rem: xmlNodePtr root_node = NULL;
context: gboolean recuperation_donnees_gnucash ( gchar * filename ){  xmlDocPtr doc;  doc = parse_gnucash_file ( filename );  if ( doc )  {      xmlNodePtr root = xmlDocGetRootElement(doc);      xmlNodePtr root_node = NULL;      if ( root )      {	  root_node = root -> children;	  recuperation_donnees_gnucash_book ( root_node );      }      else      {	  return FALSE;      }  }    return ( TRUE );}