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class O_url{
    constructor(        s    ){        this._s = s
        this.s_dir_separator = null        this.s_file_name = null        this.s_path_name = null
        this.s_protocol = null        this.s_windows_drive_letter = null    }    get s(){        return this._s    }    set s(value){        this._s = value        this.f_update_all()    }

    f_update_all(){
        // detect separator         this.s_dir_separator = '/'        var n_count_backslash = this.s.filter(s=>s=='\\').length        var n_count_slash = this.s.filter(s=>s=='/').length         if(n_count_backslash > n_count_slash){            this.s_dir_separator = '\\'        }

        // check if protocol
        // |-------------------- Schema-spezifischer Teil ---------------------|        // https://maxmuster:geheim@www.example.com:8080/index.html?p1=A&p2=B#ressource        // \___/   \_______/ \____/ \_____________/ \__/\_________/ \_______/ \_______/        //   |         |       |           |         |       |          |         |        // Schema+ Benutzer Kennwort      Host      Port    Pfad      Query    Fragment        // ⁺ (hier gleich Netzwerkprotokoll)
        var s_sep = ""        var a_s_part = this.s.split(s_sep)        var s_tmp = this.s        if(a_s_part.length > 1){            this.s_protocol = a_s_part.shift()            s_tmp = a_s_part.join(s_sep)        }
        var a_s_part = s_tmp.split(this.s_dir_separator)

        // we have no chance of checkinf if the first part of the path is a         // userpass domain port        // because the string 'maxmuster:geheim@www.example.com:8080' could be         // the name of a folder/director in linux , try it!: '$ mkdir maxmuster:geheim@www.example.com:8080'         var s_userpass_domain_port = a_s_part[0]
        //domain names         // They must start with a letter, end with a letter or digit, and have as interior characters only letters, digits, and hyphen. There are also some restrictions on the length. Labels must be 63 characters or less
        // file:///verzeichnis/unterverzeichnis/datei        // \__/ \___________________________________/        //   |                     |        // Schema                  |        //         Pfad zu einer lokalen Datei im Dateisystem des Rechners, der den URL interpretiert
    }
}