> I'm trying to trap all errors produced by Xalan using a problem listener.
> The problem is that this misses errors that get thrown as exceptions
> sometimes.  I _think_ but I'm not sure (this is only from experimentation)
> that this only happens if an extension functions throws the error.
> Generally, these are caught in XalanTransformer and formatted up
> nicely, but
> I really want access to the raw line/column data for syntax highlighting
> purposes, without having to parse strings (which anyway could be
> duplicates
> of what has been passed to my problem listener).
>
> Currently I've taken the approach that it's better that to
> duplicate rather
> than miss the errors, so in my (somewhat customised) copy of
> XalanTransformer, where the exceptions are caught, I punt these on to the
> problem listener.  This does, in general, lead to most errors
> being reported
> twice though.  Can anyone see a way that I can avoid this?
>
There is one _obvious_ way I missed (!)

if (line == && col ==...)

Not the most elegant solution in the book, but it does work :)

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