Re: [xsl] Iterate through variable in XSLT?

[Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>]

Hi Yun Wu,

At 04:07 AM 8/18/2007, you wrote:
> basically i like to generic produce the following code rather then 
> write it by myself
>
> <xsl:template match="/">
> <classes>
>  <class>
>    <xsl:attribute name="name">
>    <xsl:text>classA</xsl:text>
>  </class>
>  <class>
>    <xsl:attribute name="name">
>    <xsl:text>classB</xsl:text>
>  </class>
>  <class>
>    <xsl:attribute name="name">
>    <xsl:text>classC</xsl:text>
>  </class>
>  <class>
>    <xsl:attribute name="name">
>    <xsl:text>classD</xsl:text>
>  </class>
> </classes>
> </xsl:template>

It isn't exactly clear what you actually want. For one, your example 
isn't well-formed. I am going to assume you want:

<class>
  <xsl:attribute name="name">
    <xsl:text>classA</xsl:text>
  </xsl:attribute>
</class>

... that is, you want to attach a series of class elements each with 
an attribute named "name" and a value "classX".

Then the next question is will it be simply

<class name="classX"/>

? if so, this is just generating a series of elements matching a 
series of values.

Given a series of values X:

<x>
  <value>classA</value>
  <value>classB</value>
  ...
  </value>classX</value>
</x>

then generating the source is pretty easy stuff, as you can 
undoubtedly see: you simply select the set of nodes x/* and generate 
'class' elements, populating their @name attributes accordingly:

(Having bound $values to x/value, depending on the context)

<xsl:for-each select="$values">
  <class name="{.}"/>
</xsl:for-each>

The only question remaining is how you want to make x/value available 
at runtime. There are many ways to do this; which is most convenient 
depends on your processing architecture.

So you probably need to pose a more specific question, correcting any 
mistaken assumptions in the above. My guess is you want to do 
something more complex, and/or you're actually asking about ways to 
make an arbitrary series of values available at runtime (i.e., how to 
bind a $values variable).

An external document called in with the document() function may be 
the simplest and most versatile way to do this.

Cheers,
Wendell


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