clock setstring(yyextra, yylval, yytext); return CLOCK;
double setstring(yyextra, yylval, yytext); return DOUBLE;
enum setstring(yyextra, yylval, yytext); return ENUM;
+env setstring(yyextra, yylval, yytext); return ENV;
event setstring(yyextra, yylval, yytext); return EVENT;
floating_point setstring(yyextra, yylval, yytext); return FLOATING_POINT;
float setstring(yyextra, yylval, yytext); return FLOAT;