#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Sat Sep 28 11:41:21 2019

@author: Guido Longoni - guidolongoni@gmail.com
"""

#import protocol as p

#testala=p.callPrintImage(imageName='Pippus',printMode='10',fieldContent='qualcosa\rqualcosaltro\rciao')

def subChars(s):
	subDict = {'\x02': " #STX ",
			'\x03': " #ETX ",
			'\x1B': " #ESC ",
			'\r': " #CR ",
			'\f': " #LF ",
			'\t': " #TAB ",
			'\x06': " #ACK ",
			'\x15': " #NACK "
		}
	out = ""
	for c in s:
		if c in subDict.keys():
			out += subDict[c]
		else:
			out += c
	return out


t="\x06\x02OK\x03\r\n\t"

print(subChars(t))