Re: segfault on xpath queries :P

darryl wrote:
> darryl wrote:
> 
>> darryl wrote:
>>
>>> darryl wrote:
>>>
>>>>
>>>>>>
>>>>>> Ok... well, I ended up using all client-side xslt & xpath for the 
>>>>>> demo I had to do on Saturday. I will try to do some more 
>>>>>> debugging, but since I can't reproduce this behaviour when I'm 
>>>>>> driving libxml directly, I may just start using the libraries 
>>>>>> themselves.
>>>>>> -- 
>>>>>>
>>>>> It's unfortunate but it appears Kimbro is otherwise occupied. I 
>>>>> looked, but dont' know the code well enough to do some serious 
>>>>> debugging.
>>>>> Hopefully you can see something in your debugging attempts.
>>>>>
>>>>> cheers,
>>>>> darryl
>>>>>
>>>> FWIW, i don't know shit about debugging python extension modules in 
>>>> python BUT when i ran python under gdb and ran the script i got:
>>>>  >>> from Weblog import Weblog
>>>>  >>> blog = Weblog('.')
>>>> Registering prefix syncato
>>>>  >>> blog.handleRequest('//character','','','')
>>>>
>>>> Program received signal SIGSEGV, Segmentation fault.
>>>> [Switching to Thread 16384 (LWP 6013)]
>>>> 0x40d49980 in xmlReconciliateNs () from /usr/lib/libxml2.so.2
>>>> (gdb)
>>>>
>>>>
>>>> -darryl
>>>>
>>>
>>> It seems to by crashing on this function call:
>>>
>>> result.reconciliateNs(doc.getDocument())
>>>
>>> It also seems to only affect 501.xml,503.xml and 504.xml
>>>
>>> -darryl
>>>
>>
>> I commented out the above function call and it parses all your 
>> documents fine. I have no idea what affect that will have, but there 
>> you go...
>>
>>
>> -darryl
>>
> Ok this is getting fun now:
> 
>  >import libxml2
>  >doc = libxml2.parseFile('501.xml')
>  >results = doc.xpathEval('//character')
>  >for result in results:
> ...  result.reconciliateNs(doc)
> ...
> Segmentation fault
> 
> So it appears it's not syncato's fault.
> FWIW it's breaking on this:
> 
> <character name="Ferraguto">Ferrag&ugrave;</character>
> 
> It doesn't appear to like the "&ugrave;"
> -darryl

If you escape(?) the <character>Ferrag&ugrave;</character>
to
<character>Ferrag&amp;ugrave;</character>
It seems to work fine. I, of course, have no idea
what you are trying to do....

~darryl
-- 
http://randomthoughts.vandorp.ca/WK/blog


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