Regular Expressions 101

Save & Manage Regex

  • Current Version: 1
  • Save & Share
  • Community Library

Flavor

  • PCRE2 (PHP)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java
  • .NET 7.0 (C#)
  • Rust
  • PCRE (Legacy)
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests
Sponsors
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

Generated Code

import re regex = re.compile(r"(?P<date>\w{3}\s+\d{1,2}\s\d\d:\d\d:\d\d)\s+(?P<device>\S+)\s+(?:[^:]+:\s)@@(?P<sid_number>\d+),(?P<sid>[^,]+),(?:\"zoneUUID\"=\"(?P<zone_uuid>[^\"]+)\",|\"apMac\"=\"(?P<ap_mac>[^\"]+)\",|\"clientMac\"=\"(?P<client_mac>[^\"]+)\",|\"bssid\"=\"(?P<bssid>[^\"]+)\",|\"userId\"=\"(?P<user_id>[^\"]*)\",|\"wlanId\"=\"(?P<wlanId>\d+)\",|\"iface\"=\"(?P<iface>\S+)\",|\"tenantUUID\"=\"(?P<tenantUUID>\S+)\"|\"apName\"=\"(?P<ap_name>[^\"]+)\",|\"rogueMac\"=\"(?P<rogue_mac>[^\"]+)\",|\"ssid\"=\"(?P<ssid>[^\"]*)\",|\"wlanId\"=\"(?P<wlan_id>[^\"]+)\",|\"radio\"=\"(?P<radio>[^\"]+)\",|\"channel\"=\"(?P<channel>[^\"]+)\",|\"timestamp\"=\"(?P<timestamp>\d{10})[^\"]*\",|\"apLocation\"=\"(?P<ap_location>[^\"]+)\",?|\"timeZone\"=\"(?P<time_zone>[^\"]+)\",|\"zoneName\"=\"(?P<zone_name>[^\"]+)\",?|\"reason\"=\"(?P<reason>[^\"]+)\",|\"fwVersion\"=\"(?P<fwVersion>[^\"]+)\",|\"model\"=\"(?P<model>[^\"]+)\",|\"nodeName\"=\"(?P<node_name>[^\"]+)\",|\"licenseServerName\"=\"(?P<licenseServerName>[^\"]+)\",?)+\"", flags=re.MULTILINE) test_str = "Nov 26 19:09:07 vsz01 Core: @@205,clientInactivityTimeout,\"apMac\"=\"90:3a:72:2f:10:70\",\"clientMac\"=\"00:34:da:1d:7f:83\",\"ssid\"=\"DIGITROL COLABORADORES\",\"bssid\"=\"90:3a:72:af:10:7c\",\"userId\"=\"fgfhf\",\"wlanId\"=\"14\",\"iface\"=\"wlan34\",\"tenantUUID\"=\"839f87c6-d116-497e-afce-aa8157abd30c\",\"apName\"=\"DIGITROL AP R310-18329\",\"clientIP\"=\"192.168.25.62\",\"userName\"=\"0034da1d7f83\",\"vlanId\"=\"1\",\"radio\"=\"a/n/ac\",\"encryption\"=\"WPA2-AES\",\"osType\"=\"Android\",\"hostname\"=\"android-6d4a9dbc81fecfcf\",\"firstAuth\"=\"1543259331\",\"associationTime\"=\"1543252166\",\"ipAssignTime\"=\"1543259332\",\"disconnectTime\"=\"1543259346\",\"sessionDuration\"=\"15\",\"disconnectReason\"=\"4\",\"rxFrames\"=\"26\",\"rxBytes\"=\"3551\",\"txFrames\"=\"54\",\"txBytes\"=\"5738\",\"peakRx\"=\"3551\",\"peakTx\"=\"5738\",\"rssi\"=\"12\",\"receivedSignalStrength\"=\"-93\",\"Instantaneous rssi\"=\"0\",\"Xput\"=\"0\",\"fwVersion\"=\"3.6.1.0.354\",\"model\"=\"R310\",\"wlanGroupUUID\"=\"3ab644a3-7eee-11e8-b12e-000000939903\",\"zoneUUID\"=\"2babcf8c-ab2a-4283-aedc-3ac00c525734\",\"zoneName\"=\"Digitrol\",\"timeZone\"=\"BRT+3BRST,M10.3.0/00:00,M2.3.0/00:00\",\"apLocation\"=\"\",\"apGps\"=\"\",\"apIpAddress\"=\"192.168.25.8\",\"apIpv6Address\"=\"\",\"apGroupUUID\"=\"1bc2200a-2251-4a04-a7db-0f888e3fa776\",\"domainId\"=\"1f90466b-4b53-4b19-b0ed-47c8778f269c\",\"idealEventVersion\"=\"3.5.0\",\"apDescription\"=\"\"" matches = regex.finditer(test_str) for match_num, match in enumerate(matches, start=1): print(f"Match {match_num} was found at {match.start()}-{match.end()}: {match.group()}") for group_num, group in enumerate(match.groups(), start=1): print(f"Group {group_num} found at {match.start(group_num)}-{match.end(group_num)}: {group}")

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