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

/
/
gm

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 = "(?m)--([a-z\d]+)-A--[\s\S]+?--\1-Z--" Local $sString = "--f15a0000-A--" & @CRLF & _ "[30/Aug/2018:14:06:33 +0200] W4fdyYHC0Xb8YDuIqk5YQgAAAD0 127.0.0.1 55454 127.0.0.1 80" & @CRLF & _ "--f15a0000-B--" & @CRLF & _ "GET /FormValidation/page1.php HTTP/1.1" & @CRLF & _ "Host: localhost" & @CRLF & _ "Connection: keep-alive" & @CRLF & _ "Upgrade-Insecure-Requests: 1" & @CRLF & _ "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36" & @CRLF & _ "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8" & @CRLF & _ "Referer: http://localhost/FormValidation/" & @CRLF & _ "Accept-Encoding: gzip, deflate, br" & @CRLF & _ "Accept-Language: en-US,en;q=0.9" & @CRLF & _ "tanuser: 00198343" & @CRLF & _ "" & @CRLF & _ "--f15a0000-F--" & @CRLF & _ "HTTP/1.1 200 OK" & @CRLF & _ "X-Powered-By: PHP/5.6.35" & @CRLF & _ "Content-Length: 851" & @CRLF & _ "Keep-Alive: timeout=5, max=99" & @CRLF & _ "Connection: Keep-Alive" & @CRLF & _ "Content-Type: text/html; charset=UTF-8" & @CRLF & _ "" & @CRLF & _ "--f15a0000-Z--" & @CRLF & _ "" & @CRLF & _ "--bb410000-A--" & @CRLF & _ "[30/Aug/2018:14:06:37 +0200] W4fdzYHC0Xb8YDuIqk5YQwAAAD0 127.0.0.1 55454 127.0.0.1 80" & @CRLF & _ "--bb410000-B--" & @CRLF & _ "POST /FormValidation/validation.php HTTP/1.1" & @CRLF & _ "Host: localhost" & @CRLF & _ "Connection: keep-alive" & @CRLF & _ "Content-Length: 33" & @CRLF & _ "Accept: */*" & @CRLF & _ "Origin: http://localhost" & @CRLF & _ "X-Requested-With: XMLHttpRequest" & @CRLF & _ "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36" & @CRLF & _ "Content-Type: application/x-www-form-urlencoded; charset=UTF-8" & @CRLF & _ "Referer: http://localhost/FormValidation/page1.php" & @CRLF & _ "Accept-Encoding: gzip, deflate, br" & @CRLF & _ "Accept-Language: en-US,en;q=0.9" & @CRLF & _ "tanuser: 00198343" & @CRLF & _ "" & @CRLF & _ "--bb410000-C--" & @CRLF & _ "name1=test&email1=ssn%40gmail.com" & @CRLF & _ "--bb410000-F--" & @CRLF & _ "HTTP/1.1 200 OK" & @CRLF & _ "X-Powered-By: PHP/5.6.35" & @CRLF & _ "Content-Length: 17" & @CRLF & _ "Keep-Alive: timeout=5, max=98" & @CRLF & _ "Connection: Keep-Alive" & @CRLF & _ "Content-Type: text/html; charset=UTF-8" & @CRLF & _ "" & @CRLF & _ "--bb410000-Z--" 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