feat: support buffer boundaries

README.md

@@ -31,7 +31,7 @@ let regex = regjsgen.generate(ast);
 ## Support
 
 Tested on Node.js 16, 18, 20, and 22.<br>
-Compatible with regjsparser v0.12.0’s AST.
+Compatible with regjsparser v0.14.0’s AST.
 
 
 [ci]: https://github.com/bnjmnt4n/regjsgen/actions

package.json

@@ -32,6 +32,6 @@
   },
   "devDependencies": {
     "nyc": "^18.0.0",
-    "regjsparser": "^0.12.0"
+    "regjsparser": "^0.14.0"
   }
 }

regjsgen.js

@@ -149,6 +149,12 @@
         return '\\b';
       case 'not-boundary':
         return '\\B';
+      case 'start-buffer':
+        return '\\A';
+      case 'end-buffer':
+        return '\\z';
+      case 'end-buffer-optional-newline':
+        return '\\Z';
       default:
         throw Error('Invalid assertion');
     }

tests/error-tests.js

@@ -182,3 +182,8 @@ testGenerates(
   { 'type': 'alternative', 'body': [symbol('1'), value('null', 0)] },
   '1\\0'
 );
+
+// Buffer boundary anchors.
+testGenerates('start-of-buffer anchor', { 'type': 'anchor', 'kind': 'start-buffer' }, '\\A');
+testGenerates('end-of-buffer anchor', { 'type': 'anchor', 'kind': 'end-buffer' }, '\\z');
+testGenerates('end-of-buffer anchor with an optional newline', { 'type': 'anchor', 'kind': 'end-buffer-optional-newline' }, '\\Z');