book-site/fix_dunder.py at main · fluentpython/book-site · GitHub

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#!/usr/bin/env python3

import argparse

import os

import re

import shutil

import sys

SCRIPT = sys.argv[0]

RE_DUNDER_CODE = re.compile(r'`__.+?__`')

RE_DUNDER_IDENT = re.compile(r'`(__.+?__)`')

def backup(filename: str) -> None:

msg = ''

copy_name = filename + '.bkp'

try:

shutil.copy2(filename, copy_name)

except FileNotFoundError:

msg = f'File {filename!r} not found.'

if not msg and not os.path.exists(copy_name):

msg = f'Unable to create {copy_name!r}.'

if msg:

print(msg, file=sys.stderr)

sys.exit(1)

def replace(filename: str) -> str:

with open(filename) as fp:

adoc = fp.read()

for dunder_code in sorted(set(RE_DUNDER_CODE.findall(adoc))):

ident = RE_DUNDER_IDENT.match(dunder_code)[1]

adoc = re.sub(dunder_code, f'`+{ident}+`', adoc)

print(ident)

with open(filename, 'w') as fp:

fp.write(adoc)

def main() -> None:

parser = argparse.ArgumentParser(

prog=SCRIPT,

description='Subsitui `__dunder__` por `+__dunder__+`.',

epilog=f'EXEMPLO:\n\t{SCRIPT} cap01.adoc')

parser.add_argument('asciidoc_filename')

args = parser.parse_args()

backup(args.asciidoc_filename)

replace(args.asciidoc_filename)

if __name__ == '__main__':

main()

book-site/fix_dunder.py at main · fluentpython/book-site · GitHub

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