Re: [xsl] Error: sequence of more than one item not allowed

[Michael Kay <mike@xxxxxxxxxxxx>]

I think this is a case where your code is sufficiently wrong that I 
can't work out what it's trying to do, which means I can't tell you how 
to correct it. I think you need to explain the problem you are trying to 
solve - the most effective way of doing that is usually with specimen 
input and output.

Michael Kay
Saxonica

On 04/10/2011 10:42, Mark wrote:
> Of the two nearly parallel statements below, (2) raises the error: 
> "Sequence of more than one item not allowed as the second operand of 
> 'eq'."
>
> (1) groups-by the attribute ($format) and (2) by all the not ($format) 
> attributes found in <Formats>. My thinking was that in (2) the 
> 'group-by' would return a current-group() resolved to a single 
> attribute by the <xsl:for-each select"current()> statement, but if so, 
> I am clearly addressing that single attribute incorrectly. On the 
> other hand, no error is reported when in (2) the 
> group-by="@*[not(name(.)=$format)] resolves to a single attribute. Can 
> I specify the <xsl:if test="$item eq ???"/> to avoid this error in (2) 
> and still test against all of the not($format) attributes?
>
> Thanks,
> Mark
>
> (1)
> <xsl:for-each-group select="../../Stamp/Formats" 
> group-by="@*[name(.)=$format]">
> <xsl:for-each select="current-group()">
> <xsl:if test="$item eq @*[name(.)=$format]"> <!--No error -->
>
> (2)
> <xsl:for-each-group select="../../Stamp/Formats" 
> group-by="@*[not(name(.)=$format)]">
> <xsl:for-each select="current-group()">
> <xsl:if test="$item eq @*[not(name(.)=$format)]"> <!--  Error -->