Serializing the doctype (DTD) of an XML document

[Suzy Creamcheese <di...@yahoo.com>]

I am attempting to serialize, from scratch, an XML document with a DTD, that
is currently stored. I am using a DOMWriter and a LocalFileFormatTarget as
an XMLFormatTarget. I have seen examples in Java that use this
OutputFormat::setDoctype method to set the DTD, but I can not figure out an
equivalent or substitute way of doing this using the xerces-c API. I have
searched for a long time, but I seem to not be turning up the right things,
so any help would be much appreciated!

Thanks.
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Re: Serializing the doctype (DTD) of an XML document

[Suzy Creamcheese <di...@yahoo.com>]

I am creating the log from scratch, so I would think that I'd need a method
that does something like this. The DOMDocument interface specifies this
http://xml.apache.org/xerces-c/apiDocs/classDOMDocument.html#z57_8
'getDoctype' method but goes on to say

>> The DOM Level 2 does not support editing the Document Type Declaration.
>> docType cannot be altered in any way, including through the use of
>> methods inherited from the DOMNode interface, such as insertNode or
>> removeNode.

I'd like to be able to just set the doctype of the xml document I'm
synthesizing, I don't need to change it.


David Bertoni wrote:
> 
> Suzy Creamcheese wrote:
>> I have tried using the XMLGrammarPool::serializeGrammars method but it
>> seems
>> to not be relevant to what I want to do, which is essentially to set the
>> doctype. Here's the source of me trying to do the serializeGrammars
>> 
>> The serialize grammars thing doesn't make any sense to me. I tried it
> 
> Serializing the grammar save a binary representation of the internal 
> structures Xerces-C uses to do validation.  You don't want that.
> 
> Using the DOMPrint sample program, I parsed a trivial document with a 
> DOCTYPE declaration and an external subset, and got the DOCTYPE
> declaration 
> in the output.  If you're not getting the same result, I suspect the DOM 
> instance contains no DOCTYPE node, or perhaps you're expecting something
> else.
> 
> Dave
> 
> 

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Re: Serializing the doctype (DTD) of an XML document

[David Bertoni <db...@apache.org>]

Suzy Creamcheese wrote:
> I have tried using the XMLGrammarPool::serializeGrammars method but it seems
> to not be relevant to what I want to do, which is essentially to set the
> doctype. Here's the source of me trying to do the serializeGrammars
> 
> The serialize grammars thing doesn't make any sense to me. I tried it

Serializing the grammar save a binary representation of the internal 
structures Xerces-C uses to do validation.  You don't want that.

Using the DOMPrint sample program, I parsed a trivial document with a 
DOCTYPE declaration and an external subset, and got the DOCTYPE declaration 
in the output.  If you're not getting the same result, I suspect the DOM 
instance contains no DOCTYPE node, or perhaps you're expecting something else.

Dave

Re: Serializing the doctype (DTD) of an XML document

[Suzy Creamcheese <di...@yahoo.com>]

I have tried using the XMLGrammarPool::serializeGrammars method but it seems
to not be relevant to what I want to do, which is essentially to set the
doctype. Here's the source of me trying to do the serializeGrammars

The serialize grammars thing doesn't make any sense to me. I tried it

	DOMImplementationLS * impl = (DOMImplementationLS *)
		DOMImplementationRegistry::getDOMImplementation(XS("[removed]"));

	DOMWriter * writer = impl->createDOMWriter();

	if (writer->canSetFeature(XMLUni::fgDOMWRTFormatPrettyPrint, true))
		writer->setFeature(XMLUni::fgDOMWRTFormatPrettyPrint, true);
  
	if (writer->canSetFeature(XMLUni::fgDOMWRTBOM, true))
		writer->setFeature(XMLUni::fgDOMWRTBOM, true);
	
	std::auto_ptr<MemoryManager> mem_mgr = new MemoryManagerImpl();
	std::auto_ptr<XMLGrammarPool> gp = new XMLGrammarPoolImpl(mem_mgr.get());

	gp->cacheGrammar(m_grammar);

	std::auto_ptr<XMLFormatTarget> ft = new
LocalFileFormatTarget(m_file.c_str());
	std::auto_ptr<BinOutputStream> bp = new BinFileOutputStream((m_file +
"grammar").c_str());
	
	gp->serializeGrammars(bp.get());
	writer->writeNode(ft.get(), *m_doc);

	writer->release();

And the grammar file looks like this http://zxcvbn.t35.com/test.xmlgrammar

Since this appears to be a dead-end, other ideas are appreciated
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