Regular Expressions 101

Save & Share

  • Regex Version: ver. 1
  • Update Regex
    ctrl+⇧+s
  • Save new Regex
    ctrl+s
  • Add to Community Library

Flavor

  • PCRE2 (PHP >=7.3)
  • PCRE (PHP <7.3)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java 8
  • .NET 7.0 (C#)
  • Rust
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests

Tools

Sponsors
There are currently no sponsors. Become a sponsor today!
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

/
/
g

Test String

Code Generator

Generated Code

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "\[([^\].]*)\]:\W?(.*)" Local $sString = "[12:17:05][econ]: cid=0 authed" & @CRLF & _ "[12:17:11][server]: player is ready. ClientID=0 addr=87.100.133.110:64762" & @CRLF & _ "[12:17:11][game]: Teams are balanced (red=1 blue=0)" & @CRLF & _ "[12:17:11][server]: player has entered the game. ClientID=0 addr=87.100.133.110:64762" & @CRLF & _ "[12:17:11][game]: team_join player='0:wavi' team=0" & @CRLF & _ "[12:17:13][game]: pickup player='0:wavi' item=3" & @CRLF & _ "[12:17:25][game]: pickup player='0:wavi' item=2" & @CRLF & _ "[12:17:33][game]: flag_grab player='0:wavi' team=0" & @CRLF & _ "[12:17:34][game]: pickup player='0:wavi' item=1" & @CRLF & _ "[12:17:34][game]: pickup player='0:wavi' item=1" & @CRLF & _ "[12:17:43][game]: pickup player='0:wavi' item=0" & @CRLF & _ "[12:17:44][game]: flag_capture player='0:wavi' team=0 time=11.38" & @CRLF & _ "[12:17:48][game]: kill killer='0:0:wavi' victim='0:0:wavi' weapon=-1 special=0" & @CRLF & _ "[12:17:52][server]: client dropped. cid=0 addr=87.100.133.110:64762 reason=''" & @CRLF & _ "[12:17:52][game]: kill killer='0:0:wavi' victim='0:0:wavi' weapon=-3 special=0" & @CRLF & _ "[12:17:52][game]: leave player='0:wavi'" & @CRLF & _ "[12:17:52][game]: Teams are balanced (red=0 blue=0)" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "[econ]: cid=0 authed" & @CRLF & _ "[server]: player is ready. ClientID=0 addr=87.100.133.110:64762" & @CRLF & _ "[game]: Teams are balanced (red=1 blue=0)" & @CRLF & _ "[server]: player has entered the game. ClientID=0 addr=87.100.133.110:64762" & @CRLF & _ "[game]: team_join player='0:wavi' team=0" & @CRLF & _ "[game]: pickup player='0:wavi' item=1" & @CRLF & _ "[game]: pickup player='0:wavi' item=1" & @CRLF & _ "[game]: pickup player='0:wavi' item=1" & @CRLF & _ "[game]: pickup player='0:wavi' item=2" & @CRLF & _ "[game]: pickup player='0:wavi' item=4" & @CRLF & _ "[game]: flag_grab player='0:wavi'" & @CRLF & _ "[game]: pickup player='0:wavi' item=2" & @CRLF & _ "[game]: pickup player='0:wavi' item=0" & @CRLF & _ "[game]: pickup player='0:wavi' item=3" & @CRLF & _ "[game]: flag_capture player='0:wavi'" & @CRLF & _ "[game]: pickup player='0:wavi' item=2" & @CRLF & _ "[game]: kill killer='0:wavi' victim='0:wavi' weapon=-1 special=0" & @CRLF & _ "[server]: client dropped. cid=0 addr=87.100.133.110:64762 reason=''" & @CRLF & _ "[game]: leave player='0:wavi'" & @CRLF & _ "[game]: Teams are balanced (red=0 blue=0)" Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYGLOBALFULLMATCH) Local $aFullArray[0] For $i = 0 To UBound($aArray) -1 _ArrayConcatenate($aFullArray, $aArray[$i]) Next $aArray = $aFullArray ; Present the entire match result _ArrayDisplay($aArray, "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 AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm