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# frozen_string_literal: true
module Regexp::Syntax
module Token
module Backreference
Plain = %i[number].freeze
NumberRef = %i[number_ref number_rel_ref].freeze
Number = Plain + NumberRef
Name = %i[name_ref].freeze
RecursionLevel = %i[name_recursion_ref number_recursion_ref].freeze
V1_8_6 = Plain
V1_9_1 = Name + NumberRef + RecursionLevel
All = V1_8_6 + V1_9_1
Type = :backref
end
# Type is the same as Backreference so keeping it here, for now.
module SubexpressionCall
Name = %i[name_call].freeze
Number = %i[number_call number_rel_call].freeze
All = Name + Number
end
Map[Backreference::Type] = Backreference::All +
SubexpressionCall::All
# alias for symmetry between token symbol and Expression class name
Backref = Backreference
end
end
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