[libxml++] [Fwd: DTD validation for libxml++]

[Christophe de VIENNE <cdevienne alphacent com>]

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• From: "Guillaume Arreckx" <bill arreckx acterna com>
• To: cdevienne users sourceforge net
• Subject: DTD validation for libxml++
• Date: Wed, 31 Mar 2004 16:33:06 +0200

Hello Christophe,


I have added some DTD validation to libxml++ which I would like to give back to the libxml++ community.

I have made sure to develop this extra code in the style and spirit of libxml++. As you'll see, it follows the features offered by libxml2 and as such is only a thin wrapper.

The code has been tested and is currently being used succesfully.


To get an easy to use DTD validation, I have created a DtdValidator class (derived from a generic Validator).

This object is in fact a parsed tree of an dtd file. The validator is created like a parser, from a stream or a file, or memory or a subset.
It encapsulates a Dtd object internally.

To valide an xml document, all the user has to do is :

try
{
   xmlpp::DtdValidator validator( dtdFileName );
   xmlpp::Document *pDoc = ...
   validator.validate( pDoc );
}
catch( const xmlpp::parse_error& )
{
   ...
}
catch( ... )
{
}

In my application the Dtd's are extracted from the DOCTYPE information and downloaded from the server. They are then cached locally, so the DTD validation is very quick.


I hope you'll find my contribution useful.

Thank you for a very good library.


Best regards,


Guillaume ARRECKX

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