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

/
/
img

Test String

Code Generator

Language

Generated Code

use strict; my $str = '22. Non Puoi Sempre Dire Quello Kent Ti Pare.avi 6x13 - Una festa spettacolare.mkv After earth.avi Capitan America Il Primo Vendicatore 480p.mkv Dylan Dog 2010 Ac3.avi FUMETTOLOGY - 11 - PUNTATA SPECIALE.by.IperB.mkv Guida galattica per autostoppisti [BDrip 720p ITA-ENG sub ITA-ENG].mkv Hook - Capitan Uncino (1991).avi Kick Ass 2.avi Lemony Snicket - Una serie di sfortunati eventi 2004.avi Monty Python e il Sacro Graal.avi Pacific_Rim_2004_BdRip_1080p_ITA_ENG_ANONIMO_CREW.mkv Pompeii.2014.iTALiAN.DTS.Dual.1080p.BluRay.x264-TRtD_TeaM.mkv Ralph Spaccatutto.avi Red Hot Chili Simpson.avi RobinHood-UnUomoInCalzamaglia.ENG.srt The.Lego.Movie.2014.iTALiAN.AC3.DUAL.1080p.BluRay.x264-TrTd_TeaM.mkv The.Pagemaster.1994.1080p.BluRyMux.by.gemini9669.mkv Tom.&.Jerry.Avventure.Giganti.Giant.Adventure.2013.DVDRip.ITA.AC3.ENG.Mp3-MLN.avi Tron 480p.mkv Viaggi Spazio - Temporali.avi Vite Aliene.avi [DivX - ITA] The Simpson - Natale con i Simpsons 2003.avi [SUB ITA] Monty Python e il Sacro Graal.srt [Sub ENG] Monty Python e il Sacro Graal.srt codeschool_1322.mp4 corto.avi film xvid.ENG.srt [rec].mp4 recita.mp4 regeng.flv'; my $regex = qr/^(?!\d\d?[ex]\d\d?)(?:\[(?:[-\w\s]+)*\] )?(.*?)[-_. ]?(?:[\{\(\[]?(?:dvdrip|[-._\b]ita|[-._\b]eng|xvid| cd\d|dvdscr|\w{1,5}rip|divx|\d+p|\d{4}).*?)?\.([\w]{2,3})$/imp; if ( $str =~ /$regex/g ) { print "Whole match is ${^MATCH} and its start/end positions can be obtained via \$-[0] and \$+[0]\n"; # print "Capture Group 1 is $1 and its start/end positions can be obtained via \$-[1] and \$+[1]\n"; # print "Capture Group 2 is $2 ... and so on\n"; } # ${^POSTMATCH} and ${^PREMATCH} are also available with the use of '/p' # Named capture groups can be called via $+{name}

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 Perl, please visit: http://perldoc.perl.org/perlre.html