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 = "(?i)(?<Lp>\\d{1,2}(?![\\s\\S]*?(Lp\\.|Ilość|Cena)))\\s*(?<NazwaProduktu>([\\S ]*?[\\n\\r]*){1,3})\\s+(?<Ilosc>([a-z]{3}|\\d{1,3}\\s*[a-z]{3}))\\s*(?<SWW>\\s*\\d{2}\\.\\d{2}\\.\\d{2}.\\d{1,2})\\s*(?<CenaNetto>(\\d{1,3},\\d{2}|\\d{1,3}\\.\\d{1,3},\\d{2}))\\s*(?<WartoscNetto>(\\d{1,3},\\d{2}|\\d{1,3}\\.\\d{1,3},\\d{2}))\\s*(?<StVAT>\\d{1,2})\\s*(?<KwotaVAT>(\\d{1,3},\\d{2}|\\d{1,3}\\.\\d{1,3},\\d{2}))\\s*(?<WartoscBrutto>(\\d{1,3},\\d{2}|\\d{1,3}\\.\\d{1,3},\\d{2}))\\s*(?<Waluta>[a-z]{3})"; final String string = "aktura VAT\n" + "\n" + "Oryginał\n" + "numer/data Data sprzedaży\n" + "904129299 / 05.06.2020 05.06.2020\n" + "Opracował Pani Tomasiuk /\n" + "+48 32 7375860/ monika.tomasiuk@hydac.com.pl\n" + "nr zamówienia Klienta/data T552744 / 25.03.2020 nr dokumentu dostawy/data sprzedaży 8113565910 / 05.06.2020 numer zamówienia/data 4276410 / 01.04.2020\n" + "numer Klienta / referencje Klienta 79004603\n" + "Wasz nr NIP\n" + "554-031-17-75\n" + "Nasz nr NIP\n" + "635-000-02-22\n" + "referencje płatności\n" + "0904129299\n" + "\n" + "NABYWCA Pojazdy Szynowe PESA Bydgoszcz S.A.\n" + "Zygmunta Augusta 11\n" + "PL-85-082 BYDGOSZCZ\n" + "warunki płatności:\n" + "Do dnia 03.09.2020 po tym terminie naliczać będziemy ustawowe odsetki.\n" + "\n" + "rodzaj wysyłki:\n" + "transport drogowy\n" + "\n" + "warunki dostawy:\n" + "CPT Magazyn Odbiorcy\n" + "\n" + "______________________________________________________________________________________________________\n" + "Lp. Nazwa towaru Ilość SWW/ Cena Wartość VAT Kwota Wartość\n" + " /PKWiU netto netto % VAT brutto\n" + "______________________________________________________________________________________________________\n" + "80 HRL 4 KP 28 PAFF CZARNE\n" + "Obejma numer art. Klienta 9461-3800-00-0309\n" + "PAR 25.11.10.0 3,75 150,00 23 34,50 184,50 PLN\n" + "______________________________________________________________________________________________________\n" + " Razem 150,00 34,50 184,50\n" + "______________________________________________________________________________________________________\n" + " Do zapłaty: 184,50 PLN\n" + "Słownie: STO OSIEMDZIESIĄT CZTERY 50/100 zł\n" + "Płatność prosimy dokonać na konto nr: 25 1750 1035 0000 0000 3761 9078\n" + "Do czasu uiszczenia całkowitej zapłaty, towar jest własnością sprzedającego.\n" + "Dokument wygenerowany elektronicznie, nie wymaga podpisu.\n" + "NABYWCA Pojazdy Szynowe PESA Bydgoszcz S.A.\n" + "Zygmunta Augusta 11\n" + "PL-85-082 BYDGOSZCZ\n" + "data/numer\n" + "05.06.2020 / 904129299\n" + "Strona\n" + "2 / 2\n" + "\n" + "Joanna Korzeniec\n" + ".............................................\n" + "Podpis i pieczęć osoby uprawnionej do wystawienia faktury VAT\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