Add assignment for ascii_table

Signed-off-by: Severin Kaderli <severin@kaderli.dev>

CMakeLists.txt

@@ -1,3 +1,4 @@
 cmake_minimum_required(VERSION 3.22)
 project(CPP)
-add_subdirectory(hello_world)
+add_subdirectory(hello_world)
+add_subdirectory(ascii_table)

ascii_table/CMakeLists.txt

@@ -0,0 +1,3 @@
+project(ASCIITable)
+set(SOURCES main.cpp)
+add_executable(${PROJECT_NAME} ${SOURCES})

ascii_table/main.cpp

@@ -0,0 +1,119 @@
+/**
+ * This program outputs an ASCII-Table using only std::cout, std::cin and input/output manipulators.
+ */
+
+#include <iostream>
+#include <limits>
+#include <iomanip>
+#include <string>
+
+const int CHAR_WIDTH = 5;
+const int DEC_WIDTH = 4;
+const int HEX_WIDTH = 4;
+const int OCT_WIDTH = 4;
+
+int getIntInRangeFromInput(std::string message, int start, int end) {
+    int value = 0;
+    bool valueIsValid = false;
+    while (!valueIsValid) {
+        std::cout << message;
+        std::cin >> value;
+
+        if (value < start || value > end) {
+            std::cout << "Please enter a valid value." << std::endl;
+            valueIsValid = false;
+        } else {
+            valueIsValid = true;
+        }
+
+        std::cin.clear();
+        std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
+    }
+    return value;
+}
+
+void printTableDivider() {
+    std::cout << std::setfill('-')
+              << "|"
+              << std::setw(CHAR_WIDTH)
+              << ""
+              << std::setw(1)
+              << "|"
+              << std::setw(DEC_WIDTH)
+              << ""
+              << std::setw(1)
+              << "|"
+              << std::setw(HEX_WIDTH)
+              << ""
+              << std::setw(1)
+              << "|"
+              << std::setw(OCT_WIDTH)
+              << ""
+              << std::setw(1)
+              << "|"
+              << std::endl;
+}
+
+void printTableHeader() {
+    std::cout << std::setfill(' ')
+              << " "
+              << std::left
+              << std::setw(CHAR_WIDTH)
+              << "CHAR"
+              << std::setw(1)
+              << " "
+              << std::right
+              << std::setw(DEC_WIDTH)
+              << "DEC"
+              << std::setw(1)
+              << " "
+              << std::left
+              << std::setw(HEX_WIDTH)
+              << "HEX"
+              << std::setw(1)
+              << " "
+              << std::left
+              << std::setw(OCT_WIDTH)
+              << "OCT"
+              << std::endl;
+}
+
+int main(int argc, char *argv[]) {
+    int startValue = getIntInRangeFromInput("Enter ASCII Table Begin [32..255]: ", 32, 255);
+    int endValue = getIntInRangeFromInput("Enter ASCII Table End [110..255]: ", 110, 255);
+
+    printTableHeader();
+    printTableDivider();
+    for (int i = startValue; i <= endValue; i++) {
+        std::cout << std::setfill(' ')
+                << std::setw(1)
+                  << "| '"
+                  << std::left
+                  << std::setw(1)
+                  << (char) i
+                  << std::setw(1)
+                  << "' |"
+                  << std::right
+                  << std::setw(DEC_WIDTH)
+                  << std::dec
+                  << i
+                  << std::setw(1)
+                  << "|0x"
+                  << std::left
+                  << std::setw(HEX_WIDTH-2)
+                  << std::hex
+                  << i
+                  << std::setw(1)
+                  << "|0"
+                  << std::left
+                  << std::setw(OCT_WIDTH-1)
+                  << std::oct
+                  << i
+                  << std::setw(1)
+                  << "|"
+                  << std::endl;
+        printTableDivider();
+    }
+
+    return 0;
+}

hello_world/CMakeLists.txt

@@ -1,3 +1,3 @@
-project(helloworld)
-set(SOURCES main.cpp)
+project(HelloWorld)
+set(SOURCES main.cpp ../ascii_table/main.cpp)
 add_executable(${PROJECT_NAME} ${SOURCES})