Feature/commands (#18)

* re-organized command structure * added 'dup' command
2025-12-17 04:21:01 +01:00 · 2023-11-12 20:29:10 +01:00
parent 0782b0920b
commit 2f56761bf1
6 changed files with 310 additions and 82 deletions
--- a/rpn.go
+++ b/rpn.go
@@ -160,6 +160,7 @@ DESCRIPTION
        shift                remove the last element of the stack
        reverse              reverse the stack elements
        swap                 exchange the last two stack elements
+        dup                  duplicate last stack item
        history              display calculation history
        help|?               show this message
        quit|exit|c-d|c-c    exit program