struct _fnmatch_state;
typedef struct _fnmatch_state fnmatch_state;
/*compile pattern*/
fnmatch_state* fnmatch_compile(char *pattern,int flags);

/* add prefix to matched strings.
	 suppose you want match foo againist /home/foo, /home/bar/foo, /home/bar/bar
	 fnmatch_state* s=fnmatch_compile("foo",0);
	 fnmatch_state* home=fnmatch_prefix(s,"/home");
	 fnmatch_state* bar=fnmatch_prefix(s,"/bar");
	 fnmatch_exec(home,"foo"); 
	 fnmatch_exec(bar,"foo");
	 fnmatch_exec(bar,"bar");
 */
fnmatch_state* fnmatch_prefix(fnmatch_state *pattern,char *prefix);

int fnmatch_exec(fnmatch_state * pattern,char *string);