JezK
Edit File: to_table_of_contents.rb
# frozen_string_literal: true ## # Extracts just the RDoc::Markup::Heading elements from a # RDoc::Markup::Document to help build a table of contents class RDoc::Markup::ToTableOfContents < RDoc::Markup::Formatter @to_toc = nil ## # Singleton for table-of-contents generation def self.to_toc @to_toc ||= new end ## # Output accumulator attr_reader :res ## # Omits headings with a level less than the given level. attr_accessor :omit_headings_below def initialize # :nodoc: super nil @omit_headings_below = nil end ## # Adds +document+ to the output, using its heading cutoff if present def accept_document document @omit_headings_below = document.omit_headings_below super end ## # Adds +heading+ to the table of contents def accept_heading heading @res << heading unless suppressed? heading end ## # Returns the table of contents def end_accepting @res end ## # Prepares the visitor for text generation def start_accepting @omit_headings_below = nil @res = [] end ## # Returns true if +heading+ is below the display threshold def suppressed? heading return false unless @omit_headings_below heading.level > @omit_headings_below end # :stopdoc: alias accept_block_quote ignore alias accept_raw ignore alias accept_rule ignore alias accept_blank_line ignore alias accept_paragraph ignore alias accept_verbatim ignore alias accept_list_end ignore alias accept_list_item_start ignore alias accept_list_item_end ignore alias accept_list_end_bullet ignore alias accept_list_start ignore # :startdoc: end