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
Processing...

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#"(?m)(\(\"STRCONNEXION\"\)?.=?.*)\"(.*?)\""#).unwrap(); let string = "<SCRIPT LANGUAGE=\"VBScript\" RUNAT=Server> 'Session_OnStart S'ex�cute la premi�re fois qu'un utilisateur utilise une page de votre application 'Session_OnEnd S'ex�cute en cas de d�passement du d�lai de la session d'un utilisateur ou quand celui-ci quitte votre application 'Application_OnStart S'ex�cute une fois lorsque la premi�re page de votre application est utilis�e pour la premi�re fois par un utilisateur 'Application_OnEnd S'ex�cute une fois lors de l'arr�t du serveur Web Sub Session_OnStart 'Session(\"STRCONNEXION\")=\"wowoowow\" Session(\"STRCONNEXION\")=\"wowoowow\" 'Session(\"STRCONNEXION\")=\"wowoowow\" Session.Timeout = 240 Session(\"Connected\") = 0 ' Utilisateur n'est pas encore authentifie Session(\"langue\") = \"ita\" 'Set Session(\"SiteId\") HostToSiteId End Sub Sub Session_OnEnd Session.Abandon end Sub Sub Application_OnStart Application(\"Titre\") = \"GVI\" ' Composants COM Application(\"AccesBannieres.Banniere\") = \"AccesBannieresGVI.Banniere\" Application(\"AccesBatch.Batch\") = \"AccesBatchGVI.Batch\" Application(\"AccesCheck.Check\") = \"AccesCheckGVI.Check\" Application(\"AccesCibles.Cibles\") = \"AccesCiblesGVI.Cibles\" Application(\"AccesCibles.Produits\") = \"AccesCiblesGVI.Produits\" Application(\"AccesCommande.Commande\") = \"AccesCommandeGVI.Commande\" Application(\"AccesCommunication.Communication\") = \"ACGVI.Communication\" Application(\"AccesDepotVente.GestionCommande\") = \"AccesDepotVenteGVI.GestionCommande\" Application(\"AccesDepotVente.InfosVo\") = \"AccesDepotVenteGVI.InfosVo\" Application(\"AccesDepotVente.Mails\") = \"AccesDepotVenteGVI.Mails\" Application(\"AccesEncheres.Administrateur\") = \"AccesEncheresGVI.Administrateur\" Application(\"AccesEncheres.Cloture\") = \"AccesEncheresGVI.Cloture\" Application(\"AccesEncheres.ListeCriteres\") = \"AccesEncheresGVI.ListeCriteres\" Application(\"AccesEncheres.Utilisateur\") = \"AccesEncheresGVI.Utilisateur\" Application(\"AccesFicheVO.FicheVO\") = \"AccesFicheVOGVI.FicheVO\" Application(\"AccesInscriptions.Inscriptions\") = \"AIGVI.Inscriptions\" Application(\"AccesListeVO.AlerteEmail\") = \"AccesListeVOGVI.AlerteEmail\" Application(\"AccesListeVO.ListeCriteres\") = \"AccesListeVOGVI.ListeCriteres\" Application(\"AccesListeVO.ListeCriteresDV\") = \"AccesListeVOGVI.ListeCriteresDV\" Application(\"AccesListeVO.ListeVO\") = \"AccesListeVOGVI.ListeVO\" Application(\"AccesListeVO.ListeVODV\") = \"AccesListeVOGVI.ListeVODV\" Application(\"AccesLogin.Login\") = \"AccesLoginGVI.Login\" Application(\"AccesMix.Mix\") = \"AccesMixGVI.Mix\" Application(\"AccesParameters.Parameters\") = \"AccesParametersGVI.Parameters\" Application(\"AccesPrevente.Prevente\") = \"AccesPreventeGVI.Prevente\" Application(\"AccesPromotions.Administration\") = \"AccesPromotionsGVI.Administration\" Application(\"AccesPromotions.Promotions\") = \"AccesPromotionsGVI.Promotions\" Application(\"AccesReport.Reports\") = \"AccesReportGVI.Reports\" Application(\"AccesStopAffaire.Administrateur\") = \"ASAGVI.Administrateur\" Application(\"AccesStopAffaire.ListeCriteres\") = \"ASAGVI.ListeCriteres\" Application(\"AccesStopAffaire.StopAffaire\") = \"ASAGVI.StopAffaire\" Application(\"AccesSuiviHisto.SuiviHisto\") = \"AccesSuiviHistoGVI.SuiviHisto\" Application(\"AccesVenteParLot.Administrateur\") = \"AVPLGVI.Administrateur\" Application(\"AccesVenteParLot.ListeCriteres\") = \"AVPLGVI.ListeCriteres\" Application(\"AccesVenteParLot.VenteParLot\") = \"AVPLGVI.VenteParLot\" Application(\"AccesVisibilite.Visibilite\") = \"AccesVisibiliteGVI.Visibilite\" ' Nombre de r�sultat par page dans la liste VO Application(\"PageToResult\") = 20 End Sub Sub HostToSiteId Dim audiHost, vwHost, currentHost audiHost = \"www.audi-lineos.it\" vwHost = \"www.vgilineos.it\" currentHost = Request.ServerVariables(\"HTTP_HOST\") If currentHost = audiHost Then Session(\"SiteId\") = 1 Session(\"SiteName\") = \"Audi\" End If If currentHost = vwHost Then Session(\"SiteId\") = 2 Session(\"SiteName\") = \"VW\" End If If currentHost = \"localhost:8080\" Then Session(\"SiteId\") = 2 Session(\"SiteName\") = \"VW\" End If End Sub </SCRIPT> "; // 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/