added the str.atPut primitive

t/call-5001.err

@@ -1,3 +1,11 @@
 ## the expression begins with a dictionary expression. 
 ## it is not a function name and can'be be invoked.
 #{100:1, 200: 3}; ##ERROR: syntax error - invalid callable
+
+---
+
+try {
+	throw "excetion message"
+} catch (e a) { ##ERROR: syntax error - not proper exception variable
+	printf "EXCEPTION - %s\n" e
+}