Regular Expressions 101

Save & Share

  • Regex Version: ver. 1
  • Update Regex
    ctrl+⇧+s
  • Save new Regex
    ctrl+s
  • Add to Community Library

Flavor

  • PCRE2 (PHP >=7.3)
  • PCRE (PHP <7.3)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java 8
  • .NET 7.0 (C#)
  • Rust
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests

Tools

Sponsors
There are currently no sponsors. Become a sponsor today!
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
No Match

/
/
gm

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox Local $sRegex = "(?m)(ENERGIA ELETRICA CONSUMO(.|\n)*?%)" Local $sString = ""5758 6128 370 kWh 1 370 kWh 11,93 kWh 12/07/2019 01/08/2019" & @CRLF & _ "Mês kWh Dt.Pgto. Valor" & @CRLF & _ "06/2019 355 17/06/2019 343,79" & @CRLF & _ "NOTA FISCAL/CONTA DE ENERGIA ELÉTRICA N° 085.976.711 - SÉRIE B" & @CRLF & _ "Emitida em 03/07/2019" & @CRLF & _ "05/2019 332 14/05/2019 306,84" & @CRLF & _ "Produto Valor Valor Base Aliq." & @CRLF & _ "04/2019 415 29/05/2019 378,67" & @CRLF & _ "Descrição Un. Consumo Unitário Total Cálc. ICMS" & @CRLF & _ "03/2019 308 14/05/2019 269,81" & @CRLF & _ "ENERGIA ELETRICA CONSUMO kWh 370 0,787324 291,31 291,31 29,00%" & @CRLF & _ "02/2019 347 26/04/2019 305,09" & @CRLF & _ "ENERGIA CONS. B.AMARELA kWh 0,54 0,54 29,00%" & @CRLF & _ "01/2019 341 11/03/2019 324,39" & @CRLF & _ "12/2018 301 26/12/2018 287,83"" Local $sSubst = "" 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