parse ingress message

pretty_message.py

#!/usr/bin/env python3

import re
import sys


def main(s):
    s = s.replace('{', ' { ').replace('}', ' } ').replace(',', ' , ')
    tags = re.findall(r'"<.+/>"', s)
    tag_dict = dict()
    for idx, tag in enumerate(tags):
        name = f'tag_{idx}'
        s = s.replace(tag, name)
        tag_dict[name] = tag[1:-1]
    tokens = re.findall(r'\S+', s)
    ind = 0
    for t in tokens:
        if t == '{':
            ind += 1
            sys.stdout.write(f' with\n{"    " * ind}')
        elif t == '}':
            ind -= 1
        elif t == ',':
            sys.stdout.write(f'\n{"    " * ind}')
        elif t == '=':
            sys.stdout.write(f' = ')
        else:
            sys.stdout.write(t)
    print()


if __name__ == '__main__':
    buf = sys.stdin.read()
    main(buf.strip().replace('\\""', '"'))