[Bug] The reactive range of hovering of Markers is larger than the underlining range

[chengtie]

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 Code

monaco.languages.register({ id: 'myLanguage' });

monaco.editor.onDidCreateModel(function(model) {
      var markers = [{
        severity: monaco.MarkerSeverity.Error,
        startLineNumber: 1,
        startColumn: 3,
        endLineNumber: 1,
        endColumn: 4,
        message: 'need to correct c'
      },
      {
        severity: monaco.MarkerSeverity.Error,
        startLineNumber: 1,
        startColumn: 4,
        endLineNumber: 1,
        endColumn: 5,
        message: 'need to correct d'
      }];
      monaco.editor.setModelMarkers(model, 'myLanguage', markers);
});

var ed = monaco.editor.create(document.getElementById("container"), {
    value: "abcdefg",
    language: "myLanguage",
    lightbulb: { enabled: false },
})

Actual Behavior

1- If I hover on c (or put the focus between b and c, then press Ctrl+K Ctrl+I), both of the two messages are shown.

2- Similarly, if I hover on d (or put the focus between d and e, then press Ctrl+K Ctrl+I), both of the two messages are shown.

Expected Behavior

At Location 1, only the message for c is relevant and expected.

At Location 2, only the message for d is relevant and expected.

Additional Context

In Monaco Editor, Markers allow to underline a text and display a message when hovering over it. But I just realized that the reactive range of hovering is a little bit larger than the underlining range. As a consequence, messages can be confusing when two markers are adjacent.

[hediet]

I think this is by design - when a cursor touches two columns, both their hover message is shown.

[chengtie]

I think this is by design - when a cursor touches two columns, both their hover message is shown.

Thank you. Is there a way to customize or modify this setting?

[hediet]

Not that I know of.