Add a hexjson example for proving epicness.

Author: Kenneth Endfinger

example/hexjson.dart

@@ -0,0 +1,29 @@
+import "package:msgpack/msgpack.dart";
+
+import "dart:io";
+import "dart:convert";
+import "dart:typed_data";
+
+import "package:crypto/crypto.dart";
+
+main() async {
+  var string = await stdin.transform(const Utf8Decoder()).join();
+  var hexBytes = string.split(" ").where((s) => s.trim().isNotEmpty).map((s) {
+    return int.parse(s, radix: 16);
+  }).toList();
+
+  var data = unpack(hexBytes);
+  var encoder = new JsonEncoder((e) {
+    if (e is Float) {
+      return e.value;
+    } else if (e is ByteData) {
+      return CryptoUtils.bytesToBase64(
+        e.buffer.asUint8List(e.offsetInBytes, e.lengthInBytes)
+      );
+    } else {
+      return e;
+    }
+  });
+
+  print(encoder.convert(data));
+}

lib/src/packer.dart

@@ -142,7 +142,7 @@ class MsgPackBuffer implements PackBuffer {
     for (var i = 0; i < bufferCount; i++) {
       Uint8List buff = _buffers[i];
 
-      for (var x = 0; x < buff.lengthInBytes; x++) {
+      for (var x = buff.offsetInBytes; x < buff.lengthInBytes; x++) {
         out[off] = buff[x];
         off++;
       }