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

/
/
ims

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"((<.*?):Envelope.*Envelope>)" test_str = ("31-10-2014 00:12:12,075 [INFO] REQUEST:\n" "<?xml version=\"1.0\" encoding=\"utf-8\"?><SOAP-ENV:Envelope xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:SOAP-ENC=\"http://schemas.xmlsoap.org/soap/encoding/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:ns2=\"urn:ZEKTransactionService\" xmlns:ns1=\"http://zeksoap.xml.prechku.sys:7001/dvzek/services/ZEKTransactionService\" xmlns:ns3=\"http://impl.zkb.appl.ch\"><SOAP-ENV:Body SOAP-ENV:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\"><ns1:closeLeasingMietvertrag><identityDescriptor xsi:type=\"ns2:IdentityDescriptor\"><clientUserId xsi:type=\"xsd:string\">EXPLOIT</clientUserId><name xsi:type=\"xsd:string\">RCISoapUser</name><password xsi:type=\"xsd:string\">ziucx+okpb</password></identityDescriptor><requestEntities xsi:type=\"SOAP-ENC:Array\" SOAP-ENC:arrayType=\"ns2:RequestEntity[1]\"><item xsi:type=\"ns2:RequestEntity\"><addressDescription xsi:type=\"ns2:AddressDescription\"><birthdate xsi:type=\"xsd:string\">1961-03-13</birthdate><city xsi:type=\"xsd:string\">Balsthal</city><country xsi:type=\"xsd:string\">CHE</country><datumWohnhaftSeit xsi:type=\"xsd:string\">1990-04-01</datumWohnhaftSeit><firstname xsi:type=\"xsd:string\">Mina</firstname><housenumber xsi:type=\"xsd:string\">.</housenumber><legalForm xsi:type=\"xsd:int\">1</legalForm><name xsi:type=\"xsd:string\">Bilalli</name><nationality xsi:type=\"xsd:string\">XKO</nationality><sex xsi:type=\"xsd:int\">1</sex><street xsi:type=\"xsd:string\">Guntenfluhweg 14</street><zip xsi:type=\"xsd:string\">4710</zip><zivilstandscode xsi:type=\"xsd:int\">1</zivilstandscode></addressDescription><debtorRole xsi:type=\"xsd:int\">0</debtorRole><forceNewAddress xsi:type=\"xsd:int\">0</forceNewAddress><previousReturnCode xsi:type=\"xsd:int\">0</previousReturnCode><refno xsi:type=\"xsd:int\">1</refno></item></requestEntities><leasingMietvertrag xsi:type=\"ns2:LeasingMietvertragDescription\"><anzahlMonatlicheRaten xsi:type=\"xsd:int\">0</anzahlMonatlicheRaten><anzahlung xsi:type=\"xsd:int\">0</anzahlung><bonitaetsCodeIKO xsi:type=\"xsd:int\">4</bonitaetsCodeIKO><bonitaetsCodeZEK xsi:type=\"xsd:int\">5</bonitaetsCodeZEK><datumBonitaetIKO xsi:type=\"xsd:string\">2014-10-30</datumBonitaetIKO><datumBonitaetZEK xsi:type=\"xsd:string\">2014-10-30</datumBonitaetZEK><debtorRole xsi:type=\"xsd:int\">0</debtorRole><ersteGrosseRate xsi:type=\"xsd:int\">0</ersteGrosseRate><filiale xsi:type=\"xsd:int\">0</filiale><grosseSchlussrate xsi:type=\"xsd:int\">0</grosseSchlussrate><herkunft xsi:type=\"xsd:int\">0</herkunft><kennzeichen xsi:type=\"xsd:int\">0</kennzeichen><kreditBetrag xsi:type=\"xsd:float\">0</kreditBetrag><kreditVertragID xsi:type=\"xsd:string\">142051011553</kreditVertragID><monatsrate xsi:type=\"xsd:float\">0</monatsrate><restwert xsi:type=\"xsd:int\">0</restwert><sicherstellungsCode xsi:type=\"xsd:int\">0</sicherstellungsCode><theoRestSaldo xsi:type=\"xsd:float\">0</theoRestSaldo><vertragsStatus xsi:type=\"xsd:int\">0</vertragsStatus></leasingMietvertrag></ns1:closeLeasingMietvertrag></SOAP-ENV:Body></SOAP-ENV:Envelope>\n" " | Thread:http-7001-Processor23") matches = re.search(regex, test_str, re.IGNORECASE | re.MULTILINE | re.DOTALL) if matches: print ("Match was found at {start}-{end}: {match}".format(start = matches.start(), end = matches.end(), match = matches.group())) for groupNum in range(0, len(matches.groups())): groupNum = groupNum + 1 print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = matches.start(groupNum), end = matches.end(groupNum), group = matches.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