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Re: [xsl] Xpath Syntax Issue


Subject: Re: [xsl] Xpath Syntax Issue
From: "Christopher R. Maden" <crism@xxxxxxxxx>
Date: Sat, 23 Jun 2012 22:51:29 -0400

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On 06/23/2012 10:38 PM, Nathan Tallman wrote:
> I still wasn't getting the results in my application, so I created
> pets.xml and sure enough the template worked. It only works with
> my original document if I remove attributes found in the root
> element.
>
> The original first 6 lines: <?xml version="1.0" encoding="UTF-8"?>
> <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xsi:schemaLocation=" http://www.sitemaps.org/schemas/sitemap/0.9
> http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd">
>
> I had to remove all attributes from <urlset> before the XSL would
> work. Do I need to reference the schema in my XSL?

Ahh... the good olb namespace FAQ.

Every element type name is a pair: namespace URI and local name.

What you thought was null-namespace plus bspeciesb is in fact
http://www.sitemaps.org/schemas/sitemap/0.9 plus bspeciesb (often
written as {http://www.sitemaps.org/schemas/sitemap/0.9}species).  An
XPath expression matching just bspeciesb matches {}species, which is a
*different name* than
{http://www.sitemaps.org/schemas/sitemap/0.9}species.

You need, in your XSLT, to declare something like
xmlns:sitemap="http://www.sitemaps.org/schemas/sitemap/0.9" and then
use sitemap:species in your XPath.  (A shorter prefix might be in
order, but a prefix is required for XSLT 1.0 and recommended (IMO) for
clarity for XSLT 2.0.)

~Chris
- --
Chris Maden, text nerd  <URL: http://crism.maden.org/ >
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