[tex4ht] unbalanced parentheses

[Karl Berry]

Hi William,

    A recent item at arxiv.org -- 1108.5305 -- fails to run through

Is tex4ht-able source available somewhere?  Url?

It's not the business of the typesetter to detect math errors, so it
really shouldn't complain.  Unbalanced parentheses are not always an
error, for sure.  Just a simple interval open at one end and closed at
the other ... (1,2]

Thanks,
karl