parse_deps.rb

require 'open-uri'
require 'nokogiri'

class Department
  def initialize(department, classes)
    @department = department
    @classes = classes
  end

  def get_department()
    @department.split(' ')
  end
  def get_classes()
    @classes
  end
end

def main
  class_url = "https://www.ccsf.edu/Schedule/Fall/computer_science.shtml"
  html = Nokogiri::HTML(open(class_url))


  departments = []
  department = nil
  classes = []

  html.css("pre").children.each {|node|
    if node.name == "h2"

      if department != nil
        departments << Department.new(department, classes)
        department = nil
        classes = []
      end

      department = node.text
    elsif node.name == "span" and node.attr(:class) == "courseTitle"
      classes << node.text
    end
    departments << Department.new(department, classes)
  }

  departments.each {|dep|
    puts dep.get_department
  }
end


main