Regular Expressions 101

Save & Share

  • Regex Version: ver. 1
  • Update Regex
    ctrl+⇧+s
  • Save new Regex
    ctrl+s
  • Add to Community Library

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

/
/
g

Test String

Code Generator

Language

Generated Code

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "<td>[A-Z0-9-]+<\/td>" Local $sString = "<table class="stripeMe">" & @CRLF & _ " <tbody>" & @CRLF & _ " <tr>" & @CRLF & _ " <th>Image</th>" & @CRLF & _ " <th>Part#</th>" & @CRLF & _ " <th>Original#</th>" & @CRLF & _ " <th>Description</th>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr class="alt">" & @CRLF & _ " <td>" & @CRLF & _ " <a href="/item/8438657/High_Capacity/AC-C27/18_TO_20_VOLT_65_WATT_AC_ADAPT"><img width="75" height="75" title="AM11X-2719 18 TO 20 Volt 65 Watt AC Adapter" src="/shop/images/image.php?img=BAT\8438657.jpg&amp;thumbnail=Y"></a>" & @CRLF & _ " </td>" & @CRLF & _ " <td><a title="AM11X-2719 18 TO 20 Volt 65 Watt AC Adapter" href="/item/8438657/High_Capacity/AC-C27/18_TO_20_VOLT_65_WATT_AC_ADAPT">AC-C27</a></td>" & @CRLF & _ " <td>TR82J</td>" & @CRLF & _ " <td>18 TO 20 Volt 65 Watt AC Adapter</td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr class="">" & @CRLF & _ " <td>" & @CRLF & _ " <a href="/item/10242499/High_Capacity/DRAC90B/DURACELL_90W_19V_UNIVERSAL_NOT"><img width="75" height="75" title="AM11X-2719 Duracell 90W 19V Universal Notebook AC Adapter" src="/shop/images/no_picture_thumb.jpg"></a>" & @CRLF & _ " </td>" & @CRLF & _ " <td><a title="AM11X-2719 Duracell 90W 19V Universal Notebook AC Adapter" href="/item/10242499/High_Capacity/DRAC90B/DURACELL_90W_19V_UNIVERSAL_NOT">DRAC90B</a></td>" & @CRLF & _ " <td>331-0536</td>" & @CRLF & _ " <td>Duracell 90W 19V Universal Notebook AC Adapter</td>" & @CRLF & _ " </tr>" & @CRLF & _ " </tbody>" & @CRLF & _ "</table>" 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