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
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 $sRegex = "(?m)^(?P<unit_design>Z)(?P<unit_type>SFW|SF)(?P<unit_size>200|160|125|100|32|40|50|63|80)(?P<mounting_type>F)(?P<decompression_feature>0|1)(?P<sep_1>-)(?P<cracking_pressure>1)(?P<sep_2>-)(?P<unit_series>1X|2X)(?P<sep_3>/)(?P<seal_material>M|V)(?P<sep_4>/)(?P<pipe_port>12|01)(?P<orifice_position>D|)(?P<orifice_diameter>00|08|10|12|15|40|)(?P<additional_details>(.|[0-9])*)$" Local $sString = "ZSF40F1-1-1X/M/01" & @CRLF & _ "ZSF40F0-1-1X/M/01" & @CRLF & _ "ZSF100F0-1-1X/M/01" & @CRLF & _ "ZSF80F1-1-1X/M/01D00" & @CRLF & _ "ZSF50F1-1-1X/M/01D00" & @CRLF & _ "ZSFW40F1-1-1X/M/01" & @CRLF & _ "ZSF100F1-1-1X/M/01" & @CRLF & _ "ZSFW100F1-1-1X/M/01" & @CRLF & _ "ZSF63F1-1-1X/M/01D00" & @CRLF & _ "ZSF80F0-1-1X/M/01D00" & @CRLF & _ "ZSF50F0-1-1X/M/01D00" & @CRLF & _ "ZSFW50F1-1-1X/M/01" & @CRLF & _ "ZSF40F0-1-1X/M/01SO1" & @CRLF & _ "ZSF63F0-1-1X/M/01D00" & @CRLF & _ "ZSFW80F0-1-1X/M/01" & @CRLF & _ "ZSFW100F0-1-1X/M/01" & @CRLF & _ "ZSFW80F1-1-1X/M/01" & @CRLF & _ "ZSF50F0-1-1X/M/01SO1" & @CRLF & _ "ZSF32F0-1-1X/M/01SO1" & @CRLF & _ "ZSF63F0-1-1X/M/01SO1" & @CRLF & _ "ZSFW160F0-1-1X/M/01" & @CRLF & _ "ZSFW40F0-1-1X/M/01" & @CRLF & _ "ZSFW63F1-1-1X/M/01" & @CRLF & _ "ZSFW63F0-1-1X/M/01" & @CRLF & _ "ZSFW50F0-1-1X/M/01" & @CRLF & _ "ZSF160F1-1-1X/M/01" & @CRLF & _ "ZSFW160F1-1-1X/M/01" & @CRLF & _ "ZSF160F0-1-1X/M/01" & @CRLF & _ "ZSF32F0-1-1X/M/01" & @CRLF & _ "ZSF32F1-1-1X/M/01SO6" & @CRLF & _ "ZSF100F1-1-1X/V/01" & @CRLF & _ "ZSF100F0-1-1X/M/01SO1" & @CRLF & _ "ZSF50F1-1-1X/M/01SO6" & @CRLF & _ "ZSF40F1-1-1X/M/01SO6" & @CRLF & _ "ZSFW32F0-1-1X/M/01" & @CRLF & _ "ZSF32F1-1-1X/M/01" & @CRLF & _ "ZSF80F0-1-1X/M/01SO1" & @CRLF & _ "ZSF80F1-1-1X/M/01SO1" & @CRLF & _ "ZSFW100F1-1-1X/V/01" & @CRLF & _ "ZSFW50F1-1-1X/V/01" & @CRLF & _ "ZSFW32F1-1-1X/M/01" & @CRLF & _ "ZSF160F0-1-1X/V/01" & @CRLF & _ "ZSF125F0-1-2X/M/01" & @CRLF & _ "ZSF125F1-1-2X/M/01" & @CRLF & _ "ZSFW125F1-1-2X/M/01" & @CRLF & _ "ZSFW125F0-1-2X/M/01" & @CRLF & _ "ZSF125F0-1-2X/V/01" & @CRLF & _ "ZSF125F1-1-2X/V/01" & @CRLF & _ "ZSFW125F0-1-2X/V/01" & @CRLF & _ "ZSF125F0-1-2X/M/01SO1" & @CRLF & _ "ZSF100F0-1-1X/V/01" & @CRLF & _ "ZSF63F0-1-1X/V/01D00" & @CRLF & _ "ZSF50F0-1-1X/V/01D00" & @CRLF & _ "ZSFW100F0-1-1X/V/01" & @CRLF & _ "ZSFW63F0-1-1X/V/01" & @CRLF & _ "ZSFW50F0-1-1X/V/01" & @CRLF & _ "ZSF125F1-1-2X/M/01SO6" & @CRLF & _ "ZSF200F0-1-2X/M/01D40" & @CRLF & _ "ZSFW200F0-1-2X/M/01D40" & @CRLF & _ "ZSFW125F1-1-2X/M/01SO6" & @CRLF & _ "ZSFW63F1-1-1X/V/01" & @CRLF & _ "ZSFW40F0-1-1X/V/01" & @CRLF & _ "ZSF160F1-1-1X/M/01SO12" & @CRLF & _ "ZSF125F0-1-2X/M/01SO6" & @CRLF & _ "ZSF160F0-1-1X/M/01SO6" & @CRLF & _ "ZSFW160F0-1-1X/M/01SO12" & @CRLF & _ "ZSF80F0-1-1X/V/01D00" & @CRLF & _ "ZSFW200F0-1-2X/V/01D40" & @CRLF & _ "ZSF100F0-1-1X/M/01SO13" & @CRLF & _ "ZSF125F0-1-2X/M/01SO13" & @CRLF & _ "ZSF125F0-1-2X/M/01SO14" & @CRLF & _ "ZSF63F0-1-1X/M/01D08" & @CRLF & _ "ZSF50F0-1-1X/M/01D08" & @CRLF & _ "ZSF80F0-1-1X/M/01D10" & @CRLF & _ "ZSF160F1-1-1X/M/01SO6" & @CRLF & _ "ZSF32F1-1-1X/M/01D08" & @CRLF & _ "ZSF100F0-1-1X/M/01D10" & @CRLF & _ "ZSF125F0-1-2X/M/01D12" & @CRLF & _ "ZSF160F0-1-1X/M/01D15" & @CRLF & _ "ZSF100F1-1-1X/M/01D10SO6" & @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