void open_xml_file ( char* filename ) {
xmlNodePtr cur;
char *xmlfile; /* file name of knowledge base */
/* get a fully qualified, absolute path and filename for */
/* reading/writing the XML database file. */
/* What to do on a DOS system? Let's hope that libxml handles it!*/
xmlfile = G_strdup (filename);
/* parse the XML structure; check that we have a valid file */
doc = xmlParseFile (xmlfile);
if ( doc == NULL ) {
xmlFreeDoc(doc);
G_fatal_error ("Could not parse XML structure of knowledge base file.\n");
}
cur = xmlDocGetRootElement(doc);
if (cur == NULL) {
xmlFreeDoc(doc);
G_fatal_error ("Knowledge base is an empty file.\n");
}
if (xmlStrcmp(cur->name, (const xmlChar *) "dst-kb")) {
xmlFreeDoc(doc);
G_fatal_error ("File is not a DST knowledge base.\n");
}
N_SINGLETONS = atoi (xmlGetProp(cur, "N_SINGLETONS"));
N_HYPOTHESES = atoi (xmlGetProp(cur, "N_HYPOTHESES"));
}
static void _get_list(char ***list, int *count)
{
char **a;
int n;
char *buf;
*list = NULL;
*count = 0;
buf = _get_text_2();
for (n = 0; *buf; n++) {
if (n == 0)
a = G_malloc(sizeof(char *));
else
a = G_realloc(a, (n + 1) * sizeof(char *));
a[n] = G_strdup(buf);
buf = _get_text_2();
}
*list = a;
*count = n;
}
