Re: [xsl] "xmlns" problem for transform

Subject: Re: [xsl] "xmlns" problem for transform
From: Chenzhou Cui <ccz@xxxxxxxxx>
Date: Fri, 05 Aug 2005 03:34:21 +0800
Dear Michael,

I can't "xx:node-set" function from both XPath 1 and XPath 2. Problem is still there.

cheers,

Michael Kay wrote:

Then, how can I merge the template with my main template? I need them working as one program.



Think pipelines. First stage (optional): convert everything to the correct namespace. Second stage: do the real processing.

You can implement a pipeline either within a single stylesheet or with a
series of stylesheets linked at application level. In the first approach,
you typically do:

<xsl:variable name="output-of-phase-1">
 <xsl:apply-templates select="/" mode="phase-1"/>
</xsl:variable>

<xsl:variable name="output-of-phase-2">
 <xsl:apply-templates select="xx:node-set($output-of-phase-1)"
mode="phase-2"/>
</xsl:variable>

<xsl:template match="/">
 <xsl:copy-of select="$output-of-phase-N"/>
</xsl:template>

Michael Kay
http://www.saxonica.com/



cheers,
Chenzhou

Michael Kay wrote:



It's nothing to do with the presence or absence of a schema,

it's all to do


with the fact that X in namespace N is completely unrelated to X in
namespace N2, or X in no namespace.

You shouldn't get yourself into this situation where the

same vocabulary of


local names is used in more than one namespace. But if you

do (as RSS users


do) the best way is to write your transformation on the

assumption that the


names are in a namespace, and then write a preprocessing

transformation


where necessary to put them in that namespace. This is

essentially a variant


on the identity transform:

<xsl:template match="*[namespace-uri()='']">
<xsl:element name="{local-name()}" namespace="the.real.namespace">
  <xsl:copy-of select="@*"/>
  <xsl:apply-templates/>
</xsl:element>
</xsl:template>

Michael Kay
http://www.saxonica.com/






-----Original Message-----
From: Chenzhou Cui [mailto:ccz@xxxxxxxxx] Sent: 03 August 2005 21:29
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: [xsl] "xmlns" problem for transform


Dear Joris:

Thank you very much! Now the problem is PARTLY solved. After I add the non-default namespace for my xslt filter and all needed prefix, the filter works well with schema assigned data files. However, it can not transform files without schema. An opposite problem to before.

How can I do?

cheers,

Joris Gillis wrote:





Hi,

Tempore 21:02:56, die 08/03/2005 AD, hinc in xsl-list@xxxxxxxxxxxxxxxxxxxxxx scripsit Chenzhou Cui



<ccz@xxxxxxxxx>:




it can't transform
the body of sample file with "schema" assigned.




As the post's subject indicates, this is a



namespace-related problem



indeed.

The schema sets the default namespace to "http://www.ivoa.net/xml/VOTable/v1.1";, you need to define in your xslt a namespace with this uri and a chosen prefix (I know 'xmlns="http://www.ivoa.net/xml/VOTable/v1.1";' is already



present; you



need to add another non-default namespace declaration). e.g. 'xmlns:VOT="http://www.ivoa.net/xml/VOTable/v1.1";'

Next step is to find all element names in any xpath expression or pattern in your xslt and add the prefix.

e.g. <xsl:for-each select="//RESOURCE/TABLE/FIELD" /> becomes

<xsl:for-each select="//VOT:RESOURCE/VOT:TABLE/VOT:FIELD"/>

regards,




--
============================================================
Chenzhou Cui  (Chinese Virtual Observatory: China-VO)
National Astronomical Observatory | Tel: (8610)64841695
Chinese Academy of Sciences       | FAX: (8610)64878240
20A Datun Road, Chaoyang District | Email: ccz@xxxxxxxxx
Beijing 100012, China             | WWW: www.lamost.org/~cb
============================================================





--
============================================================
Chenzhou Cui  (Chinese Virtual Observatory: China-VO)
National Astronomical Observatory | Tel: (8610)64841695
Chinese Academy of Sciences       | FAX: (8610)64878240
20A Datun Road, Chaoyang District | Email: ccz@xxxxxxxxx
Beijing 100012, China             | WWW: www.lamost.org/~cb
============================================================




-- ============================================================ Chenzhou Cui (Chinese Virtual Observatory: China-VO) National Astronomical Observatory | Tel: (8610)64841695 Chinese Academy of Sciences | FAX: (8610)64878240 20A Datun Road, Chaoyang District | Email: ccz@xxxxxxxxx Beijing 100012, China | WWW: www.lamost.org/~cb ============================================================

Current Thread