From 1aa6636ba82e117dd7812356c48ddc39619ad930 Mon Sep 17 00:00:00 2001
From: Leopoldthecoder <Leopoldthecuber@gmail.com>
Date: Mon, 6 Mar 2017 23:57:28 +0800
Subject: [PATCH 1/2] add external-script plugin

---
 build/build.js                     |  3 ++-
 docs/plugins.md                    |  7 +++++++
 docs/zh-cn/plugins.md              |  8 ++++++++
 lib/plugins/external-script.js     | 30 ++++++++++++++++++++++++++++++
 lib/plugins/external-script.min.js |  1 +
 src/plugins/external-script.js     | 24 ++++++++++++++++++++++++
 6 files changed, 72 insertions(+), 1 deletion(-)
 create mode 100644 lib/plugins/external-script.js
 create mode 100644 lib/plugins/external-script.min.js
 create mode 100644 src/plugins/external-script.js

diff --git a/build/build.js b/build/build.js
index b01ee22b..6834167c 100644
--- a/build/build.js
+++ b/build/build.js
@@ -34,7 +34,8 @@ build({
 var plugins = [
   { name: 'search', entry: 'search/index.js', moduleName: 'Search' },
   { name: 'ga', entry: 'ga.js', moduleName: 'GA' },
-  { name: 'emoji', entry: 'emoji.js', moduleName: 'Emoji' }
+  { name: 'emoji', entry: 'emoji.js', moduleName: 'Emoji' },
+  { name: 'external-script', entry: 'external-script.js', moduleName: 'ExternalScript' }
   // { name: 'front-matter', entry: 'front-matter/index.js', moduleName: 'FrontMatter' }
 ]
 
diff --git a/docs/plugins.md b/docs/plugins.md
index 3142694c..4621d34c 100644
--- a/docs/plugins.md
+++ b/docs/plugins.md
@@ -75,3 +75,10 @@ The default is to support parsing emoji. For example `:100:` will be parsed to :
 <script src="//unpkg.com/docsify/lib/plugins/emoji.js"></script>
 ```
 
+## External Script
+
+If the script on the page is an external one (imports a js file via `src` attribute), you'll need this plugin to make it work.
+
+```html
+<script src="//unpkg.com/docsify/lib/plugins/external-script.js"></script>
+```
diff --git a/docs/zh-cn/plugins.md b/docs/zh-cn/plugins.md
index 5fa1530a..5b35d9d7 100644
--- a/docs/zh-cn/plugins.md
+++ b/docs/zh-cn/plugins.md
@@ -71,3 +71,11 @@
 ```html
 <script src="//unpkg.com/docsify/lib/plugins/emoji.js"></script>
 ```
+
+## 外链脚本 - External Script
+
+如果文档里的 script 是内联脚本，可以直接执行；而如果是外链脚本（即 js 文件内容由 `src` 属性引入），则需要使用此插件。
+
+```html
+<script src="//unpkg.com/docsify/lib/plugins/external-script.js"></script>
+```
diff --git a/lib/plugins/external-script.js b/lib/plugins/external-script.js
new file mode 100644
index 00000000..3c38e8f2
--- /dev/null
+++ b/lib/plugins/external-script.js
@@ -0,0 +1,30 @@
+this.D = this.D || {};
+(function () {
+'use strict';
+
+var scriptReg = /<script[^>]*src=["|'](.*)["|']>[^\w]*<\/script>/;
+var asyncReg = /<script[^>]*\s+async/;
+var deferReg = /<script[^>]*\s+defer/;
+
+function handleExternalScript (html) {
+  var scriptMatch = html.match(scriptReg);
+
+  if (scriptMatch && scriptMatch.length > 1) {
+    var script = document.createElement('script');
+    script.src = scriptMatch[1];
+
+    if (asyncReg.test(scriptMatch[0])) { script.setAttribute('async', ''); }
