Index: trunk/Ohana/src/opihi/include/shell.h
===================================================================
--- trunk/Ohana/src/opihi/include/shell.h	(revision 39457)
+++ trunk/Ohana/src/opihi/include/shell.h	(revision 40656)
@@ -8,4 +8,5 @@
 
 # define ISVAR(a) (isalnum (a) || (a == ':') || (a == '_'))
+# define ISREF(a) (isalnum (a) || (a == '_'))
 # define ISWORD(a,q) ((q) ? (a != '"') : (isalnum(a) || (a == '/') || (a == '.') || (a == '_') || (a == '-')))
 # define ISNUM(c) (isdigit(c) || (c == '-') || (c == '.'))
@@ -146,4 +147,5 @@
 char         *lastword              	PROTO((char *, char *));
 char         *thisvar               	PROTO((char *));
+char         *thisref               	PROTO((char *));
 char         *aftervar              	PROTO((char *));
 char         *lastvar               	PROTO((char *, char *));