added no versions of batch debug and showstack toggles

Internal/add lua tests

calc.go

@@ -53,9 +53,9 @@ type Calc struct {
 
 // help for lua functions will be added dynamically
 const Help string = `Available commands:
-batch                toggle batch mode
+batch                toggle batch mode (nobatch turns it off)
-debug                toggle debug output
+debug                toggle debug output (nodebug turns it off)
-show                 show the last 5 items of the stack
+showstack            toggle show last 5 items of the stack (noshowtack turns it off)
 dump                 display the stack contents
 clear                clear the whole stack
 shift                remove the last element of the stack
@@ -94,7 +94,7 @@ Register variables:
 // commands, constants and operators,  defined here to feed completion
 // and our mode switch in Eval() dynamically
 const (
-	Commands  string = `dump reverse debug undebug clear batch shift undo help history manual exit quit swap show vars`
+	Commands  string = `dump reverse clear shift undo help history manual exit quit swap debug undebug nodebug batch nobatch showstack noshowstack vars`
 	Constants string = `Pi Phi Sqrt2 SqrtE SqrtPi SqrtPhi Ln2 Log2E Ln10 Log10E`
 )
 
@@ -290,10 +290,15 @@ func (c *Calc) Eval(line string) {
 				c.stack.Dump()
 			case "debug":
 				c.ToggleDebug()
+			case "nodebug":
+				fallthrough
 			case "undebug":
 				c.debug = false
+				c.stack.debug = false
 			case "batch":
 				c.ToggleBatch()
+			case "nobatch":
+				c.batch = false
 			case "clear":
 				c.stack.Backup()
 				c.stack.Clear()
@@ -316,8 +321,12 @@ func (c *Calc) Eval(line string) {
 				for _, entry := range c.history {
 					fmt.Println(entry)
 				}
+			case "showstack":
+				fallthrough
 			case "show":
 				c.ToggleShow()
+			case "noshowstack":
+				c.showstack = false
 			case "exit":
 				fallthrough
 			case "quit":

main.go

@@ -30,7 +30,7 @@ import (
 	lua "github.com/yuin/gopher-lua"
 )
 
-const VERSION string = "2.0.7"
+const VERSION string = "2.0.8"
 
 const Usage string = `This is rpn, a reverse polish notation calculator cli.
 

rpn.go

@@ -152,14 +152,14 @@ DESCRIPTION
 
     Commands:
 
-        batch                toggle batch mode
+        [no]batch            toggle batch mode (nobatch turns it off)
-        debug                toggle debug output
+        [no]debug            toggle debug output (nodebug turns it off)
+        [no]showstack        show the last 5 items of the stack (noshowtack turns it off)
         dump                 display the stack contents
         clear                clear the whole stack
         shift                remove the last element of the stack
         reverse              reverse the stack elements
         swap                 exchange the last two stack elements
-        show                 show the last 5 items of the stack
         history              display calculation history
         help|?               show this message
         quit|exit|c-d|c-c    exit program

rpn.pod

@@ -159,14 +159,14 @@ Math functions:
 
 Commands:
 
-    batch                toggle batch mode
+    [no]batch            toggle batch mode (nobatch turns it off)
-    debug                toggle debug output
+    [no]debug            toggle debug output (nodebug turns it off)
+    [no]showstack        show the last 5 items of the stack (noshowtack turns it off)
     dump                 display the stack contents
     clear                clear the whole stack
     shift                remove the last element of the stack
     reverse              reverse the stack elements
     swap                 exchange the last two stack elements
-    show                 show the last 5 items of the stack
     history              display calculation history
     help|?               show this message
     quit|exit|c-d|c-c    exit program