Add support for MDX (#30)

Author: bradlc

src/index.js

@@ -370,6 +370,10 @@ export const parsers = {
     prettierParserMeriyah.parsers.meriyah,
     transformJavaScript
   ),
+  __js_expression: createParser(
+    prettierParserBabel.parsers.__js_expression,
+    transformJavaScript
+  ),
   svelte: createParser(svelte.parsers.svelte, (ast, { env }) => {
     let changes = []
     transformSvelte(ast.html, { env, changes })

tests/test.js

@@ -143,6 +143,9 @@ let tests = {
   'babel-flow': javascript,
   espree: javascript,
   meriyah: javascript,
+  mdx: javascript
+    .filter((test) => !test.find((t) => /^\/\*/.test(t)))
+    .map((test) => test.map((t) => t.replace(/^;/, ''))),
   svelte: [
     t`<div class="${yes}" />`,
     t`<div class />`,