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
  • Match everything enclosed
    (?:...)
  • Capture everything enclosed
    (...)
  • 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

r"
"
gimx

Test String

Code Generator

Generated Code

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String[] args) { final String regex = "^\n" + "# get the title of this movie or series\n" + "(?P<title> \n" + " [-\\w'\"]+\n" + " # match separator to later replace into correct title\n" + " (?P<separator> [ .] ) \n" + " # note this *must* be lazy for the engine to work ltr not rtl\n" + " (?: [-\\w'\"]+\\2 )*?\n" + ")\n" + "# start of movie vs serie check\n" + "(?:\n" + " # if this is an episode, lets match the season \n" + " # number one way or another. if not, the year \n" + " # of the movie\n" + " (?:\n" + " # series. can be a lot prettier if we used perl regex...\n" + " # make sure this is not just a number in the title followed by our separator. \n" + " # like, iron man 3 2013 or my.fictional.24.series\n" + " (?! \\d+ \\2 )\n" + " # now try to match the season number\n" + " (?: s (?: eason \\2? )? )?\n" + " (?P<season> \\d\\d? )\n" + " # needed to validate the last token is a dot, or whatever.\n" + " (?: e\\d\\d? (?:-e?\\d\\d?)? | x\\d\\d? )? |\n" + " # this is likely a movie, match the year\n" + " (?P<year> [(\\]]?\\d{4}[)\\]]? ) \n" + " )\n" + " # make sure this ends with the separator, otherwise we \n" + " # might be in the middle of something like \"1080p\"\n" + " (?=\\2) |\n" + " # if we get here, this is likely still a movie.\n" + " # match until one of the keywords\n" + " (?= BOXSET | XVID | DIVX | LIMITED | \n" + " UNRATED | PROPER | DTS | AC3 | AAC | BLU[ -]?RAY | \n" + " HD(?:TV|DVD) | (?:DVD|B[DR]|WEB)RIP | \\d+p | [hx]\\.?264\n" + " )\n" + ")"; final String string = "the.black.adder.3x01.dish.and.dishonesty.dvdrip.xvid-dvdiso.avi\n" + "the.black.adder.3x02.ink.and.incapability.dvdrip.xvid-dvdiso.avi\n" + "the.black.adder.3x03.nob.and.nobility.dvdrip.xvid-dvdiso.avi\n" + "the.black.adder.3x04.sense.and.senility.dvdrip.xvid-dvdiso.avi\n" + "the.black.adder.3x05.amy.and.amiability.dvdrip.xvid-dvdiso.avi\n" + "the.black.adder.3x06.duel.and.duality.dvdrip.xvid-dvdiso.avi\n" + "Game.of.Thrones.S04E08.720p.HDTV.x264-KILLERS\n" + "Futurama.S06.720p.BluRay.X264-REWARD-SiNNERS\n" + "The.Grand.Budapest.Hotel.2014.1080p.BluRay.x264-BLOW\n" + "Another.Earth.2011.LIMITED.720p.BluRay.X264-AMIABLE\n" + "Game.of.Thrones.S04E09.720p.HDTV.x264-KILLERS\n" + "The.Green.Mile.1999.720p.BluRay.x264-HDCLASSiCS\n" + "Cosmos.A.Space.Time.Odyssey.S01E12.720p.HDTV.X264-DIMENSION\n" + "Game.of.Thrones.S04E10.720p.HDTV.x264-KILLERS\n" + "The Road 2009 Bluray DTS 720 p - TRiNiTY\n" + "Dead Poets Society (1989) 720p Blu-ray x264 DTS MSubs [DDR]\n" + "Garden.State.2004.720p.BluRay.X264-AMIABLE\n" + "The.Royal.Tenenbaums.2001.1080p.BluRay.X264-AMIABLE\n" + "Donnie.Darko.2001.1080p.PROPER.BluRay.x264-RRH\n" + "Hot.Fuzz.720p.HDDVD.x264-SEPTiC\n" + "True.Detective.S01E01.720p.HDTV.x264-KILLERS\n" + "Eternal