使用机械与正则表达式选择以下链接中的特定文本

Question

我有一页如下：

#<Mechanize::Page::Link
   "TCO11_IIIE"
   "/me/secure/ViewSample.do?id=211112">
  #<Mechanize::Page::Link
   "TCO15_IIIE"
   "/me/secure/do?id=211113">
  #<Mechanize::Page::Link
   "TCO16_IIC"
   "/me/secure/ViewSample.do?id=211114">
  #<Mechanize::Page::Link
   "TCO17_IIC"
   "/me/secure/ViewSample.do?id=211116">
  #<Mechanize::Page::Link
   "TCO17_IIIE"
   "/me/secure/ViewSample.do?id=211115">
  #<Mechanize::Page::Link
   "TCO19_IID"
   "/me/secure/ViewSample.do?id=211117">
  #<Mechanize::Page::Link
   "TCO21_IIC"
   "/me/secure/ViewSample.do?id=211118">
  #<Mechanize::Page::Link
   "TCO21_IIIE"
   "/me/secure/do?id=211119">
  #<Mechanize::Page::Link
   "TCO23_IIC"
   "/me/secure/do?id=211120">

我正在编写一个脚本，试图遵循其中包含“ViewSample”的链接(然后下载以fq结尾但与这个问题无关的特定链接)。

我对如何做到这一点有点困惑，因为我认为.search和.links_with方法需要精确的字符串来处理整个链接文本(？？或者是href？？)。因此，我认为需要在下面代码的第一行中有一个正则表达式：

master_page.search("ViewSample") do |download_list_link|
    download_list_page = agent.get(download_list_link[:href])

    download_list_page.search("td > a") do |link|
        if link.content.include?("fq.gz")
            out_file = File.new("downloaded_file", "w")
            out_file.puts($agent.get_file(link[:href]))
            out_file.close
        end
    end
end

Answer 1

这就是select的目的：

page.links.select{|link| link.href[/ViewSample/]}

或

page.search('a').select{|a| a[:href][/ViewSample/]}