A representation of a DNS
name.
# File lib/resolv.rb, line 1241 def self.create(arg) case arg when Name return arg when String return Name.new(Label.split(arg), /\.\z/ =~ arg ? true : false) else raise ArgumentError.new("cannot interpret as DNS name: #{arg.inspect}") end end
Creates a new DNS
name from arg
. arg
can be:
# File lib/resolv.rb, line 1298 def subdomain_of?(other) raise ArgumentError, "not a domain name: #{other.inspect}" unless Name === other return false if @absolute != other.absolute? other_len = other.length return false if @labels.length <= other_len return @labels[-other_len, other_len] == other.to_a end
Returns true if other
is a subdomain.
Example:
domain = Resolv::DNS::Name.create("y.z") p Resolv::DNS::Name.create("w.x.y.z").subdomain_of?(domain) #=> true p Resolv::DNS::Name.create("x.y.z").subdomain_of?(domain) #=> true p Resolv::DNS::Name.create("y.z").subdomain_of?(domain) #=> false p Resolv::DNS::Name.create("z").subdomain_of?(domain) #=> false p Resolv::DNS::Name.create("x.y.z.").subdomain_of?(domain) #=> false p Resolv::DNS::Name.create("w.z").subdomain_of?(domain) #=> false
Ruby Core © 1993–2020 Yukihiro Matsumoto
Licensed under the Ruby License.
Ruby Standard Library © contributors
Licensed under their own licenses.