Test, validate and match regular expressions
This regex extracts FontAwesome icon metadata including version numbers, icon class names (e.g., fa-home), and their corresponding Unicode code points in HTML entity format. It captures three groups: a version pattern (like 5.0.13), the fa-icon class name, and the 4-character hexadecimal Unicode value within &#x...; syntax. Useful for parsing FontAwesome documentation or extracting icon lists from versioned sources.