From: Jeremy Milarsky <jmilarsky@...>
Date: 2007-12-25T03:28:01+09:00
Subject: Re: Double slash in Hpricot...?

A follow-up question:

"/" is supposed to be synonymous with Hpricot::Elem#search ... is "//" 
as well?

Phlip wrote:
> Daniel Waite wrote:
> 
>> What's the purpose of the double slash in Hpricot?
>>
>> doc.search("/html/body//p")
> 
> Google for an XPath tutorial. // is XPathic for the "any descendant" 
> axis.
> So the above matches any <p> (presumably the first) in the body of a
> document.
> 
> The equivalent in XPath would be assert_xpath('/html/body//p'). I don't 
> know
> how close Hpricot comes to XPath, which can do things like this:
> 
> assert_xpath ".//Statement[ last() - 1 ]"
> 
> 
> That matches the second-to-last item called <Statement>
> 
> However, REXML::XPath cannot handle common XHTML idioms...
> 
> Can't we all just ... get along?

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