Regular Expressions 101

Save & Manage Regex

  • Current Version: 2
  • Save & Share
  • Community Library

Flavor

  • PCRE2 (PHP)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java
  • .NET 7.0 (C#)
  • Rust
  • PCRE (Legacy)
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests
Sponsors
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
Processing...

Test String

Substitution
Processing...

Code Generator

Language

Generated Code

#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox Local $sRegex = "(?m)(<img.+?="Inv.+?\/)(.+?)(\.)(.+?)(class=")(.+?)(.+?)(.+?\n)" Local $sString = "<img src="InviousAnim_assets/FLM_Image_1.png" height="179px" width="102px" class="wlby_2"></img>" & @CRLF & _ "<img src="InviousAnim_assets/FLM_Image_2.png" height="55px" width="144px" class="wlby_2"></img>" & @CRLF & _ "<img src="InviousAnim_assets/FLM_Image_3.png" height="76px" width="76px" class="wlby_2"></img>" & @CRLF & _ "<img src="InviousAnim_assets/FLM_Image_4.png" height="142px" width="123px" class="wlby_2"></img>" & @CRLF & _ "<img src="InviousAnim_assets/FLM_Image_5.png" height="109px" width="109px" class="wlby_2"></img>" & @CRLF & _ "<img src="InviousAnim_assets/FLM_Image_6.png" height="73px" width="70px" class="wlby_2"></img>" & @CRLF & _ "<img src="InviousAnim_assets/FLM_Image_7.png" height="98px" width="97px" class="wlby_2"></img>" & @CRLF & _ "<img src="InviousAnim_assets/FLM_Image_8.png" height="109px" width="109px" class="wlby_2"></img>" & @CRLF & _ "<img src="InviousAnim_assets/FLM_Image_9.png" height="73px" width="70px" class="wlby_2"></img>" Local $sSubst = "\1\2\3\4\id="\2"/>\n" 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