+    if (deferReg.test(scriptMatch[0])) { script.setAttribute('defer', ''); }
+
+    var target = document.querySelector('#main');
+    target.appendChild(script);
+  }
+}
+
+var install = function (hook) {
+  hook.afterEach(handleExternalScript);
+};
+
+window.$docsify.plugins = [].concat(install, window.$docsify.plugins);
+
+}());
diff --git a/lib/plugins/external-script.min.js b/lib/plugins/external-script.min.js
new file mode 100644
index 00000000..a7fd791e
--- /dev/null
+++ b/lib/plugins/external-script.min.js
@@ -0,0 +1 @@
+this.D=this.D||{},function(){"use strict";function t(t){var i=t.match(c);if(i&&i.length>1){var r=document.createElement("script");r.src=i[1],e.test(i[0])&&r.setAttribute("async",""),s.test(i[0])&&r.setAttribute("defer","");var n=document.querySelector("#main");n.appendChild(r)}}var c=/<script[^>]*src=["|'](.*)["|']>[^\w]*<\/script>/,e=/<script[^>]*\s+async/,s=/<script[^>]*\s+defer/,i=function(c){c.afterEach(t)};window.$docsify.plugins=[].concat(i,window.$docsify.plugins)}();
diff --git a/src/plugins/external-script.js b/src/plugins/external-script.js
new file mode 100644
index 00000000..8391079c
--- /dev/null
+++ b/src/plugins/external-script.js
@@ -0,0 +1,24 @@
+const scriptReg = /<script[^>]*src=["|'](.*)["|']>[^\w]*<\/script>/
+const asyncReg = /<script[^>]*\s+async/
+const deferReg = /<script[^>]*\s+defer/
+
+function handleExternalScript (html) {
+  const scriptMatch = html.match(scriptReg)
+
+  if (scriptMatch && scriptMatch.length > 1) {
+    const script = document.createElement('script')
+    script.src = scriptMatch[1]
+
+    if (asyncReg.test(scriptMatch[0])) script.setAttribute('async', '')
+    if (deferReg.test(scriptMatch[0])) script.setAttribute('defer', '')
+
+    const target = document.querySelector('#main')
+    target.appendChild(script)
+  }
+}
+
+const install = function (hook) {
+  hook.afterEach(handleExternalScript)
+}
+
+window.$docsify.plugins = [].concat(install, window.$docsify.plugins)

From 9c54bafae48c54ed412940bdcfd2390889e46849 Mon Sep 17 00:00:00 2001
From: Leopoldthecoder <Leopoldthecuber@gmail.com>
Date: Tue, 7 Mar 2017 11:30:09 +0800
Subject: [PATCH 2/2] switch to doneEach and cache #main dom

---
 docs/configuration.md              |  1 +
 docs/zh-cn/configuration.md        |  1 +
 lib/docsify.js                     |  2 +-
 lib/docsify.min.js                 |  2 +-
 lib/plugins/external-script.js     | 25 ++++++++++---------------
 lib/plugins/external-script.min.js |  2 +-
 src/core/util/dom.js               |  2 +-
 src/plugins/external-script.js     | 25 +++++++++++--------------
 8 files changed, 27 insertions(+), 33 deletions(-)

diff --git a/docs/configuration.md b/docs/configuration.md
index 6b2c770a..c418aaf6 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -306,3 +306,4 @@ window.$docsify = {
 
 ```
 
+Note that if you are running an external script, e.g. an embedded jsfiddle demo, make sure to include the [external-script](plugins?id=external-script) plugin.
