+#include "xmalloc.h"
+
+# define MY_ENCODING "ISO-8859-1"
+
+# define CHECK(ptr,msg) assert (ptr && msg)
+
+# define NODE_NAME(n, m) (0 == xmlStrcmp (n->name, (const xmlChar*) #m))
+# define CHECK_NAME(n, m) assert (0 == xmlStrcmp (n->name, (const xmlChar*) #m))
+
+# define NEW(T) (T*)xmalloc(sizeof (T))
+