Sunshine of the Spotless Mind 2004 DiVERSiTY\n" + "Non-Stop.2014.720p.BluRay.X264-AMIABLE\n" + "True.Detective.S01E02.720p.HDTV.x264-KILLERS\n" + "Fargo.S01E07.720p.HDTV.X264-DIMENSION\n" + "Silicon.Valley.S01E08.720p.HDTV.x264-KILLERS\n" + "True.Detective.S01E03.720p.HDTV.x264-KILLERS\n" + "Fargo.S01E08.720p.HDTV.X264-DIMENSION\n" + "Suits.S04E01.720p.HDTV.X264-DIMENSION\n" + "True.Detective.S01E04.720p.HDTV.x264-KILLERS\n" + "Fargo.S01E10.720p.HDTV.X264-DIMENSION\n" + "Suits.S04E02.720p.HDTV.X264-DIMENSION\n" + "True.Detective.S01E06.720p.HDTV.x264-2HD\n" + "The.Descendants.2011.720p.BluRay.x264-ALLiANCE\n" + "True.Detective.S01E07.720p.HDTV.x264-KILLERS\n" + "Killing Season 2013 DVDRip x264-NoRBiT\n" + "Game of Thrones S04E10 720p HDTV x264-KILLERS\n" + "Game of Thrones S04E09 720p HDTV x264-KILLERS\n" + "Game of Thrones S04E08 720p HDTV x264-KILLERS\n" + "Game of Thrones S04E07 720p HDTV x264-KILLERS\n" + "Game of Thrones S04E05 720p HDTV x264-KILLERS\n" + "Game of Thrones S04E03 720p HDTV x264-KILLERS\n" + "Game of Thrones S04E04 720p HDTV x264-KILLERS\n" + "Game of Thrones S04E01 720p HDTV x264-KILLERS\n" + "Game of Thrones S04E02 720p HDTV x264-2HD\n" + "Game of Thrones S04E06 720p HDTV x264-DIMENSION\n" + "Game of Thrones S04E10 HDTV x264-KILLERS\n" + "Watch Dogs-RELOADED\n" + "True Blood S07E01 720p HDTV x264-KILLERS\n" + "Non-Stop 2014 720p BluRay X264-AMIABLE\n" + "The Big Bang Theory S07E24 720p HDTV X264-DIMENSION\n" + "Game of Thrones S04E09 HDTV x264-KILLERS\n" + "24 S09E09 720p HDTV X264-DIMENSION\n" + "The Big Bang Theory S07E23 720p HDTV X264-DIMENSION\n" + "Game of Thrones S04E08 HDTV x264-KILLERS\n" + "Suits S04E02 720p HDTV X264-DIMENSION\n" + "Game of Thrones S04E06 INTERNAL 720p HDTV x264-BATV\n" + "The Big Bang Theory S07E22 720p HDTV X264-DIMENSION\n" + "Suits S04E01 720p HDTV X264-DIMENSION\n" + "Watch Dogs Hotfix-RELOADED\n" + "Wolfenstein The New Order-RELOADED\n" + "The Big Bang Theory S07E20 720p HDTV X264-DIMENSION\n" + "The Big Bang Theory S07E21 720p HDTV X264-DIMENSION\n" + "Suits S04E03 720p HDTV X264-DIMENSION\n" + "Californication S07E10 720p HDTV x264-DAA\n" + "True Blood S07E01 HDTV x264-KILLERS\n" + "24 S09E08 720p HDTV X264-DIMENSION\n" + "Game of Thrones S04E07 HDTV x264-KILLERS\n" + "Game of Thrones S04E05 HDTV x264-KILLERS\n" + "Silicon Valley S01E01 720p HDTV x264-KILLERS\n" + "Game of Thrones S04E06 HDTV x264-KILLERS\n" + "24 S09E07 720p HDTV X264-DIMENSION\n" + "Californication S07E08 720p HDTV x264-DAA\n" + "The Big Bang Theory S07E19 720p HDTV X264-DIMENSION\n" + "24 S09E06 720p HDTV X264-DIMENSION\n" + "Californication S07E11 720p HDTV x264-KILLERS\n" + "The Wolf of Wall Street 2013 DVDScr x264-HaM\n" + "Game of Thrones S04E01 HDTV x264-KILLERS\n" + "Game of Thrones S04E10 1080p HDTV x264-BATV\n" + "The