Add calc and license commands

Author: Tech-FZ

CHANGELOG.md

@@ -1,5 +1,10 @@
 # NShell Changelog
 
+## Build 7
+
+- Introducing "calc", a simple calculator integrated into NShell.
+- Also, you can see the license with the "license" command.
+
 ## Build 6
 
 - ErikTheRDev added contrib to list the contributors in NShell.

NShell.depend

@@ -1,11 +1,18 @@
 # depslib dependency file v1.0
-1681493466 source:d:\nicos code\shell\nshell\nshell\main.cpp
+1682249258 source:d:\nicos code\shell\nshell\nshell\main.cpp
 	"help.h"
+	"calc.h"
 	<iostream>
 
 1681493184 d:\nicos code\shell\nshell\nshell\help.h
 
-1681999616 source:d:\nicos code\shell\nshell\nshell\help.cpp
+1682249424 source:d:\nicos code\shell\nshell\nshell\help.cpp
 	"help.h"
 	<iostream>
 
+1682247462 d:\nicos code\shell\nshell\nshell\calc.h
+
+1682249520 source:d:\nicos code\shell\nshell\nshell\calc.cpp
+	"calc.h"
+	<iostream>
+

NShell.layout

@@ -1,15 +1,15 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
 <CodeBlocks_layout_file>
 	<FileVersion major="1" minor="0" />
-	<ActiveTarget name="Debug" />
-	<File name="help.cpp" open="1" top="0" tabpos="2" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<ActiveTarget name="Release" />
+	<File name="main.cpp" open="1" top="1" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="330" topLine="0" />
+			<Cursor1 position="613" topLine="7" />
 		</Cursor>
 	</File>
-	<File name="main.cpp" open="1" top="1" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<File name="help.cpp" open="1" top="0" tabpos="2" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="787" topLine="3" />
+			<Cursor1 position="347" topLine="0" />
 		</Cursor>
 	</File>
 </CodeBlocks_layout_file>

calc.cpp

@@ -0,0 +1,96 @@
+#include "calc.h"
+#include <iostream>
+
+void add(double x, double y)
+{
+    std::cout << x << " + " << y << " = " << x + y << "\n";
+}
+
+void subtract(double x, double y)
+{
+    std::cout << x << " - " << y << " = " << x - y << "\n";
+}
+
+void multiply(double x, double y)
+{
+    std::cout << x << " * " << y << " = " << x * y << "\n";
+}
+
+void divide(double x, double y)
+{
+    if (y != 0) {
+        std::cout << x << " / " << y << " = " << x / y << "\n";
+    }
+
+    else {
+        std::cout << "NShell encountered an error: Cannot divide by zero.\n";
+    }
+}
+
+void calc()
+{
+    std::string confirm;
+
+    while (true) {
+        std::cout << "Please type in the first number: ";
+        double x{ };
+        std::cin >> x;
+
+        std::cout << "Please type in the second number: ";
+        double y{ };
+        std::cin >> y;
+
+        while (true) {
+            std::cout << "Please choose what to do.\n\n";
+            std::cout << "1. Add\n";
+            std::cout << "2. Subtract\n";
+            std::cout << "3. Multiply\n";
+            std::cout << "4. Divide\n";
+            std::cout << "5. Enter other numbers\n";
+            int sel{ };
+            std::cin >> sel;
+
+            switch (sel)
+            {
+            case 1:
+                add(x, y);
+                break;
+
+            case 2:
+                subtract(x, y);
+                break;
+
+            case 3:
+                multiply(x, y);
+                break;
+
+            case 4:
+                divide(x, y);
+                break;
+
+            case 5:
+                break;
+
+            default:
+                std::cout << "NShell encountered an error: Please choose a number between 1 and 5.\n";
+            }
+
+            std::cout << "Do you want to re-run? (Y/N): ";
+            std::cin >> confirm;
+
+            if (confirm == "Y" || confirm == "y" || confirm == "N" || confirm == "n") {
+                break;
+            }
+
+            else {
+                std::cout << "NShell encountered an error: Please type Y or N.\n";
+            }
+        }
+
+        if (confirm == "N" || confirm == "n") {
+            break;
+        }
+
+    }
+
+}

calc.h

@@ -0,0 +1,10 @@
+#ifndef CALC_H_INCLUDED
+#define CALC_H_INCLUDED
+
+void add(double x, double y);
+void subtract(double x, double y);
+void multiply(double x, double y);
+void divide(double x, double y);
+void calc();
+
+#endif // CALC_H_INCLUDED

help.cpp

@@ -6,5 +6,7 @@ void help_generic() {
     std::cout << "version   - Shows the NShell build number.\n";
     std::cout << "c.version - Same as version, but in a single line.\n";
     std::cout << "contrib   - Lists all contributors of NShell.\n";
+    std::cout << "license   - Shows the license of NShell.\n";
+    std::cout << "calc      - A basic calculator included in the NShell.\n";
     std::cout << "exit      - Closes the NShell.\n";
 }

main.cpp

@@ -1,7 +1,31 @@
 #include "help.h"
+#include "calc.h"
 #include <iostream>
 
-int buildNr = 6;
+int buildNr = 7;
+
+const char *mitLicense =
+"MIT License\n\n"
+
+"Copyright (c) 2023 Nicolas Lucien and NShell contributors\n\n"
+
+"Permission is hereby granted, free of charge, to any person obtaining a copy "
+"of this software and associated documentation files (the \"Software\"), to deal "
+"in the Software without restriction, including without limitation the rights "
+"to use, copy, modify, merge, publish, distribute, sublicense, and/or sell "
+"copies of the Software, and to permit persons to whom the Software is "
+"furnished to do so, subject to the following conditions:\n\n"
+
+"The above copyright notice and this permission notice shall be included in all "
+"copies or substantial portions of the Software.\n\n"
+
+"THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR "
+"IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, "
+"FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE "
+"AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER "
+"LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, "
+"OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE "
+"SOFTWARE.\n";
 
 int main()
 {
@@ -30,12 +54,23 @@ int main()
             help_generic();
         }
 
+        else if (command_to_run == "calc") {
+            calc();
+        }
+
+        else if (command_to_run == "license") {
+            std::cout << "NShell\n" << "Build " << buildNr << '\n';
+            std::cout << "\n";
+
+            std::cout << mitLicense;
+        }
+
         else if (command_to_run == "exit") {
             break;
         }
 
         else {
-            std::cout << "Unknown command!\n";
+            std::cout << "NShell encountered an error: Unknown command!\n";
         }
     }