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
Processing...

Test String

Code Generator

Language

Generated Code

import re regex = re.compile(r"\d\d\:\d\d", flags=re.MULTILINE) test_str = ("=! VANHOLLANO DUMAI!\n\n" " !12/5/2018 ! !07:26!\n" "!Jl. Jend. Sudirman No. 183 Dumai \n" "Hp. 08116252883 \n" "IDN !\n" "! !\n" "!vbdumsdr01 ! !Novita !\n" "!Cust. Name..: ! ! !\n" "! !\n" "!---------------------------------!\n" "! 1! !SHOPPING BAG SMALL! ! 0!\n" "! 2! !PALMIER ! ! 7,400!\n" "! 1! !ROTI SISIR KELAPA ! ! 15,800!\n" "! ! ! !\n" "!---------------------------------!\n" "!Subtotal ! ! 23,200!\n" "!Total Discount ! ! 0!\n" "!PB1 ! ! 2,320!\n" "!Total ! ! 25,520!\n\n" "!Cash ! ! 50,500!\n\n" "!Change back (Cash) ! ! 24,980!\n" "!=================================!\n\n" " ! PERIKSA KEMBALI!\n" "!struk belanja dan uang kembalian !\n" " !anda. Komplain hanya bisa!\n" "!dilakukan saat transaksi di kasir!\n\n" " !Customer Service!\n" " !SMS: 08117541984!\n" " !PIN BB: 2B4DCF32!\n\n" " ! FOLLOW US!\n" "!ig : vanhollanobakery_jnpgroup !\n" " !www.jnp-g.com!\n" " !Thank You!") 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