class PublicSuffix::Rule::Exception

Exception represents an exception rule (e.g. !parliament.uk).

Public Class Methods

new(definition, private: false) click to toggle source

Initializes a new rule from definition.

The bang ! is removed from the value, as it's common for each wildcard rule.

@param definition [String] the rule as defined in the PSL

Calls superclass method PublicSuffix::Rule::Base.new
# File lib/public_suffix/rule.rb, line 271
def initialize(definition, private: false)
  super(definition.to_s[1..-1], private: private)
end

Public Instance Methods

decompose(domain) click to toggle source

Decomposes the domain name according to rule properties.

@param [String, to_s] name The domain name to decompose @return [Array<String>] The array with [trd + sld, tld].

# File lib/public_suffix/rule.rb, line 286
def decompose(domain)
  suffix = parts.join('\.')
  matches = domain.to_s.match(/^(.*)\.(#{suffix})$/)
  matches ? matches[1..2] : [nil, nil]
end
length() click to toggle source

Gets the length of this rule for comparison, represented by the number of dot-separated parts in the rule.

@return [Integer] The length of the rule.

# File lib/public_suffix/rule.rb, line 309
def length
  @length ||= parts.length
end
parts() click to toggle source

dot-split rule value and returns all rule parts in the order they appear in the value. The leftmost label is not considered a label.

See publicsuffix.org/format/: If the prevailing rule is a exception rule, modify it by removing the leftmost label.

@return [Array<String>]

# File lib/public_suffix/rule.rb, line 301
def parts
  @value.split(DOT)[1..-1]
end
rule() click to toggle source

Gets the original rule definition.

@return [String] The rule definition.

# File lib/public_suffix/rule.rb, line 278
def rule
  BANG + value
end