gistfile1.rb

# encoding: utf-8
require 'ostruct'
require 'hpricot'
require 'hpricot_scrub'
require 'open-uri'
require 'curb'
require 'uri'

class Page
  attr_reader :doc
  def initialize(url)
    @doc = Hpricot(open(url))
  end
end

class BookItem
  attr_reader :bookid, :url, :doc, :image, :title, :price, :author, :publisher, :pubdate, :isbn, :intro
  def initialize(bookid)
    @bookid = bookid
    @url = "http://www.books.com.tw/exep/prod/booksfile.php?item=#{bookid}"
    @doc = Page.new(url).doc
    image = b5tou8(doc.at('div.pri002_rec').to_s)
      if image.to_s =~ /.*(<img src=.*\/>)[<\/a>]*<\/div>.*/
        @image = $1
      else
        @image = image
      end
        author = get_author(doc)
        (doc/:h1).strip
        (doc/:div.class).strip
        (doc/:span).strip
        @title = b5tou8(doc.at('div.prd001').to_s.gsub(/\n/,'')).to_s.gsub('<div class="prd001">','').gsub(/<\/?dfn>/,'').gsub('</div>','')
        price = b5tou8(doc.search('div.cnt').to_s.gsub(/\n/,'')).to_s
        if price =~ /.*<li>定價：<dfn><u>(\d+)<\/u>元<\/dfn>.*/
                @price = $1
        else
                @price = '不詳'
        end
        author_u8 = b5tou8(author)
      if author_u8.to_s =~ /.*<li>作者：(\S+)<\/li> .*/
        @author = $1
      end
      if author_u8.to_s =~ /.*<li>出版社：(\S+)<\/li>.*/
        @publisher = $1
      end
      if author_u8.to_s =~ /.*<li>出版日期：<dfn>(\d+)年\d+月\d+日<\/dfn>.*/
        @pubdate = $1
      end
      if author_u8.to_s =~ /.*ISBN：<dfn>(\d+)<\/dfn>.*/
        @isbn = $1
      end
# 抓簡介
        intro = doc.at('table.spr01_free')
        @intro = b5tou8(intro.to_s.gsub('<br />',"<br />\n").gsub('</p>',"</p>\n"))
  end
end

  def get_author(doc)
    require 'hpricot_scrub'
    (doc/:a).strip
    (doc/:span).strip
    authors = doc.search('ul.prd002').to_s.gsub(/\n/,'')
    return authors.to_s
  end

  def b5tou8(big5)
   require 'iconv'
   utf8 = Iconv.iconv("UTF-8//IGNORE","BIG5//IGNORE",big5)
   return utf8[0]
  end