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##
# A List is a homogeneous set of ListItems.
#
# The supported list types include:
#
# :BULLET::
# An unordered list
# :LABEL::
# An unordered definition list, but using an alternate RDoc::Markup syntax
# :LALPHA::
# An ordered list using increasing lowercase English letters
# :NOTE::
# An unordered definition list
# :NUMBER::
# An ordered list using increasing Arabic numerals
# :UALPHA::
# An ordered list using increasing uppercase English letters
#
# Definition lists behave like HTML definition lists. Each list item can
# describe multiple terms. See RDoc::Markup::ListItem for how labels and
# definition are stored as list items.
class RDoc::Markup::List
##
# The list's type
attr_accessor :type
##
# Items in the list
attr_reader :items
##
# Creates a new list of +type+ with +items+. Valid list types are:
# +:BULLET+, +:LABEL+, +:LALPHA+, +:NOTE+, +:NUMBER+, +:UALPHA+
def initialize type = nil, *items
@type = type
@items = []
@items.concat items
end
##
# Appends +item+ to the list
def << item
@items << item
end
def == other # :nodoc:
self.class == other.class and
@type == other.type and
@items == other.items
end
##
# Runs this list and all its #items through +visitor+
def accept visitor
visitor.accept_list_start self
@items.each do |item|
item.accept visitor
end
visitor.accept_list_end self
end
##
# Is the list empty?
def empty?
@items.empty?
end
##
# Returns the last item in the list
def last
@items.last
end
def pretty_print q # :nodoc:
q.group 2, "[list: #{@type} ", ']' do
q.seplist @items do |item|
q.pp item
end
end
end
##
# Appends +items+ to the list
def push *items
@items.concat items
end
end
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