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

/
/
g

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox Local $sRegex = "(?:DHI?-)?(?:IPC|HAC)-HDB?W\d+[A-Z]+\K(?:P-0\d{1,2}|P)" Local $sString = "DH-HAC-HDBW3802EP-Z" & @CRLF & _ "DH-HAC-HDBW3802EP-ZH" & @CRLF & _ "DH-HAC-HDW1000MP-028" & @CRLF & _ "DH-HAC-HDW1000RP-028" & @CRLF & _ "DH-HAC-HDW1100EMP-02" & @CRLF & _ "DH-HAC-HDW1100EMP-03" & @CRLF & _ "DH-HAC-HDW1100MP" & @CRLF & _ "DH-HAC-HDW1100MP-036" & @CRLF & _ "DH-HAC-HDW1100RP-028" & @CRLF & _ "DH-HAC-HDW1100RP-VF" & @CRLF & _ "DH-HAC-HDW1100AP-028" & @CRLF & _ "DH-HAC-HDW1100AP-036" & @CRLF & _ "DH-HAC-HDW1100AP" & @CRLF & _ "DH-HAC-HDW1100BP-028" & @CRLF & _ "DH-HAC-HDW1100BP-036" & @CRLF & _ "DH-HAC-HDW1100BP" & @CRLF & _ "DH-HAC-HDW1100CP-" & @CRLF & _ "DH-HAC-HDW1100DP-036" & @CRLF & _ "DH-HAC-HDW1100DP-" & @CRLF & _ "DH-HAC-HDW1100EMP-03" & @CRLF & _ "DH-HAC-HDW1100EMP-02" & @CRLF & _ "DH-HAC-HDW1100EMP-" & @CRLF & _ "DH-HAC-HDW1100EP-036" & @CRLF & _ "DH-HAC-HDW1100EP-028" & @CRLF & _ "DH-HAC-HDW1100EP-03" & @CRLF & _ "DH-HAC-HDW1100EP-02" & @CRLF & _ "DH-HAC-HDW1100EP-" & @CRLF & _ "DH-HAC-HDW1100EP" & @CRLF & _ "DH-HAC-HDW1100FP-03" & @CRLF & _ "DH-HAC-HDW1100FP-02" & @CRLF & _ "DH-HAC-HDW1100FP-" & @CRLF & _ "DH-HAC-HDW1100FP" & @CRLF & _ "DH-HAC-HDW1100RMP-03" & @CRLF & _ "DH-HAC-HDW1100RMP-02" & @CRLF & _ "DH-HAC-HDW1100RMP-" & @CRLF & _ "DH-HAC-HDW1100RMP" & @CRLF & _ "DH-HAC-HDW1100RP-028" & @CRLF & _ "DH-HAC-HDW1100RP-036" & @CRLF & _ "DH-HAC-HDW1100RP-" & @CRLF & _ "DH-HAC-HDW1100RP" & @CRLF & _ "DH-HAC-HDW1100SP-036" & @CRLF & _ "DH-HAC-HDW1100SP-028" & @CRLF & _ "DH-HAC-HDW1100SP-" & @CRLF & _ "DH-HAC-HDW1100SP" & @CRLF & _ "DH-HAC-HDW1100SLP-03" & @CRLF & _ "DH-HAC-HDW1100TP-" & @CRLF & _ "DH-HAC-HDW1100MP-036" & @CRLF & _ "DH-HAC-HDW1100MP-028" & @CRLF & _ "DH-HAC-HDW1100MP" & @CRLF & _ "" 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