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 = "(?:demande|incident).*(?'num_externe'INC[0-9]*).*(?:\\n.*)*Nom\\s*:\\s*(?'ins_libl'.*\\)).*(?:\\n.*)*Ville\\s*:\\s*(?'apt_localisation'.*?)\\s*(?:\\n.*)*-\\s*Demandeur\\s*:\\s*(?'apt_nom'.*?,.*?),(?'apt_telephone'.*?),.*(?:\\n.*)*Cat.gorie\\s*:\\s*(?'tsy_lib'.*?)\\s*(?:\\n.*)*\\s*-.*Description.*?:\\s*(?:\\n.*)*\\s*o\\s*(?'commentaire_externe'.*?)\\s*\\n"; final String string = "<![CDATA[ Bonjour, \n" + " \n" + " La facture proforma de la demande n°INC0937639 a été mise à jour Pour accéder à ce dossier de nature &quot; demande &quot;, cliquer ici . \n" + " Détail des informations : \n" + " - Date de création : 21/03/2019 15:51:54 \n" + " - Site concerné : \n" + " o Nom : RRAA COURS LA VILLE (00363800) \n" + " o Etage : \n" + " o Bureau : \n" + " o Adresse 1 : 55 RUE GEORGES CLEMENCEAU \n" + " o Adresse 2 : \n" + " o Ville : COURS LA VILLE \n" + " o CP : 69470 \n" + " o Téléphone : 0474647881 \n" + " o Fax : 0474647888 \n" + " - Horaires du site : \n" + " o Statut : Ouvert LP : BERNARD,franck Lu=Fermé Fermé Ma=08H30-12H00 13H30-17H45 Me=08H30-12H00 13H30-17H45 Je=08H30-12H00 14H15-17H45 Ve=08H30-12H00 13H30-17H45 Sa=08H30-12H00 Fermé Di=Fermé Fermé \n" + " - Demandeur : FILLON,LOREN,0474647881, \n" + " - Logisticien : \n" + " o Monsieur BERNARD, franck \n" + " - Equipe d'affectation :LP \n" + " - Intervenant : BERNARD franck \n" + " - Catégorie : MULTITECHNIQUE\\Petits travaux\\Menuiserie \n" + " - Description du dossier : \n" + " o Pose d'une plaque pour boucher l'ouverture sur la boite aux lettres bureau RA \n" + " \n" + " Pour accéder à ce dossier, cliquer ici . \n" + " ]]>\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