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

/
/
gms

Test String

Code Generator

Generated Code

// include the latest version of the regex crate in your Cargo.toml extern crate regex; use regex::Regex; fn main() { let regex = Regex::new(r"(?ms)<!--a5-->.*<!--5-->").unwrap(); let string = "<!doctype html> <html> <head> <meta charset=\"utf-8\"> <title>Sistema H |Produto, Odin</title> <link rel=\"stylesheet\" type=\"text/css\" href=\"tema.d/oficial.d/css/page.css\"> <link rel=\"stylesheet\" type=\"text/css\" href=\"tema.d/oficial.d/css/menu.css\"> <script type=\"text/javascript\"> server = \"http://localhost/g2%20soft/ecomerce/\"; </script> <script src=\"tema.d/oficial.d/js/wrequest.js\"></script> </head> <body lang=\"pt-br\"> <nav id=\"menunav\"> <header> <img src=\"tema.d/oficial.d/img/logo com fundo transparente.png\" alt=\"\"> </header> <ul class=\"menu\"> <li class=\"menufechado\" link=\"perfil\" submenu=\"true\" > <span onclick=\"menuOpen(this)\">+ FabricaA[Fabrica]</span> <ul class=\"submenu\"> <li class=\"menufechado\" link=\"edit_perfil\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Perfil</span> </li> <li class=\"menufechado\" link=\"edit_perfil?a=sair\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Sair</span> </li> </ul> </li> <li class=\"menufechado\" link=\"list_meusprodutos\" submenu=\"true\" > <span onclick=\"menuOpen(this)\">+ Produtos</span> <ul class=\"submenu\"> <li class=\"menufechado\" link=\"list_meusprodutos\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Meus Produtos</span> </li> <li class=\"menufechado\" link=\"add_produto\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Cadastrar Produto</span> </li> <li class=\"menufechado\" link=\"list_valortipo\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Tabelas de Preço</span> </li> </ul> </li> <li class=\"menufechado\" link=\"list_meusclientes\" submenu=\"true\" > <span onclick=\"menuOpen(this)\">+ Clientes</span> <ul class=\"submenu\"> <li class=\"menufechado\" link=\"list_meusclientes\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Meus Clientes</span> </li> <li class=\"menufechado\" link=\"list_naoclientes\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Não Clientes</span> </li> </ul> </li> <li class=\"menufechado\" link=\"#\" submenu=\"true\" > <span onclick=\"menuOpen(this)\">+ Cadastro</span> <ul class=\"submenu\"> <li class=\"menufechado\" link=\"add_produto\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Produto</span> </li> <li class=\"menufechado\" link=\"add_formadepagamento\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Forma de pagamento</span> </li> <li class=\"menufechado\" link=\"add_prasodeentrega\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Praso de pagamento</span> </li> </ul> </li> <li class=\"menufechado\" link=\"list_pedidosfabrica\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Pedidos</span> </li> <li class=\"menufechado\" link=\"mensagens\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Mensagens</span> </li> <li class=\"menufechado\" link=\"\" submenu=\"true\" > <span onclick=\"menuOpen(this)\">+ Relatorios</span> <ul class=\"submenu\"> <li class=\"menufechado\" link=\"rela_produtosvendidos\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Produtos Vendidos</span> </li> <li class=\"menufechado\" link=\"rela_produtoscadastrados\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Produtos Cadastrados</span> </li> <li class=\"menufechado\" link=\"rela_clientescadastrados\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Clientes Cadastrados</span> </li> </ul> </li> <li class=\"menufechado\" link=\"\" submenu=\"false\" > <span onclick=\"menuOpen(this)\">Lançamentos</span> </li> </ul> </nav> <content> <h1>Produto, Odin</h1> <link rel=\"stylesheet\" href=\"tema.d/oficial.d/css/view_produto.css\"> <div class=\"page_listabas\"> <!--a5--> <div class=\"page_abalabel \" onclick=\"link('list_loja')\">Loja</div> <!--5--> <div class=\"page_abalabel page_abalabel_opened\">Ver</div> <!--a6--> <div class=\"page_abalabel\" onclick=\"link('edit_produto?id=52')\">Detalhes</div> <div class=\"page_abalabel\" onclick=\"link('edit_produtomidia?id=52')\">Midias</div> <!--6--> </div> <div class=\"page_aba\"> <div id=\"referencia\">Odin</div> <div class=\"midias\"> <div class=\"midia_view\"> <img src=\"anexo\\97\" alt=\"midia0\" id=\"midia_view_img\"> </div> <div class=\"midias_left\"> <span> <img src=\"tema.d/oficial.d/img/midiasview_arrow_left.svg\" alt=\"\"> </span> </div> <div class=\"midias_right\"> <span> <img src=\"tema.d/oficial.d/img/midiasview_arrow_right.svg\" alt=\"\"> </span> </div> <div class=\"midia_list\"><div class=\"\"> <img src=\"anexo/97\" alt=\"\" onclick=\"setMidia(this)\"> </div> <div class=\"\"> <img src=\"anexo/98\" alt=\"\" onclick=\"setMidia(this)\"> </div> </div> </div> <div class=\"detalhes\"> <p>Odim, tambem conhecido como pai de todos.</p> <p> 2cx por <valor>R$ 0,00</valor> </p> <p>[52]Hidralica Industrial/Eletrica</p> </div> <div class=\"formasdepagamento\"> <p>Podendo ser pago:</p> {{formas de pagamento}} </div> <div class=\"outrosprodutos\"> <div class=\"produto\"> <img src=\"anexo/0\" alt=\"\"> </div> {{outrosprodutos}} </div> </div> <script type=\"text/javascript\" src=\"tema.d/oficial.d/js/view_produto.js\"></script> <footer>G2</footer> </content> <div class=\"menu-button\" onclick=\"menuShow()\">&equiv;</div> <div class=\"flutuante\" id=\"flutuante\">Loading...</div> <div class=\"msgbox_fundo\" id=\"msgbox_fundo\" onclick=\"MSGbox.close()\"> <div class=\"msgbox_box\"> <span class=\"button msgbox_close\" onclick=\"MSGbox.close()\">X</span> <div class=\"msgbox_conteudo\" id=\"msgbox_conteudo\"> </div> </div> </div> <script type=\"text/javascript\" src=\"tema.d/oficial.d/js/page.js\"></script> <script type=\"text/javascript\" src=\"tema.d/oficial.d/js/menu.js\"></script> </body> </html>"; // result will be an iterator over tuples containing the start and end indices for each match in the string let result = regex.captures_iter(string); for mat in result { println!("{:?}", mat); } }

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 Rust, please visit: https://docs.rs/regex/latest/regex/