Regular Expressions 101

Save & Manage Regex

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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

Substitution
Processing...

Code Generator

Language

Generated Code

import re regex = re.compile(r"((((\d{1,3}\.){2}\d{1,3})\[\.\])(\d{1,3}))\,(\d{1,5})?\/?(\d{1,5})?") test_str = ("185.106.121[.]118,\n" "133.100.202[.]85,443\n" "185.106.121[.]66,\n" "82.211.30[.]195,\n" "95.183.53[.]36,\n" "84.200.17[.]144,\n" "107.161.178[.]46,53/443\n" "190.117.186[.]171,443\n" "109.230.199[.]54,\n" "87.98.179[.]18,57421\n" "76.9.60[.]204,\n" "125.214.195[.]17,\n" "131.72.139[.]118,\n" "196.29.166[.]218,\n" "37.228.151[.]133,\n" "37.10.71[.]99,\n" "202.145.16[.]4,\n" "133.94.1[.]3,\n" "163.22.20[.]4,\n" "210.135.90[.]41,\n" "139.18.13[.]2,\n" "212.19.128[.]4,\n" "134.19.176[.]150,7777\n" "185.101.34[.]122,6478\n" "185.101.34[.]74,5367\n" "185.25.51[.]246,\n" "46.100.250[.]10,\n" "62.201.235[.]227,\n" "67.65.229[.]53,\n" "188.165.149[.]249,\n" "208.92.93[.]212,\n" "209.239.123[.]75,\n" "137.175.19[.]153,37779\n" "http://doladolaladont[.]com,\n" "https://alphanoun[.]bit/forum/ajax.php,\n" "http://coffeol[.]com/fend/raw_server.exe,\n" "http://inpend-traij[.]net/aka.doc,\n" "http://twlnco[.]com/gskf/online.php,\n" "https://a.pomf[.]cat/wryvpl.exe,\n" "https://filesblog[.]bit/blog/ajax.php,\n" "http://egonbute.duckdns[.]org,5588\n" "http://kampolento.ddns[.]net,1825\n" "http://memeku.ddns[.]net,1825\n" "http://sap.misapor[.]ch,443\n" "http://update.toythieves[.]com,8080\n" "http://workhard231.hopto[.]org,7070/8821\n" "http://www.eye-watch[.]in,\n" "https://channel.jetos[.]com,443\n" "https://mcf.otzo[.]com,443\n" "https://onlink.epac[.]to,443\n" "https://repview.ignorelist[.]com,443\n" "https://sap.misapor[.]ch,443\n" "https://statis.ignorelist[.]com,443\n" "https://update.toythieves[.]com,443\n" "http://piezasrazonable[.]com,80\n" "http://wmi.mykings[.]top,\n" "http://js.mykings[.]top:280/v.srt,280\n" "http://wmi.mykings[.]top:8888/test.html,8888\n" "http://wmi.mykings[.]top:8888/kill.html,8888\n" "http://coffeol[.]com/fend/lll.exe,\n") subst = "$3.$5" result = regex.sub(subst, test_str) if result: print(result)

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