From 886cf249e95a93c684c8d608f2e900cba6994f2b Mon Sep 17 00:00:00 2001
From: endiliey <endiliey@gmail.com>
Date: Fri, 8 Jun 2018 00:29:31 +0800
Subject: [PATCH] if 'usePrism' is true, use prismjs on all languages

---
 docs/api-doc-markdown.md   | 2 +-
 docs/api-site-config.md    | 2 +-
 lib/core/renderMarkdown.js | 5 ++---
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/docs/api-doc-markdown.md b/docs/api-doc-markdown.md
index 7653300c773f..a5aa60cc43b5 100644
--- a/docs/api-doc-markdown.md
+++ b/docs/api-doc-markdown.md
@@ -183,7 +183,7 @@ While Highlight.js provides support for [many popular languages out of the box](
 
 ### Using Prism.js as additional syntax highlighter
 
-While highlight.js support a lot of languages, you can opt to use prism.js to syntax highlight certain languages available on [Prism](https://github.com/PrismJS/prism/tree/master/components). Include those languages in `usePrism` field in your [siteConfig.js](site-config.md)
+While highlight.js support a lot of languages, you can opt to use prism.js to syntax highlight certain languages available on [Prism](https://github.com/PrismJS/prism/tree/master/components). Include those languages in `usePrism` field in your [siteConfig.js](api-site-config.md)
 
 Example:
 ```
diff --git a/docs/api-site-config.md b/docs/api-site-config.md
index 49e331c94c03..8c16fe5888d9 100644
--- a/docs/api-site-config.md
+++ b/docs/api-site-config.md
@@ -173,7 +173,7 @@ h1 {
 
 `users` - The `users` array mentioned earlier.
 
-`usePrism` - Array of languages to use prism.js syntax highlighter. Refer to [Using PrismJS as additional syntax highlighter](api-doc-markdown.md#using-prismjs-as-additional-syntax-highlighter).
+`usePrism` - Array of languages to use prism.js syntax highlighter. Refer to [Using PrismJS as additional syntax highlighter](api-doc-markdown.md#using-prismjs-as-additional-syntax-highlighter). Set it to `true` to use PrismJS on all languages.
 
 `wrapPagesHTML` - Boolean flag to indicate whether `html` files in `/pages` should be wrapped with Docusaurus site styles, header and footer. This feature is experimental and relies on the files being `html` fragments instead of complete pages. It inserts the contents of your `html` file with no extra processing. Defaults to `false`.
 
diff --git a/lib/core/renderMarkdown.js b/lib/core/renderMarkdown.js
index 1c5440ed7857..e2e6b9b729d9 100644
--- a/lib/core/renderMarkdown.js
+++ b/lib/core/renderMarkdown.js
@@ -30,10 +30,9 @@ class MarkdownRenderer {
           lang || (siteConfig.highlight && siteConfig.highlight.defaultLang);
         if (lang && hljs.getLanguage(lang)) {
           try {
-            // try to use prism.js for certain language
             if (
-              siteConfig.usePrism &&
-              siteConfig.usePrism.indexOf(lang) !== -1
+              siteConfig.usePrism === true ||
+              (siteConfig.usePrism && siteConfig.usePrism.indexOf(lang) !== -1)
             ) {
               try {
                 const language = alias[lang] || lang;