Added a config display if set is entered w/o parameters

This also necessitated updates to help and the User Guide.

mdbook/src/Chapters/CalculatorCommands.md

@@ -14,7 +14,7 @@ These commands, like the others you'll read about later, are executed by typing
 |f <br> flip | **FLIP SIGN**<br>Flip the sign on the top stack item (`line1`). This is effectively multiplying `line1` by -1|
 |c <br> clear| **CLEAR**<br>Clear the current stack and the screen.  Memory data is retained and you can undo the clear with the undo `u` command|
 |cl <br> clean| **CLEAN SCREEN**<br>Clear the current screen, but keep the stack.  After cleaning, the stack will be displayed at the top of the screen.  Used to remove the clutter|
-|d<br>d [#]<br>d [#-#]| **DELETE**<br>If `d` is given without any parameters, it will delete `line1`.  If a line number is given after the `d`, that line number will be deleted.  A range can be given as well, such as `d 1-3` and RPNCalc will delete those lines and everything inbetween|
+|d<br>d [#]<br>d [#-#]| **DELETE**<br>If `d` is given without any parameters, it will delete `line1`.  If a line number is given after the `d`, that line number will be deleted.  A range can be given as well, such as `d 1-3` and RPNCalc will delete those lines and everything in between.  `del` can also be used|
 |s [#] \[#] <br> swap [#] \[#]| **SWAP LINES**<br>Without an argument, swap the top two stack items (`line1 & line2`).  You can swap any two line numbers in your stack by providing the two line numbers|
 |%| **PERCENT**<br>Assumes `line1` contains a percent.  This converts that into a number by simply dividing that value by 100.  For example, if you want to take 50.123% of a number, you could just enter in `50.123 [ENTER] % [ENTER] *`|
 |sqrt| **SQUARE ROOT**<br>Perform a [square root](https://en.wikipedia.org/wiki/Square_root) of the top stack item (`line1`)|

mdbook/src/Chapters/OperationalCommands.md

@@ -14,6 +14,7 @@ Operational commands are commands that do not directly impact your stack numbers
 |import `FILENAME`|With `import` RPNCalc will replace the current stack with one loaded from a file.  The file format is simple, just one number per line.  Do not include any comments or alphanumeric/special characters.  Just one number per line with the last number being `line1` - just like the display in RPNCalc|
 |ss|Swap the current stack with the secondary. The primary and secondary stacks are described in the Stacks section.  Executing `ss` again will swap them back.  The secondary stack it just a place to do a bit of other work then you can swap back.  They are in no way connected.  The secondary stack is also saved upon exit|
 |debug|Toggle debug mode which will display additional information on what's happening internally in the program.  Same as the `-D` command line switch.  Probably not the useful for a normal user|
+|set|Display the current values of the configurable persistent settings|
 |set width `NUM`| Sets the width of the program.  The default is 80 characters. If you are using a small display, and the calculator wraps, this can be used to make the width smaller (or larger).  Please note that there is a minimum width that must be used.  At the time of this writing, it's 46 characters.  This setting is persistent across RPNCalc executions|
 |set memslots `NUM`| Set the number of memory slots available to RPNCalc to `NUM`.  The default is 10 slots, numbed 0 through 9.  If you need more, or less, it can be changed with this command.  The setting is persistent across RPNCalc executions.  `set mem` or `set memoryslots` may also be used.  See the memory commands chapter for more information|
 |set align `l\|d\|r`| Set the alignment of the stack when it's displayed.  The default is `l` or left alignment.  The numbers are aligned to the left.  `r` or right alignment has the numbers aligned to the right.  `d` or decimal aligns all of the decimal points together in a column.  This setting is persistent across RPNCalc executions. `set alignment` may also be used| 

pom.xml

@@ -3,7 +3,7 @@
 
 	<groupId>org.fross</groupId>
 	<artifactId>rpncalc</artifactId>
-	<version>4.6.7</version>
+	<version>4.6.8</version>
 	<packaging>jar</packaging>
 
