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# frozen_string_literal: true
##
# An item within a List that contains paragraphs, headings, etc.
#
# For BULLET, NUMBER, LALPHA and UALPHA lists, the label will always be nil.
# For NOTE and LABEL lists, the list label may contain:
#
# * a single String for a single label
# * an Array of Strings for a list item with multiple terms
# * nil for an extra description attached to a previously labeled list item
class RDoc::Markup::ListItem
##
# The label for the ListItem
attr_accessor :label
##
# Parts of the ListItem
attr_reader :parts
##
# Creates a new ListItem with an optional +label+ containing +parts+
def initialize label = nil, *parts
@label = label
@parts = []
@parts.concat parts
end
##
# Appends +part+ to the ListItem
def << part
@parts << part
end
def == other # :nodoc:
self.class == other.class and
@label == other.label and
@parts == other.parts
end
##
# Runs this list item and all its #parts through +visitor+
def accept visitor
visitor.accept_list_item_start self
@parts.each do |part|
part.accept visitor
end
visitor.accept_list_item_end self
end
##
# Is the ListItem empty?
def empty?
@parts.empty?
end
##
# Length of parts in the ListItem
def length
@parts.length
end
def pretty_print q # :nodoc:
q.group 2, '[item: ', ']' do
case @label
when Array then
q.pp @label
q.text ';'
q.breakable
when String then
q.pp @label
q.text ';'
q.breakable
end
q.seplist @parts do |part|
q.pp part
end
end
end
##
# Adds +parts+ to the ListItem
def push *parts
@parts.concat parts
end
end