Re: [xml] [PATCH] XPath parsing QName conformance and memory leak fixes

[Daniel Veillard <veillard redhat com>]

On Sat, Aug 30, 2008 at 04:49:17PM +0100, Martin (gzlist) wrote:
> The XPath parsing code, as exposed through xmlXPathCtxtCompile etc,
> has a couple of issues related to QName validity. Firstly,
> xmlXPathParseQName accepts ":name" as a synonym for "name" rather than
> treating it as an error. Secondly, xmlXPathCompFunctionCall has two
> early-return-on-error points that can leak copied strings. I believe
> these can be safely fixed (attached,  fix_qname_and_leak.patch) though
> there might be code somewhere that erroneously uses a leading colon
> and would need changing to function properly.
> 
> In the process of investigating and writing this patch, also fixed the
> build when DEBUG_STEP is defined, and used an evil pointer cast to
> silence an unrelated warning in schematron (attached,
> compiling_xpath_debug.patch), hacked in memory debug *Loc versions of
> the four str(n)cpy functions in xmlstring (useful but not attached,
> was hacky and changed public interfaces), and wrote various bits of
> test code, the neatest of which works as a unit test (attached,
> test_qname_and_leak.patch) - that's in python just as it was easy, not
> because it's python specific.

  Very cool, I think I understood all the changes and they look fine to
me. I just changed the python regression test to avoid any output by
default.
  Applied and commited,

  thanks a lot !

Daniel

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