Regular Expressions 101

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  • Unit Tests (4)

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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

Generated Code

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "(?m)^(\d{4}|\+\d{6})(?:-(\d{2})(?:-(\d{2})(?:T(\d{2}):(\d{2}):(\d{2})(?:\.{0,1})(\d{0,})(Z|([\-+])(\d{2})(?::{0,1})(\d{2}))?)?)?)?$" Local $sString = "HOLY CRAP - THIS LOOKS PERFECT FOR ISO + YYYY-MM-DD!" & @CRLF & _ "" & @CRLF & _ "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 & _ "" & @CRLF & _ "2016-11-09T01:00:23Z" & @CRLF & _ "2083-06-12T02:49:23.473Z" & @CRLF & _ "2020-06-12T02:49:23.473Z" & @CRLF & _ "2083-06-12T02:49:23" & @CRLF & _ "2020-06-12T02:49:23Z" & @CRLF & _ "2000-01-01" & @CRLF & _ "2000-01-99" & @CRLF & _ "12/01/1986" & @CRLF & _ "02/29/2016" & @CRLF & _ "02/29/2015" & @CRLF & _ "13/31/1986" & @CRLF & _ "12/31/1980" & @CRLF & _ "1/32/2015" & @CRLF & _ "1/31/2015" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "01012016" & @CRLF & _ "01/01/2016" & @CRLF & _ "1/1/2016" & @CRLF & _ "1/1/16" & @CRLF & _ "01/01/16" & @CRLF & _ "01-01-2016" & @CRLF & _ "1-1-2016" & @CRLF & _ "1-1-16" & @CRLF & _ "01-01-16" & @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