XOM API for Processing XML with Java

[Michael Kay <mike AT saxonica.com>]

On 08/01/2012 01:53, Elliotte Rusty Harold wrote:
> On Sat, Jan 7, 2012 at 2:48 PM, Olivier Lefevre<lefevrol AT yahoo.com>  wrote:
> > I'd like to have location information in the final Document.
> > This is necessary if you are going to do post-processing and
> > maybe throw your own errors. Someone enquired in 2005 about
> > this and was rebuffed. Has anything changed since? How would
> > one go about doing this today? I don't care if that requires
> > me to write a custom NodeFactory.
> What location information do you want? Line number and column number?
> If so that's not really possible. SAX does not reliably provide that
> to XOM.
I can think of good reasons for saying 'no' to this request, but this 
isn't one of them. Saxon has been using the position information 
provided by SAX parsers for years (for reporting the location of errors 
in stylesheets and validation errors in instance documents). It's 
generally very reliable. One can complain that it's not fine-grained 
enough, but it's perfectly adequate for this kind of purpose (you get 
the position of the '>' at the end of the start tag of every element).

Michael Kay
Saxonica