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
No Match

/
/
g

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox Local $sRegex = "(<label(?!.*preferredMaxLayoutWidth).*numberOfLines.*>)" Local $sString = "" & @CRLF & _ "<label opaque="NO" userInteractionEnabled="NO" tag="5" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Label" lineBreakMode="tailTruncation"="4" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="fgY-Rp-veR">" & @CRLF & _ "<rect key="frame" x="6" y="40" width="288" height="60"/>" & @CRLF & _ "<animations/>" & @CRLF & _ "<constraints>" & @CRLF & _ "<constraint firstAttribute="height" constant="60" id="g3c-hD-Hf9"/>" & @CRLF & _ "</constraints>" & @CRLF & _ "<fontDescription key="fontDescription" type="system" pointSize="12"/>" & @CRLF & _ "<color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>" & @CRLF & _ "<nil key="highlightedColor"/>" & @CRLF & _ "</label>" & @CRLF & _ "<label opaque="NO" userInteractionEnabled="NO" numberOfLines="4" tag="10" contentMode="left" text="feedback" lineBreakMode="tailTruncation" numberOfLines="4" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="M98-QE-PMx">" & @CRLF & _ " <rect key="frame" x="7" y="227" width="287" height="70"/>" & @CRLF & _ " <animations/>" & @CRLF & _ " <constraints>" & @CRLF & _ " <constraint firstAttribute="height" constant="70" id="uPb-iM-7XM"/>" & @CRLF & _ " </constraints>" & @CRLF & _ " <fontDescription key="fontDescription" type="system" pointSize="14"/>" & @CRLF & _ " <color key="textColor" red="0.058823529409999999" green="0.51372549020000002" blue="0.94901960780000005" alpha="1" colorSpace="calibratedRGB"/>" & @CRLF & _ " <nil key="highlightedColor"/>" & @CRLF & _ " </label>" Local $sSubst = "" 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