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Re: [xsl] Typing variables

Subject: Re: [xsl] Typing variables
From: Michael Kay <mike@xxxxxxxxxxxx>
Date: Tue, 18 Sep 2012 10:09:37 +0100

As written, the type of the variable is a document node.

If you add an "as" clause, that changes the type. The type that would involve no conversion is a sequence of text nodes: text()+. However, if you specify xs:string+, that should force the conversion of the sequence of text nodes to a sequence of strings.

A sequence of text nodes doesn't always behave the same way as a sequence of strings. For example, xsl:value-of inserts a space between adjacent strings, but not between adjacent text nodes.

Michael Kay

On 18/09/2012 09:59, Ihe Onwuka wrote:
On Tue, Sep 18, 2012 at 9:50 AM, Andrew Welch <andrew.j.welch@xxxxxxxxx> wrote:
        <xsl:variable name="val">"<xsl:sequence
If you type $val as xs:string+ you don't get the right result, if you
type it as xs:string it doesn't type check.
Thats because you have a text node (the ") then the xsl:sequence... so
you will always get a sequence of more than 1 item.

If you want to use xs:string, you need to make sure the contents of
the variable is sequence of 1 item.

Yes but my original question was what was the type of

<xsl:variable name="thing">"<xsl:value-of
select="replace(.,',',concat($quot,',',$quot))"/>"</xsl:variable> and
the value of the variable $quot is obvious.

precisely because xs:string+ (although it types checks) wasn't giving
the right result and omitting a type does.

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