Re: Expression XPath uniquement à but de localisation

> -----Original Message-----
> From: [email protected] [mailto:[email protected]]
> On Behalf Of Adrien Kmiecik
> Sent: vendredi 24 mars 2006 16:47
> To: [email protected]
> Subject: [xml-tech] Expression XPath uniquement à but de localisation
>
> Bonjour,
>
> Comment puis-je vérifier qu'une expression XPath 1.0 ne puisse renvoyer
> qu'un résultat de type Node-set ?
> En d'autres termes, je voudrais analyser l'expression et m'assurer
> qu'elle ne retourne ni booléen, ni chaîne ou valeur numérique...
>
> Si quelqu'un connaissait une regle simple et générique...
>
> Merci d'avance...!

Bonjour,

Si vous utilisez MSXML, c'est assez aisé, par exemple :

<?xml version="1.0" encoding="iso-8859-1" ?>

<xsl:transform
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:msxsl="urn:schemas-microsoft-com:xslt"
  xmlns:util="urn:mycompany.com:xslt-util"
  version="1.0">

<xsl:output method="text" encoding="iso-8859-1" />

<msxsl:script language="JScript" implements-prefix="util"><![CDATA[

function isnodeset(expr)
{
  if(typeof(expr) == "number")
    return false;
  if(typeof(expr) == "boolean")
    return false;
  if(typeof(expr) == "string")
    return false;
  return true;
}

]]></msxsl:script>

<xsl:variable name="myboolean" select="true()" />
<xsl:variable name="mynumber" select="123456" />
<xsl:variable name="mystring" select="'foobar'" />
<xsl:variable name="mynodeset" select="/*" />

<xsl:template match="/">

myboolean : <xsl:value-of select="util:isnodeset($myboolean)" />

mynumber : <xsl:value-of select="util:isnodeset($mynumber)" />

mystring : <xsl:value-of select="util:isnodeset($mystring)" />

mynodeset : <xsl:value-of select="util:isnodeset($mynodeset)" />

</xsl:template>

</xsl:transform>

Cordialement,

Cyril Jandia

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