--- freem/src/operator.c	2025/04/10 01:24:38	1.7
+++ freem/src/operator.c	2025/05/05 22:52:32	1.9
@@ -1,5 +1,5 @@
 /*
- *   $Id: operator.c,v 1.7 2025/04/10 01:24:38 snw Exp $
+ *   $Id: operator.c,v 1.9 2025/05/05 22:52:32 snw Exp $
  *    operators pattern-match, divide, multiply, add, power
  *
  *  
@@ -24,6 +24,12 @@
  *   along with FreeM.  If not, see <https://www.gnu.org/licenses/>.
  *
  *   $Log: operator.c,v $
+ *   Revision 1.9  2025/05/05 22:52:32  snw
+ *   Make E notation error message more appropriate
+ *
+ *   Revision 1.8  2025/05/05 19:34:46  snw
+ *   Fix E notation code to disallow more than one minus sign after the E
+ *
  *   Revision 1.7  2025/04/10 01:24:38  snw
  *   Remove C++ style comments
  *
@@ -1975,6 +1981,10 @@ int numlit (char *str)
 	}
 	if (expflg) {
 	    if (ch == MINUS) {
+                if (str[i + 1] == '-') {
+                    merr_raise (INVEXPR);
+                    return (0);
+                }
 		expflg = (-expflg);
 		continue;
 	    }