module Docs  class Postgresql < UrlScraper    include FixInternalUrlsBehavior     self.name = 'PostgreSQL'    self.type = 'postgres'    self.root_path = 'reference.html'    self.initial_paths = %w(sql.html admin.html internals.html appendixes.html tutorial.html)    self.links = {      home: 'https://www.postgresql.org/',      code: 'https://git.postgresql.org/gitweb/?p=postgresql.git'    }     html_filters.insert_before 'normalize_urls', 'postgresql/extract_metadata'    html_filters.push 'postgresql/clean_html', 'postgresql/entries', 'title'     options[:title] = false    options[:root_title] = 'PostgreSQL'    options[:follow_links] = ->(filter) { filter.initial_page? }     options[:skip] = %w(      index.html      ddl-others.html      functions-event-triggers.html      functions-trigger.html      textsearch-migration.html      supported-platforms.html      error-message-reporting.html      error-style-guide.html      plhandler.html      sourcerepo.html      git.html      bug-reporting.html      client-interfaces.html)     options[:skip_patterns] = [      /\Ainstall/,      /\Aregress/,      /\Aprotocol/,      /\Asource/,      /\Anls/,      /\Afdw/,      /\Atablesample/,      /\Acustom-scan/,      /\Abki/,      /\Arelease/,      /\Acontrib-prog/,      /\Aexternal/,      /\Adocguide/,      /\Afeatures/,      /\Aunsupported-features/ ]     options[:attribution] = <<-HTML      &copy; 1996&ndash;2018 The PostgreSQL Global Development Group<br>      Licensed under the PostgreSQL License.    HTML     version '10' do      self.release = '10.3'      self.base_url = 'https://www.postgresql.org/docs/10/static/'    end     version '9.6' do      self.release = '9.6.6'      self.base_url = 'https://www.postgresql.org/docs/9.6/static/'       html_filters.insert_before 'postgresql/extract_metadata', 'postgresql/normalize_class_names'    end     version '9.5' do      self.release = '9.5.10'      self.base_url = 'https://www.postgresql.org/docs/9.5/static/'       html_filters.insert_before 'postgresql/extract_metadata', 'postgresql/normalize_class_names'    end     version '9.4' do      self.release = '9.4.15'      self.base_url = 'https://www.postgresql.org/docs/9.4/static/'       html_filters.insert_before 'postgresql/extract_metadata', 'postgresql/normalize_class_names'    end  endend