Regular Expressions 101

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  • Unit Tests (14)

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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
No Match

/
/
gm

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox Local $sRegex = "(?m)(?<!animations|foreach|completion|block|dispatch|configuration|mas_makeConstraints|dispatchUI):\s*(\^(?!\))[^{;]*\{\s+(?!\s*@strongify\(self)[^{}]*?\b(?:self|_)(?!\s+class))" Local $sString = " [[RACObserve(self, model) ignore:nil] subscribeNext: ^(id value) {" & @CRLF & _ " // UI配置" & @CRLF & _ " @strongify(self);" & @CRLF & _ " MyBarModel *myBarModel = (MyBarModel*) value;" & @CRLF & _ " [self.imgBar sd_setImageWithURL:[NSURL URLWithString:myBarModel.barImgUrl]" & @CRLF & _ " placeholderImage:[UIImage imageNamed:@"logo-bar"]];" & @CRLF & _ " self.lblBarTitle.text = myBarModel.barName;" & @CRLF & _ " self.lblBarDescription.text = myBarModel.barDesc;" & @CRLF & _ " self.barDescriptionTextField.text = myBarModel.barDesc;" & @CRLF & _ " self.cellType = DDMyInstallBarCellTypeFinish;" & @CRLF & _ " }];" Local $sSubst = "\1," Local $sResult = StringRegExpReplace($sString, $sRegex, $sSubst) MsgBox($MB_SYSTEMMODAL, "Result", $sResult)

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