#
# is_domain_name.rb
#
-
module Puppet::Parser::Functions
- newfunction(:is_domain_name, :type => :rvalue, :doc => <<-EOS
-Returns true if the string passed to this function is a syntactically correct domain name.
- EOS
- ) do |arguments|
+ newfunction(:is_domain_name, :type => :rvalue, :doc => <<-DOC
+ Returns true if the string passed to this function is a syntactically correct domain name.
+ DOC
+ ) do |arguments|
- if (arguments.size != 1) then
+ if arguments.size != 1
raise(Puppet::ParseError, "is_domain_name(): Wrong number of arguments given #{arguments.size} for 1")
end
domain = arguments[0].dup
# Limits (rfc1035, 3.1)
- domain_max_length=255
- label_min_length=1
- label_max_length=63
+ domain_max_length = 255
+ label_min_length = 1
+ label_max_length = 63
# Allow ".", it is the top level domain
return true if domain == '.'
# The top level domain must be alphabetic if there are multiple labels.
# See rfc1123, 2.1
- return false if domain.include? '.' and not /\.[A-Za-z]+$/.match(domain)
+ return false if domain.include?('.') && !%r{\.[A-Za-z]+$}.match(domain)
# Check each label in the domain
labels = domain.split('.')
break if label.length > label_max_length
break if label[-1..-1] == '-'
break if label[0..0] == '-'
- break unless /^[a-z\d-]+$/i.match(label)
+ break unless %r{^[a-z\d-]+$}i =~ label
end
return vlabels == labels
-
end
end