[xml] patch: xmlTextReaderGetAttribute and xmlns support

[Rob Richards <rrichards ctindustries net>]

Patch adds support to retrieve value of namesapce delcarations in 
xmlTextReaderGetAttribute

Any objections to adding xmlns support to xmlTextReaderGetAttributeNs 
and xmlTextReaderMoveToAttributeNs?

Lastly is there any standard used on code indenting? I've noticed that 
sometimes spaces are used and further indenting is done with tabs.
I've just been using tabs.

Rob

Index: xmlreader.c
===================================================================
RCS file: /cvs/gnome/gnome-xml/xmlreader.c,v
retrieving revision 1.124
diff -c -r1.124 xmlreader.c
*** xmlreader.c 8 Aug 2005 07:45:23 -0000       1.124
--- xmlreader.c 16 Aug 2005 11:09:17 -0000
***************
*** 2309,2320 ****
        return(NULL);
  
      localname = xmlSplitQName2(name, &prefix);
!     if (localname == NULL)
!       return(xmlGetNoNsProp(reader->node, name));
!     
!     ns = xmlSearchNs(reader->node->doc, reader->node, prefix);
!     if (ns != NULL)
!         ret = xmlGetNsProp(reader->node, localname, ns->href);
  
      xmlFree(localname);
      if (prefix != NULL)
--- 2309,2348 ----
        return(NULL);
  
      localname = xmlSplitQName2(name, &prefix);
!     if (localname == NULL) {
!               /*
!                * Namespace default decl
!                */
!               if (xmlStrEqual(name, BAD_CAST "xmlns")) {
!                       ns = reader->node->nsDef;
!                       while (ns != NULL) {
!                               if (ns->prefix == NULL) {
!                                       return(xmlStrdup(ns->href));
!                               }
!                               ns = ns->next;
!                       }
!                       return NULL;
!               }
!               return(xmlGetNoNsProp(reader->node, name));
!       }
! 
!     /*
!      * Namespace default decl
!      */
!     if (xmlStrEqual(prefix, BAD_CAST "xmlns")) {
!               ns = reader->node->nsDef;
!               while (ns != NULL) {
!                       if ((ns->prefix != NULL) && (xmlStrEqual(ns->prefix, localname))) {
!                               ret = xmlStrdup(ns->href);
!                               break;
!                       }
!                       ns = ns->next;
!               }
!     } else {
!               ns = xmlSearchNs(reader->node->doc, reader->node, prefix);
!               if (ns != NULL)
!                       ret = xmlGetNsProp(reader->node, localname, ns->href);
!       }
  
      xmlFree(localname);
      if (prefix != NULL)