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 $sRegex = "(?m)^([+-]?\d*((([02468][048]|[13579][26]|\d\d(?!00))([02468][048]|[13579][26]))|\d{4}(?!-02-29|-366))-((?!02-3|(0[469]|11)-31|000)((0[1-9]|1[012])-(0[1-9]|[12]\d|30|31)|([012]\d\d|3([0-5]\d|6[0-6])))|(W(?!00)([0-4]\d|51|52)-[1-7]))|((\+?\d*([02468][048]|[13579][26])|-\d*([02468][159]|[13579][37]))(04|09|15|20|26|32|37|43|48|54|60|65|71|76|82|88|93|99)|(\+?\d*([02468][159]|[13579][37])|-\d*([02468][26]|[13579][048]))(05|11|16|22|28|33|39|44|50|56|61|67|72|78|84|89|95)|(\+?\d*([02468][26]|[13579][048])|-\d*([02468][37]|[13579][159]))(01|07|12|18|24|29|35|40|46|52|57|63|68|74|80|85|91|96)|\+?\d*(([02468][37]|[13579][159])(03|14|20|25|31|36|42|53|59|64|70|76|81|87|92|[049]8))|-\d*(([02468][048]|[13579][26])([059]2|08|13|19|24|30|36|41|47|58|64|69|75|80|86|97)))-W53-[1-7])$" Local $sString = "2015-08-10" & @CRLF & _ "2015-10-08" & @CRLF & _ "12015-08-10" & @CRLF & _ "-2015-08-10" & @CRLF & _ "+2015-08-10" & @CRLF & _ "0015-08-10" & @CRLF & _ "1582-10-10" & @CRLF & _ "2015-02-28" & @CRLF & _ "2016-02-29" & @CRLF & _ "2000-02-29" & @CRLF & _ "0000-02-29" & @CRLF & _ "-2000-02-29" & @CRLF & _ "-2016-02-29" & @CRLF & _ "200000-02-29" & @CRLF & _ "2016-366" & @CRLF & _ "2000-366" & @CRLF & _ "0000-366" & @CRLF & _ "-2016-366" & @CRLF & _ "-2000-366" & @CRLF & _ "2015-081" & @CRLF & _ "2015-W33-1" & @CRLF & _ "2015-W53-7" & @CRLF & _ " 2015-08-10 " & @CRLF & _ "" 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