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

/
/
mgxi

Test String

Code Generator

Language

Generated Code

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String[] args) { final String regex = "^((?<ShowNameA>.*[^ (_.]) [ (_.]+ (?!720p|1080p|264|265)\n" + "(\n" + "# Shows with preceding Year\n" + "#(?<ShowYearA>\\d{4}) ([ (_.]+ ( \n" + "(?<ShowYearA>(?:19|20)\\d{2}) ([ (_.]+ ( \n" + "(?<SeasonA>\\d{1,2})x(?<EpisodeA>\\d{1,2})\n" + "|(?<SeasonB>[0-3]?[0-9])(?<EpisodeB>\\d{2})\n" + "|S(?<SeasonC>\\d{1,2})E(?<EpisodeC>\\d{1,2}) ) )? \n\n" + "| # Shows without preceding Year\n" + " (?<!\\d{4})(\n" + "S(?<SeasonD>\\d{1,2})E(?<EpisodeD>\\d{1,2})\n" + "|(?<SeasonF>[0-3]?[0-9])(?<EpisodeF>\\d{2})\n" + "|(?<SeasonE>\\d{1,2})x(?<EpisodeE>\\d{1,2}))\n\n" + ")\n" + "|(?<ShowNameB>.+))\n"; final String string = "666.Park.Avenue.S01E04.HDTV.x264-LOL.[VTV].mp4\n" + "Rick and Morty S01E01 - Pilot [1080p] [h.265].mkv\n" + "The.4400.204.mkv\n" + "The Flash (2014) - S01E05 - City of Heroes\n" + "family.guy.1316.hdtv-lol.mp4\n" + "castle.2009.722.hdtv-lol.mp4\n" + "Orange.Is.The.New.Black.S01E01.720p.WEBRip.AAC2.0.H.264-Abjex.mkv\n" + "Top.Gear.2013.20x03.720p.HDTV.x264-FoV.mkv\n" + "archer.2009.S04E13\n" + "louie.506.hdtv-lol.mp4\n" + "Sense8.S01E05.Art.Is.Like.Religion.WEBRip.x264-SNEAkY.mp4\n" + "The.Leftovers.S01E03.HDTV.x264-KILLERS.mp4\n" + "space 1999 1975\n" + "Top.Gear.20x03.720p.HDTV.x264-FoV.mkv\n" + "Space: 1999 (1975)\n" + "Space.1999.1975.S01E01\n" + "marvels.agents.of.s.h.i.e.l.d.s01e13.720p.hdtv.x264-killers.mkv\n" + "Supernatural.S10E12.720p.HDTV.X264-DIMENSION.mkv\n" + "12.Monkeys.S01E09.720p.HDTV.x264-KILLERS.mkv\n" + "space 1999.(1975)\n" + "Space.1999.S01E01\n" + "v.2009.S01E13.the.title.avi\n" + "Teen.wolf.S04E12.HDTV.x264\n" + "The Newsroom 2X04 Conseguenze Indesiderate ITA ENG BDMux -iGM+GiuseppeTnT mkv\n" + "Continuum S04E01 Lost Hours -LGC mkv\n" + "Royal Pains S07E04 HEVC piemonster mkv\n" + "Sense8.S01E05.Art.Is.Like.Religion.WEBRip.x264-SNEAkY.mp4\n" + "Family.Guy.S11.Special-200.Episodes.Later.720p.HDTV.X264-DIMENSION"; final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE | Pattern.COMMENTS | Pattern.CASE_INSENSITIVE); 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