feat: utf8

src/core/streams/buffer.ts

@@ -35,6 +35,9 @@ export class ReadStream {
   ascii(size: number) {
     return this.buffer.toString('ascii', this.increment(size), this.index);
   }
+  utf8(size: number) {
+    return this.buffer.toString('utf8', this.increment(size), this.index);
+  }
 
   int8() {
     return this.buffer.readInt8(this.increment(1));
@@ -94,6 +97,16 @@ export class WriteStream {
     }
     return this;
   }
+  utf8(value: string) {
+    const buffer = Buffer.alloc(Buffer.byteLength(value));
+
+    buffer.write(value, 'utf8');
+    buffer.forEach((value) => {
+      this.array.push(value);
+    });
+
+    return this;
+  }
 
   private uintN(bytes: number, value: number) {
     for (let index = 0; index < bytes; index++) {