On Tue, April 18, 2006 8:59, Boris Kolpackov said:

Hi James,

writes:

...

I may just be showing my ignorance here, but how do people feel about Xerces? Especially given that it's written in C++.

Here is what I know about Xerces-C++ from experience:

- Out of all mentioned parsers (expat, libxml2, tinyxml) it is the only validating parser that supports both DTD and XML Schema. I think libxml2 supports only DTD and the other two do not support any validation.

- Fairly complete support for advanced XML features, e.g., namespaces, entity references, CDATA, etc.

- Extensive support for character encodings.

- Supports DOM and SAX in one package.

- C++ API. It is sometimes quite ugly, though.

- Fairly portable.

...

(Note: I'm trying to install Xerces now on Solaris, and it isn't easy.)

I didn't find the installation any more difficult than say... boost ;-).

hth, -boris

-- Boris Kolpackov Code Synthesis Tools CC http://www.codesynthesis.com Open Source Cross-Platform C++ XML Data Binding

From my experience working with Xerces 2.6 and 2.7 I can complain about extremely bad documentation. Sometimes I had to debug though xerces source code to understand how it works. In some cases where documentation stated that the particular DOM Interface is implemented NotImplementedException was thrown. The most disturbing thing is that you can not rely on documentation and in most cases documentation even does not state if this particular interface might throw an exception which can lead to unpleasent result at runtime...

You also need to write a wrapper class around Xerces XMLCh type and static XMLString member functions, because these functions are not exception safe in terms of RAII, e.g. //pre initialization here XMLCh* xmlStr=XMLString::transcode("some string"); //some code //some exception XMLString::release(xmlStr); //never reached => memory leak All document nodes were belonging to a document and you had to explicitly transform the ownership or release them which is also more or less C style programming... I always had a feeling to program C with C++ features... My suggestion would be if you can select something else choose another library... At some of the boost pages I found a reference to XiMoL project... This project seems to be a nice alternative to Xerces C. I do not know which features do you need... With Kind Regards, Ovanes Markarian

loufoque writes:

Boris Kolpackov wrote :

...

Here is what I know about Xerces-C++ from experience:

- Out of all mentioned parsers (expat, libxml2, tinyxml) it is the only validating parser that supports both DTD and XML Schema. I think libxml2 supports only DTD and the other two do not support any validation.

libxml2 supports DTD, XMLSchema and RelaxNG.

From xmlsoft.org:

"A partial implementation of XML Schemas Part 1: Structure is being worked on but it would be far too early to make any conformance statement about it at the moment." I think it is great that they are adding support for XML Schema, but there is a big difference between "being worked on" and "supports". -boris