Recently, in yet another fit of distraction from my existing projects, I’ve started working on jenx. It’s an XML writer for Java along similiar lines to GenX. At the moment, I’m just at the stage of banning invalid characters that go through it. So it’s extremely fortuitous that I’ve just seen a link to HOWTO Avoid Being Called a Bozo When Producing XML.

I’ve mostly been basing it on the GenX source code and it’s certainly made me realise quite how complicated a job it is to produce well-formed XML reliably. In particular, namespaces add a very large amount of complexity.

This just underlines how important it is to have good libraries to produce this sort of thing.

Hmmm, looking through that HOWTO makes me realise that I need to check that XML::Genx correctly supports astral characters. I’m sure it does, but I’d better double check in a test… For that matter, does Perl support them?

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