Regular Expressions 101

Save & Share

Flavor

  • PCRE2 (PHP >=7.3)
  • PCRE (PHP <7.3)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java 8
  • .NET 7.0 (C#)
  • Rust
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests

Tools

Sponsors
There are currently no sponsors. Become a sponsor today!
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

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{5,}\S+)(?:-REV)|(\d{5,})|(\d.+)(?:-REV).+|(\b[A-Za-z0-9]+-[A-Za-z0-9]+-[A-Za-z0-9]+\b)|(\d{4,}.\S+)" Local $sString = "SIEMENS10249071REV05" & @CRLF & _ "22D1496-REV-A" & @CRLF & _ "SANTASISE398FOP4" & @CRLF & _ "KCC C318-M-2328" & @CRLF & _ "22006-17114-REV-0" & @CRLF & _ "WELD30" & @CRLF & _ "2328ENDFIN" & @CRLF & _ "OSH4780973" & @CRLF & _ "10520398ITEM7" & @CRLF & _ "KCC C153-M-136290" & @CRLF & _ "2373 TAPER" & @CRLF & _ "SANTA ISE398 R2" & @CRLF & _ "SANTASISE398RGH1" & @CRLF & _ "34F0-010-102-REV-WELDMENT" & @CRLF & _ "14A1936D1F1-REV-NONE" & @CRLF & _ "6181194-REV-B" & @CRLF & _ "PRETE WT-80-1015BLIND" & @CRLF & _ "MAXAM340000566" & @CRLF & _ "SHARPE-36465 1ST" & @CRLF & _ "OSH 3899580" & @CRLF & _ "7494-03-301-REV-NONE" & @CRLF & _ "MAXAM340000566OP2" & @CRLF & _ "KCC C318-M-2373TAPER" & @CRLF & _ "CARDINAL36465" & @CRLF & _ "SIEMENS-10248227 REV.8" & @CRLF & _ "4212.8842-REV-Q" & @CRLF & _ "14A1936-REV-NONE" & @CRLF & _ "LATHE TOOL" & @CRLF & _ "360 YIELD 450111 RH MAIN PROGRAM;360 YIELD 450111 LH MAIN PROGRAM;450111" & @CRLF & _ "KCC C318-M-2373" & @CRLF & _ "360 YIELD 450211 RH MAIN PROGRAM;360 YIELD 450211 LH MAIN PROGRAM;450211" & @CRLF & _ "360 YIELD 450101 LH MAIN PROGRAM;450101" & @CRLF & _ "10753289-REV-02" & @CRLF & _ "30613D3-REV-05" & @CRLF & _ "30613D4-REV-05" & @CRLF & _ "OSHKOSH CORP/4381568/REV B/OP 1" & @CRLF & _ "OSHKOSH/12611249/REV A/OP1" & @CRLF & _ "14A1669 COVER-REV-J" & @CRLF & _ "OSH 4641290" & @CRLF & _ "KCC C318-M-2372" & @CRLF & _ "2328 FINISH" & @CRLF & _ "10751755-REV-2" & @CRLF & _ "312-133001-001-REV-D" & @CRLF & _ "KOOTR KT300AL OP1" & @CRLF & _ "OSHKOSH CORP/4381568/REV B/OP 2" & @CRLF & _ "360 YIELD 450201 LH MAIN PROGRAM;360 YIELD 450201 RH MAIN PROGRAM;450201" & @CRLF & _ "OSH 3899580OP2" & @CRLF & _ "10520398ITEM17" & @CRLF & _ "WELD30BIG" & @CRLF & _ "2347337-01-REV-NONE" & @CRLF & _ "2372 FINISH" & @CRLF & _ "10753199-02-REV-7" & @CRLF & _ "OSH 1693510" & @CRLF & _ "2328END" & @CRLF & _ "OSH 4384499OP2" & @CRLF & _ "E4-TKD-Z002A00KP;E4-TKD-ZOO2AOO WITH TRANSFER" & @CRLF & _ "10753199-02-REV-6" & @CRLF & _ "OSH 4384499" & @CRLF & _ "7494-04-103-REV-NONE" & @CRLF & _ "14A1669D2F1-REV-J" & @CRLF & _ "4212.8801-REV-O" & @CRLF & _ "2373 FINISH" & @CRLF & _ "2372 TAPER" & @CRLF & _ "SHARPE-36465 2ND" & @CRLF & _ "KOOTR KT300AL OP2" & @CRLF & _ "312-133034-001-REV-B" & @CRLF & _ "14A1937-REV-01" & @CRLF & _ "OSHKOSH/12611249/REV A/OP2" & @CRLF & _ "SANTASISE398FOP3" & @CRLF & _ "SIEMENS10248226REV08" & @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