bump grammarkdown and account for unescaping of <

package.json

@@ -54,7 +54,7 @@
 		"ecmarkdown": "^8.1.0",
 		"eslint-formatter-codeframe": "^7.32.1",
 		"fast-glob": "^3.2.7",
-		"grammarkdown": "^3.2.0",
+		"grammarkdown": "^3.3.2",
 		"highlight.js": "11.0.1",
 		"html-escape": "^1.0.2",
 		"js-yaml": "^3.13.1",

src/formatter/grammarkdown.ts

@@ -6,6 +6,7 @@ import type {
   OneOfList,
   ParameterList,
   Trivia,
+  UnicodeCharacterLiteral,
 } from 'grammarkdown';
 import {
   NewLineKind,
@@ -249,6 +250,18 @@ class EmitterWithComments extends GrammarkdownEmitter {
     this.writer.write('> ');
     node.fragments && this.emitNodes(node.fragments);
   }
+
+  emitUnicodeCharacterLiteral(node: UnicodeCharacterLiteral) {
+    if (node.text?.startsWith('U+')) {
+      return super.emitUnicodeCharacterLiteral(node);
+    }
+    if (!(node.text?.startsWith('<') && node.text?.endsWith('>'))) {
+      throw new Error(`unreachable: unicode character literal is not wrapped in <>: ${JSON.stringify(node.text)}`)
+    }
+    this.writer.write('&lt;');
+    this.writer.write(node.text!.slice(1, -1));
+    this.writer.write('&gt;');
+  }
 }
 
 // uuuuugh, grammarkdown is only async

test/formatter.js

@@ -339,6 +339,8 @@ describe('grammar formatting', () => {
       A :
             B
             C#prod2
+            <ASCII>
+            U+2000
       </emu-grammar>
       `,
       dedentKeepingTrailingNewline`
@@ -351,6 +353,8 @@ describe('grammar formatting', () => {
         A :
           B
           C #prod2
+          &lt;ASCII&gt;
+          U+2000
       </emu-grammar>
       `,
     );