Index: vhLib/Macro.inc.rou
===================================================================
diff -u -r2266 -r2557
--- vhLib/Macro.inc.rou	(.../Macro.inc.rou)	(revision 2266)
+++ vhLib/Macro.inc.rou	(.../Macro.inc.rou)	(revision 2557)
@@ -74,6 +74,8 @@
 #define IfLength(%value,%Prefix,%Suffix) $select($length(%value):%Prefix_%value_%Suffix,1:"")
 #define HasLength(%val)					($length(%val)>0)
 #define IsEmptyString(%val)				(%val="")
+#define IsNullOrEmpty(%val)				(%val="")||(%val=$c(0))
+#define IsNotNullOrEmpty(%val)			('((%val="")||(%val=$c(0))))
 
 #define TussenQuotes(%v)   				""""_%v_""""
 #define EnkeleQuotes					""""
@@ -165,3 +167,4 @@
 
 #define IsValidListOfDT(%v)     (($IsObject(%v)) && (%v.%Extends("%Collection.AbstractListOfDT")))
 #define KeyValuePair(%k,%v)		##class(TECH.KeyValuePair).%New(%k,%v)
+