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

/
/
gm

Test String

Substitution

Processing...

Code Generator

Generated Code

#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox Local $sRegex = "(?m)^\s*(?:(?:\S\s?)*\s+){2}(?:L\d+:\s*)?| +(?= )" Local $sString = "1FC8 0801 000A BTst.B #$A, D1" & @CRLF & _ "1FCC 6608 BNE.B L315" & @CRLF & _ "1FCE 0240 00FF And #$FF, D0" & @CRLF & _ "1FD2 43F8 0400 Lea.L (DispatchTab), A1" & @CRLF & _ "1FD6 E548 L315: LsL #$2, D0" & @CRLF & _ "1FD8 2388 0000 Move.L A0, $0(A1,D0.W)" & @CRLF & _ "1FDC 7000 MoveQ.L #$0, D0" & @CRLF & _ "1FDE 4E75 Rts" & @CRLF & _ "1FE0 6102 L316: Bsr.B P42" & @CRLF & _ "1FE2 60F2 Bra.B L315" & @CRLF & _ "" & @CRLF & _ " P42:" & @CRLF & _ "1FE4 0240 01FF And #$1FF, D0" & @CRLF & _ "1FE8 43F8 0C00 Lea.L (ToolDispTable), A1" & @CRLF & _ "1FEC 0C40 0057 Cmp #$57, D0" & @CRLF & _ "1FF0 6212 BHI.B L318" & @CRLF & _ "1FF2 670C BEQ.B L317" & @CRLF & _ "1FF4 0C40 004F Cmp #$4F, D0" & @CRLF & _ "1FF8 6306 BLS.B L317" & @CRLF & _ "1FFA 0C40 0054 Cmp #$54, D0" & @CRLF & _ "1FFE 6604 BNE.B L318" & @CRLF & _ "2000 43F8 0400 L317: Lea.L (DispatchTab), A1" & @CRLF & _ "2004 4E75 L318: Rts" & @CRLF & _ "2006 61DC L319: Bsr.B P42" & @CRLF & _ "2008 601C Bra.B L320" & @CRLF & _ "" & @CRLF & _ " P_tGetTrapAddress:" & @CRLF & _ "200A 0801 0009 BTst.B #$9, D1" & @CRLF & _ "200E 67F6 BEQ.B L319" & @CRLF & _ "2010 0240 01FF And #$1FF, D0" & @CRLF & _ "2014 43F8 0C00 Lea.L (ToolDispTable), A1" & @CRLF & _ "2018 0801 000A BTst.B #$A, D1" & @CRLF & _ "201C 6608 BNE.B L320" & @CRLF & _ "201E 0240 00FF And #$FF, D0" & @CRLF & _ "2022 43F8 0400 Lea.L (DispatchTab), A1" & @CRLF & _ "2026 E548 L320: LsL #$2, D0" & @CRLF & _ "2028 2071 0000 Move.L $0(A1,D0.W), A0" & @CRLF & _ "202C 7000 MoveQ.L #$0, D0" & @CRLF & _ "202E 4E75 Rts" Local $sSubst = "" Local $sResult = StringRegExpReplace($sString, $sRegex, $sSubst) MsgBox($MB_SYSTEMMODAL, "Result", $sResult)

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