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

# coding=utf8 # the above tag defines encoding for this document and is for Python 2.x compatibility import re regex = r"(?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})" test_str = ("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") matches = re.finditer(regex, test_str, re.MULTILINE) for matchNum, match in enumerate(matches, start=1): print ("Match {matchNum} was found at {start}-{end}: {match}".format(matchNum = matchNum, start = match.start(), end = match.end(), match = match.group())) for groupNum in range(0, len(match.groups())): groupNum = groupNum + 1 print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = match.start(groupNum), end = match.end(groupNum), group = match.group(groupNum))) # Note: for Python 2.7 compatibility, use ur"" to prefix the regex and u"" to prefix the test string and substitution.

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 Python, please visit: https://docs.python.org/3/library/re.html