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##
# A Document containing lists, headings, paragraphs, etc.
class RDoc::Markup::Document
include Enumerable
##
# The file this document was created from. See also
# RDoc::ClassModule#add_comment
attr_reader :file
##
# If a heading is below the given level it will be omitted from the
# table_of_contents
attr_accessor :omit_headings_below
##
# The parts of the Document
attr_reader :parts
##
# Creates a new Document with +parts+
def initialize *parts
@parts = []
@parts.concat parts
@file = nil
@omit_headings_from_table_of_contents_below = nil
end
##
# Appends +part+ to the document
def << part
case part
when RDoc::Markup::Document then
unless part.empty? then
parts.concat part.parts
parts << RDoc::Markup::BlankLine.new
end
when String then
raise ArgumentError,
"expected RDoc::Markup::Document and friends, got String" unless
part.empty?
else
parts << part
end
end
def == other # :nodoc:
self.class == other.class and
@file == other.file and
@parts == other.parts
end
##
# Runs this document and all its #items through +visitor+
def accept visitor
visitor.start_accepting
visitor.accept_document self
visitor.end_accepting
end
##
# Concatenates the given +parts+ onto the document
def concat parts
self.parts.concat parts
end
##
# Enumerator for the parts of this document
def each &block
@parts.each(&block)
end
##
# Does this document have no parts?
def empty?
@parts.empty? or (@parts.length == 1 and merged? and @parts.first.empty?)
end
##
# The file this Document was created from.
def file= location
@file = case location
when RDoc::TopLevel then
location.relative_name
else
location
end
end
##
# When this is a collection of documents (#file is not set and this document
# contains only other documents as its direct children) #merge replaces
# documents in this class with documents from +other+ when the file matches
# and adds documents from +other+ when the files do not.
#
# The information in +other+ is preferred over the receiver
def merge other
if empty? then
@parts = other.parts
return self
end
other.parts.each do |other_part|
self.parts.delete_if do |self_part|
self_part.file and self_part.file == other_part.file
end
self.parts << other_part
end
self
end
##
# Does this Document contain other Documents?
def merged?
RDoc::Markup::Document === @parts.first
end
def pretty_print q # :nodoc:
start = @file ? "[doc (#{@file}): " : '[doc: '
q.group 2, start, ']' do
q.seplist @parts do |part|
q.pp part
end
end
end
##
# Appends +parts+ to the document
def push *parts
self.parts.concat parts
end
##
# Returns an Array of headings in the document.
#
# Require 'rdoc/markup/formatter' before calling this method.
def table_of_contents
accept RDoc::Markup::ToTableOfContents.to_toc
end
end