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proc
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thread-self
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root
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opt
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alt
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ruby22
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lib64
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ruby
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2.2.0
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rdoc
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markup
/
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files >> //proc/thread-self/root/opt/alt/ruby22/lib64/ruby/2.2.0/rdoc/markup/to_rdoc.rb
## # Outputs RDoc markup as RDoc markup! (mostly) class RDoc::Markup::ToRdoc < RDoc::Markup::Formatter ## # Current indent amount for output in characters attr_accessor :indent ## # Output width in characters attr_accessor :width ## # Stack of current list indexes for alphabetic and numeric lists attr_reader :list_index ## # Stack of list types attr_reader :list_type ## # Stack of list widths for indentation attr_reader :list_width ## # Prefix for the next list item. See #use_prefix attr_reader :prefix ## # Output accumulator attr_reader :res ## # Creates a new formatter that will output (mostly) \RDoc markup def initialize markup = nil super nil, markup @markup.add_special(/\\\S/, :SUPPRESSED_CROSSREF) @width = 78 init_tags @headings = {} @headings.default = [] @headings[1] = ['= ', ''] @headings[2] = ['== ', ''] @headings[3] = ['=== ', ''] @headings[4] = ['==== ', ''] @headings[5] = ['===== ', ''] @headings[6] = ['====== ', ''] @hard_break = "\n" end ## # Maps attributes to HTML sequences def init_tags add_tag :BOLD, "<b>", "</b>" add_tag :TT, "<tt>", "</tt>" add_tag :EM, "<em>", "</em>" end ## # Adds +blank_line+ to the output def accept_blank_line blank_line @res << "\n" end ## # Adds +paragraph+ to the output def accept_block_quote block_quote @indent += 2 block_quote.parts.each do |part| @prefix = '> ' part.accept self end @indent -= 2 end ## # Adds +heading+ to the output def accept_heading heading use_prefix or @res << ' ' * @indent @res << @headings[heading.level][0] @res << attributes(heading.text) @res << @headings[heading.level][1] @res << "\n" end ## # Finishes consumption of +list+ def accept_list_end list @list_index.pop @list_type.pop @list_width.pop end ## # Finishes consumption of +list_item+ def accept_list_item_end list_item width = case @list_type.last when :BULLET then 2 when :NOTE, :LABEL then if @prefix then @res << @prefix.strip @prefix = nil end @res << "\n" 2 else bullet = @list_index.last.to_s @list_index[-1] = @list_index.last.succ bullet.length + 2 end @indent -= width end ## # Prepares the visitor for consuming +list_item+ def accept_list_item_start list_item type = @list_type.last case type when :NOTE, :LABEL then bullets = Array(list_item.label).map do |label| attributes(label).strip end.join "\n" bullets << ":\n" unless bullets.empty? @prefix = ' ' * @indent @indent += 2 @prefix << bullets + (' ' * @indent) else bullet = type == :BULLET ? '*' : @list_index.last.to_s + '.' @prefix = (' ' * @indent) + bullet.ljust(bullet.length + 1) width = bullet.length + 1 @indent += width end end ## # Prepares the visitor for consuming +list+ def accept_list_start list case list.type when :BULLET then @list_index << nil @list_width << 1 when :LABEL, :NOTE then @list_index << nil @list_width << 2 when :LALPHA then @list_index << 'a' @list_width << list.items.length.to_s.length when :NUMBER then @list_index << 1 @list_width << list.items.length.to_s.length when :UALPHA then @list_index << 'A' @list_width << list.items.length.to_s.length else raise RDoc::Error, "invalid list type #{list.type}" end @list_type << list.type end ## # Adds +paragraph+ to the output def accept_paragraph paragraph text = paragraph.text @hard_break wrap attributes text end ## # Adds +paragraph+ to the output def accept_indented_paragraph paragraph @indent += paragraph.indent text = paragraph.text @hard_break wrap attributes text @indent -= paragraph.indent end ## # Adds +raw+ to the output def accept_raw raw @res << raw.parts.join("\n") end ## # Adds +rule+ to the output def accept_rule rule use_prefix or @res << ' ' * @indent @res << '-' * (@width - @indent) @res << "\n" end ## # Outputs +verbatim+ indented 2 columns def accept_verbatim verbatim indent = ' ' * (@indent + 2) verbatim.parts.each do |part| @res << indent unless part == "\n" @res << part end @res << "\n" unless @res =~ /\n\z/ end ## # Applies attribute-specific markup to +text+ using RDoc::AttributeManager def attributes text flow = @am.flow text.dup convert_flow flow end ## # Returns the generated output def end_accepting @res.join end ## # Removes preceding \\ from the suppressed crossref +special+ def handle_special_SUPPRESSED_CROSSREF special text = special.text text = text.sub('\\', '') unless in_tt? text end ## # Adds a newline to the output def handle_special_HARD_BREAK special "\n" end ## # Prepares the visitor for text generation def start_accepting @res = [""] @indent = 0 @prefix = nil @list_index = [] @list_type = [] @list_width = [] end ## # Adds the stored #prefix to the output and clears it. Lists generate a # prefix for later consumption. def use_prefix prefix, @prefix = @prefix, nil @res << prefix if prefix prefix end ## # Wraps +text+ to #width def wrap text return unless text && !text.empty? text_len = @width - @indent text_len = 20 if text_len < 20 re = /^(.{0,#{text_len}})[ \n]/ next_prefix = ' ' * @indent prefix = @prefix || next_prefix @prefix = nil @res << prefix while text.length > text_len if text =~ re then @res << $1 text.slice!(0, $&.length) else @res << text.slice!(0, text_len) end @res << "\n" << next_prefix end if text.empty? then @res.pop @res.pop else @res << text @res << "\n" end end end
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