Re: [xml] How to reset an HTML push parser context?

[Stefan Behnel <stefan_ml behnel de>]

Daniel Veillard wrote:
> On Tue, Sep 11, 2007 at 01:26:30PM +0200, Stefan Behnel wrote:
> > cdef int _htmlCtxtResetPush(xmlparser.xmlParserCtxt* c_ctxt,
> >                             char* c_data, int buffer_len,
> >                             char* c_encoding, int parse_options) except -1:
> >     # libxml2 crashes if spaceTab is not initialised
> >     if _LIBXML_VERSION_INT < 20629 and c_ctxt.spaceTab is NULL:
> >         c_ctxt.spaceTab = <int*>tree.xmlMalloc(10 * sizeof(int))
> >         if c_ctxt.spaceTab is NULL:
> >             python.PyErr_NoMemory()
> >         c_ctxt.spaceMax = 10
>
>   xmlCtxtResetPush should instead be fixed to cope with that condition.

Mind the "if _LIBXML_VERSION_INT < 20629" :)


> >     # libxml2 lacks an HTML push parser setup function
> >     error = xmlparser.xmlCtxtResetPush(c_ctxt, NULL, 0, NULL, c_encoding)
> >     if error:
> >         return error
> >
> >     # fix libxml2 setup for HTML
> >     c_ctxt.progressive = 1
> >     c_ctxt.html = 1
> >     htmlparser.htmlCtxtUseOptions(c_ctxt, parse_options)
> >
> >     if c_data is not NULL and buffer_len > 0:
> >         return htmlparser.htmlParseChunk(c_ctxt, c_data, buffer_len, 0)
>
>   If you think a real C function htmlCtxtResetPush might be useful, then
> as usual I take patches ! :-)

Hmmm, I might not use an official function myself, as lxml currently wants to
stay backwards compatible with libxml2 2.6.20, but I'll see what I can come up
with.

Stefan