From: Chris Shea <chris@...>
Date: 2007-12-19T07:43:48+09:00
Subject: Re: Hpricot syntax different from Xpath ?

On Dec 18, 2007 3:34 PM, Celine <xhanrot@gmail.com> wrote:
> On Dec 18, 11:21 pm, Chris Shea <ch...@ruby.tie-rack.org> wrote:
>
> >
> > Well, it depends. It'd be helpful to see the page you're working with.
> > You might want to try asking the Hpricot mailing list as well (To
> > join: Send a message to hpri...@code.whytheluckystiff.net Cc:
> > w...@whytheluckystiff.net).
> >
> > Chris
>
> Hi Chris, thanks for your answer
> Here is the page I'm working with : http://finance.yahoo.com
> I want to retrieve value of Nasdaq (up left of the page).

I see. It's pretty easy to get using element attributes, which
resilient to page changes. If Yahoo decides to add a div in the
hierarchy, or add a new exchange, this shouldn't suddenly fail:

# assuming doc is the Hpricot object for finance.yahoo.com
doc.at('tr[@title="Nasdaq"]/td[2]')

Looking at the page source, the span element that contains the value
actually has an id (yfs_l10_^ixic), but it doesn't look stable, does
it?

> I sent the same message on Hpricot ML this afternoon, actually no
> answer.

I'm on the Hpricot ML and never saw it. Maybe a hiccup somewhere?

HTH,
Chris