metadata: preserve CLI flag anchors

Signed-off-by: Herrtian <70463940+Herrtian@users.noreply.github.com>

Author: Herrtian

src/generators/metadata/constants.mjs

@@ -11,9 +11,9 @@ export const DOC_API_SLUGS_REPLACEMENTS = [
   { from: /node.js/i, to: 'nodejs' }, // Replace Node.js
   { from: /&/, to: '-and-' }, // Replace &
   { from: /[/,:;\\ ]/g, to: '-' }, // Replace /,:;\. and whitespace
-  { from: /^-+(?!-*$)/g, to: '' }, // Remove any leading hyphens
+  { from: /^-(?!-|$)/g, to: '' }, // Remove a single leading hyphen
   { from: /(?<!^-*)-+$/g, to: '' }, // Remove any trailing hyphens
-  { from: /^(?!-+$).*?(--+)/g, to: '-' }, // Replace multiple hyphens
+  { from: /^(?!-)(?!-+$).*?(--+)/g, to: '-' }, // Replace multiple hyphens
 ];
 
 // These are regular expressions used to determine if a given Markdown heading

src/generators/metadata/utils/__tests__/slugger.test.mjs

@@ -51,8 +51,8 @@ describe('slug', () => {
       assert.strictEqual(slug('-foo', identity), 'foo');
     });
 
-    it('removes multiple leading hyphens', () => {
-      assert.strictEqual(slug('--foo', identity), 'foo');
+    it('preserves multiple leading hyphens', () => {
+      assert.strictEqual(slug('--permission', identity), '--permission');
     });
 
     it('preserves an all-hyphen string', () => {
@@ -78,6 +78,10 @@ describe('slug', () => {
     it('does not fire on an all-hyphen string', () => {
       assert.strictEqual(slug('---', identity), '---');
     });
+
+    it('does not collapse leading double hyphen flags', () => {
+      assert.strictEqual(slug('--allow-fs-read', identity), '--allow-fs-read');
+    });
   });
 
   describe('integration with github-slugger', () => {