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
  • Match everything enclosed
    (?:...)
  • Capture everything enclosed
    (...)
  • 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)(^(\/\*)|([ \t'"](\/\*)))(?!\/)(.|[\r\n]|\n)+?\*\/\n?\n?" Local $sString = "/* 'aa/' */" & @CRLF & _ "" & @CRLF & _ "/*!test*/" & @CRLF & _ "" & @CRLF & _ "/* someone said 'hello' */" & @CRLF & _ "" & @CRLF & _ "/* "hello"*/" & @CRLF & _ "" & @CRLF & _ "/***test****/" & @CRLF & _ "" & @CRLF & _ "/******" & @CRLF & _ "'test'" & @CRLF & _ "****/" & @CRLF & _ "" & @CRLF & _ "/****" & @CRLF & _ "test" & @CRLF & _ "****/" & @CRLF & _ "" & @CRLF & _ "// let's try a single quote here "test"" & @CRLF & _ "" & @CRLF & _ "/*" & @CRLF & _ "test" & @CRLF & _ "*/" & @CRLF & _ "" & @CRLF & _ "/*'test'*/" & @CRLF & _ "" & @CRLF & _ "/*" & @CRLF & _ " test" & @CRLF & _ "*/" & @CRLF & _ "" & @CRLF & _ "/*" & @CRLF & _ " 'test ' */" & @CRLF & _ "" & @CRLF & _ "/** @require 'aa/*' */" & @CRLF & _ "" & @CRLF & _ ".test" & @CRLF & _ " content ''/* test */" & @CRLF & _ "" & @CRLF & _ ".test content "/* test */"" & @CRLF & _ "" & @CRLF & _ ".test content /* test */" & @CRLF & _ "" & @CRLF & _ "@require 'aaa/*'" & @CRLF & _ "" & @CRLF & _ "@require 'bbb/*' /* test */" & @CRLF & _ "" & @CRLF & _ "@require 'ccc/*'" & @CRLF & _ "" & @CRLF & _ "@require 'ccc/* ab */' /* test */" & @CRLF & _ "" & @CRLF & _ "@require 'ddd/*' /*test '*/" & @CRLF & _ "@require "ddd/*" /*test '*/" & @CRLF & _ "" & @CRLF & _ "@require 'eee/*'" & @CRLF & _ "// test again" & @CRLF & _ "" & @CRLF & _ "@require 'fff/*'" & @CRLF & _ "" & @CRLF & _ "@require 'ggg/*'" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "@require 'hhh/*'" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "@require 'iii/*'" & @CRLF & _ "" & @CRLF & _ "@require 'jjj/*' /* " & @CRLF & _ "test */" & @CRLF & _ "" & @CRLF & _ "@require 'kk/**/*'" 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