module Docs  class Eigen3 < UrlScraper    self.name = 'Eigen3'    self.type = 'eigen3'    self.slug = 'eigen3'    self.base_url = 'https://eigen.tuxfamily.org/dox/'    self.root_path = 'index.html'    self.initial_paths = [      "modules.html"    ]    self.release = '3.4.0'     self.links = {      home: 'https://eigen.tuxfamily.org',      code: 'https://gitlab.com/libeigen/eigen'    }     html_filters.push 'eigen3/entries', 'eigen3/clean_html', 'title'     # Remove the `clean_text` because Doxygen are actually creating empty    # anchor such as <a id="asd"></a> to do anchor link.. and that anchor    # will be removed by clean_text    self.text_filters = FilterStack.new    text_filters.push 'images', 'inner_html', 'attribution'       def get_latest_version(opts)      tags = get_gitlab_tags("gitlab.com", "libeigen", "eigen", opts)      tags[0]['name']    end     options[:attribution] = <<-HTML      &copy; Eigen.<br>      Licensed under the MPL2 License.    HTML     # Skip source code since it doesn't provide any useful docs    options[:skip_patterns] = [/_source/, /-members/, /__Reference\.html/, /_chapter\.html/, /\.txt/, /\.tgz/]     # TODO: replace cppreference    # options[:replace_urls] = { 'http://en.cppreference.com/w/cpp/' => 'cpp/' }     def parse(response) # Hook here because Nokogori removes whitespace from code fragments      last_idx = 0      # Process nested <div>s inside code fragment div.      while not (last_idx = response.body.index('<div class="fragment">', last_idx)).nil?        # enter code fragment <div>        level = 1        while not (last_idx = response.body.index(/<\/?div/, last_idx+1)).nil?          # skip nested divs inside.          if response.body[last_idx..last_idx+3] == '<div'            level += 1          else            level -= 1          end          break if level == 0 # exit code fragment        end        if not last_idx.nil? and response.body[last_idx..last_idx+5] == '</div>'          response.body[last_idx..last_idx+5] = '</pre>'        end      end      response.body.gsub! /[\r\n\s]*<div class="ttc"[^>]*>.*<\/div>[\r\n\s]*/, ""      response.body.gsub! /<div class="line">(.*?)<\/div>/m, "\\1"      response.body.gsub! '<div class="fragment">', '<pre class="fragment" data-language="cpp">'      super    end     def process_response?(response)      return false unless super      # Remove Empty pages.      response.body.index(/<div class="contents">[\r\n\s]*<\/div>/m).nil? and \        response.body.index(/<p>TODO: write this dox page!<\/p>/).nil?    end  endend