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alura-curso-regex's Introduction

alura-curso-regex

Comandos rotineiros

Âncoras

  • \b word boundary
  • ^ início do alvo
  • $ fim do alvo

Quantifer

  • {n, m} no mínimo n, no máximo m vezes
  • ? 0 ou 1 vez
  • + 1 ou mais vezes
  • * 0 ou mais vezes

Classes de char - []

  • [A-Z] letras de A até Z
  • [123] 1,2 ou 3
  • \d todos os dígitos = [0-9]
  • \s whitespace = [ \t\r\n\f]
  • \w wordchar [A-Za-z0-9]_

Grupos

  • (\w+) grupo de word chars
  • (\w+)? grupo opcional
  • (?:\w+) non-capturing group

Outros

  • [^caracter] negação

Help

  1. doc: https://www.rexegg.com/regex-quickstart.html
  2. simulador: https://regexr.com/

alura-curso-regex's People

Contributors

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Watchers

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