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 $sRegex = "(?m)^(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d\.\d+([+-][0-2]\d:[0-5]\d|Z))|(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d([+-][0-2]\d:[0-5]\d|Z))|(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d([+-][0-2]\d:[0-5]\d|Z))$" Local $sString = " 2009-12T12:34" & @CRLF & _ "" & @CRLF & _ "2009" & @CRLF & _ "2009-05-19T08:39:22.000Z" & @CRLF & _ "" & @CRLF & _ "2009-05-19" & @CRLF & _ "" & @CRLF & _ "2009-05-19" & @CRLF & _ "" & @CRLF & _ "20090519" & @CRLF & _ "" & @CRLF & _ "2009123" & @CRLF & _ "" & @CRLF & _ "2009-05" & @CRLF & _ "" & @CRLF & _ "2009-123" & @CRLF & _ "" & @CRLF & _ "2009-222" & @CRLF & _ "" & @CRLF & _ "2009-001" & @CRLF & _ "" & @CRLF & _ "2009-W01-1" & @CRLF & _ "" & @CRLF & _ "2009-W51-1" & @CRLF & _ "" & @CRLF & _ "2009-W511" & @CRLF & _ "" & @CRLF & _ "2009-W33" & @CRLF & _ "" & @CRLF & _ "2009W511" & @CRLF & _ "" & @CRLF & _ "2009-05-19" & @CRLF & _ "" & @CRLF & _ "2009-05-19 00:00" & @CRLF & _ "" & @CRLF & _ "2009-05-19 14" & @CRLF & _ "" & @CRLF & _ "2009-05-19 14:31" & @CRLF & _ "" & @CRLF & _ "2009-05-19 14:39:22" & @CRLF & _ "" & @CRLF & _ "2009-05-19T14:39Z" & @CRLF & _ "" & @CRLF & _ "2009-W21-2" & @CRLF & _ "" & @CRLF & _ "2009-W21-2T01:22" & @CRLF & _ "" & @CRLF & _ "2009-139" & @CRLF & _ "" & @CRLF & _ "2009-05-19 14:39:22-06:00" & @CRLF & _ "" & @CRLF & _ "2009-05-19 14:39:22+0600" & @CRLF & _ "" & @CRLF & _ "2009-05-19 14:39:22-01" & @CRLF & _ "" & @CRLF & _ "20090621T0545Z" & @CRLF & _ "" & @CRLF & _ "2007-04-06T00:00" & @CRLF & _ "" & @CRLF & _ "2007-04-05T24:00" & @CRLF & _ "" & @CRLF & _ "2010-02-18T16:23:48.5" & @CRLF & _ "" & @CRLF & _ "2010-02-18T16:23:48,444" & @CRLF & _ "" & @CRLF & _ "2010-02-18T16:23:48,3-06:00" & @CRLF & _ "" & @CRLF & _ "2010-02-18T16:23.4" & @CRLF & _ "" & @CRLF & _ "2010-02-18T16:23,25" & @CRLF & _ "" & @CRLF & _ "2010-02-18T16:23.33+0600" & @CRLF & _ "" & @CRLF & _ "2010-02-18T16.23334444" & @CRLF & _ "" & @CRLF & _ "2010-02-18T16,2283" & @CRLF & _ "" & @CRLF & _ "2009-05-19 143922.500" & @CRLF & _ "" & @CRLF & _ "2009-05-19 1439,55" 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