Wolf of Wall Street 2013 720p BluRay X264-AMIABLE\n" + "Game of Thrones S04E02 HDTV x264-2HD\n" + "Game of Thrones S04E03 HDTV x264-KILLERS\n" + "The Big Bang Theory S07E24 HDTV x264-LOL\n" + "24 S09E05 720p HDTV X264-DIMENSION\n" + "Southpark Stick Of Truth-RELOADED\n" + "300 Rise Of An Empire 2014 720p BluRay x264-BLOW\n" + "Californication S07E09 INTERNAL 720p HDTV x264-BATV\n" + "The Monuments Men 2014 720p BluRay x264-BLOW\n" + "The Big Bang Theory S07E18 720p HDTV X264-DIMENSION\n" + "Suits S04E01 HDTV x264-LOL\n" + "The Wolf Of Wall Street 2013 720p BRRip x264 AAC-ViSiON\n" + "Her 2013 720p BluRay x264-SPARKS\n" + "The Big Bang Theory S07E17 720p HDTV X264-DIMENSION\n" + "The Big Bang Theory S07E23 HDTV x264-LOL\n" + "Family Guy S12E20 720p HDTV X264-DIMENSION\n" + "The Walking Dead S04E15 720p HDTV x264-2HD\n" + "300 Rise Of An Empire 2014 1080p BluRay x264-BLOW\n" + "24 S09E04 720p HDTV X264-DIMENSION\n" + "The Big Bang Theory S07E16 720p HDTV X264-DIMENSION\n" + "Californication S07E07 720p HDTV x264-DAA\n" + "Suits S04E02 HDTV x264-LOL\n" + "Snowpiercer 2013 BRRip XviD AC3-AQOS\n" + "Fargo S01E09 720p HDTV X264-DIMENSION\n" + "Fargo S01E10 720p HDTV X264-DIMENSION\n" + "Silicon Valley S01E08 720p HDTV x264-KILLERS\n" + "The Walking Dead S04E12 720p HDTV x264-REMARKABLE\n" + "Falling Skies S04E01 720p HDTV x264-KILLERS\n" + "The Big Bang Theory S07E22 HDTV x264-LOL\n" + "The Hobbit The Desolation of Smaug 2013 1080p BluRay x264-SPARKS\n" + "Thor The Dark World 2013 720p HDRip XviD-AQOS\n" + "Silicon Valley S01E02 720p HDTV x264-2HD\n" + "Californication S07E06 720p HDTV x264-DAA\n" + "True Detective S01E01 720p HDTV x264-KILLERS\n" + "The Walking Dead S04E13 720p HDTV x264-2HD\n" + "Robocop 2014 720p BluRay x264-SPARKS\n" + "The Walking Dead S04E16 PROPER 720p HDTV x264-KILLERS\n" + "The Big Bang Theory S07E21 HDTV x264-LOL\n" + "The Grand Budapest Hotel 2014 720p BluRay x264-BLOW\n" + "24 S09E03 720p HDTV X264-DIMENSION\n" + "True Detective S01E03 720p HDTV x264-KILLERS\n" + "Game of Thrones S04E04 REPACK HDTV x264-KILLERS\n" + "24 S09E01 720p HDTV X264-DIMENSION\n" + "24 S09E02 720p HDTV X264-DIMENSION\n" + "Silicon Valley S01E03 720p HDTV x264-KILLERS\n" + "The Big Bang Theory S07E15 720p HDTV X264-DIMENSION\n" + "Dallas Buyers Club 2013 720p BRRip x264 AAC-ViSiON\n" + "The Walking Dead S04E11 720p HDTV x264-2HD\n" + "How I Met Your Mother S09E23-E24 720p HDTV x264-REMARKABLE\n" + "Suits S03E16 720p HDTV x264-KILLERS\n" + "GRID Autosport-RELOADED\n" + "Silicon Valley S01E05 720p HDTV x264-KILLERS\n" + "Vikings S02E10 720p HDTV x264-2HD\n" + "Silicon Valley S01E06 720p HDTV x264-2HD\n" + "300 Rise Of An Empire 2014 720p BRRiP XViD AC3-LEGi0N\n" + "Californication S07E05 720p HDTV x264-2HD\n" + "Silicon Valley S01E04 720p HDTV x264-KILLERS\n" + "The Wolf Of Wall Street 2013 720p BRRip x264 AAC-ViSiON\n" + "Snowpiercer 2013 BRRip XviD AC3-AQOS\n" + "Dallas