Class: AsciiPress::Renderer

Inherits:
Object
  • Object
show all
Defined in:
lib/ascii_press.rb

Defined Under Namespace

Classes: Rendering

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Renderer

Returns a new instance of Renderer.



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# File 'lib/ascii_press.rb', line 49

def initialize(options = {})
  @options = options
end

Instance Method Details

#capture_stderr ⇒ Object 



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# File 'lib/ascii_press.rb', line 88

def capture_stderr
  real_stderr, $stderr = $stderr, StringIO.new
  yield
  $stderr.string
ensure
  $stderr = real_stderr
end

#render(adoc_file_path) ⇒ Object 



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# File 'lib/ascii_press.rb', line 53

def render(adoc_file_path)
  doc = nil
  errors = capture_stderr do
    document_text = File.read(adoc_file_path)
    base_dir = ::File.expand_path(File.dirname(adoc_file_path))
    if before_convertion = @options[:before_convertion]
      document_text = before_convertion.call(document_text)
    end
    doc = Asciidoctor.load(document_text, @options.merge(base_dir: base_dir))
  end
  puts errors.split(/[\n\r]+/).reject {|line| line.match(/out of sequence/) }.join("\n")

  html = doc.convert

  if after_conversion = @options[:after_conversion]
    html = after_conversion.call(html)
  end

  data = doc.attributes.each_with_object({}) do |(key, value), result|
    result[key.to_sym] = value.to_s
  end

  data.reject! {|_, value| value.nil? }

  Rendering.new(html, doc, data).tap do |rendering|
    rendering.tags = rendering.list_attribute_value('tags')
    rendering.tags << 'public' if rendering.attribute_exists?(:public)
    rendering.tags << 'private' if rendering.attribute_exists?(:private)

    if @options[:extra_tags_proc]
      rendering.tags.concat @options[:extra_tags_proc].call(rendering)
    end
  end
end