Class: RDoc::Markup::ToAnsi

### Home Classes Methods

### In Files

- lib/rdoc/markup/to_ansi.rb

### Parent

RDoc::Markup::ToRdoc

### Methods

- ::new
- #accept_list_item_end
- #accept_list_item_start
- #init_tags
- #start_accepting

### Files

- CVE-2013-0256.rdoc
- DEVELOPERS.rdoc
- LICENSE.rdoc
- Manifest.txt
- README.rdoc
- RI.rdoc
- Rakefile
- TODO.rdoc

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# RDoc::Markup::ToAnsi

Outputs RDoc markup with vibrant ANSI color!

### Public Class Methods

new(markup = nil) click to toggle source

Creates a new ToAnsi visitor that is ready to output vibrant ANSI color!

    # File lib/rdoc/markup/to_ansi.rb, line 9
    def initialize markup = nil
      super

      @headings.clear
      @headings[1] = ["\e[1;32m", "\e[m"] # bold
      @headings[2] = ["\e[4;32m", "\e[m"] # underline
      @headings[3] = ["\e[32m",   "\e[m"] # just green
    end

### Public Instance Methods

accept_list_item_end(list_item) click to toggle source

Overrides indent width to ensure output lines up correctly.

    # File lib/rdoc/markup/to_ansi.rb, line 30
    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" unless res.length == 1
                2
              else
                bullet = @list_index.last.to_s
                @list_index[-1] = @list_index.last.succ
                bullet.length + 2
              end

      @indent -= width
    end

accept_list_item_start(list_item) click to toggle source

Adds coloring to note and label list items

    # File lib/rdoc/markup/to_ansi.rb, line 54
    def accept_list_item_start list_item
      bullet = case @list_type.last
               when :BULLET then
                 '*'
               when :NOTE, :LABEL then
                 labels = Array(list_item.label).map do |label|
                   attributes(label).strip
                 end.join "\n"

                 labels << ":\n" unless labels.empty?

                 labels
               else
                 @list_index.last.to_s + '.'
               end

      case @list_type.last
      when :NOTE, :LABEL then
        @indent += 2
        @prefix = bullet + (' ' * @indent)
      else
        @prefix = (' ' * @indent) + bullet.ljust(bullet.length + 1)

        width = bullet.gsub(/\e\[[\d;]*m/, '').length + 1

        @indent += width
      end
    end

init_tags() click to toggle source

Maps attributes to ANSI sequences

    # File lib/rdoc/markup/to_ansi.rb, line 21
    def init_tags
      add_tag :BOLD, "\e[1m", "\e[m"
      add_tag :TT,   "\e[7m", "\e[m"
      add_tag :EM,   "\e[4m", "\e[m"
    end

start_accepting() click to toggle source

Starts accepting with a reset screen

    # File lib/rdoc/markup/to_ansi.rb, line 86
    def start_accepting
      super

      @res = ["\e[0m"]
    end

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