Re: [xsl] accumulators and continuous numbering

["Martin Honnen martin.honnen@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

On 18.10.2019 21:08, Graydon graydon@xxxxxxxxx wrote:
> So I'm converting a bunch of OOXML into DITA using XSLT 3 in oXygen with
Saxon
> 9.8.0.12 PE.
>
> There's a requirement to use short (4 digit) unique identifiers for the
> resuling files and for these to be unique across the content set.  There
are
> many resulting DITA files per source OOXML document.
>
> "A chance to try accumulators!" I thought; I can pre-process the whole
thing
> with file numbers in attributes.  This isn't an attempt to use streaming;
I've
> got a few tens of MB of source.
>
> The accumulator works, BUT the number sequence restarts if I try to use the
> accumuator across a sequence of document nodes or a sequence of element
nodes.
> To produce a single continuous sequence of monotonically increasing
integers
> with the accumulator, I have to get the whole content set into the same
tree
> before creating the numbering attributes.
>
> Is that the expected behaviour?

Yes, I think so, an accumulator is specific to a document.


> I get one continous sequence of numbers.
>
> Is there a better way to get the single continuous sequence of numbers?

If don't want to create a result tree then I think instead of

<xsl:variable as="element(w:document)+" name="numberedSrc">
 <xsl:apply-templates mode="fileNumber" select="$contentSet" />
</xsl:variable>

you would need to use xsl:iterate select="$contentSet" and pass the
latest accumulator on as the parameter of xsl:iterate, like I have done
in https://xsltfiddle.liberty-development.net/bwdwrT

  <xsl:variable name="transformed-docs" as="element(root)*">
      <xsl:iterate select="$docs">
          <xsl:param name="sum" as="xs:integer" select="0"/>
          <xsl:apply-templates>
              <xsl:with-param name="sum" tunnel="yes" select="$sum"/>
          </xsl:apply-templates>
          <xsl:next-iteration>
              <xsl:with-param name="sum" select="$sum +
accumulator-after('acc-example')"/>
          </xsl:next-iteration>
      </xsl:iterate>
  </xsl:variable>

Not sure whether that is anything better, it seems to be a bit too
complicated.