PHP function in XSLT transformation

Post by **jtremblet** » Sun Jan 15, 2012 4:47 pm

Hello

I use PHP function in my template with this syntax


<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

    xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:php="http://php.net/xsl"

    xsl:extension-element-prefixes="php" exclude-result-prefixes="xhtml">



  <xsl:template match="report">

    <xsl:value-of select="php:functionString('my_function', 'parameter')"/>

  </xsl:template>

</xsl:stylesheet>

This code work well on the server but when I use oXygenXm; editor a error is displayed

E [Saxon6.5.5] Attribute xsl:extension-element-prefixes is not allowed on this element

What's wrong
Thank for your help

Post by **adrian** » Mon Jan 16, 2012 5:13 pm

Hello,

Saxon 6.5.5 does not accept xsl:extension-element-prefixes for some reason, but I see it works fine with extension-element-prefixes. Just remove the prefix and it will work.

Regards,
Adrian

Post by **Radu** » Tue Jan 17, 2012 11:34 am

Hi,

According to the XSLT 1.0 specification:

http://www.w3.org/TR/xslt#stylesheet-element

the extension-element-prefixes must not be prefixed in any way (it needs to be from no namespace).

Regards,
Radu

Post by **jtremblet** » Sun Jan 22, 2012 6:56 am

Thank you for your answers
http://www.w3.org/TR/xslt#extension explain the used of the extension but both are listed and seem to work correctly

A namespace is designated as an extension namespace by using an extension-element-prefixes attribute on an xsl:stylesheet element or an xsl:extension-element-prefixes attribute on a literal result element or extension element

oXygeXMLn is more stringent and I can't use it without this change.
I can't change these rules by myself on my project

Post by **Radu** » Mon Jan 23, 2012 1:20 pm

Hi,

I agree to the specification you quote but it's meaning (I've split the quoted spec in two) is like this:

A namespace is designated as an extension namespace by using an extension-element-prefixes attribute on an xsl:stylesheet element

which means this is valid:

Code: Select all

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

    xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:php="http://php.net/xsl"

    extension-element-prefixes="php" exclude-result-prefixes="xhtml">

......

or an xsl:extension-element-prefixes attribute on a literal result element or extension element

which means that this is valid:

Code: Select all

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

    xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:php="http://php.net/xsl"

    exclude-result-prefixes="xhtml">

    <xsl:template match="report">

        <head xsl:extension-element-prefixes="php">

            <xsl:value-of select="php:functionString('my_function', 'parameter')"/>

        </head>

    </xsl:template>

</xsl:stylesheet>

So you must use the "xsl:extension-element-prefixes" as an attribute of a literal result element (in this case the XHTML <head> element). In this case you must use the "xsl:" prefix.

And Saxon 6.5 used by Oxygen to validate XSLT 1.0 validates both cases.

Regards,
Radu

PHP function in XSLT transformation

PHP function in XSLT transformation

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