emojify: simply either enable emojis or not

Author: ChoKaPeek

docs/configuration.md

@@ -398,20 +398,6 @@ 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.md?id=external-script) plugin.
 
-## noEmoji
-
-- type: `Boolean`
-
-Disabled emoji parse.
-
-```js
-window.$docsify = {
-  noEmoji: true,
-};
-```
-
-?> If this option is `false` but you don't want to emojify some specific colons, [refer to this](https://github.com/docsifyjs/docsify/issues/742#issuecomment-586313143)
-
 ## mergeNavbar
 
 - type: `Boolean`

docs/plugins.md

@@ -91,13 +91,18 @@ Configure by `data-ga`.
 
 ## emoji
 
-The default is to support parsing emoji. For example `:100:` will be parsed to :100:. But it is not precise because there is no matching non-emoji string. If you need to correctly parse the emoji string, you need install this plugin.
+Emoji parsing is disabled by default.
+To enable emoji parsing, you need to add the following plugin.
 
 ```html
 <script src="//cdn.jsdelivr.net/npm/docsify/lib/plugins/emoji.min.js"></script>
 ```
 
-?> If you don't want to parse to emoji, you can use __colon_<span>_</span> or `&#58;`. If you need to use in the title, we recommend using `&#58;`. For example, `&#58;100:`
+Only [Github emojis](https://gist.github.com/rxaviers/7360908) are searched and replaced.
+
+Code blocks are not parsed, thus :100: won't be rendered here: `:100:`.
+
+?> If you don't want a specific emoji to be parsed, you can replace a colon by __colon_<span>_</span> or `&#58;`. If you need to use in the title, we recommend using `&#58;`. For example, `&#58;100:`
 
 ## External Script
 

src/core/config.js

@@ -21,7 +21,6 @@ export default function(vm) {
       nameLink: window.location.pathname,
       autoHeader: false,
       executeScript: null,
-      noEmoji: false,
       ga: '',
       ext: '.md',
       mergeNavbar: false,

src/core/render/compiler.js

@@ -103,7 +103,7 @@ export class Compiler {
           html = compile.parser(text);
         }
 
-        html = config.noEmoji ? html : emojify(html);
+        html = emojify(html);
         slugify.clear();
 
         return html;

src/core/render/emojify.js

@@ -1,20 +1,14 @@
 import { inBrowser } from '../util/env';
 
-function replace(m, $1) {
-  return (
-    '<img class="emoji" src="https://github.githubassets.com/images/icons/emoji/' +
-    $1 +
-    '.png" alt="' +
-    $1 +
-    '" />'
-  );
-}
-
 export function emojify(text) {
+  if (!window.emojify) {
+    return text.replace(/__colon__/g, ':');
+  }
+
   return text
     .replace(/<(pre|template|code)[^>]*?>[\s\S]+?<\/(pre|template|code)>/g, m =>
       m.replace(/:/g, '__colon__')
     )
-    .replace(/:([a-z0-9_\-\+]+?):/g, (inBrowser && window.emojify) || replace)
+    .replace(/:([a-z0-9_\-\+]+?):/g, inBrowser && window.emojify)
     .replace(/__colon__/g, ':');
 }