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"(?!.*FitGirl.*)(?i)(?<=\s|^|\W)(.*update.*|.*dlc.*|.*expansion.*|.*artwork.*|.*fix.*|.*keygen.*|.*goodies.*|.*guide.*|.*trainer.*)(?=\s|$|\W)\s*$" test_str = ("2015 - Original Edition\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Blood.and.Wine-CODEX [English, Scene, Full ISO] 5 years ago 40.18 GB 453 35 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Blood.and.Wine.MULTi15-PROPHET [Multi-Language, Scene, Full ISO] 5 years ago 65.75 GB 472 47 0\n" "2015 - GOG Edition\n" "[ DL | FL | RP | PL ] » The Witсhеr З: Wild Нunt (v1.21 + 16 DLC + HoS + B&W) FitGirl [Multi-Language, DRM Free] 5 years ago 47.14 GB 771 63 1\n" "2016 - Game of the Year Edition\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Game.of.The.Year.Edition-RELOADED [English, Scene, Full ISO] 4 years ago 40.56 GB 552 50 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Game.of.The.Year.Edition.MULTi16-PROPHET [Multi-Language, Scene, Full ISO] 4 years ago 66.45 GB 513 49 0\n" "2016 - GOG Game of the Year Edition\n" "[ DL | FL | RP | PL ] » The Witcher 3: Wild Hunt GOTY (v1.31/v1.32+All DLCs) [FitGirl Repack] [Multi-Language, P2P] 2 years ago 43.51 GB 1,556 450 17\n" "[ DL | FL | RP | PL ] » The Witcher 3: Wild Hunt - Game of the Year Edition v1.31a (9709) [Multi-Language, DRM Free] 6 months ago 33.50 GB 131 73 0\n" "GameDOX - Artwork\n" "[ DL | FL | RP | PL ] » The Witcher 3 Wild Hunter + Hearts of Stone + Blood and Wine Bonus Content - Artwork [Multi-Language, Digital, GameDOX] 4 years ago 3.58 GB 252 60 0\n" "GameDOX - Downloadable Content\n" "[ LN | RP | PL ] » The Witcher 3: Wild Hunt - Free DLC Prog [GameDOX - External Link] 26 \n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.DLC.Pack.3-BAT [Multi-Language, Scene, GameDOX] 6 years ago 86.68 MB 292 40 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.DLC.Pack.4-BAT [Multi-Language, Scene, GameDOX] 5 years ago 74.02 MB 282 38 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.DLC.Pack.5-BAT [Multi-Language, Scene, GameDOX] 5 years ago 151.69 MB 259 35 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.DLC.Pack-BAT [Multi-Language, Scene, GameDOX] 5 years ago 97.29 MB 224 36 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.DLC.Pack.2-BAT [Multi-Language, Scene, GameDOX] 5 years ago 45.02 MB 230 34 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.DLC.Pack.6-BAT [Multi-Language, Scene, GameDOX] 5 years ago 146.88 MB 216 35 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.DLC.Pack.7-BAT [Multi-Language, Scene, GameDOX] 5 years ago 13.04 MB 275 37 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Hearts.of.Stone.Expansion-GOG - DLC [Multi-Language, GameDOX] 5 years ago 4.25 GB 468 37 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Blood.and.Wine.Expansion-GOG - DLC [Multi-Language, GameDOX] 5 years ago 7.09 GB 498 38 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Hearts.of.Stone.Expansion.Steam-3DM - DLC [Multi-Language, GameDOX] 5 years ago 2.12 GB 208 20 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Blood.and.Wine.Expansion.v1.21.Steam-3DM - DLC [Multi-Language, GameDOX] 4 years ago 8.11 GB 240 20 0\n" "GameDOX - Fixes and Keygens\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Language.Pack.French-GOG - Fix/Keygen [French, GameDOX] 6 years ago 2.49 GB 165 25 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Language.Pack.German-GOG - Fix/Keygen [German, GameDOX] 6 years ago 2.61 GB 160 21 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Language.Pack.Polish-GOG - Fix/Keygen [Polish, GameDOX] 6 years ago 2.42 GB 163 21 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Language.Pack.Russian-GOG - Fix/Keygen [Russian, GameDOX] 6 years ago 2.56 GB 155 23 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Language.Pack.Portuguese-Brazilian-GOG - Fix/Keygen [Portuguese, GameDOX] 6 years ago 2.49 GB 158 20 0\n" "GameDOX - GOG Goodies\n" "[ DL | FL | RP | PL ] » The Witcher 3: Wild Hunt - GOG-Goodies [Multi-Language, GameDOX] 6 months ago 9.79 GB 27 11 0\n" "[ DL | FL | RP | PL | OG ] » The Witcher Goodies Collection - GOG-Goodies [Multi-Language, GameDOX - Internal Link] 3 weeks ago 45.97 GB 32 13 0\n" "GameDOX - Game Guides\n" "[ DL | FL | RP | PL ] » The Witcher 3: Wild Hunt - Prima Official Game Guide [English, PDF, Scan (300 DPI), GameDOX] 2 years ago 822.16 MB 219 66 0\n" "GameDOX - Trainers\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.0-v1.32.Plus.22.Trainer-FLiNG [Multi-Language, GameDOX] 1 month ago 989.12 KB 19 10 0\n" "GameDOX - Updates\n" "[ DL | FL | RP | PL ] » The Witcher 3: Wild Hunt v1.31(a) to v1.32 - Update [Multi-Language, GameDOX] 2 years ago 332.79 MB 158 36 0\n" "[ DL | FL | RP | PL ] » The Witcher 3: Wild Hunt GOTY Update v1.31 (2.0.0.52) GOG [Multi-Language, GameDOX] 4 years ago 274.16 MB 386 47 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Patch.1.30-GOG - Update [Multi-Language, GameDOX] 4 years ago 1.02 GB 350 38 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.24.Update-GOG [Multi-Language, GameDOX] 4 years ago 11.54 MB 431 48 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.Blood.and.Wine.Update.v1.22-CODEX [English, Scene, GameDOX] 4 years ago 1.22 GB 232 23 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.22.Update-GOG [Multi-Language, GameDOX] 4 years ago 2.71 GB 412 34 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.21.Update-GOG [Multi-Language, GameDOX] 5 years ago 2.06 GB 211 25 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.12.1.Update-GOG [Multi-Language, GameDOX] 5 years ago 477.79 MB 328 34 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.11.Update-GOG [Multi-Language, GameDOX] 5 years ago 454.69 MB 393 32 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.10.Update-GOG [Multi-Language, GameDOX] 5 years ago 9.97 GB 528 33 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.08.4.Update-GOG [Multi-Language, GameDOX] 5 years ago 2.05 GB 242 27 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.08.3.Update-GOG [Multi-Language, GameDOX] 5 years ago 2.04 GB 307 30 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.08.2.Update-GOG [Multi-Language, GameDOX] 5 years ago 2.04 GB 293 26 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.08.1.Update-GOG [Multi-Language, GameDOX] 5 years ago 3.79 GB 264 27 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.08.Update-GOG [Multi-Language, GameDOX] 5 years ago 2.05 GB 303 29 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.07.Update-GOG [Multi-Language, GameDOX] 5 years ago 2.04 GB 348 28 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.06.Update-GOG [Multi-Language, GameDOX] 6 years ago 287.67 MB 503 35 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.05.Update-GOG [Multi-Language, GameDOX] 6 years ago 282.60 MB 618 41 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.04.Update-GOG [Multi-Language, GameDOX] 6 years ago 273.99 MB 809 45 0\n" "[ DL | FL | RP | PL ] » The.Witcher.3.Wild.Hunt.v1.03.Update-GOG [Multi-Language, GameDOX] 6 years ago 271.69 MB 428 41 0") 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