1 files changed, 19 insertions, 0 deletions
diff --git a/node_modules/vuepress/lib/markdown/preWrapper.js b/node_modules/vuepress/lib/markdown/preWrapper.js
new file mode 100644
index 00000000..8f1b1d73
--- /dev/null
+++ b/node_modules/vuepress/lib/markdown/preWrapper.js
@@ -0,0 +1,19 @@
+// markdown-it plugin for wrapping <pre> ... </pre>.
+//
+// If your plugin was chained before preWrapper, you can add additional eleemnt directly.
+// If your plugin was chained after preWrapper, you can use these slots:
+//   1. <!--beforebegin-->
+//   2. <!--afterbegin-->
+//   3. <!--beforeend-->
+//   4. <!--afterend-->
+
+module.exports = md => {
+  const fence = md.renderer.rules.fence
+  md.renderer.rules.fence = (...args) => {
+    const [tokens, idx] = args
+    const token = tokens[idx]
+    const rawCode = fence(...args)
+    return `<!--beforebegin--><div class="language-${token.info.trim()} extra-class">` +
+    `<!--afterbegin-->${rawCode}<!--beforeend--></div><!--afterend-->`
+  }
+}