slugify

#!/usr/bin/env python3
import argparse
import re
import sys

# https://en.wikipedia.org/wiki/Romanization_of_Russian
# System: Passport (2013), ICAO
TRANSLIT_RU_EN = str.maketrans({
    'а': 'a',
    'б': 'b',
    'в': 'v',
    'г': 'g',
    'д': 'd',
    'е': 'e',
    'ё': 'e',
    'ж': 'zh',
    'з': 'z',
    'и': 'i',
    'й': 'i',
    'к': 'k',
    'л': 'l',
    'м': 'm',
    'н': 'n',
    'о': 'o',
    'п': 'p',
    'р': 'r',
    'с': 's',
    'т': 't',
    'у': 'u',
    'ф': 'f',
    'х': 'kh',
    'ц': 'ts',
    'ч': 'ch',
    'ш': 'sh',
    'щ': 'shch',
    'ъ': 'ie',
    'ы': 'y',
    'ь': None,
    'ю': 'iu',
    'я': 'ua',
})


def get_names(args):
    if args.words:
        return args.words
    return [line.rstrip() for line in sys.stdin]


def main():
    parser = argparse.ArgumentParser()
    parser.add_argument("-t", "--translit", action='store_true', help="Transliterate Russian")
    parser.add_argument("words", nargs="*", help="Words to slugify")
    args = parser.parse_args()
    pattern = r"[^\w\d]+"
    for name in get_names(args):
        slug = re.sub(pattern, "-", name)
        slug = re.sub(pattern + "$", "", slug)
        slug = re.sub("^" + pattern, "", slug)
        slug = slug.lower()
        if args.translit:
            slug = slug.translate(TRANSLIT_RU_EN)
        print(slug)


if __name__ == "__main__":
    main()