Re: [xslt] document() source

On 16 Oct 2003 at 10:53, Daniel Veillard wrote:

>   Right, it's still basically C code, not python, you have to catch the
> errors, then generate an exception from there might work.

I noticed that if my resolver generates an exception, the built-in resolver tries to handle 
the URL.

I think it would be better if the exception was "passed up" to the original calling function, 
rather than masking it in the resolver and "dropping it".

I'm not sure if this is possible given the current architecture. I'm using xslt.

I think it might be cleaner to say.. the resolver returns a readable() object or a string 
object on success. None when the default resolver should be used, and anything else 
is an exception. And, if the resolver raises an exception, it should be passed up.

currently I think only a readable (file) object is accepted, which is then read() back into 
a DOM object. Interestingly, my resolver has a string and has to use StringIO to make it 
a readable file-like object ;-)

If someone says it's possible to propoge exceptions up, I'll submit a patch. I just 
couldn't tell if libxml could be told "hey, stop, we're dead, don't create a new exception 
there's one pending". I think that'll have to be handled in the external python wrapper, 
not libxslt or libxml C code.

Brad Clements,         (315)268-1000                          (315)268-9812 Fax                   AOL-IM: BKClements

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