RE: [xsl] Convert string to a list of nodes

[Jeff Beadle <Jbeadle at manh dot com>]

I wrote a recursive template (this is a modified form) that does something
similar to what you want.  The main point, I guess is that you need to
create a recursive template in order to build the node list.

the xml:
<xml/>

the xsl:
<xsl:stylesheet  version="1.0"  xmlns:xsl
="http://www.w3.org/1999/XSL/Transform"; exclude-result-prefixes="xsl">

      <xsl:output method="xml" version="1.0" omit-xml-declaration = "yes"/>

	<xsl:template match="/">
		<xsl:call-template name="build-attribute-list">
			<xsl:with-param name="src-attribute-list">(name,Fred
Flintstone)(occupation,Excavation Engineer)</xsl:with-param>
		</xsl:call-template>
	</xsl:template>

      <xsl:template name="build-attribute-list">
            <!--
                  Builds attribute-list.

                  Input:=
                     $attributeList =
'(att1Name,att1Value)(att2Name,att2Value)'

                  Output:=
                  <attribute-list>
                     <attribute name="att1Name" value="att1Value"/>
                     <attribute name="att2Name" value="att2Value"/>
                     ...
                  </attribute-list>
            -->

            <!-- src-attribute-list = '(n,v)(n,v)(n,v) ... ' -->
            <xsl:param name="src-attribute-list" />
            <xsl:element name="attribute-list" >
	       <xsl:if test="''!=$src-attribute-list">
                      <xsl:call-template name="__att-list-constructor">
                          <xsl:with-param name="attribute-list"
select="normalize-space($src-attribute-list)"/>
                     </xsl:call-template >
	       </xsl:if>
            </xsl:element>
      </xsl:template>

      <xsl:template name="__att-list-constructor">
            <!-- recursive worker template for template
build-att-list-constructor -->

            <!-- attribute-list = '(n,v)(n,v)(n,v) ... ' -->
            <xsl:param name="attribute-list" />

            <!-- grabs the first n-v pair -->
            <xsl:variable name="pair" select="substring-before(
substring-after( $attribute-list,'(' ), ')' )"/>
            <xsl:if test="contains($pair,',') and $pair != '' ">
                <xsl:element name="attribute" >
                     <xsl:attribute name="name"><xsl:value-of
select="normalize-space( substring-before($pair,',') )"/></xsl:attribute>
                     <xsl:attribute name="value" ><xsl:value-of
select="normalize-space( substring-after($pair,',') )"/></xsl:attribute>
                </xsl:element>
                <xsl:call-template name="__att-list-constructor">
                    <xsl:with-param name="attribute-list"
select="substring-after( $attribute-list, concat( substring-after( $pair,
',' ), ')' ) )"/>
                </xsl:call-template >
            </xsl:if>
      </xsl:template>

</xsl:stylesheet>


the output:
<attribute-list>
<attribute name="name" value="Fred Flintstone" />
<attribute name="occupation" value="Excavation Engineer" />
</attribute-list>



hope this helps ...

-Jeff

-----Original Message-----
From: Alexandra Duda [mailto:oladuda@poczta.fm]
Sent: Tuesday, December 04, 2001 6:33 AM
To: XSL-List@lists.mulberrytech.com
Subject: [xsl] Convert string to a list of nodes


Hello all,

I have the following problem:
I have a template that should perform some action for a set of nodes. 
This set can contain a various number of elements, and each element is
unique within my XML document scope. This template looks moreless like this:
<xsl:template name="maintemplate">
  <xsl:param name="nodelist"></xsl:param>
  <!-- some other params -->

  <!--
   <![CDATA[
       here I want to proceed each node, that is listed in nodelist,
       something like <xsl:for-each> <xsl:call-template name="elemtempl">
       with some parameters.
      ]]> 
  -->
   
</xsl:template>

When I call this template, it should look like this:

<xsl:call-template name="maintemplate">
  <xsl:with-param name="nodelist">node1;node2;node3;node4</xsl:with-param>
   <!-- some params... -->
</xsl:call-template>

My question is: How can I convert the string from nodelist to set of nodes?
Or maybe there is another way to do, what I want to do, and my solution is
not the best way ? ;-)
Thanx for any help

ps.
my XML document looks moreless like this:
<elem1>
  <node1>value1</node1>
  <node2>value2</node2>
  <node3>value3</node3>
  ...
  <node7>
    <subnode1/>
    ...
  </node7>
</elem1>
...

Best regards,
Alexandra

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