struct_parse.py

import re

class Struct:
    def __init__(self, name, body):
        self.name = name
        self.references = []
        self.body = body
    def __str__(self) -> str:
        return f'{self.name}: {self.references}'

references = {}

def parse(text):
    global references
    structs = {}
    pattern = r"(?:struct|union)\s+([a-zA-Z0-9_]+)\s*{([^}]*)};"
    matches = re.findall(pattern, text, re.DOTALL)

    for match in matches:
        name = match[0]
        body = match[1]

        s = Struct(name, body)
        fields = body.split(';')
        for f in fields:
            type = f.split(' ')[0].strip()
            s.references.append(type)
            if not type in references:
                references[type] = []
            references[type].append(s.name)
        structs[name] = s
    return structs

with open('structs.h', 'r') as f:
    c = f.read()
    structs = parse(c)
    for key, value in references.items():
        if key in structs:
            print(key)
            for v in value:
                print(f'\t{value}')