Convert HTML Classes to CSS

html_classes_to_css.rb

html_file = ARGV[0]
css_file = "app/assets/stylesheets/css_output.css"
class_array = Array.new


open_html_file = File.readlines(html_file)
open_css_file = File.open(css_file, "w+")

open_html_file.each do |line|
  search_string = /class="[a-z]*"/
  if line.match?(search_string)
    nugget = line[search_string]
    class_name = nugget[7..-2]
    class_array.push(class_name)
  end
end

class_array.uniq!
class_array.sort!

class_array.each do |item|
  css_conversion = "\n." + item + "{\n\t\n}"
  open_css_file.write(css_conversion)
end