RE: [xsl] Joining children attributes with parent

[Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>]

And in XSLT 1.0:

<xsl:for-each select="//*">
  <xsl:for-each select="ancestor-or-self::*/@*">
    <xsl:if test="not(position=1)">
      <xsl:text>,</xsl:text>
    </xsl:if>
    <xsl:value-of select=".">

... don't worry about the performance: this is the kind of performance XSLT 
engines are built to do.

If your trees really are so big this is ever a problem, it could be helped 
by doing a recursive descent and passing parameters along the way:

<xsl:template match="*"/>
  <xsl:param name="ancestor-attrs" select="/.."/>
  <xsl:variable name="all-attrs" select="@* | $ancestor-attrs"/>
  <xsl:for-each select="$all-attrs">
    <xsl:if test="not(position=1)">
      <xsl:text>,</xsl:text>
    </xsl:if>
    <xsl:value-of select=".">
  </xsl:for-each>
  <xsl:apply-templates>
    <xsl:with-param name="ancestor-attrs" select="$all-attrs"/>
  </xsl:apply-templates>
</xsl:template>

But I wouldn't bother with that unless I had a real reason to. 
(Obsessive-compulsive disorder in itself is no good reason.)

Cheers,
Wendell

At 06:00 PM 12/3/2004, you wrote:
> No problem. In XSLT 2.0:
>
> xsl:for-each select="//*"
>   xsl:value-of select="string-join(ancestor-or-self::*/@att, ',')"
>
> Michael Kay
> http://www.saxonica.com/
>
> > -----Original Message-----
> > From: Ross Niemi [mailto:ross.niemi@xxxxxxxxx]
> > Sent: 03 December 2004 22:48
> > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> > Subject: [xsl] Joining children attributes with parent
> >
> > I'm not too sure if this is even possible in XSLT or if it may be too
> > slow when implemented (since a parent node may need to be revisited
> > multiple times), but this is what I'm trying to do:  I'm trying to
> > join a set of parent's attributes with its children's attributes and
> > their children's attributes for an arbitrary number of descendants
> > (this will be displayed in CSV format).  Would be nice if there is a
> > way to do this bottom up.
> >
> > input:
> >
> > parent1
> >   child1
> >   child2
> > parent2
> >   child3
> >   child4
> >     grandchild1
> >     grandchild2
> >
> > output (assuming each element is a set of attributes for the
> > element above):
> >
> > parent1,child1
> > parent1,child2
> > parent2,child3
> > parent2,child4,grandchild1
> > parent2,child4,grandchild2
> >
> > Cheers!
> >
> > -- Ross
> >

======================================================================
Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
Mulberry Technologies, Inc.                http://www.mulberrytech.com
17 West Jefferson Street                    Direct Phone: 301/315-9635
Suite 207                                          Phone: 301/315-9631
Rockville, MD  20850                                 Fax: 301/315-8285
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