chore: remove old parser

tools/challenge-parser/tests-to-data.js

@@ -0,0 +1,55 @@
+const visit = require('unist-util-visit');
+const YAML = require('js-yaml');
+const unified = require('unified');
+const markdown = require('remark-parse');
+const remark2rehype = require('remark-rehype');
+const html = require('rehype-stringify');
+const raw = require('rehype-raw');
+
+const processor = unified()
+  .use(markdown)
+  .use(remark2rehype, { allowDangerousHTML: true })
+  .use(raw)
+  .use(html);
+
+function mdToHTML(str) {
+  return processor.processSync(str).toString();
+}
+
+function plugin() {
+  return transformer;
+
+  function transformer(tree, file) {
+    visit(tree, 'code', visitor);
+
+    function visitor(node) {
+      const { lang, value } = node;
+      if (lang === 'yml') {
+        const tests = YAML.load(value);
+        if (tests.question) {
+          // mdToHTML can not parse numbers. If an answer is a number
+          // (i.e. 5, not '5') it has to be converted.
+          tests.question.answers = tests.question.answers.map(answer =>
+            mdToHTML(answer.toString())
+          );
+          tests.question.text = mdToHTML(tests.question.text);
+        }
+        // since tests are overloaded (they're both a list of projects and
+        // actual tests), it's necessary to check which they are:
+        if (tests.tests && tests.tests[0] && tests.tests[0].text) {
+          tests.tests = tests.tests.map(({ text, testString }) => ({
+            text: mdToHTML(text),
+            testString
+          }));
+        }
+        file.data = {
+          ...file.data,
+          ...tests
+        };
+      }
+    }
+  }
+}
+
+module.exports = plugin;
+module.exports.mdToHTML = mdToHTML;