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 $sRegex = "(?m)[]^C]\w$|\w.\)|w[[+^]|\?[^w$]*\$$" Local $sString = "PPCG" & @CRLF & _ "^P" & @CRLF & _ "^[P^]P" & @CRLF & _ "[^?][PG]$" & @CRLF & _ "(?<!\\..)(?!]).$" & @CRLF & _ "^[\w^]*$|!|]P|G]\$$" & @CRLF & _ "!|[^?]P(CG|G..)?$" & @CRLF & _ "[^])]\$|^\^?P|P.\].$" & @CRLF & _ "([.$?]|G\])\$$|^\^?P|\]P$" & @CRLF & _ "([P.$?]\$|[]^]P|G\]\$|CG)$" & @CRLF & _ "!|((G.|P|\.)\$|[^?]P|CG)$" & @CRLF & _ "^[(!P]|G..$|]..\||[^?]P$" & @CRLF & _ "^.{3,23}[.-~]..\$$|[^P?][PG]$" & @CRLF & _ "^..(.[!G)(3w^]|.{7}$|$)|\$\?" & @CRLF & _ "\.\)|P[.$?]|w\^|^[^|C\\]*$|^P" & @CRLF & _ "^..(.[!)3G^w]|$)|\^.{7}$|G\)" & @CRLF & _ "\?[^w$]*\$$|[]^C]\w+$|w\^|\|..\)" & @CRLF & _ "\w.\)|\?[^-$]*\$$|[]^C]\w$|w[+^]" & @CRLF & _ "" & @CRLF & _ "[PPCG]" & @CRLF & _ "^[P\^]" & @CRLF & _ "[^\]]$" & @CRLF & _ "^\^?P" & @CRLF & _ "[^?][PG]$|<|PG" & @CRLF & _ "^[^\\|]*(\\\\)+[^\\|]*[^\]]$" & @CRLF & _ "^(.{,4}|.{9}|.{16,19}|.{5}P)$" & @CRLF & _ "^[^?]*[PG]$|[?$].*\$$" & @CRLF & _ "^[^[]P|]P|(G]|[.])\$$" & @CRLF & _ "\..$|!|\|G|^[\^P]P|P\^|G.\$$" & @CRLF & _ "...\^.P|^!|G]\$$|w|<!|^\^?P" & @CRLF & _ "([^\\}<]{3}|][^]]|^).?[$PG]$" & @CRLF & _ "^(..[^^].{4,22}\$|[^?]+\w)$|2" & @CRLF & _ "^(..[^^].{4,22}\$|[^?]+\w)$|~" & @CRLF & _ "^..(.[!()3G^w]|.{7}$|$)|G\\" & @CRLF & _ "[[?C(].[-!)|w]|^P|^[^C|\\]*$" & @CRLF & _ "[?[CP(].[-<)|w]|^P|^[^C|\\]*$" & @CRLF & _ "^..(.{7}$|.[3Gw!^)]|$)|G.?.?\)" & @CRLF & _ "^...[3w!G)]|^[^\\C|]*$|G.?.?\)" & @CRLF & _ "^[^C\\|]+$|G.\)|\.\)|w\^|^P|\...?]" & @CRLF & _ "^P|!.3|w\^|^[^C\\|]+$|\.[)$-](?!.!)" & @CRLF & _ "\?[^$w]*\$$|[]C^]\w$|w.]|\w.\)" & @CRLF & _ "\$..\\|\?[^w$]*\$$|w\^|[]^C]\w$" 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