[Bug] ".ini" syntax's indented comments are not highlighted

Reproducible in vscode.dev or in VS Code Desktop?

• Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

• Not reproducible in the monaco editor playground

Monaco Editor Playground Link

https://microsoft.github.io/monaco-editor/playground.html?source=v0.55.1#XQAAAAJcAQAAAAAAAABBqQkHQ5NjdMjwa-jY7SIQ9S7DNlzs5W-mwj0fe1ZCDRFc9ws9XQE0SJE1jc2VKxhaLFIw9vEWSxW3yscwzXRwRgmSaumWUF-TBOsVJ4S4FwfCDQb5-2uUHXTVAefbVSd9IzaZ_vv9VR9KugsKigJST0nA_Uq1vIej6483BzQM5jBKzt1pJt3lgW3g3DB6np2m2xz_hotEPprSNO66e6aZcVz2n6z8P_WsqhZfMELFixRqmWc4Z9bkb0BLGJLX4DAvnGbxAE6VdSj9F4FiNEUm--ITRtpxBN9FQb5ABxGks4vbZqD3IM2kq5fBRZIozk8KdDbLEoYWMGlW-WeysfQpHPvxLz7PYlwA1h9kuP7IGgk

Monaco Editor Playground Code

const value = /* set from `myEditor.getModel()`: */ `; Comment
key = value

  ; Comment
  key = value
`;

// Hover on each property to see its docs!
const myEditor = monaco.editor.create(document.getElementById("container"), {
	value,
	language: "ini",
	automaticLayout: true,
});

Reproduction Steps

1. Create an ".ini" file in Monaco
2. Add an un-indented line ; Comment, and observe that it is highlighted
3. Indent that line, such as ; Comment, and observe that it's no longer highlighted

Actual (Problematic) Behavior

Indented comments, such as ; Comment, are not highlighted

Expected Behavior

Indented comments should be highlighted, like is seen below in GitHub's syntax highlighting:

; Comment
    ; Comment

Additional Context

My agent says:

Root cause: Monaco's stock ini.ts defines the comment rule as /^\s*[#;].*$/ inside the  @whitespace  state. In  monarchCompile.ts , any rule whose regex starts with  ^  is flagged  matchOnlyAtLineStart=true  (and the  ^  is stripped). In  monarchLexer.ts  the match loop gates every rule with  if (pos === 0 || !rule.matchOnlyAtLineStart) . For an indented comment   ; comment , the sibling whitespace rule  /[ \t\r\n]+/  consumes the leading spaces first, advancing  pos  to 2; the comment rule is then skipped (pos≠0 and it's line-start-only), nothing else matches  ; , so Monaco applies  defaultToken  → the text renders white instead of comment-green. Non-indented comments work because  pos  is still 0 when the rule is reache

This issue is a pain for me because I'd very much like to indent our .ini files key/values and comments to make section headers foldable and easier to navigate, but if I attempt to do something like the below, our comments lose highlighting and wind up looking visually very similar to the key/value pairs:

[Section]
    ; Long comment explaining the reasons why we applied this
    ; setting, in what situations one might want to change it, and
    ; what the valid format for a new value is
    key = value