> I'm looking for information of dia native format. I want to generate
> files in this format from another text files containing an espeification
> of an E-R diagram. I couldn't find the DTD or another information of the
> sintax of the .dia xml files.
Fernando,
get a copy of the dia sources and have a look int the doc folder.
You'll find the DTD's and documentation on custom shapes there.
The best way to gather the necessary information might be to
analyze a sample file created with dia.
Steffen