fix: escape text in code block when lang is text or not specified vuejs#31

Author: lazzzis

lib/markdown/highlight.js

@@ -1,11 +1,15 @@
 const chalk = require('chalk')
 const prism = require('prismjs')
 const loadLanguages = require('prismjs/components/index')
+const escapeHtml = require('escape-html')
 
 // required to make embedded highlighting work...
 loadLanguages(['markup', 'css', 'javascript'])
 
 function wrap (code, lang) {
+  if (lang === 'text') {
+    code = escapeHtml(code)
+  }
   return `<pre v-pre class="language-${lang}"><code>${code}</code></pre>`
 }
 

package.json

@@ -51,6 +51,7 @@
     "copy-webpack-plugin": "^4.5.1",
     "css-loader": "^0.28.11",
     "es6-promise": "^4.2.4",
+    "escape-html": "^1.0.3",
     "file-loader": "^1.1.11",
     "globby": "^8.0.1",
     "html-webpack-plugin": "^3.2.0",

yarn.lock

@@ -1578,7 +1578,7 @@ es6-promise@^4.2.4:
   version "4.2.4"
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.4.tgz#dc4221c2b16518760bd8c39a52d8f356fc00ed29"
 
-escape-html@~1.0.1:
+escape-html@^1.0.3, escape-html@~1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"