class NasdaqScraper

Public Instance Methods

parse_rows(rows) click to toggle source
# File lib/stock_index/scrapers/nasdaq_scraper.rb, line 8
def parse_rows(rows)
  rows.inject([]) do |array, li|
    symbol = /.+\((\w+)\)/.match(li)[1]
    symbol = 'SWKS' if symbol == 'SKWS' # wikipedia erratum
    market = 'XNAS'
    if symbol && market
      component = StockIndex::Component.new(symbol, market, wikipedia(li))
      array << component.attributes
    end
    array
  end
end
scrape() click to toggle source
# File lib/stock_index/scrapers/nasdaq_scraper.rb, line 3
def scrape
  doc = Nokogiri::HTML(open(StockIndex::INDICES['^NDX'][:url]))
  parse_rows doc.css('ol')[0].css('li')
end
wikipedia(li) click to toggle source
# File lib/stock_index/scrapers/nasdaq_scraper.rb, line 21
def wikipedia(li)
  wikipedia_path = li.css('a')[0].attributes['href'].value
  build_wikipedia_link(wikipedia_path)
end