Build, test, and debug regular expressions
This regex matches lines that start with `<`, end with `>`, and contain at least one forward slash somewhere in between. It's designed to detect XML or HTML tags, particularly closing tags (like `</tag>`) or self-closing tags (like `<tag/>`). With multiline and global flags enabled, it can identify multiple tag instances across a document. The pattern is permissive and may also match non-standard markup constructs.