Draft for a reverse_markdown-confluence gem

confluence_pre.rb

class ConfluencePre < ReverseMarkdown::Converters::Pre

  def extract_language(node)
    brush = node['class'].to_s[/brush:\s?(:?.*);/, 1]
    brush || super
  end

end

ReverseMarkdown::Converters.register :pre, ConfluencePre.new

confluence_pre_spec.rb

describe ConfluencePre do
  let(:converter) { ConfluencePre.new }

  it 'extracts the brush correctly' do
    node = { 'class' => 'theme: Confluence; brush: html/xml; gutter: false' }
    expect(converter.extract_language(node)).to eq 'html/xml'
  end

  it 'returns nil if no brush was found' do
    node = { 'class' => 'theme: Confluence; gutter: false' }
    expect(converter.extract_language(node)).to be_nil
  end
end