devdocs/lib/docs/scrapers/gnu/gnu_fortran.rb

module Docs
  class GnuFortran < Gnu
    self.name = 'GNU Fortran'
    self.slug = 'gnu_fortran'
    self.links = {
      home: 'https://gcc.gnu.org/fortran/'
    }

    version '7' do
      self.release = '7.3.0'
      self.base_url = "https://gcc.gnu.org/onlinedocs/gcc-#{release}/gfortran/"
    end

    version '6' do
      self.release = '6.4.0'
      self.base_url = "https://gcc.gnu.org/onlinedocs/gcc-#{release}/gfortran/"
    end

    version '5' do
      self.release = '5.4.0'
      self.base_url = "https://gcc.gnu.org/onlinedocs/gcc-#{release}/gfortran/"
    end

    version '4' do
      self.release = '4.9.3'
      self.base_url = "https://gcc.gnu.org/onlinedocs/gcc-#{release}/gfortran/"
    end

    def get_latest_version(options, &block)
      fetch_doc('https://gcc.gnu.org/onlinedocs/', options) do |doc|
        label = doc.at_css('ul > li > ul > li > a').content.strip
        block.call label.scan(/([0-9.]+)/)[0][0]
      end
    end
  end
end