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

r"
"
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 $sRegex = "(?m)^(?!^(CON|PRN|AUX|NUL|COM[1-9]|LPT[1-9])$)[^\x00-\x1F<>:\"\/\\|?*]*[^\x00-\x1F<>:\"\/\\|?*. ]$" Local $sString = "hallo men name ist bernd.txt" & @CRLF & _ "< (less than)" & @CRLF & _ "> (greater than).txt." & @CRLF & _ "(greater-than).txt" & @CRLF & _ "(greater-than).txt." & @CRLF & _ ": (colon - sometimes works, but is actually NTFS Alternate Data Streams)" & @CRLF & _ "" (double quote)" & @CRLF & _ "/ (forward slash)" & @CRLF & _ "\ (backslash)" & @CRLF & _ "| (vertical bar or pipe)" & @CRLF & _ "? (question mark)" & @CRLF & _ "Loldusche (Lécuseß Adalb@mmals).jpeg" & @CRLF & _ "* (asterisk)" & @CRLF & _ "esel-ekay.txt" & @CRLF & _ "CON" & @CRLF & _ "CON, PRN, AUX, NUL " & @CRLF & _ "CON, PRN, AUX, NUL" & @CRLF & _ "COM1" & @CRLF & _ "COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9" & @CRLF & _ "LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, LPT9" & @CRLF & _ "LPT1" & @CRLF & _ "LPTx" & @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