Test, validate and match regular expressions
Matches Nitroflare file hosting URLs with an optional protocol (http/https) and www subdomain, targeting the /view/ path. The pattern captures the alphanumeric file ID into group 1, followed by a slash and the remaining path (typically the filename). Useful for extracting file IDs or validating download links from Nitroflare's cloud storage service in scrapers, link checkers, or download managers.