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)^\s*((?:const\s+|virtual\s+|friend\s+|volatile\s+){0,4}\s*?(?:\w+\s*::)?\s*[\w]+)\s+(\w+)\s*\([\s\S]*?\)\s*(const)?\s*{" Local $sString = "#include "Port.h"" & @CRLF & _ "" & @CRLF & _ "namespace Port {" & @CRLF & _ "" & @CRLF & _ " uint8_t lirePin(volatile uint8_t * pin)" & @CRLF & _ " {" & @CRLF & _ " return * pin;" & @CRLF & _ " }" & @CRLF & _ " /*********************************************************************" & @CRLF & _ " * retourne vrai si les pin du port pin sont ouvert" & @CRLF & _ " * pin = PINA a PIND" & @CRLF & _ " *********************************************************************/" & @CRLF & _ " bool lirePin(uint8_t pins, volatile uint8_t * pin)" & @CRLF & _ " {" & @CRLF & _ " return (*pin & pins);" & @CRLF & _ " }" & @CRLF & _ " /*********************************************************************" & @CRLF & _ " * Met la pin du port port a 5V" & @CRLF & _ " * port = PORTA a PORTD" & @CRLF & _ " *********************************************************************/" & @CRLF & _ " void ouvrirPin(uint8_t pins, volatile uint8_t * port)" & @CRLF & _ " {" & @CRLF & _ " *port |= pins;" & @CRLF & _ " }" & @CRLF & _ " /*********************************************************************" & @CRLF & _ " * Met la pin du port port a 0V" & @CRLF & _ " * port = PORTA a PORTD" & @CRLF & _ " *********************************************************************/" & @CRLF & _ " void fermerPin(uint8_t pins, volatile uint8_t * port)" & @CRLF & _ " {" & @CRLF & _ " *port &= ~pins;" & @CRLF & _ " }" & @CRLF & _ " /*********************************************************************" & @CRLF & _ " * Met la pin du port ddr en Entree" & @CRLF & _ " * ddr = DDRA a DDRD" & @CRLF & _ " *********************************************************************/" & @CRLF & _ " void pinEntree(uint8_t pins, volatile uint8_t * ddr)" & @CRLF & _ " {" & @CRLF & _ " *ddr &= ~pins;" & @CRLF & _ " }" & @CRLF & _ " /*********************************************************************" & @CRLF & _ " * Met la pin du port ddr en Sortie" & @CRLF & _ " * ddr = DDRA a DDRD" & @CRLF & _ " *********************************************************************/" & @CRLF & _ " const volatile friend std::void pinSortie(uint8_t pins, " & @CRLF & _ "volatile uint8_t * ddr)" & @CRLF & _ " {" & @CRLF & _ " *ddr |= pins;" & @CRLF & _ " }" & @CRLF & _ " /*********************************************************************" & @CRLF & _ " * Met le port ddr en Entree" & @CRLF & _ " * ddr = DDRA a DDRD" & @CRLF & _ " *********************************************************************/" & @CRLF & _ " void portEntree(volatile uint8_t * ddr) const" & @CRLF & _ " {" & @CRLF & _ " *ddr = ENTREE;" & @CRLF & _ " }" & @CRLF & _ " /*********************************************************************" & @CRLF & _ " * Met le port ddr en Entree" & @CRLF & _ " * ddr = DDRA a DDRD" & @CRLF & _ " *********************************************************************/" & @CRLF & _ " void portSortie(volatile uint8_t * ddr)" & @CRLF & _ " {" & @CRLF & _ " *ddr = SORTIE;" & @CRLF & _ " }" & @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