analizador.flex

package compilador;
import static compilador.Token.*;
%%
%class Lexer
%type Token
F = [int main()]
L = [a-zA-Z][a-zA-Z0-9_]*
D = [0-9]{1,9}
E = ""
COMENTARIO_multiLINEA=\"\"\"(\\.|[^\"\\])*\"\"\"
COMENTARIO_LINEA="#".*
NOMBRE_FUNCION="def ".*
NOMBRE_CLASE="class ".*
WHITE =[ \t\r\n]
%{
public String lexeme;
%}
%%

{WHITE} {/*Ignore*/}
"+"|"-"|"*"|"/"|"**"|"//"|"%" {lexeme=yytext(); return OPERADOR_ARITMETICO;}
"False"|"class"|"finally"|"is"|"return"|"None"|"continue"|"for"|"lambda"|"try"|"True"|"def"|"from"|"nonlocal"|"while"|"del"|"global"|"with"|"as"|"elif"|"if"|"yield"|"assert"|"else"|"import"|"pass"|"break"|"except"|"in"|"raise" {lexeme=yytext(); return PALABRA_RESERVADA;}
"abs"|"delattr"|"hash"|"memoryview"|"set"|"all"|"dict"|"help"|"min"|"setattr"|"any"|"dir"|"hex"|"next"|"slice"|"ascii"|"divmod"|"id"|"object"|"sorted"|"bin"|"enumerate"|"input"|"oct"|"staticmethod"|"bool"|"eval"|"int"|"open"|"str"|"breakpoint"|"exec"|"isinstance"|"ord"|"sum"|"bytearray"|"filter"|"issubclass"|"pow"|"super"|"bytes"|"float"|"iter"|"print"|"tuple"|"callable"|"format"|"len"|"property"|"type"|"chr"|"frozenset"|"list"|"range"|"vars"|"classmethod"|"getattr"|"locals"|"repr"|"zip"|"compile"|"globals"|"map"|"reversed"|"__import__"|"complex"|"hasattr"|"max"|"round" {lexeme=yytext(); return FUNCION;}
"&"|"|"|"^"|"~"|"<<"|">>" {lexeme=yytext(); return OPERADOR_BINARIO;}
"<"|">"|"<="|">="|"=="|"!="|"<>" {lexeme=yytext(); return OPERADOR_RELACIONAL;}
"and"|"or"|"not" {lexeme=yytext(); return OPERADOR_LOGICO;}
{NOMBRE_FUNCION} {lexeme=yytext(); return DECLARACION_FUNCION;}
{NOMBRE_CLASE} {lexeme=yytext(); return DECLARACION_CLASE;}
"="|"+="|"-="|"*="|"/="|"**="|"**=" {lexeme=yytext(); return OPERADOR_ASIGNACION;}
"(" {lexeme=yytext(); return ABRE_PARENTESIS;}
\"(\\.|[^\"\\])*\" {lexeme=yytext(); return CADENA;}
{COMENTARIO_multiLINEA}|{COMENTARIO_LINEA} {lexeme=yytext(); return COMENTARIO;}
{L} {lexeme=yytext(); return VARIABLE;}
{D} {lexeme=yytext(); return NUMERO_ENTERO;}
{D}+"."{D} {lexeme=yytext(); return NUMERO_REAL;}
")" {lexeme=yytext(); return CIERRA_PARENTESIS;}
"{" {lexeme=yytext(); return ABRE_LLAVES;}
"}" {lexeme=yytext(); return CIERRA_LLAVES;}
";" {lexeme=yytext(); return FIN;}
. {return ERROR;}