Further followup:

(1) expat has a bunch of handlers for obscure situations that I'm not
sure if we should care about. Conceptually speaking the api could be
extended later to support them. Perhaps the "parser create" operation
could check for certain verb names to determine if callbacks should be
registered. This is all for later, and might require some C support
because of limitations of J's callback mechanism.

(2) According to expat documentation, we're supposed to get two
callbacks for an empty tag -- which I believe <br /> would be an
example of. (We're supposed to get both a start and end callback).
This isn't happening, but this is a C language implementation issue,
and not a J language implementation issue.

What a mess...

-- 
Raul
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