kakaku.com - fukutaro @ ウィキ

require "open-uri"
require "nkf"

url = ARGV[0] || "http://kakaku.com/item/K0000320573/?lid=shop_itemview_recommend_1"
opt = "-w -xm0"
opt2 = "-s -xm0"
open(url){|f|
# split(
# print NKF.nkf(opt, f.read) , "\n"

 NKF.nkf(opt, f.read).split(/\n/).each{|line|
   if line =~ /<p><span\sid="minPrice">最安価格\(税込\)：<a\shref=".*"><span>(.*)<\/span><\/a><\/span>/
     print  NKF.nkf(opt2, $1)
   end
 }
# print f.read

}