This is not a conformant XML processor per the spec.
There are certain things a processor is required to do with the internal
subset, including parse it and check it for syntax.
>b) DTD-driven
There are a whole range of behaviors. Parsers may, not must, read
external markup declarations and external parsed entities.
>Realm #2: Validation
>
>a) Non-validating
> This type of parser assumes that its input document is both
> well-formed and valid, and is not required to report any errors at
> all.
No such animal is envisioned in the standard. If it doesn't check for
WF problems, it's not an XML processor.
I'll stop here. I suggest you go back and re-work your (potentially helpful)
list based on a re-reading of the specification. -Tim