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

@"
"
gmi

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 $sRegex = "(?mi)^\s*Failed\s(.*)([\s\S]*?)(Stack\sTrace:\s*at\s)(.*)\s+in\s+(.*):line\s+(\d+)\s*$" Local $sString = "Test run for /home/runner/work/Library/Library.Tests/bin/Debug/net7.0/Library.Tests.dll (.NETCoreApp,Version=v7.0)" & @CRLF & _ "Microsoft (R) Test Execution Command Line Tool Version 17.7.0-preview-23364-03+bc17bb9693cfc4778ded51aa0ab7f1065433f989 (x64)" & @CRLF & _ "Copyright (c) Microsoft Corporation. All rights reserved." & @CRLF & _ "" & @CRLF & _ "Starting test execution, please wait..." & @CRLF & _ "A total of 1 test files matched the specified pattern." & @CRLF & _ "[xUnit.net 00:00:00.55] Library.Tests.UnitTest1.DeliberateFail2 [FAIL]" & @CRLF & _ "[xUnit.net 00:00:00.56] Library.Tests.UnitTest1.DeliberateFail1 [FAIL]" & @CRLF & _ " Failed Library.Tests.UnitTest1.DeliberateFail2 [< 1 ms]" & @CRLF & _ " Error Message:" & @CRLF & _ " System.Exception : Error message" & @CRLF & _ " Stack Trace:" & @CRLF & _ " at Library.Tests.UnitTest1.DeliberateFail2() in /home/runner/work/Library/Library.Tests/UnitTest1.cs:line 30" & @CRLF & _ " at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)" & @CRLF & _ " at System.Reflection.MethodInvoker.Invoke(Object obj, IntPtr* args, BindingFlags invokeAttr)" & @CRLF & _ " Failed Library.Tests.UnitTest1.DeliberateFail1 [< 1 ms]" & @CRLF & _ " Error Message:" & @CRLF & _ " Assert.True() Failure" & @CRLF & _ "Expected: True" & @CRLF & _ "Actual: False" & @CRLF & _ " Stack Trace:" & @CRLF & _ " at Library.Tests.UnitTest1.DeliberateFail1() in /home/runner/work/Library/Library.Tests/UnitTest1.cs:line 27" & @CRLF & _ " at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)" & @CRLF & _ " at System.Reflection.MethodInvoker.Invoke(Object obj, IntPtr* args, BindingFlags invokeAttr)" & @CRLF & _ "Results File: /home/runner/work/Library/Library.Tests/TestResults/test-results.trx" & @CRLF & _ "" & @CRLF & _ "Failed! - Failed: 2, Passed: 133, Skipped: 0, Total: 135, Duration: 549 ms - Library.Tests.dll (net7.0)" & @CRLF & _ "Error: Process completed with exit code 1." 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