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

/
/
gm

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 = "(?m)^(?![^?\n]*\?).*good\s+answer" Local $sString = "Here are the strings I want to detect:" & @CRLF & _ "--------------------------------------" & @CRLF & _ "That a very good answer!" & @CRLF & _ "(Other than that, this is a really good answer and I've upvoted it.)" & @CRLF & _ "good answer dvdf!" & @CRLF & _ "dsds good answer cfds" & @CRLF & _ "It is a good answer, but I feel it played into the OP's hands really. You said what they wanted to hear - that they shouldn't freely share the information because it is like a child cheating on their homework. It is contrary to the spirit of this site, and I'm not sure that charging a colleague money to learn something work-based from you won't get the OP into trouble with their employer. Imagine if a doctor asked to confer with a fellow doctor in order to help a patient, and they charged each other for the information they shared. They'd be dismissed." & @CRLF & _ "" & @CRLF & _ "Here are the one I don't want to detect" & @CRLF & _ "-----------------------------------------" & @CRLF & _ "Thanks for this good answer! (I upvoted it) However, I still don't understand why I shouldn't mention that I believe whatever? What's the problem with that..." & @CRLF & _ "cxvd good answer? zedfs" & @CRLF & _ "ezdds? good answer dsf dsf" & @CRLF & _ "sdsd? dsfdsf? good answer!" & @CRLF & _ "Hi, the question is "How to tell blabla when X is my good friend", would you mind be a little more detail about how OP should do that when OP still want to be friend with both parties? Also, please take some time to read "How do I write a good answer" & @CRLF & _ "As a side note, here is a link to "How do I write a good answer?" & @CRLF & _ "Hi, this sound like a good answer to me, I just have one question though: Where you in a similar situation before where you successfully used this technic? In here it's better to back-up your answer with personal experience (here is a guide to How to write a good answer if you need it)" 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