struct place;

void macro_define(struct place *, const char *macro,
		  struct place *, const char *expansion);
void macro_undef(const char *macro);
bool macro_isdefined(const char *macro);

char *macroexpand(struct place *, char *buf, size_t len, bool honordefined);

void macro_sendline(struct place *, char *buf, size_t len);
void macro_sendeof(struct place *);