module Docs  class Dart < FileScraper    self.type = 'dart'    self.root_path = 'index.html'    self.links = {      home: 'https://dart.dev/',      code: 'https://github.com/dart-lang/sdk'    }     html_filters.push 'dart/entries', 'dart/clean_html'     options[:fix_urls] = ->(url) do      # localhost/dart-web_audio/..dart-io/dart-io-library.html > localhost/dart-io/dart-io-library.html      url.remove!(/[^\/]+\/\.\./)      url    end     options[:attribution] = <<-HTML      &copy; 2012 the Dart project authors<br>      Licensed under the BSD 3-Clause "New" or "Revised" License.    HTML     version '2' do      self.release = '2.18.5'      self.base_url = "https://api.dart.dev/stable/#{release}/"    end     version '1' do      self.release = '1.24.3'      self.base_url = "https://api.dart.dev/stable/#{release}/"    end     def get_latest_version(opts)      doc = fetch_doc('https://api.dart.dev/', opts)      label = doc.at_css('footer > span').content.strip      label.sub(/Dart\s*/, '')    end   endend