Re: [xsl] help needed with identity tranformation

[Tony Graham <Tony.Graham@xxxxxxxxxxxxxxxxxxxxxx>]

On Mon, Jan 28 2008 09:04:12 +0000, ericmutoniwabo@xxxxxxxxxxx wrote:
> Can some one help me with identity transformation?
...
> I want to change the "price" of "orange" to $4 for example. My logic is that I would
> insert an element  "price" with value $4.
>  I tried the xslt below without much success.

Saxon 8 gives this error message for your stylesheet.

  XPST0003: XPath syntax error at char 1 on line 7 in {$4}:
    expected "<name>", found "<numeric-literal>"

> transform.xslt
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet version="1.0"
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
> <!-- Import the identity transformation. -->
> <xsl:import href="identity.xslt"/>
> <xsl:template match="fruit/orange/price">
> <xsl:element name="{name()}"><xsl:value-of select="$4"/></xsl:element>
> </xsl:template>
> </xsl:stylesheet>
>
>
> I am using saxon as processor.
> when I apply "transform.xslt" against "fruit.xml", the value of 
> "fruit/orange/price" is not changing.
>  I can't seem to match the element that I want to change the
> value of.
> Anyone sees what I am doing wrong?

The new '$4' that you want to insert is literal text, but the value of
the 'select' attribute is an expression to be evaluated, and '$4' is not
a valid expression.

This should do what you want:

------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
  <!-- Import the identity transformation. -->
  <xsl:import href="identity.xslt"/>
  <xsl:template match="fruit/orange/price">
    <xsl:element name="{name()}">$4</xsl:element>
  </xsl:template>
</xsl:stylesheet>
------------------------------------------------------------

(Or you could have been long-winded and used '<xsl:value-of
select="'$4'"/>' to make the expression be the string '$4'.)

Regards,


Tony Graham.
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