Buyers Club 2013 720p BRRip x264 AAC-ViSiON\n" + "300 Rise Of An Empire 2014 720p BRRiP XViD AC3-LEGi0N\n" + "American Hustle 2013 720p BRRip x264 AAC-ViSiON\n" + "The Grand Budapest Hotel 2014 720p BRRiP XViD AC3-LEGi0N\n" + "This Is The End 2013 720p BRRip x264 AAC-ViSiON\n" + "Non-Stop 2014 720p BRRiP XViD AC3-LEGi0N\n" + "A Million Ways To Die In The West 2014 720p New Webrip x264 AC3 TiTAN\n" + "Captain Phillips 2013 720p BRRip x264 AAC-ViSiON\n" + "The Lego Movie 2014 720p HDRip XviD-AQOS\n" + "Now You See Me 2013 EXTENDED 720p BDRip x264 AAC-ViSiON\n" + "Bad Neighbours 2014 720p WEBRIP x264 AC3-EVE\n" + "Gravity 2013 720p WEBRiP XViD AC3-LEGi0N\n" + "The Raid 2 2014 720p BRRiP XViD AC3-LEGi0N\n" + "Under The Skin 2013 720p HDRIP x264 AC3 TiTAN\n" + "The Hobbit The Desolation Of Smaug 2013 720p BRRip x264 AAC-ViSiON\n" + "The Wolverine 2013 EXTENDED 720p BRRip x264 AAC-ViSiON\n" + "Pompeii 2014 720p BRRiP XViD AC3-LEGi0N\n" + "12 Years A Slave 2013 720p BDRip XviD AC3-ViSiON\n" + "Frozen 2013 720p BRRip x264 AAC-ViSiON\n" + "Man Of Steel 2013 720p BRRip x264 AAC-ViSiON\n" + "Elysium 2013 720p WEBRiP XViD AC3-LEGi0N\n" + "The Monuments Men 2014 720p BRRiP XViD AC3-LEGi0N\n" + "Snowpiercer 2013 720p BDRip x264 AAC-ViSiON\n" + "The Hunger Games Catching Fire 2013 IMAX EDITION 720p BRRip XviD AC3-ViSiON\n" + "Robocop 2014 720p BRRiP XViD AC3-LEGi0N\n" + "Jack Ryan Shadow Recruit 2014 720p BRRiP XViD AC3-LEGi0N\n" + "Bad Words 2013 720p BRRiP XViD AC3-LEGi0N\n" + "The Double 2014 720p HDRip x264 AAC-FooKaS\n" + "Prisoners 2013 720p WEB-DL x264 AAC-ViSiON\n" + "The Secret Life Of Walter Mitty 2013 720p BRRip x264 AAC-ViSiON\n" + "Riddick 2013 UNRATED DC 720p WEB-DL XviD AC3-ELiTE\n" + "47 Ronin 2013 720p WEB-DL XviD AC3-ELiTE\n" + "Enders Game 2013 720p BRRiP XViD AC3-LEGi0N\n" + "Oblivion 2013 720p BRRip x264 AAC-ViSiON\n" + "That Awkward Moment 2014 720p BRRiP XViD AC3-LEGi0N\n" + "The Raid 2 2014 BDRip x264-GECKOS\n" + "47 Ronin 2013 720p BRRip x264 AAC-ViSiON\n" + "The Grand Budapest Hotel 2014 720p WEBRIP x264 AC3-EVE\n" + "Her 2013 720p BRRiP XViD AC3-LEGi0N\n" + "Don Jon 2013 720p BRRip x264 AAC-ViSiON\n" + "3 Days to Kill 2014 EXTENDED 720p BRRiP XViD AC3-LEGi0N\n" + "The Lego Movie PROPER 720p HDRIP x264 AC3 TiTAN\n" + "Thor The Dark World 2013 720p WEBRiP XViD AC3-LEGi0N\n" + "White House Down 2013 720p BRRip x264 AAC-ViSiON\n" + "The Hunger Games Catching Fire 2013 IMAX EDITION 720p BRRip x264 AAC-ViSiON\n" + "The Lego Movie 2014 720p BRRiP XViD AC3-LEGi0N\n" + "Bad Grandpa 2013 UNRATED 720p WEB-DL XviD AC3-ELiTE\n" + "Non-Stop 2014 BRRip XviD AC3-SANTi\n" + "Escape Plan 2013 720p BRRip x264 AAC-ViSiON\n" + "Despicable Me 2 2013 720p BRRip x264 AAC-ViSiON\n" + "Delivery Man 2013 720p BRRiP XViD AC3-LEGi0N\n" + "Blended 2014 720p WEBRIP x264 AC3-EVE\n" + "RoboCop 2014 720p WEBRIP x264 AC3-EVE\n" + "The Great Gatsby 2013 720p BRRip x264 AAC-ViSiON\n" + "Fast