Re: [css2xslfo-support] producing empty FO output

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Wow! thanks Werner, Brad, and Sergey. You are all very responsive.

I'm getting a little further now after adding:

visits
{
   region: body;
}

unfortunately, I get a type of null pointer exception. Do I need to define 
some other specifier since this is a pure XML document without the XHTML 
trimmings?

Thanks,
-- Aaron

Here's the stack trace:

null
be.re.css.CSSToXSLFOException
        at be.re.css.CSSToXSLFO.convert(CSSToXSLFO.java:138)
        at be.re.css.CSSToXSLFO.main(CSSToXSLFO.java:267)
Caused by:
java.util.EmptyStackException
        at 
com.sun.org.apache.xml.internal.utils.IntStack.peek(IntStack.java:125)
        at 
com.sun.org.apache.xml.internal.dtm.ref.sax2dtm.SAX2DTM2.endElement(SAX2DTM2.java:2239)
        at 
com.sun.org.apache.xalan.internal.xsltc.dom.SAXImpl.endElement(SAXImpl.java:936)
        at 
com.sun.org.apache.xalan.internal.xsltc.trax.TransformerHandlerImpl.endElement(TransformerHandlerImpl.java:273)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at be.re.css.PageSetupFilter.endElement(PageSetupFilter.java:315)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at 
be.re.css.BlockContainerFilter.endElement(BlockContainerFilter.java:72)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at be.re.css.FootnoteFilter.endElement(FootnoteFilter.java:68)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at be.re.css.LinkFilter.endElement(LinkFilter.java:51)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at 
be.re.css.WidthAndMarginsFilter.endElement(WidthAndMarginsFilter.java:159)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at be.re.css.CenterFilter.endElement(CenterFilter.java:94)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at 
be.re.css.NormalizeTableFilter.endElement(NormalizeTableFilter.java:190)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at 
be.re.css.XHTMLAttributeTranslationFilter.endElement(XHTMLAttributeTranslationFilter.java:272)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at be.re.css.ForeignFilter.endElement(ForeignFilter.java:48)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at 
be.re.css.DisplayNonePropagator.endElement(DisplayNonePropagator.java:45)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at be.re.css.WrapperFilter.endElement(WrapperFilter.java:45)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at be.re.css.FOMarkerFilter.endElement(FOMarkerFilter.java:98)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at be.re.css.ProjectorFilter.endElement(ProjectorFilter.java:439)
        at 
org.xml.sax.helpers.XMLFilterImpl.endElement(XMLFilterImpl.java:546)
        at 
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:633)
        at 
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanEndElement(XMLNSDocumentScannerImpl.java:719)
        at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1685)
        at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368)
        at 
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834)
        at 
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
        at 
com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)
        at 
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1242)
        at 
be.re.xml.sax.ProtectEventHandlerFilter.parse(ProtectEventHandlerFilter.java:56)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at be.re.xml.sax.FilterOfFilters.parse(FilterOfFilters.java:165)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
        at be.re.xml.sax.FilterOfFilters.parse(FilterOfFilters.java:165)
        at be.re.css.CSSToXSLFOFilter.parse(CSSToXSLFOFilter.java:324)
        at be.re.css.CSSToXSLFO.convert(CSSToXSLFO.java:133)
        at be.re.css.CSSToXSLFO.main(CSSToXSLFO.java:267)

Werner Donné <wer...@re...> wrote on 16-10-2008 03:39:48 AM:

> Hi Aaron,
> 
> If you add the following rule for the "visits" element it should work:
> 
> visits
> {
>    region: body;
> }
> 
> The notion of having regions stems from the fact that an XSL-FO document
> is made up of regions and page sequences. For each new page sequence
> I have to regenerate stuff starting from the element that represents the
> body region.
> 
> I understand you are annoyed by that. It is, however, not so easy to
> choose a default body region. At first sight the document element would
> be a good candidate, but some XML languages define some preliminary meta
> information. As a consequence, a lower element may have to be the body
> region. I could scan the CSS files to check if some element already has
> been assigned as the body region and use the document element if there
> isn't one. However, it is not certain the rule would apply to any 
> element
> at all and moreover, the "style" attribute could have been used inside 
> the
> document to assign the body region. In order to solve this I would have
> to examine the complete document first. This is not possible, because 
> the
> tool works as a streaming filter. That is to reduce memory consumption
> for very large documents.
> 
> Best regards,
> 
> Werner.
> 
> On 15 Oct 2008, at 20:48, aro...@cl... wrote:
> 
> >
> > Hi,
> >
> > I'm just getting started trying to use css2xslfo. At the moment, I 
> > just want to see it produce an FO document but I'm getting a file 
> > with zero bytes.
> >
> > I tried the following:
> >
> > java -Dbe.re.stack -jar css2xslfo1_6.jar visitDump.xml -fo 
> > visitDump.fo
> >
> > I don't get any warnings of any sort. It chugs away but then creates 
> > an empty "visitDump.fo" file.
> >
> > The xml source file is not xhtml, just pure xml. It looks something 
> > like so:
> >
> > <?xml version="1.0" encoding="UTF-8"?>
> > <?xml-stylesheet href="visitDump.css" type="text/css" media="all"?>
> > <visits>
> >         <protocol>
> >                 <protocol_descriptor>Hello</protocol_descriptor>
> >                 ...
> >         </protocol>
> >         ...
> > </visits>
> >
> > Ultimately I'd like to connect it to FOP to produce a PDF but right 
> > now, I'm not able to get it to do the FO part yet. Any ideas on what 
> > I might be missing?
> >
> > Thanks in advance,
> > -- 
> > Aaron 
> > 
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> --
> Werner Donné  --  Re                                     http://www.
> pincette.biz
> Engelbeekstraat 8 
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> 
> 
> 
> 
> 