# frozen_string_literal: true
##
# A heading with a level (1-6) and text
RDoc::Markup::Heading =
Struct.new :level, :text do
@to_html = nil
@to_label = nil
##
# A singleton RDoc::Markup::ToLabel formatter for headings.
def self.to_label
@to_label ||= RDoc::Markup::ToLabel.new
end
##
# A singleton plain HTML formatter for headings. Used for creating labels
# for the Table of Contents
def self.to_html
return @to_html if @to_html
markup = RDoc::Markup.new
markup.add_regexp_handling RDoc::CrossReference::CROSSREF_REGEXP, :CROSSREF
@to_html = RDoc::Markup::ToHtml.new nil
def @to_html.handle_regexp_CROSSREF target
target.text.sub(/^\\/, '')
end
@to_html
end
##
# Calls #accept_heading on +visitor+
def accept visitor
visitor.accept_heading self
end
##
# An HTML-safe anchor reference for this header.
def aref
"label-#{self.class.to_label.convert text.dup}"
end
##
# Creates a fully-qualified label which will include the label from
# +context+. This helps keep ids unique in HTML.
def label context = nil
label = aref
label = [context.aref, label].compact.join '-' if
context and context.respond_to? :aref
label
end
##
# HTML markup of the text of this label without the surrounding header
# element.
def plain_html
self.class.to_html.to_html(text.dup)
end
def pretty_print q # :nodoc:
q.group 2, "[head: #{level} ", ']' do
q.pp text
end
end
end
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