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]
  • Character class intersection
    [\w&&[^\d]]
  • 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
Processing...

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 $sRegex = "(?im)[^\n.!?:]*(?:thanks[ .?!]*$|thank[ -]you[ .?!]*$|(?:please|help|suggest(?:ions)|thanks)\b[^\n.!?:]*\b(?:help|ap+reciat\w*|me|advan\w*|a ?lot)\b[^\n.!?:]*)[.!?]*[ ]*" Local $sString = "I don't know what's going on. Any help would be appreciated. How can I do this?" & @CRLF & _ "" & @CRLF & _ "Any suggestions are appreciated :)" & @CRLF & _ "" & @CRLF & _ "Please help me, i will thank you. How I do this?" & @CRLF & _ "" & @CRLF & _ "I hope you guys can help me. Thanks for any help." & @CRLF & _ "" & @CRLF & _ "All suggestions are appreciated, thanks" & @CRLF & _ "" & @CRLF & _ "Thanks in advance." & @CRLF & _ "" & @CRLF & _ "Could you help me?" & @CRLF & _ "" & @CRLF & _ "I hope you can please help me buddy!" & @CRLF & _ "" & @CRLF & _ "please help" & @CRLF & _ "" & @CRLF & _ "Can someone please guide me where I am going wrong ?" & @CRLF & _ "" & @CRLF & _ "I have no teacher or any instructor because I am learning programming on my own, so please any help is appreciated. Thanks" & @CRLF & _ "" & @CRLF & _ "thanks in advance!" & @CRLF & _ "" & @CRLF & _ "thanks in advantage!" & @CRLF & _ "" & @CRLF & _ "Thanks in advance!" & @CRLF & _ "" & @CRLF & _ "kindly help me with the step by step solution.. thanks in advance" & @CRLF & _ "" & @CRLF & _ "__Thanks in advance.__" & @CRLF & _ "" & @CRLF & _ "Thanks a lot!" & @CRLF & _ "" & @CRLF & _ "Thank you!!!" & @CRLF & _ "" & @CRLF & _ " also id like to thank you for any help in advance. let me first state that i am aware of possible security issues and will address those accordingly." & @CRLF & _ "" & @CRLF & _ "thanks!!" & @CRLF & _ "" & @CRLF & _ "Do Not Match:" & @CRLF & _ "" & @CRLF & _ "Software for tanks. It would please my boss. " & @CRLF & _ "" & @CRLF & _ "Please look at this example." & @CRLF & _ "" & @CRLF & _ "Thanks to Microsoft, I can no longer log in to my email." & @CRLF & _ "" & @CRLF & _ "Please stop sending me emails Microsoft! << Nobody has ever said that on SO." & @CRLF & _ "" & @CRLF & _ "Please don't ever do this. << This is a common statement in PHP/MySQL answers!" & @CRLF & _ "" & @CRLF & _ "Please don't tell me you are using regular expressions to validate urls when there's the Uri.TryCreate method." & @CRLF & _ "" & @CRLF & _ "Thank you to AndrewMalinnkov for the answer!" 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