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

/
/
sig

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 = "(?si)<div[^>]*>\d{6}<\/div>" Local $sString = "<div dir="ltr"><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr"><br></div><u></u>" & @CRLF & _ " <div>" & @CRLF & _ " <center id="m_-2051398760120817894wrapper">" & @CRLF & _ " <table id="m_-2051398760120817894main" width="100%">" & @CRLF & _ " <tbody><tr id="m_-2051398760120817894logo">" & @CRLF & _ " <td>" & @CRLF & _ " <table width="100%">" & @CRLF & _ " <tbody><tr>" & @CRLF & _ " <td>" & @CRLF & _ " <img src="test.com/logo.png" width="140px" alt="xxxxx Logo" style="padding:0 10px">" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " </tbody></table>" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr>" & @CRLF & _ " <td height="18px"></td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr id="m_-2051398760120817894header">" & @CRLF & _ " <td>" & @CRLF & _ " <table width="100%">" & @CRLF & _ " <tbody><tr>" & @CRLF & _ " <td height="64px" style="background-color:#10069f;color:#fff;padding-left:24px;font-weight:700">Reset your password</td>" & @CRLF & _ " </tr>" & @CRLF & _ " </tbody></table>" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr id="m_-2051398760120817894content">" & @CRLF & _ " <td>" & @CRLF & _ " <table width="100%">" & @CRLF & _ " <tbody><tr>" & @CRLF & _ " <td style="background-color:#f6f5ff;padding:24px 24px 16px 24px">" & @CRLF & _ " <p style="margin-top:0">The following is the verification code required to complete your password reset.</p>" & @CRLF & _ " <p style="margin-bottom:24px">Enter the following verification code on the screen during the registration, and proceed to the next step.</p>" & @CRLF & _ " <div style="display:block;text-align:center;margin-bottom:8px;background-color:#fff;height:92px;font-weight:600;font-size:36px;line-height:92px">191418</div>" & @CRLF & _ " <span style="display:block;font-size:12px;color:#5d5d5d">*The verification code is valid only for 24 hours.</span>" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " </tbody></table>" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr>" & @CRLF & _ " <td height="24px"></td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr id="m_-2051398760120817894footer">" & @CRLF & _ " <td>" & @CRLF & _ " <table width="100%">" & @CRLF & _ " <tbody><tr>" & @CRLF & _ " <td style="background-color:#6d7777;padding:16px 24px;font-size:12px;color:#fff">" & @CRLF & _ " <table width="100%">" & @CRLF & _ " <tbody><tr>" & @CRLF & _ " <td id="m_-2051398760120817894footer-left">" & @CRLF & _ " <span style="display:block">amnimo Inc.</span>" & @CRLF & _ " <span style="display:block">0-3-30 usaa-fso, xxxxxxxx-shi, Tokyo, 180-8750, Japan</span>" & @CRLF & _ " <span style="display:block">Phone: +81-422-52-6779</span>" & @CRLF & _ " <span id="m_-2051398760120817894copyright-mb" style="margin-top:16px">© 2020 <div dir="ltr"><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr"><br></div><u></u>" & @CRLF & _ "<div>" & @CRLF & _ " <center id="m_-2051398760120817894wrapper">" & @CRLF & _ " <table id="m_-2051398760120817894main" width="100%">" & @CRLF & _ " <tbody><tr id="m_-2051398760120817894logo">" & @CRLF & _ " <td>" & @CRLF & _ " <table width="100%">" & @CRLF & _ " <tbody><tr>" & @CRLF & _ " <td>" & @CRLF & _ " <img src="https://test.com/logo.png" width="140px" alt="Amnimo Logo" style="padding:0 10px">" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " </tbody></table>" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr>" & @CRLF & _ " <td height="18px"></td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr id="m_-2051398760120817894header">" & @CRLF & _ " <td>" & @CRLF & _ " <table width="100%">" & @CRLF & _ " <tbody><tr>" & @CRLF & _ " <td height="64px" style="background-color:#10069f;color:#fff;padding-left:24px;font-weight:700">Reset your password</td>" & @CRLF & _ " </tr>" & @CRLF & _ " </tbody></table>" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr id="m_-2051398760120817894content">" & @CRLF & _ " <td>" & @CRLF & _ " <table width="100%">" & @CRLF & _ " <tbody><tr>" & @CRLF & _ " <td style="background-color:#f6f5ff;padding:24px 24px 16px 24px">" & @CRLF & _ " <p style="margin-top:0">The following is the verification code required to complete your password reset.</p>" & @CRLF & _ " <p style="margin-bottom:24px">Enter the following verification code on the screen during the registration, and proceed to the next step.</p>" & @CRLF & _ " <div style="display:block;text-align:center;margin-bottom:8px;background-color:#fff;height:92px;font-weight:600;font-size:36px;line-height:92px">191418</div>" & @CRLF & _ " <span style="display:block;font-size:12px;color:#5d5d5d">*The verification code is valid only for 24 hours.</span>" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " </tbody></table>" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr>" & @CRLF & _ " <td height="24px"></td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr id="m_-2051398760120817894footer">" & @CRLF & _ " <td>" & @CRLF & _ " <table width="100%">" & @CRLF & _ " <tbody><tr>" & @CRLF & _ " <td style="background-color:#6d7777;padding:16px 24px;font-size:12px;color:#fff">" & @CRLF & _ " <table width="100%">" & @CRLF & _ " <tbody><tr>" & @CRLF & _ " <td id="m_-2051398760120817894footer-left">" & @CRLF & _ " <span style="display:block">test Inc.</span>" & @CRLF & _ " <span style="display:block">2-9-32 ssdsa-sss, puakano-shi, Tokyo, 000-8000, Japan</span>" & @CRLF & _ " <span style="display:block">Phone: +81-000-00-652</span>" & @CRLF & _ " <span id="m_-2051398760120817894copyright-mb" style="margin-top:16px">© 2020 amnimo Inc.</span>" & @CRLF & _ " </td>" & @CRLF & _ " <td id="m_-2051398760120817894footer-right">" & @CRLF & _ " <span style="display:block">© 2020 amnimo Inc.</span>" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " </tbody></table>" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " </tbody></table>" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " </tbody></table>" & @CRLF & _ " </center>" & @CRLF & _ "</div>" & @CRLF & _ "</div></div> Inc.</span>" & @CRLF & _ " </td>" & @CRLF & _ " <td id="m_-2051398760120817894footer-right">" & @CRLF & _ " <span style="display:block">© 2020 test Inc.</span>" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " </tbody></table>" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " </tbody></table>" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " </tbody></table>" & @CRLF & _ " </center>" & @CRLF & _ " </div>" & @CRLF & _ " </div></div>" 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