module Docs  class Gnuplot < FileScraper    self.type = 'gnuplot'    self.release = '5.4.0'    self.links = {      home: 'http://www.gnuplot.info/',      code: 'https://sourceforge.net/projects/gnuplot/'    }     self.root_path = 'nofigures.html'     html_filters.push 'gnuplot/entries', 'gnuplot/clean_html'     options[:skip_links] = false     options[:skip] = %w(      Copyright.html      External_libraries.html      Known_limitations.html      Introduction.html      About_this_document.html      New_features.html      Differences_from_version_4.html      Seeking_assistance.html      Gnuplot.html      Deprecated_syntax.html      Demos_Online_Examples.html      Terminal_types.html      Plotting_styles.html      Commands.html      Contents.html      Bugs.html      Index.html    )     options[:attribution] = <<-HTML      Copyright 1986 - 1993, 1998, 2004   Thomas Williams, Colin Kelley<br>      Distributed under the <a href="https://sourceforge.net/p/gnuplot/gnuplot-main/ci/master/tree/Copyright">gnuplot license</a> (rights to distribute modified versions are withheld).    HTML     def get_latest_version(opts)      doc = fetch_doc('http://www.gnuplot.info/download.html', opts)      label = doc.at_css('h2').content.strip      label.sub(/[^0-9.]*/, '')    end  endend