Re: [docbook-apps] DocBook to FOP transformation produces "fo:table is missing child elements."

[Jason Gilmore <wj@wjgilmore.com>]

Thanks for all of your help on this, I appreciate it. I've also tried
without the custom stylesheet, instead pointing the stylesheet
argument to /usr/share/xml/docbook/stylesheet/nwalsh/fo/docbook.xsl,
yet the same error message occurs. BTW I am running Ubuntu 9.10, fop
1:0.95.dfsg-5, xsltproc 1.1.24-ubuntu2. Further, what's really crazy
is that if I use the very same conversion command to build another of
my books on the same machine, the table conversion works perfectly!!

Out of curiosity I did a Docbook -> HTML conversion using the same
source files, and the following command; the results are equally
bizarre. First the command I used then the HTML:

xsltproc \
  --stringparam generate.index 1 \
  --stringparam generate.toc "book toc" \
  --stringparam suppress.footer.navigation 0 \
  --stringparam suppress.navigation 1 \
  --stringparam header.rule 0 \
  --stringparam footer.rule 0 \
  --stringparam chunk.tocs.and.lots 0 \
  --stringparam navig.showtitles 0 \
  --stringparam toc.section.depth 0 \
  --stringparam chunk.section.depth 0 \
  --stringparam base.dir
/home/wjgilmore/books/easyphpwebsiteszendframework2e/output/ \
  /usr/share/xml/docbook/stylesheet/docbook-xsl/html/chunk.xsl \
  chapters/staging/book.docbook

And here is the HTML:

<div class="table-contents">
<table summary="Framework Conventions" border="1">
<colgroup>
<col><col>
</colgroup>
</table>
<thead>
<tr><!-- This row intentionally left blank --></tr>
</thead>
<tbody>
<tr><!-- This row intentionally left blank --></tr>
<tr><!-- This row intentionally left blank --></tr>
<tr><!-- This row intentionally left blank --></tr>
<tr><!-- This row intentionally left blank --></tr>
</tbody>
</div>

Why in the world is the data missing???

Thanks!
Jason

On Wed, Jun 9, 2010 at 5:52 PM, Bob Stayton <bobs@sagehill.net> wrote:
> OK, I don't see anything wrong with the table, then. It works when I process
> it with the stock stylesheets.
>
> I notice that you are using a stylesheet customization layer 'fostyles.xsl'.
> The next step is to process your document with the stock DocBook
> fo/docbook.xsl stylesheet instead.  If that works, then something is going
> on in your customization layer.
>
> Bob Stayton
> Sagehill Enterprises
> bobs@sagehill.net
>
>
> ----- Original Message ----- From: "Jason Gilmore" <wj@wjgilmore.com>
> To: <docbook-apps@lists.oasis-open.org>
> Sent: Wednesday, June 09, 2010 12:50 PM
> Subject: Re: [docbook-apps] DocBook to FOP transformation produces "fo:table
> is missing child elements."
>
>
> Agh actually I had included the cols attribute in the tgroup element
> previously, but out of desperation was trying to build a bare-bones
> table and had stripped that out. All previous table versions looked
> exactly like my original version, but did indeed include the cols
> attribute:
>
> <table>
> <title>Framework Conventions</title>
> <tgroup cols="2">
> <colspec colwidth="1*" />
> <colspec colwidth="2*" />
> <thead>
> ...
>
> Even so, I get the same error as previous, "fo:table is missing child
> elements.". What child elements could possibly be missing from this
> simple example?
>
> Thanks again for your input, this is driving me nuts!
> Jason
>
> On Wed, Jun 9, 2010 at 3:43 PM, Bob Stayton <bobs@sagehill.net> wrote:
>>
>> Actually, I'm surprised the process got as far is it did. The tgroup
>> element in your table lacks a required cols attribute. In the stock
>> template matching on tgroup in fo/table.xsl, it checks for the absence of
>> that attribute and terminates processing with this message:
>>
>> Error: CALS tables must specify the number of columns.
>>
>> So I'm surprised you even got a well-formed FO file to feed to FOP. Try
>> adding the cols attribute and see if that works.
>>
>> Bob Stayton
>> Sagehill Enterprises
>> bobs@sagehill.net
>>
>>
>> ----- Original Message ----- From: "Jason Gilmore" <wj@wjgilmore.com>
>> To: <docbook-apps@lists.oasis-open.org>
>> Sent: Wednesday, June 09, 2010 12:25 PM
>> Subject: [docbook-apps] DocBook to FOP transformation produces "fo:table
>> is
>> missing child elements."
>>
>>
>>> Hi,
>>>
>>> I'm using the following command to convert a Docbook book to PDF:
>>>
>>> xsltproc -o intermediate-fo-file.fo \
>>> --stringparam generate.index 1 \
>>> --stringparam fop1.extensions 1 \
>>> --stringparam double.sided 1 \
>>> --stringparam page.height 9in \
>>> --stringparam page.width 7in \
>>> --stringparam page.margin.inner .75in \
>>> --stringparam page.margin.outer .75in \
>>> --stringparam page.margin.top 1.0in \
>>> --stringparam page.margin.bottom 1.0in \
>>> --stringparam header.rule 0 \
>>> --stringparam footer.rule 0 \
>>> --stringparam body.start.indent 0pc \
>>> fostyles.xsl \
>>> chapters/staging/book.docbook
>>> fop -d -pdf EZF.pdf -fo intermediate-fo-file.fo
>>>
>>> The conversion works perfectly except for when I attempt to insert a
>>> table into one of the documents. Doing so produces the following error
>>> message:
>>>
>>> SEVERE: Exception
>>> javax.xml.transform.TransformerException:
>>> org.apache.fop.fo.ValidationException:
>>>
>>>
>>> file:/home/wjgilmore/books/easyphpwebsiteszendframework2e/intermediate-fo-file.fo:69:984:
>>> Error(69/984): fo:table is missing child elements.
>>> Required Content Model:
>>> (marker*,table-column*,table-header?,table-footer?,table-body+)
>>> at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:217)
>>> ...
>>>
>>> I'm at a loss because the table isn't anything special:
>>>
>>> <table>
>>> <title>Framework Conventions</title>
>>> <tgroup>
>>> <colspec colwidth="1*" />
>>> <colspec colwidth="2*" />
>>> <thead>
>>> <row>
>>> <entry>Convention</entry>
>>> <entry>Description</entry>
>>> </row>
>>> </thead>
>>> <tbody>
>>> <row>
>>> <entry>Configuration Management</entry>
>>> <entry>BLAH</entry>
>>> </row>
>>> </tbody>
>>> </tgroup>
>>> </table>
>>>
>>> Any ideas? Thanks much.
>>>
>>> Jason
>>>
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>>>
>>>
>>>
>>
>>
>
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