#include "str.h"
int head_replace(String *item,String *newhead);
char *item_getahead(int group, int num, char *wanted);
void item_purgelost(int group, int range, int *ngood, int *nbad);
String *item_gettext(int offset, int len);
String *item_xref(char *header, int r1, int r2)  ;
String *item_head(int group, int num);
String *item_body(int group, int num);
int item_open(int group,int num);
int item_suck(String *item);
int item_save(int group, int num, String *sitem);
String *xover_make(String *sitem, int num);
char *get_ahead(String *sitem, char *head);
char *get_head(char *s);
char *item_xover(int grp, int num);
int item_kill(int grp, int num);
void diskuse_add(int x);
void diskuse_set(int x);
int diskuse_get(void);




int item_kill(int g, int n);
int item_purge(void);
void item_purgedo(int g, int num);
int kill_cmp(const void *aa, const void *bb);
int kill_max(void);
void dalloc(void **x, int n);

int item_purgestart(int group, int num);
int item_purgeclose(int group, int num);
int item_purgewrite(int group, int num, String *shead, String *sbody) ;

int item_findfirst(int group, int first, int last);
void item_flush(void);
void cache_flush_one(int nxt);
int cache_open(char *fname, char *iname);
int item_delete(int g, int n);
int item_tryagain(void);