The regex for YAML closing delimiter is to permissive

[saf-dmitry]

Describe the bug

Strings like -.. are recognized as YAML closing delimiter.

Small Reproducible Example

No response

Steps to Reproduce the Bug or Issue

This will be recognized as YAML frontmatter:

---
key: value
-..

Expected behavior

Strings like -.. are not recognized as YAML closing delimiter.

Screenshots or Videos

No response

Operating System Version

• OS: macOS 10.11

Visual Studio Code Version

v1.87

Additional context

The regex for YAML closing delimiter is to permissive, allowing false positives like e.g., -... More correct regex would be:

const LAST_DELIMITER_MATCH = /^([-]{3}|[.]{3})\s*?$/g;