typedef union { int val; char* str; Re2 re; } YYSTYPE; extern YYSTYPE yylval; #define LCLASS 57346 #define LCHAR 57347 #define LLPAREN 57348 #define LRPAREN 57349 #define LALT 57350 #define LSTAR 57351 #define LPLUS 57352 #define LQUES 57353 #define LBEGIN 57354 #define LEND 57355 #define LDOT 57356 #define LBAD 57357 #define LNEWLINE 57358