--- trunk/src/selection/SelectionToken.hpp	2009/08/25 14:54:38	1359
+++ trunk/src/selection/SelectionToken.hpp	2009/09/07 16:31:51	1360
@@ -130,7 +130,7 @@ namespace oopse {
     // atom expression operators
     const static int leftparen    = expression |  0;
     const static int rightparen   = expression |  1;
-    const static int to                = expression | 2;
+    const static int to           = expression | 2;
     const static int opAnd        = expression |  3;
     const static int opOr         = expression |  4;
     const static int opNot        = expression |  5;
@@ -138,8 +138,8 @@ namespace oopse {
     const static int asterisk     = expression |  7;
     const static int dot          = expression | 8;
     const static int all          = expression | 9 ; 
-    const static int none      = expression | 10;
-    const static int name      = expression | 11;
+    const static int none         = expression | 10;
+    const static int name         = expression | 11;
     // miguel 2005 01 01
     // these are used to demark the beginning and end of expressions
     // they do not exist in the source code, but are emitted by the
@@ -149,6 +149,9 @@ namespace oopse {
 
     const static int mass         = atomproperty | 0;
     const static int charge       = atomproperty | 1;
+    const static int x            = atomproperty | dynamic | 2;
+    const static int y            = atomproperty | dynamic | 3;
+    const static int z            = atomproperty | dynamic | 4;
         
     const static int opGT         = comparator |  0;
     const static int opGE         = comparator |  1;