Re: [xml] Catalogs, python bindings, rewriteURI, & segfault

[Daniel Veillard <veillard redhat com>]

On Tue, Dec 02, 2003 at 10:37:29AM -0800, John L. Clark wrote:
> [user host ~]$ python
> Python 2.3.2 (#1, Nov 21 2003, 14:36:46)
> [GCC 3.3.2] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
> > > > import libxml2
> > > > cat = libxml2.catalog('catalog')
> > > > result = cat.resolveURI('http://some.web.site/page')
> Segmentation fault
> [user host ~]$

  That segfaults here too.

 
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1074143904 (LWP 16638)]
xmlACatalogResolveURI (catal=0x7, URI=0x81f6d94 "http://some.web.site/page";)
    at catalog.c:2711
2711        if (catal->type == XML_XML_CATALOG_TYPE) {
(gdb) up
#1  0x402fdb6f in libxml_xmlACatalogResolveURI (self=0x0, args=0x81e529c)
    at libxml2-py.c:7958
7958        c_retval = xmlACatalogResolveURI(catal, URI);
(gdb) where
#0  xmlACatalogResolveURI (catal=0x7,
    URI=0x81f6d94 "http://some.web.site/page";) at catalog.c:2711
#1  0x402fdb6f in libxml_xmlACatalogResolveURI (self=0x0, args=0x81e529c)
    at libxml2-py.c:7958

  the way you try to get an handle to a catalog is wrong.
If python had static type I could raise a problem but currently I
don't know. 
  use 
  def loadACatalog(filename):
    """Load the catalog and build the associated data structures.
       This can be either an XML Catalog or an SGML Catalog It
       will recurse in SGML CATALOG entries. On the other hand
       XML Catalogs are not handled recursively. """

> > > import libxml2
> > > cat = libxml2.loadACatalog('catalog')
> > > result = cat.resolveURI('http://some.web.site/page')
> > > print result
file:///some/directory/page
> > >

Daniel

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