Regular Expressions 101

Save & Manage Regex

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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
Processing...

Test String

Code Generator

Language

Generated Code

import re regex = re.compile(r"\b[A-Z][a-z]+\b\s+\b[A-Z][a-z]+\b", flags=re.MULTILINE) test_str = ("54. Mikhail Stepanovich ZUSKO\n" "(Михаил Степанович ЗУСЬКО)\n" "Function: Russian military leader – Lieutenant- General\n" "Chief of staff of the “West” grouping\n" "Former Commander of the 58th Combined Arms Army of the Southern Military District\n" "DOB: 24.5.1972\n" "POB: Vetly, Volyn region, former Ukrainian SSR (now Ukraine)\n" "Nationality: Russian\n" "Gender: male\n" "Associated entities: Ministry of Defence of the Russian Federation\n\n" "55. Mikhail Yuryevich TEPLINSKIY\n" "(Михаил Юрьевич ТЕПЛИНСКИЙ) \n" "Function: Russian military leader – Colonel-General\n" "Commander of Airborne Forces of the Armed Forces of the Russian Federation\n" "DOB: 9.1.1969\n" "POB: Mospino, Donetsk oblast, former Ukrainian SSR (now Ukraine)\n" "Nationality: Russian\n" "Gender: male\n" "Associated entities: Ministry of Defence of the Russian Federation\n\n" "56. Nikolay Mikhailovich PARSHIN\n" "(Николай Михайлович ПАРШИН) \n" "Function: Russian military leader – Lieutenant- General\n" "Head of the Main Rocket and Artillery Directorate of the Ministry of Defense of the Russian Federation\n" "DOB: 20.12.1962\n" "POB: The village of Mordovskoye- Kolomasovo, former Mordovian ASSR (now Russian Federation)\n" "Nationality: Russian\n" "Gender: male\n" "Associated entities: Ministry of Defence of the Russian Federation\n\n" "57. Oleg Yurievich TSOKOV\n" "(Олег Юрьевич ЦОКОВ) \n" "Function: Russian military leader – Major-General\n" "Commander of the 144th Motor Rifle Division of the 20th Combined Arms Army of the Armed Forces of the Russian Federation\n" "DOB: 23.9.1971\n" "POB: former USSR (now Russian Federation)\n" "Nationality: Russian\n" "Gender: male\n" "Associated entities: Ministry of Defence of the Russian Federation\n\n" "58. Ramil Rakhmatulovich IBATULLIN\n" "(Рамиль Рахматуллович ИБАТУЛЛИН)\n" "Function: Russian military leader – Major-General\n" "Commander of the 90th Guards Tank Division\n" "DOB: 22.10.1976\n" "POB: Bagishevo, Apastovsky District, Tatarstan, former USSR (now Russian Federation)\n" "Nationality: Russian\n" "Gender: male\n" "Associated entities: Ministry of Defence of the Russian Federation\n\n" "59. Sergey Viktorovich KARAKAEV\n" "(Сергей Викторович КАРАКАЕВ) \n" "Function: Russian military leader – Colonel-General\n" "Commander of the Strategic Missile Forces\n" "DOB: 4.6.1961\n" "POB: The village of Ivano-Slyusarevka, Krasnodar Territory, former USSR (now Russian Federation)\n" "Nationality: Russian\n" "Gender: male\n" "Associated entities: Ministry of Defence of the Russian Federation\n\n" "SHEN, Weisheng, Zhejiang, China; (a.k.a \"Shen shen\") DOB 01 Nov 1957; POB Haimen, China; nationality China; Additional Sanctions Information - Subject to Secondary Sanctions; Gender Male; Passport G23381737 (China) issued 13 Jun 2007 expires 12 Jun 2017; National ID No. 330103195711011317 (China) (individual) [NPWMD] [IFSR] (Linked To: ZHEJIANG QINGJI IND. CO., LTD).\n\n" "WEI, Zunyi (a.k.a. WEI, Zun Yi; a.k.a. \"WEI, David\"), Beijing, China; DOB 20 Dec 1975; POB Shandong, China; nationality China; Additional Sanctions Information - Subject to Secondary Sanctions; Gender Male; Passport EE1650028 (China) issued 28 Aug 2018 expires 27 Aug 2028; National ID No. 370922197512201811 (China) (individual) [NPWMD] [IFSR] (Linked To: HONG KONG KE.DO INTERNATIONAL TRADE CO., LIMITED).\n\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