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* lib/resolv.rb (Resolv::DNS::Name#subdomain_of?): new method.

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(Resolv::DNS::Name#inspect): ditto.
  Suggested by Sam Roberts.  [ruby-talk:129086]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7915 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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akr 2005-02-07 15:24:09 +00:00
parent b8f04a8bcb
commit 9bdb4b4b08
2 changed files with 37 additions and 0 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
Tue Feb 8 00:19:02 2005 Tanaka Akira <akr@m17n.org>
* lib/resolv.rb (Resolv::DNS::Name#subdomain_of?): new method.
(Resolv::DNS::Name#inspect): ditto.
Suggested by Sam Roberts. [ruby-talk:129086]
Mon Feb 7 23:14:11 2005 Tanaka Akira <akr@m17n.org>
* io.c (io_getc): flush rb_stdout before read fro stdin, which is

31
lib/resolv.rb
View file

@ -978,15 +978,38 @@ class Resolv
@absolute = absolute
end
def inspect
"#<#{self.class}: #{self.to_s}#{@absolute ? '.' : ''}>"
end
def absolute?
return @absolute
end
def ==(other)
return false unless Name === other
return @labels == other.to_a && @absolute == other.absolute?
end
alias eql? ==
# tests subdomain-of relation.
#
# 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
#
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
def hash
return @labels.hash ^ @absolute.hash
end
@ -1003,6 +1026,14 @@ class Resolv
return @labels[i]
end
# returns the domain name as a string.
#
# The domain name doesn't have a trailing dot even if the name object is
# absolute.
#
# p Resolv::DNS::Name.create("x.y.z.").to_s #=> "x.y.z"
# p Resolv::DNS::Name.create("x.y.z").to_s #=> "x.y.z"
#
def to_s
return @labels.join('.')
end