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

/
/
gm

Test String

Code Generator

Language

Generated Code

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "(?m)^(?P<timestamp>[^\s]+)\s*(?P<elb>[^\s]+)\s*(?P<client_addr>[^:]+):\s*(?P<client_port>[^\s]+)\s*(?P<target_addr>[^:]+):\s*(?P<target_port>[^\s]+)\s*(?P<request_processing_time>[^\s]+)\s*(?P<backend_processing_time>[^\s]+)\s*(?P<response_processing_time>[^\s]+)\s*(?P<elb_status_code>[^\s]+)\s*(?P<backend_status_code>[^\s]+)\s*(?P<received_bytes>[^\s]+)\s*(?P<sent_bytes>[^\s]+)\s*"(?P<request>[^\"]+)"\s*(?P<user_agent>[^\s]+)\s*(?P<ssl_cipher>[^\s]+)\s*(?P<ssl_protocol>[^\s]+)" Local $sString = "2015-05-13T23:39:43.945958Z my-loadbalancer 192.168.131.39:2817 10.0.0.1:80 0.000086 0.001048 0.001337 200 200 0 57 "GET https://www.example.com:443/ HTTP/1.1" "curl/7.38.0" DHE-RSA-AES128-SHA TLSv1.2" & @CRLF & _ "" & @CRLF & _ "2015-05-13T23:39:43.945958Z my-loadbalancer 192.168.131.39:2817 10.0.0.1:80 0.001069 0.000028 0.000041 - - 82 305 "- - - " "-" - -" & @CRLF & _ "" & @CRLF & _ "2015-05-13T23:39:43.945958Z my-loadbalancer 192.168.131.39:2817 10.0.0.1:80 0.001065 0.000015 0.000023 - - 57 502 "- - - " "-" ECDHE-ECDSA-AES128-GCM-SHA256 TLSv1.2" 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