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 $sRegex = "(?m)class [A-Za-z_$]*\s*\{" Local $sString = "class Entity" & @CRLF & _ "{" & @CRLF & _ " constructor(game,imageURL)" & @CRLF & _ " {" & @CRLF & _ " this.game = game;" & @CRLF & _ " this.sprite = new Sprite(this.game.c,imageURL);" & @CRLF & _ " " & @CRLF & _ " }" & @CRLF & _ " " & @CRLF & _ " " & @CRLF & _ " draw(depth,offset,textureSize,textureCoordinates,offsetX=0)" & @CRLF & _ " {" & @CRLF & _ " let scaleFactors = {" & @CRLF & _ " 1:1," & @CRLF & _ " 2:0.65," & @CRLF & _ " 3:0.45" & @CRLF & _ " };" & @CRLF & _ " let scaleFactor = scaleFactors[depth];" & @CRLF & _ " " & @CRLF & _ " let x = Math.floor(offset.x + textureCoordinates[0] + (textureSize[0] / 2) - (this.sprite.image.width * scaleFactor / 2));" & @CRLF & _ " let y = Math.floor(offset.y + textureCoordinates[1] + (textureSize[1] / 2) - (this.sprite.image.height * scaleFactor) + 6 * scaleFactor);" & @CRLF & _ " " & @CRLF & _ " x = x + offsetX * scaleFactor;" & @CRLF & _ " " & @CRLF & _ " let width = Math.floor(this.sprite.image.width * scaleFactor);" & @CRLF & _ " let height = Math.floor(this.sprite.image.height * scaleFactor);" & @CRLF & _ " " & @CRLF & _ " let entityFades = {" & @CRLF & _ " 1:1," & @CRLF & _ " 2:0.5," & @CRLF & _ " 3:0.1" & @CRLF & _ " }" & @CRLF & _ " let filter = '';" & @CRLF & _ " if(this.game.level.entities.fadeType === 'darken')" & @CRLF & _ " {" & @CRLF & _ " filter += 'brightness('+entityFades[depth]+')';" & @CRLF & _ " }" & @CRLF & _ " " & @CRLF & _ " this.sprite.draw(" & @CRLF & _ " x," & @CRLF & _ " y," & @CRLF & _ " width," & @CRLF & _ " height," & @CRLF & _ " 0," & @CRLF & _ " 0," & @CRLF & _ " this.sprite.image.width," & @CRLF & _ " this.sprite.image.height," & @CRLF & _ " filter" & @CRLF & _ " );" & @CRLF & _ " }" & @CRLF & _ "}" 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