And Furious 6 2013 720p WEBRiP XViD AC3-LEGi0N\n" + "A Million Ways to Die in the West 2014 HC 720p WEBRIP x264 AC3-MiLLENiUM\n" + "Red 2 2013 720p BRRip x264 AAC-ViSiON\n" + "The Lone Ranger 2013 720p BDRip x264 AAC-ViSiON\n" + "World War Z 2013 UNRATED 720p BRRiP XViD AC3-LEGi0N\n" + "Enemy 2013 LIMITED 720p BRRiP XViD AC3-LEGi0N\n" + "Vampire Academy 2014 720p BRRiP XViD AC3-LEGi0N\n" + "The Legend Of Hercules 2014 720p BRRip x264 AAC-ViSiON\n" + "Non-Stop 2014 BDRip X264-AMIABLE\n" + "Afflicted 2013 LIMITED 720p BRRiP XViD AC3-LEGi0N\n" + "Street Fighter Assassin's Fist 2014 720p HDRip x264 AC3 TiTAN\n" + "Veronica Mars 2014 HDRip AC3 XviD-EVO\n" + "2 Guns 2013 720p BRRip x264 AAC-ViSiON\n" + "Anchorman 2 The Legend Continues 2013 UNRATED 720p BRRip x264 AAC-ViSiON\n" + "Lone Survivor 2013 720p WEBRiP XVID AC3-MAJESTIC\n" + "Kick-Ass 2 2013 720p BRRip x264 AAC-ViSiON\n" + "Jack Ryan Shadow Recruit 2014 HDRip XviD AC3-EVO\n" + "Rush 2013 720p BRRip x264 AAC-ViSiON (Happy New Year from ViSiON!)\n" + "Calvary 2014 720p BRRiP XViD AC3-LEGi0N\n" + "The Hunger Games Catching Fire 2013 BRRip XviD AC3-SANTi\n" + "Jack Ryan Shadow Recruit 2014 720p WEBRIP x264 AC3-EVE\n" + "Thor The Dark World 2013 720p BRRip x264 AAC-ViSiON\n" + "Bad Neighbours 2014 WEBRip NEW SOURCE Xvid Mp3 MiLLENiUM\n" + "Prisoners 2013 720p BRRiP x264 AC3-LEGi0N\n" + "Elysium 2013 720p BRRip x264 AAC-ViSiON\n" + "Pacific Rim 2013 720p BRRip x264 AAC-ViSiON\n" + "Saving Mr Banks 2013 720p BRRip x264 AAC-ViSiON\n" + "The Monuments Men 2014 BDRip x264-COCAIN\n" + "Joe 2013 1080p WEBRIP x264 AC3-EVE\n" + "I Frankenstein 2014 720p BRRiP XViD AC3-LEGi0N\n" + "The Secret Life Of Walter Mitty 2013 720p WEB-DL XviD AC3-ELiTE\n" + "The Monuments Men 2014 BRRip XviD AC3-AQOS\n" + "About Time 2013 720p BDRip XviD AC3-ELiTE\n" + "Frozen 2013 720p BRRiP XViD AC3-LEGi0N\n" + "Enemy 2013 720p WEBRiP XViD AC3-LEGi0N\n" + "I Frankenstein 2014 BRRip XviD AC3-SANTi\n" + "Out Of The Furnace 2013 720p BRRip x264 AAC-ViSiON\n" + "Walk of Shame 2014 LIMITED 720p BRRiP XViD AC3-LEGi0N\n" + "Iron Man 3 2013 720p BDRip x264 AAC-ViSiON\n" + "The Monuments Men 2014 720p BDRIP x264 AC3-EVE\n" + "Anchorman 2 The Legend Continues 2013 720p HDRIP x264 AC3 TiTAN\n" + "Captain Phillips 2013 720p BRRiP XViD AC3-LEGi0N\n" + "Jack Ryan Shadow Recruit 2014 BRRip XviD AC3-SANTi\n" + "Cloudy With A Chance Of Meatballs 2 2013 720p BRRip x264 AAC-ViSiON\n" + "my.fictional.24.series.s01e02.720p-firas "; final Pattern pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.COMMENTS); final Matcher matcher = pattern.matcher(string); while (matcher.find()) { System.out.println("Full match: " + matcher.group(0)); for (int i = 1; i <= matcher.groupCount(); i++) { System.out.println("Group " + i + ": " + matcher.group(i)); } } } }

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 Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html