planning

node_modules/mdast-util-to-markdown/lib/util/check-bullet.js

@@ -0,0 +1,15 @@
+module.exports = checkBullet
+
+function checkBullet(context) {
+  var marker = context.options.bullet || '*'
+
+  if (marker !== '*' && marker !== '+' && marker !== '-') {
+    throw new Error(
+      'Cannot serialize items with `' +
+        marker +
+        '` for `options.bullet`, expected `*`, `+`, or `-`'
+    )
+  }
+
+  return marker
+}