Lars,
I works fine except for the following line:
<xsl:variable name="next-is-child" select=
"//hierarchy/node[parent = Label and child =
$next/Label]" />
The expression "parent = Label and child =
$next/Label" doesn't work. I have to assign them to
variables first:
xsl:variable name="valueOfParent" select="Label"/>
<xsl:variable name="valueOfChild"
select="$next/Label"/>
Is this XPath's problem?
Thanks a lot
Dongling
--- Lars Huttar <lars_huttar(_at_)sil(_dot_)org> wrote:
Dongling Ding wrote:
Hi Lars,
I tried to use the recursive way to generate
hierarchy
structure. The example I have is to generate
hierarchy
by recursively call template itself without
looking at
if it's sibling or child. So the structure would
be:
<A>
<B>
<C/>
</B>
</A>
However, my case is when I get a node I have to
look
at another table(the list of nodes containing
parent
and child elements) to see if this node is sibling
or
child.
<xsl:template match="/doc">
<xsl:call-template name="level">
<xsl:with-param name="node"
select="/doc/Node[1]"/>
</xsl:call-template>
</xsl:template>
<xsl:template name="level">
<xsl:param name="node"/>
<xsl:variable name="n"
select="normalize-space($node)"/>
<xsl:element name="{$n}">
<xsl:if test="$node/following::Node">
***** Here I have to look at another set of
**** elements
**** to decide if the current node is seiling or
***
child. If it is seiling, not call the template.
<xsl:call-template name="level">
<xsl:with-param name="node"
select="$node/following::Node"/>
</xsl:call-template>
</xsl:if>
</xsl:element>
</xsl:template>
So, how can I look at another set of elments. Or
just
like call a function with two parameters and
return
value is boolean in XSLT?
Sure, you could do that... in XSLT 1.0, you'd have
to
call a template, and the value wouldn't be boolean
as
such, but it could be a string that evaluates to
true()
or false() in a boolean context (depending on
whether its length
is positive or zero).
But it would probably be simpler to use an inline
XPath test,
as follows, than to call the above template with
parameters.
Anyway, here would be my solution, assuming your
input XML
document is something like
<doc>
<Members>
<Member>...</Member>
...
</Members>
<hierarchy>
...
</hierarchy>
</doc>
<xsl:template match="/doc">
<xsl:apply-templates
select="/doc/Members/Member[1]"/>
</xsl:template>
<xsl:template match="Member">
<xsl:variable name="next"
select="following-sibling::Member[1]" />
<xsl:variable name="next-is-child" select=
"//hierarchy/node[parent = Label and child =
$next/Label]" />
<xsl:variable name="n"
select="normalize-space(Label)"/>
<xsl:element name="{$n}">
<!-- If next Member is child of current Member,
process it inside
this result element. -->
<xsl:if test="$next-is-child">
<xsl:apply-templates select="$next" />
</xsl:if>
</xsl:element>
<!-- If next Member is not child of current
Member, process it outside
the above result element. -->
<xsl:if test="not($next-is-child)">
<xsl:apply-templates select="$next" />
</xsl:if>
</xsl:template>
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