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]
  • 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
No Match

/
/
gm

Test String

Code Generator

Language

Generated Code

# coding=utf8 # the above tag defines encoding for this document and is for Python 2.x compatibility import re regex = r".+\/+(\d+).+?psd" test_str = ("!Gotovoe Anya/а шарик летит/700.psd\n" "!Gotovoe Anya/​С 5 до 7. Время любовников (Сурдоперевод)/4478751.psd\n" "!Gotovoe Anya/#вмаскешоу/8115515.psd\n" "!Gotovoe Anya/#Гуднайтшоу/3627751.psd\n" "!Gotovoe Anya/#Гуднайтшоу/3627751_RU.psd\n" "!Gotovoe Anya/#ЛавСтайл/3086771-lavstayl.psd\n" "!Gotovoe Anya/#яздесь/4572015.psd\n" "!Gotovoe Anya/#ЯЗДЕСЬ/6925565.psd\n" "!Gotovoe Anya/(Не)идеальная женщина/10010315.psd\n" "!Gotovoe Anya/... а шарик летит/700.psd\n" "!Gotovoe Anya/@Жених/5851405.psd\n" "!Gotovoe Anya/«V» значит Вендетта/2457401.psd\n" "!Gotovoe Anya/«Весёлые» каникулы/1341041.psd\n" "!Gotovoe Anya/«Вне игры. Пролог». Документальный фильм/4460771.psd\n" "!Gotovoe Anya/«Кедр» пронзает небо/1193411.psd\n" "!Gotovoe Anya/«Мерседес» уходит от погони/15380.psd\n" "!Gotovoe Anya/«Посейдон» спешит на помощь/1684351.psd\n" "!Gotovoe Anya/«Старый» Новый год/2454371-staryy-novyy-god.psd\n" "!Gotovoe Anya/«Сто грамм» для храбрости/1363311.psd\n" "!Gotovoe Anya/«Тигры» на льду/2312_RU.psd\n" "!Gotovoe Anya/0 в пользу Танечки/2391.psd\n" "!Gotovoe Anya/1/2930981.psd\n" "!Gotovoe Anya/1+1 (Сурдоперевод)/2681801.psd\n" "!Gotovoe Anya/1+1 дома 8 марта/2474581.psd\n" "!Gotovoe Anya/1+1 дома 8 марта/2474581-1-1-doma-8-marta-2.psd\n" "!Gotovoe Anya/1+1/2214021.psd\n" "!Gotovoe Anya/2 Brothers On The 4Th Floor - караоке/10307755.psd\n" "!Gotovoe Anya/2 дня/95161.psd") matches = re.finditer(regex, test_str, re.MULTILINE) for matchNum, match in enumerate(matches, start=1): print ("Match {matchNum} was found at {start}-{end}: {match}".format(matchNum = matchNum, start = match.start(), end = match.end(), match = match.group())) for groupNum in range(0, len(match.groups())): groupNum = groupNum + 1 print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = match.start(groupNum), end = match.end(groupNum), group = match.group(groupNum))) # Note: for Python 2.7 compatibility, use ur"" to prefix the regex and u"" to prefix the test string and substitution.

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