e-WordsからIT用語リストを取ってくる

ewords.rb

require 'nokogiri'
require 'open-uri'

# usage: ruby ewords.rb > keywords.txt

root_url = 'http://e-words.jp/'
indices = Nokogiri(open(root_url)).search('.index a')
result = []
indices.each_with_index { |index, i|
  warn "#{i+1} / #{indices.length} #{index.text}"
  result << Nokogiri(open(root_url + index['href'])).search('a[href^="../w"]').map(&:text)
}

puts result.join("\n")