Regular Expressions 101

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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

/
/
gs

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 = "(?s)\[\@if(not)?:([a-zA-Z0-9]+)(?:=(.*?))?\].*?\[\@endif:\2\]" Local $sString = "<!-- <h1>[!WLANSettings]</h1> -->" & @CRLF & _ "[@if:examplevar=notgiven]this text won't show[@endif:examplevar]" & @CRLF & _ "[@if:wlanena]" & @CRLF & _ "[@if:wlanauto]" & @CRLF & _ "<table id="wlanavail" class="colorrows inputtable">" & @CRLF & _ " <tr id="firstrow">" & @CRLF & _ " <th width="30px"></th>" & @CRLF & _ " <th width="240px">[!Name] (SSID)</th>" & @CRLF & _ " <th width="110px">[!Encryption]</th>" & @CRLF & _ " <th width="150px">[!SignalStrength]</th>" & @CRLF & _ " <th width="200px">[!MAC]</th>" & @CRLF & _ " </tr>" & @CRLF & _ "" & @CRLF & _ " <tr id="loadingrow">" & @CRLF & _ " <td colspan=5 class="centertext"><img src="resources/loading.gif"" & @CRLF & _ " id="loadingWlanScan"></td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr>" & @CRLF & _ " <td></td>" & @CRLF & _ " <td colspan=4><input type="button" id="rescan"" & @CRLF & _ " value="[!Refresh]" style="width: 200px"></td>" & @CRLF & _ " </tr>" & @CRLF & _ "</table>" & @CRLF & _ "<p></p>" & @CRLF & _ "[@endif:wlanauto]" & @CRLF & _ "<table id="wlansettings" class="inputTable">" & @CRLF & _ " <tr id="wlannamerow" [@if:wlanauto]style="display: none;"[@endif:wlanauto]>" & @CRLF & _ " <td>[!WLANName]</td>" & @CRLF & _ " <td><input type="text" name="wlanname" id="wlanname"" & @CRLF & _ " [@if:wlanauto]value="[@wlanname]"[@endif:wlanauto] style="width: 309px;"></td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr>" & @CRLF & _ " <td>[!Password]:</td>" & @CRLF & _ " <td><input type="text" name="wlanpass" id="wlanpass"" & @CRLF & _ " style="width: 309px;"></td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr>" & @CRLF & _ " <td colspan="2" >" & @CRLF & _ " <input type="button" " & @CRLF & _ " [@if:wlanauto]id="manualcfg" name="manualcfg" value="[!ManualConfig]"[@endif:wlanauto]" & @CRLF & _ " [@ifnot:wlanauto]id="autocfg" name="autocfg" value="[!AutomaticConfig]"[@endif:wlanauto]" & @CRLF & _ " onclick="handleMultiform(event, this);" style="width: 180px;">" & @CRLF & _ " </td>" & @CRLF & _ " </tr>" & @CRLF & _ " <tr>" & @CRLF & _ " <td>" & @CRLF & _ " <input type="hidden" name="encinput" id="encinput" value=""></td>" & @CRLF & _ " <td id="wlaninfo"></td>" & @CRLF & _ " </tr>" & @CRLF & _ "</table>" & @CRLF & _ "[@ipsettings]" & @CRLF & _ "" & @CRLF & _ "[@endif:wlanena]" & @CRLF & _ "[@ifnot:wlanena]" & @CRLF & _ "[!NoWLANDevicePluggedIn]" & @CRLF & _ "<p>" & @CRLF & _ " <input type="button" name="back" onclick="handleMultiform(event, this);" value="[!Back]" />" & @CRLF & _ "</p>" & @CRLF & _ "[@endif:wlanena]" & @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