Re: [xml] suggestions to workaround a segmentation fault

[Daniel Veillard <veillard redhat com>]

On Thu, Nov 13, 2003 at 12:00:56PM +0100, Petr Pajas wrote:
> Hallo Daniel, All,
>
> First of all, I'd like to thank you for all the new stuff in 2.6.  For
> example, the new xmlReadXY parser API functions and the new syntax for
> parsing options. It simplifies and shortens the code and makes it much
> more readable and more joy to write. Also, I found the new dictionary
> code saves me over 20% of memory for my complex >20Mb XML files and
> the parser seems even faster then before.

  okay, good :-)

> Now, I'm still stuck with a problem related to xmlRemoveID. I really
> need to find a workaround for this to continue my work (there is still
> a lot to do on libxml2 Perl binding:-)). I tried to fix it with a
> patch to libxml2, but the patch was rejected. Ok then, can somebody at

  It wasn't completely rejected... I have applied it locally to my tree
but won't commit until I find a way to fix the xmlReader based validation
problem it is associated with.

> In my application, I don't have a control over what nodes are queried
> and what nodes are removed. This is up to the user. The problem is,
> that once a validating parser hashed an ID, xmlGetID returns the
> pointer to the node even if the node was already unlinked from the
> document and freed, and I can't failed to find a way to check that the
> pointer is still valid.
>
> IMO, the problem is, that current xmlRemoveID is semantically
> equivallent to
>
> int
> xmlRemoveID(xmlDocPtr* doc, xmlDocPtr attr) {
>   return(-1);
> }

  I don't disagree. This will get fixed once I find a solution which 
keep the parsing functionality. The parsing has a slightly higher priority
than tree API, especially since it's the status-quo. But I want both fixed.
I still have a valgrind --gdb-attach=yes python ./reader2.py session
around, but I didn't come yet to a solution to this problem, that's all.

Daniel

-- 
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