NBF Parser.txt

char = "a".."z";

palabra = char {char};

expminima = "\" | "(" ")" | "(" exp ")" | palabra [ "*" ] | exp;

expbasica = expminima {"+" expminima};

exp = expbasica ["*"] ["+" ("("expbasica")" | expbasica)];

(acepta doble **)



char = "a".."z";

palabra = char {char};

expminima = "\" | "(" ")" | "(" exp ")" | palabra [ "*" ] | exp;

expbasica = expminima {"+" expminima};

exp = expbasica ["+" ("("expbasica")" | expbasica)];

(arregla doble**)




char = "a".."z";

palabra = char {char};

expminima = "\" | "(" ")" | "(" exp ")" | palabra [ "*" ] | exp;

exp = expminima ["+" ("("expminima")" | expminima)];

(posible minimizacion)



char = "a".."z";

palabra = char {char};

expminima = "\" | "(" ")" | "(" exp ")" | palabra [ "*" ] | exp;

exp = expminima ["+" expminima];

(posible minimizacion de la posible minimizacion) (no permite ejemplo del profesor)



char = "a".."z";

palabra = char {char};

expminima = "\" | "(" ")" | "(" exp ")" | palabra [ "*" ] | exp;

exp = expminima ["+" expminima | expminima];

(problemas con \a , \(a+b))


char = "a".."z";

palabra = char {char};

expminima = "(" ")" | "(" exp ")" | palabra [ "*" ] | exp;

expbasica = ("\" ["+" expminima]) | expminima

exp = expbasica ["+" expbasica | expbasica];

No es ll1 por exp en expminima


char = "a".."z";

palabra = char {char};

expminima = "(" ")" | "(" exp ")" | palabra [ "*" ];

expbasica = ("\" ["+" expminima]) | expminima

exp = expbasica {"+" expbasica | expbasica};

(problemas con \a , \(a+b))



char = "a".."z";

palabra = char {char};

expminima = "(" ")" | "(" exp ")" | palabra [ "*" ];

expbasica = ("\" "+" expbasica) | expminima | "\"         #Parsing solo con nexttoken si \

exp = expbasica {"+" expbasica | expbasica};

Correo del profesor, correcciones:


char = "a".."z";

palabra = char {char};

expminima = "\" | "(" exp ")" | palabra [ "*" ];

exp = expminima {"+" expminima | expminima};

(no se contempla (ab)*  )


symbol = "a".."z" | "0".."1";

palabra = symbol {symbol};

expminima = "\" | "(" exp ")" [ "*" ] | palabra [ "*" ];

exp = expminima {"+" expminima | expminima};