HTTP request class. This class wraps together the request header and the request path. You cannot use this class directly. Instead, you should use one of its subclasses: Net::HTTP::Get, Net::HTTP::Post, Net::HTTP::Head.
418 I’m a teapot - RFC 2324; a joke RFC 420 Enhance Your Calm - Twitter
444 No Response - Nginx 449 Retry With - Microsoft 450 Blocked by Windows Parental Controls - Microsoft 499 Client Closed Request - Nginx
The writer adapter class
Simple option list providing mapping from short and/or long option string to OptionParser::Switch and mapping from acceptable argument to matching pattern and converter pair. Also provides summary feature.
Raises when switch is undefined.
Raises when the given argument does not match required format.
An abstract class for enumerating pseudo-prime numbers.
Concrete subclasses should override succ, next, rewind.
Internal use. An implementation of Eratosthenes’ sieve
Resolv::Hosts is a hostname resolver that uses the system hosts file.