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node_modules/@riotjs/compiler/src/utils/has-html-outside-root-node.js

@@ -0,0 +1,30 @@
+import {isObject} from '@riotjs/util/checks'
+/**
+ * Find whether there is html code outside of the root node
+ * @param   {RiotParser.Node} root - node generated by the riot compiler
+ * @param   {string}  code - riot tag source code
+ * @param   {Function} parse - riot parser function
+ * @returns {boolean} true if extra markup is detected
+ */
+export default function hasHTMLOutsideRootNode(root, code, parse) {
+  const additionalCode = root ? [
+    // head
+    code.substr(0, root.start),
+    // tail
+    code.substr(root.end, code.length)
+  ].join('').trim() : ''
+
+  if (additionalCode) {
+    // if there are parsing errors we assume that there are no html
+    // tags outside of the root node
+    try {
+      const { template, javascript, css } = parse(additionalCode).output
+
+      return [template, javascript, css].some(isObject)
+    } catch (error) {
+      return false
+    }
+  }
+
+  return false
+}