Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Character class intersection
    [\w&&[^\d]]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
Processing...

Test String

Code Generator

Language

Generated Code

import re regex = re.compile(r"(?:^|(?<=\n))([0-2]\d:[0-5]\d:[0-5]\d[.,]\d{3}) --> ([0-2]\d:[0-5]\d:[0-5]\d[.,]\d{3})(.*?)((?:\d+\n)?(?=[0-2]\d:[0-5]\d:[0-5]\d[.,]\d{3})|$)", flags=re.DOTALL) test_str = ("0\n" "00:00:34,355 --> 00:00:36.635\n" "Бублики! Купите горячии бублики!\n\n" "1\n" "00:00:37.315 --> 00:00:40.315\n" "Ты что сделал, подлец?! Все ботинки мне изгадил!\n\n" "2\n" "00:00:40.995 --> 00:00:42.155\n" "Пошел вон!\n\n\n" "3000\n" "00:00:42.275 --> 00:00:46.875\n" "Ваше благородие, да бросьте вы этого дурака!\n" " Идите до сюда, зараз все исправим.Давайте.\n\n\n" "4\n" "00:00:48.275 --> 00:00:49.715\n" "На, чисть быстро.\n\n" "00:00:49.915 --> 00:00:57.715\n" "Один момент. Такие сапоги перемазали, мама родная!\n" " У меня вакса-то германская, фирма \"Лавалин\".\n\n" "00:00:57.915 --> 00:01:00.755\n" "Не вакса, а масло просто, хоть на хлеб мажь.\n\n" "00:01:01.795 --> 00:01:02.875\n" "Чисть, чисть.\n\n" "00:01:04.195 --> 00:01:05.315\n" "Ой. Ваше благородие\n\n" "00:01:05.875 --> 00:01:06.955\n" "Что с тобой?\n\n" "00:01:07.475 --> 00:01:08.875\n" "Живот прихватило… Не могу..\n\n" "00:01:09.035 --> 00:01:10.355\n" "Ты куда? Иди сюда\n\n" "00:01:10.635 --> 00:01:12.035\n" " По нужде, ваше благородие!\n\n" "00:01:14.915 --> 00:01:18.355\n" "А помнишь погром на Дальницкой? Дракон чертов\n\n" "00:01:30.595 --> 00:01:33.035\n" "Или это я не знаю какая бывает жизнь?\n\n" "00:01:36.915 --> 00:01:39.955\n" " Нас родила мама. Так же как и вас\n\n" "00:01:41.435 --> 00:01:46.195\n" "Эта женщина - наша мама - хотела чтоб мы жили,\n\n" "00:01:46.235 --> 00:01:48.035\n" " а не мучались\n\n" "00:01:48.395 --> 00:01:50.955\n" "Она хотела чтоб мы жили хорошо\n\n" "00:01:51.835 --> 00:01:55.515\n" "и она была права,\n" "как может быть права только наша мама...\n\n" "00:01:57.275 --> 00:02:00.555\n" "А Вы говорите, я не знаю, какая бывает жизнь...\n\n" "00:02:16.755 --> 00:02:18.395\n" "Стой! Стоп!\n") matches = regex.finditer(test_str) for match_num, match in enumerate(matches, start=1): print(f"Match {match_num} was found at {match.start()}-{match.end()}: {match.group()}") for group_num, group in enumerate(match.groups(), start=1): print(f"Group {group_num} found at {match.start(group_num)}-{match.end(group_num)}: {group}")

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Python, please visit: https://docs.python.org/3/library/re.html