Calculate the CRC32 values of Telegram's Type Language constructor IDs

TLCRC.py

#!/usr/bin/env python3
import sys, re
from zlib import crc32
from typing import Tuple
from PyQt5.QtWidgets import QWidget, QLineEdit, QApplication, QLabel, QVBoxLayout, QHBoxLayout

class Calculator(QWidget):

    def __init__(self):
        super().__init__()
        self.InitUI()

    def GenerateID(self, text) -> Tuple[str, int]:
        # Don't jack up the modifiers
        line = re.sub(r"([%!$])[{}()<>]", r"\1", text)
        # Telegram dictates that all parens and brackets and other special stuff removed
        line = re.sub(r"[{}()<>;]|#[a-zA-Z0-9]+", " ", line)
        # spaces must be inserted between square brackets
        line = re.sub(r"\[([^\]]+)\]", r"[ \1 ]", line)
        # Clean spaces up
        line = re.sub(r"[\s]{2,}", " ", line.strip())
        # telegram only has a "string" type even though sometimes they use "bytes"
        # they are serialized the same.
        line = line.replace(":bytes", ":string").replace("?bytes", "?string")

        # tokenize the string and remove flag-only booleans like `is_bot:flags.2?true`
        owo = line.split(" ")
        for i,s in enumerate(owo):
            if s.endswith("?true"):
                del owo[i]
        line = " ".join(owo)

        return line, crc32(line.encode())

    def InitUI(self):
        # Add Layouts                                                                                                   
        self.layout = QVBoxLayout(self)
        self.lineonelayout = QHBoxLayout(self)
        self.linetwolayout = QHBoxLayout(self)
        self.linethreelayout = QHBoxLayout(self)

        # Add Label                                                                                                     
        self.le1 = QLabel(self)
        self.le1.setText("Input: ")
        self.lineonelayout.addWidget(self.le1)

        # Add Input field                                                                                                
        self.textin = QLineEdit(self)
        self.textin.textChanged.connect(self.TextChanged)
        self.lineonelayout.addWidget(self.textin)
        # Add Set the layout for the first line                                                                          
        self.layout.addLayout(self.lineonelayout)

        # Add Label                                                                                                     
        self.le3 = QLabel(self)
        self.le3.setText("Clean: ")
        self.linethreelayout.addWidget(self.le3)

        # Add Input field                                                                                                
        self.texttest = QLineEdit(self)
        self.texttest.setReadOnly(True)
        self.texttest.textChanged.connect(self.TextChanged)
        self.linethreelayout.addWidget(self.texttest)
        # Add Set the layout for the first line                                                                          
        self.layout.addLayout(self.linethreelayout)


        # Add label                                                                                                      
        self.le2 = QLabel(self)
        self.le2.setText("CRC32:")
        self.linetwolayout.addWidget(self.le2)

        self.textout = QLineEdit(self)
        self.textout.setReadOnly(True)
        self.linetwolayout.addWidget(self.textout)
        self.layout.addLayout(self.linetwolayout)

        self.setLayout(self.layout)
        # self.setGeometry(300, 300, 290, 150)
        self.setGeometry(0, 0, 600, 0)
        self.setWindowTitle('Telegram CRC Calculator')
        self.show()

    def TextChanged(self, text):
        line, crc = self.GenerateID(text)
        self.texttest.setText(line)
        self.textout.setText(f"#{crc:x}")


def main() -> int:
    app = QApplication(sys.argv)
    ex = Calculator()
    return app.exec_()

if __name__ == "__main__":
    sys.exit(main())