From nuprn1 at gmail.com  Mon Feb 12 15:02:05 2007
From: nuprn1 at gmail.com (rich fuller)
Date: Mon, 12 Feb 2007 18:02:05 -0500
Subject: [Greasemonkey] XPath Help: Selecting items before a tag within a
	span
Message-ID: <8ca7f43d0702121502y7ae68975p3cbe54e26bdcc1c5@mail.gmail.com>

Hello All,

I have what seems a fairly simple question but I'm not well versed in xpath.
I have a greasemonkey script used on a forum which takes youtube urls and
rewrites them into embed. The issue is some signatures have youtube urls so
I want to exclude those from the rules. The problem is that the only thing
which signifies a signatures in a post is a hr tag

like so:

<span class="posttext">
This is my post <a href="http://www.youtube.com/watch?v=Fcn4p213Zg8">youtube</a>
some most post stuff. more
<a href="http://www.youtube.com/watch?v=Fcn4p213Zg8">youtoube</a>.

<hr width="15%" size="1" align="left" style="color: black;"/>
start of my sig<br/>
<br/><a href="http://www.youtube.com/watch?v=pxZJKHToioM">Best vid ever</a>
</span>


which repeats over.


Here is my current xpath:
//span[@class='posttext']/a[contains(@HREF, 'youtube.com/watch?v')]

Is it possible to only select the needed urls before the hr tag only? (there
could be multiple youtube urls in a posttext span)

TIA
Rich

From boogs at youngpup.net  Mon Feb 12 15:53:14 2007
From: boogs at youngpup.net (Aaron Boodman)
Date: Mon, 12 Feb 2007 15:53:14 -0800
Subject: [Greasemonkey] XPath Help: Selecting items before a tag within
	a span
In-Reply-To: <8ca7f43d0702121502y7ae68975p3cbe54e26bdcc1c5@mail.gmail.com>
References: <8ca7f43d0702121502y7ae68975p3cbe54e26bdcc1c5@mail.gmail.com>
Message-ID: <f3e92ae50702121553r7a39d30fm4ab0b6bfa86424c1@mail.gmail.com>

> Here is my current xpath:
> //span[@class='posttext']/a[contains(@HREF, 'youtube.com/watch?v')]

//span[@class='posttext']/a[contains(@HREF, 'youtube.com/watch?v') and
not(preceding-sibling::hr)]

? (untested, but something like ought to work)

>
> Is it possible to only select the needed urls before the hr tag only? (there
> could be multiple youtube urls in a posttext span)
>
> TIA
> Rich
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