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

/
/
gx

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 = "(?x)(?(DEFINE)(?<cons>\b(?:" & @CRLF & _ " (?<x>\d*)" & @CRLF & _ " (?:(?<a0>0)|(?<a1>1)|(?<a2>2)|(?<a3>3)|(?<a4>4)" & @CRLF & _ " |(?<a5>5)|(?<a6>6)|(?<a7>7)|(?<a8>8))" & @CRLF & _ " (?:9(?= 9*,\g{x}\d (?<y>\g{y}?+ 0)))*" & @CRLF & _ " ,\g{x}" & @CRLF & _ " (?(a0)1)(?(a1)2)(?(a2)3)(?(a3)4)(?(a4)5)" & @CRLF & _ " (?(a5)6)(?(a6)7)(?(a7)8)(?(a8)9)" & @CRLF & _ " (?(y)\g{y})" & @CRLF & _ " # handle the 999 => 1000 case separately" & @CRLF & _ " | (?:9(?= 9*,1 (?<z>\g{z}?+ 0)))+" & @CRLF & _ " ,1\g{z}" & @CRLF & _ ")\b))" & @CRLF & _ "" & @CRLF & _ "# list of two or more consecutive integers" & @CRLF & _ "(?=(?&cons))\d+" & @CRLF & _ "(?:,(?=(?&cons))\d+)*" & @CRLF & _ ",\d+" Local $sString = "0,1,2,3" & @CRLF & _ "8,9,10,11" & @CRLF & _ "1999,2000,2001" & @CRLF & _ "99,100,101" & @CRLF & _ "" & @CRLF & _ "42" & @CRLF & _ " 3,2,1" & @CRLF & _ "1,2,4" & @CRLF & _ "10,11,13" 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