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
Processing...

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 = "<NUM_INS>(?'ins_numins'.*)<\\x2FNUM_INS>.*<NUM_EQUIPEMENT>(?'num_equipement'.*)<\\x2FNUM_EQUIPEMENT>.*<APT_CIVILITE>(?'apt_civilite'.*)<\\x2FAPT_CIVILITE>.*<APT_NOM>(?'apt_nom'.*)<\\x2FAPT_NOM>.*<APT_TELEPHONE>(?'apt_telephone'.*)<\\x2FAPT_TELEPHONE>.*<APT_E_MAIL>(?'apt_e_mail'.*)<\\x2FAPT_E_MAIL>.*<APT_LOCALISATION>(?'apt_localisation'.*)<\\x2FAPT_LOCALISATION>.*<TSY_CD>(?'tsy_lib'.*)<\\x2FTSY_CD>.*<QSY_CD>(?'qsy_lib'.*)<\\x2FQSY_CD>.*<COMMENTAIRE_EXTERNE>(?'commentaire_externe'.*)<\\x2FCOMMENTAIRE_EXTERNE>"; final String string = "<NUM_EXTERNE></NUM_EXTERNE> <NUM_INS>5092427002</NUM_INS> <NUM_EQUIPEMENT></NUM_EQUIPEMENT> <APT_CIVILITE>1</APT_CIVILITE> <APT_NOM>PC INCENDIE SEQUANA HQPAR -</APT_NOM> <APT_TELEPHONE>+33145381818</APT_TELEPHONE> <APT_E_MAIL>PCINCENDIE.SEQUANA@accor.com</APT_E_MAIL> <APT_LOCALISATION>SS1 local TGS2</APT_LOCALISATION> <APT_CR_MAIL>O</APT_CR_MAIL> <TSY_CD>3764</TSY_CD> <QSY_CD>5</QSY_CD> <COMMENTAIRE_EXTERNE>Alarme CPI : TGS2 Code alarme Q4.</COMMENTAIRE_EXTERNE> "; 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