When a literal result element (<B> in this case) is copied to the result
document then it is copied with all its in-scope namespaces
(xmlns:c="http://bar.com/ns" in this case). You can prevent this (probably)
using exclude-result-prefixes="c". I say "probably" because the rules,
especially in 1.0, aren't completely prescriptive for this case where you
have two prefixes bound to the same namespace uri.

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

> -----Original Message-----
> From: Plana, Richard [mailto:Richard.Plana@xxxxxxxxxxxxxxxx] 
> Sent: 24 January 2008 00:32
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: RE:  Adding Missing Element
> 
> 
> 
> -----Original Message-----
> From: David Carlisle [mailto:davidc@xxxxxxxxx]
> Sent: Wednesday, January 23, 2008 4:45 PM
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Re:  Adding Missing Element
> 
> 
> 
> > One question, though: currently, all added nodes from the template
> seem
> > to have an xmlns:n attribute added to the element. Where 
> can I switch
> > off the functionality that does this? (and yes, <A> belongs to the
> > namespace n).
> 
> XSLT will not add namespace declarations to the output if 
> that namespace
> binding is already in scope from an ancestor element. So barring a bug
> in your system, the output is probably not quite as this description
> would indicate, can you post a small example.
> 
> Input file:
> 
> <?xml version="1.0"?>
> <foo xmlns="http://bar.com/ns">
> <A/>
> <A><B/></A>
> <A/>
> <A><B><C/></B></A>
> </foo>
> 
> Transform:
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:transform version="1.0"
>                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>                xmlns:c="http://bar.com/ns"
> >
> 
>         <!-- The identity transform -->
>         <xsl:template match="@*|node()">
>                 <xsl:copy>
>                         <xsl:apply-templates select="@*|node()"/>
>                 </xsl:copy>
>         </xsl:template>
> 
>         <xsl:template match="c:A">
>                 <xsl:variable name="count"
> select="count(descendant-or-self::c:B)"/>
>                 <xsl:copy>
>                         <xsl:copy-of select="@*"/>
>                         <xsl:apply-templates/>
>                         <xsl:if test="$count = 0">
>                                 <B>
>                                         ZZZZZZZ
>                                 </B>
>                         </xsl:if>
>                 </xsl:copy>
>         </xsl:template>
> </xsl:transform>
> 
> Output:
> 
> <?xml version="1.0" encoding="UTF-8"?><foo xmlns="http://bar.com/ns">
> <A><B xmlns:c="http://bar.com/ns">
>                                         ZZZZZZZ
>                                 </B></A>
> <A><B/></A>
> <A><B xmlns:c="http://bar.com/ns">
>                                         ZZZZZZZ
>                                 </B></A>
> <A><B><C/></B></A>
> </foo>
> 
> Bug in my XSLT engine?
> --
> 
> Richard Plana