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

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String[] args) { final String regex = "^\"(?!FRENCH\")[^\"]*\".*(*SKIP)(*F)|(\"\")([^<>]*?)(\"\")(?=(?:[^>]*?(?:<|$)))"; final String string = "\"FRENCH\",\"11.03.2022 13:36\",\"DocumentType.APPROVAL_AV\",\"Approbation de la personne responsable du marché (\"\"RdM\"\") and (\"\"RdM\"\")\"\n" + "\"SPANISH\",\"11.03.2022 13:36\",\"DocumentType.APPROVAL_AV\",\"Aprobación del o de la responsable de la orden\"\n" + "\"ENGLISH\",\"11.03.2022 13:36\",\"DocumentType.ARGE_DECLARATION\",\"Declaration of the consortium (\"\"ARGE\"\")\"\n" + "\"FRENCH\",\"11.03.2022 13:36\",\"DocumentType.ARGE_DECLARATION\",\"Déclaration du groupement\"\n" + "\"SPANISH\",\"11.03.2022 13:36\",\"DocumentType.ARGE_DECLARATION\",\"Declaración del consorcio (en Alemania &ldquo;ARGE&rdquo;)\"\n" + "\"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.\"\n" + "\"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.\"\n" + "\"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.\"\n" + "\"ENGLISH\",\"11.03.2022 13:36\",\"appraisalAndConsultingRadio\",\"Consulting contracts for <b>Test Service (TeS)</b>\"\n" + "\"FRENCH\",\"11.03.2022 13:36\",\"appraisalAndConsultingRadio\",\"Contrats de conseil pour <b>Test Service (TeS)</b>\"\n" + "\"ENGLISH\",\"11.03.2022 13:36\",\"argeRadio\",\"Consortium (called \"\"Arge\"\" in German)\"\n" + "\"FRENCH\",\"11.03.2022 13:36\",\"argeRadio\",\"Groupement momentané d&rsquo;entreprises (groupement)\"\n" + "\"SPANISH\",\"11.03.2022 13:36\",\"appraisalAndConsultingRadio\",\"Contratos de asesoramiento para <b>Test (Tst)</b>\"\n" + "\"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.\"\n"; final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE); 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