YYEMPTY
if (yytoken != YYEMPTY)
yychar = YYEMPTY; /* Cause a token to be read. */
if (yychar == YYEMPTY)
yychar = YYEMPTY;
yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar);
yychar = YYEMPTY;
if (yychar != YYEMPTY)
#define yyclearin (yychar = YYEMPTY)
if (yychar == YYEMPTY) \