Re: [xsl] fo:page-number-citation and dynamic id's

["G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx>]

At 2006-05-18 16:22 +0200, Alexander.RACHER@xxxxxxxx wrote:
> is there any possibility in fo to use dynamic id's in xsl / xsl-fo?

I'm not sure what you mean by a "dynamic id".

> background of my question:
> i need to generate 2 nearly identical (only one fo:block is different =
> address --> one document per address) output-docs. so i wrapped a
> xsl:for-each around the fo:page-sequence in my stylesheet. works great,
> also could reset the page-count in the second document (
> initial-page-number="1"). so for an output in pdf with 4 pages per
> individual document and 2 adressen/element i get 8 pages, which consist of
> 2 documents, each correctly page-numbered from 1 to 4.
>
> only one problem came up:
> i want to include page-numbers in the footer which look like 'page x of y'
> (also to be able to easily distinguish the 2 docs in my output-pdf). as
> long as only one document was the output, it worked. but if the whole
> fo:page-sequence is parsed more than one time, the solution with <
> fo:page-number-citation ref-id="last-page"/> didn't work any more because
> of multiple <fo:block id="last-page"/> (FOP-exception: "Property id
> "last-page" previously used; id values must be unique in document.").

Right ... the engine will stop at the first it finds.

> so my question is: is there any possibility in xsl / xsl-fo to generate
> such id's (which, in contrary to the 'generate-id()'-function, can also be
> called)?

"called"?  no.

> the concept i have in my mind is, that i generate one id
> 'last-page' for each //adressen/element , so each partial-output-document
> can be page-numbered like 'page x of y'.

You could just use the current node's id as generated by XSLT since 
that will be unique for each page sequence you produce.

> here's the relevant part of my xml:
> [...]
> <xsl:for-each select="//adressen/element">
> <fo:page-sequence master-reference="blattA4" initial-page-number="1"
> force-page-count="no-force">
> <fo:static-content flow-name="xsl-region-before">
> [...]
> <fo:blockalign="end">
> <fo:page-number/> von <fo:page-number-citation ref-id="last-page"/>

Here instead use <fo:page-number-citation ref-id="{generate-id(.)}"/>

> </fo:block>
> [...]
> <fo:block id="last-page"/>

Here instead use <fo:block id="{generate-id(.)}"/>

> </fo:flow>
> </fo:page-sequence>
> </xsl:for-each>
> </fo:root>
> </xsl:template>
>
> any ideas?

I hope this helps.

. . . . . . . . .  Ken

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