extern void tk_init P((void)); extern void tk_clear P((void)); extern bool tk_include P((char*)); extern void tk_endinclude P((void)); extern unsigned short tk_line P((void)); extern char *tk_filename P((void)); extern void tk_setline P((unsigned int)); extern void tk_setfilename P((char*)); extern void tk_header P((int)); extern void tk_setpp P((int)); extern int tk_gettok P((void)); extern void tk_skiptonl P((int)); extern int tk_expand P((macro*)); extern char *yytext; extern int yyleng; extern long yynumber; extern xfloat yyfloat;