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

use strict; my $str = '"FRENCH","11.03.2022 13:36","DocumentType.APPROVAL_AV","Approbation de la personne responsable du marché (""RdM"") and (""RdM"")" "SPANISH","11.03.2022 13:36","DocumentType.APPROVAL_AV","Aprobación del o de la responsable de la orden" "ENGLISH","11.03.2022 13:36","DocumentType.ARGE_DECLARATION","Declaration of the consortium (""ARGE"")" "FRENCH","11.03.2022 13:36","DocumentType.ARGE_DECLARATION","Déclaration du groupement" "SPANISH","11.03.2022 13:36","DocumentType.ARGE_DECLARATION","Declaración del consorcio (en Alemania &ldquo;ARGE&rdquo;)" "ENGLISH","11.03.2022 13:54","appHelpSignpostText","If you have any technical issues, please do not hesitate to contact us personally through the following channels:<br /><br /><a href=""https://test.com/"" target=""_blank"">{{downloadIcon}}Guide</a> to help you enter your request." "FRENCH","11.03.2022 13:54","appHelpSignpostText","Si vous rencontrez des difficultés techniques, n&rsquo;hésitez pas à nous contacter personnellement via les canaux suivants : <br /><br /><a href=""https://test.com/"" target=""_blank"">{{downloadIcon}}Guide</a>, pour vous aider à saisir votre demande." "SPANISH","11.03.2022 13:54","appHelpSignpostText","Si tiene dificultades técnicas, no dude en ponerse personalmente en contacto con nosotros o nosotras a través de los siguientes canales:<br /><br /><a href=""https://test.com/"" target=""_blank"">{{downloadIcon}}Guía</a>, que le servirá de ayuda para introducir su solicitud." "ENGLISH","11.03.2022 13:36","appraisalAndConsultingRadio","Consulting contracts for <b>Test Service (TeS)</b>" "FRENCH","11.03.2022 13:36","appraisalAndConsultingRadio","Contrats de conseil pour <b>Test Service (TeS)</b>" "ENGLISH","11.03.2022 13:36","argeRadio","Consortium (called ""Arge"" in German)" "FRENCH","11.03.2022 13:36","argeRadio","Groupement momentané d&rsquo;entreprises (groupement)" "SPANISH","11.03.2022 13:36","appraisalAndConsultingRadio","Contratos de asesoramiento para <b>Test (Tst)</b>" "ENGLISH","11.03.2022 13:54", "sustainabilitySignpostText","The goal of sustainable management is to ensure that our earth is worth living on for future generations.<br /><br />More about GIZ&rsquo;s sustainability activities can be found in the IDA communities <a href=""https://test.com/"" target=""_blank"">{{purIcon}}Corporate Sustainability""</a> (more general) or <a href=""https://test.com/"" target=""_blank"">{{purIcon}}Sustainable Procurement</a> (especially for procurement). There you will find extensive information and handouts to help you make our planet a little more climate-friendly.<br /><br />And this begins not least in procurement." '; my $regex = qr/^"(?!FRENCH")[^"]*".*(*SKIP)(*F)|("")([^<>]*?)("")(?=(?:[^>]*?(?:<|$)))/mp; 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