diff --git a/docs/zh-cn/configuration.md b/docs/zh-cn/configuration.md
index a474f7d3..103e8843 100644
--- a/docs/zh-cn/configuration.md
+++ b/docs/zh-cn/configuration.md
@@ -304,3 +304,4 @@ window.$docsify = {
 
 ```
 
+注意如果执行的是一个外链脚本，比如 jsfiddle 的内嵌 demo，请确保引入 [external-script](zh-cn/plugins?id=外链脚本-external-script) 插件。
diff --git a/lib/docsify.js b/lib/docsify.js
index 776c9acc..ea391830 100644
--- a/lib/docsify.js
+++ b/lib/docsify.js
@@ -161,7 +161,7 @@ function getNode (el, noCache) {
   if ( noCache === void 0 ) noCache = false;
 
   if (typeof el === 'string') {
-    el = noCache ? find(el) : (cacheNode[el] || find(el));
+    el = noCache ? find(el) : (cacheNode[el] || (cacheNode[el] = find(el)));
   }
 
   return el
diff --git a/lib/docsify.min.js b/lib/docsify.min.js
index 1837ca31..7062af93 100644
--- a/lib/docsify.min.js
+++ b/lib/docsify.min.js
@@ -1,2 +1,2 @@
-!function(){"use strict";function e(e){var t=Object.create(null);return function(n){var r=t[n];return r||(t[n]=e(n))}}function t(e){return"string"==typeof e||"number"==typeof e}function n(){}function r(e){return"function"==typeof e}function i(e){var t=["init","mounted","beforeEach","afterEach","doneEach","ready"];e._hooks={},e._lifecycle={},t.forEach(function(t){var n=e._hooks[t]=[];e._lifecycle[t]=function(e){return n.push(e)}})}function a(e,t,r,i){void 0===i&&(i=n);var a=r,o=e._hooks[t],s=function(e){var t=o[e];if(e>=o.length)i(a);else if("function"==typeof t)if(2===t.length)t(r,function(t){a=t,s(e+1)});else{var n=t(r);a=void 0!==n?n:a,s(e+1)}else s(e+1)};s(0)}function o(e,t){return void 0===t&&(t=!1),"string"==typeof e&&(e=t?s(e):be[e]||s(e)),e}function s(e,t){return t?e.querySelector(t):ye.querySelector(e)}function l(e,t){return[].slice.call(t?e.querySelectorAll(t):ye.querySelectorAll(e))}function u(e,t){return e=ye.createElement(e),t&&(e.innerHTML=t),e}function c(e,t){return 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target="_blank"':e=x(e),t&&(t=' title="'+t+'"'),'<a href="'+e+'"'+t+r+">"+n+"</a>"},Ve.paragraph=function(e){return/^!&gt;/.test(e)?F("tip",e):/^\?&gt;/.test(e)?F("warn",e):"<p>"+e+"</p>"},Ve.image=function(e,t,n){var r=e,i=t?' title="'+t+'"':"";return Te(e)||(r=v(Xe,e)),'<img src="'+r+'" data-origin="'+e+'" alt="'+n+'"'+i+">"};var Ke=Object.freeze({markdown:Qe,sidebar:D,subSidebar:U,cover:G}),et={},tt=Object.freeze({cached:e,hyphenate:ce,merge:pe,isPrimitive:t,noop:n,isFn:r,UA:_e,isIE:Le,isMobile:Se}),nt=function(){window.Docsify={util:tt,dom:xe,render:Ke,route:Me,get:j,slugify:R},window.marked=We,window.Prism=Be},rt=ue.prototype;se(rt),ee(rt),Y(rt),ae(rt),ne(rt),nt(),setTimeout(function(e){return new ue},0)}();
diff --git a/lib/plugins/external-script.js b/lib/plugins/external-script.js
index 3c38e8f2..3a108832 100644
--- a/lib/plugins/external-script.js
+++ b/lib/plugins/external-script.js
@@ -2,27 +2,22 @@ this.D = this.D || {};
 (function () {
 'use strict';
 
-var scriptReg = /<script[^>]*src=["|'](.*)["|']>[^\w]*<\/script>/;
-var asyncReg = /<script[^>]*\s+async/;
-var deferReg = /<script[^>]*\s+defer/;
+function handleExternalScript () {
+  var container = Docsify.dom.getNode('#main');
+  var script = Docsify.dom.find(container, 'script');
 
-function handleExternalScript (html) {
-  var scriptMatch = html.match(scriptReg);
+  if (script && script.src) {
+    var newScript = document.createElement('script');['src', 'async', 'defer'].forEach(function (attribute) {
+      newScript[attribute] = script[attribute];
+    });
 
-  if (scriptMatch && scriptMatch.length > 1) {
