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Contents
# frozen_string_literal: true
module Kitchen
# A class to track and modify duplicate IDs in a document
#
class IdTracker
def initialize
@id_data = Hash.new { |hash, key| hash[key] = { count: 0, last_pasted: false } }
@id_copy_suffix = '_copy_'
end
# Keeps track that an element with the given ID has been copied. When such
# elements are pasted, this information is used to give those elements unique
# IDs that don't duplicate the original element.
#
# @param id [String] the ID
#
def record_id_copied(id)
return if id.blank?
@id_data[id][:count] += 1
@id_data[id][:last_pasted] = false
end
# Keeps track that an element with the given ID has been cut.
#
# @param id [String]
#
def record_id_cut(id)
return if id.blank?
@id_data[id][:count] -= 1 if @id_data[id][:count].positive?
@id_data[id][:last_pasted] = false
end
# Keeps track that an element with the given ID has been pasted.
#
# @param id [String]
#
def record_id_pasted(id)
return if id.blank?
@id_data[id][:count] += 1 if @id_data[id][:last_pasted]
@id_data[id][:last_pasted] = true
end
# Returns a unique ID given the ID of an element that was copied and is about
# to be pasted
#
# @param original_id [String]
# @return [String]
#
def modified_id_to_paste(original_id)
return nil if original_id.nil?
return '' if original_id.blank?
count = @id_data[original_id][:count]
# A count of 0 means the element was cut and this is the first paste, do not
# modify the ID; otherwise, use the uniquified ID.
if count.zero?
original_id
else
"#{original_id}#{@id_copy_suffix}#{count}"
end
end
end
end
Version data entries
24 entries across 24 versions & 1 rubygems