From: 7stud -- <bbxx789_05ss@...>
Date: 2009-10-12T13:05:58+09:00
Subject: Re: Can't use variable from cgi with hpricot

Wiley Davis wrote:
> 
>> Other than that, your code looks ok to me, so I would check your form 
>> data. Something like the following should get recognized by cgi.
> 
> Just to be sure, I checked the form and it looks okay.
> 
>> CGI is a fickle little LIB, but she'll start to do your bidding once she 
>> feels that you know what you are doing. 
> 
> Darn... that'll be a while :)
> 
>> If you just can't get CGI to read the form data, you can try to access 
>> the data using ARGV as if the string was a command line variable to your 
>> script.
> 
> As noted below, cgi seems to be reading the string. I can read it and 
> display it with a:
> 
> puts @linky
> 
> but whenever i try to pass it along to hpricot, it gives me a server 
> error. Odd.

What's the server error?

I installed eruby, and I was able to configure eruby to work with my own 
Apache2 install on mac osx 10.4.11,

(per the instructions in pickaxe2 p. 243 (a sym link didn't work, I 
actually had to copy the file into cgi-bin))

and despite my earlier post, your code works fine for me using Apache 
and localhost, although you can use open() with a block, and then you 
don't have to manually close the file:

test.rhtml
---------

<html>
<head>
  <title>html page</title>
</head>
<body>
  <div>hi</div>
  <div>world</div>
<div>
<%
require 'rubygems'
require 'cgi'
require 'open-uri'
require 'hpricot'

cgi = CGI.new
linky = cgi['link']

open(linky) do |f|
    doc = Hpricot(f)
    title = doc/"title"
    puts title.inner_html
end

%>
</div>

</body>
</html>

--web browser displays:--
hi
world
pedalpower.com
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