\\[[domain;]username[:password]@]hostname\share[\/]path

smb://[[domain;]username[:password]@]hostname[:]/share[\/]path

C:/path \\?\C:[\/]path /path ~/path

Regular expression ^(?:https?:)?(?:\/\/)?(?:+@)?(?:www\.)?(+) used below extracts domain with subdomains out of a full url. It skips protocol (ex: https:), "//", "@", www subdomain and then captures everything (ex: domain) before ":" or "/" or end of line.

Regex for extracting display_id from the URL