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

[Jeff Beadle <Jbeadle at manh dot com>]

here are two approaches to what I think your asking for:

approach 1:  (supplying the values pre-loaded into the att list constructor
string)

the xml:
<xml>
<width>20</width>
<class>label</class>
</xml>

the xsl: (updates only)
	...
	<xsl:template match="/"><xsl:apply-templates /></xsl:template>

	<xsl:template match="xml">
		<xsl:call-template name="build-attribute-list">
			<xsl:with-param name="src-attribute-list">
			(width,<xsl:apply-templates select="//width"/>)
			(class,<xsl:apply-templates select="//class"/>)
			</xsl:with-param>
		</xsl:call-template>
	</xsl:template>

	<xsl:template match="width">
		<xsl:value-of select="text()"/>
	</xsl:template>
	
	<xsl:template match="class">
		<xsl:value-of select="text()"/>
	</xsl:template>
	...

the output:
<attribute-list>
   <attribute name="width" value="20" />
   <attribute name="class" value="label" />
</attribute-list>



approach 2:  (letting the constructor resolve the value based on the
attribute name via a template match)


the xsl: (updates only)
	...
	<xsl:template match="/"><xsl:apply-templates /></xsl:template>
	<xsl:template match="xml">
		<xsl:call-template name="build-attribute-list">
			<xsl:with-param name="src-attribute-list">
			(width,"")
			(class,"")
			</xsl:with-param>
		</xsl:call-template>
	</xsl:template>

	<xsl:template match="width">
		<xsl:value-of select="text()"/>
	</xsl:template>
	
	<xsl:template match="class">
		<xsl:value-of select="text()"/>
	</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 $pair != '' ">
               	 	<xsl:element name="attribute" >
                	 		<xsl:variable name="the-name"
select="normalize-space( substring-before($pair,',') )"/>
                     			<xsl:attribute
name="name"><xsl:value-of select="$the-name"/></xsl:attribute>
                    	 		<xsl:variable name="the-value">
                     				<xsl:apply-templates
select="//*[local-name()=$the-name]"/>
                     			</xsl:variable> 
                     			<xsl:attribute name="value"
><xsl:value-of select="normalize-space($the-value)"/></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>
	...

the output:
<attribute-list>
   <attribute name="width" value="20" />
   <attribute name="class" value="label" />
</attribute-list>


If your going to do something like the second approach, then I'd re-engineer
the "__att-list-constructor" template to only take in your delimeted name
list ... which I guess you already did(?).

-Jeff


















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