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docs/src/parser/nodes/CodeExample.js

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+const { contentAsText } = require('../helpers')
+
+const languages = ['terrace', 'json', 'yaml', 'toml', 'javascript', 'typescript', 'c', 'python']
+
+module.exports = async (doc, rootLevel) => {
+  const { next, level, line, head, tail, match } = doc
+
+  const node = {
+    type: head(),
+    class: '',
+    languages: {}
+  }
+
+  while (await next(rootLevel)) {
+    if (match('class')) node.class = tail()
+
+    const languageLevel = level()
+    if (languages.includes(head())) {
+      node.languages[head()] = await contentAsText(doc, languageLevel)
+    }
+  }
+
+  return node
+}