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"\?ÕÌ_|Š|Ž|À|Á|Â|Ã|Ä|Å|Æ|Ç|È|É|Ê|Ë|Ì|Í|Î|Ï|Ñ|Ò|Ó|Ô|Õ|Ö|Ø|Ù|Ú|Û|Ü|Ý|Þ|ß|ð|ÿ|_Œ‚|__|_", flags=re.IGNORECASE) test_str = ("?ÕÌ_\n" "Š\n" "š\n" "Ž\n" "ž\n" "À\n" "Á\n" "Â\n" "Ã\n" "Ä\n" "Å\n" "Æ\n" "Ç\n" "È\n" "É\n" "Ê\n" "Ë\n" "Ì\n" "Í\n" "Î\n" "Ï\n" "Ñ\n" "Ò\n" "Ó\n" "Ô\n" "Õ\n" "Ö\n" "Ø\n" "Ù\n" "Ú\n" "Û\n" "Ü\n" "Ý\n" "Þ\n" "ß\n" "à\n" "á\n" "â\n" "ã\n" "ä\n" "å\n" "æ\n" "ç\n" "è\n" "é\n" "ê\n" "ë\n" "ì\n" "í\n" "î\n" "ï\n" "ð\n" "ñ\n" "ò\n" "ó\n" "ô\n" "õ\n" "ö\n" "ø\n" "ù\n" "ú\n" "û\n" "ý\n" "þ\n" "ÿ\n" "_Œ‚\n" "__\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