[XXE] Converting DocBook to HTML

[Hussein Shafie]

maxwell at umiacs.umd.edu wrote:
> I've attached the file in question (there are no graphics files), also our
> munged fontconfig.properties file.

Problem solved. Explanations follow:

* Your document was not really a DocBook one so I had to replace

<!DOCTYPE book PUBLIC
"-//Normal Walsh//DTD XWEB V1.0 in DocBook XML V4.2//EN"
"http://docbook.sourceforge.net/release/litprog/current/dtd/ldocbook.dtd";>

by an equivalent DocBook DOCTYPE to have a styled view, a "Convert
Document" menu, etc.



* Your document contains one ``alien'' element:

      <src:fragment id="CaseSlot">&lt;InflectionalSlot&gt;
      &lt;InflectionalAffix form="<phrase lang="ben">-????????????</phrase>"
      gloss="-NOM"&gt; &lt;MorphosyntacticFeatures&gt;
      &lt;FeatureStructure&gt; &lt;FeatureValues&gt; &lt;Value name="CASE"
      feature="nominative"/&gt; &lt;Value name="NUMBER"
feature="plural"/&gt;
      &lt;Value name="ANIMATE" feature="+"/&gt; &lt;/Features&gt;
      &lt;/FeatureStructure&gt; &lt;/MorphosyntacticFeatures&gt;
      &lt;/InflectionalAffix&gt; &lt;/InflectionalSlot&gt;</src:fragment>

Now I remember that Saxon always crashes when the prefix of a namespace
is not declared (brutal, isn't it?).

So, after adding xmlns:src="http:///www.acme.com/ns"; to the
<src:fragment> element, that is,

<src:fragment xmlns:src="http:///www.acme.com/ns"; id="CaseSlot">...

I managed to convert this document to HTML (though this takes a while; I
don't understand why).



* I doubt that namespace prefix "src" is properly declared in
ldocbook.dtd. Please, check this because the clean way to solve your
problem is to declare an xmlns:src attribute with the proper fixed value
for element  src:fragment in ldocbook.dtd.



* Shouldn't XXE warn you when you have an element for which a namespace
prefix has not been declared? Sure... when XXE runs in namespace aware
mode.

Please keep in mind that when the document being edited is conforming to
a DTD, XXE is *not* namespace aware. (Fortunately, all this will be
things of the past with the advent of DocBook 5, which is RELAX NG based.)





>>PS: Are you a long time user of QTJava.zip (QuickTime)?
>>Or, on the contrary, is it a recent addition to your
>>working environment?
> 
> I have no clue, this is on my office PC, and I don't have the authority to
> modify stuff here (including editing the classpath).  And I don't yet have
> the Professional Edition of XMLmind installed on my home PC, so I can't
> test this there.  The fact that QTJava is ahead of the standard Java in
> the classpath is bothersome, because I'm now wondering how many other
> problems that will cause...
> 

QTJava.zip was not the culprit.