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RE: "xmlns" problem for transform

2005-08-04 13:18:27
xx:node-set() is the conventional way we describe a set of functions
provided by different vendors of XSLT 1.0 processors: msxml:node-set() for
MSXML, xalan:node-set() for Xalan, saxon:node-set() for Saxon,
oracle:node-set() for Oracle, etc. (Sometimes without the hyphen). Choose
the one that suits your processor. In XSLT 2.0, you don't need the function:
instead of

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

do

<xsl:apply-templates select="$output-of-phase-1" />

Sorry if I sometimes abbreviate my answers too much, you never know how much
knowledge the person asking the question already has, or how good they are
at looking it up if they don't know.

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


-----Original Message-----
From: Chenzhou Cui [mailto:ccz(_at_)bao(_dot_)ac(_dot_)cn] 
Sent: 04 August 2005 20:34
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] "xmlns" problem for transform

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(_at_)bao(_dot_)ac(_dot_)cn] 
Sent: 03 August 2005 21:29
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
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(_at_)lists(_dot_)mulberrytech(_dot_)com scripsit Chenzhou Cui 
    

         

<ccz(_at_)bao(_dot_)ac(_dot_)cn>:
  

       

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(_at_)bao(_dot_)ac(_dot_)cn
Beijing 100012, China             | WWW: www.lamost.org/~cb
============================================================



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-- 
============================================================
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(_at_)bao(_dot_)ac(_dot_)cn
Beijing 100012, China             | WWW: www.lamost.org/~cb
============================================================



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-- 
============================================================
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(_at_)bao(_dot_)ac(_dot_)cn
Beijing 100012, China             | WWW: www.lamost.org/~cb
============================================================



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