Re: Seek an XPath expression which concatenates an ar

string-join() ?


On 15/03/2024 13:53, Roger L Costello costello@xxxxxxxxx wrote:
> Hi Folks,
>
> Eek! A basic question...
>
> I have an XML document containing an arbitrary number of <binary-value> elements:
>
> <Document>
>      <binary-value>0100</binary-value>
>      <binary-value>11</binary-value>
>      <binary-value>1010001</binary-value>
>      ...
> </Document>
>
> I want an XPath expression which concatenates the binary values into one long string:
>
> 0100111010001...
>
> I thought this would work:
>
> concat(for $i in //binary-value return $i)
>
> but that gives an error, "Cannot find a 1-argument function named concat"
>
> What is the correct XPath, please?
>

-- 
*John Lumley* MA PhD CEng FIEE
john@xxxxxxxxxxxx