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
  • Match everything enclosed
    (?:...)
  • Capture everything enclosed
    (...)
  • 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

/
/

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 = "\s+Content-[Tt]ype:\s*\S+" Local $sString = "Accept-Ranges: bytes" & @CRLF & _ "Cache-Control: max-age=604800" & @CRLF & _ "Content-Type: text/html" & @CRLF & _ "Date: Fri, 14 Aug 2015 17:45:05 GMT" & @CRLF & _ "Etag: "359670651"" & @CRLF & _ "Expires: Fri, 21 Aug 2015 17:45:05 GMT" & @CRLF & _ "Last-Modified: Fri, 09 Aug 2013 23:54:35 GMT" & @CRLF & _ "Server: ECS (fty/2FA4)" & @CRLF & _ "X-Cache: HIT" & @CRLF & _ "x-ec-custom-error: 1" & @CRLF & _ "Content-Length: 1270" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "- 0%[ ] 0 --.-KB/s <!doctype html>" & @CRLF & _ "<html>" & @CRLF & _ "<head>" & @CRLF & _ " <title>Example Domain</title>" & @CRLF & _ "" & @CRLF & _ " <meta charset="utf-8" />" & @CRLF & _ " <meta http-equiv="Content-type" content="text/html; charset=utf-8" />" & @CRLF & _ " <meta name="viewport" content="width=device-width, initial-scale=1" />" & @CRLF & _ " <style type="text/css">" & @CRLF & _ " body {" & @CRLF & _ " background-color: #f0f0f2;" & @CRLF & _ " margin: 0;" & @CRLF & _ " padding: 0;" & @CRLF & _ " font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;" & @CRLF & _ " " & @CRLF & _ " }" & @CRLF & _ " div {" & @CRLF & _ " width: 600px;" & @CRLF & _ " margin: 5em auto;" & @CRLF & _ " padding: 50px;" & @CRLF & _ " background-color: #fff;" & @CRLF & _ " border-radius: 1em;" & @CRLF & _ " }" & @CRLF & _ " a:link, a:visited {" & @CRLF & _ " color: #38488f;" & @CRLF & _ " text-decoration: none;" & @CRLF & _ " }" & @CRLF & _ " @media (max-width: 700px) {" & @CRLF & _ " body {" & @CRLF & _ " background-color: #fff;" & @CRLF & _ " }" & @CRLF & _ " div {" & @CRLF & _ " width: auto;" & @CRLF & _ " margin: 0 auto;" & @CRLF & _ " border-radius: 0;" & @CRLF & _ " padding: 1em;" & @CRLF & _ " }" & @CRLF & _ " }" & @CRLF & _ " </style> " & @CRLF & _ "</head>" & @CRLF & _ "" & @CRLF & _ "<body>" & @CRLF & _ "<div>" & @CRLF & _ " <h1>Example Domain</h1>" & @CRLF & _ " <p>This domain is established to be used for illustrative examples in documents. You may use this" & @CRLF & _ " domain in examples without prior coordination or asking for permission.</p>" & @CRLF & _ " <p><a href="http://www.iana.org/domains/example">More information...</a></p>" & @CRLF & _ "</div>" & @CRLF & _ "</body>" & @CRLF & _ "</html>" Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYFULLMATCH) ; Present the entire match result _ArrayDisplay($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