feat: split into code for buffer and vm

internals/buffer/buffer.go

@@ -0,0 +1,30 @@
+package buffer
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"strings"
+)
+
+type InputBuffer struct {
+	Buffer string
+	Reader *bufio.Reader
+}
+
+func NewInputBuffer() *InputBuffer {
+	return &InputBuffer{
+		Buffer: "",
+		Reader: bufio.NewReader(os.Stdin),
+	}
+}
+
+func (inputBuffer *InputBuffer) ReadConsole() {
+	line, err := inputBuffer.Reader.ReadString('\n')
+	if err != nil && err != io.EOF {
+		fmt.Println("Error reading input", err)
+		os.Exit(1)
+	}
+	inputBuffer.Buffer = strings.TrimSpace(line)
+}