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Re: [xsl] Namespaces in output

2021-09-22 08:53:27
If an element in the result tree is in the XHTML namespace, that's because you 
put it there, and the way to get rid of the namespace declaration is to STOP 
putting it there.

The way you put it there depends on how you created the element. The three ways 
of creating an element are essentially

(a) xsl:element

(b) xsl:copy/copy-of

(c) literal result elements

With xsl:element, the new element goes in the namespace selected in the 
namespace attribute (as you indicate).

With xsl:copy/copy-of, it retains the namespace it had in the source document

With literal result elements, it retains the namespace that the LRE has in the 
stylesheet.

If you want to change the namespace of an element in the source document, you 
can't use xsl:copy/copy-of, you need to use xsl:element.

Michael Kay
Saxonica

On 22 Sep 2021, at 14:43, Terry Ofner tdofner(_at_)gmail(_dot_)com 
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:

I am processing html exported from InDesign documents. As such, Every html 
document comes with the standard doctype and namespace declarations: 

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml <http://www.w3.org/1999/xhtml>">

In the past, I have skirted the namespace tangle by manually removing the 
doctype and replacing <html xmlns="http://www.w3.org/1999/xhtml 
<http://www.w3.org/1999/xhtml>”> with an element name that the Oxygen xslt 
engine would not quibble about, such as <mybook>. Since I have too many 
documents to transform, I have left the doctype and html/namespace in place 
and modified the stylesheet namespace declarations like this:

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform 
<http://www.w3.org/1999/XSL/Transform>" 
    version="3.0" 
    xmlns="http://www.w3.org/1999/xhtml <http://www.w3.org/1999/xhtml>" 
    xpath-default-namespace="http://www.w3.org/1999/xhtml 
<http://www.w3.org/1999/xhtml>" 
    xmlns:map="http://www.w3.org/2005/xpath-functions/map 
<http://www.w3.org/2005/xpath-functions/map>" 
    xmlns:xs="http://www.w3.org/2001/XMLSchema 
<http://www.w3.org/2001/XMLSchema>"
    xmlns:saxon="http://saxon.sf.net/ <http://saxon.sf.net/>" 
    exclude-result-prefixes="xs map #default saxon"> 


Well and good. I can address the html elements directly in my stylesheet. 
However, the namespace http://www.w3.org/1999/xhtml 
<http://www.w3.org/1999/xhtml> appears in the root level element of all 
output documents:

<div xmlns="http://www.w3.org/1999/xhtml <http://www.w3.org/1999/xhtml>" 
class="apE">
    <p class="subhead_ap_topic">2.2 Yada Yada</p>
    <p class="subhead_ap_h2">Yuda</p>
    <p class="body_first">NNNN</p>
    <p class="subhead_ap_h4">MMMM</p>
    <p class="body_text">PPPP</p>
</div>

When I remove the namespace at the root level using <xsl:element name=“div” 
namespace="">, the http://www.w3.org/1999/xhtml 
<http://www.w3.org/1999/xhtml> namespace appears on all child elements:

<div class="apE">
    <p xmlns="http://www.w3.org/1999/xhtml <http://www.w3.org/1999/xhtml>" 
class="subhead_ap_topic">2.2 Yada Yada</p>
    <p xmlns="http://www.w3.org/1999/xhtml <http://www.w3.org/1999/xhtml>" 
class="subhead_ap_h2">Yuda</p>
    <p xmlns="http://www.w3.org/1999/xhtml <http://www.w3.org/1999/xhtml>" 
class="body_first">NNNN</p>
    <p xmlns="http://www.w3.org/1999/xhtml <http://www.w3.org/1999/xhtml>" 
class="subhead_ap_h4">MMMM</p>
    <p xmlns="http://www.w3.org/1999/xhtml <http://www.w3.org/1999/xhtml>" 
class="body_text">PPPP</p>
</div>

My question: Is it possible to remove all namespaces from my result 
documents—short of selecting * and rebuilding all elements using <xsl:element 
namespace=“”>? These namespace declarations don’t hamper the display of the 
resulting documents. However, text is text and the extra load, over pages and 
pages of such output can’t but add time to rendering pages. Of course, having 
one namespace declaration at the root level is preferable to having all child 
elements carrying a ns. 

Any help in this would be appreciated. 

Terry


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