Update Puzzle

Author: Sascha-Block

Coding Puzzle/01_Coding_Puzzle.txt

@@ -1 +1 @@
-01001101 11100111 10000000 11000101 01100111 01100101 00100000 01100100 01101001 01100101 00100000 01001101 01100001 01100011 01101000 01110100 00100000 01101101 01101001 01110100 00100000 01100100 01101001 01110010 00100000 01110011 01100101 01101001 01101110 00101110
+010011011110011110000000110001010110011101100101001000000110010001101001011001010010000001001101011000010110001101101000011101000010000001101101011010010111010000100000011001000110100101110010001000000111001101100101011010010110111000101110

Coding Puzzle/Backup Puzzle/01_Coding_Puzzle.txt

@@ -0,0 +1 @@
+0100110111100111100000001100010101100111011001010010000001100100011010010110010100100000 01001101 01100001 01100011 01101000 01110100 00100000 01101101 01101001 01110100 00100000 01100100 01101001 01110010 00100000 01110011 01100101 01101001 01101110 00101110

Coding Puzzle/main.js

@@ -5,54 +5,93 @@ function handleFileSelect(event) {
     reader.onload = function() {
         const binaryString = reader.result.replace(/\s/g, ''); // entferne alle Leerzeichen
         const asciiString = convertBinaryToAscii(binaryString);
-        const unicodeString = convertBinaryToUnicode(binaryString);
+        const unicodeString = convertBinaryToUnicode(binaryString, 'UTF-8'); // Umwandlung in UTF-8
+        const isoString = convertBinaryToUnicode(binaryString, 'ISO-8859-1'); // Umwandlung in ISO-8859-1
         // Gib die Ergebnisse aus oder tue etwas anderes damit
         console.log('ASCII: ' + asciiString);
         console.log('Unicode: ' + unicodeString);
+        console.log('ISO-8859-1: ' + isoString);
         const output = document.getElementById('output');
-        output.innerHTML = `ASCII: ${asciiString}<br>Unicode: ${unicodeString}`;
+        output.innerHTML = `ASCII: ${asciiString}<br>Unicode: ${unicodeString}<br>ISO-8859-1: ${isoString}`;
     };
 }
 
-function convertBinaryToAscii(binaryString) {
-    let asciiString = '';
-    // Schleife durch die Binärzeichenkette
-    for (let i = 0; i < binaryString.length; i += 8) {
-        // Teile die Binärzeichenkette in 8-Bit-Chunks auf
-        const chunk = binaryString.substr(i, 8);
-        // Wandele jeden 8-Bit-Chunk in ASCII-Code um
-        const charCode = parseInt(chunk, 2);
-        // Konvertiere ASCII-Code in Zeichen und füge es zur Ausgabezeichenkette hinzu
-        asciiString += String.fromCharCode(charCode);
-    }
-    return asciiString;
-}
+document.getElementById('fileInput').addEventListener('change', handleFileSelect);
 
-function convertBinaryToUnicode(binaryString) {
+function convertBinaryToUnicode(binaryString, charset) {
     let unicodeString = '';
+    let byte1, byte2, byte3, byte4, charCode;
+
     // Schleife durch die Binärzeichenkette
     for (let i = 0; i < binaryString.length; i += 8) {
+
         // Wenn das nächste Zeichen ein 16-Bit-Zeichen ist, verarbeite es als solches
         if (binaryString.charAt(i) === '1' && binaryString.charAt(i+1) === '0') {
             const chunk = binaryString.substr(i, 16);
-            const charCode = parseInt(chunk, 2);
-            unicodeString += String.fromCharCode(charCode);
+            charCode = parseInt(chunk, 2);
             i += 8; // überspringe das zweite Byte des 16-Bit-Zeichens
         } else {
             // sonst verarbeite das Zeichen als 8-Bit-Zeichen
             const chunk = binaryString.substr(i, 8);
-            const charCode = parseInt(chunk, 2);
+            charCode = parseInt(chunk, 2);
+        }
+
+        // Konvertiere den CharCode in den Unicode-String, abhängig vom Zeichensatz
+        if (charset === 'UTF-8') {
+            if (charCode < 128) {
+                // 1 Byte
+                unicodeString += String.fromCharCode(charCode);
+            } else if (charCode < 2048) {
+                // 2 Bytes
+                byte1 = 192 + (charCode >> 6);
+                byte2 = 128 + (charCode & 63);
+                unicodeString += String.fromCharCode(byte1, byte2);
+            } else if (charCode < 65536) {
+                // 3 Bytes
+                byte1 = 224 + (charCode >> 12);
+                byte2 = 128 + ((charCode >> 6) & 63);
+                byte3 = 128 + (charCode & 63);
+                unicodeString += String.fromCharCode(byte1, byte2, byte3)} else {
+// 4 Bytes
+                byte1 = 240 + (charCode >> 18);
+                byte2 = 128 + ((charCode >> 12) & 63);
+                byte3 = 128 + ((charCode >> 6) & 63);
+                byte4 = 128 + (charCode & 63);
+                unicodeString += String.fromCharCode(byte1, byte2, byte3, byte4);
+            }
+        } else if (charset === 'ISO-8859-1') {
             unicodeString += String.fromCharCode(charCode);
+        } else {
+// Standardmäßig wird UTF-8 verwendet
+            if (charCode < 128) {
+                unicodeString += String.fromCharCode(charCode);
+            } else if (charCode < 256) {
+                byte1 = 194;
+                byte2 = charCode;
+                unicodeString += String.fromCharCode(byte1, byte2);
+            } else {
+                byte1 = 224 + (charCode >> 12);
+                byte2 = 128 + ((charCode >> 6) & 63);
+                byte3 = 128 + (charCode & 63);
+                unicodeString += String.fromCharCode(byte1, byte2, byte3);
+            }
         }
     }
+    return unicodeString;
+}
+
+function convertBinaryToAscii(binaryString) {
+    let asciiString = '';
 
-    // Wenn das erste Zeichen der Unicode-Zeichenkette das BOM ist, entferne es
-    if (unicodeString.charCodeAt(0) === 65279) {
-        unicodeString = unicodeString.slice(1);
+    // Loop through the binary string in chunks of 8
+    for (let i = 0; i < binaryString.length; i += 8) {
+        const chunk = binaryString.substr(i, 8);
+        const charCode = parseInt(chunk, 2); // Convert the binary chunk to decimal
+
+        // Convert the decimal charCode to ASCII character
+        asciiString += String.fromCharCode(charCode);
     }
 
-    return unicodeString;
+    return asciiString;
 }
 
-const fileInput = document.getElementById('fileInput');
-fileInput.addEventListener('change', handleFileSelect);