#!/usr/bin/env python3

import argparse
import sys

if __name__ == '__main__':
    p = argparse.ArgumentParser(
        description='Automatically unescape text on stdin. This is useful '
                    'for prettifying stack traces in logs that have been '
                    'squashed into a single line.'
    )
    _ = p.parse_args()

    inp = sys.stdin
    for line in inp:
        line = line.replace('\\r', '\r')
        line = line.replace('\\n', '\n')
        line = line.replace('\\t', '\t')
        print(line, end='')