Dan,

Remove the cast in the parse() method. MemBufInputSource is-a
InputSource. Use this code instead:

MemBufInputSource* memIS = new MemBufInputSource((const XMLByte
*)someXML, strlen(someXML), "test", false);

mParser->parse(*memIS);


Cheers,


-Ozgur Sahoglu


-----Original Message-----
From: Dan Arcari [mailto:[EMAIL PROTECTED] 
Sent: Monday, May 12, 2008 4:42 PM
To: [email protected]
Subject: Re: Using MemBufInputSource with DOM parser

Thanks Ozgur.

I have attempted to do the following:

static const char* someXML = "<?xml version="\1.0\" encoding=\"ascii\"
?><message>Hello World</message>";
XMLCh* testData = XMLString::transcode(someXML);
XMLByte* pXMLByte = reinterpret_cast<XMLByte*>(testData);

MemBufInputSource* memIS = new MemBufInputSource(pXMLByte,
strlen(someXML),
"test", false);

mParser->parse((const DOMInputSource&)memIS);

---
//mParser is created as:
mParser =
((DOMImplementationLS&)impl)->createDOMBuilder(DOMImplementationLS::MODE
_SYNCHRONOUS,
0);


Using this code, I receive a segmentation fault in ReaderMgr where it
attempts to call src.makeStream().

Do I need to prepare my memIS object some other way so that it will
properly
provide a BinInputStream object to the functions farther down the line?

Thanks,

Dan

On Mon, May 12, 2008 at 12:48 PM, Sahoglu, Ozgur
<[EMAIL PROTECTED]>
wrote:

>
> Hi Dan,
>
> Parsing a file is no different than parsing a memory buffer (or any
> other input source). They all use BinInputStream internally if you
look
> at the Xerces-C++ implementation. All you need to do is create the
> MemBufInputSource and pass it to parser's parse() method (see the API
> doc
>
http://xerces.apache.org/xerces-c/apiDocs/classAbstractDOMParser.html#b6
>
fbd6cdf84cce77db1c780017d107dd<http://xerces.apache.org/xerces-c/apiDocs
/classAbstractDOMParser.html#b6fbd6cdf84cce77db1c780017d107dd>
> ).
>
> DOM parser's parse() method is overloaded to accept a system id (a
file
> path or URL) or an InputSource, which can be a LocalFileInputSource, a
> URLInputSource, a StdInInputSource, a Wrapper4DOMInputSource, or a
> MemBufInputSource (see
> http://xerces.apache.org/xerces-c/apiDocs/classInputSource.html).
>
> Cheers,
>
>
> -Ozgur Sahoglu
>
> -----Original Message-----
> From: Dan Arcari [mailto:[EMAIL PROTECTED]
> Sent: Monday, May 12, 2008 11:05 AM
> To: [email protected]
> Subject: Using MemBufInputSource with DOM parser
>
> Hello,
>
> We have a library written on top of Xerces-c which uses DOM parsing of
> file-based XML. We would like to be able to send a MemBufInputSource
(or
> derivation) via our library to xerces so we can parse XML which does
not
> reside in a file. Is this possible, and could anyone share some
examples
> or
> advice on how to go about this?
>
> Thanks
>

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