52 #define	s_clone(s)	s_copy((s)->ptr)  argument
53 #define	s_curlen(s)	((s)->ptr - (s)->base)  argument
54 #define	s_dup(s)	s_copy((s)->base)  argument
55 #define	s_getc(s)	(*((s)->ptr++))  argument
56 #define	s_peek(s)	(*((s)->ptr))  argument
57 #define	s_putc(s, c)	(((s)->ptr < (s)->end) ? \  argument
59 #define	s_reset(s)	((s) ? (*((s)->ptr = (s)->base) = '\0', (s)) : s_new())  argument
60 #define	s_restart(s)	((s)->ptr = (s)->base)  argument
61 #define	s_skipc(s)	((s)->ptr++)  argument
62 #define	s_space(s)	((s)->end - (s)->base)  argument
63 #define	s_terminate(s)  (((s)->ptr < (s)->end) ? \  argument
65 #define	s_to_c(s)	((s)->base)  argument
66 #define	s_ptr_to_c(s)	((s)->ptr)  argument