 	<name>rpncalc</name>

snap/snapcraft.yaml

@@ -1,5 +1,5 @@
 name: rpncalc
-version: '4.6.7'
+version: '4.6.8'
 summary: The command line Reverse Polish Notation (RPN) calculator
 description: |
   RPNCalc is an easy to use command line based Reverse Polish

src/main/java/org/fross/rpncalc/CommandParser.java

@@ -74,7 +74,6 @@ public static void Parse(StackObj calcStack, StackObj calcStack2, String cmdInpu
 		// Delete
 		case "del":
 		case "d":
-		case "drop":
 			StackCommands.cmdDelete(calcStack, cmdInputParam);
 			break;
 

src/main/java/org/fross/rpncalc/Help.java

@@ -127,6 +127,7 @@ public static void Display() {
 		Output.printColorln(Ansi.Color.WHITE, " ss                Swap primary and secondary stack");
 		Output.printColorln(Ansi.Color.WHITE, " load NAME         Load (or create if needed) a named stack");
 		Output.printColorln(Ansi.Color.WHITE, " import FILE       Replace current stack with file contents (one number per line)");
+		Output.printColorln(Ansi.Color.WHITE, " set               Display current values of configurations you can set");
 		Output.printColorln(Ansi.Color.WHITE, " set align l|d|r   Set alignment of the stack display to 'l'eft, 'd'ecimal, or 'r'ight");
 		Output.printColorln(Ansi.Color.WHITE, " set width num     Set the width of the display to num");
 		Output.printColorln(Ansi.Color.WHITE, " set memslots num  Set the number of memory slots");

src/main/java/org/fross/rpncalc/StackOperations.java

@@ -146,6 +146,16 @@ public static void cmdSet(String arg) {
 		String command = "";
 		String value = "";
 
+		// If there is not a parameter provided, display the current values and return
+		if (arg.isBlank()) {
+			Output.printColorln(Ansi.Color.YELLOW, "\n-Configuration Values" + "-".repeat(Main.configProgramWidth - 21));
+			Output.printColorln(Ansi.Color.CYAN, "Width:    " + Main.configProgramWidth + "\t|  Sets the program width in characters");
+			Output.printColorln(Ansi.Color.CYAN, "Align:    " + Main.configAlignment + "\t|  Sets alignment of the stack display");
+			Output.printColorln(Ansi.Color.CYAN, "MemSlots: " + Main.configMemorySlots + "\t|  Sets number of available memory slots");
+			Output.printColorln(Ansi.Color.YELLOW, "-".repeat(Main.configProgramWidth) + "\n");
+			return;
+		}
+
 		// Parse the provided argument into a command and value
 		try {
 			argParse = arg.split(" ");
@@ -159,7 +169,7 @@ public static void cmdSet(String arg) {
 			case "align":
 			case "alignment":
 				if (value.toLowerCase().compareTo("l") != 0 && value.toLowerCase().compareTo("d") != 0 && value.toLowerCase().compareTo("r") != 0) {
-					Output.printColorln(Ansi.Color.RED, "Alignment can only be 'l'eft, 'd'ecimal, or 'r'ight. See help for mem command usage");
+					Output.printColorln(Ansi.Color.RED, "Alignment can only be 'l'eft, 'd'ecimal, or 'r'ight. See help for set command usage");
 					return;
 				}
 				Main.configAlignment = value;
@@ -191,7 +201,7 @@ public static void cmdSet(String arg) {
 			}
 
 		} catch (Exception ex) {
-			Output.printColorln(Ansi.Color.RED, "Error parsing set command: 'set " + arg + "'  See help for mem command usage");
+			Output.printColorln(Ansi.Color.RED, "Error parsing set command: 'set " + arg + "'  See help for set command usage");
 			return;
 		}
 	}