feat: tie in challenge parser

tools/challenge-md-parser/text-to-data.js

@@ -0,0 +1,32 @@
+const visit = require('unist-util-visit');
+const toHTML = require('hast-util-to-html');
+
+const sectionFilter = (
+  { type, tagName, properties: { id = '' } },
+  sectionId
+) => {
+  return type === 'element' && tagName === 'section' && id === sectionId;
+};
+
+function textToData(sectionIds) {
+  if (!sectionIds || !Array.isArray(sectionIds) || sectionIds.length <= 0) {
+    throw new Error("textToData must have an array of section id's supplied");
+  }
+  function transformer(tree, file) {
+    visit(tree, 'element', visitor);
+    function visitor(node) {
+      sectionIds.forEach(sectionId => {
+        if (sectionFilter(node, sectionId)) {
+          const textArray = toHTML(node);
+          file.data = {
+            ...file.data,
+            [sectionId]: textArray
+          };
+        }
+      });
+    }
+  }
+  return transformer;
+}
+
+module.exports = textToData;