                    url = post.path + ret[1];
-                }
-            }
-        }
-    }
-    return url;
+    return post.thumbnail || post.banner || '';
 });
\ No newline at end of file