Re: [xsl] Constructing complex xs:string in variable

["David Carlisle d.p.carlisle@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

On Wed, 9 Oct 2019 at 14:27, Christian Roth
mulberrytech-lists@xxxxxxxx <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
wrote:
>
> [re-sending - initial one didn't make it to the listb&?]
>
> Hello,
>
> I'm using XSLT2.
>
> I need to construct a complex string in a variable. I wanted to use XSLT
instructions for this, not pure XPath. I'm struggling with coercing the result
of the <xsl:variable> body to a single xs:string, not a sequence of
xs:string:
>
>
> <xsl:variable name="var" as="xs:string">
>   <xsl:text>prefix</xsl:text>
>   <xsl:value-of select="'part1'"/>
>   <!-- follows more complex code producing further fragments of desired
result string -->
> </xsl:variable>
>
>
> This gives me the error message (Saxon HE 9): "A sequence of more than one
item is not allowed as the value of variable $var ("prefix", "part1")"
>
> Of course, I could declare the variable as xs:string+ and then use
string-join( $var, '' ) on every use of $var, or create another variable that
holds the concatenated result of $var.
>

<xsl:variable name="var" as="xs:string">
<xsl:value-of>
  <xsl:text>prefix</xsl:text>
  <xsl:value-of select="'part1'"/>
  <!-- follows more complex code producing further fragments of
desired result string -->
</xsl:value-of>
</xsl:variable>

David