-    var script = document.createElement('script');
-    script.src = scriptMatch[1];
-
-    if (asyncReg.test(scriptMatch[0])) { script.setAttribute('async', ''); }
-    if (deferReg.test(scriptMatch[0])) { script.setAttribute('defer', ''); }
-
-    var target = document.querySelector('#main');
-    target.appendChild(script);
+    script.parentNode.removeChild(script);
+    container.appendChild(newScript);
   }
 }
 
 var install = function (hook) {
-  hook.afterEach(handleExternalScript);
+  hook.doneEach(handleExternalScript);
 };
 
 window.$docsify.plugins = [].concat(install, window.$docsify.plugins);
diff --git a/lib/plugins/external-script.min.js b/lib/plugins/external-script.min.js
index a7fd791e..def9d590 100644
--- a/lib/plugins/external-script.min.js
+++ b/lib/plugins/external-script.min.js
@@ -1 +1 @@
-this.D=this.D||{},function(){"use strict";function t(t){var i=t.match(c);if(i&&i.length>1){var r=document.createElement("script");r.src=i[1],e.test(i[0])&&r.setAttribute("async",""),s.test(i[0])&&r.setAttribute("defer","");var n=document.querySelector("#main");n.appendChild(r)}}var c=/<script[^>]*src=["|'](.*)["|']>[^\w]*<\/script>/,e=/<script[^>]*\s+async/,s=/<script[^>]*\s+defer/,i=function(c){c.afterEach(t)};window.$docsify.plugins=[].concat(i,window.$docsify.plugins)}();
+this.D=this.D||{},function(){"use strict";function i(){var i=Docsify.dom.getNode("#main"),n=Docsify.dom.find(i,"script");if(n && n.src){var c=document.createElement("script");["src","async","defer"].forEach(function(i){c[i]=n[i]}),n.parentNode.removeChild(n),i.appendChild(c)}}var n=function(n){n.doneEach(i)};window.$docsify.plugins=[].concat(n,window.$docsify.plugins)}();
diff --git a/src/core/util/dom.js b/src/core/util/dom.js
index b6f16ae8..25346eb4 100644
--- a/src/core/util/dom.js
+++ b/src/core/util/dom.js
@@ -10,7 +10,7 @@ const cacheNode = {}
  */
 export function getNode (el, noCache = false) {
   if (typeof el === 'string') {
-    el = noCache ? find(el) : (cacheNode[el] || find(el))
+    el = noCache ? find(el) : (cacheNode[el] || (cacheNode[el] = find(el)))
   }
 
   return el
diff --git a/src/plugins/external-script.js b/src/plugins/external-script.js
index 8391079c..5d2771be 100644
--- a/src/plugins/external-script.js
+++ b/src/plugins/external-script.js
@@ -1,24 +1,21 @@
-const scriptReg = /<script[^>]*src=["|'](.*)["|']>[^\w]*<\/script>/
-const asyncReg = /<script[^>]*\s+async/
-const deferReg = /<script[^>]*\s+defer/
+function handleExternalScript () {
+  const container = Docsify.dom.getNode('#main')
+  const script = Docsify.dom.find(container, 'script')
 
-function handleExternalScript (html) {
-  const scriptMatch = html.match(scriptReg)
+  if (script && script.src) {
+    const newScript = document.createElement('script')
 
-  if (scriptMatch && scriptMatch.length > 1) {
-    const script = document.createElement('script')
-    script.src = scriptMatch[1]
+    ;['src', 'async', 'defer'].forEach(attribute => {
+      newScript[attribute] = script[attribute]
+    })
 
-    if (asyncReg.test(scriptMatch[0])) script.setAttribute('async', '')
-    if (deferReg.test(scriptMatch[0])) script.setAttribute('defer', '')
-
-    const target = document.querySelector('#main')
-    target.appendChild(script)
+    script.parentNode.removeChild(script)
+    container.appendChild(newScript)
   }
 }
 
 const install = function (hook) {
-  hook.afterEach(handleExternalScript)
+  hook.doneEach(handleExternalScript)
 }
 
 window.$docsify.plugins = [].concat(install, window.$docsify.plugins)